/* roulang page: index */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }
        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-top: 0;
        }
        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.25rem;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .section-header {
            margin-bottom: 2.5rem;
        }
        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }
        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }
        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }
        .sidebar-nav-list li {
            margin: 0;
        }
        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.4);
        }
        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.3);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }
        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            flex-shrink: 0;
            line-height: 1.5;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--sidebar-width));
            transition: margin-left var(--transition-slow), width var(--transition-slow);
        }

        /* Mobile Top Bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            color: #fff;
            z-index: 1040;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .mobile-topbar .hamburger-btn {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            cursor: pointer;
            flex-shrink: 0;
        }
        .mobile-topbar .mobile-logo {
            font-weight: 700;
            font-size: 1.15rem;
            flex: 1;
            text-align: center;
            font-family: var(--font-heading);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1045;
            transition: opacity var(--transition-normal);
        }
        .sidebar-overlay.show {
            display: block;
        }

        /* ========== SECTION BASE ========== */
        section {
            padding: 60px 0;
            position: relative;
        }
        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .section-container-wide {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .section-container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 40%, #1a3d6d 70%, #0f172a 100%);
            color: #ffffff;
            padding: 70px 0 60px;
            position: relative;
            overflow: hidden;
            min-height: 500px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-content-wrapper {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fbbf24;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .hero-main-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-xl);
            padding: 36px 32px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-xl);
            max-width: 620px;
        }
        .hero-main-card h1 {
            color: #ffffff;
            font-size: 2.4rem;
            margin-bottom: 0.8rem;
            line-height: 1.25;
        }
        .hero-main-card .hero-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .hero-feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 1.5rem;
        }
        .hero-feature-tag {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 7px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #e2e8f0;
            font-weight: 500;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn-hero-primary {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 13px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.4);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-primary:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.5);
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 12px 26px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .hero-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 22px;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            text-align: left;
        }
        .hero-stat-num {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fbbf24;
            line-height: 1;
        }
        .hero-stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ========== CARDS & COMPONENTS ========== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-medium);
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom .card-icon.blue {
            background: #dbeafe;
            color: #1a56db;
        }
        .card-custom .card-icon.green {
            background: #dcfce7;
            color: #16a34a;
        }
        .card-custom .card-icon.amber {
            background: #fef3c7;
            color: #d97706;
        }
        .card-custom .card-icon.red {
            background: #fee2e2;
            color: #dc2626;
        }
        .card-custom .card-icon.purple {
            background: #ede9fe;
            color: #7c3aed;
        }
        .card-custom h4 {
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
            color: var(--brand-dark);
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.65;
            margin-bottom: 0;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            border: none;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-custom-primary {
            background: var(--brand-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
        }
        .btn-custom-primary:hover {
            background: #1d4ed8;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(26, 86, 219, 0.4);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
        }
        .btn-custom-outline:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-custom-accent {
            background: var(--brand-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
        }
        .btn-custom-accent:hover {
            background: var(--brand-accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(245, 158, 11, 0.4);
        }

        .badge-tag {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-tag.hot {
            background: #fee2e2;
            color: #dc2626;
        }
        .badge-tag.new {
            background: #dbeafe;
            color: #1a56db;
        }
        .badge-tag.limited {
            background: #fef3c7;
            color: #b45309;
        }

        /* ========== FESTIVAL CAMPAIGN ========== */
        .festival-section {
            background: linear-gradient(135deg, #fef3c7 0%, #fff7ed 30%, #fef2f2 70%, #fef3c7 100%);
            border-top: 3px solid var(--brand-accent);
            border-bottom: 3px solid var(--brand-accent);
            padding: 50px 0;
        }
        .festival-card {
            background: #fff;
            border: 2px solid #fbbf24;
            border-radius: var(--radius-xl);
            padding: 32px 28px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .festival-card::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .festival-ribbon {
            display: inline-block;
            background: #dc2626;
            color: #fff;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        /* ========== HOT LIST ========== */
        .hotlist-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .hotlist-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-medium);
            transform: translateX(4px);
        }
        .hotlist-rank {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
            color: #fff;
        }
        .hotlist-rank.rank-1 {
            background: #f59e0b;
        }
        .hotlist-rank.rank-2 {
            background: #94a3b8;
        }
        .hotlist-rank.rank-3 {
            background: #b45309;
        }
        .hotlist-rank.rank-normal {
            background: #64748b;
        }
        .hotlist-info {
            flex: 1;
            min-width: 0;
        }
        .hotlist-info h5 {
            font-size: 0.95rem;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hotlist-info span {
            font-size: 0.8rem;
            color: var(--text-weak);
        }
        .hotlist-meta {
            font-size: 0.85rem;
            color: var(--text-weak);
            flex-shrink: 0;
            font-weight: 500;
        }

        /* ========== CHANGELOG ========== */
        .changelog-item {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .changelog-item:last-child {
            border-bottom: none;
        }
        .changelog-date {
            flex-shrink: 0;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .changelog-content h5 {
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--brand-dark);
        }
        .changelog-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== NEWS SECTION ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }
        .news-list-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            gap: 14px;
            align-items: baseline;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-date-tag {
            flex-shrink: 0;
            font-size: 0.82rem;
            color: var(--text-weak);
            font-weight: 500;
            white-space: nowrap;
            min-width: 70px;
        }
        .news-list-item h5 {
            font-size: 0.98rem;
            margin-bottom: 3px;
            line-height: 1.4;
        }
        .news-list-item h5 a {
            color: var(--brand-dark);
            transition: color var(--transition-fast);
        }
        .news-list-item h5 a:hover {
            color: var(--brand-primary);
        }
        .news-list-item .news-summary {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin-bottom: 0;
        }
        .news-sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-md);
            position: sticky;
            top: 20px;
        }
        .news-sidebar-card h4 {
            font-size: 1.1rem;
            margin-bottom: 14px;
            color: var(--brand-dark);
            border-bottom: 2px solid var(--brand-primary-light);
            padding-bottom: 10px;
        }
        .news-sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-sidebar-card ul li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-light);
            font-size: 0.9rem;
        }
        .news-sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .news-sidebar-card ul li a {
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .news-sidebar-card ul li a:hover {
            color: var(--brand-primary);
        }
        .news-sidebar-card ul li .hot-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #dc2626;
            margin-right: 6px;
            vertical-align: middle;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            background: var(--bg-card);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: #f8fafc;
        }
        .faq-question .faq-icon {
            transition: transform var(--transition-normal);
            font-size: 0.85rem;
            color: var(--text-weak);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, #1a56db 0%, #1e40af 100%);
            color: #fff;
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            box-shadow: var(--shadow-xl);
        }
        .cta-banner h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 0.6rem;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto 1.5rem;
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 24px;
            margin-top: auto;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            justify-content: center;
            margin-bottom: 20px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            line-height: 2;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1199px) {
            .section-container,
            .section-container-wide,
            .section-container-narrow {
                padding: 0 24px;
            }
            .hero-main-card {
                max-width: 520px;
            }
            .hero-main-card h1 {
                font-size: 2rem;
            }
            .news-layout {
                grid-template-columns: 1fr 280px;
                gap: 24px;
            }
        }

        @media (max-width: 991px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay.show {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                width: 100%;
                padding-top: var(--topbar-height);
            }
            .hero-section {
                padding: 40px 0 36px;
                min-height: auto;
            }
            .hero-main-card {
                max-width: 100%;
                padding: 24px 20px;
            }
            .hero-main-card h1 {
                font-size: 1.7rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 1.4rem;
            }
            section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.55rem;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar-card {
                position: static;
            }
            .cta-banner {
                padding: 28px 20px;
            }
            .cta-banner h2 {
                font-size: 1.4rem;
            }
            .festival-card {
                padding: 20px 16px;
            }
        }

        @media (max-width: 767px) {
            .hero-main-card h1 {
                font-size: 1.4rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                justify-content: center;
                text-align: center;
            }
            .hero-stats-row {
                flex-wrap: wrap;
                gap: 12px;
            }
            .hero-stat-num {
                font-size: 1.2rem;
            }
            section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-container,
            .section-container-wide,
            .section-container-narrow {
                padding: 0 16px;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .hotlist-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .changelog-item {
                flex-direction: column;
                gap: 8px;
            }
            .site-footer .footer-links {
                gap: 14px;
                font-size: 0.82rem;
            }
        }

        @media (max-width: 520px) {
            .hero-main-card {
                padding: 18px 14px;
                border-radius: var(--radius-md);
            }
            .hero-main-card h1 {
                font-size: 1.2rem;
            }
            .hero-feature-tags {
                gap: 6px;
            }
            .hero-feature-tag {
                font-size: 0.75rem;
                padding: 5px 10px;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 4px 12px;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .section-title::after {
                width: 40px;
                height: 3px;
            }
            .btn-custom {
                padding: 10px 18px;
                font-size: 0.88rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }

        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }

        .sidebar-nav-list li {
            margin: 0;
        }

        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }

        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.3);
        }

        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.3);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }

        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            flex-shrink: 0;
            line-height: 1.5;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-slow);
            width: calc(100% - var(--sidebar-width));
        }

        /* ========== MOBILE TOPBAR ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            z-index: 1040;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
            font-family: var(--font-heading);
        }

        .mobile-topbar .mobile-logo .logo-icon-sm {
            width: 34px;
            height: 34px;
            background: var(--brand-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
        }

        .mobile-topbar .menu-toggle {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .mobile-topbar .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ========== SIDEBAR OVERLAY ========== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .sidebar-overlay.active {
            display: block;
            opacity: 1;
        }

        /* ========== SECTION CONTAINER ========== */
        .section-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 64px 0;
        }

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

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 40%, #1a3a6e 100%);
            color: #fff;
            padding: 80px 0 90px;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-pain-point {
            font-size: 1.1rem;
            color: var(--brand-accent);
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            font-family: var(--font-heading);
            color: #fff;
        }

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

        .hero-desc {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-form-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-xl);
            color: var(--text-primary);
            position: relative;
            z-index: 3;
        }

        .hero-form-card .form-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 6px;
        }

        .hero-form-card .form-subtitle {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-bottom: 18px;
        }

        .hero-form-card .form-control {
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--border-medium);
            padding: 12px 16px;
            font-size: 0.95rem;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            font-family: var(--font-body);
        }

        .hero-form-card .form-control:focus {
            border-color: var(--brand-primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
            outline: none;
        }

        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            font-family: var(--font-body);
        }

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

        .btn-accent {
            background: var(--brand-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            font-family: var(--font-body);
        }

        .btn-accent:hover {
            background: var(--brand-accent-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
        }

        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            font-family: var(--font-body);
        }

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

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--brand-primary-light);
        }

        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-custom .card-icon.accent {
            background: #fef3c7;
            color: var(--brand-accent);
        }

        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }

        .card-custom p {
            font-size: 0.93rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.65;
        }

        /* ========== STATS BLOCK ========== */
        .stats-block {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }

        .stat-item {
            text-align: center;
            padding: 20px 28px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            min-width: 150px;
            flex: 1;
            border: 1px solid var(--border-light);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-primary);
            font-family: var(--font-heading);
            line-height: 1.1;
        }

        .stat-number.accent {
            color: var(--brand-accent);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

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

        .process-step {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

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

        .process-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            flex-shrink: 0;
        }

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

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

        /* ========== FAQ ========== */
        .faq-list .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
        }

        .faq-list .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-dark);
            background: var(--bg-card);
            padding: 16px 20px;
            border-radius: var(--radius-md);
            box-shadow: none;
            font-family: var(--font-body);
        }

        .faq-list .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            box-shadow: none;
        }

        .faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12);
            border-color: var(--brand-primary);
        }

        .faq-list .accordion-body {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 16px 20px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--brand-primary);
            color: #fff;
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-accent {
            position: relative;
            z-index: 1;
            font-size: 1.05rem;
            padding: 14px 36px;
            border-radius: var(--radius-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 28px;
            flex-shrink: 0;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 20px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

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

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1199px) {
            .hero-section .hero-inner {
                gap: 32px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
                width: 100%;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--topbar-height);
            }
            .hero-section .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-section {
                padding: 48px 0 56px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-lg {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stats-block {
                gap: 16px;
            }
            .stat-item {
                min-width: 120px;
                padding: 16px 18px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
        }

        @media (max-width: 767px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-form-card {
                padding: 24px 18px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .stats-block {
                flex-direction: column;
                gap: 12px;
            }
            .stat-item {
                min-width: auto;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .section-padding {
                padding: 36px 0;
            }
            .section-padding-lg {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .footer-links {
                gap: 12px;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .hero-section {
                padding: 36px 0 44px;
            }
            .hero-pain-point {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-form-card .form-title {
                font-size: 1.1rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .section-container {
                padding: 0 14px;
            }
            .btn-brand,
            .btn-accent,
            .btn-outline-white {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
            .hero-form-card {
                padding: 20px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }
        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
            font-family: var(--font-heading);
        }
        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .section-header {
            margin-bottom: 2.5rem;
        }
        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }
        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }
        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }
        .sidebar-nav-list li {
            margin: 0;
        }
        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
        }
        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: var(--brand-accent);
        }
        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.3);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }
        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
        }
        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
            flex-shrink: 0;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-slow);
        }

        /* ========== MOBILE TOP BAR ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            z-index: 1040;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .mobile-topbar .hamburger-btn {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.4rem;
            padding: 8px;
            margin-right: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }
        .mobile-topbar .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-topbar .mobile-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-topbar .mobile-logo .logo-icon-sm {
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
            color: #fff;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1045;
            transition: opacity var(--transition-normal);
        }
        .sidebar-overlay.active {
            display: block;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, #f0f4ff 0%, #e8f0fe 30%, #f8fafc 70%, #ffffff 100%);
            padding: 60px 0 50px;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -180px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-dark);
            line-height: 1.25;
            font-family: var(--font-heading);
            letter-spacing: -0.015em;
        }
        .hero-desc {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-top: 12px;
        }
        .hero-value-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 14px;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .hero-value-item .value-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.85rem;
            margin-top: 1px;
        }
        .hero-screenshot-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xl);
            background: #fff;
            border: 1px solid var(--border-light);
        }
        .hero-screenshot-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }
        .hero-screenshot-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
            pointer-events: none;
        }
        .hero-btn-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-hero-primary:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.4);
        }
        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: #ffffff;
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 1rem;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            border: 2px solid var(--brand-primary);
            transition: all var(--transition-normal);
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-hero-outline:hover {
            background: var(--brand-primary-light);
            color: var(--brand-primary-hover);
            border-color: var(--brand-primary-hover);
            transform: translateY(-2px);
        }

        /* ========== STATS SECTION ========== */
        .stats-section {
            padding: 40px 0;
            background: #fff;
            border-bottom: 1px solid var(--border-light);
        }
        .stat-card {
            text-align: center;
            padding: 20px 16px;
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            background: var(--bg-section-alt);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-primary);
            font-family: var(--font-heading);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ========== FEATURES SECTION ========== */
        .features-section {
            padding: 60px 0;
            background: var(--bg-section-alt);
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--brand-primary-light);
        }
        .feature-card .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .feature-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== LEAGUES SECTION ========== */
        .leagues-section {
            padding: 60px 0;
            background: #fff;
        }
        .league-card {
            text-align: center;
            padding: 22px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            cursor: default;
        }
        .league-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
            transform: translateY(-3px);
        }
        .league-card .league-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            margin: 0 auto 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
        }
        .league-card h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 4px;
        }
        .league-card .league-meta {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* ========== PROCESS SECTION ========== */
        .process-section {
            padding: 60px 0;
            background: var(--bg-section-alt);
        }
        .process-step {
            position: relative;
            text-align: center;
            padding: 20px 16px;
        }
        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .process-step h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.55;
        }
        .process-connector {
            position: absolute;
            top: 44px;
            left: calc(50% + 40px);
            width: calc(100% - 80px);
            height: 2px;
            background: var(--border-medium);
            z-index: 1;
        }

        /* ========== TESTIMONIALS SECTION ========== */
        .testimonials-section {
            padding: 60px 0;
            background: #fff;
        }
        .testimonial-card {
            background: var(--bg-section-alt);
            border-radius: var(--radius-lg);
            padding: 26px 22px;
            border: 1px solid var(--border-light);
            height: 100%;
            transition: all var(--transition-normal);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-primary-light);
        }
        .testimonial-card .quote-icon {
            color: var(--brand-primary-light);
            font-size: 1.6rem;
            margin-bottom: 10px;
        }
        .testimonial-card .quote-text {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            font-style: italic;
        }
        .testimonial-card .quote-author {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--brand-dark);
        }
        .testimonial-card .quote-role {
            font-size: 0.78rem;
            color: var(--text-weak);
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-section-alt);
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--brand-dark);
            padding: 16px 20px;
            background: #fff;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
            border-color: var(--brand-primary);
        }
        .faq-accordion .accordion-body {
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.75;
            padding: 16px 20px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 56px 0;
            background: var(--brand-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.3) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-title {
            font-size: 2rem;
            font-weight: 800;
            color: #ffffff;
            font-family: var(--font-heading);
            position: relative;
            z-index: 1;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .btn-cta-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            border: none;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
            text-decoration: none;
            position: relative;
            z-index: 1;
        }
        .btn-cta-white:hover {
            background: #f0f4ff;
            color: var(--brand-primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
        }
        .btn-cta-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-normal);
            text-decoration: none;
            position: relative;
            z-index: 1;
        }
        .btn-cta-outline-light:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            transform: translateY(-3px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark-secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 32px 0 20px;
            font-size: 0.88rem;
            flex-shrink: 0;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-bottom: 16px;
            justify-content: center;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: #ffffff;
        }
        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 14px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }
        .site-footer .footer-divider a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }
        .site-footer .footer-divider a:hover {
            color: #ffffff;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1199px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 991px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0 !important;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--topbar-height);
            }
            .hero-section {
                padding: 36px 0 30px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .process-connector {
                display: none;
            }
            .cta-title {
                font-size: 1.5rem;
            }
            .hero-screenshot-wrap {
                margin-top: 20px;
                margin-bottom: 20px;
            }
            .hero-btn-group {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                font-size: 0.9rem;
                padding: 10px 20px;
            }
        }
        @media (max-width: 767px) {
            .hero-title {
                font-size: 1.55rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .hero-value-item {
                font-size: 0.85rem;
                gap: 8px;
            }
            .hero-value-item .value-icon {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
            .feature-card {
                padding: 20px 16px;
            }
            .cta-title {
                font-size: 1.3rem;
            }
            .btn-hero-primary,
            .btn-hero-outline,
            .btn-cta-white,
            .btn-cta-outline-light {
                font-size: 0.85rem;
                padding: 10px 18px;
            }
            .site-footer .footer-links {
                gap: 10px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.3rem;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .hero-btn-group {
                flex-direction: column;
                width: 100%;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
            }
            .sidebar-nav {
                width: 85vw;
                max-width: 280px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--brand-dark);
            line-height: 1.35;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }

        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }

        .sidebar-nav-list li {
            margin: 0;
        }

        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }

        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.3);
        }

        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.35);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }

        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.5;
            flex-shrink: 0;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-slow);
        }

        /* ========== MOBILE TOGGLE ========== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 1060;
            width: 42px;
            height: 42px;
            background: var(--brand-dark);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.25rem;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: var(--brand-dark-secondary);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
        }

        .sidebar-overlay.show {
            display: block;
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(30, 41, 59, 0.82) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 60px 0;
            color: #ffffff;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 350px;
            height: 350px;
            background: rgba(26, 86, 219, 0.15);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            background: rgba(245, 158, 11, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 600;
            color: #ffffff;
            letter-spacing: 0.01em;
        }

        .hero-badge i {
            color: var(--brand-accent);
            font-size: 0.85rem;
        }

        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 1rem;
            line-height: 1.25;
            letter-spacing: -0.02em;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .hero-qualification {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            margin-bottom: 1.8rem;
            max-width: 560px;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.6;
        }

        .hero-qualification strong {
            color: #ffffff;
            font-weight: 700;
        }

        .hero-qualification i {
            color: var(--brand-accent);
            margin-right: 6px;
        }

        .hero-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            transition: all var(--transition-normal);
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            text-decoration: none;
        }

        .hero-btn:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(26, 86, 219, 0.55);
        }

        .hero-btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            transition: all var(--transition-normal);
            text-decoration: none;
            margin-left: 12px;
        }

        .hero-btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #ffffff;
            color: #fff;
        }

        /* ========== SECTION CONTAINER ========== */
        .section-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-spacing {
            padding: 70px 0;
        }

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

        /* ========== CARDS ========== */
        .info-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
        }

        .info-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--brand-primary-light);
        }

        .info-card .card-icon {
            width: 52px;
            height: 52px;
            background: var(--brand-primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--brand-primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

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

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

        /* ========== STATS ========== */
        .stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
        }

        .stat-item {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            min-width: 140px;
            flex: 1 1 160px;
            transition: all var(--transition-normal);
        }

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

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1.1;
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }

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

        /* ========== NEWS CARDS ========== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .news-card-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }

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

        .news-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-card-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }

        .news-card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-primary);
            transition: all var(--transition-fast);
            text-decoration: none;
        }

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

        /* ========== FEATURE LIST ========== */
        .feature-list-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
        }

        .feature-list-item:last-child {
            border-bottom: none;
        }

        .feature-list-icon {
            width: 44px;
            height: 44px;
            background: var(--brand-primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--brand-primary);
            font-size: 1.1rem;
        }

        .feature-list-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--brand-dark);
        }

        .feature-list-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== PLAN CARDS ========== */
        .plan-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            text-align: center;
            position: relative;
        }

        .plan-card.featured {
            border-color: var(--brand-primary);
            box-shadow: var(--shadow-lg);
            background: #ffffff;
        }

        .plan-card.featured::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--brand-accent);
            color: #fff;
            padding: 5px 18px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

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

        .plan-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 12px;
        }

        .plan-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            margin-bottom: 16px;
        }

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

        .plan-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            text-align: left;
        }

        .plan-features li {
            padding: 7px 0;
            font-size: 0.9rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .plan-features li i.fa-check {
            color: #10b981;
            font-size: 0.85rem;
        }

        .plan-btn {
            display: inline-block;
            width: 100%;
            padding: 12px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-normal);
            text-decoration: none;
            border: 2px solid var(--brand-primary);
            background: var(--brand-primary);
            color: #fff;
        }

        .plan-btn:hover {
            background: var(--brand-primary-hover);
            border-color: var(--brand-primary-hover);
            color: #fff;
        }

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

        .plan-btn-outline:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 22px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-fast);
        }

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

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

        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-dark-secondary) 100%);
            color: #ffffff;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: rgba(26, 86, 219, 0.2);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #ffffff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            color: var(--brand-primary);
            padding: 14px 34px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
        }

        .cta-btn:hover {
            background: var(--brand-accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 30px;
            margin-top: auto;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            justify-content: center;
            margin-bottom: 20px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

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

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }

            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-toggle {
                display: flex;
            }

            .hero-title {
                font-size: 2rem;
            }

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

            .section-title {
                font-size: 1.6rem;
            }

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

            .hero-section {
                min-height: 420px;
                padding: 50px 0;
            }

            .hero-btn-secondary {
                margin-left: 0;
                margin-top: 10px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.7rem;
            }

            .hero-badges {
                gap: 6px;
            }

            .hero-badge {
                font-size: 0.78rem;
                padding: 6px 12px;
            }

            .section-title {
                font-size: 1.4rem;
            }

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

            .stats-row {
                gap: 12px;
            }

            .stat-item {
                min-width: 120px;
                padding: 20px 14px;
            }

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

            .news-card-img {
                height: 160px;
            }

            .plan-card {
                margin-bottom: 16px;
            }

            .hero-section {
                min-height: 380px;
                padding: 40px 0;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }

            .hero-subtitle {
                font-size: 0.9rem;
            }

            .hero-badge {
                font-size: 0.72rem;
                padding: 5px 10px;
            }

            .section-title {
                font-size: 1.25rem;
            }

            .section-spacing {
                padding: 32px 0;
            }

            .hero-btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }

            .hero-btn-secondary {
                padding: 10px 22px;
                font-size: 0.9rem;
            }

            .footer-links {
                gap: 10px;
                font-size: 0.8rem;
            }

            .hero-section {
                min-height: 340px;
                padding: 30px 0;
            }

            .hero-qualification {
                padding: 12px 14px;
                font-size: 0.85rem;
            }
        }

        /* ========== UTILITY ========== */
        .text-accent {
            color: var(--brand-accent);
        }

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

        .bg-white-section {
            background: #ffffff;
        }

        .img-rounded {
            border-radius: var(--radius-lg);
        }

        .img-shadow {
            box-shadow: var(--shadow-lg);
        }

/* roulang page: category5 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }

        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }

        .sidebar-nav-list li {
            margin: 0;
        }

        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 20px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            position: relative;
        }

        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.3);
            text-decoration: none;
        }

        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.3);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
            line-height: 1.5;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--bg-page);
        }

        /* ========== MOBILE TOPBAR ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            z-index: 1049;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.15rem;
            font-family: var(--font-heading);
        }

        .mobile-topbar .mobile-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
        }

        .mobile-menu-toggle {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1048;
            transition: opacity var(--transition-normal);
        }

        /* ========== SECTION CONTAINER ========== */
        .section-container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-spacing {
            padding: 60px 0;
        }

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

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 40%, #1a4b8c 100%);
            color: #ffffff;
            padding: 70px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }

        .hero-section .hero-text {
            flex: 1;
            min-width: 280px;
        }

        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fde68a;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .hero-section h1 {
            font-size: 2.6rem;
            font-weight: 800;
            font-family: var(--font-heading);
            margin-bottom: 16px;
            line-height: 1.25;
            color: #ffffff;
            letter-spacing: -0.01em;
        }

        .hero-section .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 520px;
            line-height: 1.7;
        }

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

        .btn-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.45);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-outline-light-custom:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .hero-section .hero-visual {
            flex: 1;
            min-width: 280px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.12);
            padding: 28px 24px;
            backdrop-filter: blur(4px);
        }

        .hero-visual .team-quick-search {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px;
            color: var(--text-primary);
            box-shadow: var(--shadow-lg);
        }

        .team-quick-search .search-label {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .team-quick-search .search-input-wrap {
            display: flex;
            gap: 8px;
            margin-bottom: 14px;
        }

        .team-quick-search .search-input-wrap input {
            flex: 1;
            padding: 10px 14px;
            border: 2px solid var(--border-medium);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: border-color var(--transition-fast);
            outline: none;
        }

        .team-quick-search .search-input-wrap input:focus {
            border-color: var(--brand-primary);
        }

        .team-quick-search .search-input-wrap .btn-search {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: background var(--transition-fast);
            white-space: nowrap;
        }

        .team-quick-search .search-input-wrap .btn-search:hover {
            background: var(--brand-primary-hover);
        }

        .team-quick-search .hot-teams {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .team-quick-search .hot-teams span {
            font-size: 0.78rem;
            color: var(--text-weak);
            margin-right: 4px;
            line-height: 2;
        }

        .team-quick-search .hot-teams .team-tag {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .team-quick-search .hot-teams .team-tag:hover {
            background: var(--brand-primary);
            color: #fff;
            border-color: var(--brand-primary);
        }

        /* ========== CARD STYLES ========== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
            position: relative;
        }

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

        .card-custom .card-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-custom .card-icon-circle.blue {
            background: var(--brand-primary-light);
            color: var(--brand-primary);
        }

        .card-custom .card-icon-circle.amber {
            background: #fef3c7;
            color: #d97706;
        }

        .card-custom .card-icon-circle.green {
            background: #d1fae5;
            color: #059669;
        }

        .card-custom .card-icon-circle.red {
            background: #fee2e2;
            color: #dc2626;
        }

        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }

        .card-custom p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== TEAM CARD ========== */
        .team-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            height: 100%;
        }

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

        .team-card .team-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .team-card .team-card-img .team-badge-overlay {
            position: absolute;
            bottom: -28px;
            left: 20px;
            width: 56px;
            height: 56px;
            background: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--brand-primary);
            border: 3px solid #fff;
        }

        .team-card .team-card-body {
            padding: 36px 20px 20px;
        }

        .team-card .team-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 4px;
        }

        .team-card .team-card-body .team-league {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-bottom: 10px;
        }

        .team-card .team-card-body .team-stats-row {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .team-card .team-card-body .team-stats-row span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ========== STAT BLOCK ========== */
        .stat-block {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

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

        .stat-block .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--brand-primary);
            font-family: var(--font-heading);
            line-height: 1.2;
        }

        .stat-block .stat-label {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* ========== FLOW STEPS ========== */
        .flow-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            position: relative;
        }

        .flow-step:last-child {
            border-bottom: none;
        }

        .flow-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .flow-step .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 4px;
        }

        .flow-step .step-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

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

        .faq-item .faq-question:hover {
            background: var(--bg-section-alt);
        }

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

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

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

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-dark) 0%, #1e3a5f 100%);
            color: #ffffff;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand-accent);
            color: #1e293b;
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 22px rgba(245, 158, 11, 0.35);
            text-decoration: none;
            position: relative;
            z-index: 1;
        }

        .btn-cta:hover {
            background: var(--brand-accent-hover);
            color: #1e293b;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
            text-decoration: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0 30px;
            margin-top: auto;
        }

        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            margin-bottom: 20px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .site-footer .footer-links a:hover {
            color: #ffffff;
            text-decoration: none;
        }

        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
        }

        .site-footer .footer-divider a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

        .site-footer .footer-divider a:hover {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--topbar-height);
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .hero-section .hero-inner {
                flex-direction: column;
                gap: 32px;
            }
            .section-spacing {
                padding: 44px 0;
            }
            .section-spacing-lg {
                padding: 56px 0;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 44px 0 50px;
            }
            .hero-section h1 {
                font-size: 1.65rem;
            }
            .hero-section .hero-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-container {
                padding: 0 16px;
            }
            .team-card .team-card-img {
                height: 140px;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .stat-block .stat-number {
                font-size: 1.7rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .flow-step {
                gap: 14px;
            }
            .flow-step .step-number {
                width: 40px;
                height: 40px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.4rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
            }
            .hero-section .hero-actions .btn-brand,
            .hero-section .hero-actions .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .team-quick-search .search-input-wrap {
                flex-direction: column;
            }
            .team-quick-search .search-input-wrap .btn-search {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .site-footer .footer-links {
                gap: 12px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category4 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }

        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }

        .sidebar-nav-list li {
            margin: 0;
        }

        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }

        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.35);
        }

        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.3);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }

        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
            flex-shrink: 0;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--bg-page);
            transition: margin-left var(--transition-slow);
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
            width: 100%;
        }

        .section-padding {
            padding: 64px 0;
        }

        .section-padding-sm {
            padding: 48px 0;
        }

        /* ========== MOBILE TOP BAR ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            z-index: 1040;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-topbar .hamburger-btn {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.4rem;
            padding: 6px;
            cursor: pointer;
            flex-shrink: 0;
        }

        .mobile-topbar .mobile-logo {
            font-size: 1.15rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            margin-left: 10px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1045;
        }

        .sidebar-overlay.show {
            display: block;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(135deg, #ffffff 0%, #eef2ff 40%, #dbeafe 100%);
            padding: 60px 0 64px;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .hero-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-dark);
            font-family: var(--font-heading);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

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

        .hero-desc {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 480px;
        }

        .hero-cta-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.3);
        }

        .btn-brand:hover {
            background: var(--brand-primary-hover);
            color: #fff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
            transform: translateY(-1px);
        }

        .btn-outline-brand {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            padding: 11px 26px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-brand:hover {
            background: var(--brand-primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.25);
        }

        .hero-visual-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            box-shadow: var(--shadow-xl);
            position: relative;
        }

        .reward-tier {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border: 1.5px solid transparent;
            background: #f8fafc;
        }

        .reward-tier.unlocked {
            background: #f0fdf4;
            border-color: #22c55e;
            color: #166534;
        }

        .reward-tier.current {
            background: #eff6ff;
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            font-weight: 600;
        }

        .reward-tier.locked {
            color: var(--text-muted);
            background: #f8fafc;
        }

        .reward-tier .tier-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            background: #e2e8f0;
            color: #64748b;
        }

        .reward-tier.unlocked .tier-icon {
            background: #22c55e;
            color: #fff;
        }

        .reward-tier.current .tier-icon {
            background: var(--brand-primary);
            color: #fff;
        }

        .progress-wrap {
            margin-top: 16px;
        }

        .progress-label-row {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .progress {
            height: 10px;
            border-radius: 10px;
            background: #e2e8f0;
            overflow: hidden;
        }

        .progress-bar {
            background: linear-gradient(90deg, var(--brand-primary), #3b82f6);
            border-radius: 10px;
            transition: width 0.6s ease;
            font-size: 0;
        }

        .share-link-row {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            align-items: center;
        }

        .share-link-input {
            flex: 1;
            padding: 10px 14px;
            border: 1.5px solid var(--border-medium);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            color: var(--text-secondary);
            background: #f8fafc;
            font-family: var(--font-body);
        }

        .btn-copy {
            background: var(--brand-dark);
            color: #fff;
            border: none;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-copy:hover {
            background: #1e293b;
            box-shadow: var(--shadow-md);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
        }

        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--brand-primary-light);
        }

        .card-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .card-icon-circle.blue {
            background: #dbeafe;
            color: #1a56db;
        }

        .card-icon-circle.green {
            background: #dcfce7;
            color: #16a34a;
        }

        .card-icon-circle.amber {
            background: #fef3c7;
            color: #d97706;
        }

        .card-icon-circle.purple {
            background: #ede9fe;
            color: #7c3aed;
        }

        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

        .card-custom p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ========== STATS / DATA ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

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

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-primary);
            font-family: var(--font-heading);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 4px;
            font-weight: 500;
        }

        /* ========== PROCESS / STEPS ========== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--brand-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 6px;
            font-family: var(--font-heading);
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== FEATURED CARDS ========== */
        .featured-card {
            background: #fff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            height: 100%;
        }

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

        .featured-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .featured-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .featured-card-body {
            padding: 20px 18px;
        }

        .featured-tag {
            display: inline-block;
            background: #fef3c7;
            color: #b45309;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 14px;
            margin-bottom: 10px;
        }

        .featured-card-body h4 {
            font-size: 1.08rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

        .featured-card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .featured-card-body .meta-row {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-top: 10px;
        }

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

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

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

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

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

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

        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--brand-dark);
            padding: 56px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 86, 219, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            background: var(--brand-accent);
            color: #1e293b;
            border: none;
            padding: 14px 36px;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 6px 22px rgba(245, 158, 11, 0.35);
        }

        .btn-cta-large:hover {
            background: var(--brand-accent-hover);
            box-shadow: 0 10px 28px rgba(245, 158, 11, 0.45);
            transform: translateY(-2px);
            color: #1e293b;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0c1322;
            color: rgba(255, 255, 255, 0.7);
            padding: 36px 0 28px;
            font-size: 0.88rem;
            margin-top: auto;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
            justify-content: center;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            transition: color var(--transition-fast);
            font-size: 0.9rem;
        }

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

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 16px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
        }

        .footer-divider a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-divider a:hover {
            color: #ffffff;
        }

        /* ========== TABLE SECTION ========== */
        .table-custom {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .table-custom table {
            margin-bottom: 0;
            width: 100%;
        }

        .table-custom thead th {
            background: #f8fafc;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--brand-dark);
            border-bottom: 2px solid var(--border-medium);
            padding: 14px 16px;
            white-space: nowrap;
        }

        .table-custom tbody td {
            padding: 13px 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            vertical-align: middle;
        }

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

        .badge-win {
            background: #dcfce7;
            color: #166534;
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        .badge-loss {
            background: #fef2f2;
            color: #991b1b;
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        .badge-draw {
            background: #fefce8;
            color: #854d0e;
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.8rem;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .hero-title {
                font-size: 2.1rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-padding {
                padding: 48px 0;
            }
        }

        @media (max-width: 768px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay.show {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--topbar-height);
            }
            .hero-section {
                padding: 40px 0 44px;
            }
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-visual-card {
                padding: 20px 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .steps-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-container {
                padding: 0 16px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-links {
                gap: 12px;
                font-size: 0.82rem;
            }
            .table-custom {
                overflow-x: auto;
            }
            .table-custom table {
                min-width: 600px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }
            .hero-cta-row {
                flex-direction: column;
            }
            .hero-cta-row .btn-brand,
            .hero-cta-row .btn-outline-brand {
                width: 100%;
                justify-content: center;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.78rem;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .share-link-row {
                flex-direction: column;
            }
            .btn-copy {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category6 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-hover: #1e40af;
            --brand-primary-light: #dbeafe;
            --brand-accent: #f59e0b;
            --brand-accent-hover: #d97706;
            --brand-dark: #0f172a;
            --brand-dark-secondary: #1e293b;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #64748b;
            --text-muted: #94a3b8;
            --bg-page: #f1f5f9;
            --bg-card: #ffffff;
            --bg-section-alt: #f8fafc;
            --bg-dark-section: #0f172a;
            --border-light: #e2e8f0;
            --border-medium: #cbd5e1;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --topbar-height: 60px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 30px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
        }

        button:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 0.6rem;
            position: relative;
            font-family: var(--font-heading);
        }

        .section-title::after {
            content: '';
            display: block;
            width: 56px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 2.5rem;
        }

        .section-header.text-center .section-title::after {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--brand-dark);
            color: #ffffff;
            z-index: 1050;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-slow);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 5px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }

        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: var(--brand-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 0;
            flex: 1;
        }

        .sidebar-nav-list li {
            margin: 0;
        }

        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            border-left: 3px solid transparent;
            text-decoration: none;
            position: relative;
        }

        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .sidebar-nav-list a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            border-left-color: rgba(255, 255, 255, 0.4);
            text-decoration: none;
        }

        .sidebar-nav-list a.active {
            color: #ffffff;
            background: rgba(26, 86, 219, 0.35);
            border-left-color: var(--brand-primary);
            font-weight: 600;
        }

        .sidebar-nav-list a.active:hover {
            background: rgba(26, 86, 219, 0.45);
            border-left-color: var(--brand-primary);
        }

        .sidebar-footer-info {
            padding: 14px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            flex-shrink: 0;
            line-height: 1.5;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-width: 0;
            transition: margin-left var(--transition-slow);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .main-content {
            flex: 1;
        }

        .section-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .section-spacing {
            padding: 64px 0;
        }

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

        /* ========== MOBILE TOP BAR ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--brand-dark);
            z-index: 1040;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .mobile-topbar .hamburger-btn {
            background: none;
            border: none;
            color: #ffffff;
            font-size: 1.5rem;
            padding: 8px;
            cursor: pointer;
            flex-shrink: 0;
            line-height: 1;
        }

        .mobile-topbar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 8px;
            color: #ffffff;
            font-weight: 700;
            font-size: 1.1rem;
            font-family: var(--font-heading);
        }

        .mobile-topbar .mobile-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--brand-primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #fff;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1045;
            transition: opacity var(--transition-normal);
        }

        .sidebar-overlay.show {
            display: block;
        }

        /* ========== HERO BENTO ========== */
        .hero-bento {
            padding: 60px 0 48px;
            background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: stretch;
        }

        .bento-main {
            grid-row: 1 / 3;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }

        .bento-main .bento-badge {
            display: inline-block;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            width: fit-content;
        }

        .bento-main h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--brand-dark);
            font-family: var(--font-heading);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .bento-main .bento-desc {
            font-size: 1.08rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 520px;
        }

        .bento-mini {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: box-shadow var(--transition-normal), transform var(--transition-normal);
        }

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

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

        .bento-mini .mini-icon.accent {
            background: #fef3c7;
            color: var(--brand-accent);
        }

        .bento-mini h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 4px;
            font-family: var(--font-heading);
        }

        .bento-mini p {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.5;
        }

        .bento-cta-bar {
            grid-column: 1 / -1;
            background: var(--brand-dark);
            border-radius: var(--radius-md);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            box-shadow: var(--shadow-md);
        }

        .bento-cta-bar .cta-text {
            color: #ffffff;
            font-weight: 600;
            font-size: 1rem;
            font-family: var(--font-heading);
        }

        .btn-brand {
            background: var(--brand-primary);
            color: #ffffff;
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: var(--brand-primary-hover);
            color: #ffffff;
            box-shadow: 0 6px 20px rgba(26, 86, 219, 0.35);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: #ffffff;
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
            text-decoration: none;
        }

        .btn-accent {
            background: var(--brand-accent);
            color: #1e293b;
            border: none;
            padding: 11px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-accent:hover {
            background: var(--brand-accent-hover);
            color: #1e293b;
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
            transform: translateY(-1px);
            text-decoration: none;
        }

        /* ========== SERVICE CARDS ========== */
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

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

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

        .service-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            font-family: var(--font-heading);
        }

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

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

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

        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-primary);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 6px;
        }

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

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

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

        .content-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-5px);
        }

        .content-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e2e8f0;
        }

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

        .content-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .content-card .card-img-wrap .play-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity var(--transition-normal);
        }

        .content-card:hover .card-img-wrap .play-overlay {
            opacity: 1;
        }

        .play-overlay .play-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--brand-primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
        }

        .content-card .card-body-content {
            padding: 20px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            margin-bottom: 10px;
            width: fit-content;
        }

        .content-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 6px;
            font-family: var(--font-heading);
            line-height: 1.4;
        }

        .content-card .card-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .content-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.55;
            margin-bottom: 0;
            flex: 1;
        }

        .content-card .card-link {
            margin-top: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap var(--transition-fast);
            text-decoration: none;
        }

        .content-card .card-link:hover {
            gap: 8px;
            color: var(--brand-primary-hover);
            text-decoration: none;
        }

        /* ========== FEATURE LIST ========== */
        .feature-list-block {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .feature-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: all var(--transition-normal);
        }

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

        .feature-item .feature-check {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: #dcfce7;
            color: #16a34a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .feature-item h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 3px;
            font-family: var(--font-heading);
        }

        .feature-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }

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

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

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        .faq-item .faq-question {
            font-weight: 700;
            font-size: 1.02rem;
            color: var(--brand-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-family: var(--font-heading);
        }

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

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

        .faq-item .faq-answer {
            margin-top: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.65;
            display: none;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

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

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--brand-dark);
            color: #ffffff;
            padding: 64px 0;
        }

        .cta-section .section-title {
            color: #ffffff;
        }

        .cta-section .section-title::after {
            background: var(--brand-accent);
        }

        .cta-section .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        .cta-card {
            background: var(--brand-dark-secondary);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-xl);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-heading);
            margin-bottom: 10px;
        }

        .cta-card p {
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-dark-secondary);
            color: rgba(255, 255, 255, 0.7);
            padding: 36px 0;
            flex-shrink: 0;
        }

        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-bottom: 20px;
            justify-content: center;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .site-footer .footer-links a:hover {
            color: #ffffff;
            text-decoration: none;
        }

        .site-footer .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
        }

        .site-footer .footer-divider a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .site-footer .footer-divider a:hover {
            color: #ffffff;
            text-decoration: none;
        }

        /* ========== BG IMAGE SECTION ========== */
        .bg-image-section {
            position: relative;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0;
            color: #ffffff;
        }

        .bg-image-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.78);
            z-index: 1;
        }

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

        .bg-image-section .section-title {
            color: #ffffff;
        }

        .bg-image-section .section-title::after {
            background: var(--brand-accent);
        }

        .bg-image-section .section-subtitle {
            color: rgba(255, 255, 255, 0.8);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
            }

            .sidebar-nav.open {
                transform: translateX(0);
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .main-content {
                padding-top: var(--topbar-height);
            }

            .bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }

            .bento-main {
                grid-row: auto;
            }

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

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

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

            .section-spacing {
                padding: 48px 0;
            }

            .section-spacing-lg {
                padding: 56px 0;
            }

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

            .bento-main h1 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }

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

            .bento-cta-bar {
                flex-direction: column;
                text-align: center;
            }

            .section-container {
                padding: 0 16px;
            }

            .section-spacing {
                padding: 36px 0;
            }

            .section-spacing-lg {
                padding: 44px 0;
            }

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

            .bento-main h1 {
                font-size: 1.6rem;
            }

            .bento-main {
                padding: 24px 18px;
            }

            .bento-mini {
                padding: 20px 16px;
            }

            .service-card {
                padding: 24px 18px;
            }

            .cta-card {
                padding: 28px 18px;
            }

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

            .bg-image-section {
                padding: 50px 0;
            }
        }

        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr;
            }

            .bento-grid {
                gap: 12px;
            }

            .bento-main {
                padding: 20px 14px;
            }

            .bento-main h1 {
                font-size: 1.4rem;
            }

            .bento-mini {
                padding: 16px 12px;
                gap: 10px;
            }

            .bento-mini .mini-icon {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }

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

            .section-title::after {
                width: 40px;
                height: 3px;
                margin-top: 8px;
            }

            .site-footer .footer-links {
                gap: 10px;
                font-size: 0.8rem;
            }

            .faq-item {
                padding: 16px 14px;
            }

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