/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d1b2a;
            --primary-light: #1b3a5c;
            --primary-dark: #070f17;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --accent-glow: rgba(240, 165, 0, 0.3);
            --secondary: #e94560;
            --secondary-hover: #d1304a;
            --bg-dark: #0a1421;
            --bg-card: #112240;
            --bg-card-hover: #1a2f52;
            --bg-section-alt: #0f1d30;
            --text-white: #f8f9fa;
            --text-light: #e0e0e0;
            --text-muted: #9aa8b9;
            --text-accent: #f0a500;
            --border-color: #1e3a5f;
            --border-glow: rgba(240, 165, 0, 0.15);
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-accent: 0 4px 24px rgba(240, 165, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
        }

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

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

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

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

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

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-white);
            font-weight: 700;
            line-height: 1.3;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        /* ===== Bootstrap Overrides ===== */
        .container {
            max-width: var(--container-max) !important;
        }

        .row {
            --bs-gutter-x: 24px;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
        }

        .site-header.scrolled {
            background: rgba(7, 15, 23, 0.97);
            box-shadow: 0 4px 40px rgba(0, 0, 0, 0.6);
        }

        .navbar {
            padding: 10px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
        }

        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white) !important;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            flex-shrink: 0;
        }

        .navbar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            font-weight: 900;
            box-shadow: 0 0 20px var(--accent-glow);
        }

        .navbar-brand .brand-text {
            background: linear-gradient(135deg, #f8f9fa, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-link-custom {
            color: var(--text-light) !important;
            font-weight: 500;
            padding: 6px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }

        .nav-link-custom:hover,
        .nav-link-custom.active {
            color: var(--text-white) !important;
            background: rgba(240, 165, 0, 0.12);
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
            box-shadow: 0 0 12px var(--accent-glow);
        }

        /* Search Bar (nav centerpiece) */
        .nav-search-wrap {
            flex: 1;
            max-width: 420px;
            margin: 0 20px;
            position: relative;
        }

        .nav-search-wrap .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.95rem;
            pointer-events: none;
        }

        .nav-search-wrap input {
            width: 100%;
            padding: 10px 18px 10px 44px;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            color: var(--text-white);
            font-size: 0.9rem;
            transition: var(--transition);
            outline: none;
        }

        .nav-search-wrap input::placeholder {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .nav-search-wrap input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 24px var(--accent-glow);
        }

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

        .nav-actions .btn-login {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .nav-actions .btn-login:hover {
            border-color: var(--accent);
            color: var(--text-white);
            background: rgba(240, 165, 0, 0.08);
        }

        .nav-actions .btn-register {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border: none;
            color: var(--primary-dark);
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px var(--accent-glow);
        }

        .nav-actions .btn-register:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--accent-glow);
        }

        .navbar-toggler-custom {
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            color: var(--text-light);
            font-size: 1.3rem;
            cursor: pointer;
            display: none;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* Mobile nav */
        .nav-collapse-mobile {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 16px 0 12px;
            border-top: 1px solid var(--border-color);
            margin-top: 10px;
        }

        .nav-collapse-mobile.show {
            display: flex;
        }

        .nav-collapse-mobile .nav-link-custom {
            padding: 10px 16px !important;
        }

        .nav-collapse-mobile .nav-search-wrap {
            max-width: 100%;
            margin: 8px 0 12px;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.85) 0%, rgba(13, 27, 42, 0.6) 50%, rgba(13, 27, 42, 0.85) 100%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 200px;
            background: linear-gradient(to top, var(--bg-dark), transparent);
            z-index: 2;
        }

        .hero-overlay-glow {
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(240, 165, 0, 0.08), transparent 70%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-overlay-glow-2 {
            position: absolute;
            bottom: -10%;
            left: -5%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(233, 69, 96, 0.06), transparent 70%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 165, 0, 0.15);
            border: 1px solid rgba(240, 165, 0, 0.3);
            border-radius: 50px;
            padding: 6px 20px 6px 10px;
            font-size: 0.85rem;
            color: var(--text-accent);
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.3);
            }
        }

        .hero-title {
            font-size: 3.8rem;
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent), #f8c630);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

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

        .hero-actions .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border: none;
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            box-shadow: 0 6px 30px var(--accent-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .hero-actions .btn-primary-custom:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 48px var(--accent-glow);
        }

        .hero-actions .btn-secondary-custom {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .hero-actions .btn-secondary-custom:hover {
            border-color: var(--accent);
            color: var(--text-white);
            background: rgba(240, 165, 0, 0.06);
        }

        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

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

        .hero-stat-item .num {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
        }

        .hero-stat-item .num .accent {
            color: var(--accent);
        }

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

        .hero-stat-divider {
            width: 1px;
            height: 50px;
            background: var(--border-color);
        }

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

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

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

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            height: 100%;
        }

        .card-custom:hover {
            background: var(--bg-card-hover);
            border-color: rgba(240, 165, 0, 0.2);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .card-custom .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(240, 165, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .card-custom:hover .card-icon {
            background: rgba(240, 165, 0, 0.18);
            transform: scale(1.05);
        }

        .card-custom .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }

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

        /* Cover card (for categories) */
        .cover-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            background: var(--bg-card);
        }

        .cover-card:hover {
            transform: translateY(-6px);
            border-color: rgba(240, 165, 0, 0.25);
            box-shadow: var(--shadow-md);
        }

        .cover-card .cover-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            transition: var(--transition);
        }

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

        .cover-card .cover-body {
            padding: 20px 20px 24px;
        }

        .cover-card .cover-body .tag {
            display: inline-block;
            background: rgba(240, 165, 0, 0.15);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 50px;
            margin-bottom: 10px;
        }

        .cover-card .cover-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .cover-card .cover-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== News / List Items ===== */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }

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

        .news-item:hover {
            padding-left: 12px;
        }

        .news-item .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }

        .news-item .news-info {
            flex: 1;
        }

        .news-item .news-info .news-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .news-item .news-info .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin: 4px 0 6px;
            transition: var(--transition);
            display: block;
        }

        .news-item .news-info .news-title:hover {
            color: var(--accent);
        }

        .news-item .news-info .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .news-item .news-info .news-meta i {
            margin-right: 4px;
        }

        /* ===== Stats / Numbers ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            border-color: rgba(240, 165, 0, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }

        .stat-card .stat-num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
        }

        .stat-card .stat-num .accent {
            color: var(--accent);
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ===== Steps / Process ===== */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .step-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(to right, var(--accent), var(--secondary), var(--accent));
            opacity: 0.3;
            z-index: 0;
        }

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

        .step-item .step-num {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            color: var(--primary-dark);
            font-size: 1.6rem;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 0 30px var(--accent-glow);
        }

        .step-item .step-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .step-item .step-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
            margin: 0 auto;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(240, 165, 0, 0.15);
        }

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

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

        .faq-item .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 100px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88), rgba(13, 27, 42, 0.7));
            z-index: 1;
        }

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

        .cta-section .cta-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta-section .cta-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-section .btn-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border: none;
            color: var(--primary-dark);
            padding: 16px 52px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: 0 6px 30px var(--accent-glow);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 48px var(--accent-glow);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-icon-sm {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            font-weight: 900;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-heading {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-bottom .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .footer-bottom .footer-social a:hover {
            background: rgba(240, 165, 0, 0.12);
            color: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 3rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .step-grid::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .site-header .navbar {
                flex-wrap: wrap;
            }

            .navbar-toggler-custom {
                display: block;
            }

            .nav-search-wrap.desktop {
                display: none;
            }

            .nav-actions .btn-login span,
            .nav-actions .btn-register span {
                display: none;
            }
            .nav-actions .btn-login i,
            .nav-actions .btn-register i {
                margin: 0;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-register {
                padding: 8px 14px;
                font-size: 0.85rem;
            }

            .hero-title {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat-divider {
                display: none;
            }
            .hero-stat-item .num {
                font-size: 1.8rem;
            }

            .section-title {
                font-size: 1.8rem;
            }
            .section-block {
                padding: 60px 0;
            }

            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card .stat-num {
                font-size: 2rem;
            }

            .step-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .news-item {
                flex-direction: column;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 160px;
            }

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

            .cta-section .cta-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .cover-card .cover-img {
                height: 160px;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ===== Utility ===== */
        .text-accent {
            color: var(--accent) !important;
        }
        .bg-accent {
            background: var(--accent) !important;
        }
        .btn-custom-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            border: none;
            color: var(--primary-dark);
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 700;
            transition: var(--transition);
            box-shadow: 0 4px 20px var(--accent-glow);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-custom-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px var(--accent-glow);
            color: var(--primary-dark);
        }

        .btn-custom-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-custom-outline:hover {
            border-color: var(--accent);
            color: var(--text-white);
            background: rgba(240, 165, 0, 0.06);
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--primary-light);
        }

        /* Selection */
        ::selection {
            background: rgba(240, 165, 0, 0.3);
            color: #fff;
        }

        /* Empty state for CMS */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .empty-state i {
            font-size: 2.4rem;
            color: var(--border-color);
            margin-bottom: 16px;
            display: block;
        }

        /* Accordion override for FAQ */
        .accordion-button:not(.collapsed) {
            background: transparent !important;
            color: var(--accent) !important;
            box-shadow: none !important;
        }
        .accordion-button:focus {
            box-shadow: none !important;
            border-color: var(--border-color) !important;
        }
        .accordion-button::after {
            filter: brightness(0.7) sepia(1) hue-rotate(10deg) saturate(3);
        }
        .accordion-body {
            background: transparent !important;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2d4a7a;
            --accent: #f4a261;
            --bg-dark: #0d1b2a;
            --bg-section: #f8f9fa;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #333344;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #e9ecef;
            --border-light: #f0f0f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --shadow-hover: 0 12px 36px rgba(0,0,0,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --spacer: 2rem;
            --max-width: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: #ffffff;
            line-height: 1.7;
            font-size: 16px;
        }

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

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

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

        /* --- Site Header --- */
        .site-header {
            background: var(--bg-dark);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
            border-bottom: 2px solid var(--primary);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: nowrap;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            text-decoration: none;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 12px rgba(230, 57, 70, 0.4);
        }

        .brand-text {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .brand-text span { color: var(--primary); }

        .nav-search-wrap.desktop {
            flex: 1;
            max-width: 480px;
            position: relative;
            margin: 0 16px;
        }
        .nav-search-wrap.desktop input {
            width: 100%;
            padding: 10px 18px 10px 44px;
            border: none;
            border-radius: 30px;
            background: rgba(255,255,255,0.12);
            color: #fff;
            font-size: 15px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .nav-search-wrap.desktop input::placeholder { color: rgba(255,255,255,0.5); }
        .nav-search-wrap.desktop input:focus {
            outline: none;
            background: rgba(255,255,255,0.22);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.3);
        }
        .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255,255,255,0.5);
            font-size: 16px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .navbar-toggler-custom {
            background: none;
            border: none;
            color: #fff;
            font-size: 22px;
            display: none;
            padding: 4px 8px;
            cursor: pointer;
        }

        .btn-login, .btn-register {
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-login {
            background: transparent;
            border: 1.5px solid rgba(255,255,255,0.25);
            color: #fff;
        }
        .btn-login:hover { background: rgba(255,255,255,0.1); color: #fff; border-color: var(--primary); }
        .btn-register {
            background: var(--primary);
            color: #fff;
            border: 1.5px solid var(--primary);
        }
        .btn-register:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(230,57,70,0.4); }

        .nav-collapse-mobile {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 16px 0 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .nav-collapse-mobile.open { display: flex; }
        .nav-link-custom {
            color: rgba(255,255,255,0.7);
            font-size: 16px;
            font-weight: 500;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-link-custom:hover, .nav-link-custom.active { background: rgba(255,255,255,0.08); color: #fff; }
        .nav-link-custom.active { color: var(--primary); border-left: 3px solid var(--primary); }
        .nav-collapse-mobile .nav-search-wrap {
            position: relative;
            margin-top: 8px;
        }
        .nav-collapse-mobile .nav-search-wrap input {
            width: 100%;
            padding: 10px 16px 10px 40px;
            border: none;
            border-radius: 30px;
            background: rgba(255,255,255,0.12);
            color: #fff;
            font-size: 15px;
        }
        .nav-collapse-mobile .nav-search-wrap input::placeholder { color: rgba(255,255,255,0.5); }
        .nav-collapse-mobile .nav-search-wrap input:focus { outline: none; background: rgba(255,255,255,0.2); }
        .nav-collapse-mobile .nav-search-wrap .search-icon { left: 14px; }

        /* --- Page Banner --- */
        .page-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162a44 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .page-banner .breadcrumb-custom {
            color: rgba(255,255,255,0.6);
            font-size: 14px;
        }
        .page-banner .breadcrumb-custom a { color: var(--primary-light); }
        .page-banner .breadcrumb-custom a:hover { color: #fff; }
        .page-banner .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 12px;
            color: rgba(255,255,255,0.65);
            font-size: 14px;
        }
        .page-banner .meta-info i { margin-right: 6px; }
        .page-banner .category-tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }

        /* --- Article Content --- */
        .article-section {
            padding: 60px 0;
            background: #fff;
        }
        .article-main {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px;
        }
        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-body h2, .article-body h3 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--text-dark);
        }
        .article-body h2 { font-size: 26px; }
        .article-body h3 { font-size: 21px; }
        .article-body p { margin-bottom: 18px; }
        .article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #f8f9fa;
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #555;
            font-style: italic;
        }

        .not-found-wrap {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-wrap i { font-size: 64px; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-wrap p { font-size: 18px; color: var(--text-muted); }

        /* --- Sidebar / Related --- */
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .related-list { list-style: none; padding: 0; margin: 0; }
        .related-list li { padding: 10px 0; border-bottom: 1px solid var(--border-light); }
        .related-list li:last-child { border-bottom: none; }
        .related-list a {
            color: var(--text-body);
            font-size: 15px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .related-list a:hover { color: var(--primary); }
        .related-list .related-thumb {
            width: 70px;
            height: 50px;
            border-radius: 6px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-section);
        }
        .related-list .related-title { flex: 1; font-weight: 500; line-height: 1.4; }
        .related-list .related-date { font-size: 12px; color: var(--text-muted); display: block; margin-top: 4px; }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud .tag-item {
            background: var(--bg-section);
            color: var(--text-body);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
        }
        .tag-cloud .tag-item:hover { background: var(--primary); color: #fff; }

        /* --- CTA Section --- */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a44 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.7);
            font-size: 18px;
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--primary);
            color: #fff;
            padding: 14px 40px;
            border-radius: 30px;
            font-size: 18px;
            font-weight: 700;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,57,70,0.4); }

        /* --- Site Footer --- */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
            border-top: 3px solid var(--primary);
        }
        .footer-brand {
            font-size: 26px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .brand-icon-sm {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }
        .footer-desc { font-size: 14px; line-height: 1.8; max-width: 320px; }
        .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .copyright { font-size: 13px; color: rgba(255,255,255,0.5); }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a {
            color: rgba(255,255,255,0.5);
            font-size: 20px;
            transition: var(--transition);
        }
        .footer-social a:hover { color: var(--primary-light); transform: translateY(-2px); }

        /* --- Responsive --- */
        @media (max-width: 1024px) {
            .nav-search-wrap.desktop { max-width: 320px; }
            .article-main { padding: 30px; }
        }

        @media (max-width: 768px) {
            .navbar { padding: 12px 0; }
            .brand-text { font-size: 20px; }
            .nav-search-wrap.desktop { display: none; }
            .navbar-toggler-custom { display: block; }
            .btn-login span, .btn-register span { display: none; }
            .btn-login, .btn-register { padding: 8px 14px; }
            .btn-login i, .btn-register i { margin: 0; }
            .page-banner { padding: 40px 0 30px; min-height: 180px; }
            .page-banner h1 { font-size: 24px; }
            .page-banner .meta-info { gap: 12px; font-size: 13px; flex-wrap: wrap; }
            .article-section { padding: 32px 0; }
            .article-main { padding: 20px; border-radius: var(--radius-sm); }
            .article-body { font-size: 16px; }
            .article-body h2 { font-size: 22px; }
            .article-body h3 { font-size: 18px; }
            .cta-section h2 { font-size: 24px; }
            .cta-section p { font-size: 16px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-social { justify-content: center; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .brand-text { font-size: 17px; }
            .brand-icon { width: 34px; height: 34px; font-size: 18px; }
            .page-banner h1 { font-size: 20px; }
            .article-main { padding: 16px; }
            .article-body { font-size: 15px; }
            .sidebar-card { padding: 16px; }
            .related-list a { flex-direction: column; }
            .related-list .related-thumb { width: 100%; height: 80px; }
            .cta-section .btn-cta { padding: 12px 28px; font-size: 16px; }
        }

/* roulang page: category1 */
/* ========== Design Variables ========== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #f1c0c0;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --accent-glow: rgba(244, 162, 97, 0.3);
            --bg-dark: #0b0f1a;
            --bg-darker: #060912;
            --bg-card: #111827;
            --bg-card-hover: #1a2235;
            --bg-elevated: #1e293b;
            --text-light: #f8f9fa;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-active: rgba(230, 57, 70, 0.5);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
            --spacing-section: 5rem;
            --spacing-block: 3rem;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 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-color: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        a:hover {
            color: var(--accent);
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input,
        textarea {
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-light);
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.8rem);
        }
        h4 {
            font-size: clamp(1.05rem, 1.8vw, 1.35rem);
        }

        p {
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ========== Container ========== */
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* ========== Site Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .site-header .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 0;
            gap: 1.5rem;
            flex-wrap: nowrap;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 20px rgba(230, 57, 70, 0.3);
        }

        .brand-text {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            background: linear-gradient(135deg, #f8f9fa, #e2e8f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Search */
        .nav-search-wrap {
            display: flex;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 40px;
            padding: 0.35rem 1.2rem;
            flex: 1;
            max-width: 460px;
            transition: var(--transition);
        }

        .nav-search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }

        .nav-search-wrap .search-icon {
            color: var(--text-dim);
            font-size: 0.9rem;
            margin-right: 0.7rem;
        }

        .nav-search-wrap input {
            width: 100%;
            padding: 0.45rem 0;
            font-size: 0.92rem;
            background: transparent;
            color: var(--text-light);
            border: none;
            outline: none;
        }

        .nav-search-wrap input::placeholder {
            color: var(--text-dim);
            font-weight: 300;
        }

        .nav-search-wrap.desktop {
            display: flex;
        }

        .nav-search-wrap.mobile-only {
            display: none;
        }

        /* Nav actions */
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .navbar-toggler-custom {
            display: none;
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background: var(--bg-card);
        }

        .btn-login,
        .btn-register {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.45rem 1.2rem;
            border-radius: 40px;
            font-size: 0.88rem;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-login {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-light);
        }

        .btn-login:hover {
            background: var(--bg-card);
            border-color: var(--text-dim);
            color: #fff;
        }

        .btn-register {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
        }

        .btn-register:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        /* Mobile collapse */
        .nav-collapse-mobile {
            display: none;
            flex-direction: column;
            gap: 0.5rem;
            padding: 1rem 0 1.5rem;
            border-top: 1px solid var(--border-color);
            margin-top: 0.5rem;
        }

        .nav-collapse-mobile.open {
            display: flex;
        }

        .nav-link-custom {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.6rem 1rem;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .nav-link-custom:hover {
            background: var(--bg-card);
            color: var(--text-light);
        }

        .nav-link-custom.active {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary);
            border-left: 3px solid var(--primary);
        }

        .nav-link-custom .me-2 {
            margin-right: 0.5rem;
        }

        /* ========== Hero / Banner ========== */
        .category-hero {
            position: relative;
            padding: 9rem 0 5rem;
            background: var(--bg-darker);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .category-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 26, 0.92) 0%, rgba(11, 15, 26, 0.6) 60%, transparent 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.3rem 1.2rem;
            background: rgba(230, 57, 70, 0.15);
            border: 1px solid rgba(230, 57, 70, 0.3);
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary-light);
            letter-spacing: 0.05em;
            margin-bottom: 1.2rem;
        }

        .category-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 60%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            margin-top: 1.5rem;
        }

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

        .hero-stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-light);
            display: block;
            line-height: 1.2;
        }

        .hero-stat-item .num .highlight {
            color: var(--accent);
        }

        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-dim);
            font-weight: 400;
        }

        /* ========== Buttons ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 2rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 40px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 2rem;
            background: transparent;
            color: var(--text-light);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 40px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.08);
            transform: translateY(-2px);
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: var(--spacing-section) 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }

        .section-header h2 {
            margin-bottom: 0.8rem;
        }

        .section-header p {
            max-width: 620px;
            margin: 0 auto;
            font-size: 1.05rem;
        }

        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.25rem 1rem;
            background: rgba(230, 57, 70, 0.08);
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.03em;
            margin-bottom: 1rem;
        }

        .bg-elevated {
            background: var(--bg-elevated);
        }

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

        /* ========== Game Cards Grid ========== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.8rem;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .game-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .game-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-active);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
        }

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

        .game-card-icon {
            width: 48px;
            height: 48px;
            background: rgba(230, 57, 70, 0.1);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
        }

        .game-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .game-card p {
            font-size: 0.92rem;
            color: var(--text-dim);
            margin-bottom: 1.2rem;
            line-height: 1.6;
        }

        .game-card .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
        }

        .game-card .tags .badge-tag {
            padding: 0.2rem 0.8rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 40px;
            font-size: 0.75rem;
            color: var(--text-dim);
            font-weight: 400;
        }

        .game-card .tags .badge-hot {
            background: rgba(230, 57, 70, 0.15);
            border-color: rgba(230, 57, 70, 0.2);
            color: var(--primary-light);
            font-weight: 600;
        }

        /* ========== Match Schedule ========== */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.8rem;
            transition: var(--transition);
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .match-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-active);
        }

        .match-info {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .match-info .game-icon-sm {
            width: 36px;
            height: 36px;
            background: rgba(244, 162, 97, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent);
        }

        .match-info .teams {
            font-weight: 600;
            color: var(--text-light);
            font-size: 0.95rem;
        }

        .match-info .teams span {
            color: var(--text-muted);
            font-weight: 400;
        }

        .match-info .tourney {
            font-size: 0.8rem;
            color: var(--text-dim);
            background: rgba(255, 255, 255, 0.05);
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
        }

        .match-time {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .match-time .time-badge {
            padding: 0.3rem 1rem;
            background: rgba(230, 57, 70, 0.1);
            border: 1px solid rgba(230, 57, 70, 0.15);
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary-light);
        }

        .match-time .odds-badge {
            padding: 0.3rem 1rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 40px;
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 600;
        }

        /* ========== Guide Steps ========== */
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            counter-reset: step;
        }

        .guide-step {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
        }

        .guide-step:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-active);
            transform: translateY(-4px);
        }

        .guide-step .step-num {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            box-shadow: 0 0 20px rgba(230, 57, 70, 0.25);
        }

        .guide-step h4 {
            font-size: 1.05rem;
            margin-bottom: 0.5rem;
        }

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

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.2);
        }

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            background: transparent;
            text-align: left;
            transition: var(--transition);
            gap: 1rem;
        }

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

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        /* ========== CTA ========== */
        .cta-block {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 3.5rem 3rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.08), transparent 70%);
            pointer-events: none;
        }

        .cta-block h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 0.8rem;
        }

        .cta-block p {
            max-width: 560px;
            margin: 0 auto 1.8rem;
            font-size: 1rem;
        }

        .cta-block .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        /* ========== Footer (shared) ========== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 1rem;
        }

        .brand-icon-sm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-size: 1.1rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-dim);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 1.2rem;
            letter-spacing: 0.02em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .footer-links li a {
            font-size: 0.88rem;
            color: var(--text-dim);
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            padding-top: 2rem;
            margin-top: 2.5rem;
            border-top: 1px solid var(--border-color);
        }

        .copyright {
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        .copyright a {
            color: var(--text-dim);
        }

        .copyright a:hover {
            color: var(--accent);
        }

        .footer-social {
            display: flex;
            gap: 0.8rem;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dim);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            :root {
                --spacing-section: 4rem;
            }
            .nav-search-wrap.desktop {
                display: none;
            }
            .nav-search-wrap.mobile-only {
                display: flex;
            }
            .nav-collapse-mobile .nav-search-wrap {
                display: flex;
                margin-top: 0.5rem;
                max-width: 100%;
            }
            .category-hero {
                padding: 7rem 0 4rem;
                min-height: auto;
            }
            .hero-stats {
                gap: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
            }
            .navbar-toggler-custom {
                display: block;
            }
            .btn-login span,
            .btn-register span {
                display: none;
            }
            .btn-login,
            .btn-register {
                padding: 0.45rem 0.9rem;
            }
            .btn-login i,
            .btn-register i {
                font-size: 1.1rem;
            }
            .nav-actions {
                gap: 0.3rem;
            }
            .category-hero h1 {
                font-size: clamp(1.8rem, 6vw, 2.4rem);
            }
            .category-hero p {
                font-size: 0.95rem;
            }
            .hero-stats {
                gap: 1.2rem;
            }
            .hero-stat-item .num {
                font-size: 1.4rem;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
                gap: 1.2rem;
            }
            .match-item {
                padding: 1rem 1.2rem;
                flex-direction: column;
                align-items: flex-start;
            }
            .match-info {
                width: 100%;
            }
            .match-time {
                width: 100%;
                justify-content: flex-start;
            }
            .guide-steps {
                grid-template-columns: 1fr 1fr;
                gap: 1.2rem;
            }
            .cta-block {
                padding: 2.5rem 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 0.75rem;
            }
            .category-hero {
                padding: 6rem 0 3rem;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .guide-steps {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 0.8rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 1rem 1.2rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                padding: 0.6rem 1.5rem;
                font-size: 0.88rem;
            }
            .cta-block .btn-group {
                flex-direction: column;
                align-items: center;
            }
        }

        /* ========== Bootstrap Overrides ========== */
        .row.g-4>[class*="col-"] {
            padding: 0 0.75rem;
        }

        .row.g-4 {
            margin: 0 -0.75rem;
        }

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

        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 0.5rem;
        }
        .mt-3 {
            margin-top: 1rem;
        }
        .mt-4 {
            margin-top: 1.5rem;
        }
        .mb-3 {
            margin-bottom: 1rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }
        .gap-2 {
            gap: 0.5rem;
        }
        .gap-3 {
            gap: 1rem;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .d-flex {
            display: flex;
        }
        .align-center {
            align-items: center;
        }
        .justify-center {
            justify-content: center;
        }
        .text-center {
            text-align: center;
        }