/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e8b830;
            --accent-light: #f0d060;
            --accent-dark: #c99a1a;
            --bg-body: #f5f7fc;
            --bg-white: #ffffff;
            --bg-light: #eef1f8;
            --bg-dark: #0d1230;
            --text-primary: #1a1e2e;
            --text-secondary: #4a5070;
            --text-muted: #888ca8;
            --text-white: #f0f2f8;
            --border-color: #dce0ec;
            --border-light: #e8ecf4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 42, 108, 0.14);
            --shadow-accent: 0 6px 24px rgba(232, 184, 48, 0.30);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 260px;
            --header-height: 64px;
            --section-gap: 5rem;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.65;
            font-size: 1rem;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2rem;
            }
        }
        @media (min-width: 1200px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        /* ===== App Shell Layout ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            background: var(--bg-white);
            border-right: 1px solid var(--border-light);
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 1.5rem 1rem;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 2px 0 20px rgba(26, 42, 108, 0.04);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.25rem 0.5rem 1.5rem 0.5rem;
            border-bottom: 1px solid var(--border-light);
            margin-bottom: 1.5rem;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.4rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
        }
        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }
        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
            text-decoration: none;
        }
        .sidebar-nav .nav-item i {
            width: 1.25rem;
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sidebar-nav .nav-item:hover {
            background: var(--bg-light);
            color: var(--primary);
            transform: translateX(4px);
        }
        .sidebar-nav .nav-item:hover i {
            color: var(--primary-light);
        }
        .sidebar-nav .nav-item.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-nav .nav-item.active i {
            color: var(--accent);
        }
        .sidebar-footer {
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-light);
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
        }
        .sidebar-footer a {
            color: var(--text-muted);
        }
        .sidebar-footer a:hover {
            color: var(--primary-light);
        }

        /* ===== Main Content ===== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1030;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            padding: 0.6rem 1.25rem;
            min-height: var(--header-height);
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(26, 42, 108, 0.04);
        }
        .mobile-header .brand-text-sm {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .mobile-header .btn-menu {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-header .btn-menu:hover {
            background: var(--bg-light);
        }

        /* ===== Offcanvas (mobile) ===== */
        .offcanvas.offcanvas-start {
            width: var(--sidebar-width) !important;
            background: var(--bg-white);
            border-right: 1px solid var(--border-light);
        }
        .offcanvas .offcanvas-body {
            padding: 1.5rem 1rem;
            display: flex;
            flex-direction: column;
        }
        .offcanvas .offcanvas-body .sidebar-nav {
            flex: 1;
        }
        .offcanvas .offcanvas-body .sidebar-footer {
            border-top: 1px solid var(--border-light);
            padding-top: 1.25rem;
            margin-top: auto;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            padding: 4rem 2rem;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 184, 48, 0.10) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
            color: var(--text-white);
        }
        .hero-content .badge-hero {
            display: inline-block;
            background: rgba(232, 184, 48, 0.20);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(232, 184, 48, 0.30);
            color: var(--accent-light);
            padding: 0.3rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1.5rem;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            letter-spacing: -0.01em;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.20);
        }
        .hero-content h1 span {
            color: var(--accent);
        }
        .hero-content p {
            font-size: 1.2rem;
            color: rgba(240, 242, 248, 0.85);
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero-content .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-content .btn-hero-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 0.85rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: var(--shadow-accent);
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
        }
        .hero-content .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(232, 184, 48, 0.40);
            background: var(--accent-light);
            color: var(--primary-dark);
        }
        .hero-content .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: var(--text-white);
            padding: 0.85rem 2.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: background var(--transition), transform var(--transition), border-color var(--transition);
        }
        .hero-content .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.20);
            border-color: rgba(255, 255, 255, 0.40);
            transform: translateY(-3px);
            color: var(--text-white);
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: var(--section-gap) 0;
        }
        .section-block .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-block .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 2.5rem;
        }
        .section-block .section-header {
            margin-bottom: 2.5rem;
        }
        .section-bg-light {
            background: var(--bg-light);
        }
        .section-bg-white {
            background: var(--bg-white);
        }
        .section-bg-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-bg-dark .section-title {
            color: var(--text-white);
        }
        .section-bg-dark .section-subtitle {
            color: rgba(240, 242, 248, 0.75);
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .card-custom .card-img-top {
            aspect-ratio: 16 / 9;
            object-fit: cover;
            width: 100%;
        }
        .card-custom .card-body {
            padding: 1.5rem;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.6rem;
        }
        .card-custom .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .card-custom .card-meta .tag {
            background: var(--bg-light);
            color: var(--primary-light);
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.75rem;
        }

        /* ===== Category Cards ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 100%;
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            background: var(--primary-dark);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .cat-bg {
            position: absolute;
            inset: 0;
            object-fit: cover;
            width: 100%;
            height: 100%;
            opacity: 0.55;
            transition: opacity var(--transition), transform var(--transition);
        }
        .category-card:hover .cat-bg {
            opacity: 0.40;
            transform: scale(1.05);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(13, 18, 48, 0.85) 20%, transparent 70%);
            pointer-events: none;
        }
        .category-card .cat-content {
            position: relative;
            z-index: 2;
            padding: 2rem 1.5rem 1.75rem;
            width: 100%;
            color: var(--text-white);
        }
        .category-card .cat-content h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .category-card .cat-content p {
            font-size: 0.9rem;
            color: rgba(240, 242, 248, 0.80);
            margin-bottom: 1rem;
        }
        .category-card .cat-content .btn-cat {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 0.4rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            border: none;
            transition: background var(--transition), transform var(--transition);
            display: inline-block;
        }
        .category-card .cat-content .btn-cat:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        /* ===== Feature Items ===== */
        .feature-item {
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: var(--radius-md);
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            height: 100%;
        }
        .feature-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .feature-item .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.25rem;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            box-shadow: 0 4px 16px rgba(26, 42, 108, 0.15);
        }
        .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .feature-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Stats ===== */
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 0.3rem;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(240, 242, 248, 0.75);
            font-weight: 500;
        }

        /* ===== Steps / Process ===== */
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item .step-number {
            width: 48px;
            height: 48px;
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--accent);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.15);
        }
        .step-item .step-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .step-item .step-content p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 1.1rem 1.25rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition), background var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--primary-light);
            background: var(--bg-light);
        }
        .faq-item .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition), color var(--transition);
        }
        .faq-item .faq-question[aria-expanded="true"]::after {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-item .faq-answer {
            padding: 0 1.25rem 1.1rem;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .faq-item .faq-answer.collapse:not(.show) {
            display: none;
        }
        .faq-item .faq-answer.collapsing {
            min-height: 0;
            transition: height 0.3s ease;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 4rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(240, 242, 248, 0.80);
            margin-bottom: 2rem;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            padding: 0.9rem 3rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: var(--shadow-accent);
            transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232, 184, 48, 0.40);
            background: var(--accent-light);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 242, 248, 0.70);
            padding: 3rem 0 2rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-desc {
            color: rgba(240, 242, 248, 0.55);
            max-width: 360px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-links a {
            color: rgba(240, 242, 248, 0.65);
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-divider {
            border-color: rgba(240, 242, 248, 0.08);
            margin: 1.5rem 0;
        }
        .site-footer .footer-copyright {
            font-size: 0.82rem;
            color: rgba(240, 242, 248, 0.40);
        }

        /* ===== News List (CMS) ===== */
        .news-list .news-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            align-items: flex-start;
        }
        .news-list .news-item:last-child {
            border-bottom: none;
        }
        .news-list .news-item:hover {
            padding-left: 0.5rem;
        }
        .news-list .news-item .news-thumb {
            width: 100px;
            height: 72px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            object-fit: cover;
            background: var(--bg-light);
        }
        .news-list .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-list .news-item .news-info .news-title {
            font-size: 1.02rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition);
        }
        .news-list .news-item .news-info .news-title a {
            color: inherit;
        }
        .news-list .news-item .news-info .news-title a:hover {
            color: var(--primary-light);
        }
        .news-list .news-item .news-info .news-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.3rem;
        }
        .news-list .news-item .news-info .news-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 0.75rem;
            align-items: center;
        }
        .news-list .news-item .news-info .news-meta .tag {
            background: var(--bg-light);
            color: var(--primary-light);
            padding: 0.1rem 0.6rem;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.7rem;
        }
        .news-empty {
            text-align: center;
            padding: 2rem 1rem;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199.98px) {
            :root {
                --section-gap: 4rem;
            }
            .hero-content h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            :root {
                --section-gap: 3.5rem;
            }
            .hero-section {
                min-height: 420px;
                padding: 3rem 1.5rem;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content p {
                font-size: 1.05rem;
            }
            .section-block .section-title {
                font-size: 1.7rem;
            }
            .stat-item .stat-number {
                font-size: 2.2rem;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-gap: 2.8rem;
            }
            .hero-section {
                min-height: 360px;
                padding: 2.5rem 1.25rem;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content p {
                font-size: 0.95rem;
                margin-bottom: 1.5rem;
            }
            .hero-content .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-content .btn-hero-primary,
            .hero-content .btn-hero-secondary {
                width: 100%;
                max-width: 280px;
                text-align: center;
            }
            .section-block .section-title {
                font-size: 1.5rem;
            }
            .section-block .section-subtitle {
                font-size: 0.95rem;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .stat-item .stat-label {
                font-size: 0.85rem;
            }
            .category-card {
                min-height: 200px;
            }
            .category-card .cat-content h3 {
                font-size: 1.15rem;
            }
            .news-list .news-item .news-thumb {
                width: 72px;
                height: 54px;
            }
            .news-list .news-item .news-info .news-title {
                font-size: 0.92rem;
            }
            .cta-section {
                padding: 3rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .btn-cta {
                padding: 0.75rem 2rem;
                font-size: 1rem;
                width: 100%;
                max-width: 300px;
            }
            .site-footer .footer-links {
                gap: 1rem;
                flex-direction: column;
                align-items: center;
            }
            .site-footer {
                text-align: center;
            }
            .site-footer .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-content .badge-hero {
                font-size: 0.75rem;
                padding: 0.2rem 1rem;
            }
            .section-block .section-title {
                font-size: 1.3rem;
            }
            .feature-item {
                padding: 1.25rem 1rem;
            }
            .feature-item .feature-icon {
                width: 52px;
                height: 52px;
                font-size: 1.3rem;
            }
            .step-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.75rem;
            }
            .step-item .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .card-custom .card-body {
                padding: 1.1rem;
            }
            .faq-item .faq-question {
                font-size: 0.9rem;
                padding: 0.9rem 1rem;
            }
            .faq-item .faq-answer {
                font-size: 0.85rem;
                padding: 0 1rem 0.9rem;
            }
        }

        /* ===== Bootstrap Overrides ===== */
        .btn-primary-custom {
            background: var(--primary);
            border-color: var(--primary);
            color: var(--text-white);
            border-radius: 50px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
        }
        .btn-primary-custom:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
            color: var(--text-white);
        }
        .btn-outline-custom {
            background: transparent;
            border: 2px solid var(--primary-light);
            color: var(--primary-light);
            border-radius: 50px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .btn-outline-custom:hover {
            background: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ===== Utility ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-accent-soft {
            background: rgba(232, 184, 48, 0.08);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom-md {
            box-shadow: var(--shadow-md);
        }
        .gap-section {
            gap: var(--section-gap) 0;
        }
        .mt-section {
            margin-top: var(--section-gap);
        }
        .mb-section {
            margin-bottom: var(--section-gap);
        }
        .divider-custom {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-color), transparent);
            margin: 0;
        }

/* roulang page: category1 */
:root {
            --primary: #0b0e1a;
            --primary-light: #1a1f32;
            --primary-dark: #060810;
            --accent: #f0b90b;
            --accent-light: #fcd34d;
            --accent-dark: #c9950a;
            --bg-body: #f5f6fa;
            --bg-card: #ffffff;
            --bg-dark: #0b0e1a;
            --text-white: #f0f0f0;
            --text-light: #cbd5e1;
            --text-muted: #94a3b8;
            --text-body: #1e293b;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-card: #e9edf2;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08);
            --sidebar-width: 240px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            padding-left: var(--sidebar-width);
            min-height: 100vh;
        }
        a {
            color: var(--accent-dark);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== Sidebar Nav ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            border-right: 1px solid var(--border-light);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition);
            overflow-y: auto;
        }
        .sidebar-logo {
            padding: 24px 20px 16px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.3px;
        }
        .sidebar-logo i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-light);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .sidebar-nav .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .sidebar-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
        }
        .sidebar-nav .nav-item:hover i {
            color: var(--accent);
        }
        .sidebar-nav .nav-item.active {
            background: rgba(240, 185, 11, 0.12);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-nav .nav-item.active i {
            color: var(--accent);
        }
        .sidebar-mobile-toggle {
            display: none;
        }
        .sidebar-overlay {
            display: none;
        }
        /* ===== Header (mobile) ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 62px;
            background: var(--primary);
            border-bottom: 1px solid var(--border-light);
            z-index: 1035;
            align-items: center;
            justify-content: space-between;
            padding: 0 18px;
        }
        .mobile-header .logo-text {
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .logo-text i {
            color: var(--accent);
        }
        .mobile-header .menu-btn {
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 4px 8px;
            cursor: pointer;
        }
        /* ===== Main content ===== */
        .main-content {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 60px 0 56px;
            background: var(--primary-dark);
            background-image: linear-gradient(135deg, rgba(11, 14, 26, 0.92), rgba(26, 31, 50, 0.85)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            color: var(--text-white);
            overflow: hidden;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .category-hero .breadcrumb-custom {
            display: flex;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .category-hero .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .category-hero .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .category-hero .breadcrumb-custom .sep {
            color: var(--text-muted);
        }
        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .category-hero .lead {
            font-size: 1.15rem;
            color: var(--text-light);
            max-width: 680px;
            line-height: 1.8;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .category-hero .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* ===== Section ===== */
        .section-block {
            padding: 64px 0;
        }
        .section-block .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-body);
        }
        .section-block .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 36px;
            max-width: 600px;
        }
        .section-block .section-title .accent {
            color: var(--accent-dark);
        }
        .section-block.bg-white {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 52px 40px;
            margin-bottom: 24px;
        }
        .section-block.bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-white);
            border-radius: var(--radius-md);
            padding: 52px 40px;
            margin-bottom: 24px;
        }
        .section-block.bg-dark-section .section-title {
            color: var(--text-white);
        }
        .section-block.bg-dark-section .section-subtitle {
            color: var(--text-muted);
        }
        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-img-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .card-custom .card-body {
            padding: 20px 22px 24px;
        }
        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .card-custom .badge-tag {
            display: inline-block;
            background: rgba(240, 185, 11, 0.12);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
        }
        /* ===== Steps ===== */
        .step-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            margin-bottom: 16px;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .step-card .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-card .step-content h5 {
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-card .step-content p {
            color: var(--text-muted);
            font-size: 0.94rem;
            margin: 0;
        }
        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border-card);
            padding: 18px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-body);
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            transition: var(--transition);
        }
        .faq-item .faq-answer {
            padding-top: 10px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: block;
        }
        .faq-item.bg-dark-section .faq-question {
            color: var(--text-white);
        }
        .faq-item.bg-dark-section .faq-answer {
            color: var(--text-light);
        }
        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            background-image: linear-gradient(135deg, rgba(11, 14, 26, 0.9), rgba(26, 31, 50, 0.88)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            color: var(--text-white);
            text-align: center;
            margin: 24px 0;
        }
        .cta-block h3 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-block p {
            color: var(--text-light);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 12px 36px;
            border-radius: 50px;
            border: none;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 185, 11, 0.3);
        }
        .btn-outline-accent {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            font-weight: 600;
            padding: 10px 28px;
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-outline-accent:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-white-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.25);
            font-weight: 600;
            padding: 10px 28px;
            border-radius: 50px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            color: var(--text-white);
        }
        /* ===== Tag list ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 8px;
        }
        .tag-list .tag-item {
            background: rgba(240, 185, 11, 0.08);
            color: var(--accent-dark);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 20px;
            border: 1px solid rgba(240, 185, 11, 0.15);
            transition: var(--transition);
            text-decoration: none;
        }
        .tag-list .tag-item:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        /* ===== Safety Tips ===== */
        .tip-card {
            display: flex;
            gap: 16px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--accent);
            margin-bottom: 12px;
        }
        .tip-card .tip-icon {
            font-size: 1.5rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .tip-card .tip-text h6 {
            font-weight: 700;
            margin-bottom: 2px;
        }
        .tip-card .tip-text p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin: 0;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: var(--text-light);
            padding: 48px 0 28px;
            margin-top: auto;
            border-top: 1px solid var(--border-light);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            max-width: 360px;
            line-height: 1.8;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .site-footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.92rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-divider {
            border-color: var(--border-light);
            margin: 24px 0 16px;
        }
        .site-footer .footer-copyright {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .site-footer .footer-copyright a {
            color: var(--text-muted);
        }
        .site-footer .footer-copyright a:hover {
            color: var(--accent);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            body {
                padding-left: 0;
                padding-top: 62px;
            }
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .sidebar-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(0, 0, 0, 0.5);
                z-index: 1039;
            }
            .sidebar-overlay.show {
                display: block;
            }
            .category-hero {
                padding: 40px 0 48px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .lead {
                font-size: 1rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-block.bg-white,
            .section-block.bg-dark-section {
                padding: 36px 24px;
            }
            .cta-block {
                padding: 40px 28px;
            }
            .cta-block h3 {
                font-size: 1.6rem;
            }
            .step-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px;
            }
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-stats {
                gap: 18px;
            }
            .category-hero .hero-stats .stat-number {
                font-size: 1.4rem;
            }
            .section-block .section-title {
                font-size: 1.4rem;
            }
            .section-block.bg-white,
            .section-block.bg-dark-section {
                padding: 28px 18px;
            }
            .card-custom .card-img-top {
                height: 140px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-md);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .btn-accent {
                padding: 10px 24px;
                font-size: 0.9rem;
            }
            .site-footer .footer-brand {
                font-size: 1.1rem;
            }
            .tip-card {
                padding: 16px 18px;
            }
            .step-card .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.3rem;
            }
            .category-hero .lead {
                font-size: 0.92rem;
            }
            .category-hero .hero-stats .stat-number {
                font-size: 1.2rem;
            }
            .section-block .section-title {
                font-size: 1.2rem;
            }
            .section-block .section-subtitle {
                font-size: 0.92rem;
            }
            .card-custom .card-body {
                padding: 16px 18px 20px;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
            }
            .tag-list .tag-item {
                font-size: 0.78rem;
                padding: 4px 14px;
            }
        }
        @media (max-width: 480px) {
            .container-custom {
                padding: 0 12px;
            }
            .category-hero {
                padding: 28px 0 36px;
            }
            .section-block {
                padding: 28px 0;
            }
            .cta-block {
                padding: 24px 16px;
            }
            .cta-block h3 {
                font-size: 1.1rem;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }
        @media (min-width: 1025px) {
            .sidebar {
                transform: translateX(0) !important;
            }
            .sidebar-overlay {
                display: none !important;
            }
        }

/* roulang page: article */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --primary-dark: #070f18;
            --accent: #f0b90b;
            --accent-hover: #d4a409;
            --accent-glow: rgba(240, 185, 11, 0.25);
            --bg-body: #f5f7fa;
            --bg-card: #ffffff;
            --bg-sidebar: #0d1b2a;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-color: #e2e8f0;
            --border-light: rgba(255, 255, 255, 0.08);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.08);
            --sidebar-width: 240px;
            --sidebar-collapsed: 68px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== App Shell ===== */
        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition), width var(--transition);
            border-right: 1px solid var(--border-light);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 22px 20px 18px;
            border-bottom: 1px solid var(--border-light);
            flex-shrink: 0;
        }

        .sidebar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary-dark);
            flex-shrink: 0;
        }

        .sidebar-brand .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.3px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            padding: 16px 12px;
            gap: 4px;
            flex: 1;
        }

        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            font-weight: 500;
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
            text-decoration: none;
        }

        .sidebar-nav .nav-item i {
            width: 22px;
            text-align: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .sidebar-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.07);
            color: #fff;
        }

        .sidebar-nav .nav-item.active {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 14px var(--accent-glow);
        }

        .sidebar-nav .nav-item.active i {
            color: var(--primary-dark);
        }

        .sidebar-footer-links {
            padding: 16px 12px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-shrink: 0;
        }

        .sidebar-footer-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.45);
            font-size: 13px;
            transition: color var(--transition), background var(--transition);
        }

        .sidebar-footer-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        /* Main content area */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            transition: margin-left var(--transition);
        }

        .article-page {
            flex: 1;
            padding: 32px 0 48px;
        }

        /* ===== Mobile top bar ===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: var(--primary);
            z-index: 1040;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--border-light);
        }

        .mobile-topbar .brand-text {
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }

        .mobile-topbar .hamburger {
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            padding: 6px 10px;
            cursor: pointer;
            border-radius: 6px;
            transition: background var(--transition);
        }

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

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .sidebar-overlay.show {
            opacity: 1;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-area {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .sep {
            color: var(--text-light);
            font-size: 12px;
        }
        .breadcrumb-custom .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ===== Article Header ===== */
        .article-header {
            margin-bottom: 32px;
        }

        .article-header .article-category {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }

        .article-header h1 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            color: var(--text-muted);
            font-size: 14px;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            font-size: 14px;
            color: var(--accent);
        }

        /* ===== Article Cover ===== */
        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow);
        }

        .article-cover img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            border-radius: var(--radius);
        }

        /* ===== Article Body ===== */
        .article-body {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
            background: #fff;
            padding: 40px 40px 32px;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .article-body p {
            margin-bottom: 1.2em;
        }

        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-weight: 700;
            color: var(--primary);
            margin-top: 1.6em;
            margin-bottom: 0.6em;
        }

        .article-body h2 {
            font-size: 22px;
        }
        .article-body h3 {
            font-size: 18px;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 1.2em;
        }

        .article-body li {
            margin-bottom: 0.4em;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--accent-hover);
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.2em 0;
            background: #faf8f0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.2em 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2em 0;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border-color);
            padding: 10px 16px;
            text-align: left;
        }

        .article-body th {
            background: var(--bg-body);
            font-weight: 600;
        }

        /* ===== Article Footer / Tags ===== */
        .article-footer-bar {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

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

        .article-tags .tag {
            display: inline-block;
            background: var(--bg-body);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        .article-share {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .article-share .share-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-share .share-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            cursor: pointer;
        }

        .article-share .share-btn:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }

        /* ===== Related Posts ===== */
        .related-section {
            margin-top: 48px;
        }

        .related-section .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .related-section .section-title i {
            color: var(--accent);
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }

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

        .related-card .card-img {
            height: 180px;
            overflow: hidden;
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

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

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

        .related-card .card-body .card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body .card-meta {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            margin-top: 48px;
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            background-image: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 185, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h3 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 28px;
            position: relative;
        }

        .cta-section .btn-cta {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 16px;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            position: relative;
        }

        .cta-section .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px var(--accent-glow);
            color: var(--primary-dark);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 32px;
            margin-top: auto;
            border-top: 1px solid var(--border-light);
        }

        .site-footer .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

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

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .site-footer .footer-divider {
            border-color: var(--border-light);
            margin: 28px 0 20px;
            opacity: 0.4;
        }

        .site-footer .footer-copyright {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .site-footer .footer-copyright a {
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-copyright a:hover {
            color: var(--accent);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .not-found-box .nf-icon {
            font-size: 56px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .not-found-box .btn-back {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }

        .not-found-box .btn-back:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 220px;
            }
            .article-header h1 {
                font-size: 26px;
            }
            .article-body {
                padding: 28px 24px;
            }
            .article-cover img {
                height: 280px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }

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

            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }

            .mobile-topbar {
                display: flex;
            }

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

            .article-header h1 {
                font-size: 22px;
            }

            .article-body {
                padding: 20px 16px;
                font-size: 15px;
            }

            .article-cover img {
                height: 200px;
            }

            .cta-section {
                padding: 36px 20px;
            }

            .cta-section h3 {
                font-size: 20px;
            }

            .article-footer-bar {
                flex-direction: column;
                gap: 16px;
                align-items: flex-start;
            }

            .related-section .section-title {
                font-size: 18px;
            }

            .breadcrumb-custom {
                font-size: 13px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .site-footer {
                padding: 32px 0 24px;
            }
        }

        @media (max-width: 520px) {
            .article-header h1 {
                font-size: 19px;
            }

            .article-body {
                padding: 16px 12px;
                font-size: 14px;
                border-radius: var(--radius-sm);
            }

            .article-cover img {
                height: 160px;
            }

            .article-page {
                padding: 16px 0 32px;
            }

            .cta-section {
                padding: 28px 16px;
                border-radius: var(--radius);
            }

            .cta-section h3 {
                font-size: 18px;
            }

            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 14px;
            }

            .related-card .card-img {
                height: 140px;
            }

            .container-custom {
                padding: 0 12px;
            }

            .sidebar {
                width: 100%;
                max-width: 300px;
            }
        }

        @media (min-width: 769px) {
            .sidebar {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: none !important;
            }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b1a2e;
            --primary-light: #112a44;
            --primary-dark: #060f1a;
            --accent: #f0b90b;
            --accent-dark: #d4a309;
            --accent-light: #fcd34d;
            --surface: #f8fafc;
            --surface-alt: #eef2f7;
            --text-primary: #0f1724;
            --text-secondary: #334155;
            --text-muted: #64748b;
            --text-on-dark: #f1f5f9;
            --border: #dde3ea;
            --border-light: #e9edf2;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.10);
            --transition: 0.28s cubic-bezier(0.22, 1, 0.36, 1);
            --sidebar-width: 240px;
            --header-height: 0px;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--surface);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        /* ===== Container Custom ===== */
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== Sidebar App Shell ===== */
        .app-shell {
            display: flex;
            width: 100%;
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            display: flex;
            flex-direction: column;
            z-index: 1050;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.15);
            overflow-y: auto;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 24px 20px 20px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            letter-spacing: 0.3px;
        }
        .sidebar-brand i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .sidebar-brand span {
            background: linear-gradient(135deg, #fff 60%, var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 16px 12px;
            gap: 4px;
        }

        .sidebar-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .sidebar-nav .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .sidebar-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav .nav-item:hover i {
            color: var(--accent);
        }
        .sidebar-nav .nav-item.active {
            background: rgba(240, 185, 11, 0.15);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-nav .nav-item.active i {
            color: var(--accent);
        }
        .sidebar-nav .nav-item:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .sidebar-footer-mini {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.35);
            font-size: 0.78rem;
            text-align: center;
        }

        /* ===== 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));
        }

        /* ===== Mobile Top Bar ===== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 1040;
            background: var(--primary);
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.12);
        }
        .mobile-topbar .brand-text {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-topbar .brand-text i {
            color: var(--accent);
        }
        .mobile-menu-btn {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Sidebar Overlay (mobile) ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition);
            pointer-events: none;
        }
        .sidebar-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 72px 0 60px;
            color: #fff;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 15, 26, 0.85) 30%, rgba(11, 26, 46, 0.7) 70%);
            pointer-events: none;
        }
        .page-banner .container-custom {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .page-banner h1 i {
            color: var(--accent);
            margin-right: 8px;
        }
        .page-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            margin-bottom: 16px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.3);
        }
        .page-banner .breadcrumb-custom .current {
            color: var(--accent);
            font-weight: 500;
        }

        /* ===== Section通用 ===== */
        .section-block {
            padding: 64px 0;
        }
        .section-block-alt {
            background: var(--surface-alt);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 36px;
            max-width: 600px;
        }
        .section-title i {
            color: var(--accent);
            margin-right: 6px;
        }

        /* ===== Sport Category Tabs ===== */
        .sport-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
        }
        .sport-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 50px;
            background: #fff;
            border: 1px solid var(--border);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-secondary);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .sport-tab i {
            font-size: 1rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sport-tab:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: #fffaf0;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(240, 185, 11, 0.15);
        }
        .sport-tab:hover i {
            color: var(--accent);
        }
        .sport-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(11, 26, 46, 0.25);
        }
        .sport-tab.active i {
            color: var(--accent);
        }
        .sport-tab:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Event Cards ===== */
        .event-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(240, 185, 11, 0.2);
        }
        .event-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--surface-alt);
        }
        .event-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .event-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 14px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
            box-shadow: 0 2px 8px rgba(240, 185, 11, 0.3);
        }
        .event-card .card-body {
            padding: 20px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(240, 185, 11, 0.1);
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 8px;
            width: fit-content;
        }
        .event-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .event-card:hover .card-title {
            color: var(--primary);
        }
        .event-card .card-text {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .event-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.84rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-light);
            padding-top: 12px;
            margin-top: auto;
        }
        .event-card .card-meta i {
            margin-right: 4px;
            color: var(--accent);
        }
        .event-card .card-meta .meta-item {
            display: flex;
            align-items: center;
        }

        /* ===== Stats / Data Row ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-item .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-number i {
            color: var(--accent);
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== News/Article List ===== */
        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            border-radius: var(--radius-sm);
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-list-item:hover {
            background: rgba(240, 185, 11, 0.03);
            padding-left: 12px;
            padding-right: 12px;
            margin-left: -12px;
            margin-right: -12px;
        }
        .news-list-item .news-thumb {
            width: 140px;
            min-width: 140px;
            aspect-ratio: 16 / 10;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--surface-alt);
        }
        .news-list-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-list-item:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-list-item .news-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-list-item .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            line-height: 1.4;
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .news-list-item:hover .news-title {
            color: var(--primary);
        }
        .news-list-item .news-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-list-item .news-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .news-list-item .news-meta i {
            margin-right: 4px;
            color: var(--accent);
        }
        .news-list-item .news-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(240, 185, 11, 0.12);
            padding: 2px 12px;
            border-radius: 50px;
        }

        /* ===== FAQ ===== */
        .faq-accordion .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-accordion .faq-item:hover {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .faq-accordion .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition);
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }
        .faq-accordion .faq-question:hover {
            background: rgba(240, 185, 11, 0.04);
        }
        .faq-accordion .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-accordion .faq-question i {
            color: var(--accent);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-accordion .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-accordion .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 15, 26, 0.8) 30%, rgba(11, 26, 46, 0.6) 70%);
            pointer-events: none;
            border-radius: var(--radius-lg);
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(240, 185, 11, 0.3);
        }
        .cta-block .btn-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(240, 185, 11, 0.4);
            color: var(--primary);
        }
        .cta-block .btn-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 4px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
            margin-top: auto;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.92rem;
            transition: color var(--transition);
            padding: 2px 0;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-links a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.08);
            margin: 24px 0 16px;
        }
        .site-footer .footer-copyright {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-copyright a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
        }
        .site-footer .footer-copyright a:hover {
            color: var(--accent);
        }

        /* ===== Button通用 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            transition: all var(--transition);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-custom-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(11, 26, 46, 0.2);
        }
        .btn-custom-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 26, 46, 0.25);
            color: #fff;
        }
        .btn-custom-accent {
            background: var(--accent);
            color: var(--primary);
        }
        .btn-custom-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 185, 11, 0.3);
            color: var(--primary);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-custom-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-custom:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }
            body {
                flex-direction: column;
            }
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 40px rgba(0, 0, 0, 0.3);
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                width: 100%;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-sub {
                font-size: 0.95rem;
            }
            .section-block {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-list-item .news-thumb {
                width: 100%;
                min-width: unset;
                aspect-ratio: 16 / 9;
            }
            .cta-block {
                padding: 36px 24px;
            }
            .cta-block h2 {
                font-size: 1.4rem;
            }
            .sport-tabs {
                gap: 8px;
            }
            .sport-tab {
                padding: 8px 16px;
                font-size: 0.84rem;
            }
            .container-custom {
                padding: 0 16px;
            }
            .event-card .card-body {
                padding: 16px;
            }
            .faq-accordion .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-accordion .faq-answer {
                padding: 0 16px 14px;
            }
            .site-footer {
                padding: 32px 0 24px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .sport-tabs {
                gap: 6px;
            }
            .sport-tab {
                padding: 6px 12px;
                font-size: 0.78rem;
                gap: 4px;
            }
            .sport-tab i {
                font-size: 0.85rem;
            }
            .cta-block h2 {
                font-size: 1.2rem;
            }
            .cta-block .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .sidebar {
                width: 260px;
            }
            .mobile-topbar .brand-text {
                font-size: 0.95rem;
            }
            .news-list-item .news-title {
                font-size: 0.95rem;
            }
        }

        /* ===== Smooth scroll offset ===== */
        .scroll-offset {
            scroll-margin-top: 20px;
        }

        /* ===== Accessibility ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }

        /* ===== Print ===== */
        @media print {
            .sidebar,
            .mobile-topbar,
            .sidebar-overlay {
                display: none !important;
            }
            .main-content {
                margin-left: 0 !important;
                width: 100% !important;
            }
            .cta-block {
                background: var(--primary) !important;
                padding: 24px !important;
            }
            .event-card,
            .stat-item,
            .news-list-item {
                break-inside: avoid;
                box-shadow: none !important;
                border: 1px solid #ddd !important;
            }
        }