/* roulang page: index */
:root {
            --primary: #C41E3A;
            --primary-dark: #9B1630;
            --primary-light: #E8485E;
            --accent: #D4A843;
            --accent-dark: #B8912F;
            --accent-light: #E8C76A;
            --bg: #F8F9FA;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --bg-section: #F0F1F3;
            --text: #1A1A2E;
            --text-secondary: #5A5D6E;
            --text-muted: #8B8FA3;
            --text-light: #B0B3C2;
            --border: #E2E4E9;
            --border-light: #EEF0F3;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.10), 0 4px 10px rgba(0, 0, 0, 0.05);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12), 0 6px 14px rgba(0, 0, 0, 0.06);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1260px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .navbar {
            padding: 0;
            min-height: 68px;
        }
        .navbar-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary) !important;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0;
            transition: color var(--transition);
        }
        .navbar-brand:hover {
            color: var(--primary-dark) !important;
        }
        .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text) !important;
            padding: 10px 16px !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(196, 30, 58, 0.04);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: rgba(196, 30, 58, 0.08);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta-btn {
            background: var(--primary) !important;
            color: #fff !important;
            border-radius: 50px !important;
            padding: 10px 22px !important;
            font-weight: 600 !important;
            font-size: 0.9rem !important;
            transition: all var(--transition) !important;
            border: none !important;
            white-space: nowrap;
        }
        .nav-cta-btn:hover {
            background: var(--primary-dark) !important;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #fff !important;
        }

        .mega-dropdown-toggle {
            cursor: pointer;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            background: none;
            border: none;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .mega-dropdown-toggle:hover {
            color: var(--primary);
            background: rgba(196, 30, 58, 0.04);
        }
        .mega-dropdown-toggle i {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }
        .mega-dropdown-toggle[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: 100%;
            right: 0;
            width: 520px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-light);
            padding: 20px 24px;
            display: none;
            z-index: 1060;
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.2s ease, transform 0.25s ease;
        }
        .mega-panel.show {
            display: block;
            opacity: 1;
            transform: translateY(0);
        }
        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }
        .mega-panel .mega-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 14px 12px;
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            text-decoration: none;
            color: var(--text);
            display: block;
        }
        .mega-panel .mega-card:hover {
            background: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow);
            transform: translateY(-2px);
            color: var(--primary);
        }
        .mega-panel .mega-card .mega-icon {
            font-size: 1.8rem;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .mega-panel .mega-card .mega-label {
            font-weight: 600;
            font-size: 0.9rem;
        }
        .mega-panel .mega-card .mega-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .navbar-toggler {
            border: 1.5px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 6px 10px;
            transition: all var(--transition);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.15);
            border-color: var(--primary);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,26,46,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--bg-white);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                padding: 16px 20px;
                box-shadow: var(--shadow-md);
                margin-top: 4px;
                border-top: 1px solid var(--border-light);
            }
            .navbar-nav {
                gap: 0;
            }
            .navbar-nav .nav-link {
                padding: 12px 14px !important;
                border-radius: var(--radius-sm);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                margin-top: 4px;
                background: transparent;
                transform: none;
            }
            .mega-panel.show {
                display: block;
                opacity: 1;
                transform: none;
            }
            .mega-panel .mega-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .nav-cta-btn {
                margin-top: 8px;
                text-align: center;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: linear-gradient(135deg, #1A1A2E 0%, #2D1B2E 40%, #1A1A2E 100%);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 26, 46, 0.82) 0%, rgba(26, 26, 46, 0.88) 60%, rgba(26, 26, 46, 0.94) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 80px 0 70px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(212, 168, 67, 0.2);
            border: 1px solid rgba(212, 168, 67, 0.4);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero-title span {
            color: var(--accent-light);
            position: relative;
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-hero-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .btn-hero-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(196, 30, 58, 0.4);
            color: #fff;
        }
        .btn-hero-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 991.98px) {
            .hero-section {
                min-height: 520px;
            }
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-desc {
                font-size: 1rem;
                max-width: 100%;
            }
        }
        @media (max-width: 767.98px) {
            .hero-section {
                min-height: 460px;
                background-position: 65% center;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-buttons {
                flex-direction: column;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
                padding: 13px 24px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section {
                min-height: 420px;
            }
            .hero-title {
                font-size: 1.6rem;
                letter-spacing: 0;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-badge {
                font-size: 0.78rem;
                padding: 5px 12px;
            }
        }

        /* ===== Section Common ===== */
        .section-padding {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 8px;
        }
        .section-header .section-title {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-header .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 767.98px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header .section-title {
                font-size: 1.7rem;
            }
            .section-header .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ===== Stats Cards ===== */
        .stats-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
        }
        .stat-card {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            transition: all var(--transition);
            border: 1px solid transparent;
            height: 100%;
        }
        .stat-card:hover {
            background: #fff;
            border-color: var(--border);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .stat-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-number .stat-unit {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-secondary);
        }
        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        @media (max-width: 767.98px) {
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .stat-card {
                padding: 20px 14px;
            }
        }

        /* ===== Advantage Cards ===== */
        .advantage-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .advantage-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .advantage-card:hover::before {
            opacity: 1;
        }
        .advantage-card .adv-icon {
            width: 52px;
            height: 52px;
            background: rgba(196, 30, 58, 0.08);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: all var(--transition);
        }
        .advantage-card:hover .adv-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .advantage-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .advantage-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Category Cards ===== */
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            display: block;
            text-decoration: none;
            color: var(--text);
        }
        .category-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
            color: var(--text);
        }
        .category-card .cat-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f0f0f0;
        }
        .category-card .cat-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .category-card:hover .cat-img-wrap img {
            transform: scale(1.06);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(26, 26, 46, 0.7) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }
        .category-card .cat-tag {
            background: var(--accent);
            color: #1A1A2E;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .category-card .cat-body {
            padding: 18px 16px;
        }
        .category-card .cat-body h4 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .category-card .cat-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== Brand Story ===== */
        .brand-story-section {
            background: var(--bg-white);
        }
        .brand-story-img {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .brand-story-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .brand-story-text h3 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .brand-story-text p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .brand-story-text .story-highlight {
            display: inline-block;
            background: rgba(196, 30, 58, 0.06);
            border-left: 3px solid var(--primary);
            padding: 12px 18px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-weight: 500;
            color: var(--text);
            margin-top: 8px;
        }

        @media (max-width: 767.98px) {
            .brand-story-text h3 {
                font-size: 1.4rem;
            }
            .brand-story-text p {
                font-size: 0.95rem;
            }
        }

        /* ===== Brand Intro Block ===== */
        .brand-intro-section {
            background: var(--bg);
        }
        .brand-intro-card {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            position: relative;
        }
        .brand-intro-card .intro-quote-icon {
            font-size: 3rem;
            color: rgba(196, 30, 58, 0.12);
            position: absolute;
            top: 24px;
            left: 28px;
            line-height: 1;
            pointer-events: none;
        }
        .brand-intro-card h3 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
            position: relative;
            z-index: 1;
        }
        .brand-intro-card p {
            font-size: 1.02rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }
        @media (max-width: 767.98px) {
            .brand-intro-card {
                padding: 28px 20px;
            }
            .brand-intro-card h3 {
                font-size: 1.3rem;
            }
            .brand-intro-card p {
                font-size: 0.95rem;
            }
        }

        /* ===== Reviews ===== */
        .review-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            position: relative;
        }
        .review-card:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .review-card .review-stars {
            color: var(--accent);
            font-size: 0.9rem;
            margin-bottom: 10px;
            letter-spacing: 1px;
        }
        .review-card .review-text {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
            font-style: italic;
        }
        .review-card .review-author {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .review-card .review-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .accordion-item {
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius) !important;
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .accordion-item:hover {
            border-color: var(--border) !important;
        }
        .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text) !important;
            padding: 18px 20px;
            background: var(--bg-white) !important;
            transition: all var(--transition);
            border-radius: var(--radius) !important;
            box-shadow: none !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary) !important;
            background: rgba(196, 30, 58, 0.03) !important;
            border-bottom: 1px solid var(--border-light);
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1) !important;
        }
        .accordion-button::after {
            filter: brightness(0.4);
            transition: transform 0.35s ease;
        }
        .accordion-body {
            padding: 18px 20px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== News ===== */
        .news-section {
            background: var(--bg);
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .news-card .news-img-wrap {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #f0f0f0;
        }
        .news-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-img-wrap img {
            transform: scale(1.05);
        }
        .news-card .news-body {
            padding: 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .news-card .news-title {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }
        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .news-card .news-link {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition);
        }
        .news-card .news-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2D1B2E 50%, var(--bg-dark) 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 46, 0.85);
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 60px 0;
        }
        .cta-section h3 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn-cta {
            background: var(--accent);
            color: #1A1A2E;
            border: none;
            padding: 15px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            letter-spacing: 0.5px;
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 168, 67, 0.4);
            color: #1A1A2E;
        }

        @media (max-width: 767.98px) {
            .cta-section h3 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== Partners ===== */
        .partners-section {
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
        }
        .partner-item {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 16px 20px;
            background: var(--bg);
            border-radius: var(--radius);
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid transparent;
            text-align: center;
        }
        .partner-item:hover {
            background: #fff;
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
            color: var(--text);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 20px;
        }
        .site-footer .footer-brand {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 20px;
            max-width: 320px;
        }
        .site-footer h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding-top: 18px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 767.98px) {
            .site-footer {
                padding: 36px 0 16px;
            }
            .site-footer .footer-desc {
                max-width: 100%;
            }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-on-scroll {
            animation: fadeInUp 0.6s ease forwards;
        }

        /* ===== Utility ===== */
        .text-primary-brand {
            color: var(--primary) !important;
        }
        .text-accent-brand {
            color: var(--accent) !important;
        }
        .bg-primary-brand {
            background-color: var(--primary) !important;
        }
        .rounded-xl {
            border-radius: var(--radius-xl) !important;
        }

/* roulang page: category3 */
:root {
            --brand-primary: #1a56db;
            --brand-primary-dark: #1347b3;
            --brand-primary-light: #e8f0fe;
            --brand-secondary: #f59e0b;
            --brand-secondary-dark: #d97706;
            --brand-accent: #10b981;
            --brand-deep: #0f172a;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-page: #f8fafc;
            --bg-white: #ffffff;
            --bg-light: #f1f5f9;
            --bg-card: #ffffff;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --section-gap: 72px;
            --section-gap-sm: 48px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== HEADER ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .navbar {
            padding: 12px 0;
            min-height: 64px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-deep) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand-primary) 0%, #2563eb 100%);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 2px;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: 8px 16px !important;
            border-radius: 6px;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: var(--brand-primary-light);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary) !important;
            background: var(--brand-primary-light);
            font-weight: 600;
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.15);
            border-color: var(--brand-primary);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,41,59,0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Panel */
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 8px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-color);
            padding: 20px;
            z-index: 1060;
            min-width: 420px;
        }
        .mega-panel.show {
            display: block;
            animation: fadeInDown 0.2s ease;
        }
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .mega-card:hover {
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .mega-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background: var(--brand-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .btn-mega-toggle {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-mega-toggle:hover {
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            background: linear-gradient(170deg, #0f172a 0%, #1e3a5f 40%, #1a4b8c 100%);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.06);
            pointer-events: none;
        }
        .page-banner .breadcrumb {
            margin-bottom: 16px;
            font-size: 0.85rem;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb .active {
            color: rgba(255, 255, 255, 0.9);
        }
        .page-banner .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.4);
        }
        .page-banner h1 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2.25rem;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 1;
            margin-bottom: 8px;
        }
        .page-banner .banner-subtitle {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            position: relative;
            z-index: 1;
        }
        .badge-lottery {
            display: inline-block;
            background: var(--brand-secondary);
            color: #1e293b;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        /* ========== SECTION TITLES ========== */
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            color: var(--brand-deep);
            letter-spacing: -0.3px;
            margin-bottom: 8px;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 32px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--brand-primary-light);
            color: var(--brand-primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .text-accent {
            color: var(--brand-secondary);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-xs);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #cbd5e1;
        }
        .card-custom .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-custom .card-icon.blue {
            background: #e8f0fe;
            color: #1a56db;
        }
        .card-custom .card-icon.amber {
            background: #fef3c7;
            color: #d97706;
        }
        .card-custom .card-icon.green {
            background: #d1fae5;
            color: #059669;
        }
        .card-custom h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--brand-deep);
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== DATA CARD ========== */
        .data-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: all var(--transition-normal);
        }
        .data-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .data-card .data-value {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2rem;
            color: var(--brand-primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .data-card .data-trend {
            font-size: 0.8rem;
            font-weight: 600;
            margin-top: 6px;
        }
        .data-card .data-trend.up {
            color: #10b981;
        }
        .data-card .data-trend.down {
            color: #ef4444;
        }

        /* ========== LOTTERY BALL ========== */
        .lottery-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            font-weight: 800;
            font-size: 1.25rem;
            color: #fff;
            background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
            box-shadow: 0 3px 10px rgba(229, 62, 62, 0.3);
            margin: 0 4px;
        }
        .lottery-ball.blue {
            background: linear-gradient(135deg, #3182ce 0%, #2b6cb0 100%);
            box-shadow: 0 3px 10px rgba(49, 130, 206, 0.3);
        }
        .lottery-balls-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        /* ========== STAT BADGE ========== */
        .stat-badge {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.2px;
        }
        .stat-badge.warm {
            background: #fef3c7;
            color: #92400e;
        }
        .stat-badge.hot {
            background: #fee2e2;
            color: #991b1b;
        }
        .stat-badge.cold {
            background: #e0f2fe;
            color: #075985;
        }

        /* ========== FAQ ACCORDION ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--bg-white);
            transition: all var(--transition-fast);
        }
        .accordion-custom .accordion-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: var(--bg-white);
            padding: 16px 20px;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
            box-shadow: none !important;
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--brand-primary-light);
            border-bottom-left-radius: 0 !important;
            border-bottom-right-radius: 0 !important;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12) !important;
            border-color: var(--brand-primary);
        }
        .accordion-custom .accordion-body {
            padding: 16px 20px 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            background: #fafbfc;
            border-bottom-left-radius: var(--radius-md);
            border-bottom-right-radius: var(--radius-md);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.08);
            pointer-events: none;
        }
        .cta-section h2 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            position: relative;
            z-index: 1;
            margin-bottom: 24px;
        }
        .btn-brand {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .btn-brand-primary {
            background: var(--brand-secondary);
            color: #1e293b;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }
        .btn-brand-primary:hover {
            background: #fbbf24;
            color: #1e293b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
        }
        .btn-brand-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-brand-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-brand-lg {
            padding: 14px 36px;
            font-size: 1rem;
            border-radius: 50px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: all var(--transition-normal);
            cursor: pointer;
            border: none;
            text-decoration: none;
            display: inline-block;
        }

        /* ========== TABLE STYLE ========== */
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            background: var(--bg-white);
        }
        .table-custom thead th {
            background: #f8fafc;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 14px 16px;
            border-bottom: 2px solid var(--border-color);
            white-space: nowrap;
        }
        .table-custom tbody td {
            padding: 12px 16px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
            vertical-align: middle;
        }
        .table-custom tbody tr:hover {
            background: #fafbfc;
        }
        .table-custom tbody tr:last-child td {
            border-bottom: none;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
            margin-top: var(--section-gap);
        }
        .site-footer .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 12px;
        }
        .site-footer h5 {
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .mega-panel {
                min-width: 320px;
                right: -40px;
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-gap: 48px;
                --section-gap-sm: 32px;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .navbar-nav {
                padding-top: 8px;
                gap: 1px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                border-radius: 6px;
            }
            .mega-panel {
                position: static;
                min-width: 100%;
                margin-top: 4px;
                box-shadow: none;
                border: 1px solid var(--border-color);
                border-radius: var(--radius-md);
            }
            .section-title {
                font-size: 1.35rem;
            }
            .card-custom {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .data-card .data-value {
                font-size: 1.5rem;
            }
            .lottery-ball {
                width: 38px;
                height: 38px;
                font-size: 1rem;
                margin: 0 2px;
            }
            .table-custom thead th,
            .table-custom tbody td {
                padding: 10px 10px;
                font-size: 0.8rem;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .site-footer .col-md-4,
            .site-footer .col-md-2 {
                margin-bottom: 20px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .navbar-brand {
                font-size: 1.15rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .btn-brand-lg {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .lottery-ball {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .card-custom {
                padding: 16px 14px;
            }
            .data-card {
                padding: 16px;
            }
            .cta-section {
                padding: 24px 16px;
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root {
            --brand-red: #D4302B;
            --brand-red-dark: #B82622;
            --brand-red-light: #FEF2F1;
            --brand-gold: #D4A843;
            --brand-gold-light: #FDF6E8;
            --brand-navy: #1A1A2E;
            --brand-navy-light: #252542;
            --text-primary: #1F2937;
            --text-secondary: #4B5563;
            --text-weak: #9CA3AF;
            --text-white: #FFFFFF;
            --bg-page: #F8F9FA;
            --bg-white: #FFFFFF;
            --bg-light: #F3F4F6;
            --border-light: #E5E7EB;
            --border-medium: #D1D5DB;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-lg: 1.125rem;
            --font-xl: 1.25rem;
            --font-2xl: 1.5rem;
            --font-3xl: 1.875rem;
            --font-4xl: 2.25rem;
            --font-5xl: 3rem;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Helvetica Neue', sans-serif;
            font-size: var(--font-base);
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--brand-red);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        :focus-visible {
            outline: 2px solid var(--brand-red);
            outline-offset: 2px;
            border-radius: 3px;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1260px;
            }
        }

        /* ========== HEADER & NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .navbar {
            padding: 10px 0;
            min-height: 62px;
            flex-wrap: wrap;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: var(--font-xl);
            color: var(--brand-navy) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand-red) 0%, #E85D50 100%);
            color: #fff;
            font-weight: 800;
            font-size: var(--font-lg);
            border-radius: var(--radius-md);
            letter-spacing: -0.5px;
            box-shadow: 0 3px 10px rgba(212, 48, 43, 0.3);
        }
        .navbar-nav {
            gap: 2px;
        }
        .navbar-nav .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: var(--font-sm);
            color: var(--text-secondary) !important;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-red) !important;
            background: var(--brand-red-light);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: var(--brand-red) !important;
            font-weight: 600;
            box-shadow: 0 3px 10px rgba(212, 48, 43, 0.28);
        }
        .navbar-nav .nav-link.active:hover {
            background: var(--brand-red-dark) !important;
            color: #fff !important;
        }

        /* Mega Toggle */
        .mega-toggle {
            border: 1.5px solid var(--border-medium) !important;
            color: var(--text-secondary) !important;
            font-size: var(--font-sm);
            font-weight: 500;
            padding: 7px 15px;
            border-radius: var(--radius-full);
            background: var(--bg-white);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .mega-toggle:hover {
            border-color: var(--brand-red) !important;
            color: var(--brand-red) !important;
            background: var(--brand-red-light);
        }
        .mega-toggle i {
            font-size: 0.7rem;
            margin-left: 5px;
            transition: transform var(--transition-fast);
        }
        .mega-toggle[aria-expanded="true"] i {
            transform: rotate(180deg);
        }

        /* Mega Panel */
        .mega-panel {
            position: absolute;
            top: calc(100% + 14px);
            right: 0;
            width: 520px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-light);
            padding: 20px 18px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all var(--transition-base);
            z-index: 1060;
        }
        .mega-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            transition: all var(--transition-fast);
            color: var(--text-primary) !important;
            text-decoration: none;
        }
        .mega-card:hover {
            background: var(--brand-red-light);
            color: var(--brand-red) !important;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .mega-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, #F3F4F6, #E5E7EB);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--brand-navy);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .mega-card:hover .mega-icon {
            background: linear-gradient(135deg, var(--brand-red), #E85D50);
            color: #fff;
        }
        .mega-info {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mega-info strong {
            font-size: var(--font-sm);
            font-weight: 600;
        }
        .mega-info span {
            font-size: var(--font-xs);
            color: var(--text-weak);
        }
        .mega-card.current-page {
            background: #FFF7F6;
            border: 1.5px solid var(--brand-red);
        }
        .mega-card.current-page .mega-icon {
            background: linear-gradient(135deg, var(--brand-red), #E85D50);
            color: #fff;
        }

        .navbar-toggler {
            border: none;
            padding: 6px 8px;
            color: var(--text-primary);
            box-shadow: none !important;
        }
        .navbar-toggler:focus {
            outline: 2px solid var(--brand-red);
            outline-offset: 2px;
            border-radius: 6px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(31,41,55,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: var(--bg-white);
                border-radius: var(--radius-lg);
                padding: 16px 12px;
                margin-top: 10px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border-light);
            }
            .navbar-nav {
                gap: 4px;
                margin-bottom: 12px;
            }
            .navbar-nav .nav-link {
                padding: 10px 16px;
                font-size: var(--font-base);
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                padding: 8px 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                display: none;
            }
            .mega-panel.show {
                display: block;
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
            .d-flex.align-items-center.gap-2 {
                flex-direction: column;
                align-items: stretch !important;
                gap: 8px !important;
            }
            .mega-toggle {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .navbar-brand {
                font-size: var(--font-lg);
                gap: 6px;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: var(--font-base);
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
            .mega-panel {
                width: 100%;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: linear-gradient(135deg, var(--brand-navy) 0%, #1F2544 40%, #2A1F3D 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 70px 0 60px;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 26, 46, 0.72);
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            color: #FFD6A5;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 500;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
        }
        .page-banner h1 {
            font-size: var(--font-5xl);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            line-height: 1.2;
        }
        .page-banner .banner-subtitle {
            font-size: var(--font-lg);
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
            margin-bottom: 0;
        }
        .breadcrumb-nav {
            display: flex;
            gap: 6px;
            align-items: center;
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
            margin-top: 20px;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: #FFD6A5;
        }
        .breadcrumb-nav .separator {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb-nav .current {
            color: #FFD6A5;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: var(--font-3xl);
            }
            .page-banner .banner-subtitle {
                font-size: var(--font-base);
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: var(--font-2xl);
            }
            .page-banner {
                padding: 36px 0 30px;
            }
        }

        /* ========== SECTION STYLES ========== */
        .section {
            padding: 56px 0;
        }
        .section-sm {
            padding: 40px 0;
        }
        .section-title {
            font-size: var(--font-3xl);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: var(--font-lg);
            color: var(--text-secondary);
            margin-bottom: 32px;
        }
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            margin-bottom: 6px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: var(--font-2xl);
            }
            .section-subtitle {
                font-size: var(--font-base);
            }
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 24px;
            transition: all var(--transition-base);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--border-medium);
        }
        .card-custom .card-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .card-custom h3 {
            font-size: var(--font-xl);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-custom p {
            color: var(--text-secondary);
            font-size: var(--font-sm);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== DATA TABLE ========== */
        .data-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: var(--font-sm);
        }
        .data-table thead th {
            background: var(--brand-navy);
            color: #fff;
            padding: 14px 16px;
            font-weight: 600;
            font-size: var(--font-sm);
            white-space: nowrap;
            text-align: center;
            letter-spacing: 0.3px;
        }
        .data-table tbody td {
            padding: 12px 16px;
            text-align: center;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-primary);
            font-variant-numeric: tabular-nums;
            font-family: 'SF Mono', 'Menlo', 'Consolas', 'Courier New', monospace;
            font-weight: 500;
        }
        .data-table tbody tr {
            transition: background var(--transition-fast);
        }
        .data-table tbody tr:hover {
            background: #FFFBF5;
        }
        .data-table tbody tr:last-child td {
            border-bottom: none;
        }
        .badge-hot {
            display: inline-block;
            background: #FEF2F1;
            color: var(--brand-red);
            font-size: var(--font-xs);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-family: inherit;
        }
        .badge-cool {
            display: inline-block;
            background: #EFF6FF;
            color: #2563EB;
            font-size: var(--font-xs);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-family: inherit;
        }
        .badge-warm {
            display: inline-block;
            background: #FFF7ED;
            color: #EA580C;
            font-size: var(--font-xs);
            padding: 3px 10px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-family: inherit;
        }

        /* ========== STAT COUNTER ========== */
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 20px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            height: 100%;
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-card .stat-number {
            font-size: var(--font-4xl);
            font-weight: 800;
            color: var(--brand-red);
            letter-spacing: -1px;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: var(--font-sm);
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== ACCORDION / FAQ ========== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: var(--font-base);
            color: var(--text-primary);
            padding: 16px 20px;
            background: var(--bg-white);
            box-shadow: none !important;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--brand-red);
            background: var(--brand-red-light);
            border-bottom: 1px solid var(--border-light);
        }
        .faq-accordion .accordion-button::after {
            transition: transform var(--transition-base);
        }
        .faq-accordion .accordion-body {
            padding: 16px 20px 20px;
            color: var(--text-secondary);
            font-size: var(--font-sm);
            line-height: 1.8;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-navy) 0%, #252542 50%, #1F1F3A 100%);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: var(--font-3xl);
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: var(--font-lg);
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .btn-cta {
            display: inline-block;
            background: var(--brand-gold);
            color: #1A1A2E !important;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-full);
            font-size: var(--font-lg);
            letter-spacing: 0.3px;
            transition: all var(--transition-base);
            border: none;
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 20px rgba(212, 168, 67, 0.35);
        }
        .btn-cta:hover {
            background: #E6B950;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(212, 168, 67, 0.5);
            color: #1A1A2E !important;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: var(--font-2xl);
            }
            .cta-section p {
                font-size: var(--font-base);
            }
            .btn-cta {
                padding: 12px 28px;
                font-size: var(--font-base);
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-navy);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 0;
            margin-top: 20px;
        }
        .site-footer .footer-brand {
            font-size: var(--font-2xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .site-footer .footer-desc {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .site-footer h5 {
            font-size: var(--font-base);
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }
        .site-footer ul li {
            margin-bottom: 7px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: var(--font-sm);
            transition: color var(--transition-fast);
        }
        .site-footer ul li a:hover {
            color: var(--brand-gold);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            margin-top: 36px;
            text-align: center;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 36px 0 0;
            }
            .site-footer .footer-bottom {
                margin-top: 24px;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-outline-brand {
            border: 2px solid var(--brand-red);
            color: var(--brand-red);
            background: transparent;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            font-size: var(--font-sm);
        }
        .btn-outline-brand:hover {
            background: var(--brand-red);
            color: #fff;
            box-shadow: 0 4px 14px rgba(212, 48, 43, 0.3);
        }
        .btn-brand {
            background: var(--brand-red);
            color: #fff !important;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-full);
            border: none;
            transition: all var(--transition-fast);
            font-size: var(--font-sm);
            box-shadow: 0 3px 10px rgba(212, 48, 43, 0.25);
        }
        .btn-brand:hover {
            background: var(--brand-red-dark);
            box-shadow: 0 6px 18px rgba(212, 48, 43, 0.4);
            transform: translateY(-1px);
        }

        /* ========== IMAGE WRAPPER ========== */
        .img-rounded {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            object-fit: cover;
            width: 100%;
        }
        .img-card-cover {
            border-radius: var(--radius-md);
            object-fit: cover;
            width: 100%;
            aspect-ratio: 16/10;
            box-shadow: var(--shadow-sm);
        }

        /* ========== TAG / PILL ========== */
        .tag-pill {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--bg-light);
            color: var(--text-secondary);
        }
        .tag-pill.tag-red {
            background: var(--brand-red-light);
            color: var(--brand-red);
        }
        .tag-pill.tag-gold {
            background: var(--brand-gold-light);
            color: #8B6914;
        }

        /* ========== HIGHLIGHT BOX ========== */
        .highlight-box {
            background: linear-gradient(135deg, #FFFDF7, #FFF8EC);
            border: 1px solid #F0D89D;
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            position: relative;
        }
        .highlight-box .highlight-label {
            font-size: var(--font-xs);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #8B6914;
            margin-bottom: 8px;
        }
        .highlight-box .highlight-value {
            font-size: var(--font-4xl);
            font-weight: 800;
            color: var(--brand-navy);
            letter-spacing: -1px;
        }

        /* ========== UTILITY ========== */
        .text-weak {
            color: var(--text-weak);
        }
        .text-secondary {
            color: var(--text-secondary);
        }
        .fw-700 {
            font-weight: 700;
        }
        .fw-800 {
            font-weight: 800;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .mb-48 {
            margin-bottom: 48px;
        }
        .gap-3 {
            gap: 16px;
        }
        .gap-4 {
            gap: 24px;
        }

        @media (max-width: 768px) {
            .stat-card .stat-number {
                font-size: var(--font-3xl);
            }
            .highlight-box .highlight-value {
                font-size: var(--font-3xl);
            }
            .data-table-wrap {
                border-radius: var(--radius-md);
            }
        }
        @media (max-width: 520px) {
            .card-custom {
                padding: 18px;
            }
            .stat-card {
                padding: 16px 14px;
            }
            .stat-card .stat-number {
                font-size: var(--font-2xl);
            }
            .data-table {
                font-size: var(--font-xs);
            }
            .data-table thead th,
            .data-table tbody td {
                padding: 8px 10px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-red: #c41230;
            --brand-red-dark: #a00e26;
            --brand-red-light: #e8304a;
            --brand-navy: #1a1a2e;
            --brand-navy-light: #252540;
            --brand-gold: #c8963e;
            --brand-gold-light: #d9a94e;
            --bg-page: #f3f4f6;
            --bg-white: #ffffff;
            --bg-light: #fafafb;
            --bg-dark-section: #1a1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-muted: #7a7a8e;
            --text-light: #a0a0b0;
            --text-on-dark: #e8e8f0;
            --text-on-dark-muted: #b0b0c0;
            --border-color: #e2e3e8;
            --border-light: #efeff4;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-2xl: 24px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 3.5rem;
            --spacing-2xl: 5rem;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-lg: 1.125rem;
            --font-xl: 1.25rem;
            --font-2xl: 1.5rem;
            --font-3xl: 2rem;
            --font-4xl: 2.5rem;
            --font-5xl: 3rem;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.4s ease;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

        /* ========== Header & Navigation ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-color);
        }

        .navbar {
            padding: 0.6rem 0;
            flex-wrap: wrap;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: var(--font-xl);
            color: var(--brand-navy) !important;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--brand-red), var(--brand-red-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: var(--font-base);
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 0.2rem;
        }

        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: var(--font-sm);
            color: var(--text-secondary) !important;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--brand-red) !important;
            background-color: rgba(196, 18, 48, 0.04);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-red) !important;
            background-color: rgba(196, 18, 48, 0.07);
            font-weight: 600;
        }

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

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 0.4rem 0.6rem;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(196, 18, 48, 0.15);
            outline: none;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,26,46,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .mega-trigger {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: var(--font-sm);
            padding: 0.45rem 1rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .mega-trigger:hover {
            border-color: var(--brand-red);
            color: var(--brand-red);
            background-color: rgba(196, 18, 48, 0.03);
        }

        .mega-trigger i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }

        .mega-trigger.active i {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            width: 520px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            border: 1px solid var(--border-light);
            padding: 1.5rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition-base);
            z-index: 1060;
            pointer-events: none;
        }

        .mega-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.75rem;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.9rem 1rem;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            transition: all var(--transition-fast);
            text-decoration: none;
            color: var(--text-primary);
            border: 1px solid transparent;
        }

        .mega-card:hover {
            background: #fff;
            border-color: var(--brand-red);
            box-shadow: var(--shadow-md);
            color: var(--brand-red);
        }

        .mega-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-red-light), var(--brand-red));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .mega-info {
            display: flex;
            flex-direction: column;
        }

        .mega-info strong {
            font-size: var(--font-sm);
            font-weight: 600;
            line-height: 1.3;
        }

        .mega-info small {
            font-size: var(--font-xs);
            color: var(--text-muted);
            line-height: 1.3;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(160deg, var(--brand-navy) 0%, var(--brand-navy-light) 40%, #1e2a3a 100%);
            padding: var(--spacing-2xl) 0 var(--spacing-xl);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg-page), transparent);
            z-index: 1;
        }

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

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            padding: 0.35rem 0.9rem;
            border-radius: 50px;
            font-size: var(--font-xs);
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .page-hero .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: #4cff8d;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(76, 255, 141, 0.6);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(76, 255, 141, 0);
            }
        }

        .page-hero h1 {
            font-size: var(--font-4xl);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.03em;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }

        .page-hero h1 span {
            color: var(--brand-gold-light);
        }

        .page-hero .hero-desc {
            font-size: var(--font-lg);
            color: var(--text-on-dark-muted);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }

        .page-hero .hero-stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .page-hero .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .page-hero .hero-stat .stat-num {
            font-size: var(--font-3xl);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1;
        }

        .page-hero .hero-stat .stat-label {
            font-size: var(--font-xs);
            color: var(--text-on-dark-muted);
            letter-spacing: 0.04em;
            margin-top: 0.25rem;
        }

        /* ========== Lottery Ball Styles ========== */
        .ball-red {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: radial-gradient(circle at 35% 30%, #f05060, #c41230);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 3px 8px rgba(196, 18, 48, 0.4), inset 0 -2px 3px rgba(0, 0, 0, 0.2);
            flex-shrink: 0;
        }

        .ball-blue {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: radial-gradient(circle at 35% 30%, #5b8def, #1a56db);
            color: #fff;
            border-radius: 50%;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 3px 8px rgba(26, 86, 219, 0.4), inset 0 -2px 3px rgba(0, 0, 0, 0.2);
            flex-shrink: 0;
        }

        .ball-red-sm {
            width: 32px;
            height: 32px;
            font-size: 0.85rem;
            box-shadow: 0 2px 5px rgba(196, 18, 48, 0.35), inset 0 -1px 2px rgba(0, 0, 0, 0.18);
        }

        .ball-blue-sm {
            width: 32px;
            height: 32px;
            font-size: 0.85rem;
            box-shadow: 0 2px 5px rgba(26, 86, 219, 0.35), inset 0 -1px 2px rgba(0, 0, 0, 0.18);
        }

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

        .section-sm {
            padding: var(--spacing-lg) 0;
        }

        .section-title {
            font-size: var(--font-2xl);
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 0.4rem;
        }

        .section-subtitle {
            font-size: var(--font-base);
            color: var(--text-muted);
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }

        .section-header .section-title {
            position: relative;
            display: inline-block;
        }

        .section-header .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            background: var(--brand-red);
            border-radius: 3px;
        }

        /* ========== Cards ========== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
        }

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

        .card-custom .card-body {
            padding: 1.5rem;
        }

        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8eaef;
        }

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

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

        .card-custom .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(196, 18, 48, 0.08);
            color: var(--brand-red);
            border-radius: 50px;
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 0.5rem;
        }

        .card-custom .card-title {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-custom .card-text {
            font-size: var(--font-sm);
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Lottery Result Card */
        .result-card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            padding: 2rem;
            border: 1px solid var(--border-light);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .result-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-red), var(--brand-gold), var(--brand-red));
        }

        .result-card .result-period {
            font-size: var(--font-sm);
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 0.3rem;
        }

        .result-card .result-date {
            font-size: var(--font-xs);
            color: var(--text-light);
            margin-bottom: 1.2rem;
        }

        .result-card .balls-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }

        .result-card .balls-row .plus-sign {
            font-weight: 700;
            color: var(--text-muted);
            font-size: 1.2rem;
            margin: 0 0.2rem;
        }

        /* ========== Buttons ========== */
        .btn-brand {
            background: linear-gradient(135deg, var(--brand-red), var(--brand-red-dark));
            color: #fff;
            border: none;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: var(--font-sm);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(196, 18, 48, 0.3);
            white-space: nowrap;
        }

        .btn-brand:hover {
            background: linear-gradient(135deg, var(--brand-red-dark), #8a0a1e);
            color: #fff;
            box-shadow: 0 4px 16px rgba(196, 18, 48, 0.45);
            transform: translateY(-1px);
        }

        .btn-brand:active {
            transform: translateY(0);
            box-shadow: 0 1px 4px rgba(196, 18, 48, 0.3);
        }

        .btn-brand:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(196, 18, 48, 0.2);
        }

        .btn-outline-brand {
            background: transparent;
            color: var(--brand-red);
            border: 2px solid var(--brand-red);
            padding: 0.6rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: var(--font-sm);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline-brand:hover {
            background: var(--brand-red);
            color: #fff;
            box-shadow: 0 4px 14px rgba(196, 18, 48, 0.3);
        }

        .btn-outline-brand:focus {
            outline: none;
            box-shadow: 0 0 0 4px rgba(196, 18, 48, 0.15);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--brand-gold), #b07d2e);
            color: #fff;
            border: none;
            padding: 0.65rem 1.6rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: var(--font-sm);
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(200, 150, 62, 0.35);
            white-space: nowrap;
        }

        .btn-gold:hover {
            background: linear-gradient(135deg, #d9a94e, #c8963e);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.5);
            transform: translateY(-1px);
        }

        /* ========== Info Blocks ========== */
        .info-block {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .info-block:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }

        .info-block .info-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
            flex-shrink: 0;
        }

        .info-block .info-icon.red {
            background: rgba(196, 18, 48, 0.1);
            color: var(--brand-red);
        }

        .info-block .info-icon.blue {
            background: rgba(26, 86, 219, 0.1);
            color: #1a56db;
        }

        .info-block .info-icon.gold {
            background: rgba(200, 150, 62, 0.12);
            color: var(--brand-gold);
        }

        .info-block .info-icon.green {
            background: rgba(16, 185, 129, 0.1);
            color: #10b981;
        }

        .info-block h4 {
            font-size: var(--font-base);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }

        .info-block p {
            font-size: var(--font-sm);
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== Table Styles ========== */
        .table-custom {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .table-custom thead th {
            background: var(--brand-navy);
            color: #fff;
            font-weight: 600;
            font-size: var(--font-sm);
            padding: 0.85rem 1rem;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .table-custom tbody td {
            padding: 0.75rem 1rem;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            white-space: nowrap;
        }

        .table-custom tbody tr:hover td {
            background: rgba(196, 18, 48, 0.02);
        }

        .table-custom tbody tr:last-child td {
            border-bottom: none;
        }

        /* ========== FAQ ========== */
        .faq-list .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.6rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
        }

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

        .faq-list .accordion-button {
            font-weight: 600;
            font-size: var(--font-base);
            color: var(--text-primary);
            background: #fff;
            padding: 1rem 1.3rem;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
            box-shadow: none !important;
        }

        .faq-list .accordion-button:not(.collapsed) {
            background: rgba(196, 18, 48, 0.03);
            color: var(--brand-red);
            border-bottom: 1px solid var(--border-light);
        }

        .faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(196, 18, 48, 0.1) !important;
            outline: none;
        }

        .faq-list .accordion-body {
            padding: 1.2rem 1.3rem;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.8;
            background: #fff;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--brand-navy) 0%, #1e2a3a 100%);
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

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

        .cta-section h2 {
            color: #fff;
            font-weight: 800;
            font-size: var(--font-3xl);
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: var(--text-on-dark-muted);
            font-size: var(--font-lg);
            margin-bottom: 1.5rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--brand-navy);
            color: var(--text-on-dark);
            padding: var(--spacing-xl) 0 0;
            margin-top: 0;
        }

        .site-footer .footer-brand {
            font-size: var(--font-xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }

        .site-footer .footer-desc {
            font-size: var(--font-sm);
            color: var(--text-on-dark-muted);
            line-height: 1.7;
            margin-bottom: 0.75rem;
            max-width: 300px;
        }

        .site-footer h5 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.04em;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }

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

        .site-footer ul li {
            margin-bottom: 0.5rem;
        }

        .site-footer ul li a {
            font-size: var(--font-sm);
            color: var(--text-on-dark-muted);
            transition: color var(--transition-fast);
        }

        .site-footer ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.2rem 0;
            margin-top: 2rem;
            text-align: center;
        }

        .footer-bottom p {
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: var(--font-3xl);
            }
            .page-hero .hero-stats-row {
                gap: 1.5rem;
            }
            .mega-panel {
                width: 420px;
                right: -40px;
            }
        }

        @media (max-width: 768px) {
            .navbar {
                padding: 0.5rem 0;
            }
            .navbar-nav {
                gap: 0;
                padding-top: 0.75rem;
                padding-bottom: 0.5rem;
            }
            .navbar-nav .nav-link {
                padding: 0.6rem 1rem !important;
                font-size: var(--font-base);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .mega-panel {
                position: static;
                width: 100%;
                opacity: 1;
                visibility: visible;
                transform: none;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0.5rem 0;
                pointer-events: auto;
                margin-top: 0.5rem;
                background: transparent;
            }
            .mega-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .mega-card {
                background: rgba(255, 255, 255, 0.6);
                padding: 0.6rem 0.8rem;
            }
            .page-hero {
                padding: var(--spacing-lg) 0;
                min-height: 240px;
            }
            .page-hero h1 {
                font-size: var(--font-2xl);
            }
            .page-hero .hero-stats-row {
                gap: 1rem;
            }
            .page-hero .hero-stat .stat-num {
                font-size: var(--font-2xl);
            }
            .ball-red,
            .ball-blue {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: var(--font-xl);
            }
            .result-card {
                padding: 1.2rem;
            }
            .table-custom thead th,
            .table-custom tbody td {
                padding: 0.5rem 0.6rem;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: var(--font-xl);
            }
            .page-hero .hero-desc {
                font-size: var(--font-sm);
            }
            .page-hero .hero-stats-row {
                gap: 0.8rem;
            }
            .page-hero .hero-stat .stat-num {
                font-size: var(--font-xl);
            }
            .ball-red,
            .ball-blue {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .ball-red-sm,
            .ball-blue-sm {
                width: 26px;
                height: 26px;
                font-size: 0.7rem;
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
            .result-card .balls-row {
                gap: 0.3rem;
            }
            .section-title {
                font-size: var(--font-lg);
            }
            .cta-section h2 {
                font-size: var(--font-xl);
            }
            .site-footer .row>div {
                margin-bottom: 1rem;
            }
        }

        /* ========== Utility ========== */
        .text-brand {
            color: var(--brand-red) !important;
        }
        .text-gold {
            color: var(--brand-gold) !important;
        }
        .bg-light-grey {
            background: var(--bg-light);
        }
        .fw-800 {
            font-weight: 800;
        }
        .letter-spacing-wide {
            letter-spacing: 0.04em;
        }

/* roulang page: category5 */
:root {
            --brand-primary: #c41e3a;
            --brand-primary-dark: #9b1630;
            --brand-primary-light: #e8455a;
            --brand-accent: #d4a574;
            --brand-accent-light: #f0dcc8;
            --brand-accent-dark: #b8895a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5e;
            --text-muted: #7a7a8e;
            --text-light: #9a9aae;
            --bg-body: #f8f9fb;
            --bg-white: #ffffff;
            --bg-light: #f0f2f5;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --border-color: #e8eaef;
            --border-light: #f0f2f5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --navbar-height: 72px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-body);
            overflow-x: hidden;
            padding-top: var(--navbar-height);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-normal);
        }
        a:hover {
            color: var(--brand-primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .container {
            max-width: 1200px;
            padding-left: 1rem;
            padding-right: 1rem;
            margin-left: auto;
            margin-right: auto;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1280px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--navbar-height);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            border-bottom-color: transparent;
        }
        .navbar {
            height: var(--navbar-height);
            padding: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-primary) !important;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 900;
            font-size: 1.1rem;
            letter-spacing: -0.03em;
            flex-shrink: 0;
            box-shadow: 0 3px 12px rgba(196, 30, 58, 0.3);
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary) !important;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary) !important;
            background: rgba(196, 30, 58, 0.04);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-primary) !important;
            background: rgba(196, 30, 58, 0.07);
            font-weight: 700;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--brand-primary);
            border-radius: 3px;
        }
        .navbar-toggler {
            border: none;
            padding: 0.5rem;
            box-shadow: none !important;
            outline: none !important;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--brand-primary-light);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231a1a2e' stroke-width='2.5' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn-mega-toggle {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 0.5rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-mega-toggle:hover {
            background: #e8eaef;
            color: var(--text-primary);
            border-color: #d0d3d9;
        }
        .btn-mega-toggle i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .btn-mega-toggle.open i {
            transform: rotate(180deg);
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 520px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.25rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all var(--transition-normal);
            border: 1px solid var(--border-color);
            z-index: 1060;
        }
        .mega-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.75rem;
        }
        .mega-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 0.5rem;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            text-align: center;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: #fff;
            color: var(--brand-primary);
            border-color: var(--brand-primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .mega-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-primary-light), var(--brand-primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }

        @media (max-width: 991px) {
            .navbar-collapse {
                position: absolute;
                top: var(--navbar-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: 1rem;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                max-height: 70vh;
                overflow-y: auto;
            }
            .navbar-nav {
                gap: 2px;
            }
            .navbar-nav .nav-link {
                padding: 0.75rem 1rem !important;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .header-actions {
                margin-top: 0.75rem;
                justify-content: center;
                width: 100%;
            }
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                margin-top: 0.75rem;
                opacity: 1;
                visibility: visible;
                transform: none;
                padding: 0;
                background: transparent;
                display: none;
            }
            .mega-panel.show {
                display: block;
            }
            .mega-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.5rem;
            }
        }
        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .mega-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.4rem;
            }
            .mega-card {
                padding: 0.7rem 0.3rem;
                font-size: 0.78rem;
            }
            .mega-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
        }

        .page-banner {
            position: relative;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 4rem 0;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.88) 0%, rgba(15, 30, 60, 0.75) 50%, rgba(10, 20, 40, 0.85) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 0.4rem 1.2rem;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 1.25rem;
            color: #ffe0c0;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
            line-height: 1.3;
        }
        .page-banner .banner-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 650px;
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }
        .page-banner .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .page-banner .banner-stat {
            text-align: center;
        }
        .page-banner .banner-stat .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: #ffe0c0;
            line-height: 1;
        }
        .page-banner .banner-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 2.5rem 0;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-subtitle {
                font-size: 1rem;
            }
            .page-banner .banner-stats {
                gap: 1rem;
            }
            .page-banner .banner-stat .stat-num {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-stats {
                flex-direction: column;
                gap: 0.75rem;
                align-items: flex-start;
            }
            .page-banner .banner-stat {
                text-align: left;
                display: flex;
                align-items: baseline;
                gap: 0.5rem;
            }
        }

        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--spacing-lg);
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        .section-header .section-divider {
            width: 50px;
            height: 4px;
            background: var(--brand-primary);
            border-radius: 4px;
            margin: 0.75rem auto;
        }
        .section-header p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }

        .result-display {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 2rem;
            border: 1px solid var(--border-color);
        }
        .result-header-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 1.25rem;
        }
        .result-period {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
        }
        .result-date {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .result-numbers {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            justify-content: center;
            margin: 1.5rem 0;
        }
        .result-number-ball {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: linear-gradient(135deg, #c41e3a, #e8455a);
            color: #fff;
            font-weight: 800;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(196, 30, 58, 0.35);
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }
        .result-number-ball:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(196, 30, 58, 0.45);
        }
        .result-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .result-meta span {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }
        .result-meta i {
            color: var(--brand-accent);
        }
        @media (max-width: 520px) {
            .result-display {
                padding: 1.25rem;
            }
            .result-number-ball {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .result-numbers {
                gap: 0.4rem;
            }
        }

        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #d0d4dc;
        }
        .card-custom .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-light);
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-custom .card-body-custom {
            padding: 1.25rem;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: var(--brand-accent-light);
            color: var(--brand-accent-dark);
            font-weight: 700;
            font-size: 0.78rem;
            padding: 0.25rem 0.75rem;
            border-radius: var(--radius-full);
            margin-bottom: 0.6rem;
            letter-spacing: 0.03em;
        }
        .card-custom h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-custom p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        .data-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }
        .data-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #d0d4dc;
        }
        .data-card .data-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-primary-light), var(--brand-primary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.3rem;
        }
        .data-card .data-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1;
            margin-bottom: 0.3rem;
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .rule-block {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 2rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .rule-block h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .rule-block h3 .rule-icon {
            color: var(--brand-primary);
            font-size: 1.3rem;
        }
        .rule-block ul {
            padding-left: 0;
        }
        .rule-block ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: flex;
            align-items: flex-start;
            gap: 0.5rem;
        }
        .rule-block ul li:last-child {
            border-bottom: none;
        }
        .rule-block ul li::before {
            content: '✓';
            color: var(--brand-primary);
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 1px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1rem 1.25rem;
            background: transparent;
            border: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            cursor: pointer;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--brand-primary);
        }
        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--brand-primary);
        }
        .faq-answer {
            padding: 0 1.25rem 1rem;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .cta-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            background-image: url('assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(15, 30, 60, 0.8) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-block;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            border: none;
            cursor: pointer;
            letter-spacing: 0.02em;
        }
        .btn-cta-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-dark));
            color: #fff;
            box-shadow: 0 6px 20px rgba(196, 30, 58, 0.4);
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(196, 30, 58, 0.5);
            color: #fff;
        }
        .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            margin-left: 0.75rem;
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 2.5rem 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .btn-cta-outline {
                margin-left: 0;
                margin-top: 0.75rem;
            }
        }

        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 0.75rem;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 2rem;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 2rem 0 1rem;
            }
        }

        .bg-soft {
            background: var(--bg-light);
        }
        .text-accent {
            color: var(--brand-accent-dark);
        }
        .fw-800 {
            font-weight: 800;
        }
        .gap-row {
            row-gap: 1.5rem;
        }

/* roulang page: category2 */
:root {
            --brand-deep: #0F1F38;
            --brand-primary: #1B3A5C;
            --brand-accent: #C83A2F;
            --brand-gold: #D4A853;
            --brand-secondary: #1E6B8A;
            --bg-page: #F4F5F7;
            --bg-white: #FFFFFF;
            --bg-light: #F8F9FA;
            --bg-soft: #EDF0F4;
            --text-primary: #1A1D23;
            --text-body: #2C3E50;
            --text-muted: #6B7280;
            --text-light: #9CA3AF;
            --border-light: #E5E7EB;
            --border-soft: #E8ECF0;
            --shadow-sm: 0 1px 3px rgba(15, 31, 56, 0.06);
            --shadow-md: 0 4px 16px rgba(15, 31, 56, 0.08);
            --shadow-lg: 0 8px 32px rgba(15, 31, 56, 0.12);
            --shadow-xl: 0 16px 48px rgba(15, 31, 56, 0.16);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50%;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 3.5rem;
            --spacing-2xl: 5rem;
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-page);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: var(--font-body);
        }
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--brand-gold);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1260px;
            }
        }

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .navbar {
            padding: 0.6rem 0;
            min-height: 62px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--brand-primary) !important;
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }
        .navbar-brand:hover {
            color: var(--brand-secondary) !important;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-primary) 0%, #1E5070 100%);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: -0.03em;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 0.25rem;
        }
        .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            padding: 0.55rem 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background-color: var(--bg-soft);
        }
        .navbar-nav .nav-link.active {
            color: var(--brand-accent);
            font-weight: 600;
            background-color: rgba(200, 58, 47, 0.06);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--brand-accent);
        }

        .navbar-toggler {
            border: 2px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 0.4rem 0.65rem;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.15);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(27, 58, 92, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Panel */
        .mega-trigger {
            background: var(--bg-soft);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 0.5rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .mega-trigger:hover {
            background: var(--bg-white);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
        }
        .mega-trigger i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .mega-trigger.active i {
            transform: rotate(180deg);
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            width: 520px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all var(--transition-base);
            z-index: 1060;
            border: 1px solid var(--border-soft);
        }
        .mega-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.75rem;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.85rem 1rem;
            border-radius: var(--radius-md);
            background: var(--bg-light);
            transition: all var(--transition-fast);
            color: var(--text-body);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            border: 1px solid transparent;
        }
        .mega-card:hover {
            background: var(--bg-white);
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mega-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--brand-primary) 0%, #1E5070 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        @media (max-width: 991.98px) {
            .mega-panel {
                position: static;
                width: 100%;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0.75rem 0;
                opacity: 1;
                visibility: visible;
                transform: none;
                background: transparent;
                margin-top: 0.5rem;
            }
            .mega-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
            .mega-card {
                padding: 0.65rem 0.75rem;
                font-size: 0.82rem;
            }
            .mega-icon {
                width: 32px;
                height: 32px;
                font-size: 0.75rem;
            }
            .mega-trigger {
                display: none;
            }
            .navbar-nav {
                gap: 0;
            }
            .navbar-nav .nav-link {
                padding: 0.6rem 0.75rem;
            }
        }
        @media (max-width: 767.98px) {
            .navbar-brand {
                font-size: 1.15rem;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .mega-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== PAGE BANNER ========== */
        .page-banner {
            position: relative;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 56, 0.88) 0%, rgba(27, 58, 92, 0.78) 40%, rgba(30, 107, 138, 0.6) 100%);
            z-index: 1;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg-page) 0%, transparent 100%);
            z-index: 2;
        }
        .page-banner-content {
            position: relative;
            z-index: 3;
            color: #fff;
            padding: 3rem 0 3.5rem;
        }
        .page-banner-content .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .page-banner-content h1 {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 2.6rem;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }
        .page-banner-content .banner-desc {
            font-size: 1.15rem;
            opacity: 0.9;
            max-width: 600px;
            line-height: 1.6;
        }
        @media (max-width: 767.98px) {
            .page-banner {
                min-height: 250px;
            }
            .page-banner-content h1 {
                font-size: 1.8rem;
            }
            .page-banner-content .banner-desc {
                font-size: 0.95rem;
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-sm {
            padding: var(--spacing-lg) 0;
        }
        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.75rem;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .section-header {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-header .section-title {
            position: relative;
            display: inline-block;
        }
        .section-header .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 3px;
            border-radius: 2px;
            background: var(--brand-accent);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: var(--border-light);
        }
        .card-custom .card-body {
            padding: 1.5rem;
        }
        .card-custom .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 0.75rem;
            flex-shrink: 0;
        }
        .card-custom .card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ========== LOTTERY BALLS ========== */
        .lottery-ball {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            margin: 0 3px;
            flex-shrink: 0;
        }
        .lottery-ball.red {
            background: radial-gradient(circle at 35% 30%, #F8716B, #C83A2F 70%, #9B1D18 100%);
            box-shadow: 0 3px 10px rgba(200, 58, 47, 0.35);
        }
        .lottery-ball.blue {
            background: radial-gradient(circle at 35% 30%, #60A5FA, #2563EB 70%, #1A3F9E 100%);
            box-shadow: 0 3px 10px rgba(37, 99, 235, 0.35);
        }
        .lottery-ball.sm {
            width: 34px;
            height: 34px;
            font-size: 0.85rem;
        }
        @media (max-width: 520px) {
            .lottery-ball {
                width: 38px;
                height: 38px;
                font-size: 1rem;
                margin: 0 2px;
            }
            .lottery-ball.sm {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }
        }

        /* ========== RESULT HIGHLIGHT ========== */
        .result-highlight {
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-lg);
            padding: 2rem 1.5rem;
            text-align: center;
        }
        .result-highlight .result-period {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        .result-highlight .result-period strong {
            color: var(--brand-accent);
            font-weight: 700;
        }
        .result-highlight .ball-row {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 6px;
            margin: 1rem 0;
        }
        .result-highlight .ball-separator {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-muted);
            margin: 0 6px;
        }
        .result-highlight .result-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .result-highlight .result-info span {
            font-weight: 600;
            color: var(--text-body);
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            padding: 1.5rem 1.2rem;
            text-align: center;
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .stat-card .stat-number {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-primary);
            letter-spacing: -0.02em;
        }
        .stat-card .stat-number.accent {
            color: var(--brand-accent);
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }
        @media (max-width: 767.98px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1rem;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
        }

        /* ========== HISTORY TABLE ========== */
        .history-table-wrap {
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }
        .history-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            font-size: 0.9rem;
        }
        .history-table thead th {
            background: var(--bg-soft);
            color: var(--text-body);
            font-weight: 600;
            padding: 0.85rem 0.75rem;
            border-bottom: 2px solid var(--border-light);
            white-space: nowrap;
            font-size: 0.85rem;
            text-align: center;
        }
        .history-table tbody td {
            padding: 0.75rem;
            text-align: center;
            border-bottom: 1px solid var(--border-soft);
            vertical-align: middle;
        }
        .history-table tbody tr {
            transition: background var(--transition-fast);
        }
        .history-table tbody tr:hover {
            background: var(--bg-light);
        }
        .history-table .period-cell {
            font-weight: 600;
            color: var(--brand-primary);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--brand-primary) 0%, #0F2840 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-section h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.6rem;
            margin-bottom: 0.5rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            opacity: 0.85;
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
            font-size: 1rem;
        }
        .cta-section .btn-cta {
            position: relative;
            z-index: 1;
            background: var(--brand-accent);
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(200, 58, 47, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: #E04A3A;
            box-shadow: 0 6px 24px rgba(200, 58, 47, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ========== FAQ ========== */
        .faq-list .accordion-item {
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.6rem;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: var(--bg-white);
        }
        .faq-list .accordion-button {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: var(--bg-white);
            padding: 1rem 1.2rem;
            box-shadow: none;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .faq-list .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: var(--bg-light);
            box-shadow: none;
        }
        .faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1);
        }
        .faq-list .accordion-body {
            padding: 1rem 1.2rem 1.3rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        /* ========== GUIDE CARD ========== */
        .guide-card {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            padding: 1.5rem;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-md);
        }
        .guide-card .guide-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
        }
        .guide-card .guide-content h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }
        .guide-card .guide-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        @media (max-width: 520px) {
            .guide-card {
                flex-direction: column;
                text-align: center;
                gap: 0.75rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-brand {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            white-space: nowrap;
        }
        .btn-brand:hover {
            background: #0F2840;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-outline-brand {
            background: transparent;
            color: var(--brand-primary);
            border: 2px solid var(--brand-primary);
            padding: 0.55rem 1.5rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-outline-brand:hover {
            background: var(--brand-primary);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .site-footer .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.6;
            font-size: 0.85rem;
            max-width: 300px;
        }
        .site-footer h5 {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .site-footer ul li a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.2rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* ========== UTILITIES ========== */
        .text-accent {
            color: var(--brand-accent);
        }
        .text-gold {
            color: var(--brand-gold);
        }
        .bg-soft {
            background: var(--bg-soft);
        }
        .rounded-xl {
            border-radius: var(--radius-xl);
        }

        /* ========== RESPONSIVE FINE-TUNING ========== */
        @media (max-width: 1024px) {
            .section {
                padding: var(--spacing-lg) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .page-banner-content h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 767.98px) {
            .section {
                padding: 2rem 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .page-banner {
                min-height: 220px;
            }
            .page-banner-content h1 {
                font-size: 1.6rem;
            }
            .result-highlight .result-info {
                gap: 1rem;
                font-size: 0.8rem;
            }
            .cta-section {
                padding: 2rem 1.2rem;
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            .page-banner {
                min-height: 200px;
            }
            .page-banner-content h1 {
                font-size: 1.35rem;
            }
            .page-banner-content .banner-desc {
                font-size: 0.85rem;
            }
            .lottery-ball {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }
            .result-highlight {
                padding: 1.2rem 0.75rem;
            }
            .result-highlight .ball-separator {
                font-size: 1.1rem;
                margin: 0 2px;
            }
        }