/* roulang page: index */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --dark: #0d1b2a;
            --dark-surface: #1b2d45;
            --light: #f8f9fa;
            --gray-100: #f1f3f5;
            --gray-200: #e9ecef;
            --gray-300: #dee2e6;
            --gray-500: #adb5bd;
            --gray-700: #495057;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #f8f9fa;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s ease;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            color: var(--text-primary);
            background: #ffffff;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* --- navigation --- */
        .site-header {
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 2px;
            flex: 1;
        }

        .nav-left { justify-content: flex-start; }
        .nav-right { justify-content: flex-end; }

        .nav-center {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            padding: 0 24px;
        }

        .logo-text {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            white-space: nowrap;
        }

        .logo-text .logo-sub {
            font-size: 0.7rem;
            font-weight: 500;
            letter-spacing: 2px;
            background: var(--secondary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
            text-align: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(230,57,70,0.06);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(230,57,70,0.10);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 15px rgba(230,57,70,0.30);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230,57,70,0.40);
        }

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

        /* --- hero --- */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.85) 0%, rgba(27,45,69,0.75) 50%, rgba(230,57,70,0.25) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 80px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            padding: 8px 20px;
            border-radius: 50px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            border: 1px solid rgba(255,255,255,0.15);
        }

        .hero-badge i { color: var(--accent); }

        .hero-title {
            font-size: clamp(2.6rem, 6vw, 4.5rem);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.85);
            max-width: 640px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(230,57,70,0.35);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230,57,70,0.45);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            text-decoration: none;
            border: 2px solid rgba(255,255,255,0.30);
            transition: var(--transition);
            background: transparent;
        }

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

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.15);
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

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

        /* --- sections --- */
        .section-padding {
            padding: 90px 0;
        }

        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

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

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

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-subtitle {
            margin: 0 auto;
        }

        .bg-light {
            background: var(--gray-100);
        }

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

        .bg-dark .section-title { color: #fff; }
        .bg-dark .section-subtitle { color: rgba(255,255,255,0.70); }

        /* --- cards --- */
        .card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
        }

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

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

        .card-body {
            padding: 24px;
        }

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

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

        .card-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(230,57,70,0.08);
            border-radius: 50px;
            margin-bottom: 12px;
        }

        /* feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
            text-align: center;
        }

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

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        }

        .feature-icon.gold { background: linear-gradient(135deg, var(--accent), #e76f51); }
        .feature-icon.blue { background: linear-gradient(135deg, var(--secondary-light), var(--secondary)); }
        .feature-icon.green { background: linear-gradient(135deg, #2a9d8f, #1a7a6e); }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

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

        /* --- cms list --- */
        .cms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .cms-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
            display: flex;
            flex-direction: column;
        }

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

        .cms-card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .cms-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--gray-500);
            margin-bottom: 10px;
        }

        .cms-card .card-meta .cms-cat {
            background: rgba(230,57,70,0.08);
            color: var(--primary);
            padding: 2px 10px;
            border-radius: 50px;
            font-weight: 600;
        }

        .cms-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .cms-card h3 a {
            color: inherit;
            text-decoration: none;
        }

        .cms-card h3 a:hover { color: var(--primary); }

        .cms-card .cms-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        .cms-card .cms-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            margin-top: 16px;
            transition: var(--transition);
        }

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

        .empty-list {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--gray-500);
            font-size: 1rem;
            background: rgba(0,0,0,0.02);
            border-radius: var(--radius);
        }

        /* --- tabs / categories --- */
        .cat-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }

        .cat-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--gray-100);
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .cat-tab:hover {
            color: var(--primary);
            background: rgba(230,57,70,0.06);
            border-color: rgba(230,57,70,0.15);
        }

        .cat-tab.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }

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

        .faq-item {
            border-bottom: 1px solid var(--gray-200);
            padding: 20px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 0;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--gray-500);
            font-size: 0.9rem;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-answer.open {
            max-height: 400px;
            padding-top: 14px;
        }

        /* --- cta --- */
        .cta-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-surface) 50%, rgba(230,57,70,0.12) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

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

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.75);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 16px 44px;
        }

        /* --- footer --- */
        .site-footer {
            background: var(--dark);
            color: rgba(255,255,255,0.70);
            padding: 64px 0 32px;
        }

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

        .footer-brand .logo-text {
            font-size: 1.5rem;
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.55);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            text-decoration: none;
            font-size: 0.88rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.40);
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: rgba(255,255,255,0.40);
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-bottom-links a:hover { color: rgba(255,255,255,0.70); }

        /* --- responsive --- */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle { display: block; }

            .nav-left, .nav-right {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: 0 20px 40px rgba(0,0,0,0.10);
                border-top: 1px solid rgba(0,0,0,0.04);
                gap: 4px;
            }

            .nav-left.open, .nav-right.open { display: flex; }

            .nav-left { align-items: stretch; }
            .nav-right { align-items: stretch; }

            .nav-link {
                padding: 12px 16px;
                width: 100%;
            }

            .nav-link.active::after { display: none; }

            .nav-cta { justify-content: center; }

            .nav-center {
                padding: 0 12px;
            }

            .logo-text { font-size: 1.3rem; }

            .hero-stats {
                flex-wrap: wrap;
                gap: 24px;
            }

            .hero-stat-item { flex: 1; min-width: 80px; }

            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

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

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

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

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

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

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

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

        /* --- utilities --- */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gap-2 { gap: 8px; }
        .gap-3 { gap: 12px; }
        .gap-4 { gap: 16px; }

        .mt-8 { margin-top: 32px; }
        .mb-8 { margin-bottom: 32px; }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            padding: 16px 24px;
            background: rgba(255,255,255,0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255,255,255,0.08);
        }

        .trust-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.70);
        }

        .trust-badge-item i { color: var(--accent); }

        /* image hover */
        .img-zoom {
            overflow: hidden;
        }

        .img-zoom img {
            transition: transform 0.5s ease;
        }

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

/* roulang page: article */
:root {
            --primary: #eab308;
            --primary-dark: #ca8a04;
            --primary-light: #fef08a;
            --secondary: #1e293b;
            --accent: #f59e0b;
            --bg-dark: #0f172a;
            --bg-darker: #020617;
            --bg-card: #1e293b;
            --bg-section: #0f172a;
            --text-light: #f8fafc;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-color: #334155;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 24px rgba(0,0,0,0.30);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.40);
            --transition: all 0.3s ease;
            --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
        }
        * { margin:0; padding:0; box-sizing:border-box; }
        html { scroll-behavior:smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color:inherit; text-decoration:none; transition:var(--transition); }
        img { max-width:100%; height:auto; display:block; border-radius:var(--radius-sm); }
        button { cursor:pointer; border:none; background:none; font-family:inherit; }
        ul, ol { list-style:none; }
        input, textarea { font-family:inherit; }
        .container-custom { max-width:1200px; margin:0 auto; padding:0 24px; }
        @media (max-width:768px){ .container-custom { padding:0 16px; } }

        /* header / nav */
        .site-header {
            position:fixed; top:0; left:0; width:100%; z-index:1000;
            background:rgba(15,23,42,0.92); backdrop-filter:blur(16px);
            border-bottom:1px solid rgba(234,179,8,0.10);
            transition:var(--transition);
        }
        .nav-inner {
            display:flex; align-items:center; justify-content:space-between;
            height:70px; gap:12px;
        }
        .nav-left, .nav-right { display:flex; align-items:center; gap:6px; }
        .nav-link {
            padding:8px 16px; border-radius:var(--radius-sm);
            font-size:0.90rem; font-weight:500; color:var(--text-muted);
            transition:var(--transition); letter-spacing:0.3px;
            white-space:nowrap;
        }
        .nav-link:hover { color:var(--primary); background:rgba(234,179,8,0.08); }
        .nav-link.active { color:var(--primary); background:rgba(234,179,8,0.12); }
        .nav-cta {
            display:inline-flex; align-items:center; gap:6px;
            padding:8px 20px; border-radius:var(--radius-sm);
            background:linear-gradient(135deg,var(--primary),var(--accent));
            color:var(--bg-darker); font-weight:600; font-size:0.88rem;
            transition:var(--transition); white-space:nowrap;
            box-shadow:0 2px 12px rgba(234,179,8,0.25);
        }
        .nav-cta:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(234,179,8,0.35); }
        .nav-center { position:absolute; left:50%; transform:translateX(-50%); }
        .logo-text {
            display:inline-flex; flex-direction:column; align-items:center;
            font-size:1.45rem; font-weight:800; color:var(--text-light);
            letter-spacing:1px; line-height:1.2;
        }
        .logo-text .logo-sub { font-size:0.55rem; font-weight:400; color:var(--primary); letter-spacing:2px; }
        .menu-toggle { display:none; font-size:1.4rem; color:var(--text-light); padding:6px 10px; }
        @media (max-width:968px){
            .nav-left, .nav-right { display:none; }
            .menu-toggle { display:block; }
            .nav-center { position:static; transform:none; }
            .nav-inner { justify-content:space-between; }
            .mobile-menu-open .nav-left,
            .mobile-menu-open .nav-right {
                display:flex; flex-direction:column; position:absolute; top:70px; left:0; width:100%;
                background:rgba(15,23,42,0.98); backdrop-filter:blur(16px);
                padding:12px 20px 20px; border-bottom:1px solid rgba(234,179,8,0.10);
                gap:4px; z-index:999;
            }
            .mobile-menu-open .nav-left { top:70px; }
            .mobile-menu-open .nav-right { top:auto; bottom:auto; margin-top:0; }
            .mobile-menu-open .nav-left .nav-link,
            .mobile-menu-open .nav-right .nav-link { width:100%; }
            .mobile-menu-open .nav-right .nav-cta { width:100%; justify-content:center; margin-top:6px; }
        }
        @media (max-width:968px){
            .site-header.mobile-menu-open .nav-left,
            .site-header.mobile-menu-open .nav-right {
                display:flex !important;
            }
        }
        @media (min-width:969px){
            .site-header .nav-left, .site-header .nav-right { display:flex !important; }
        }

        /* page banner */
        .page-banner {
            padding:140px 0 60px; position:relative; overflow:hidden;
            background:linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
        }
        .page-banner::before {
            content:''; position:absolute; inset:0;
            background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity:0.08; pointer-events:none;
        }
        .page-banner .banner-overlay {
            position:absolute; inset:0;
            background:linear-gradient(to bottom, rgba(15,23,42,0.70), rgba(15,23,42,0.95));
            pointer-events:none;
        }
        .page-banner .container-custom { position:relative; z-index:2; }
        .page-banner h1 {
            font-size:2.2rem; font-weight:800; color:var(--text-light);
            line-height:1.3; max-width:800px;
        }
        .page-banner .meta-row {
            display:flex; flex-wrap:wrap; gap:16px 28px; margin-top:16px;
            color:var(--text-muted); font-size:0.92rem;
        }
        .page-banner .meta-row i { margin-right:6px; color:var(--primary); }
        .breadcrumb { display:flex; flex-wrap:wrap; gap:6px 12px; margin-bottom:14px; font-size:0.85rem; color:var(--text-dim); }
        .breadcrumb a { color:var(--text-muted); }
        .breadcrumb a:hover { color:var(--primary); }
        .breadcrumb .sep { color:var(--text-dim); }

        /* article main */
        .article-main { padding:50px 0 70px; }
        .article-content {
            max-width:860px; margin:0 auto;
            background:var(--bg-card); border-radius:var(--radius-lg);
            padding:40px 48px; border:1px solid var(--border-color);
            box-shadow:var(--shadow);
        }
        .article-content .cms-body {
            font-size:1.05rem; line-height:1.9; color:var(--text-light);
        }
        .article-content .cms-body p { margin-bottom:1.2em; }
        .article-content .cms-body h2 { font-size:1.5rem; font-weight:700; margin:1.8em 0 0.8em; color:var(--primary); }
        .article-content .cms-body h3 { font-size:1.25rem; font-weight:600; margin:1.6em 0 0.6em; color:var(--text-light); }
        .article-content .cms-body ul, .article-content .cms-body ol { margin:0.8em 0 1.2em 1.6em; }
        .article-content .cms-body li { margin-bottom:0.4em; list-style:disc; }
        .article-content .cms-body a { color:var(--primary); border-bottom:1px solid rgba(234,179,8,0.3); }
        .article-content .cms-body a:hover { color:var(--primary-light); border-color:var(--primary); }
        .article-content .cms-body img { border-radius:var(--radius); margin:1.5em 0; }
        .article-content .cms-body blockquote {
            border-left:4px solid var(--primary); padding:12px 20px; margin:1.2em 0;
            background:rgba(234,179,8,0.06); border-radius:0 var(--radius-sm) var(--radius-sm) 0;
            color:var(--text-muted); font-style:italic;
        }
        .article-content .cms-body .cms-table-wrap { overflow-x:auto; margin:1.2em 0; }
        .article-content .cms-body table { width:100%; border-collapse:collapse; }
        .article-content .cms-body th, .article-content .cms-body td {
            border:1px solid var(--border-color); padding:10px 14px; text-align:left;
        }
        .article-content .cms-body th { background:rgba(234,179,8,0.08); color:var(--primary); font-weight:600; }
        .article-content .cms-body hr { border:none; height:1px; background:var(--border-color); margin:2em 0; }

        .article-notfound {
            text-align:center; padding:60px 20px;
        }
        .article-notfound i { font-size:3rem; color:var(--text-dim); margin-bottom:16px; }
        .article-notfound h2 { font-size:1.5rem; color:var(--text-muted); margin-bottom:12px; }
        .article-notfound a { color:var(--primary); font-weight:600; }
        .article-notfound a:hover { text-decoration:underline; }

        /* tags & share */
        .article-tags { display:flex; flex-wrap:wrap; gap:8px; margin-top:30px; padding-top:20px; border-top:1px solid var(--border-color); }
        .article-tags .tag {
            display:inline-block; padding:4px 14px; border-radius:20px;
            background:rgba(234,179,8,0.08); color:var(--primary); font-size:0.80rem;
            border:1px solid rgba(234,179,8,0.15); transition:var(--transition);
        }
        .article-tags .tag:hover { background:rgba(234,179,8,0.18); }
        .article-share { display:flex; gap:10px; margin-top:16px; }
        .article-share a {
            display:flex; align-items:center; justify-content:center;
            width:38px; height:38px; border-radius:50%;
            background:rgba(255,255,255,0.06); color:var(--text-muted);
            border:1px solid var(--border-color); transition:var(--transition);
        }
        .article-share a:hover { background:var(--primary); color:var(--bg-darker); border-color:var(--primary); }

        /* related posts */
        .related-section { padding:40px 0 70px; }
        .related-section h2 { font-size:1.6rem; font-weight:700; margin-bottom:28px; text-align:center; color:var(--text-light); }
        .related-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(280px,1fr)); gap:20px; }
        .related-card {
            background:var(--bg-card); border-radius:var(--radius); overflow:hidden;
            border:1px solid var(--border-color); transition:var(--transition);
        }
        .related-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); border-color:rgba(234,179,8,0.20); }
        .related-card img { width:100%; height:180px; object-fit:cover; border-radius:0; }
        .related-card .card-body { padding:16px 20px 20px; }
        .related-card .card-body h3 { font-size:1.05rem; font-weight:600; margin-bottom:8px; }
        .related-card .card-body h3 a { color:var(--text-light); }
        .related-card .card-body h3 a:hover { color:var(--primary); }
        .related-card .card-body p { font-size:0.88rem; color:var(--text-muted); line-height:1.6; }
        .related-card .card-meta { font-size:0.80rem; color:var(--text-dim); margin-top:10px; display:flex; gap:12px; }

        /* CTA */
        .article-cta {
            background:linear-gradient(135deg, var(--bg-card), var(--secondary));
            border-radius:var(--radius-lg); padding:48px 40px; text-align:center;
            border:1px solid var(--border-color); margin-top:40px;
            position:relative; overflow:hidden;
        }
        .article-cta::before {
            content:''; position:absolute; inset:0;
            background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity:0.05; pointer-events:none;
        }
        .article-cta h3 { font-size:1.6rem; font-weight:700; color:var(--text-light); margin-bottom:12px; }
        .article-cta p { color:var(--text-muted); max-width:600px; margin:0 auto 24px; font-size:1rem; }
        .article-cta .btn-cta {
            display:inline-flex; align-items:center; gap:10px;
            padding:14px 40px; border-radius:var(--radius-sm);
            background:linear-gradient(135deg,var(--primary),var(--accent));
            color:var(--bg-darker); font-weight:700; font-size:1.05rem;
            transition:var(--transition); box-shadow:0 4px 20px rgba(234,179,8,0.30);
        }
        .article-cta .btn-cta:hover { transform:translateY(-3px); box-shadow:0 8px 32px rgba(234,179,8,0.40); }

        /* footer */
        .site-footer {
            background:var(--bg-darker); border-top:1px solid rgba(234,179,8,0.06);
            padding:60px 0 30px; color:var(--text-muted);
        }
        .footer-grid {
            display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:32px;
        }
        @media (max-width:968px){ .footer-grid { grid-template-columns:1fr 1fr; } }
        @media (max-width:520px){ .footer-grid { grid-template-columns:1fr; } }
        .footer-brand .logo-text { font-size:1.4rem; }
        .footer-brand p { margin-top:12px; font-size:0.90rem; line-height:1.7; max-width:360px; }
        .footer-col h4 { font-size:1rem; font-weight:600; color:var(--text-light); margin-bottom:16px; letter-spacing:0.5px; }
        .footer-col ul li { margin-bottom:8px; }
        .footer-col ul li a { font-size:0.88rem; color:var(--text-dim); transition:var(--transition); }
        .footer-col ul li a:hover { color:var(--primary); padding-left:4px; }
        .footer-bottom {
            margin-top:36px; padding-top:20px; border-top:1px solid rgba(255,255,255,0.05);
            display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
            font-size:0.82rem; color:var(--text-dim);
        }
        .footer-bottom a { color:var(--text-dim); }
        .footer-bottom a:hover { color:var(--primary); }
        @media (max-width:520px){ .footer-bottom { flex-direction:column; text-align:center; } }

        /* mobile nav helper */
        @media (max-width:968px){
            .nav-left, .nav-right { display:none; }
            .menu-toggle { display:block; }
            .nav-center { position:static; transform:none; }
            .site-header.mobile-menu-open .nav-left,
            .site-header.mobile-menu-open .nav-right {
                display:flex; flex-direction:column; position:absolute;
                background:rgba(15,23,42,0.98); backdrop-filter:blur(16px);
                padding:12px 20px 20px; border-bottom:1px solid rgba(234,179,8,0.10);
                z-index:999; gap:4px;
            }
            .site-header.mobile-menu-open .nav-left { top:70px; left:0; width:100%; }
            .site-header.mobile-menu-open .nav-right { top:auto; bottom:auto; left:0; width:100%; margin-top:0; }
            .site-header.mobile-menu-open .nav-left .nav-link,
            .site-header.mobile-menu-open .nav-right .nav-link { width:100%; }
            .site-header.mobile-menu-open .nav-right .nav-cta { width:100%; justify-content:center; margin-top:6px; }
        }

        /* responsive article */
        @media (max-width:768px){
            .page-banner { padding:110px 0 40px; }
            .page-banner h1 { font-size:1.6rem; }
            .article-content { padding:24px 20px; }
            .article-content .cms-body { font-size:0.98rem; }
            .related-grid { grid-template-columns:1fr; }
            .article-cta { padding:32px 20px; }
            .article-cta h3 { font-size:1.3rem; }
        }
        @media (max-width:520px){
            .page-banner h1 { font-size:1.35rem; }
            .article-content { padding:16px 14px; border-radius:var(--radius); }
            .meta-row { font-size:0.82rem; gap:10px 16px; }
        }

        /* utility */
        .text-primary { color:var(--primary); }
        .bg-primary { background:var(--primary); }

/* roulang page: category1 */
:root {
            --primary: #1a64f5;
            --primary-dark: #1350e1;
            --primary-light: #8ec8ff;
            --accent: #ed8515;
            --accent-dark: #b84e0c;
            --bg-dark: #0f172a;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border-light: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --transition: 0.3s 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;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background: #f8fafc;
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: #0f172a;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #ffffff;
            line-height: 1.2;
            transition: var(--transition);
        }

        .logo-text:hover {
            opacity: 0.85;
        }

        .logo-sub {
            font-size: 0.55rem;
            font-weight: 500;
            letter-spacing: 2.5px;
            color: rgba(255, 255, 255, 0.45);
            text-transform: uppercase;
            margin-top: 1px;
        }

        .nav-link {
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.70);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.10);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 22px;
            background: linear-gradient(135deg, var(--accent), #f09d33);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(237, 133, 21, 0.35);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(237, 133, 21, 0.45);
            color: #fff;
        }

        .nav-cta i {
            font-size: 0.8rem;
        }

        .menu-toggle {
            display: none;
            background: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            color: var(--accent);
        }

        /* Mobile Nav */
        @media (max-width: 1024px) {
            .nav-left,
            .nav-right {
                display: none;
                flex-direction: column;
                gap: 4px;
                width: 100%;
                background: rgba(15, 23, 42, 0.98);
                position: absolute;
                top: 70px;
                left: 0;
                padding: 16px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                backdrop-filter: blur(12px);
            }

            .nav-left.open,
            .nav-right.open {
                display: flex;
            }

            .nav-left {
                z-index: 1001;
            }

            .nav-right {
                top: calc(70px + 200px);
                z-index: 1000;
            }

            .nav-link {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
            }

            .nav-link.active::after {
                bottom: 6px;
                left: 16px;
                transform: none;
                width: 30px;
            }

            .nav-cta {
                width: 100%;
                justify-content: center;
                padding: 12px 22px;
                margin-top: 4px;
            }

            .menu-toggle {
                display: block;
            }

            .nav-center {
                position: relative;
                left: auto;
                transform: none;
                margin: 0 auto;
            }

            .nav-inner {
                justify-content: space-between;
            }
        }

        @media (max-width: 520px) {
            .nav-inner {
                height: 62px;
            }

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

            .logo-sub {
                font-size: 0.5rem;
            }

            .nav-link {
                font-size: 0.9rem;
                padding: 10px 14px;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            background: linear-gradient(135deg, #0b1224 0%, #1a2744 50%, #0f172a 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 1;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(26, 100, 245, 0.15) 0%, transparent 70%),
                radial-gradient(ellipse at 70% 80%, rgba(237, 133, 21, 0.08) 0%, transparent 60%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 860px;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 50px;
            color: rgba(255, 255, 255, 0.80);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            color: var(--accent);
            font-size: 0.75rem;
        }

        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.5px;
            margin-bottom: 24px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--accent), #f5be6d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.65);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            background: linear-gradient(135deg, var(--accent), #f09d33);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            box-shadow: 0 8px 30px rgba(237, 133, 21, 0.40);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(237, 133, 21, 0.50);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 50px;
            transition: var(--transition);
            cursor: pointer;
            backdrop-filter: blur(4px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

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

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.50);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 80vh;
                padding: 100px 0 60px;
            }

            .hero-stats {
                gap: 24px;
                padding-top: 30px;
                margin-top: 40px;
            }

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

            .btn-primary,
            .btn-secondary {
                padding: 14px 28px;
                font-size: 0.9rem;
            }
        }

        /* ===== Section Shared ===== */
        .section-padding {
            padding: 90px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(26, 100, 245, 0.08);
            border-radius: 50px;
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            color: #0f172a;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.8;
        }

        .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Advantages ===== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }

        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .advantage-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: #fff;
        }

        .advantage-icon.blue {
            background: linear-gradient(135deg, #1a64f5, #58a9ff);
        }

        .advantage-icon.orange {
            background: linear-gradient(135deg, #ed8515, #f5be6d);
        }

        .advantage-icon.green {
            background: linear-gradient(135deg, #10b981, #6ee7b7);
        }

        .advantage-icon.purple {
            background: linear-gradient(135deg, #8b5cf6, #c4b5fd);
        }

        .advantage-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: #0f172a;
        }

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

        @media (max-width: 1024px) {
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            .advantage-card {
                padding: 28px 20px 24px;
            }
        }

        /* ===== Sports Categories ===== */
        .sports-section {
            background: #ffffff;
        }

        .sports-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .sport-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .sport-card-image {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .sport-card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.60) 0%, transparent 70%);
        }

        .sport-card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            padding: 4px 14px;
            background: rgba(237, 133, 21, 0.90);
            border-radius: 50px;
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }

        .sport-card-body {
            padding: 24px 22px 26px;
        }

        .sport-card-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #0f172a;
        }

        .sport-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .sport-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
        }

        .sport-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(26, 100, 245, 0.06);
            border-radius: 50px;
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 500;
        }

        .sport-card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        @media (max-width: 1024px) {
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

            .sport-card-image {
                height: 160px;
            }

            .sport-card-body {
                padding: 18px 16px 20px;
            }
        }

        /* ===== Process ===== */
        .process-section {
            background: #f1f5f9;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 48px;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(to right, var(--primary-light), var(--accent));
            opacity: 0.3;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .process-step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 6px 20px rgba(26, 100, 245, 0.25);
            position: relative;
        }

        .process-step:nth-child(2) .process-step-number {
            background: linear-gradient(135deg, var(--accent), #f5be6d);
            box-shadow: 0 6px 20px rgba(237, 133, 21, 0.25);
        }

        .process-step:nth-child(3) .process-step-number {
            background: linear-gradient(135deg, #10b981, #6ee7b7);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.25);
        }

        .process-step:nth-child(4) .process-step-number {
            background: linear-gradient(135deg, #8b5cf6, #c4b5fd);
            box-shadow: 0 6px 20px rgba(139, 92, 246, 0.25);
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: #0f172a;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 200px;
            margin: 0 auto;
        }

        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

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

        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: linear-gradient(135deg, #0f172a 0%, #1a2744 100%);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 1;
        }

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

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 16px;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.12);
        }

        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

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

        .stat-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item .number {
                font-size: 1.8rem;
            }
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            background: #ffffff;
        }

        .faq-list {
            max-width: 780px;
            margin: 48px auto 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #f8fafc;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: #cbd5e1;
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: #0f172a;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

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

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            z-index: 1;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 20px 0;
        }

        .cta-title {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .cta-actions .btn-primary {
            padding: 18px 44px;
            font-size: 1.05rem;
        }

        .cta-actions .btn-secondary {
            padding: 18px 44px;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1224;
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

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

        .footer-brand .logo-text {
            align-items: flex-start;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.50);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.50);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

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

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #f09d33);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: 0 6px 24px rgba(237, 133, 21, 0.35);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .back-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(237, 133, 21, 0.45);
            color: #fff;
        }

        @media (max-width: 520px) {
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 0.95rem;
            }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }

        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }

        ::-webkit-scrollbar-thumb {
            background: #94a3b8;
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #64748b;
        }