/* roulang page: index */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-page);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 100%);
            padding: 60px 0 70px;
            overflow: hidden;
            clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
            margin-bottom: -30px;
        }

        .hero-bg-pattern {
            position: absolute;
            top: 0;
            right: 0;
            width: 55%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .hero-title .highlight {
            color: var(--brand-primary);
            position: relative;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }

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

        .btn-primary-hero {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-hero:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 6px 24px rgba(26, 86, 219, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline-hero {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-hero:hover {
            background: var(--brand-primary-light);
            border-color: var(--brand-primary-dark);
            color: var(--brand-primary-dark);
        }

        .hero-data-points {
            display: flex;
            gap: 28px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

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

        .hero-data-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1;
        }

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

        .hero-compare-cards {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-compare-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            box-shadow: var(--shadow-md);
            border: 2px solid transparent;
            transition: all var(--transition-normal);
            cursor: default;
            position: relative;
        }

        .hero-compare-card.recommended {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-lg);
            background: #fff;
            transform: scale(1.03);
            z-index: 3;
        }

        .hero-compare-card.recommended::before {
            content: '推荐选择';
            position: absolute;
            top: -13px;
            right: 20px;
            background: var(--brand-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.35);
        }

        .hero-compare-card .card-header-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 8px;
        }

        .hero-compare-card .card-title-sm {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
        }

        .hero-compare-card .card-check {
            color: var(--brand-success);
            font-size: 1.1rem;
        }

        .hero-compare-card .card-desc-sm {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        .hero-compare-card .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 50px;
            font-weight: 600;
            background: #f1f5f9;
            color: var(--text-secondary);
        }

        .hero-compare-card.recommended .card-tag {
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        /* ========== SECTION COMMONS ========== */
        .section-padding {
            padding: 60px 0;
        }

        .section-padding-sm {
            padding: 40px 0;
        }

        .section-padding-lg {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--brand-primary);
            margin-bottom: 10px;
            background: var(--brand-primary-light);
            padding: 5px 14px;
            border-radius: 50px;
        }

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

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 650px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== DATA DASHBOARD ========== */
        .data-dashboard {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 32px 28px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 0;
        }

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

        .data-dash-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .data-dash-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .data-dash-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .data-dash-change {
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .data-dash-change.up {
            color: var(--brand-success);
        }

        .data-dash-change.down {
            color: var(--brand-danger);
        }

        /* ========== COMPARE TABLE ========== */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            background: var(--bg-white);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .compare-table thead th {
            background: var(--brand-primary);
            color: #fff;
            padding: 16px 18px;
            font-weight: 600;
            font-size: 0.9rem;
            text-align: center;
            white-space: nowrap;
        }

        .compare-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-lg) 0 0 0;
        }

        .compare-table thead th:last-child {
            border-radius: 0 var(--radius-lg) 0 0;
        }

        .compare-table thead th.highlight-col {
            background: var(--brand-accent);
            color: #1e293b;
        }

        .compare-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .compare-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .compare-table tbody tr:hover {
            background: #f8fafc;
        }

        .compare-table .check-icon {
            color: var(--brand-success);
            font-size: 1rem;
        }

        .compare-table .cross-icon {
            color: #cbd5e1;
            font-size: 1rem;
        }

        .compare-table .star-icon {
            color: var(--brand-accent);
        }

        /* ========== RECOMMENDED TIER ========== */
        .tier-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .tier-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 24px;
            box-shadow: var(--shadow-md);
            border: 2px solid transparent;
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
        }

        .tier-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .tier-card.featured {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-xl);
            background: #fff;
            transform: scale(1.04);
            z-index: 2;
        }

        .tier-card.featured:hover {
            transform: scale(1.04) translateY(-4px);
        }

        .tier-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 5px 18px;
            border-radius: 50px;
            white-space: nowrap;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
        }

        .tier-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .tier-price {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--brand-primary);
            margin-bottom: 4px;
        }

        .tier-price span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .tier-desc {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .tier-features {
            list-style: none;
            text-align: left;
            margin-bottom: 20px;
        }

        .tier-features li {
            padding: 7px 0;
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tier-features li i {
            color: var(--brand-success);
            font-size: 0.85rem;
        }

        .btn-tier {
            display: inline-block;
            width: 100%;
            padding: 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-align: center;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            cursor: pointer;
        }

        .btn-tier:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
        }

        .btn-tier.outline {
            background: transparent;
            border: 2px solid var(--brand-primary);
            color: var(--brand-primary);
        }

        .btn-tier.outline:hover {
            background: var(--brand-primary-light);
        }

        /* ========== SERVICE MATRIX ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid var(--border-light);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

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

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

        .service-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .service-info p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== VERTICAL FEED ========== */
        .vertical-feed {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .vertical-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
            border: 1px solid var(--border-light);
        }

        .vertical-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

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

        .vertical-card-body {
            padding: 16px;
        }

        .vertical-card-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .vertical-card-tag {
            font-size: 0.7rem;
            color: var(--brand-primary);
            font-weight: 600;
            background: var(--brand-primary-light);
            padding: 3px 10px;
            border-radius: 50px;
            display: inline-block;
            margin-bottom: 8px;
        }

        .vertical-card-cta {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-primary);
            margin-top: 8px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== BEGINNER GUIDE ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-card {
            text-align: center;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 18px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            position: relative;
        }

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

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

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

        .step-card p {
            font-size: 0.82rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== DISCOUNT LADDER ========== */
        .ladder-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 700px;
            margin: 0 auto;
        }

        .ladder-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 18px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .ladder-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
        }

        .ladder-item.highlight-ladder {
            border-color: var(--brand-accent);
            background: #fffdf5;
            box-shadow: var(--shadow-md);
        }

        .ladder-tier-badge {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.8rem;
            padding: 8px 14px;
            border-radius: 50px;
            white-space: nowrap;
            min-width: 70px;
            text-align: center;
        }

        .ladder-item.highlight-ladder .ladder-tier-badge {
            background: var(--brand-accent);
            color: #1e293b;
        }

        .ladder-info {
            flex: 1;
        }

        .ladder-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 2px;
        }

        .ladder-info p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        .ladder-cta {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--brand-primary);
            white-space: nowrap;
            padding: 8px 16px;
            border-radius: 50px;
            background: var(--brand-primary-light);
            transition: all var(--transition-fast);
        }

        .ladder-cta:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        /* ========== NEWS LIST ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 30px;
        }

        .news-list-col {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
        }

        .news-date-badge {
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 6px 12px;
            border-radius: 50px;
            white-space: nowrap;
            text-align: center;
            min-width: 70px;
            flex-shrink: 0;
        }

        .news-content h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .news-content p {
            font-size: 0.82rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        .news-readmore {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--brand-primary);
            margin-top: 6px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
        }

        .news-sidebar {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            height: fit-content;
            position: sticky;
            top: 90px;
        }

        .news-sidebar h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--brand-primary-light);
        }

        .news-sidebar-list {
            list-style: none;
        }

        .news-sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-secondary);
            cursor: pointer;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }

        .news-sidebar-list li:hover {
            color: var(--brand-primary);
        }

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

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            border: 1px solid var(--border-light);
        }

        .brand-intro-text h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .brand-intro-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .brand-intro-img {
            width: 100%;
            height: 260px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        /* ========== COMPARISON ========== */
        .compare-vs {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: center;
        }

        .compare-vs-col {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .compare-vs-col.old {
            border-left: 4px solid #e2e8f0;
        }

        .compare-vs-col.new {
            border-left: 4px solid var(--brand-success);
            box-shadow: var(--shadow-md);
        }

        .compare-vs-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .compare-vs-col ul {
            list-style: none;
        }

        .compare-vs-col ul li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-vs-divider {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-white);
            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 {
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: #f8fafc;
        }

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-normal);
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary) 0%, #1e40af 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-white {
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: #fff;
            color: var(--brand-primary) !important;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
            background: #f0f4ff;
        }

        /* ========== USER REVIEWS ========== */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

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

        .review-stars {
            color: var(--brand-accent);
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .review-author {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .review-date {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        /* ========== SECURITY SECTION ========== */
        .security-icons {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .security-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .security-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .security-icon {
            font-size: 2rem;
            color: var(--brand-success);
            margin-bottom: 10px;
        }

        .security-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .security-item p {
            font-size: 0.8rem;
            color: var(--text-light);
            margin: 0;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: #94a3b8;
            line-height: 1.6;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            padding: 5px 0;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            gap: 14px;
            font-size: 0.82rem;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-compare-cards {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .hero-compare-card {
                flex: 1;
                min-width: 200px;
            }
            .data-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }
            .tier-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .tier-card.featured {
                grid-column: span 2;
                transform: scale(1);
            }
            .tier-card.featured:hover {
                transform: scale(1) translateY(-4px);
            }
            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .vertical-feed {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
            }
            .compare-vs {
                grid-template-columns: 1fr;
            }
            .compare-vs-divider {
                transform: rotate(90deg);
                margin: 0 auto;
            }
            .brand-intro-block {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-icons {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-tabs-row {
                gap: 2px;
                padding: 4px;
            }
            .nav-tab-chip {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                justify-content: flex-start;
                border-radius: 0;
                background: transparent;
                padding: 0;
                gap: 6px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-tabs-row::-webkit-scrollbar {
                display: none;
            }
            .nav-tab-chip {
                flex-shrink: 0;
                font-size: 0.78rem;
                padding: 8px 14px;
                border-radius: 6px;
                background: var(--bg-page);
            }
            .nav-tab-chip.active {
                border-radius: 6px;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 8px 16px;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-section {
                clip-path: polygon(0 0, 100% 0, 100% 94%, 0 100%);
                padding: 40px 0 50px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .data-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
                padding: 20px 14px;
            }
            .data-dash-value {
                font-size: 1.6rem;
            }
            .tier-cards {
                grid-template-columns: 1fr;
            }
            .tier-card.featured {
                grid-column: span 1;
                transform: scale(1);
            }
            .tier-card.featured:hover {
                transform: scale(1) translateY(-4px);
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .vertical-feed {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .steps-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
            .security-icons {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .compare-vs-divider {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
            .hero-compare-card.recommended {
                transform: scale(1);
            }
            .hero-compare-card.recommended::before {
                font-size: 0.7rem;
                top: -10px;
                right: 10px;
                padding: 3px 10px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-hero,
            .btn-outline-hero {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .data-dashboard {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .vertical-feed {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .security-icons {
                grid-template-columns: 1fr;
            }
            .ladder-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .brand-intro-block {
                padding: 24px 16px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .hero-data-points {
                gap: 16px;
            }
            .hero-data-num {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
            display: inline-block;
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1a3a5c 40%, #1a56db 100%);
            padding: 80px 0 90px;
            overflow: hidden;
            min-height: 500px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-page), transparent);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }

        .hero-text {
            flex: 1;
            min-width: 300px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.2);
            color: var(--brand-accent);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }

        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-text h1 .highlight {
            color: var(--brand-accent);
            position: relative;
        }

        .hero-text .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 540px;
        }

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

        .btn-hero-primary {
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--brand-accent);
            color: #1e293b !important;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
            display: inline-block;
        }

        .btn-hero-primary:hover {
            background: var(--brand-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
            color: #1e293b !important;
        }

        .btn-hero-outline {
            padding: 13px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
            display: inline-block;
        }

        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff !important;
        }

        .hero-visual {
            flex: 1;
            min-width: 280px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            text-align: center;
            max-width: 320px;
            width: 100%;
        }

        .hero-stat-card .stat-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }

        .hero-stat-card .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            letter-spacing: 0.3px;
        }

        .hero-stat-card .stat-sub {
            font-size: 0.8rem;
            color: var(--brand-accent);
            margin-top: 4px;
            font-weight: 500;
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 70px 0;
        }

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

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

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .section-header .section-subtitle {
            font-size: 1rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .section-tag {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 10px;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

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

        .metric-card:hover::before {
            opacity: 1;
        }

        .metric-card .metric-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        .metric-card .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 6px;
        }

        .metric-card .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .metric-card .metric-change {
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .metric-change.up {
            color: var(--brand-success);
        }

        .metric-change.down {
            color: var(--brand-danger);
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .service-card .service-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            flex-shrink: 0;
        }

        .service-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

        .service-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 16px;
        }

        .service-card .service-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }

        .service-card .service-link:hover {
            gap: 10px;
            color: var(--brand-primary-dark);
        }

        .service-card .card-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16 / 10;
            background: #f1f5f9;
        }

        .service-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .service-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            padding: 4px;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table thead th {
            background: var(--brand-primary);
            color: #fff;
            padding: 15px 18px;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
            white-space: nowrap;
        }

        .comparison-table thead th:first-child {
            border-radius: var(--radius-sm) 0 0 0;
            text-align: left;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .comparison-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:hover {
            background: var(--brand-primary-light);
        }

        .comparison-table .badge-yes {
            display: inline-block;
            background: #d1fae5;
            color: #065f46;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .comparison-table .badge-partial {
            display: inline-block;
            background: #fef3c7;
            color: #92400e;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .comparison-table .highlight-col {
            background: rgba(26, 86, 219, 0.04);
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            width: 100%;
            border: none;
            text-align: left;
            font-family: var(--font-body);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-fast);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--brand-primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1240a3 100%);
            border-radius: var(--radius-2xl);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
            margin: 0 20px;
            box-shadow: var(--shadow-xl);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 0;
        }

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

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

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

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

        .cta-input-group input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: 50px;
            border: 2px solid transparent;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .cta-input-group input:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2);
        }

        .cta-input-group .btn-cta-submit {
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: var(--brand-accent);
            color: #1e293b;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
        }

        .cta-input-group .btn-cta-submit:hover {
            background: var(--brand-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
        }

        /* ========== LOTTERY RESULT CARDS ========== */
        .result-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .result-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

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

        .result-card .result-date-badge {
            flex-shrink: 0;
            background: var(--brand-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            text-align: center;
            min-width: 60px;
        }

        .result-card .result-date-badge .day {
            font-size: 1.5rem;
            font-weight: 800;
            line-height: 1;
        }

        .result-card .result-date-badge .month {
            font-size: 0.75rem;
            opacity: 0.85;
            margin-top: 2px;
        }

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

        .result-card .result-numbers {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .result-card .ball-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-danger);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .result-card .ball-number.blue {
            background: var(--brand-primary);
        }

        .result-card .result-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== TREND SECTION ========== */
        .trend-visual-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            text-align: center;
        }

        .trend-visual-card img {
            border-radius: var(--radius-md);
            margin: 0 auto;
        }

        .trend-visual-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-top: 16px;
            color: var(--text-primary);
        }

        .trend-visual-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 50px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
            font-family: var(--font-heading);
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.6;
            color: #94a3b8;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            gap: 12px;
            font-size: 0.8rem;
            color: #64748b;
        }

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

        .footer-bottom-links a {
            color: #94a3b8;
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links span {
            color: #64748b;
            font-size: 0.8rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .result-cards-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-content {
                gap: 30px;
            }
            .nav-tabs-row {
                gap: 2px;
                padding: 4px 4px;
            }
            .nav-tab-chip {
                padding: 7px 13px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .service-matrix-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .result-cards-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-section {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .hero-content {
                flex-direction: column;
                text-align: center;
            }
            .hero-text .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-btns {
                justify-content: center;
            }
            .hero-stat-card {
                max-width: 240px;
            }
            .hero-stat-card .stat-number {
                font-size: 2.5rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .cta-section {
                padding: 36px 20px;
                margin: 0 12px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 0;
                gap: 10px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                justify-content: center;
                border-radius: 30px;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
            }
            .nav-tab-chip {
                flex-shrink: 0;
                font-size: 0.78rem;
                padding: 7px 12px;
            }
            .header-cta-btn {
                font-size: 0.8rem;
                padding: 8px 16px;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
            }
            .cta-input-group {
                flex-direction: column;
            }
            .cta-input-group input {
                min-width: auto;
            }
            .result-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .result-card .result-numbers {
                justify-content: center;
            }
            .nav-tabs-row {
                border-radius: 20px;
                padding: 3px;
                gap: 1px;
            }
            .nav-tab-chip {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }

        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(170deg, #e8f0fe 0%, #f0f4fb 30%, #f8fafc 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--brand-primary);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 620px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-search-wrap {
            max-width: 580px;
            margin: 0 auto 28px;
            position: relative;
        }

        .hero-search-input {
            width: 100%;
            padding: 16px 56px 16px 22px;
            border-radius: 50px;
            border: 2px solid var(--border-medium);
            background: var(--bg-white);
            font-size: 1rem;
            color: var(--text-primary);
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-md);
            outline: none;
        }

        .hero-search-input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1), var(--shadow-lg);
        }

        .hero-search-input::placeholder {
            color: var(--text-muted);
        }

        .hero-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            font-size: 1.1rem;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-search-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
        }

        .hero-tags-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 8px;
        }

        .hero-tag-chip {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            background: var(--bg-white);
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            white-space: nowrap;
            cursor: pointer;
        }

        .hero-tag-chip:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .hero-tag-chip.hot {
            background: #fef3c7;
            border-color: var(--brand-accent);
            color: var(--brand-accent-dark);
            font-weight: 600;
        }

        /* ========== SECTION COMMON ========== */
        .section-block {
            padding: 70px 0;
        }

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

        .section-block.bg-dark-block {
            background: var(--bg-dark);
            color: #e2e8f0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--brand-primary);
            margin-bottom: 10px;
        }

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

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
            max-width: 650px;
        }

        .bg-dark-block .section-title {
            color: #f1f5f9;
        }

        .bg-dark-block .section-subtitle {
            color: #cbd5e1;
        }

        .bg-dark-block .section-label {
            color: #60a5fa;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--brand-primary);
            border-radius: 0 0 4px 4px;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .metric-card:hover::before {
            opacity: 1;
        }

        .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .metric-change {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            margin-top: 8px;
        }

        .metric-change.up {
            background: #d1fae5;
            color: #059669;
        }

        .metric-change.down {
            background: #fee2e2;
            color: #dc2626;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-5px);
            border-color: transparent;
        }

        .service-card-img {
            width: 100%;
            height: 180px;
            border-radius: var(--radius-md);
            overflow: hidden;
            object-fit: cover;
            background: #e2e8f0;
        }

        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            letter-spacing: -0.2px;
        }

        .service-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex-grow: 1;
        }

        .service-card .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--brand-primary);
            font-size: 0.9rem;
            transition: gap var(--transition-fast);
        }

        .service-card .service-link:hover {
            gap: 10px;
            color: var(--brand-primary-dark);
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-wrapper {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
        }

        .comparison-table th {
            background: #f1f5f9;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            text-align: left;
            border-bottom: 2px solid var(--border-medium);
        }

        .comparison-table th:first-child {
            border-radius: 0;
        }

        .comparison-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.93rem;
            color: var(--text-secondary);
            vertical-align: middle;
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tr:hover td {
            background: #f8fafc;
        }

        .comparison-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .comparison-badge.best {
            background: #d1fae5;
            color: #059669;
        }

        .comparison-badge.good {
            background: #e8f0fe;
            color: #1a56db;
        }

        .comparison-badge.avg {
            background: #fef3c7;
            color: #b45309;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .deep-content-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }

        .deep-content-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
            font-size: 0.98rem;
        }

        .deep-content-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            height: 360px;
        }

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

        /* ========== BRAND INTRO ========== */
        .brand-intro-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .brand-intro-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .brand-intro-card p {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.98rem;
            text-align: left;
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .news-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
            transform: translateY(-2px);
        }

        .news-date {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .news-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
        }

        .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 600;
            color: var(--brand-primary);
            font-size: 0.88rem;
            transition: gap var(--transition-fast);
            align-self: flex-start;
        }

        .news-readmore:hover {
            gap: 8px;
            color: var(--brand-primary-dark);
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            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%;
            padding: 18px 22px;
            background: none;
            border: none;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question i {
            transition: transform var(--transition-normal);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a56db 0%, #1240a3 50%, #0f3d8e 100%);
            padding: 60px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -70px;
            left: -50px;
            width: 320px;
            height: 320px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-inner p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            line-height: 1.6;
        }

        .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-cta-white {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: #fff;
            color: var(--brand-primary) !important;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
            background: #f8fafc;
        }

        .btn-cta-outline {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
        }

        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-3px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: #94a3b8;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: #64748b;
        }

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

        .footer-bottom-links a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links span {
            color: #64748b;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }

            .deep-content-block {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .deep-content-image {
                height: 280px;
            }

            .news-list {
                grid-template-columns: 1fr 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .nav-tabs-row {
                gap: 2px;
                padding: 3px 4px;
            }

            .nav-tab-chip {
                padding: 7px 13px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-section {
                padding: 50px 0 45px;
            }

            .section-block {
                padding: 45px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-card {
                padding: 20px 16px;
            }

            .metric-value {
                font-size: 1.7rem;
            }

            .service-matrix {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .comparison-table th,
            .comparison-table td {
                padding: 10px 12px;
                font-size: 0.82rem;
            }

            .news-list {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-bottom-links {
                justify-content: center;
            }

            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 0;
                gap: 10px;
            }

            .nav-tabs-row {
                order: 3;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                justify-content: flex-start;
                border-radius: 30px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }

            .nav-tabs-row::-webkit-scrollbar {
                display: none;
            }

            .nav-tab-chip {
                flex-shrink: 0;
                padding: 8px 14px;
                font-size: 0.82rem;
            }

            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .hero-tags-row {
                gap: 6px;
            }

            .hero-tag-chip {
                padding: 6px 13px;
                font-size: 0.8rem;
            }

            .deep-content-image {
                height: 220px;
            }

            .brand-intro-card {
                padding: 24px 20px;
            }

            .cta-inner h2 {
                font-size: 1.5rem;
            }

            .btn-cta-white,
            .btn-cta-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }

            .hero-subtitle {
                font-size: 0.88rem;
            }

            .hero-search-input {
                padding: 14px 48px 14px 16px;
                font-size: 0.9rem;
            }

            .hero-search-btn {
                width: 38px;
                height: 38px;
                right: 4px;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .comparison-wrapper {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            .comparison-table {
                min-width: 550px;
            }

            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }

            .btn-cta-white,
            .btn-cta-outline {
                width: 100%;
                max-width: 280px;
                text-align: center;
            }

            .deep-content-block {
                gap: 20px;
            }

            .deep-content-image {
                height: 200px;
            }

            .nav-tab-chip {
                padding: 6px 11px;
                font-size: 0.75rem;
            }

            .logo-link {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
            display: inline-block;
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* Mobile nav scroll */
        .nav-scroll-wrapper {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
            padding: 0 4px;
        }

        .nav-scroll-wrapper::-webkit-scrollbar {
            display: none;
        }

        /* ========== HERO ========== */
        .hero-basketball {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
            padding: 60px 0;
        }

        .hero-basketball .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.35;
            z-index: 0;
        }

        .hero-basketball .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.7) 40%, rgba(26, 86, 219, 0.25) 100%);
            z-index: 1;
        }

        .hero-basketball .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-badge-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            letter-spacing: 0.3px;
        }

        .hero-badge-chip .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-accent);
            animation: pulse-dot 1.8s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7);
            }
            50% {
                box-shadow: 0 0 0 10px rgba(245, 158, 11, 0);
            }
        }

        .hero-basketball .hero-title {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

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

        .hero-basketball .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

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

        .btn-hero-primary {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--brand-accent);
            color: #1e293b !important;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
            letter-spacing: 0.3px;
            display: inline-block;
        }

        .btn-hero-primary:hover {
            background: #fbbf24;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(245, 158, 11, 0.5);
        }

        .btn-hero-outline {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            display: inline-block;
        }

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

        .hero-stats-mini {
            display: flex;
            gap: 28px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            text-align: left;
        }

        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            line-height: 1;
        }

        .hero-stat-item .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 70px 0;
        }

        .section-padding-lg {
            padding: 90px 0;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--brand-primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 10px;
            background: var(--brand-primary-light);
            padding: 5px 14px;
            border-radius: 50px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

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

        /* ========== METRICS DASHBOARD ========== */
        .metrics-dashboard {
            background: var(--bg-white);
            border-radius: var(--radius-2xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-lg);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -60px;
            position: relative;
            z-index: 5;
            border: 1px solid var(--border-light);
        }

        .metric-card-dash {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-lg);
            background: var(--bg-page);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .metric-card-dash:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
            transform: translateY(-3px);
        }

        .metric-card-dash .metric-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
        }

        .metric-icon.blue {
            background: #e8f0fe;
            color: #1a56db;
        }
        .metric-icon.green {
            background: #d1fae5;
            color: #10b981;
        }
        .metric-icon.amber {
            background: #fef3c7;
            color: #f59e0b;
        }
        .metric-icon.purple {
            background: #ede9fe;
            color: #7c3aed;
        }

        .metric-card-dash .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1;
        }

        .metric-card-dash .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 6px;
            font-weight: 500;
        }

        .metric-card-dash .metric-trend {
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .metric-trend.up {
            color: #10b981;
        }
        .metric-trend.down {
            color: #ef4444;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card-lg {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .service-card-lg:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .service-card-lg .card-icon-box {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        .service-card-lg h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .service-card-lg p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        .service-card-lg .card-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 16px;
        }

        .card-tag-sm {
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            background: #f1f5f9;
            color: var(--text-light);
            letter-spacing: 0.2px;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-section {
            background: var(--bg-white);
            border-radius: var(--radius-2xl);
            padding: 48px 36px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
        }

        .comparison-table-wrap {
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
        }

        .comparison-table thead th {
            background: #f8fafc;
            padding: 16px 18px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            text-align: center;
            border-bottom: 2px solid var(--border-medium);
            letter-spacing: 0.3px;
        }

        .comparison-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius-sm) 0 0 0;
        }

        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius-sm) 0 0;
        }

        .comparison-table tbody td {
            padding: 15px 18px;
            text-align: center;
            font-size: 0.93rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            vertical-align: middle;
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-primary);
        }

        .comparison-table tbody tr:hover td {
            background: #f8fafc;
        }

        .comparison-table .check-icon {
            color: #10b981;
            font-size: 1.1rem;
        }

        .comparison-table .dash-icon {
            color: #cbd5e1;
            font-size: 1.1rem;
        }

        .comparison-table .highlight-col {
            background: #e8f0fe;
            border-radius: 4px;
        }

        .comparison-table tbody tr:last-child td:first-child {
            border-radius: 0 0 0 var(--radius-sm);
        }

        .comparison-table tbody tr:last-child td:last-child {
            border-radius: 0 0 var(--radius-sm) 0;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: var(--bg-white);
            border-radius: var(--radius-2xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .deep-content-block h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .deep-content-block p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .deep-content-block .highlight-box {
            background: var(--brand-primary-light);
            border-left: 4px solid var(--brand-primary);
            padding: 18px 22px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 20px 0;
            font-weight: 500;
            color: var(--text-primary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }

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

        .faq-question {
            width: 100%;
            padding: 20px 24px;
            text-align: left;
            background: transparent;
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-light);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--brand-primary);
            color: #fff;
            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: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA FORM SECTION ========== */
        .cta-form-section {
            background: var(--bg-dark);
            border-radius: var(--radius-2xl);
            padding: 56px 48px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-xl);
        }

        .cta-form-section .cta-bg-pattern {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(26, 86, 219, 0.2) 0%, transparent 60%);
            z-index: 0;
        }

        .cta-form-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .cta-form-left h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .cta-form-left p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .cta-form-right {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-lg);
        }

        .cta-form-right .form-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .cta-form-right .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-medium);
            padding: 12px 16px;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            background: #f8fafc;
        }

        .cta-form-right .form-control:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
            background: #fff;
        }

        .btn-submit-cta {
            width: 100%;
            padding: 14px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            margin-top: 8px;
            cursor: pointer;
        }

        .btn-submit-cta:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: var(--bg-white);
            border-radius: var(--radius-2xl);
            padding: 44px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            text-align: center;
        }

        .brand-intro-block h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .brand-intro-block p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 800px;
            margin: 0 auto;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #e2e8f0;
            padding: 50px 0 30px;
            margin-top: 0;
        }

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

        .footer-brand h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94a3b8;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: #94a3b8;
        }

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

        .footer-bottom-links a {
            color: #94a3b8;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links span {
            color: #64748b;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-basketball .hero-title {
                font-size: 2.3rem;
            }
            .metrics-dashboard {
                grid-template-columns: repeat(2, 1fr);
                margin-top: -40px;
                padding: 28px 20px;
            }
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-form-content {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .comparison-section {
                padding: 32px 20px;
            }
            .deep-content-block {
                padding: 32px 24px;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 12px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                border-radius: 30px;
                padding: 4px;
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                gap: 2px;
            }
            .nav-tab-chip {
                padding: 7px 14px;
                font-size: 0.8rem;
                flex-shrink: 0;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            .hero-basketball {
                min-height: 440px;
                padding: 40px 0;
            }
            .hero-basketball .hero-title {
                font-size: 1.8rem;
            }
            .hero-basketball .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-stats-mini {
                gap: 16px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.5rem;
            }
            .metrics-dashboard {
                grid-template-columns: 1fr 1fr;
                margin-top: -30px;
                padding: 20px 14px;
                gap: 12px;
            }
            .metric-card-dash .metric-value {
                font-size: 1.6rem;
            }
            .service-matrix {
                grid-template-columns: 1fr;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-lg {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .comparison-section {
                padding: 20px 12px;
                border-radius: var(--radius-lg);
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 8px;
                font-size: 0.78rem;
            }
            .cta-form-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-form-left h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .deep-content-block {
                padding: 24px 16px;
                border-radius: var(--radius-lg);
            }
            .brand-intro-block {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-basketball .hero-title {
                font-size: 1.5rem;
            }
            .hero-basketball .hero-subtitle {
                font-size: 0.85rem;
            }
            .hero-stats-mini {
                gap: 10px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.2rem;
            }
            .hero-stat-item .stat-label {
                font-size: 0.7rem;
            }
            .metrics-dashboard {
                grid-template-columns: 1fr;
                padding: 16px 10px;
                gap: 8px;
            }
            .metric-card-dash {
                padding: 14px 10px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 8px 6px;
                font-size: 0.7rem;
            }
            .cta-form-right {
                padding: 20px 14px;
            }
            .nav-tab-chip {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .logo-link {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category5 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            color: var(--text-primary);
            line-height: 1.3;
            margin-top: 0;
        }

        p {
            margin-top: 0;
            color: var(--text-secondary);
        }

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

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
            flex-shrink: 0;
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            color: var(--brand-primary);
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 60%, #fef9f0 100%);
            position: relative;
            overflow: hidden;
            padding: 70px 0 80px;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-text-area {
            padding-right: 20px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 7px 16px;
            border-radius: 50px;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }

        .hero-title .highlight {
            color: var(--brand-primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(26, 86, 219, 0.12);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-form-inline {
            display: flex;
            gap: 12px;
            max-width: 460px;
            flex-wrap: wrap;
        }

        .hero-input {
            flex: 1;
            min-width: 200px;
            padding: 14px 18px;
            border: 2px solid var(--border-light);
            border-radius: 50px;
            font-size: 0.95rem;
            background: var(--bg-white);
            transition: all var(--transition-fast);
            outline: none;
            color: var(--text-primary);
        }

        .hero-input:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.08);
        }

        .hero-input::placeholder {
            color: var(--text-muted);
        }

        .hero-submit-btn {
            padding: 14px 28px;
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            white-space: nowrap;
        }

        .hero-submit-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-2px);
        }

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

        .hero-visual-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-light);
            width: 100%;
            max-width: 420px;
            position: relative;
        }

        .hero-visual-card .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .hero-visual-card .data-row:last-child {
            border-bottom: none;
        }

        .hero-visual-card .data-label {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .hero-visual-card .data-value {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .hero-visual-card .data-value.up {
            color: var(--brand-success);
        }

        .hero-visual-card .data-value.down {
            color: var(--brand-danger);
        }

        .hero-visual-card .data-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: #fef3c7;
            color: var(--brand-accent-dark);
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 70px 0;
        }

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

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

        .section-header h2 {
            font-size: 1.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .metric-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .metric-card .metric-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
        }

        .metric-card .metric-icon.blue {
            background: #e8f0fe;
            color: var(--brand-primary);
        }

        .metric-card .metric-icon.green {
            background: #ecfdf5;
            color: var(--brand-success);
        }

        .metric-card .metric-icon.amber {
            background: #fef9f0;
            color: var(--brand-accent);
        }

        .metric-card .metric-icon.red {
            background: #fef2f2;
            color: var(--brand-danger);
        }

        .metric-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        .metric-trend {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 6px;
            padding: 3px 10px;
            border-radius: 20px;
        }

        .metric-trend.up {
            background: #ecfdf5;
            color: var(--brand-success);
        }

        .metric-trend.down {
            background: #fef2f2;
            color: var(--brand-danger);
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .service-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .service-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .service-card:hover .service-card-img img {
            transform: scale(1.05);
        }

        .service-card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .service-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .service-card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 16px;
            flex: 1;
            line-height: 1.6;
        }

        .service-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 14px;
        }

        .service-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-page);
            color: var(--text-light);
            border: 1px solid var(--border-light);
        }

        .service-card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .service-card-link:hover {
            color: var(--brand-primary-dark);
            gap: 10px;
        }

        .service-card-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-fast);
        }

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

        /* ========== COMPARISON SECTION ========== */
        .comparison-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: stretch;
        }

        .comparison-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .comparison-card.featured {
            border: 2px solid var(--brand-primary);
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .comparison-card.featured::before {
            content: '推荐方案';
            position: absolute;
            top: -14px;
            right: 28px;
            background: var(--brand-primary);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

        .comparison-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .comparison-card .comp-subtitle {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

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

        .comparison-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .comparison-list li i.fa-check {
            color: var(--brand-success);
            font-size: 0.85rem;
        }

        .comparison-list li i.fa-times {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .comparison-highlight {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-primary);
            margin-bottom: 4px;
        }

        .comparison-highlight-label {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        /* ========== FEATURES SECTION ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .feature-item {
            display: flex;
            gap: 18px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            align-items: flex-start;
        }

        .feature-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
        }

        .feature-icon-circle {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.2rem;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        .feature-text h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .feature-text p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-section {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            max-width: 900px;
            margin: 0 auto;
        }

        .brand-intro-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            text-align: center;
        }

        .brand-intro-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.9;
            text-align: justify;
            margin-bottom: 12px;
        }

        .brand-intro-section p:last-child {
            margin-bottom: 0;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: flex;
            gap: 0;
            align-items: flex-start;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        .process-step {
            flex: 1;
            min-width: 180px;
            max-width: 240px;
            text-align: center;
            position: relative;
            padding: 0 15px;
        }

        .process-step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        .process-connector {
            display: none;
            position: absolute;
            top: 28px;
            left: 55%;
            width: calc(100% - 40px);
            height: 2px;
            background: var(--border-light);
            z-index: 1;
        }

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

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all var(--transition-fast);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-dark) 100%);
            border-radius: var(--radius-2xl);
            padding: 56px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            max-width: 900px;
            margin: 0 auto;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form-inline {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 15px 20px;
            border-radius: 50px;
            border: 2px solid transparent;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .cta-input:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
        }

        .cta-submit-btn {
            padding: 15px 30px;
            background: var(--brand-accent);
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
            white-space: nowrap;
        }

        .cta-submit-btn:hover {
            background: var(--brand-accent-dark);
            box-shadow: 0 6px 22px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 50px 0 0;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: #94a3b8;
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: #94a3b8;
        }

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

        .footer-bottom-links a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links span {
            color: #64748b;
            font-size: 0.82rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-visual-card {
                max-width: 100%;
            }
            .hero-title {
                font-size: 2.1rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
            .comparison-container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .nav-tabs-row {
                gap: 2px;
                padding: 4px 5px;
            }
            .nav-tab-chip {
                padding: 7px 13px;
                font-size: 0.8rem;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .logo-link {
                font-size: 1.15rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 0;
                gap: 10px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                border-radius: 12px;
                padding: 6px;
                gap: 2px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-tabs-row::-webkit-scrollbar {
                display: none;
            }
            .nav-tab-chip {
                flex-shrink: 0;
                padding: 8px 14px;
                font-size: 0.8rem;
                white-space: nowrap;
            }
            .header-cta-btn {
                flex-shrink: 0;
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .hero-section {
                padding: 40px 0 50px;
                min-height: auto;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-form-inline {
                flex-direction: column;
            }
            .hero-input {
                width: 100%;
            }
            .hero-submit-btn {
                width: 100%;
                text-align: center;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-number {
                font-size: 1.6rem;
            }
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-padding {
                padding: 45px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 16px;
            }
            .process-step {
                max-width: 100%;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-form-inline {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
            .cta-submit-btn {
                width: 100%;
                text-align: center;
            }
            .brand-intro-section {
                padding: 28px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-bottom-links {
                justify-content: center;
                flex-wrap: wrap;
                gap: 10px;
            }
            .comparison-card {
                padding: 22px 18px;
            }
            .comparison-card.featured::before {
                right: 14px;
                font-size: 0.7rem;
                padding: 4px 12px;
                top: -12px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.45rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 12px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .metric-card {
                padding: 18px 12px;
            }
            .metric-number {
                font-size: 1.4rem;
            }
            .metric-label {
                font-size: 0.78rem;
            }
            .hero-visual-card {
                padding: 18px 14px;
            }
            .hero-visual-card .data-row {
                padding: 8px 0;
            }
            .hero-visual-card .data-label {
                font-size: 0.75rem;
            }
            .hero-visual-card .data-value {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .section-header p {
                font-size: 0.9rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
            .faq-answer p {
                font-size: 0.82rem;
            }
        }

/* roulang page: category6 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            box-sizing: border-box;
        }

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

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            flex-shrink: 0;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
            flex-shrink: 0;
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
        }

        /* ========== HERO BANNER ========== */
        .hero-banner-slim {
            position: relative;
            width: 100%;
            min-height: 380px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-banner-slim::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.82) 40%, rgba(26, 86, 219, 0.12) 100%);
            z-index: 1;
        }

        .hero-banner-slim::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -40px;
            width: 280px;
            height: 280px;
            background: rgba(26, 86, 219, 0.04);
            border-radius: 50%;
            z-index: 1;
        }

        .hero-banner-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            padding: 40px 0;
        }

        .hero-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .hero-banner-content h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }

        .hero-banner-content h1 span {
            color: var(--brand-primary);
        }

        .hero-banner-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 22px;
            max-width: 560px;
        }

        .hero-stats-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            line-height: 1.3;
        }

        /* ========== SECTION COMMON ========== */
        .section-padding {
            padding: 70px 0;
        }

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

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--brand-primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
        }

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

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

        /* ========== METRICS BOARD ========== */
        .metrics-board {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .metric-card {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            background: var(--bg-page);
            border: 1px solid transparent;
            height: 100%;
        }

        .metric-card:hover {
            border-color: var(--brand-primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            background: var(--bg-white);
        }

        .metric-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--brand-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.3rem;
            color: var(--brand-primary);
        }

        .metric-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
            overflow: hidden;
        }

        .service-matrix-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 40px;
            background: var(--brand-primary);
            border-radius: 0 0 6px 0;
            transition: height var(--transition-normal);
        }

        .service-matrix-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-primary-light);
        }

        .service-matrix-card:hover::before {
            height: 60px;
        }

        .service-matrix-card .card-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            flex-shrink: 0;
        }

        .service-matrix-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .service-matrix-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .service-matrix-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
            font-family: var(--font-heading);
        }

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

        .service-matrix-card .card-tag-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .card-tag {
            font-size: 0.78rem;
            padding: 4px 12px;
            border-radius: 50px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 500;
        }

        /* ========== HOT TOPICS ========== */
        .topic-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            gap: 16px;
            align-items: flex-start;
            height: 100%;
        }

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

        .topic-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-primary-light);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 1rem;
        }

        .topic-card-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            font-family: var(--font-heading);
        }

        .topic-card-content p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin: 0;
            line-height: 1.5;
        }

        .topic-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 14px;
            margin-top: 6px;
        }

        /* ========== EXPERT SECTION ========== */
        .expert-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-normal);
            height: 100%;
        }

        .expert-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .expert-avatar-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary-light), #dbeafe);
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--brand-primary);
            font-weight: 700;
            border: 3px solid var(--brand-primary-light);
        }

        .expert-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .expert-card .expert-role {
            font-size: 0.85rem;
            color: var(--brand-primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

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

        /* ========== COMPARISON ========== */
        .comparison-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            height: 100%;
            transition: all var(--transition-normal);
        }

        .comparison-card.featured {
            border-color: var(--brand-primary);
            border-width: 2px;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .comparison-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--brand-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .comparison-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            font-family: var(--font-heading);
        }

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

        .comparison-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .comparison-list li i.fa-check {
            color: var(--brand-success);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-times {
            color: var(--text-muted);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            transition: all var(--transition-fast);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition-fast);
            font-family: var(--font-heading);
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question i {
            transition: transform var(--transition-normal);
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2744 100%);
            border-radius: var(--radius-2xl);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 350px;
            height: 350px;
            background: rgba(26, 86, 219, 0.15);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 220px;
            height: 220px;
            background: rgba(245, 158, 11, 0.1);
            border-radius: 50%;
            z-index: 0;
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
        }

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

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .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: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
        }

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

        .cta-form input:focus {
            border-color: var(--brand-primary);
            background: rgba(255, 255, 255, 0.1);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.2);
        }

        .cta-submit-btn {
            padding: 14px 32px;
            border-radius: 50px;
            background: var(--brand-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
        }

        .cta-submit-btn:hover {
            background: var(--brand-accent-dark);
            box-shadow: 0 6px 24px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 24px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
            font-family: var(--font-heading);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 12px;
            font-family: var(--font-heading);
        }

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

        .footer-col ul li {
            margin-bottom: 7px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.8rem;
            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: #fff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-banner-slim {
                min-height: 320px;
            }
            .hero-banner-content h1 {
                font-size: 2.1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .metrics-board {
                margin-top: -35px;
                padding: 30px 20px;
            }
            .metric-number {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 0;
                gap: 10px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                border-radius: 40px;
                padding: 4px 5px;
                gap: 2px;
            }
            .nav-tab-chip {
                padding: 7px 13px;
                font-size: 0.78rem;
            }
            .header-cta-btn {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .hero-banner-slim {
                min-height: 280px;
            }
            .hero-banner-content h1 {
                font-size: 1.7rem;
            }
            .hero-banner-content .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 1.4rem;
            }
            .metrics-board {
                margin-top: -30px;
                padding: 24px 16px;
                border-radius: var(--radius-lg);
            }
            .metric-card {
                padding: 14px 10px;
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-sm {
                padding: 30px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .faq-section {
                padding: 32px 20px;
            }
            .comparison-card {
                padding: 20px;
            }
            .service-matrix-card {
                padding: 20px 16px;
            }
            .topic-card {
                flex-direction: column;
                gap: 12px;
            }
            .expert-card {
                padding: 18px;
            }
            .expert-avatar-circle {
                width: 60px;
                height: 60px;
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .hero-banner-slim {
                min-height: 240px;
            }
            .hero-banner-content h1 {
                font-size: 1.4rem;
            }
            .hero-banner-content .hero-subtitle {
                font-size: 0.82rem;
            }
            .hero-stats-row {
                gap: 10px;
                flex-direction: column;
            }
            .hero-stat-num {
                font-size: 1.2rem;
            }
            .metrics-board {
                margin-top: -20px;
                padding: 16px 10px;
            }
            .metric-number {
                font-size: 1.3rem;
            }
            .metric-label {
                font-size: 0.75rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .nav-tab-chip {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                min-width: 100%;
            }
            .cta-submit-btn {
                width: 100%;
                text-align: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-bottom-links {
                justify-content: center;
                gap: 10px;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1240a3;
            --brand-primary-light: #e8f0fe;
            --brand-accent: #f59e0b;
            --brand-accent-dark: #d97706;
            --brand-success: #10b981;
            --brand-danger: #ef4444;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-light: #64748b;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dark-secondary: #1e293b;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.13);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --transition-slow: 0.5s ease;
            --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background-color: var(--bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--brand-primary);
        }

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

        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: var(--font-body);
        }

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 20px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary);
            white-space: nowrap;
            letter-spacing: -0.3px;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .logo-link:hover {
            color: var(--brand-primary-dark);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
            background: var(--bg-page);
            border-radius: 50px;
            padding: 5px 6px;
        }

        .nav-tab-chip {
            padding: 9px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.2px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-block;
        }

        .nav-tab-chip:hover {
            color: var(--brand-primary);
            background: rgba(26, 86, 219, 0.06);
        }

        .nav-tab-chip.active {
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.3);
        }

        .nav-tab-chip.active:hover {
            background: var(--brand-primary-dark);
            color: #fff;
        }

        .header-cta-btn {
            padding: 10px 22px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--brand-primary);
            color: #fff !important;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: 0 2px 8px rgba(26, 86, 219, 0.25);
            flex-shrink: 0;
        }

        .header-cta-btn:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
            color: #fff !important;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(170deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 70%, #ffffff 100%);
            padding: 60px 0 70px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 8px 16px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.875rem;
            width: fit-content;
            letter-spacing: 0.3px;
        }

        .hero-badge .pulse-dot {
            width: 10px;
            height: 10px;
            background: var(--brand-success);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.6);
            }
        }

        .hero-title {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin: 0;
        }

        .hero-title .highlight {
            color: var(--brand-primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 10px;
            background: rgba(26, 86, 219, 0.12);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
            max-width: 480px;
        }

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

        .btn-hero-primary {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1rem;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.3);
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-primary:hover {
            background: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 86, 219, 0.4);
            color: #fff;
        }

        .btn-hero-outline {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-outline:hover {
            background: var(--brand-primary-light);
            border-color: var(--brand-primary-dark);
            color: var(--brand-primary-dark);
        }

        .hero-right {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 28px;
        }

        .progress-ring-wrapper {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .progress-ring-svg {
            transform: rotate(-90deg);
            width: 220px;
            height: 220px;
        }

        .progress-ring-bg {
            fill: none;
            stroke: #e8ecf2;
            stroke-width: 14;
        }

        .progress-ring-fill {
            fill: none;
            stroke: var(--brand-primary);
            stroke-width: 14;
            stroke-linecap: round;
            transition: stroke-dashoffset 2s ease;
        }

        .progress-ring-center {
            position: absolute;
            text-align: center;
        }

        .progress-ring-value {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1;
            font-family: var(--font-heading);
        }

        .progress-ring-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 4px;
            font-weight: 500;
        }

        .tier-preview-cards {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
        }

        .tier-preview-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 2px solid transparent;
            transition: all var(--transition-fast);
            flex: 1;
            min-width: 110px;
            max-width: 150px;
            cursor: pointer;
        }

        .tier-preview-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .tier-preview-card.featured {
            border-color: var(--brand-accent);
            background: #fffdf5;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .tier-preview-card.featured::before {
            content: '热门';
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-accent);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            white-space: nowrap;
        }

        .tier-icon {
            font-size: 1.6rem;
            margin-bottom: 8px;
            color: var(--brand-primary);
        }

        .tier-preview-card.featured .tier-icon {
            color: var(--brand-accent);
        }

        .tier-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .tier-price {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--brand-primary);
        }

        .tier-preview-card.featured .tier-price {
            color: var(--brand-accent-dark);
        }

        .tier-price span {
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        /* ========== METRICS DASHBOARD ========== */
        .metrics-section {
            padding: 50px 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }

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

        .metric-card {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-page);
            border-radius: var(--radius-lg);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

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

        .metric-icon {
            font-size: 1.8rem;
            color: var(--brand-primary);
            margin-bottom: 10px;
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 6px;
        }

        .metric-value .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .metric-label {
            font-size: 0.875rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== SERVICE MATRIX ========== */
        .service-matrix-section {
            padding: 70px 0;
            background: var(--bg-page);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .matrix-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            box-shadow: var(--shadow-md);
            border: 2px solid transparent;
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }

        .matrix-card:hover {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-xl);
            transform: translateY(-6px);
        }

        .matrix-card.pro-card {
            border-color: var(--brand-accent);
            box-shadow: var(--shadow-lg);
            background: linear-gradient(180deg, #fffef9 0%, #ffffff 100%);
        }

        .matrix-card.pro-card::after {
            content: '推荐';
            position: absolute;
            top: 18px;
            right: -30px;
            background: var(--brand-accent);
            color: #fff;
            padding: 6px 40px;
            font-size: 0.78rem;
            font-weight: 700;
            transform: rotate(45deg);
            letter-spacing: 0.5px;
        }

        .matrix-card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 4px;
        }

        .matrix-card-name {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            font-family: var(--font-heading);
        }

        .matrix-card-price {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1;
        }

        .matrix-card.pro-card .matrix-card-price {
            color: var(--brand-accent-dark);
        }

        .matrix-card-price .period {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .matrix-features {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

        .matrix-features li i {
            color: var(--brand-success);
            margin-top: 3px;
            flex-shrink: 0;
        }

        .btn-matrix-cta {
            padding: 13px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            text-align: center;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
            letter-spacing: 0.3px;
            width: 100%;
        }

        .btn-matrix-cta.primary {
            background: var(--brand-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.25);
        }

        .btn-matrix-cta.primary:hover {
            background: var(--brand-primary-dark);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.35);
        }

        .btn-matrix-cta.accent {
            background: var(--brand-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
        }

        .btn-matrix-cta.accent:hover {
            background: var(--brand-accent-dark);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
        }

        .btn-matrix-cta.outline {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
        }

        .btn-matrix-cta.outline:hover {
            background: var(--brand-primary-light);
        }

        /* ========== COMPARISON SECTION ========== */
        .comparison-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: stretch;
        }

        .comparison-card {
            border-radius: var(--radius-xl);
            padding: 36px 28px;
            border: 2px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .comparison-card.without {
            background: #fef2f2;
            border-color: #fecaca;
        }

        .comparison-card.with {
            background: #f0fdf4;
            border-color: #bbf7d0;
            box-shadow: var(--shadow-lg);
        }

        .comparison-card h3 {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-card.without h3 {
            color: #dc2626;
        }

        .comparison-card.with h3 {
            color: #16a34a;
        }

        .comparison-card .comparison-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin: 16px 0;
        }

        .comparison-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .comparison-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding: 7px 0;
        }

        .comparison-card.without .comparison-list li i {
            color: #ef4444;
        }

        .comparison-card.with .comparison-list li i {
            color: #10b981;
        }

        /* ========== LEAGUES SECTION ========== */
        .leagues-section {
            padding: 70px 0;
            background: var(--bg-page);
        }

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

        .league-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .league-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .league-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .league-card-body {
            padding: 16px;
            text-align: center;
        }

        .league-card-body h4 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin: 0 0 4px;
        }

        .league-card-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ========== PUSH FEATURES ========== */
        .push-features-section {
            padding: 70px 0;
            background: var(--bg-dark);
            color: #e2e8f0;
        }

        .push-features-section .section-title {
            color: #fff;
        }

        .push-features-section .section-subtitle {
            color: #cbd5e1;
        }

        .push-features-section .section-label {
            background: rgba(255, 255, 255, 0.1);
            color: #f1f5f9;
        }

        .push-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .push-card {
            background: var(--bg-dark-secondary);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-fast);
        }

        .push-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        }

        .push-icon {
            font-size: 2.4rem;
            color: var(--brand-accent);
            margin-bottom: 16px;
        }

        .push-card h4 {
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 8px;
        }

        .push-card p {
            font-size: 0.9rem;
            color: #94a3b8;
            margin: 0;
            line-height: 1.6;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-section {
            padding: 70px 0;
            background: var(--bg-white);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testimonial-card {
            background: var(--bg-page);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-light);
        }

        .testimonial-stars {
            color: var(--brand-accent);
            font-size: 0.9rem;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            font-style: italic;
        }

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

        .testimonial-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--brand-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--brand-primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .testimonial-author-info {
            font-size: 0.85rem;
        }

        .testimonial-author-info strong {
            color: var(--text-primary);
            display: block;
        }

        .testimonial-author-info span {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 70px 0;
            background: var(--bg-page);
        }

        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

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

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-body);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--brand-primary);
        }

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-normal), padding var(--transition-normal);
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(160deg, #1a56db 0%, #1240a3 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 350px;
            height: 350px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -50px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }

        .cta-content p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-form-row {
            display: flex;
            gap: 10px;
            max-width: 500px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 2px solid transparent;
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
            background: #fff;
            color: var(--text-primary);
        }

        .cta-input:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.2);
        }

        .btn-cta-submit {
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            background: var(--brand-accent);
            color: #fff;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
            letter-spacing: 0.3px;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-cta-submit:hover {
            background: var(--brand-accent-dark);
            box-shadow: 0 10px 28px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
        }

        .cta-trust {
            margin-top: 18px;
            font-size: 0.8rem;
            opacity: 0.7;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .cta-trust i {
            color: var(--brand-accent);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: #cbd5e1;
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand h3 {
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 10px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            line-height: 1.7;
            color: #94a3b8;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            gap: 12px;
            font-size: 0.8rem;
            color: #64748b;
        }

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

        .footer-bottom-links a {
            color: #94a3b8;
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-links span {
            color: #64748b;
            font-size: 0.78rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                text-align: center;
            }
            .hero-left {
                align-items: center;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matrix-card.pro-card {
                grid-column: span 2;
                max-width: 400px;
                justify-self: center;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .leagues-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .push-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 10px 0;
                gap: 12px;
            }
            .nav-tabs-row {
                order: 3;
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                border-radius: 50px;
                justify-content: flex-start;
            }
            .nav-tabs-row::-webkit-scrollbar {
                display: none;
            }
            .nav-tab-chip {
                flex-shrink: 0;
                font-size: 0.8rem;
                padding: 8px 14px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .progress-ring-svg {
                width: 170px;
                height: 170px;
            }
            .progress-ring-value {
                font-size: 2.4rem;
            }
            .tier-preview-cards {
                flex-direction: column;
                align-items: center;
            }
            .tier-preview-card {
                max-width: 100%;
                width: 100%;
                min-width: auto;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .metric-value {
                font-size: 1.6rem;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .matrix-card.pro-card {
                grid-column: span 1;
                max-width: 100%;
            }
            .leagues-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .push-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-title {
                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-row {
                flex-direction: column;
                align-items: center;
            }
            .cta-input {
                width: 100%;
            }
            .btn-cta-submit {
                width: 100%;
            }
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-section {
                padding: 40px 0 50px;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 16px 10px;
            }
            .metric-value {
                font-size: 1.3rem;
            }
            .metric-icon {
                font-size: 1.3rem;
            }
            .leagues-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .progress-ring-svg {
                width: 140px;
                height: 140px;
            }
            .progress-ring-value {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
        }