/* roulang page: index */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }
        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .nav-brand:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            position: relative;
        }
        .nav-search input {
            width: 180px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }
        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 220px;
            background: var(--white);
        }
        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-body);
            cursor: pointer;
            padding: 8px;
        }

        /* ========== SECTIONS ========== */
        section {
            padding: 5rem 0;
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--secondary-bg);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header .section-desc {
            margin: 0 auto;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            padding: 4rem 0 5rem;
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
            overflow: hidden;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-left {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #FFF3E0;
            color: #E65100;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 8px 16px;
            border-radius: 24px;
            margin-bottom: 20px;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 166, 35, 0.4);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(245, 166, 35, 0);
            }
        }
        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: #E65100;
            border-radius: 50%;
            animation: blink-dot 1s ease-in-out infinite;
        }
        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero-title {
            font-size: 3rem;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
        }
        .hero-title span {
            color: var(--primary);
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            font-weight: 500;
        }
        .hero-desc {
            font-size: 1.02rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 480px;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            display: inline-block;
            padding: 14px 28px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.35);
        }
        .btn-outline {
            display: inline-block;
            padding: 14px 28px;
            background: transparent;
            color: var(--primary) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--primary);
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--secondary-bg);
            border-color: var(--primary-dark);
            color: var(--primary-dark) !important;
            transform: translateY(-2px);
        }
        .hero-right {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1;
        }
        .hero-visual {
            position: relative;
            width: 100%;
            max-width: 500px;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow-hover);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .countdown-ring-wrap {
            position: absolute;
            top: -30px;
            right: -20px;
            z-index: 3;
        }
        .countdown-ring {
            width: 100px;
            height: 100px;
            position: relative;
        }
        .countdown-ring svg {
            transform: rotate(-90deg);
            width: 100px;
            height: 100px;
        }
        .countdown-ring .bg-circle {
            fill: none;
            stroke: #E2E8F0;
            stroke-width: 8;
        }
        .countdown-ring .progress-circle {
            fill: none;
            stroke: var(--accent);
            stroke-width: 8;
            stroke-linecap: round;
            stroke-dasharray: 251.2;
            stroke-dashoffset: 50;
            transition: stroke-dashoffset 1s ease;
        }
        .countdown-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-align: center;
        }
        .countdown-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1;
        }
        .countdown-label {
            font-size: 0.7rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .carousel-dots {
            display: flex;
            gap: 8px;
            margin-top: 20px;
            justify-content: center;
        }
        .carousel-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #CBD5E1;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            padding: 0;
        }
        .carousel-dot.active {
            background: var(--primary);
            width: 28px;
            border-radius: 12px;
        }
        .carousel-slogan {
            text-align: center;
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 12px;
            font-weight: 500;
            min-height: 28px;
            transition: opacity 0.4s ease;
        }

        /* ========== COMPARISON TABLE ========== */
        .comparison-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.95rem;
        }
        .comparison-table thead th {
            background: var(--deep-blue);
            color: var(--white);
            padding: 16px 18px;
            text-align: center;
            font-weight: 600;
            font-size: 0.95rem;
        }
        .comparison-table thead th:first-child {
            text-align: left;
            border-radius: var(--radius) 0 0 0;
            background: #1a3a5c;
        }
        .comparison-table thead th:last-child {
            border-radius: 0 var(--radius) 0 0;
        }
        .comparison-table thead th.highlight-col {
            background: var(--primary);
            position: relative;
        }
        .comparison-table thead th.highlight-col::after {
            content: '推荐';
            position: absolute;
            top: -12px;
            right: 16px;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: 10px;
            font-weight: 600;
        }
        .comparison-table tbody td {
            padding: 14px 18px;
            text-align: center;
            border-bottom: 1px solid var(--border);
            color: var(--text-body);
        }
        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .comparison-table tbody tr:hover td {
            background: #FAFBFC;
        }
        .check-icon {
            color: #22C55E;
            font-size: 1.1rem;
        }
        .dash-icon {
            color: #CBD5E1;
        }

        /* ========== RECOMMENDED TIER ========== */
        .tier-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .tier-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            border: 2px solid transparent;
        }
        .tier-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
        }
        .tier-card.featured {
            border-color: var(--primary);
            transform: scale(1.03);
            box-shadow: 0 8px 35px rgba(30, 90, 171, 0.15);
            z-index: 1;
        }
        .tier-card.featured:hover {
            transform: scale(1.03) translateY(-4px);
        }
        .tier-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 14px;
            letter-spacing: 0.03em;
        }
        .tier-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 8px;
        }
        .tier-price {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .tier-price small {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
        }
        .tier-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .tier-features {
            list-style: none;
            text-align: left;
            margin-bottom: 24px;
        }
        .tier-features li {
            padding: 8px 0;
            font-size: 0.9rem;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
            border-bottom: 1px solid #f1f5f9;
        }
        .tier-features li i {
            color: #22C55E;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .tier-btn {
            display: block;
            width: 100%;
            padding: 13px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            border: 2px solid var(--primary);
            background: transparent;
            color: var(--primary);
            text-align: center;
        }
        .tier-btn:hover {
            background: var(--secondary-bg);
        }
        .tier-card.featured .tier-btn {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .tier-card.featured .tier-btn:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        /* ========== NEWS ========== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .news-item:hover {
            background: #FAFBFC;
            padding-left: 12px;
            border-radius: var(--radius-sm);
        }
        .news-date {
            flex-shrink: 0;
            width: 90px;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            padding-top: 2px;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 4px;
            display: block;
            line-height: 1.4;
        }
        .news-title:hover {
            color: var(--primary);
        }
        .news-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-readmore {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .news-readmore:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #3A7BD5 100%);
            color: var(--white);
            text-align: center;
            padding: 4.5rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .cta-section .section-title {
            color: var(--white);
            font-size: 2.2rem;
        }
        .cta-section .section-desc {
            color: rgba(255, 255, 255, 0.85);
            margin: 0 auto 24px;
            max-width: 600px;
        }
        .cta-section .btn-primary {
            background: var(--white);
            color: var(--primary) !important;
            font-size: 1.05rem;
            padding: 16px 36px;
            border-radius: 30px;
            font-weight: 700;
        }
        .cta-section .btn-primary:hover {
            background: #f0f4fa;
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-question {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding-top 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== MEDIA SCROLL ========== */
        .media-scroll-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 12px;
            scroll-behavior: smooth;
        }
        .media-scroll-wrap::-webkit-scrollbar {
            height: 6px;
        }
        .media-scroll-wrap::-webkit-scrollbar-track {
            background: #f1f5f9;
            border-radius: 3px;
        }
        .media-scroll-wrap::-webkit-scrollbar-thumb {
            background: #CBD5E1;
            border-radius: 3px;
        }
        .media-scroll-inner {
            display: flex;
            gap: 20px;
            min-width: max-content;
        }
        .media-card {
            flex-shrink: 0;
            width: 300px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .media-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }
        .media-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .media-card-body {
            padding: 16px;
        }
        .media-card-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: var(--secondary-bg);
            padding: 4px 10px;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 8px;
        }
        .media-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .media-card-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== TIMELINE ========== */
        .timeline {
            position: relative;
            max-width: 700px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--border);
            border-radius: 3px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 14px;
            height: 14px;
            background: var(--primary);
            border-radius: 50%;
            border: 3px solid var(--white);
            box-shadow: 0 0 0 3px var(--primary);
            z-index: 1;
        }
        .timeline-time {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 4px;
        }
        .timeline-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 4px;
        }
        .timeline-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 3rem;
            align-items: center;
        }
        .brand-intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        .brand-intro-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .brand-intro-text h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 14px;
        }
        .brand-intro-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        /* ========== SCENARIO ========== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .scenario-row.reverse {
            flex-direction: row-reverse;
        }
        .scenario-img {
            flex: 1;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        .scenario-img img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .scenario-text {
            flex: 1;
        }
        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 10px;
        }
        .scenario-text p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }
        .scenario-text ul {
            list-style: none;
            padding: 0;
        }
        .scenario-text ul li {
            padding: 6px 0;
            font-size: 0.9rem;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .scenario-text ul li i {
            color: #22C55E;
            font-size: 0.85rem;
        }

        /* ========== STATS ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== CASE CARDS ========== */
        .case-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            padding: 24px;
            transition: all var(--transition);
            text-align: center;
        }
        .case-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }
        .case-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }
        .case-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 6px;
        }
        .case-quote {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 10px;
            font-style: italic;
        }
        .case-metric {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
        }

        /* ========== PARTNERS ========== */
        .partners-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            align-items: center;
        }
        .partner-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 20px 28px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
            text-align: center;
            min-width: 120px;
        }
        .partner-item:hover {
            color: var(--primary);
            box-shadow: var(--card-shadow);
            transform: translateY(-2px);
        }

        /* ========== GUARANTEE ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .guarantee-card {
            text-align: center;
            padding: 28px 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .guarantee-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
        }
        .guarantee-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .guarantee-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 6px;
        }
        .guarantee-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0A1E33;
            color: #CBD5E1;
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: #94A3B8;
            line-height: 1.7;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--white);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: #94A3B8;
        }
        .footer-bottom a {
            color: #94A3B8;
            font-size: 0.82rem;
        }
        .footer-bottom a:hover {
            color: var(--white);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-title {
                font-size: 2.3rem;
            }
            .tier-cards {
                grid-template-columns: 1fr 1fr;
            }
            .tier-card.featured {
                grid-column: span 2;
                transform: scale(1);
            }
            .tier-card.featured:hover {
                transform: scale(1) translateY(-4px);
            }
            .case-cards {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .brand-intro-grid {
                grid-template-columns: 1fr;
            }
            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
            section {
                padding: 3.5rem 0;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search input {
                width: 140px;
            }
            .nav-search input:focus {
                width: 160px;
            }
            .nav-login {
                display: none;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .tier-cards {
                grid-template-columns: 1fr;
            }
            .tier-card.featured {
                grid-column: span 1;
            }
            .case-cards {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .countdown-ring-wrap {
                top: -10px;
                right: -10px;
                transform: scale(0.8);
            }
            .section-title {
                font-size: 1.6rem;
            }
            section {
                padding: 2.5rem 0;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline {
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .media-card {
                width: 240px;
            }
            .media-card img {
                height: 140px;
            }
            .comparison-table {
                min-width: 500px;
                font-size: 0.8rem;
            }
            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 10px 8px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            color: var(--deep-blue);
            line-height: 1.3;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            position: relative;
        }

        .nav-search input {
            width: 180px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 220px;
            background: var(--white);
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 6px;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white) !important;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.3);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: var(--white) !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.2);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.875rem;
            border-radius: var(--radius-sm);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ========== HERO ========== */
        .category-hero {
            position: relative;
            padding: 80px 0 90px;
            background: linear-gradient(170deg, #F8FAFC 0%, #E8EEF8 40%, #F0F4FA 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 50px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .category-hero .hero-text {
            flex: 1;
            min-width: 0;
        }

        .category-hero .hero-badge {
            display: inline-block;
            background: var(--primary);
            color: var(--white);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.03em;
        }

        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }

        .category-hero .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.6;
            max-width: 540px;
        }

        .category-hero .hero-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .category-hero .hero-stat {
            text-align: center;
        }

        .category-hero .hero-stat .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
        }

        .category-hero .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

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

        .category-hero .hero-image {
            flex: 0 0 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow-hover);
            background: var(--white);
            min-height: 300px;
        }

        .category-hero .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

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

        .section-header.left-align {
            text-align: left;
            margin-bottom: 40px;
        }

        .section-header.left-align p {
            margin: 0;
        }

        /* ========== FEATURE CARDS ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
            border-color: var(--border);
        }

        .feature-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin: 0;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
            flex-grow: 1;
        }

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

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

        /* ========== LEAGUE TRACKING CARDS ========== */
        .league-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

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

        .league-card .card-img {
            height: 160px;
            background: var(--secondary-bg);
            position: relative;
            overflow: hidden;
        }

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

        .league-card .card-img .league-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: var(--white);
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .league-card .card-body {
            padding: 20px 22px 22px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .league-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin: 0;
        }

        .league-card .card-body .card-meta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .league-card .card-body .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        .league-card .card-body .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .league-card .card-body .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--secondary-bg);
            color: var(--primary);
        }

        .league-card .card-body .tag.hot {
            background: #FFF3E0;
            color: #E65100;
        }

        .league-card .card-body .tag.live {
            background: #E8F5E9;
            color: #2E7D32;
        }

        .league-card .card-footer {
            padding: 0 22px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .league-card .card-footer .btn-sm {
            padding: 7px 16px;
            font-size: 0.85rem;
        }

        .league-card .card-footer .update-time {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========== SCENARIO ALTERNATING ========== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-bottom: 50px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-row.reverse {
            flex-direction: row-reverse;
        }

        .scenario-row .scenario-text {
            flex: 1;
            min-width: 0;
        }

        .scenario-row .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 12px;
        }

        .scenario-row .scenario-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .scenario-row .scenario-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .scenario-row .scenario-text ul li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        .scenario-row .scenario-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 15px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }

        .scenario-row .scenario-img {
            flex: 0 0 400px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            min-height: 250px;
            background: var(--secondary-bg);
        }

        .scenario-row .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== DATA SHOWCASE ========== */
        .data-showcase {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .data-item {
            background: var(--white);
            padding: 30px 20px;
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .data-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--card-shadow-hover);
            border-color: var(--border);
        }

        .data-item .data-number {
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .data-item .data-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

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

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

        .process-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 60px;
            right: 60px;
            height: 2px;
            background: var(--border);
            z-index: 0;
        }

        .process-step {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 16px;
        }

        .process-step .step-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            transition: all var(--transition);
            box-shadow: 0 0 0 8px var(--white);
        }

        .process-step:hover .step-circle {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.05);
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 6px;
        }

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

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

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 22px 28px;
            margin-bottom: 14px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 16px rgba(30, 90, 171, 0.08);
        }

        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--deep-blue);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .faq-item .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            margin-top: 14px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

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

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #3A7BD5 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

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

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

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        .cta-section .btn-cta-white {
            display: inline-block;
            padding: 14px 36px;
            background: var(--white);
            color: var(--primary) !important;
            border-radius: var(--radius);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }

        .cta-section .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.22);
            background: #f0f4ff;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0F1D2F;
            color: #CBD5E1;
            padding: 56px 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--white);
        }

        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.8rem;
            color: #64748B;
            gap: 10px;
        }

        .site-footer .footer-bottom a {
            color: #94A3B8;
            font-size: 0.8rem;
        }

        .site-footer .footer-bottom a:hover {
            color: var(--white);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-hero .hero-inner {
                flex-direction: column;
                gap: 36px;
            }

            .category-hero .hero-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
                min-height: 250px;
            }

            .category-hero h1 {
                font-size: 2.2rem;
            }

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

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

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

            .scenario-row {
                flex-direction: column !important;
                gap: 30px;
            }

            .scenario-row .scenario-img {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
                min-height: 220px;
            }

            .process-steps {
                flex-wrap: wrap;
                gap: 30px;
            }

            .process-steps::before {
                display: none;
            }

            .process-step {
                flex: 0 0 calc(50% - 15px);
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                z-index: 999;
                gap: 2px;
            }

            .nav-links.show {
                display: flex;
            }

            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .nav-links li a.active::after {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-search input {
                width: 130px;
            }

            .nav-search input:focus {
                width: 160px;
            }

            .nav-login {
                display: none;
            }

            .category-hero {
                padding: 50px 0 60px;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .category-hero .hero-subtitle {
                font-size: 1rem;
            }

            .category-hero .hero-stats {
                gap: 18px;
            }

            .category-hero .hero-stat .stat-number {
                font-size: 1.6rem;
            }

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

            .league-cards-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .data-showcase {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .data-item .data-number {
                font-size: 2rem;
            }

            .process-step {
                flex: 0 0 100%;
            }

            .section {
                padding: 44px 0;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

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

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

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .faq-item {
                padding: 16px 20px;
            }

            .faq-item .faq-question {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .nav-search input {
                width: 100px;
                font-size: 0.8rem;
            }

            .nav-search input:focus {
                width: 130px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .category-hero .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .category-hero .hero-actions .btn {
                width: 100%;
                text-align: center;
            }

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

            .data-item {
                padding: 20px 14px;
            }

            .data-item .data-number {
                font-size: 1.7rem;
            }

            .league-card .card-img {
                height: 130px;
            }

            .scenario-row .scenario-img {
                min-height: 180px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            color: var(--deep-blue);
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 700;
        }
        h2 {
            font-size: 2rem;
            font-weight: 600;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
        }
        p {
            margin: 0 0 1em;
            color: var(--text-body);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section {
            padding: 5rem 0;
        }
        .section-sm {
            padding: 3.5rem 0;
        }
        .section-lg {
            padding: 6.5rem 0;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.75rem;
            padding: 4px 14px;
            background: var(--secondary-bg);
            border-radius: 20px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 0.6rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

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

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }
        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .nav-brand:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
        }
        .nav-search input {
            width: 180px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }
        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 220px;
            background: var(--white);
        }
        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            text-align: center;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white) !important;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.3);
            color: var(--white) !important;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary) !important;
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white) !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.2);
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.9rem;
            border-radius: var(--radius-sm);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff !important;
        }
        .btn-accent:hover {
            background: #e4950f;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.35);
            color: #fff !important;
        }

        /* ========== HERO ========== */
        .hero-team {
            position: relative;
            padding: 5rem 0 4rem;
            background: linear-gradient(180deg, #f8fafc 0%, #eef3f9 100%);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero-team::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 600px;
            height: 600px;
            background: radial-gradient(ellipse, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-team::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(ellipse, rgba(245, 166, 35, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-team .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }
        .hero-team-content {
            flex: 1;
            min-width: 300px;
        }
        .hero-breadcrumb {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .hero-breadcrumb a {
            color: var(--text-muted);
        }
        .hero-breadcrumb a:hover {
            color: var(--primary);
        }
        .hero-team-content h1 {
            font-size: 2.75rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 0.75rem;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .hero-team-content .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
            max-width: 520px;
        }
        .hero-team-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-team-card {
            flex: 0 0 420px;
            min-width: 340px;
            background: var(--white);
            border-radius: var(--radius-xl);
            box-shadow: var(--card-shadow-hover);
            padding: 32px 28px;
            position: relative;
            z-index: 3;
            border: 1px solid var(--border);
        }
        .hero-team-card-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }
        .hero-team-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 8px 24px rgba(30, 90, 171, 0.25);
        }
        .hero-team-name {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin: 0;
        }
        .hero-team-league {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .hero-team-badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--secondary-bg);
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
        }
        .hero-badge i {
            font-size: 0.85rem;
        }
        .hero-badge.accent {
            background: #fff8ed;
            color: #c17d10;
        }
        .hero-team-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            margin-bottom: 20px;
            padding: 16px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .hero-follow-btn {
            width: 100%;
            display: block;
            text-align: center;
            padding: 13px;
            background: var(--primary);
            color: #fff !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }
        .hero-follow-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.3);
            transform: translateY(-2px);
        }
        .hero-follow-btn i {
            margin-right: 6px;
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            padding: 28px 24px;
            transition: all var(--transition);
            border: 1px solid transparent;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .card-icon.lg {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-lg);
            font-size: 1.7rem;
        }
        .card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.5rem;
            color: var(--deep-blue);
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.65;
            flex-grow: 1;
            margin-bottom: 0;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--primary);
        }
        .card-link i {
            transition: transform var(--transition);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-grid.two-col {
            grid-template-columns: repeat(2, 1fr);
        }
        .feature-grid.four-col {
            grid-template-columns: repeat(4, 1fr);
        }

        /* ========== SCENARIO ========== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 50px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse {
            flex-direction: row-reverse;
        }
        .scenario-text {
            flex: 1;
            min-width: 280px;
        }
        .scenario-text h3 {
            font-size: 1.5rem;
            margin-bottom: 0.6rem;
        }
        .scenario-text p {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.8rem;
        }
        .scenario-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scenario-text ul li {
            padding: 6px 0 6px 24px;
            position: relative;
            color: var(--text-body);
            font-size: 0.95rem;
        }
        .scenario-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
        }
        .scenario-img {
            flex: 0 0 420px;
            min-width: 300px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            aspect-ratio: 16 / 10;
            background: var(--secondary-bg);
        }
        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 20px 16px;
        }
        .process-step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: 0 6px 18px rgba(30, 90, 171, 0.25);
        }
        .process-step h4 {
            font-size: 1.1rem;
            margin-bottom: 0.4rem;
            color: var(--deep-blue);
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }
        .process-connector {
            position: absolute;
            top: 44px;
            left: calc(50% + 28px);
            width: calc(100% - 56px);
            height: 2px;
            background: var(--border);
            z-index: 1;
            display: none;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            display: flex;
            gap: 40px;
            align-items: flex-start;
            flex-wrap: wrap;
        }
        .deep-content-text {
            flex: 1;
            min-width: 300px;
        }
        .deep-content-text p {
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 1.2em;
        }
        .deep-content-side {
            flex: 0 0 340px;
            min-width: 280px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            padding: 28px;
            border: 1px solid var(--border);
        }
        .deep-content-side h4 {
            margin-bottom: 14px;
            color: var(--deep-blue);
        }
        .deep-content-side ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .deep-content-side ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--text-body);
        }
        .deep-content-side ul li:last-child {
            border-bottom: none;
        }
        .deep-content-side ul li i {
            color: var(--primary);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        /* ========== CASE CARDS ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            padding: 24px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .case-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
            border-color: var(--border);
        }
        .case-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .case-card-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .case-card-title {
            font-weight: 600;
            color: var(--deep-blue);
            font-size: 1rem;
        }
        .case-card-quote {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            font-style: italic;
        }
        .case-card-metric {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .case-card-metric-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            margin-bottom: 14px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--card-shadow-hover);
        }
        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--deep-blue);
            font-size: 1.05rem;
            user-select: none;
            transition: background var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: var(--bg-light);
        }
        .faq-question i {
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #1a4d96 30%, #3A7BD5 100%);
            padding: 5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.25rem;
            margin-bottom: 0.6rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            background: #fff;
            color: var(--primary) !important;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 40px;
            border-radius: var(--radius-lg);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition);
        }
        .cta-section .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            background: #f0f4fa;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1d2e;
            color: #cbd5e1;
            padding: 4rem 0 1.5rem;
        }
        .site-footer .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 2.5rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
        }
        .footer-desc {
            color: #94a3b8;
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .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);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #94a3b8;
        }
        .footer-bottom a {
            color: #94a3b8;
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-team .container {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-team-card {
                flex: 0 0 auto;
                min-width: auto;
                max-width: 500px;
            }
            .hero-team-content h1 {
                font-size: 2.2rem;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid.four-col {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
            }
            .scenario-img {
                flex: 0 0 auto;
                width: 100%;
                min-width: auto;
            }
            .deep-content {
                flex-direction: column;
            }
            .deep-content-side {
                flex: 0 0 auto;
                width: 100%;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-links li a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-search input {
                width: 140px;
            }
            .nav-search input:focus {
                width: 170px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 12px 20px;
                box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-toggle {
                display: block;
            }
            .nav-actions {
                gap: 8px;
            }
            .nav-search input {
                width: 120px;
                font-size: 0.8rem;
            }
            .nav-search input:focus {
                width: 150px;
            }
            .nav-login {
                font-size: 0.8rem;
                padding: 6px 8px;
            }
            .nav-cta {
                font-size: 0.8rem;
                padding: 8px 14px;
            }
            .hero-team {
                padding: 3rem 0 2.5rem;
                min-height: auto;
            }
            .hero-team-content h1 {
                font-size: 1.8rem;
            }
            .hero-team-content .hero-desc {
                font-size: 1rem;
            }
            .hero-team-card {
                padding: 22px 18px;
            }
            .hero-team-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 8px;
            }
            .hero-stat-value {
                font-size: 1.3rem;
            }
            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-grid.two-col {
                grid-template-columns: 1fr;
            }
            .feature-grid.four-col {
                grid-template-columns: 1fr 1fr;
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
            .hero-team-actions {
                flex-direction: column;
            }
            .hero-team-actions .btn {
                width: 100%;
                text-align: center;
            }
            .hero-badge {
                font-size: 0.8rem;
                padding: 6px 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-team-content h1 {
                font-size: 1.5rem;
            }
            .hero-team-card {
                padding: 16px 14px;
                border-radius: var(--radius-lg);
            }
            .hero-team-avatar {
                width: 52px;
                height: 52px;
                font-size: 1.4rem;
            }
            .hero-team-name {
                font-size: 1.15rem;
            }
            .hero-team-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 4px;
            }
            .hero-stat-value {
                font-size: 1.1rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .hero-team-badges {
                gap: 6px;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .feature-grid.four-col {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 16px 18px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 0.9rem;
            }
            .nav-brand {
                font-size: 1.2rem;
            }
            .nav-brand i {
                font-size: 1.3rem;
            }
            .nav-search {
                display: none;
            }
            .card {
                padding: 20px 16px;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 1rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--deep-blue);
            margin-top: 0;
            line-height: 1.3;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
        }

        .nav-search input {
            width: 180px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 220px;
            background: var(--white);
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }

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

        .nav-toggle:hover {
            background: var(--secondary-bg);
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            text-align: center;
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white) !important;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.35);
            color: var(--white) !important;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: var(--white) !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.25);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white) !important;
        }

        .btn-accent:hover {
            background: #e6951f;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.4);
            color: var(--white) !important;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            padding: 80px 0 100px;
            background: linear-gradient(170deg, #f8fafc 0%, #eef3f9 40%, #e8eff7 100%);
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -40px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            left: -30px;
            bottom: -60px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 60px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        .hero-content {
            flex: 1;
            max-width: 580px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-content h1 {
            font-size: 2.85rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.03em;
        }

        .hero-content h1 span {
            color: var(--primary);
            position: relative;
        }

        .hero-content h1 span::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 8px;
            background: rgba(30, 90, 171, 0.12);
            border-radius: 4px;
            z-index: -1;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            font-weight: 500;
            line-height: 1.5;
        }

        .hero-desc {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 500px;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-visual {
            flex: 1;
            max-width: 520px;
            position: relative;
        }

        .hero-visual .hero-img-wrap {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
            background: var(--white);
        }

        .hero-visual .hero-img-wrap img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-xl);
        }

        .hero-stat-float {
            position: absolute;
            background: var(--white);
            border-radius: var(--radius);
            padding: 16px 20px;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--deep-blue);
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-stat-float.stat-top {
            top: -20px;
            right: -20px;
        }

        .hero-stat-float.stat-bottom {
            bottom: -20px;
            left: -20px;
        }

        .hero-stat-float .stat-dot {
            width: 12px;
            height: 12px;
            background: #22c55e;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(34, 197, 94, 0);
            }
        }

        .hero-stat-float .stat-num {
            font-size: 1.6rem;
            color: var(--primary);
            font-weight: 800;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

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

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(30, 90, 171, 0.07);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            padding: 24px 0;
        }

        .stats-bar-inner {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .stat-item {
            text-align: center;
            flex: 1;
            min-width: 140px;
        }

        .stat-item .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-item .stat-value .stat-unit {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }

        .feature-card .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.4rem;
            color: var(--primary);
            transition: all var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: var(--white);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--deep-blue);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .feature-card .feature-tag {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(30, 90, 171, 0.06);
            color: var(--primary);
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 14px;
        }

        /* ========== COVERAGE SECTION ========== */
        .coverage-block {
            display: flex;
            gap: 50px;
            align-items: center;
        }

        .coverage-text {
            flex: 1;
        }

        .coverage-text h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--deep-blue);
        }

        .coverage-text p {
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .coverage-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

        .coverage-list li {
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .coverage-list li i {
            color: #22c55e;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .coverage-visual {
            flex: 1;
            max-width: 480px;
        }

        .coverage-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            width: 100%;
        }

        /* ========== SCENARIO ========== */
        .scenario-row {
            display: flex;
            gap: 50px;
            align-items: center;
            margin-bottom: 60px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-row.reverse {
            flex-direction: row-reverse;
        }

        .scenario-img {
            flex: 1;
            max-width: 460px;
        }

        .scenario-img img {
            border-radius: var(--radius-lg);
            box-shadow: var(--card-shadow);
            width: 100%;
        }

        .scenario-text {
            flex: 1;
        }

        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 12px;
        }

        .scenario-text p {
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .scenario-text .scenario-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .scenario-tag {
            padding: 6px 14px;
            background: var(--secondary-bg);
            border-radius: 16px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

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

        .process-step {
            flex: 1;
            min-width: 200px;
            max-width: 260px;
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            position: relative;
            z-index: 2;
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.3);
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 8px;
        }

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

        .process-connector {
            position: absolute;
            top: 58px;
            left: 60%;
            right: -40%;
            height: 2px;
            background: linear-gradient(to right, var(--primary-light), var(--border));
            z-index: 1;
            display: block;
        }

        .process-step:last-child .process-connector {
            display: none;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            box-shadow: var(--card-shadow);
            max-width: 900px;
            margin: 0 auto;
        }

        .deep-content-block h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 20px;
        }

        .deep-content-block p {
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .deep-content-block .highlight-box {
            background: var(--secondary-bg);
            border-left: 4px solid var(--primary);
            padding: 20px 24px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 24px 0;
        }

        .deep-content-block .highlight-box p {
            margin: 0;
            font-weight: 500;
            color: var(--deep-blue);
        }

        /* ========== CASE CARDS ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }

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

        .case-card .case-img {
            height: 200px;
            overflow: hidden;
        }

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

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

        .case-card .case-body {
            padding: 24px;
        }

        .case-card .case-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 8px;
        }

        .case-card .case-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .case-metric {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(34, 197, 94, 0.08);
            border-radius: 20px;
            font-weight: 700;
            color: #16a34a;
            font-size: 0.9rem;
        }

        .case-metric i {
            font-size: 0.8rem;
        }

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

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

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

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--deep-blue);
            font-size: 1.05rem;
            user-select: none;
            transition: background var(--transition);
            gap: 16px;
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }

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

        .faq-answer p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            font-size: 0.95rem;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #1a4d96 30%, #3A7BD5 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            color: var(--white);
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 32px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-section .btn-accent {
            padding: 16px 40px;
            font-size: 1.1rem;
            border-radius: var(--radius);
            font-weight: 700;
            background: var(--white);
            color: var(--primary) !important;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }

        .cta-section .btn-accent:hover {
            background: #f8f8f8;
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            color: var(--primary-dark) !important;
        }

        .cta-section .cta-note {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            margin-top: 16px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0d1b2a;
            color: #cbd5e1;
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

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

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul li {
            margin-bottom: 10px;
        }

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

        .footer-col ul li a:hover {
            color: var(--white);
        }

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

        .footer-bottom a {
            color: #64748b;
            font-size: 0.85rem;
        }

        .footer-bottom a:hover {
            color: #cbd5e1;
        }

        .footer-bottom span {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-inner {
                gap: 40px;
            }
            .hero-content h1 {
                font-size: 2.3rem;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .case-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .coverage-block {
                flex-direction: column;
                gap: 30px;
            }
            .coverage-visual {
                max-width: 100%;
            }
            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
                gap: 30px;
            }
            .scenario-img {
                max-width: 100%;
            }
            .process-step .process-connector {
                display: none;
            }
            .process-steps {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                z-index: 999;
                gap: 2px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-links li a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search input {
                width: 140px;
            }
            .nav-search input:focus {
                width: 160px;
            }
            .nav-login {
                display: none;
            }
            .hero-section {
                padding: 50px 0 60px;
                min-height: auto;
            }
            .hero-inner {
                flex-direction: column;
                gap: 30px;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-cta-group {
                justify-content: center;
            }
            .hero-visual {
                max-width: 100%;
            }
            .hero-stat-float.stat-top {
                top: -10px;
                right: 0;
            }
            .hero-stat-float.stat-bottom {
                bottom: -10px;
                left: 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .stats-bar-inner {
                gap: 16px;
            }
            .stat-item .stat-value {
                font-size: 1.6rem;
            }
            .deep-content-block {
                padding: 28px 20px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .coverage-list {
                grid-template-columns: 1fr;
            }
            .process-steps {
                flex-direction: column;
                align-items: center;
                gap: 16px;
            }
            .process-step {
                max-width: 100%;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-group .btn {
                width: 100%;
                text-align: center;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.95rem;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 1rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .nav-search {
                display: none;
            }
            .nav-actions {
                gap: 8px;
            }
            .hero-stat-float {
                font-size: 0.85rem;
                padding: 10px 14px;
            }
            .hero-stat-float .stat-num {
                font-size: 1.2rem;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }
        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }
        .nav-brand:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.93rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-search {
            position: relative;
        }
        .nav-search input {
            width: 170px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }
        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 210px;
            background: var(--white);
        }
        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-body);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        /* ========== SECTION BASE ========== */
        .section {
            padding: 5rem 0;
        }
        .section-sm {
            padding: 3rem 0;
        }
        .section-lg {
            padding: 6rem 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            font-size: 2.1rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .section-header .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-bg-alt {
            background: var(--bg-light);
        }
        .section-bg-blue {
            background: var(--secondary-bg);
        }

        /* ========== HERO BENTO ========== */
        .hero-bento {
            padding: 4rem 0 3rem;
            background: var(--white);
        }
        .hero-bento .bento-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: stretch;
        }
        .bento-main {
            grid-row: 1 / 3;
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .bento-main::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: var(--secondary-bg);
            z-index: 0;
            opacity: 0.6;
        }
        .bento-main>* {
            position: relative;
            z-index: 1;
        }
        .bento-main .bento-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            flex-shrink: 0;
        }
        .bento-main h1 {
            font-size: 2.75rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 0.75rem;
            letter-spacing: -0.03em;
            line-height: 1.2;
        }
        .bento-main .bento-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.7;
            max-width: 480px;
        }
        .bento-main .bento-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .bento-sub {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: default;
        }
        .bento-sub:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-2px);
        }
        .bento-sub .sub-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .bento-sub .sub-info h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin: 0;
            line-height: 1.3;
        }
        .bento-sub .sub-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 4px 0 0;
            line-height: 1.4;
        }
        .bento-cta-strip {
            grid-column: 1 / -1;
            background: linear-gradient(135deg, #1E5AAB 0%, #3A7BD5 100%);
            border-radius: var(--radius-lg);
            padding: 1.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--white);
            box-shadow: 0 6px 24px rgba(30, 90, 171, 0.25);
        }
        .bento-cta-strip .strip-text {
            font-size: 1.05rem;
            font-weight: 500;
            line-height: 1.5;
        }
        .bento-cta-strip .strip-text strong {
            font-size: 1.2rem;
            font-weight: 700;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            text-align: center;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--white) !important;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary) !important;
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white) !important;
            transform: translateY(-2px);
        }
        .btn-white {
            background: var(--white);
            color: var(--primary) !important;
            font-weight: 700;
        }
        .btn-white:hover {
            background: #f0f4fa;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
        }
        .btn-lg {
            padding: 14px 34px;
            font-size: 1.1rem;
            border-radius: var(--radius);
        }

        /* ========== FEATURE CARDS ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 2rem 1.75rem;
            box-shadow: var(--card-shadow);
            border: 1px solid transparent;
            transition: all var(--transition);
            text-align: left;
            position: relative;
        }
        .feature-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .feature-card .fc-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 1.25rem;
            flex-shrink: 0;
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* ========== STAT ROW ========== */
        .stat-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            text-align: center;
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-3px);
        }
        .stat-card .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 0.5rem;
            line-height: 1.4;
        }

        /* ========== SCENARIO ALTERNATING ========== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 3rem;
            padding: 2.5rem 0;
            border-bottom: 1px solid var(--border);
        }
        .scenario-row:last-child {
            border-bottom: none;
        }
        .scenario-row.reverse {
            flex-direction: row-reverse;
        }
        .scenario-img {
            flex: 0 0 42%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            aspect-ratio: 16 / 10;
            background: var(--secondary-bg);
        }
        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scenario-text {
            flex: 1;
        }
        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 0.5rem;
        }
        .scenario-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0.75rem;
        }
        .scenario-text .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scenario-text .tag-list li {
            background: var(--secondary-bg);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            white-space: nowrap;
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .process-step .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 16px rgba(30, 90, 171, 0.25);
        }
        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 0.35rem;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .process-line {
            position: absolute;
            top: 28px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--border);
            z-index: 0;
            display: none;
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content {
            display: flex;
            gap: 2.5rem;
            align-items: flex-start;
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
        }
        .deep-content .dc-visual {
            flex: 0 0 200px;
            text-align: center;
        }
        .deep-content .dc-visual .dc-icon-circle {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--secondary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            margin: 0 auto 1rem;
        }
        .deep-content .dc-text {
            flex: 1;
        }
        .deep-content .dc-text h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 0.75rem;
        }
        .deep-content .dc-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0.75rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 1.5rem 0;
            cursor: pointer;
            transition: all var(--transition);
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item .faq-q {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--deep-blue);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
        }
        .faq-item .faq-q i {
            color: var(--text-muted);
            transition: transform var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding-top 0.35s ease;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-top: 0;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: 0.75rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #3A7BD5 100%);
            color: var(--white);
            text-align: center;
            padding: 4rem 0;
            border-radius: 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .cta-section p {
            font-size: 1.1rem;
            margin-bottom: 1.75rem;
            opacity: 0.9;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--deep-blue);
            color: #cbd5e1;
            padding: 4rem 0 1.5rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #94a3b8;
            margin: 0;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .site-footer .footer-col ul li a {
            color: #94a3b8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--white);
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            justify-content: space-between;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 0.85rem;
            color: #94a3b8;
        }
        .site-footer .footer-bottom a {
            color: #94a3b8;
            font-size: 0.85rem;
        }
        .site-footer .footer-bottom a:hover {
            color: var(--white);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-bento .bento-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .bento-main {
                grid-row: 1 / 2;
                padding: 2rem 1.5rem;
            }
            .bento-main h1 {
                font-size: 2.2rem;
            }
            .bento-cta-strip {
                grid-column: 1 / -1;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .deep-content {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .deep-content .dc-visual {
                flex: unset;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .scenario-row {
                flex-direction: column;
                gap: 1.5rem;
                text-align: center;
            }
            .scenario-row.reverse {
                flex-direction: column;
            }
            .scenario-img {
                flex: unset;
                width: 100%;
                max-width: 500px;
            }
            .scenario-text .tag-list {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 1rem;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                gap: 2px;
                z-index: 999;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links li a {
                width: 100%;
                padding: 10px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-links li a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search input {
                width: 130px;
            }
            .nav-search input:focus {
                width: 160px;
            }
            .nav-cta {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
            .hero-bento .bento-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .bento-main {
                grid-row: auto;
                padding: 1.75rem 1.25rem;
            }
            .bento-main h1 {
                font-size: 1.85rem;
            }
            .bento-main .bento-desc {
                font-size: 1rem;
            }
            .bento-sub {
                padding: 1.25rem;
                gap: 0.75rem;
            }
            .bento-cta-strip {
                flex-direction: column;
                text-align: center;
                padding: 1.25rem 1.5rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .stat-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card .stat-num {
                font-size: 2rem;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .section {
                padding: 3rem 0;
            }
            .section-lg {
                padding: 3.5rem 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }
            .deep-content {
                padding: 1.5rem;
            }
            .faq-item .faq-q {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .nav-search input {
                width: 100px;
                font-size: 0.8rem;
            }
            .nav-search input:focus {
                width: 130px;
            }
            .nav-cta {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .nav-login {
                font-size: 0.8rem;
            }
            .bento-main h1 {
                font-size: 1.55rem;
            }
            .bento-cta-strip .strip-text {
                font-size: 0.9rem;
            }
            .bento-cta-strip .strip-text strong {
                font-size: 1rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: 1rem;
            }
            .stat-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 1.25rem 1rem;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
            .feature-card h3 {
                font-size: 1.05rem;
            }
        }

/* roulang page: category5 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
        }

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

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            color: var(--deep-blue);
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-search {
            position: relative;
        }

        .nav-search input {
            width: 180px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 220px;
            background: var(--white);
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }

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

        .nav-toggle:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white) !important;
            box-shadow: 0 2px 8px rgba(30, 90, 171, 0.2);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 90, 171, 0.35);
            color: var(--white) !important;
        }

        .btn-outline {
            background: var(--white);
            color: var(--primary) !important;
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--secondary-bg);
            border-color: var(--primary-dark);
            color: var(--primary-dark) !important;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white) !important;
            box-shadow: 0 2px 8px rgba(245, 166, 35, 0.25);
        }

        .btn-accent:hover {
            background: #e5941a;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(245, 166, 35, 0.35);
            color: var(--white) !important;
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.1rem;
            border-radius: var(--radius-lg);
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 5rem 0;
        }

        .section-sm {
            padding: 3.5rem 0;
        }

        .section-lg {
            padding: 6.5rem 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2.5rem;
            max-width: 680px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== HERO ========== */
        .hero-category {
            position: relative;
            background: linear-gradient(170deg, #f8fafc 0%, #eef3fa 40%, #e2ebf7 100%);
            padding: 4.5rem 0 5rem;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(30, 90, 171, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(58, 123, 213, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .hero-category .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(30, 90, 171, 0.08);
            color: var(--primary);
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .hero-category h1 {
            font-size: 2.75rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 1rem;
            letter-spacing: -0.03em;
            line-height: 1.25;
        }

        .hero-category .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.7;
            max-width: 520px;
        }

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

        .hero-category .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--card-shadow-hover);
            aspect-ratio: 16 / 10;
            background: #e8edf4;
        }

        .hero-category .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-xl);
        }

        .hero-category .hero-stats-row {
            display: flex;
            gap: 24px;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }

        .hero-category .hero-stat {
            text-align: center;
            background: var(--white);
            padding: 16px 20px;
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            min-width: 90px;
        }

        .hero-category .hero-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }

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

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--card-shadow);
            transition: all 0.3s ease;
            border: 1px solid transparent;
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: #e8eef6;
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            flex-shrink: 0;
        }

        .card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--deep-blue);
        }

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

        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--secondary-bg);
            color: var(--primary);
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 0.75rem;
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-grid-alt {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 30px;
            align-items: start;
        }

        .feature-grid-alt .feature-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            aspect-ratio: 16 / 10;
        }

        .feature-grid-alt .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ========== SCENARIO ========== */
        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 3rem;
            padding: 0;
        }

        .scenario-block.reverse {
            grid-template-columns: 1.2fr 1fr;
        }

        .scenario-block.reverse .scenario-image {
            order: 1;
        }

        .scenario-block.reverse .scenario-text {
            order: 0;
        }

        .scenario-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            aspect-ratio: 16 / 10;
        }

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

        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--deep-blue);
        }

        .scenario-text p {
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 1rem;
        }

        .scenario-text .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .scenario-text .scenario-list li {
            padding: 6px 0 6px 24px;
            position: relative;
            color: var(--text-body);
            font-size: 0.95rem;
        }

        .scenario-text .scenario-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.85rem;
        }

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

        .process-step {
            text-align: center;
            position: relative;
            padding: 20px 16px;
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            position: relative;
            z-index: 2;
            box-shadow: 0 4px 16px rgba(30, 90, 171, 0.25);
        }

        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 0.4rem;
        }

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

        /* ========== DATA TABLE ========== */
        .data-highlight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .data-highlight-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--card-shadow);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: all 0.3s ease;
            border-left: 4px solid var(--primary);
        }

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

        .data-highlight-card .dh-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .data-highlight-card .dh-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin-bottom: 4px;
        }

        .data-highlight-card .dh-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

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

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: #c8d6e5;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
        }

        .faq-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--deep-blue);
            margin: 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .faq-item h4 i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open h4 i {
            transform: rotate(180deg);
        }

        .faq-item .faq-body {
            display: none;
            padding-top: 12px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 1px solid var(--border);
            margin-top: 12px;
        }

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #2c6ec4 40%, #3A7BD5 100%);
            padding: 4.5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -40px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            color: var(--white);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 2rem;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn {
            background: var(--white);
            color: var(--primary) !important;
            font-weight: 700;
            padding: 14px 36px;
            font-size: 1.05rem;
            border-radius: var(--radius-lg);
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.15);
        }

        .cta-section .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
            background: #f0f4f8;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1f33;
            color: #c8d6e5;
            padding: 3.5rem 0 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 2.5rem;
        }

        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #a0b4c8;
            margin: 0;
        }

        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }

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

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

        .site-footer .footer-col ul li a {
            color: #a0b4c8;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--white);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #8899aa;
        }

        .site-footer .footer-bottom a {
            color: #a0b4c8;
            font-size: 0.85rem;
        }

        .site-footer .footer-bottom a:hover {
            color: var(--white);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-category .hero-inner {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .hero-category h1 {
                font-size: 2.2rem;
            }

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

            .feature-grid-alt {
                grid-template-columns: 1fr;
            }

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

            .data-highlight-grid {
                grid-template-columns: 1fr;
            }

            .scenario-block,
            .scenario-block.reverse {
                grid-template-columns: 1fr;
            }

            .scenario-block.reverse .scenario-image {
                order: 0;
            }

            .scenario-block.reverse .scenario-text {
                order: 0;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
                z-index: 999;
                gap: 4px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .nav-links li a.active::after {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-search input {
                width: 140px;
            }

            .nav-search input:focus {
                width: 160px;
            }

            .nav-login {
                display: none;
            }

            .hero-category {
                padding: 3rem 0 3.5rem;
            }

            .hero-category h1 {
                font-size: 1.8rem;
            }

            .hero-category .hero-desc {
                font-size: 1rem;
            }

            .hero-category .hero-stats-row {
                gap: 12px;
            }

            .hero-category .hero-stat {
                padding: 12px 14px;
                min-width: 70px;
            }

            .hero-category .hero-stat .stat-num {
                font-size: 1.3rem;
            }

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

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

            .process-step {
                padding: 14px 8px;
            }

            .process-step .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }

            .section {
                padding: 3rem 0;
            }

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

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

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

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

            .cta-section p {
                font-size: 1rem;
            }

            .btn-lg {
                padding: 12px 28px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .nav-search input {
                width: 100px;
                padding: 9px 10px 9px 30px;
                font-size: 0.8rem;
            }

            .nav-search input:focus {
                width: 120px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .hero-category h1 {
                font-size: 1.5rem;
            }

            .hero-category .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-category .hero-actions .btn {
                width: 100%;
                text-align: center;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .card {
                padding: 20px 16px;
            }

            .faq-item {
                padding: 16px 18px;
            }

            .faq-item h4 {
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.35rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1E5AAB;
            --primary-dark: #16488A;
            --primary-light: #3A7BD5;
            --secondary-bg: #F0F4FA;
            --deep-blue: #0A2A4A;
            --accent: #F5A623;
            --text-body: #1E293B;
            --text-secondary: #475569;
            --text-muted: #64748B;
            --white: #FFFFFF;
            --bg-light: #F8FAFC;
            --border: #E2E8F0;
            --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition: 0.2s ease;
            --nav-height: 64px;
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background: var(--white);
            overflow-x: hidden;
            min-width: 320px;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== NAVIGATION ========== */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            height: var(--nav-height);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
            display: flex;
            align-items: center;
        }

        .site-nav .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--deep-blue);
            white-space: nowrap;
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }

        .nav-brand i {
            color: var(--primary);
            font-size: 1.6rem;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
            justify-content: center;
        }

        .nav-links li a {
            display: block;
            padding: 8px 13px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 13px;
            right: 13px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            position: relative;
        }

        .nav-search input {
            width: 170px;
            padding: 9px 14px 9px 36px;
            border: 1px solid var(--border);
            border-radius: 24px;
            background: var(--bg-light);
            color: var(--text-body);
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }

        .nav-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 90, 171, 0.08);
            width: 210px;
            background: var(--white);
        }

        .nav-search i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-login {
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-login:hover {
            color: var(--primary);
            background: var(--secondary-bg);
        }

        .nav-cta {
            display: inline-block;
            padding: 10px 20px;
            background: var(--primary);
            color: var(--white) !important;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--white) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 90, 171, 0.3);
        }

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

        /* ========== HERO ========== */
        .hero-section {
            background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }

        .hero-section .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--secondary-bg);
            color: var(--primary);
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            margin-right: 6px;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.4;
            }
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--deep-blue);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.03em;
        }

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

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            line-height: 1.6;
        }

        .hero-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
            max-width: 480px;
        }

        .hero-group-count {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
            padding: 14px 18px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
            max-width: 420px;
        }

        .hero-group-count .count-avatars {
            display: flex;
            align-items: center;
        }

        .hero-group-count .count-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.8rem;
            border: 2px solid var(--white);
            margin-right: -8px;
        }

        .hero-group-count .count-avatar:nth-child(2) {
            background: #2E86C1;
        }
        .hero-group-count .count-avatar:nth-child(3) {
            background: #5DADE2;
        }
        .hero-group-count .count-avatar:nth-child(4) {
            background: #85C1E9;
        }

        .hero-group-count .count-text {
            font-weight: 600;
            color: var(--text-body);
            font-size: 0.9rem;
            margin-left: 6px;
        }

        .hero-group-count .count-text strong {
            color: var(--primary);
            font-size: 1.2rem;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            text-align: center;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 16px rgba(30, 90, 171, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 90, 171, 0.35);
        }

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

        .btn-outline:hover {
            background: var(--secondary-bg);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white);
            box-shadow: 0 4px 16px rgba(245, 166, 35, 0.3);
        }

        .btn-accent:hover {
            background: #E89614;
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.4);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--card-shadow-hover);
            height: 420px;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
        }

        .hero-visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 42, 74, 0.1) 0%, rgba(10, 42, 74, 0.55) 100%);
            border-radius: var(--radius-lg);
        }

        .hero-visual-badge {
            position: relative;
            z-index: 2;
            padding: 16px 20px;
            margin: 20px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            display: flex;
            align-items: center;
            gap: 12px;
            width: calc(100% - 40px);
        }

        .hero-visual-badge .live-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #EF4444;
            animation: pulse-dot 1.5s ease-in-out infinite;
            flex-shrink: 0;
        }

        .hero-visual-badge .live-text {
            font-weight: 600;
            color: var(--text-body);
            font-size: 0.9rem;
        }

        .hero-visual-badge .live-text small {
            display: block;
            color: var(--text-muted);
            font-weight: 400;
            font-size: 0.8rem;
        }

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

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

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

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: var(--secondary-bg);
            color: var(--primary);
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ========== INTEL CATEGORY CARDS ========== */
        .intel-cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .intel-cat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 20px 24px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border: 1px solid transparent;
            cursor: pointer;
        }

        .intel-cat-card:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--border);
        }

        .intel-cat-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.5rem;
            color: var(--white);
        }

        .intel-cat-icon.transfer {
            background: linear-gradient(135deg, #1E5AAB, #3A7BD5);
        }
        .intel-cat-icon.injury {
            background: linear-gradient(135deg, #E74C3C, #F1948A);
        }
        .intel-cat-icon.preview {
            background: linear-gradient(135deg, #27AE60, #58D68D);
        }
        .intel-cat-icon.lineup {
            background: linear-gradient(135deg, #8E44AD, #BB8FCE);
        }
        .intel-cat-icon.odds {
            background: linear-gradient(135deg, #F39C12, #F7DC6F);
        }

        .intel-cat-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
        }

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

        .intel-cat-card .cat-count {
            display: inline-block;
            margin-top: 8px;
            padding: 3px 10px;
            background: var(--secondary-bg);
            border-radius: 12px;
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* ========== INTEL LIST ========== */
        .intel-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .intel-item {
            display: grid;
            grid-template-columns: 100px 1fr 120px;
            gap: 20px;
            align-items: center;
            background: var(--white);
            padding: 20px 24px;
            border-radius: var(--radius);
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border-left: 4px solid transparent;
        }

        .intel-item:hover {
            box-shadow: var(--card-shadow-hover);
            transform: translateX(3px);
            border-left-color: var(--primary);
        }

        .intel-item-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
            text-align: center;
        }

        .intel-item-date .day {
            display: block;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }

        .intel-item-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }

        .tag-transfer {
            background: #EBF3FC;
            color: #1E5AAB;
        }
        .tag-injury {
            background: #FDEDEC;
            color: #C0392B;
        }
        .tag-preview {
            background: #E8F8F0;
            color: #1E8449;
        }
        .tag-lineup {
            background: #F4ECF7;
            color: #7D3C98;
        }
        .tag-odds {
            background: #FEF9E7;
            color: #B7950B;
        }
        .tag-tactics {
            background: #EBF5FB;
            color: #2471A3;
        }

        .intel-item-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 4px;
            line-height: 1.4;
        }

        .intel-item-summary {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin: 0;
        }

        .intel-item-action {
            text-align: right;
            white-space: nowrap;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-sm-primary {
            background: var(--primary);
            color: var(--white);
        }

        .btn-sm-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-1px);
        }

        .btn-sm-outline {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-sm-outline:hover {
            background: var(--secondary-bg);
            color: var(--primary-dark);
        }

        /* ========== FLOW SECTION ========== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .flow-step {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 22px 24px;
            text-align: center;
            box-shadow: var(--card-shadow);
            position: relative;
            transition: all var(--transition);
            border: 1px solid var(--border);
        }

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

        .flow-step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 14px;
        }

        .flow-step h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 6px;
        }

        .flow-step p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .flow-arrow {
            display: none;
        }

        /* ========== STATS SECTION ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--card-shadow);
            transition: all var(--transition);
            border-top: 4px solid var(--primary);
        }

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

        .stat-card .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

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

        .stat-card .stat-suffix {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* ========== SCENARIO SECTION ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .scenario-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--card-shadow);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition);
            border: 1px solid var(--border);
        }

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

        .scenario-icon {
            width: 54px;
            height: 54px;
            border-radius: var(--radius);
            background: var(--secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .scenario-info h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 4px;
        }

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

        .scenario-info ul {
            margin-top: 8px;
            padding: 0;
            list-style: none;
        }

        .scenario-info ul li {
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 3px 0;
            padding-left: 18px;
            position: relative;
        }

        .scenario-info ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: 700;
            font-size: 0.8rem;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-body);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            background: var(--white);
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }

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

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

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

        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1E5AAB 0%, #3A7BD5 100%);
            padding: 64px 0;
            text-align: center;
            color: var(--white);
        }

        .cta-section .section-title {
            color: var(--white);
            font-size: 2rem;
        }

        .cta-section .section-desc {
            color: rgba(255, 255, 255, 0.9);
        }

        .cta-section .btn {
            margin-top: 20px;
        }

        .btn-cta-large {
            padding: 16px 36px;
            font-size: 1.1rem;
            background: var(--white);
            color: var(--primary) !important;
            border-radius: var(--radius);
            font-weight: 700;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.3);
            background: #F0F4FA;
        }

        .cta-sub-action {
            margin-top: 16px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
        }

        .cta-sub-action a {
            color: var(--white);
            text-decoration: underline;
            font-weight: 600;
        }

        .cta-sub-action a:hover {
            color: #FFE0B2;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--deep-blue);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        }

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

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 14px;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--white);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.82rem;
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-section .container {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-visual {
                height: 300px;
                order: -1;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .intel-cat-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }

            .intel-item {
                grid-template-columns: 80px 1fr 90px;
                gap: 14px;
                padding: 16px 18px;
            }

            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 16px;
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border);
                z-index: 999;
                gap: 2px;
            }

            .nav-links.show {
                display: flex;
            }

            .nav-links li a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-toggle {
                display: block;
            }

            .nav-search input {
                width: 130px;
            }

            .nav-search input:focus {
                width: 160px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 0.82rem;
            }

            .nav-login {
                font-size: 0.82rem;
                padding: 4px 8px;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-visual {
                height: 240px;
            }

            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }

            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }

            .intel-cat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .intel-item {
                grid-template-columns: 1fr;
                gap: 8px;
                text-align: center;
                border-left: none;
                border-top: 4px solid transparent;
                padding: 16px;
            }

            .intel-item:hover {
                border-top-color: var(--primary);
                border-left-color: transparent;
            }

            .intel-item-date {
                text-align: center;
            }

            .intel-item-action {
                text-align: center;
            }

            .flow-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

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

            .stat-card .stat-number {
                font-size: 2rem;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .section {
                padding: 40px 0;
            }

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

            .hero-group-count {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

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

            .hero-visual {
                height: 200px;
            }

            .intel-cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .intel-cat-card {
                padding: 20px 14px 18px;
            }

            .intel-cat-card h3 {
                font-size: 0.95rem;
            }

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

            .nav-search input {
                width: 100px;
                font-size: 0.8rem;
            }

            .nav-search input:focus {
                width: 130px;
            }

            .nav-brand {
                font-size: 1.2rem;
            }

            .nav-brand i {
                font-size: 1.3rem;
            }

            .scenario-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .scenario-info ul li {
                text-align: left;
            }

            .btn {
                padding: 12px 20px;
                font-size: 0.9rem;
            }

            .btn-cta-large {
                padding: 14px 24px;
                font-size: 1rem;
                width: 100%;
                justify-content: center;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
        }