/* roulang page: index */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: transparent;
        }

        .site-header.scrolled {
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
        }

        .site-header.scrolled .logo-link {
            text-shadow: none;
            color: #FFFFFF;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
        }

        .site-header.scrolled .nav-link {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
        }

        .site-header.scrolled .mega-trigger {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 20px;
            min-width: 520px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            z-index: 999;
            pointer-events: none;
        }

        .mega-trigger-wrap:hover .mega-panel,
        .mega-trigger:focus-within+.mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            gap: 12px;
            padding: 12px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
            color: var(--text-dark);
        }

        .mega-card:hover {
            background: var(--bg-light);
        }

        .mega-card-img {
            width: 64px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: #E5E7EB;
        }

        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .mega-card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger-line {
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            background: var(--bg-dark);
            z-index: 999;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 20px;
            padding: 40px;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition-smooth);
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu .nav-link {
            font-size: 1.25rem;
            padding: 14px 24px;
            color: #FFFFFF;
            text-shadow: none;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.88) 0%, rgba(15, 20, 25, 0.55) 60%, rgba(15, 20, 25, 0.7) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 120px 0 60px;
        }

        .hero-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text {
            color: #FFFFFF;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 3rem;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            max-width: 520px;
        }

        .hero-category-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 28px;
        }

        .hero-cat-tag {
            display: inline-block;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 20px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .hero-cat-tag:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.35);
            color: #FFFFFF;
            transform: translateY(-1px);
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.5);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-outline:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 2px;
        }

        .hero-data-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            color: #FFFFFF;
            backdrop-filter: blur(8px);
        }

        .hero-data-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .hero-data-item {
            text-align: center;
        }

        .hero-data-value {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: var(--accent-orange);
            line-height: 1;
        }

        .hero-data-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* Section Common */
        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.3;
            color: var(--text-dark);
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 12px auto 0;
            line-height: 1.7;
        }

        /* Metrics Dashboard */
        .metrics-section {
            background: var(--bg-dark);
            padding: 48px 0;
            position: relative;
            z-index: 3;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            text-align: center;
        }

        .metric-item {
            color: #FFFFFF;
            padding: 16px;
        }

        .metric-icon {
            width: 40px;
            height: 40px;
            margin: 0 auto 12px;
            color: var(--accent-teal);
            font-size: 2rem;
        }

        .metric-value {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: #FFFFFF;
            line-height: 1;
        }

        .metric-suffix {
            font-size: 1.2rem;
            color: var(--accent-orange);
            font-weight: 600;
        }

        .metric-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }

        /* Services Matrix */
        .services-section {
            background: var(--bg-white);
        }

        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--gap-grid);
        }

        .services-grid .service-card:nth-child(1) {
            grid-column: 1 / -1;
        }

        .services-grid .service-card:nth-child(2),
        .services-grid .service-card:nth-child(3) {
            grid-column: span 1;
        }

        .services-grid .service-card:nth-child(4),
        .services-grid .service-card:nth-child(5),
        .services-grid .service-card:nth-child(6) {
            grid-column: span 1;
        }

        .service-card {
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: var(--card-pad);
            transition: all var(--transition-fast);
            cursor: pointer;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: transparent;
            transition: background var(--transition-fast);
            border-radius: 0 2px 2px 0;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: #d0d4db;
        }

        .service-card:hover::before {
            background: var(--accent-orange);
        }

        .service-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.5rem;
            color: var(--accent-teal);
        }

        .service-card-body {
            flex: 1;
            min-width: 0;
        }

        .service-card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .service-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .service-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            transition: color var(--transition-fast);
        }

        .service-card-link:hover {
            color: var(--accent-orange);
        }

        .service-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-top: 8px;
        }

        /* Comparison Section */
        .comparison-section {
            background: var(--bg-light);
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
        }

        .comparison-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            position: relative;
        }

        .comparison-card.old {
            opacity: 0.7;
            border-color: #e5e5e5;
        }

        .comparison-card.new {
            border-color: var(--accent-teal);
            box-shadow: var(--shadow-md);
        }

        .comparison-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .comparison-card.old:hover {
            opacity: 0.85;
        }

        .comparison-label {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .comparison-card.old .comparison-label {
            background: #f0f0f0;
            color: #888;
        }

        .comparison-card.new .comparison-label {
            background: var(--accent-teal-light);
            color: var(--accent-teal);
        }

        .comparison-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .comparison-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-dark);
            padding: 6px 0;
        }

        .comparison-list .icon-check {
            color: #22c55e;
            font-weight: 700;
            flex-shrink: 0;
        }

        .comparison-list .icon-cross {
            color: #ef4444;
            font-weight: 700;
            flex-shrink: 0;
        }

        .comparison-highlight {
            margin-top: 16px;
            padding: 12px 16px;
            background: #FFF8F6;
            border-radius: var(--radius-sm);
            border-left: 3px solid var(--accent-orange);
            font-weight: 600;
            color: var(--accent-orange-dark);
            font-size: 0.9rem;
        }

        /* Deep Content A */
        .deep-content-a {
            background: var(--bg-white);
        }

        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-text h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .deep-content-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .deep-content-text .highlight-box {
            background: #FFF8F6;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin: 16px 0;
            border-left: 4px solid var(--accent-orange);
            font-weight: 500;
            color: #5a1a0a;
            line-height: 1.7;
        }

        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .deep-content-img img {
            width: 100%;
            height: auto;
            display: block;
        }

        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .topic-tag {
            padding: 6px 14px;
            background: var(--bg-light);
            border-radius: 16px;
            font-size: 0.85rem;
            color: var(--text-dark);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .topic-tag:hover {
            background: var(--accent-teal-light);
            border-color: var(--accent-teal);
            color: var(--accent-teal);
        }

        /* Brand Intro */
        .brand-intro-section {
            background: var(--bg-light);
            padding: 60px 0;
        }

        .brand-intro-card {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            padding: 40px;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .brand-intro-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--text-dark);
            margin-bottom: 16px;
        }

        .brand-intro-card p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            text-align: left;
        }

        .brand-intro-card .brand-name-highlight {
            font-weight: 700;
            color: var(--accent-orange);
        }

        /* News Center */
        .news-section {
            background: var(--bg-white);
        }

        .news-kpi-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 36px;
        }

        .news-kpi-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 16px;
            text-align: center;
            transition: all var(--transition-fast);
        }

        .news-kpi-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .news-kpi-value {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--accent-orange);
        }

        .news-kpi-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-top: 1px solid var(--border-light);
        }

        .news-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-fast);
            cursor: pointer;
            align-items: flex-start;
        }

        .news-item:nth-child(odd) {
            padding-right: 20px;
        }

        .news-item:nth-child(even) {
            padding-left: 20px;
            border-left: 1px solid var(--border-light);
        }

        .news-item:hover {
            background: #FAFBFC;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            padding-top: 2px;
            font-weight: 500;
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-title {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-summary {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }

        .news-read-more {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-teal);
            transition: color var(--transition-fast);
        }

        .news-read-more:hover {
            color: var(--accent-orange);
        }

        /* Deep Content B */
        .deep-content-b {
            background: var(--bg-light);
        }

        .deep-content-b-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .deep-b-text-block h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .deep-b-text-block p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .testimonial-bubbles {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .testimonial-bubble {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            position: relative;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .testimonial-bubble:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
            border-color: #d0d4db;
        }

        .testimonial-bubble::before {
            content: '';
            position: absolute;
            left: 20px;
            bottom: -8px;
            width: 16px;
            height: 16px;
            background: #FFFFFF;
            transform: rotate(45deg);
            border-right: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .testimonial-text {
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
        }

        .testimonial-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #E5E7EB;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-dark);
        }

        .testimonial-role {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--border-light);
        }

        .faq-item.open {
            background: #FFFFFF;
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            gap: 12px;
            user-select: none;
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            color: var(--accent-teal);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-orange);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
            color: #FFFFFF;
        }

        .cta-inner h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 460px;
            margin: 0 auto;
        }

        .cta-input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .cta-input:focus {
            border-color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.12);
            outline: none;
        }

        .btn-cta-submit {
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            font-size: 1rem;
        }

        .btn-cta-submit:hover {
            background: var(--accent-orange-dark);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.4);
        }

        .btn-cta-submit:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.5);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: #0a0e12;
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 8px;
        }

        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-col h4 {
            font-weight: 600;
            font-size: 0.9rem;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-teal);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--accent-teal);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-data-card {
                max-width: 400px;
            }
            .hero-title {
                font-size: 2.25rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .services-grid {
                grid-template-columns: 1fr 1fr;
            }
            .services-grid .service-card:nth-child(1) {
                grid-column: span 2;
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                max-width: 500px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .deep-content-b-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .news-item:nth-child(even) {
                padding-left: 0;
                border-left: none;
            }
            .news-item:nth-child(odd) {
                padding-right: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .news-kpi-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.75rem;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-category-strip {
                gap: 6px;
            }
            .hero-cat-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-value {
                font-size: 1.8rem;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .services-grid .service-card:nth-child(1) {
                grid-column: span 1;
            }
            .comparison-card {
                padding: 20px;
            }
            .cta-form {
                flex-direction: column;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-data-row {
                grid-template-columns: 1fr 1fr;
            }
            .hero-data-value {
                font-size: 1.8rem;
            }
            .mega-panel {
                display: none;
            }
            .deep-content-text h3 {
                font-size: 1.4rem;
            }
            .deep-b-text-block h3 {
                font-size: 1.4rem;
            }
            .brand-intro-card {
                padding: 24px;
            }
            .news-kpi-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-section {
                min-height: 65vh;
            }
            .hero-content {
                padding: 100px 0 40px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline {
                width: 100%;
                justify-content: center;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-value {
                font-size: 1.5rem;
            }
            .comparison-grid {
                gap: 16px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .hero-data-row {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hero-category-strip {
                gap: 4px;
            }
            .hero-cat-tag {
                padding: 5px 10px;
                font-size: 0.72rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .cta-inner h3 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 64px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .section-pad {
            padding: var(--section-pad-desktop) 0;
        }

        .section-pad-sm {
            padding: 50px 0;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--accent-orange);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            width: 560px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-smooth);
            pointer-events: none;
            z-index: 1002;
        }

        .mega-trigger-wrap:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
            cursor: pointer;
            background: #FAFBFC;
        }

        .mega-card:hover {
            background: #F0F2F5;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .mega-card-img {
            width: 100%;
            height: 90px;
            object-fit: cover;
            display: block;
        }

        .mega-card-info {
            padding: 10px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-card-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .mega-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            z-index: 1001;
            cursor: pointer;
            padding: 8px;
            background: none;
            border: none;
        }

        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
            display: block;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.88) 0%, rgba(15, 20, 25, 0.55) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-color: var(--bg-dark);
            padding: 60px 0;
            overflow: hidden;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            color: var(--text-white);
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 77, 46, 0.2);
            color: var(--accent-orange);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
            border: 1px solid rgba(255, 77, 46, 0.3);
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .hero-content h1 span {
            color: var(--accent-orange);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-outline-light:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .hero-data-panel {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .hero-data-panel h3 {
            font-size: 1rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }

        .hero-data-row {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-data-item {
            flex: 1;
            min-width: 80px;
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            padding: 16px 12px;
        }

        .hero-data-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-orange);
            font-family: var(--font-heading);
            line-height: 1;
        }

        .hero-data-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* Stats Dashboard */
        .stats-dashboard {
            background: var(--bg-dark);
            padding: 50px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            transition: all var(--transition-fast);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .stat-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            display: block;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-orange);
            font-family: var(--font-heading);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        /* Service Matrix */
        .section-title {
            font-family: var(--font-heading);
            font-size: 2.25rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .service-grid-asymmetric {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .service-card-large {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            gap: 24px;
            align-items: flex-start;
            grid-row: span 1;
        }

        .service-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-left: 3px solid var(--accent-orange);
        }

        .service-card-large .service-card-img {
            width: 140px;
            height: 140px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }

        .service-card-large .service-card-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .service-card-large .service-card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .service-card-link {
            color: var(--accent-teal);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }

        .service-card-link:hover {
            color: var(--accent-orange);
        }

        .service-card-compact {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .service-card-compact:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-left: 3px solid var(--accent-teal);
        }

        .service-card-compact .service-icon-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.4rem;
            color: var(--accent-teal);
        }

        .service-card-compact h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .service-card-compact p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        .service-grid-bottom {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            grid-column: 1 / -1;
        }

        /* Comparison Section */
        .comparison-bg {
            background: var(--bg-light);
        }

        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .comparison-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .comparison-card.dim {
            background: #F0F1F5;
            border-color: #D5D7DD;
            opacity: 0.85;
        }

        .comparison-card.highlight {
            border: 2px solid var(--accent-teal);
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .comparison-card.highlight::before {
            content: '推荐方案';
            position: absolute;
            top: -12px;
            right: 20px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 14px;
            letter-spacing: 0.03em;
        }

        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .comparison-list {
            list-style: none;
            padding: 0;
        }

        .comparison-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-dark);
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .icon-check {
            color: #10B981;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .icon-cross {
            color: #EF4444;
            font-weight: 700;
            font-size: 1.1rem;
        }

        /* Deep Content */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .deep-content-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .deep-content-text h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .deep-content-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 14px;
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .scenario-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .scenario-card .scenario-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.8rem;
            color: var(--accent-teal);
        }

        .scenario-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .scenario-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Process / Timeline */
        .process-bg {
            background: var(--bg-dark);
            color: #FFFFFF;
        }

        .process-bg .section-title {
            color: #FFFFFF;
        }

        .process-bg .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        .timeline-list {
            display: flex;
            gap: 0;
            position: relative;
            flex-wrap: wrap;
        }

        .timeline-item {
            flex: 1;
            min-width: 200px;
            text-align: center;
            position: relative;
            padding: 0 16px 30px;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 14px;
            height: 14px;
            background: var(--accent-orange);
            border-radius: 50%;
            z-index: 2;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 0;
            right: 0;
            height: 2px;
            background: rgba(255, 255, 255, 0.2);
            z-index: 1;
        }

        .timeline-item:first-child::before {
            left: 50%;
            right: 0;
        }

        .timeline-item:last-child::before {
            left: 0;
            right: 50%;
        }

        .timeline-step {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-orange);
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .timeline-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: #FFFFFF;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            gap: 12px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: #FAFBFC;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--accent-teal);
            font-weight: 700;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-icon {
            background: var(--accent-orange);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2229 100%);
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #FFFFFF;
            font-size: 1rem;
            transition: border-color var(--transition-fast);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .cta-input:focus {
            border-color: var(--accent-orange);
            outline: none;
        }

        .btn-cta {
            padding: 14px 32px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-cta:hover {
            background: var(--accent-orange-dark);
            box-shadow: 0 6px 24px rgba(255, 77, 46, 0.4);
            transform: translateY(-1px);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-orange);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--accent-orange);
        }

        /* Mobile Nav Overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-dark);
            z-index: 999;
            padding: 80px 20px 40px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: block;
        }

        .mobile-nav-overlay .mobile-nav-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-nav-overlay .mobile-nav-link {
            display: block;
            padding: 14px 18px;
            font-size: 1.1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .mobile-nav-overlay .mobile-nav-link:hover,
        .mobile-nav-overlay .mobile-nav-link.active {
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
        }

        .mobile-nav-overlay .mobile-nav-link.active {
            border-left: 3px solid var(--accent-orange);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-data-panel {
                max-width: 500px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid-asymmetric {
                grid-template-columns: 1fr;
            }
            .service-grid-bottom {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-pad {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
        }

        @media (max-width: 768px) {
            .main-nav .nav-list {
                display: none;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-section {
                min-height: 55vh;
                padding: 40px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .service-card-large {
                flex-direction: column;
                gap: 16px;
            }
            .service-card-large .service-card-img {
                width: 100%;
                height: 160px;
            }
            .service-grid-bottom {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .timeline-list {
                flex-direction: column;
                gap: 0;
            }
            .timeline-item {
                text-align: left;
                padding-left: 40px;
                padding-bottom: 24px;
                border-left: 2px solid rgba(255, 255, 255, 0.2);
            }
            .timeline-item::after {
                left: -8px;
                bottom: auto;
                top: 0;
                transform: none;
            }
            .timeline-item::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-form {
                flex-direction: column;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .comparison-card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-data-row {
                flex-direction: column;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 16px 8px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .deep-content-text h2 {
                font-size: 1.4rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 64px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--accent-orange);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            outline: 2px solid var(--accent-teal);
            outline-offset: 2px;
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            outline: 2px solid var(--accent-teal);
            outline-offset: 2px;
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(3, 200px);
            gap: 12px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-smooth);
            z-index: 999;
        }

        .mega-trigger-wrap:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .mega-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .mega-card-img {
            width: 100%;
            height: 100px;
            object-fit: cover;
            border-radius: var(--radius-sm) var(--radius-sm) 0 0;
        }

        .mega-card-info {
            padding: 10px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-card-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .mega-card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Page Hero - Flash Sale Style */
        .page-hero {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.9) 0%, rgba(15, 20, 25, 0.55) 60%, rgba(15, 20, 25, 0.8) 100%);
            z-index: 1;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
        }

        .flash-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #FFFFFF;
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
            margin-bottom: 16px;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 77, 46, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(255, 77, 46, 0);
            }
        }

        .flash-dot {
            width: 8px;
            height: 8px;
            background: #FFFFFF;
            border-radius: 50%;
            animation: blink-dot 1s ease-in-out infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-text-col h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .hero-text-col h1 .highlight {
            color: var(--accent-orange);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .hero-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--accent-teal);
            outline-offset: 3px;
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 500;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
        }

        .btn-outline-light:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }

        .btn-outline-light:focus-visible {
            outline: 3px solid var(--accent-teal);
            outline-offset: 3px;
        }

        .hero-card-col {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: blur(10px);
        }

        .countdown-row {
            display: flex;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .countdown-item {
            text-align: center;
            min-width: 56px;
        }

        .countdown-num {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--accent-orange);
            line-height: 1;
            display: block;
        }

        .countdown-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.6);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 4px;
        }

        .hero-headline-card {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 20px;
            border-left: 3px solid var(--accent-orange);
            margin-bottom: 16px;
        }

        .hero-headline-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-orange);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 6px;
        }

        .hero-headline-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1.4;
            margin-bottom: 6px;
        }

        .hero-headline-excerpt {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.5;
        }

        /* Section Common */
        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: #FFFFFF;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-teal);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        /* News Grid */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .news-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .news-card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .news-card:hover .news-card-img {
            transform: scale(1.04);
        }

        .news-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.04em;
            z-index: 2;
        }

        .news-card-body {
            padding: 18px var(--card-pad) 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-card-title {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            margin-top: auto;
        }

        .news-card-link:hover {
            color: var(--accent-orange);
            gap: 8px;
        }

        .news-card-link-icon {
            width: 14px;
            height: 14px;
            transition: transform var(--transition-fast);
        }

        .news-card-link:hover .news-card-link-icon {
            transform: translateX(3px);
        }

        /* Timeline Section */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
        }

        .timeline-list::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-light);
            border-radius: 1px;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            position: relative;
            align-items: flex-start;
        }

        .timeline-dot {
            width: 12px;
            height: 12px;
            background: var(--accent-teal);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 6px;
            position: relative;
            z-index: 1;
            border: 3px solid #FFFFFF;
            box-shadow: 0 0 0 3px var(--accent-teal-light);
            margin-left: 15px;
        }

        .timeline-content {
            flex: 1;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .timeline-content:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent-teal);
        }

        .timeline-time {
            font-size: 0.78rem;
            color: var(--accent-orange);
            font-weight: 600;
            margin-bottom: 4px;
            letter-spacing: 0.03em;
        }

        .timeline-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .timeline-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Deep Read Section */
        .deep-read-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .deep-read-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4 / 3;
        }

        .deep-read-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .deep-read-text h3 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .deep-read-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .section-dark .deep-read-text h3 {
            color: #FFFFFF;
        }

        .section-dark .deep-read-text p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            gap: 12px;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            color: var(--accent-teal);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-orange);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(255, 77, 46, 0.12) 0%, transparent 70%);
            z-index: 0;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .cta-input:focus {
            border-color: var(--accent-orange);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
            box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.15);
        }

        .btn-submit {
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-submit:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-submit:focus-visible {
            outline: 3px solid var(--accent-teal);
            outline-offset: 3px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 48px 0 28px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            font-size: 0.85rem;
        }

        .footer-col h4 {
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 12px;
            color: #FFFFFF;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-orange);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: var(--accent-orange);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-text-col h1 {
                font-size: 2.2rem;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-read-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .mega-panel {
                grid-template-columns: repeat(2, 180px);
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                z-index: 999;
                overflow-y: auto;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: var(--radius-md);
            }
            .hamburger {
                display: flex;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hero-text-col h1 {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .countdown-row {
                gap: 10px;
            }
            .countdown-num {
                font-size: 1.6rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-input {
                width: 100%;
            }
            .timeline-list::before {
                left: 14px;
            }
            .timeline-dot {
                margin-left: 9px;
            }
            .timeline-item {
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-text-col h1 {
                font-size: 1.5rem;
            }
            .hero-card-col {
                padding: 18px;
            }
            .countdown-num {
                font-size: 1.3rem;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .page-hero {
                min-height: 380px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .deep-read-text h3 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
        }

        p {
            margin: 0 0 1em 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: transparent;
        }

        .site-header.scrolled {
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
            flex-shrink: 0;
        }

        .site-header.scrolled .logo-link {
            text-shadow: none;
            color: #FFFFFF;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
        }

        .site-header.scrolled .nav-link {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
        }

        .site-header.scrolled .mega-trigger {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            min-width: 560px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
            z-index: 1002;
        }

        .mega-trigger-wrap:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            text-decoration: none;
            color: var(--text-dark);
        }

        .mega-card:hover {
            background: var(--bg-light);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 0;
        }

        .mega-card-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-dark);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .mega-card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* Hamburger */
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            gap: 5px;
            z-index: 1001;
            cursor: pointer;
            padding: 0;
            background: none;
            border: none;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        }

        .site-header.scrolled .hamburger-btn span {
            box-shadow: none;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-dark);
            z-index: 999;
            padding: 80px 24px 40px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu .nav-link {
            font-size: 1.1rem;
            padding: 14px 20px;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-md);
            text-shadow: none;
            display: block;
            width: 100%;
        }

        .mobile-menu .nav-link:hover,
        .mobile-menu .nav-link.active {
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.88) 0%, rgba(15, 20, 25, 0.55) 100%);
            z-index: 1;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            padding: 120px 0 80px;
            max-width: 720px;
        }

        .page-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .page-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .page-hero h1 span {
            color: var(--accent-orange);
        }

        .page-hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent-orange);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: #FFFFFF;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-1px);
        }

        .btn-teal {
            background: var(--accent-teal);
            color: #FFFFFF;
        }

        .btn-teal:hover {
            background: #008c99;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 167, 181, 0.35);
        }

        /* Section */
        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-teal);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
            color: var(--text-dark);
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 40px;
        }

        .section-dark .section-subtitle {
            color: var(--text-light-muted);
        }

        /* Tech Grid */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .tech-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: var(--card-pad);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .tech-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-light);
        }

        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--accent-teal);
            transition: height var(--transition-smooth);
            border-radius: 0 0 3px 0;
        }

        .tech-card:hover::before {
            height: 100%;
        }

        .tech-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--accent-teal);
            flex-shrink: 0;
        }

        .tech-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .tech-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .tech-card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 12px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-teal);
            transition: gap var(--transition-fast);
        }

        .tech-card-link:hover {
            gap: 8px;
            color: #008c99;
        }

        .tech-card-link svg {
            width: 14px;
            height: 14px;
        }

        /* Deep Content */
        .deep-content-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .deep-content-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .deep-content-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-dark);
        }

        .section-dark .deep-content-text h3 {
            color: #FFFFFF;
        }

        .deep-content-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .section-dark .deep-content-text p {
            color: var(--text-light-muted);
        }

        .deep-content-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }

        .deep-content-list li {
            padding: 8px 0 8px 24px;
            position: relative;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .section-dark .deep-content-list li {
            color: var(--text-light-muted);
        }

        .deep-content-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 15px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-teal);
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--gap-grid);
        }

        .scenario-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--accent-teal);
        }

        .scenario-card-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--accent-orange);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

        .scenario-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .scenario-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* Process Steps */
        .process-steps {
            display: flex;
            gap: 0;
            position: relative;
            counter-reset: step;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: var(--border-light);
            z-index: 0;
        }

        .section-dark .process-steps::before {
            background: var(--border-dark);
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            counter-increment: step;
        }

        .process-step-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 3px solid var(--accent-teal);
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-teal);
            transition: all var(--transition-fast);
            position: relative;
        }

        .section-dark .process-step-circle {
            background: var(--bg-dark);
            border-color: var(--accent-teal);
            color: var(--accent-teal);
        }

        .process-step:hover .process-step-circle {
            background: var(--accent-teal);
            color: #FFFFFF;
            box-shadow: 0 8px 24px rgba(0, 167, 181, 0.3);
            transform: scale(1.05);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-dark);
        }

        .section-dark .process-step h4 {
            color: #FFFFFF;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        .section-dark .process-step p {
            color: var(--text-light-muted);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: #FFFFFF;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-item.active {
            border-color: var(--accent-teal);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-teal);
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            background: var(--accent-teal);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: var(--bg-dark);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 50%, rgba(255, 77, 46, 0.08) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 240px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .cta-form input:focus {
            border-color: var(--accent-orange);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.15);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 50px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 30px;
            border-bottom: 1px solid var(--border-dark);
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 0.875rem;
            color: var(--text-light-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 0.875rem;
            color: var(--text-light-muted);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 20px;
            font-size: 0.8rem;
            color: var(--text-light-muted);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: var(--text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: #FFFFFF;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .tech-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .deep-content-row {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .deep-content-img {
                order: -1;
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 24px;
            }
            .process-steps::before {
                display: none;
            }
            .process-step {
                flex: 0 0 calc(50% - 12px);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .nav-list {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .page-hero h1 {
                font-size: 2.25rem;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .tech-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-step {
                flex: 0 0 100%;
            }
            .page-hero {
                min-height: 55vh;
            }
            .page-hero h1 {
                font-size: 1.9rem;
            }
            .page-hero-desc {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .mega-panel {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .deep-content-text h3 {
                font-size: 1.3rem;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .page-hero-content {
                padding: 100px 0 60px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 64px;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--accent-orange);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 420px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            pointer-events: none;
            z-index: 999;
        }

        .mega-trigger-wrap:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
            background: #FAFAFA;
        }

        .mega-card:hover {
            background: #F0F0F0;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .mega-card-img {
            width: 100%;
            height: 100px;
            object-fit: cover;
            display: block;
        }

        .mega-card-info {
            padding: 10px 12px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-card-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .mega-card-date {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            min-height: 70vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 60px 0;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.9) 0%, rgba(15, 20, 25, 0.55) 55%, rgba(15, 20, 25, 0.3) 100%);
            z-index: 1;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .hero-content-wrap {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 40px;
            align-items: center;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            width: fit-content;
            letter-spacing: 0.03em;
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 3rem;
            line-height: 1.2;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            margin: 0;
        }

        .hero-title .highlight {
            color: var(--accent-orange);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-kpi-row {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .hero-kpi {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-kpi-num {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: #FFFFFF;
            letter-spacing: -0.3px;
        }

        .hero-kpi-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.02em;
        }

        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: #FFFFFF;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .hero-right {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-right-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            transform: rotate(-1deg);
            width: 100%;
            max-width: 560px;
        }

        .hero-right-img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/10;
            object-fit: cover;
            display: block;
        }

        .hero-floating-card {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 12px;
            z-index: 3;
            transform: rotate(0deg);
        }

        .hero-floating-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-teal);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .hero-floating-text {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }

        .hero-floating-text strong {
            font-size: 0.9rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        .hero-floating-text span {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Section Common */
        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: #FFFFFF;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-orange);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.3;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            margin: 0 0 12px;
        }

        .section-dark .section-title {
            color: #FFFFFF;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .section-dark .section-desc {
            color: var(--text-light-muted);
        }

        /* Stats Bar */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-dark);
        }

        .stat-item {
            text-align: center;
            padding: 32px 20px;
            border-right: 1px solid var(--border-dark);
            transition: background var(--transition-fast);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .stat-icon {
            font-size: 1.8rem;
            margin-bottom: 8px;
            display: block;
        }

        .stat-number {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            line-height: 1;
        }

        .stat-number .suffix {
            font-size: 1.4rem;
            color: var(--accent-orange);
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-light-muted);
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        /* Service Cards Grid */
        .service-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .service-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: var(--card-pad);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 0;
            background: var(--accent-orange);
            transition: height 0.3s ease;
            border-radius: 0 0 3px 0;
        }

        .service-card:hover::before {
            height: 100%;
        }

        .service-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-teal);
            flex-shrink: 0;
        }

        .service-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-dark);
            margin: 0;
            letter-spacing: -0.2px;
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }

        .service-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
            margin-top: auto;
        }

        .service-card-link:hover {
            color: var(--accent-orange);
        }

        .service-card-link svg {
            width: 14px;
            height: 14px;
            transition: transform var(--transition-fast);
        }

        .service-card-link:hover svg {
            transform: translateX(3px);
        }

        /* Process Timeline */
        .process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .process-timeline::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: var(--border-light);
            z-index: 0;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .process-step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 3px solid var(--accent-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--accent-teal);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .process-step:hover .process-step-num {
            background: var(--accent-teal);
            color: #FFFFFF;
            box-shadow: 0 8px 24px rgba(0, 167, 181, 0.3);
            transform: scale(1.05);
        }

        .process-step h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            margin: 0;
        }

        .process-step p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
            max-width: 200px;
        }

        /* Scenario Cards */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .scenario-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }

        .scenario-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .scenario-card-body {
            padding: 20px var(--card-pad);
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex-grow: 1;
        }

        .scenario-card-body h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            margin: 0;
        }

        .scenario-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        .scenario-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-teal);
            background: var(--accent-teal-light);
            padding: 4px 10px;
            border-radius: 50px;
            width: fit-content;
            letter-spacing: 0.03em;
        }

        /* Comparison Section */
        .comparison-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .comparison-col {
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all var(--transition-fast);
        }

        .comparison-col.old {
            background: #F0F1F3;
            border: 1px solid #D1D3D8;
        }

        .comparison-col.new {
            background: #FFFFFF;
            border: 2px solid var(--accent-teal);
            box-shadow: var(--shadow-md);
        }

        .comparison-col:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .comparison-col h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            margin: 0 0 20px;
            color: var(--text-dark);
        }

        .comparison-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.5;
        }

        .comparison-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            margin-top: 2px;
        }

        .comparison-icon.check {
            background: #D4EDDA;
            color: #28A745;
        }

        .comparison-icon.cross {
            background: #F8D7DA;
            color: #DC3545;
        }

        .comparison-highlight {
            margin-top: 16px;
            padding: 12px 16px;
            background: var(--accent-teal-light);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--accent-teal);
            text-align: center;
        }

        /* Deep Content */
        .deep-content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-img {
            width: 100%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .deep-content-img img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
            display: block;
        }

        .deep-content-text h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--text-dark);
            margin: 0 0 16px;
            letter-spacing: -0.3px;
        }

        .deep-content-text p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 0 12px;
        }

        .deep-content-text p:last-child {
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item.open {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            text-align: left;
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: 12px;
            background: none;
            border: none;
            font-family: inherit;
        }

        .faq-question:hover {
            background: #FAFAFA;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent-teal);
            transition: all var(--transition-fast);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            background: var(--accent-orange);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -30%;
            width: 80%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255, 77, 46, 0.08) 0%, transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: #FFFFFF;
            letter-spacing: -0.3px;
            margin: 0;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            line-height: 1.6;
            margin: 0;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            width: 100%;
            max-width: 480px;
        }

        .cta-form input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .cta-form input:focus {
            border-color: var(--accent-orange);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
        }

        .cta-form .btn-primary {
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: #FFFFFF;
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-light-muted);
            line-height: 1.6;
            margin: 0;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.9rem;
            color: #FFFFFF;
            margin: 0 0 4px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            font-size: 0.82rem;
            color: var(--text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-orange);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--text-light-muted);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: var(--text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--accent-orange);
        }

        /* Mobile Nav */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-dark);
            z-index: 999;
            flex-direction: column;
            padding: 80px 24px 24px;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu .nav-link {
            font-size: 1.05rem;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            display: block;
            width: 100%;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-left {
                align-items: center;
            }
            .hero-subtitle {
                max-width: 100%;
            }
            .hero-kpi-row {
                justify-content: center;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-right-img-wrap {
                max-width: 100%;
                transform: none;
            }
            .hero-floating-card {
                left: 10px;
                bottom: -10px;
            }
            .service-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .process-timeline::before {
                display: none;
            }
            .comparison-wrap {
                grid-template-columns: 1fr;
            }
            .deep-content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border-right: 1px solid var(--border-dark);
                border-bottom: 1px solid var(--border-dark);
            }
            .stat-item:nth-child(2n) {
                border-right: none;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-section {
                min-height: 60vh;
                padding: 40px 0;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-kpi-num {
                font-size: 1.5rem;
            }
            .service-cards-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .process-timeline {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .comparison-col {
                padding: 20px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .deep-content-text h3 {
                font-size: 1.3rem;
            }
            .hero-floating-card {
                position: relative;
                left: auto;
                bottom: auto;
                margin-top: 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-kpi-row {
                gap: 12px;
            }
            .hero-kpi-num {
                font-size: 1.2rem;
            }
            .stats-bar {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-dark);
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 12px 20px;
                font-size: 0.85rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-orange-light: #FFF0EC;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --accent-teal-dark: #008A96;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-full: 9999px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
            font-size: inherit;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .section-pad {
            padding: var(--section-pad-desktop) 0;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: transparent;
            height: 64px;
        }

        .site-header.scrolled {
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
            flex-shrink: 0;
        }

        .site-header.scrolled .logo-link {
            text-shadow: none;
            color: #FFFFFF;
        }

        .logo-link:hover {
            color: var(--accent-orange);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
            position: relative;
        }

        .site-header.scrolled .nav-link {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            outline: none;
        }

        .nav-link:focus-visible {
            box-shadow: 0 0 0 2px var(--accent-orange);
            outline: none;
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
            white-space: nowrap;
        }

        .site-header.scrolled .mega-trigger {
            text-shadow: none;
            color: rgba(255, 255, 255, 0.85);
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
            outline: none;
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(3, 220px);
            gap: 12px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-smooth);
            z-index: 999;
            pointer-events: none;
        }

        .mega-trigger-wrap:hover .mega-panel,
        .mega-trigger:focus-within+.mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
            background: var(--bg-light);
            text-decoration: none;
            color: var(--text-dark);
        }

        .mega-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            background: #FFFFFF;
        }

        .mega-card-img {
            width: 100%;
            height: 100px;
            object-fit: cover;
            display: block;
        }

        .mega-card-info {
            padding: 10px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .mega-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Hamburger */
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            z-index: 1001;
            cursor: pointer;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 0;
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 1px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-dark);
            z-index: 999;
            padding: 80px 20px 40px;
            overflow-y: auto;
            flex-direction: column;
            gap: 8px;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay .nav-link {
            font-size: 1.1rem;
            padding: 14px 20px;
            color: rgba(255, 255, 255, 0.9);
            text-shadow: none;
            border-radius: var(--radius-md);
            display: block;
            text-align: left;
        }

        .mobile-nav-overlay .nav-link:hover,
        .mobile-nav-overlay .nav-link.active {
            background: rgba(255, 255, 255, 0.1);
            color: #FFFFFF;
        }

        .mobile-nav-overlay .nav-link.active {
            border-left: 3px solid var(--accent-orange);
        }

        .mobile-nav-overlay .mega-card-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-top: 8px;
            padding: 0 10px;
        }

        .mobile-nav-overlay .mega-card {
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-nav-overlay .mega-card-info {
            color: #FFFFFF;
        }

        .mobile-nav-overlay .mega-card-title {
            color: #FFFFFF;
        }

        .mobile-nav-overlay .mega-card-date {
            color: var(--text-light-muted);
        }

        /* Hero Section */
        .page-hero {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            background-position: center 30%;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.88) 0%, rgba(15, 20, 25, 0.55) 60%, rgba(15, 20, 25, 0.7) 100%);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            color: #FFFFFF;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 77, 46, 0.2);
            color: var(--accent-orange);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            border: 1px solid rgba(255, 77, 46, 0.3);
        }

        .hero-content h1 {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            color: #FFFFFF;
        }

        .hero-content h1 .highlight {
            color: var(--accent-orange);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 500px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.02em;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--accent-orange);
            color: #FFFFFF;
            border: 2px solid var(--accent-orange);
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            border-color: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: #FFFFFF;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
            transform: translateY(-1px);
        }

        .btn-teal {
            background: var(--accent-teal);
            color: #FFFFFF;
            border: 2px solid var(--accent-teal);
        }

        .btn-teal:hover {
            background: var(--accent-teal-dark);
            border-color: var(--accent-teal-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(0, 167, 181, 0.3);
        }

        .hero-stats-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .hero-stat-item {
            text-align: center;
        }

        .hero-stat-number {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1;
            margin-bottom: 6px;
        }

        .hero-stat-number .unit {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--accent-orange);
            margin-left: 2px;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.03em;
        }

        /* Section Common */
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 700px;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-desc {
            margin: 0 auto;
        }

        /* Case Cards Grid */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }

        .case-card-img-wrap {
            position: relative;
            overflow: hidden;
            height: 200px;
        }

        .case-card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .case-card:hover .case-card-img {
            transform: scale(1.04);
        }

        .case-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--accent-orange);
            color: #FFFFFF;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            z-index: 2;
        }

        .case-card-body {
            padding: 20px var(--card-pad) var(--card-pad);
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-card-title {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .case-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .case-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .case-card-link {
            color: var(--accent-teal);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-fast);
            margin-top: auto;
        }

        .case-card-link:hover {
            color: var(--accent-teal-dark);
            gap: 8px;
        }

        .case-card-link svg {
            width: 14px;
            height: 14px;
        }

        /* Stats Banner */
        .stats-banner {
            background: var(--bg-dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 77, 46, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-card {
            text-align: center;
            padding: 20px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .stat-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-orange);
            font-size: 1.5rem;
        }

        .stat-value {
            font-family: var(--font-heading);
            font-size: 2.5rem;
            font-weight: 700;
            color: #FFFFFF;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-value .plus {
            color: var(--accent-orange);
            font-size: 1.5rem;
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            letter-spacing: 0.03em;
        }

        /* Process Timeline */
        .process-section {
            background: var(--bg-light);
        }

        .timeline {
            position: relative;
            padding-left: 40px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-light);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding-left: 32px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -40px;
            top: 4px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #FFFFFF;
            border: 3px solid var(--accent-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-teal);
            z-index: 2;
            box-shadow: var(--shadow-sm);
        }

        .timeline-item.completed .timeline-dot {
            background: var(--accent-teal);
            color: #FFFFFF;
            border-color: var(--accent-teal);
        }

        .timeline-content {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .timeline-content:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }

        .timeline-content h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Detail Case Section */
        .detail-case {
            background: #FFFFFF;
        }

        .detail-case-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .detail-case-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .detail-case-image img {
            width: 100%;
            height: auto;
            display: block;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .detail-case-image .img-badge {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 20, 25, 0.85);
            color: #FFFFFF;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
        }

        .detail-case-text h3 {
            font-family: var(--font-heading);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .detail-case-text p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .detail-case-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 20px;
        }

        .highlight-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 12px;
            background: var(--accent-teal-light);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            color: var(--text-dark);
            line-height: 1.5;
        }

        .highlight-item .check-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--accent-teal);
            margin-top: 1px;
        }

        /* Testimonials */
        .testimonials-section {
            background: var(--bg-dark);
            color: #FFFFFF;
        }

        .testimonials-section .section-title {
            color: #FFFFFF;
        }

        .testimonials-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .testimonial-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-fast);
        }

        .testimonial-card:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateY(-2px);
        }

        .testimonial-quote {
            font-size: 0.95rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
            font-style: italic;
            position: relative;
            padding-left: 20px;
            border-left: 3px solid var(--accent-orange);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent-teal);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            color: #FFFFFF;
            flex-shrink: 0;
        }

        .testimonial-info .author-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: #FFFFFF;
        }

        .testimonial-info .author-role {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-light);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: #d0d5dd;
        }

        .faq-item.active {
            border-color: var(--accent-teal);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            background: transparent;
            border: none;
            transition: all var(--transition-fast);
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--accent-teal);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-smooth);
            font-size: 1.2rem;
            color: var(--text-muted);
            font-weight: 700;
        }

        .faq-item.active .faq-icon {
            background: var(--accent-teal);
            color: #FFFFFF;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 167, 181, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 240px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }

        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .cta-input:focus {
            border-color: var(--accent-orange);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 3px rgba(255, 77, 46, 0.15);
        }

        .btn-cta {
            padding: 14px 28px;
            background: var(--accent-orange);
            color: #FFFFFF;
            border: 2px solid var(--accent-orange);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .btn-cta:hover {
            background: var(--accent-orange-dark);
            border-color: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        /* Footer */
        .site-footer {
            background: #0A0E12;
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 28px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.55);
            max-width: 280px;
        }

        .footer-col h4 {
            font-weight: 600;
            font-size: 0.9rem;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 5px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-orange);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--accent-orange);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-link {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .mega-trigger {
                padding: 8px 10px;
                font-size: 0.82rem;
            }
            .mega-panel {
                grid-template-columns: repeat(2, 200px);
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .page-hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-stats-card {
                grid-template-columns: repeat(4, 1fr);
            }
            .hero-content h1 {
                font-size: 2.5rem;
            }
            .detail-case-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .section-pad {
                padding: var(--section-pad-mobile) 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .page-hero {
                min-height: 55vh;
            }
            .page-hero .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-stats-card {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 20px;
            }
            .hero-stat-number {
                font-size: 1.8rem;
            }
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-card-img-wrap {
                height: 180px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-value {
                font-size: 1.8rem;
            }
            .timeline {
                padding-left: 28px;
            }
            .timeline::before {
                left: 12px;
            }
            .timeline-dot {
                left: -28px;
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
            .timeline-item {
                padding-left: 20px;
            }
            .detail-case-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .detail-case-highlights {
                grid-template-columns: 1fr;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-stats-card {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 16px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.9rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .case-card-img-wrap {
                height: 160px;
            }
            .case-card-body {
                padding: 14px 16px 16px;
            }
            .testimonial-card {
                padding: 20px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category7 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }

        /* Mega Menu Trigger */
        .mega-trigger-wrap {
            position: relative;
        }

        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }

        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            min-width: 560px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            z-index: 999;
        }

        .mega-trigger-wrap:hover .mega-panel,
        .mega-trigger:focus-visible+.mega-panel,
        .mega-panel:hover {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            color: var(--text-dark);
            text-decoration: none;
        }

        .mega-card:hover {
            background: var(--bg-light);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mega-card-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .mega-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* Mobile Menu Toggle */
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1001;
            cursor: pointer;
            background: none;
            border: none;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* Sections */
        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent-teal);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 720px;
        }

        .section-dark .section-subtitle {
            color: var(--text-light-muted);
        }

        /* Hero - About */
        .hero-about {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
            padding-top: 80px;
            padding-bottom: 60px;
        }

        .hero-about::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.88) 0%, rgba(15, 20, 25, 0.65) 100%);
            z-index: 1;
        }

        .hero-about-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-about-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 28px;
        }

        .hero-icon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 600px;
            width: 100%;
        }

        .hero-icon-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 16px 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .hero-icon-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .hero-icon-svg {
            width: 36px;
            height: 36px;
            color: var(--accent-teal);
            flex-shrink: 0;
        }

        .hero-icon-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
            white-space: nowrap;
        }

        .hero-about-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 3rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .hero-about-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            line-height: 1.7;
        }

        .hero-status-bar {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            justify-content: center;
            padding: 16px 28px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-status-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .hero-status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-teal);
            animation: pulse-dot 2s infinite;
        }

        .hero-status-dot.orange {
            background: var(--accent-orange);
            animation-delay: 0.5s;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 167, 181, 0.4);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(0, 167, 181, 0);
            }
        }

        /* Brand Intro */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            letter-spacing: -0.3px;
        }

        .brand-intro-text p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .brand-intro-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* Stats Bar */
        .stats-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: var(--accent-orange);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* Timeline */
        .timeline-wrap {
            position: relative;
            padding-left: 40px;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--border-light);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
            padding: 20px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .timeline-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -32px;
            top: 24px;
            width: 12px;
            height: 12px;
            background: var(--accent-teal);
            border-radius: 50%;
            border: 3px solid #FFFFFF;
            box-shadow: 0 0 0 4px var(--accent-teal-light);
        }

        .timeline-year {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-teal);
            margin-bottom: 6px;
        }

        .timeline-title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .timeline-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Values Grid */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }

        .value-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: var(--card-pad);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            text-align: center;
        }

        .value-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .value-card-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: var(--accent-teal-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-teal);
            flex-shrink: 0;
        }

        .value-card-icon svg {
            width: 28px;
            height: 28px;
        }

        .value-card h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .value-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Team Section */
        .team-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .team-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .team-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .team-text h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .team-text p {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 12px;
        }

        .team-highlights {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }

        .team-tag {
            padding: 6px 14px;
            background: var(--accent-teal-light);
            color: var(--accent-teal);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: var(--accent-teal);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: var(--bg-light);
        }

        .faq-icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
            color: var(--text-muted);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-teal);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            background: var(--bg-dark);
            text-align: center;
            padding: 60px 0;
        }

        .cta-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: #FFFFFF;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-subtitle {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--accent-orange);
            color: #FFFFFF;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-orange-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 77, 46, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.5);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: var(--accent-teal);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent-teal);
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            background: rgba(0, 167, 181, 0.08);
            transform: translateY(-2px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid rgba(0, 167, 181, 0.5);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 10px;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.6;
            max-width: 280px;
        }

        .footer-col h4 {
            font-weight: 600;
            color: #FFFFFF;
            font-size: 0.95rem;
            margin-bottom: 12px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: #FFFFFF;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: rgba(255, 255, 255, 0.75);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .brand-intro-image {
                order: -1;
                max-width: 500px;
                margin: 0 auto;
            }
            .team-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .team-image {
                max-width: 500px;
                margin: 0 auto;
            }
            .values-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-icon-grid {
                grid-template-columns: repeat(2, 1fr);
                max-width: 320px;
            }
            .hero-about-title {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-dark);
                flex-direction: column;
                padding: 16px;
                gap: 2px;
                box-shadow: var(--shadow-xl);
                z-index: 999;
            }
            .nav-list.mobile-open {
                display: flex;
            }
            .nav-link {
                padding: 14px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .mobile-menu-toggle {
                display: flex;
            }
            .mega-trigger-wrap {
                display: none;
            }
            .hero-about {
                min-height: 55vh;
                padding-top: 70px;
            }
            .hero-about-title {
                font-size: 1.8rem;
            }
            .hero-about-subtitle {
                font-size: 1rem;
            }
            .hero-icon-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                max-width: 280px;
            }
            .hero-icon-item {
                padding: 12px 8px;
            }
            .hero-icon-svg {
                width: 28px;
                height: 28px;
            }
            .hero-icon-label {
                font-size: 0.72rem;
            }
            .hero-status-bar {
                gap: 16px;
                padding: 12px 16px;
                flex-wrap: wrap;
            }
            .hero-status-item {
                font-size: 0.8rem;
            }
            .brand-intro-text h2 {
                font-size: 1.5rem;
            }
            .brand-intro-text p {
                font-size: 0.95rem;
            }
            .timeline-wrap {
                padding-left: 28px;
            }
            .timeline-wrap::before {
                left: 10px;
            }
            .timeline-item::before {
                left: -24px;
                width: 10px;
                height: 10px;
            }
            .values-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .team-text h2 {
                font-size: 1.5rem;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-about-title {
                font-size: 1.5rem;
            }
            .hero-icon-grid {
                gap: 8px;
                max-width: 240px;
            }
            .hero-icon-item {
                padding: 10px 6px;
            }
            .hero-icon-svg {
                width: 24px;
                height: 24px;
            }
            .hero-icon-label {
                font-size: 0.68rem;
            }
            .hero-status-bar {
                gap: 10px;
                padding: 10px 12px;
            }
            .hero-status-item {
                font-size: 0.72rem;
            }
            .stats-bar-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.8rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category6 */
:root {
            --bg-dark: #0F1419;
            --bg-light: #F5F6FA;
            --bg-white: #FFFFFF;
            --text-dark: #1A1A1A;
            --text-white: #FFFFFF;
            --text-muted: #6B7280;
            --text-light-muted: #9CA3AF;
            --accent-orange: #FF4D2E;
            --accent-orange-dark: #E03D20;
            --accent-teal: #00A7B5;
            --accent-teal-light: #E6F7F9;
            --border-light: #E0E3E8;
            --border-dark: rgba(255, 255, 255, 0.08);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s ease;
            --container-max: 1280px;
            --section-pad-desktop: 80px;
            --section-pad-mobile: 60px;
            --card-pad: 24px;
            --gap-grid: 24px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background-color: var(--bg-white);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .section {
            padding: var(--section-pad-desktop) 0;
        }

        .section-dark {
            background-color: var(--bg-dark);
            color: var(--text-white);
        }

        .section-light {
            background-color: var(--bg-light);
        }

        .section-white {
            background-color: var(--bg-white);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-orange);
            margin-bottom: 8px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.25;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            margin-bottom: 16px;
        }

        .section-dark .section-title {
            color: var(--text-white);
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 680px;
        }

        .section-dark .section-subtitle {
            color: var(--text-light-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--accent-orange);
            color: #FFFFFF;
            border: 2px solid var(--accent-orange);
        }
        .btn-primary:hover {
            background: var(--accent-orange-dark);
            border-color: var(--accent-orange-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            background: transparent;
            color: var(--accent-teal);
            border: 2px solid var(--accent-teal);
        }
        .btn-outline:hover {
            background: var(--accent-teal-light);
            border-color: var(--accent-teal);
            transform: translateY(-1px);
        }
        .btn-outline:focus-visible {
            outline: 3px solid rgba(0, 167, 181, 0.4);
            outline-offset: 2px;
        }

        .btn-white {
            background: #FFFFFF;
            color: var(--text-dark);
            border: 2px solid #FFFFFF;
        }
        .btn-white:hover {
            background: #f0f0f0;
            border-color: #f0f0f0;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 20px;
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            background: var(--bg-dark);
            box-shadow: var(--shadow-lg);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-link {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            white-space: nowrap;
            z-index: 1001;
            transition: color var(--transition-fast);
        }
        .logo-link:hover {
            color: var(--accent-orange);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .nav-link:hover,
        .nav-link:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-link.active {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--accent-orange);
            border-radius: 1px;
        }
        .mega-trigger-wrap {
            position: relative;
        }
        .mega-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .mega-trigger:hover,
        .mega-trigger:focus-visible {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.1);
        }
        .mega-trigger-icon {
            width: 16px;
            height: 16px;
            transition: transform var(--transition-fast);
        }
        .mega-trigger-wrap:hover .mega-trigger-icon {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xl);
            padding: 16px;
            display: flex;
            gap: 12px;
            min-width: 480px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.25s ease;
            z-index: 999;
        }
        .mega-trigger-wrap:hover .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-card {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: var(--text-dark);
        }
        .mega-card:hover {
            background: var(--bg-light);
            transform: translateY(-2px);
        }
        .mega-card-img {
            width: 100%;
            height: 90px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }
        .mega-card-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .mega-card-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            z-index: 1001;
            padding: 8px;
            background: none;
            border: none;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #FFFFFF;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 1024px) {
            .nav-list {
                gap: 0;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .mega-trigger {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .mega-panel {
                min-width: 360px;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 85%;
                max-width: 400px;
                height: 100vh;
                background: var(--bg-dark);
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 24px 40px;
                gap: 8px;
                transition: right var(--transition-smooth);
                box-shadow: var(--shadow-xl);
                overflow-y: auto;
                z-index: 1000;
            }
            .main-nav.open {
                right: 0;
            }
            .nav-list {
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .nav-link {
                width: 100%;
                padding: 14px 16px;
                font-size: 1rem;
                border-radius: var(--radius-md);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                border-left: 3px solid var(--accent-orange);
            }
            .mega-trigger-wrap {
                width: 100%;
            }
            .mega-trigger {
                width: 100%;
                padding: 14px 16px;
                font-size: 1rem;
                justify-content: space-between;
            }
            .mega-panel {
                position: static;
                flex-direction: column;
                min-width: auto;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                background: rgba(255, 255, 255, 0.05);
                margin-top: 4px;
                padding: 12px;
                display: none;
            }
            .mega-trigger-wrap:hover .mega-panel,
            .mega-panel.show {
                display: flex;
            }
            .mega-card {
                flex-direction: row;
                align-items: center;
            }
            .mega-card-img {
                width: 60px;
                height: 45px;
                flex-shrink: 0;
            }
            .mega-card-title {
                color: #FFFFFF;
            }
            .mega-card-date {
                color: var(--text-light-muted);
            }
        }

        /* Hero - Flash Sale Style */
        .hero-flash {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding-top: 80px;
            padding-bottom: 60px;
            overflow: hidden;
        }
        .hero-flash::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 20, 25, 0.9) 0%, rgba(15, 20, 25, 0.7) 40%, rgba(15, 20, 25, 0.55) 100%);
            z-index: 1;
        }
        .hero-flash-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }
        .hero-flash-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #FFFFFF;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            animation: pulse-badge 2s ease-in-out infinite;
            margin-bottom: 20px;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 77, 46, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(255, 77, 46, 0);
            }
        }
        .hero-flash-dot {
            width: 8px;
            height: 8px;
            background: #FFFFFF;
            border-radius: 50%;
            animation: blink-dot 1s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero-flash-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 3rem;
            line-height: 1.2;
            color: #FFFFFF;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .hero-flash-title span {
            color: var(--accent-orange);
        }
        .hero-flash-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero-flash-countdown {
            display: flex;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .countdown-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            text-align: center;
            min-width: 70px;
            backdrop-filter: blur(4px);
        }
        .countdown-num {
            display: block;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            color: #FFFFFF;
            line-height: 1;
        }
        .countdown-label {
            display: block;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }
        .hero-flash-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-xl);
            position: relative;
            overflow: hidden;
        }
        .hero-flash-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent-orange);
        }
        .hero-flash-card-tag {
            display: inline-block;
            background: #FFF0ED;
            color: var(--accent-orange);
            font-weight: 700;
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .hero-flash-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
        }
        .hero-flash-card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .hero-flash-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 16px;
        }
        .hero-flash-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .hero-flash-card-meta strong {
            color: var(--accent-orange);
            font-size: 1.1rem;
        }

        @media (max-width: 768px) {
            .hero-flash {
                min-height: auto;
                padding-top: 100px;
                padding-bottom: 40px;
            }
            .hero-flash-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-flash-title {
                font-size: 2rem;
            }
            .hero-flash-desc {
                font-size: 1rem;
            }
            .countdown-item {
                min-width: 55px;
                padding: 10px 12px;
            }
            .countdown-num {
                font-size: 1.5rem;
            }
            .hero-flash-card {
                padding: 20px;
            }
            .hero-flash-card-img {
                height: 120px;
            }
        }

        /* Stats Dashboard */
        .stats-dashboard {
            background: var(--bg-dark);
            padding: 48px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item {
            padding: 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dark);
            transition: all var(--transition-fast);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .stat-icon {
            font-size: 2rem;
            margin-bottom: 8px;
            display: block;
        }
        .stat-number {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.5rem;
            color: #FFFFFF;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-number .accent {
            color: var(--accent-orange);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-light-muted);
            letter-spacing: 0.03em;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .stat-item {
                padding: 14px;
            }
        }

        /* Resource Cards Grid */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--gap-grid);
        }
        .resource-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .resource-card-img-wrap {
            position: relative;
            overflow: hidden;
        }
        .resource-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }
        .resource-card:hover .resource-card-img {
            transform: scale(1.04);
        }
        .resource-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent-orange);
            color: #FFFFFF;
            padding: 4px 10px;
            border-radius: 50px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.03em;
        }
        .resource-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .resource-card-type {
            font-size: 0.75rem;
            color: var(--accent-teal);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }
        .resource-card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .resource-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 16px;
            flex: 1;
        }
        .resource-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .resource-card-link {
            color: var(--accent-teal);
            font-weight: 600;
            font-size: 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-fast);
        }
        .resource-card-link:hover {
            color: var(--accent-orange);
        }

        @media (max-width: 1024px) {
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .resource-card-img {
                height: 160px;
            }
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 28px 16px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent-teal);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .process-step h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* Report Section */
        .report-featured {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .report-featured-img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            object-fit: cover;
            height: 380px;
        }
        .report-featured-info h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--text-dark);
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .report-featured-info p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .report-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }
        .report-list-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .report-list-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent-teal);
            transform: translateX(4px);
        }
        .report-list-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .report-list-info {
            flex: 1;
        }
        .report-list-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
        }
        .report-list-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        @media (max-width: 768px) {
            .report-featured {
                grid-template-columns: 1fr;
            }
            .report-featured-img {
                height: 240px;
            }
        }

        /* Tools Grid */
        .tools-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }
        .tool-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .tool-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .tool-card.large {
            grid-row: span 2;
        }
        .tool-card-icon {
            font-size: 2.2rem;
            margin-bottom: 4px;
        }
        .tool-card h4 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-dark);
        }
        .tool-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            flex: 1;
        }
        .tool-card .btn {
            align-self: flex-start;
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .tools-grid {
                grid-template-columns: 1fr 1fr;
            }
            .tool-card.large {
                grid-column: span 2;
                grid-row: auto;
            }
        }
        @media (max-width: 520px) {
            .tools-grid {
                grid-template-columns: 1fr;
            }
            .tool-card.large {
                grid-column: span 1;
            }
        }

        /* Partner Logos */
        .partner-scroll {
            display: flex;
            gap: 32px;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            padding: 20px 0;
        }
        .partner-item {
            padding: 16px 24px;
            background: #FFFFFF;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
            letter-spacing: 0.03em;
        }
        .partner-item:hover {
            color: var(--text-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--accent-teal);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            gap: 12px;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-teal-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-teal);
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-icon {
            background: var(--accent-orange);
            color: #FFFFFF;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-dark);
            padding: 60px 0;
            text-align: center;
        }
        .cta-section .section-title {
            color: #FFFFFF;
            margin-bottom: 8px;
        }
        .cta-section .section-subtitle {
            color: var(--text-light-muted);
            margin: 0 auto 32px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 240px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #FFFFFF;
            font-size: 0.95rem;
            transition: border-color var(--transition-fast);
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .cta-form input:focus {
            border-color: var(--accent-orange);
            background: rgba(255, 255, 255, 0.1);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-dark);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-light-muted);
            line-height: 1.6;
        }
        .footer-col h4 {
            font-weight: 700;
            font-size: 0.9rem;
            color: #FFFFFF;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-orange);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border-dark);
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: var(--accent-orange);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-pad-mobile) 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }