/* roulang page: index */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 1400px) {
            .container {
                max-width: 1280px;
            }
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .navbar {
            padding: 0;
            min-height: 62px;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }
        .navbar-brand:hover {
            opacity: 0.85;
        }
        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }
        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }
        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .mega-menu-dropdown {
            position: relative;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }
        .mega-menu-dropdown:hover .mega-panel,
        .mega-menu-dropdown:focus-within .mega-panel {
            display: block;
        }
        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }
        .mega-panel .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.75rem;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
            text-decoration: none;
            color: var(--color-heading);
        }
        .mega-panel .mega-card:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }
        .mega-panel .mega-card-img {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg);
        }
        .mega-panel .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            line-height: 1.3;
            color: var(--color-heading);
        }
        .mega-panel .mega-card-sub {
            font-size: 0.78rem;
            color: var(--color-muted);
            margin-top: 2px;
        }
        .mega-panel .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mega-panel .mega-news-list li {
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--color-border-light);
            font-size: 0.85rem;
        }
        .mega-panel .mega-news-list li:last-child {
            border-bottom: none;
        }
        .mega-panel .mega-news-list a {
            color: var(--color-heading);
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .mega-panel .mega-news-list a:hover {
            color: var(--color-primary);
        }
        .mega-panel .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
            display: block;
            margin-top: 1px;
        }
        .mega-panel .mega-section-label {
            font-weight: 700;
            font-size: 0.8rem;
            text-transform: uppercase;
            color: var(--color-muted);
            letter-spacing: 0.04em;
            margin-bottom: 0.5rem;
        }

        @media (max-width: 991px) {
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                box-shadow: none;
                border-radius: 0;
                border: none;
                padding: 0.75rem 1rem;
                background: rgba(255, 255, 255, 0.04);
                display: none;
            }
            .mega-menu-dropdown:hover .mega-panel,
            .mega-menu-dropdown:focus-within .mega-panel {
                display: block;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .navbar-dark .navbar-nav .nav-link {
                padding: 0.5rem 1rem;
            }
            .navbar-dark .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-collapse {
                background: var(--color-secondary-dark);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 0.5rem 0;
            }
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-dark {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
        }
        .section-dark .section-title {
            color: #FFFFFF;
        }
        .section-light {
            background: var(--color-surface);
        }
        .section-accent-bg {
            background: var(--color-primary-light);
        }
        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-tight {
                padding: 32px 0;
            }
        }

        /* ========== SECTION TITLES ========== */
        .section-label {
            display: inline-block;
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            margin-bottom: 0.5rem;
            background: var(--color-primary-light);
            padding: 0.3rem 1rem;
            border-radius: 20px;
        }
        .section-title {
            font-weight: 700;
            font-size: 2rem;
            color: var(--color-heading);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-muted);
            max-width: 700px;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn {
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            border: 2px solid transparent;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(255, 87, 34, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            background: #D84315 !important;
            border-color: #D84315 !important;
            transform: translateY(0);
        }
        .btn-outline-primary {
            background: transparent;
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(255, 87, 34, 0.3);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.6);
            color: #FFFFFF;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }
        .btn-lg {
            padding: 0.75rem 2.2rem;
            font-size: 1.05rem;
            border-radius: var(--radius-md);
        }
        .btn-sm {
            padding: 0.4rem 1.2rem;
            font-size: 0.85rem;
        }
        .btn-accent {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #FFFFFF;
        }
        .btn-accent:hover {
            background: #15803D;
            border-color: #15803D;
            color: #FFFFFF;
            box-shadow: 0 4px 14px rgba(22, 163, 74, 0.35);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-fast);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: #CBD5E1;
        }
        .card-custom .card-img-top {
            height: 200px;
            object-fit: cover;
            background: var(--color-bg);
        }
        .card-custom .card-body {
            padding: 1.25rem;
        }
        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
        }
        .card-custom .card-text {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .card-custom .card-badge {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .badge-hot {
            background: #FEF2F2;
            color: #DC2626;
        }
        .badge-new {
            background: #EFF6FF;
            color: #2563EB;
        }
        .badge-green {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }
        .badge-orange {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-color: var(--color-secondary-dark);
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 41, 59, 0.7) 50%, rgba(15, 23, 42, 0.85) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .flash-bar {
            background: linear-gradient(90deg, #FF5722 0%, #FF7A45 50%, #FF5722 100%);
            color: #FFFFFF;
            padding: 0.65rem 1.5rem;
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            animation: flashPulse 2s ease-in-out infinite;
        }
        @keyframes flashPulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(255, 87, 34, 0);
            }
        }
        .flash-bar .countdown {
            background: rgba(0, 0, 0, 0.3);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.85rem;
            letter-spacing: 0.03em;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }
        .hero-title .highlight {
            color: var(--color-primary);
            position: relative;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-product-cards {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        .hero-product-card {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 1rem 1.25rem;
            color: #FFFFFF;
            flex: 1;
            min-width: 150px;
            max-width: 220px;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .hero-product-card:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-3px);
        }
        .hero-product-card .hp-icon {
            font-size: 1.8rem;
            margin-bottom: 0.4rem;
            display: block;
        }
        .hero-product-card .hp-title {
            font-weight: 700;
            font-size: 0.95rem;
        }
        .hero-product-card .hp-price {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.2rem;
        }
        .hero-product-card .hp-badge {
            display: inline-block;
            background: #DC2626;
            color: #fff;
            font-size: 0.7rem;
            padding: 0.15rem 0.5rem;
            border-radius: 10px;
            margin-left: 0.3rem;
            font-weight: 700;
            animation: blinkBadge 1s ease-in-out infinite;
        }
        @keyframes blinkBadge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 500px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-product-cards {
                flex-direction: column;
            }
            .hero-product-card {
                max-width: 100%;
            }
            .flash-bar {
                font-size: 0.78rem;
                padding: 0.5rem 1rem;
                gap: 0.5rem;
            }
        }

        /* ========== FEATURE GRID ========== */
        .feature-grid-asym {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            grid-template-rows: auto auto;
            gap: 1.5rem;
        }
        .feature-grid-asym .feature-card-large {
            grid-row: span 2;
        }
        .feature-card {
            background: #FFFFFF;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            padding: 1.5rem;
            transition: all var(--transition-fast);
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #CBD5E1;
        }
        .feature-card .fc-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #FFFFFF;
        }
        .fc-icon-orange {
            background: var(--color-primary);
        }
        .fc-icon-green {
            background: var(--color-accent);
        }
        .fc-icon-dark {
            background: var(--color-secondary);
        }
        .feature-card .fc-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--color-heading);
            margin-bottom: 0.3rem;
        }
        .feature-card .fc-desc {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .feature-grid-asym {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .feature-grid-asym .feature-card-large {
                grid-row: span 1;
            }
        }

        /* ========== SCENE SECTION ========== */
        .scene-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: center;
        }
        .scene-block.reverse {
            direction: rtl;
        }
        .scene-block.reverse .scene-text {
            direction: ltr;
        }
        .scene-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .scene-image img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }
        .scene-image .scene-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            background: var(--color-primary);
            color: #fff;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.8rem;
            z-index: 2;
        }
        .scene-text h3 {
            font-weight: 700;
            font-size: 1.6rem;
            color: var(--color-heading);
            margin-bottom: 0.75rem;
        }
        .scene-text p {
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        @media (max-width: 768px) {
            .scene-block {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .scene-block.reverse {
                direction: ltr;
            }
            .scene-image img {
                height: 220px;
            }
            .scene-text h3 {
                font-size: 1.3rem;
            }
        }

        /* ========== SUCCESS CASE ========== */
        .case-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 1.5rem;
            transition: all var(--transition-fast);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .case-card .case-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
            background: var(--color-bg);
            margin-bottom: 0.75rem;
            border: 3px solid var(--color-primary-light);
        }
        .case-card .case-quote {
            font-style: italic;
            color: var(--color-text);
            font-size: 0.9rem;
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 0.75rem;
        }
        .case-card .case-name {
            font-weight: 700;
            color: var(--color-heading);
            font-size: 0.95rem;
        }
        .case-card .case-role {
            font-size: 0.8rem;
            color: var(--color-muted);
        }
        .case-card .case-stat {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 0.2rem;
        }

        /* ========== PRICE TABLE ========== */
        .price-card {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 2px solid var(--color-border);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition-fast);
            height: 100%;
            position: relative;
        }
        .price-card.featured {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.08);
            transform: scale(1.03);
            z-index: 2;
        }
        .price-card.featured .price-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            white-space: nowrap;
        }
        .price-card:hover {
            box-shadow: var(--shadow-lg);
        }
        .price-card .price-amount {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-heading);
            margin: 0.75rem 0;
        }
        .price-card .price-amount span {
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-muted);
        }
        .price-card .price-features {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
            text-align: left;
        }
        .price-card .price-features li {
            padding: 0.4rem 0;
            font-size: 0.9rem;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border-light);
        }
        .price-card .price-features li::before {
            content: '✓ ';
            color: var(--color-accent);
            font-weight: 700;
        }
        @media (max-width: 768px) {
            .price-card.featured {
                transform: none;
            }
        }

        /* ========== NEWS ========== */
        .news-grid-mixed {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        .news-card-large {
            grid-column: span 2;
            display: flex;
            gap: 1.25rem;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-fast);
            height: 100%;
        }
        .news-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .news-card-large img {
            width: 280px;
            height: 100%;
            object-fit: cover;
            flex-shrink: 0;
            min-height: 180px;
            background: var(--color-bg);
        }
        .news-card-large .news-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-card-large .news-date {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 0.4rem;
        }
        .news-card-large .news-title {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
        }
        .news-card-large .news-excerpt {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
        }
        .news-list-side {
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 1.25rem;
            height: 100%;
        }
        .news-list-side .news-item {
            padding: 0.6rem 0;
            border-bottom: 1px solid var(--color-border-light);
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            gap: 0.5rem;
        }
        .news-list-side .news-item:last-child {
            border-bottom: none;
        }
        .news-list-side .news-item a {
            font-weight: 600;
            color: var(--color-heading);
            font-size: 0.9rem;
            flex: 1;
        }
        .news-list-side .news-item a:hover {
            color: var(--color-primary);
        }
        .news-list-side .news-item .ndate {
            font-size: 0.75rem;
            color: var(--color-muted);
            white-space: nowrap;
        }
        @media (max-width: 768px) {
            .news-grid-mixed {
                grid-template-columns: 1fr;
            }
            .news-card-large {
                grid-column: span 1;
                flex-direction: column;
            }
            .news-card-large img {
                width: 100%;
                height: 180px;
            }
        }

        /* ========== BRAND INTRO ========== */
        .brand-intro-block {
            background: linear-gradient(135deg, #F8FAFC 0%, #FFF3EF 100%);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 2rem;
            position: relative;
        }
        .brand-intro-block .bi-icon {
            position: absolute;
            top: -20px;
            left: 2rem;
            width: 44px;
            height: 44px;
            background: var(--color-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            box-shadow: var(--shadow-md);
        }
        .brand-intro-block p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text);
            margin: 0;
            padding-top: 0.5rem;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #FFFFFF;
        }
        .accordion-custom .accordion-button {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-heading);
            background: #FFFFFF;
            box-shadow: none;
            padding: 1rem 1.25rem;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: #FFF8F5;
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.15);
            border-color: var(--color-primary);
        }
        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            color: var(--color-text);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #E64A19 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            color: #FFFFFF;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 160px;
            height: 160px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            font-weight: 800;
            font-size: 2rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }
        .cta-section .btn {
            position: relative;
            z-index: 1;
        }

        /* ========== MILESTONE ========== */
        .milestone-timeline {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .milestone-item {
            text-align: center;
            flex: 1;
            min-width: 140px;
            max-width: 200px;
            padding: 1.25rem;
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }
        .milestone-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .milestone-item .ms-year {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--color-primary);
        }
        .milestone-item .ms-desc {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 0.3rem;
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: center;
            text-align: center;
        }
        .stat-item {
            flex: 1;
            min-width: 120px;
            max-width: 200px;
        }
        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.3rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
            padding: 3rem 0 1.5rem;
        }
        .site-footer a {
            color: #CBD5E1;
            transition: color var(--transition-fast);
        }
        .site-footer a:hover {
            color: #FFFFFF;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.2rem;
            color: #FFFFFF;
            margin-bottom: 0.75rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }
        .site-footer .footer-links a {
            font-size: 0.9rem;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.25rem;
            font-size: 0.85rem;
            color: #94A3B8;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        @media (max-width: 768px) {
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-links {
                gap: 0.75rem;
                flex-direction: column;
            }
        }

        /* ========== FLOATING CTA ========== */
        .floating-cta {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1000;
            background: var(--color-primary);
            color: #fff;
            padding: 0.7rem 1.4rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            animation: bounceIn 0.6s ease-out;
        }
        .floating-cta:hover {
            background: var(--color-primary-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-xl);
        }
        @keyframes bounceIn {
            0% {
                transform: scale(0.5);
                opacity: 0;
            }
            70% {
                transform: scale(1.08);
            }
            100% {
                transform: scale(1);
                opacity: 1;
            }
        }
        @media (max-width: 768px) {
            .floating-cta {
                bottom: 12px;
                right: 12px;
                padding: 0.55rem 1.1rem;
                font-size: 0.82rem;
            }
        }

        /* ========== UTILITY ========== */
        .text-primary {
            color: var(--color-primary) !important;
        }
        .text-accent {
            color: var(--color-accent) !important;
        }
        .bg-primary {
            background-color: var(--color-primary) !important;
        }
        .fw-800 {
            font-weight: 800;
        }
        .gap-3 {
            gap: 1rem;
        }
        .rounded-lg {
            border-radius: var(--radius-lg);
        }
        .overflow-hidden {
            overflow: hidden;
        }

/* roulang page: category2 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

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

        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: 2rem;
            letter-spacing: -0.005em;
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.25rem;
        }

        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-dark {
            background-color: var(--color-secondary-dark);
            color: #CBD5E1;
        }

        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: #FFFFFF;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.5rem;
            padding: 0.25rem 0.75rem;
            background: var(--color-primary-light);
            border-radius: 20px;
        }

        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            border: none;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }

        .btn-outline-white:hover {
            background: #fff;
            color: var(--color-secondary);
            border-color: #fff;
        }

        .card-custom {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }

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

        .card-custom .card-img-top {
            height: 220px;
            object-fit: cover;
            width: 100%;
        }

        .badge-accent {
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.3rem 0.7rem;
            border-radius: 20px;
        }

        .badge-primary {
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.3rem 0.7rem;
            border-radius: 20px;
        }

        .accent-border-left {
            border-left: 4px solid var(--color-accent);
            padding-left: 1rem;
        }

        .primary-border-left {
            border-left: 4px solid var(--color-primary);
            padding-left: 1rem;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

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

        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }

        .navbar-brand:hover {
            opacity: 0.85;
        }

        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }

        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }

        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .nav-item-mega {
            position: relative;
        }

        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }

        .nav-item-mega:hover .mega-panel {
            display: block;
        }

        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }

        .mega-section-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
            display: block;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            color: var(--color-text);
            text-decoration: none;
        }

        .mega-card:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-news-item {
            display: block;
            padding: 0.5rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            color: var(--color-text);
            text-decoration: none;
            border-bottom: 1px solid var(--color-border-light);
        }

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

        .mega-news-item:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }

        .mega-news-item .mega-news-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-heading);
            margin-bottom: 0.2rem;
        }

        .mega-news-item .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: 0.75rem 0;
        }

        .breadcrumb-custom {
            margin: 0;
            padding: 0;
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.25rem;
            font-size: 0.9rem;
        }

        .breadcrumb-custom li {
            display: inline-flex;
            align-items: center;
            color: var(--color-muted);
        }

        .breadcrumb-custom li+li::before {
            content: '/';
            margin: 0 0.5rem;
            color: #CBD5E1;
        }

        .breadcrumb-custom a {
            color: var(--color-muted);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--color-primary);
        }

        .breadcrumb-custom .active {
            color: var(--color-heading);
            font-weight: 600;
        }

        /* ========== HERO ========== */
        .hero-basketball {
            position: relative;
            min-height: 55vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            background-position: center 40%;
            overflow: hidden;
        }

        .hero-basketball::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 41, 59, 0.7) 40%, rgba(15, 23, 42, 0.78) 100%);
            z-index: 1;
        }

        .hero-basketball .hero-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
        }

        .hero-basketball h1 {
            color: #FFFFFF;
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .hero-basketball .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.2rem;
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.6;
        }

        .hero-basketball .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }

        .hero-basketball .hero-stat {
            text-align: center;
            color: #fff;
        }

        .hero-basketball .hero-stat .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }

        .hero-basketball .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.3rem;
        }

        .hero-basketball .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        /* ========== FEATURE CARDS ========== */
        .feature-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .feature-icon-orange {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .feature-icon-green {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        .feature-icon-dark {
            background: #1E293B;
            color: #fff;
        }

        /* ========== SCENE CARDS ========== */
        .scene-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            cursor: pointer;
            transition: all var(--transition-normal);
        }

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

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

        .scene-card .scene-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.25) 50%, rgba(0, 0, 0, 0.1) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1.5rem;
        }

        .scene-card .scene-title {
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 0.3rem;
        }

        .scene-card .scene-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            margin: 0;
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            background: var(--color-primary);
            padding: 2.5rem 0;
        }

        .stats-bar .stat-item {
            text-align: center;
            color: #fff;
        }

        .stats-bar .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 0.4rem;
        }

        .stats-bar .stat-label {
            font-size: 0.95rem;
            opacity: 0.9;
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--color-surface);
        }

        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-heading);
            background: var(--color-surface);
            box-shadow: none;
            padding: 1rem 1.25rem;
            transition: all var(--transition-fast);
            border-radius: var(--radius-md);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }

        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            color: var(--color-text);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
            padding: 3.5rem 0;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 1.5rem;
            font-size: 1.05rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 3rem 0 1.5rem;
        }

        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 0.75rem;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 0.4rem;
        }

        .site-footer .footer-links a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: #64748B;
        }

        .site-footer .footer-bottom a {
            color: #94A3B8;
        }

        .site-footer .footer-bottom a:hover {
            color: #FFFFFF;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .hero-basketball {
                min-height: 45vh;
            }
            .hero-basketball h1 {
                font-size: 2.2rem;
            }
            .hero-basketball .hero-stat .stat-number {
                font-size: 1.8rem;
            }
            .scene-card {
                height: 220px;
            }
            .mega-panel {
                width: 480px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-gap: var(--section-gap-mobile);
            }
            h1 {
                font-size: 1.75rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .hero-basketball {
                min-height: 50vh;
            }
            .hero-basketball h1 {
                font-size: 1.8rem;
            }
            .hero-basketball .hero-subtitle {
                font-size: 1rem;
            }
            .hero-basketball .hero-meta {
                gap: 1rem;
            }
            .hero-basketball .hero-stat .stat-number {
                font-size: 1.5rem;
            }
            .hero-basketball .hero-cta-group {
                flex-direction: column;
            }
            .hero-basketball .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }
            .scene-card {
                height: 200px;
            }
            .mega-panel {
                width: 100%;
                left: 0;
                transform: none;
                position: static;
                box-shadow: none;
                border-radius: 0;
                border: none;
                padding: 1rem;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .nav-item-mega:hover .mega-panel {
                display: block;
                position: static;
            }
            .stats-bar .stat-number {
                font-size: 2rem;
            }
            .card-custom .card-img-top {
                height: 180px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-basketball {
                min-height: 55vh;
            }
            .hero-basketball h1 {
                font-size: 1.5rem;
            }
            .hero-basketball .hero-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .scene-card {
                height: 180px;
            }
            .stats-bar {
                padding: 1.5rem 0;
            }
            .stats-bar .stat-number {
                font-size: 1.6rem;
            }
            .stats-bar .stat-label {
                font-size: 0.8rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

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

        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }

        .navbar-brand:hover {
            opacity: 0.85;
        }

        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }

        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }

        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .nav-item-mega {
            position: relative;
        }

        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }

        .nav-item-mega:hover .mega-panel,
        .mega-panel:hover {
            display: block;
        }

        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }

        .mega-section-label {
            display: block;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 0.75rem;
            grid-column: 1 / -1;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            color: var(--color-text);
            text-decoration: none;
        }

        .mega-card:hover {
            background: var(--color-border-light);
            color: var(--color-heading);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-heading);
            line-height: 1.3;
        }

        .mega-card-sub {
            font-size: 0.78rem;
            color: var(--color-muted);
        }

        .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mega-news-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }

        .mega-news-list li:last-child {
            border-bottom: none;
        }

        .mega-news-list a {
            font-size: 0.85rem;
            color: var(--color-text);
            transition: color var(--transition-fast);
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            gap: 0.5rem;
        }

        .mega-news-list a:hover {
            color: var(--color-primary);
        }

        .mega-news-list .news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 500;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 500;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-accent:hover {
            background: #15803D;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }

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

        .section-bg-white {
            background: var(--color-surface);
        }

        .section-bg-dark {
            background: var(--color-secondary-dark);
            color: #E2E8F0;
        }

        .section-bg-primary-light {
            background: var(--color-primary-light);
        }

        .section-bg-accent-light {
            background: var(--color-accent-light);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.75rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-top: 10px;
        }

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

        .section-title.light {
            color: #FFFFFF;
        }

        .section-title.light::after {
            background: var(--color-primary);
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--color-muted);
            margin-bottom: 2rem;
            max-width: 700px;
        }

        .section-subtitle.light {
            color: #CBD5E1;
        }

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

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }

        .card-custom .card-img-wrap {
            overflow: hidden;
            position: relative;
        }

        .card-custom .card-img-wrap img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform var(--transition-normal);
        }

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

        .card-custom .card-body-custom {
            padding: 1.25rem;
        }

        .card-custom .card-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }

        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-custom .card-text {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.6;
        }

        .card-custom .card-meta {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-top: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        /* Stats Card */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            text-align: center;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
        }

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

        .stat-card .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }

        .stat-card .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.4rem;
        }

        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 0.5rem;
        }

        /* ========== HERO CATEGORY ========== */
        .hero-category {
            position: relative;
            min-height: 42vh;
            display: flex;
            align-items: center;
            background: var(--color-secondary-dark);
            overflow: hidden;
        }

        .hero-category .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
        }

        .hero-category .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(30, 41, 59, 0.6) 100%);
        }

        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            padding: 3rem 0;
        }

        .hero-category .breadcrumb-custom {
            background: transparent;
            padding: 0;
            margin-bottom: 1rem;
            font-size: 0.9rem;
        }

        .hero-category .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.75);
        }

        .hero-category .breadcrumb-custom a:hover {
            color: #fff;
        }

        .hero-category .breadcrumb-custom .active {
            color: var(--color-primary);
        }

        .hero-category .breadcrumb-custom .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.5);
        }

        .hero-category h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }

        .hero-category .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.6;
        }

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

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

        .feature-list-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .feature-list-item .feature-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.25rem;
        }

        .feature-list-item .feature-info p {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ========== SCENARIO BLOCK ========== */
        .scenario-block {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            cursor: pointer;
            transition: all var(--transition-normal);
        }

        .scenario-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-normal);
        }

        .scenario-block:hover img {
            transform: scale(1.08);
        }

        .scenario-block .scenario-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 1.5rem;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
            color: #fff;
        }

        .scenario-block .scenario-caption h4 {
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0;
            color: #fff;
        }

        .scenario-block .scenario-caption p {
            font-size: 0.85rem;
            margin: 0.25rem 0 0;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ========== PROCESS STEPS ========== */
        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-heading);
            margin-bottom: 0.4rem;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        .process-connector {
            position: absolute;
            top: 28px;
            left: 60%;
            width: 80%;
            height: 2px;
            background: var(--color-border);
            z-index: 1;
        }

        .process-step:last-child .process-connector {
            display: none;
        }

        /* ========== FAQ ACCORDION ========== */
        .accordion-custom .accordion-button {
            background: transparent;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-heading);
            border: none;
            box-shadow: none;
            padding: 1rem 1.25rem;
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--color-primary-light);
            color: var(--color-primary);
            border-left-color: var(--color-primary);
            box-shadow: none;
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }

        .accordion-custom .accordion-button::after {
            background-size: 1rem;
            transition: transform var(--transition-fast);
        }

        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem 1.25rem;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
            border-left: 3px solid var(--color-border-light);
            margin-left: 0;
        }

        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.6rem;
            overflow: hidden;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, #E64A19 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-banner h3 {
            font-size: 1.8rem;
            font-weight: 700;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            font-size: 1rem;
            opacity: 0.9;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin: 0.75rem auto 1.5rem;
        }

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

        /* ========== BRAND INTRO BLOCK ========== */
        .brand-intro-block {
            background: var(--color-surface);
            border-left: 4px solid var(--color-primary);
            padding: 1.5rem 2rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow-sm);
            margin: 2rem 0;
        }

        .brand-intro-block p {
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.8;
            margin: 0;
        }

        .brand-intro-block .intro-icon {
            font-size: 1.5rem;
            color: var(--color-primary);
            margin-right: 0.5rem;
            vertical-align: -3px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
            padding: 3rem 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }

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

        .footer-links li {
            margin-bottom: 0.4rem;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding: 1.25rem 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: #94A3B8;
        }

        .footer-bottom a {
            color: #CBD5E1;
            font-size: 0.85rem;
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-category h1 {
                font-size: 2.2rem;
            }
            .hero-category {
                min-height: 35vh;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .mega-panel {
                width: 480px;
                left: auto;
                right: 0;
                transform: none;
            }
            .process-connector {
                width: 70%;
                left: 65%;
            }
        }

        @media (max-width: 768px) {
            .hero-category {
                min-height: 30vh;
            }
            .hero-category h1 {
                font-size: 1.7rem;
            }
            .hero-category .hero-subtitle {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section {
                padding: 36px 0;
            }
            .card-custom .card-img-wrap img {
                height: 160px;
            }
            .scenario-block {
                height: 200px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .mega-panel {
                width: 100%;
                left: 0;
                transform: none;
                position: static;
                box-shadow: none;
                border-radius: 0;
                margin-top: 0.5rem;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .nav-item-mega:hover .mega-panel {
                display: none;
            }
            .mega-panel.mobile-show {
                display: block;
            }
            .process-connector {
                display: none;
            }
            .cta-banner {
                padding: 2rem 1.5rem;
            }
            .cta-banner h3 {
                font-size: 1.4rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }
            .brand-intro-block {
                padding: 1rem 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.4rem;
            }
            .hero-category {
                min-height: 26vh;
            }
            .hero-category .hero-subtitle {
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .card-custom .card-img-wrap img {
                height: 140px;
            }
            .scenario-block {
                height: 170px;
            }
            .btn-primary-custom,
            .btn-outline-custom,
            .btn-outline-white,
            .btn-accent {
                padding: 0.5rem 1.2rem;
                font-size: 0.9rem;
            }
            .stat-card {
                padding: 1rem;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

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

        h1 {
            font-size: 2.5rem;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: 2rem;
        }

        h3 {
            font-size: 1.5rem;
        }

        h4 {
            font-size: 1.25rem;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

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

        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }

        .navbar-brand:hover {
            opacity: 0.85;
        }

        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }

        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }

        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .has-mega {
            position: relative;
        }

        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }

        .has-mega:hover .mega-panel {
            display: block;
        }

        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .mega-section-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            display: block;
            margin-bottom: 0.75rem;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
            color: var(--color-text);
            text-decoration: none;
            margin-bottom: 0.5rem;
        }

        .mega-card:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-heading);
            line-height: 1.3;
        }

        .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mega-news-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }

        .mega-news-list li:last-child {
            border-bottom: none;
        }

        .mega-news-list a {
            font-size: 0.85rem;
            color: var(--color-text);
            display: block;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .mega-news-list a:hover {
            color: var(--color-primary);
        }

        .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
        }

        @media (max-width: 991px) {
            .has-mega {
                position: static;
            }
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0.75rem 1rem;
                background: rgba(255, 255, 255, 0.05);
                display: none;
            }
            .has-mega.show-mobile .mega-panel {
                display: block;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
            .mega-card {
                background: rgba(255, 255, 255, 0.06);
                border-radius: var(--radius-sm);
            }
            .mega-card-title {
                color: #E2E8F0;
            }
            .mega-section-label {
                color: #94A3B8;
            }
            .mega-news-list a {
                color: #CBD5E1;
            }
            .mega-news-date {
                color: #94A3B8;
            }
            .navbar-dark .navbar-nav .nav-link {
                padding: 0.55rem 1rem;
            }
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            border: none;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }

        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            border: none;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #158A3A;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }

        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }

        .card-custom .card-body {
            padding: 1.25rem;
        }

        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
        }

        .card-custom .card-text {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .card-custom .card-tag {
            display: inline-block;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }

        .card-custom-highlight {
            border: 2px solid var(--color-accent);
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .card-custom-highlight::before {
            content: '热门';
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            z-index: 2;
        }

        /* ========== BADGE / TAG ========== */
        .badge-custom {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
        }

        .badge-accent {
            display: inline-block;
            background: var(--color-accent-light);
            color: var(--color-accent);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
        }

        /* ========== SECTIONS ========== */
        .section-gap {
            padding: var(--section-gap) 0;
        }

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

        .section-heading {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-heading h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
            position: relative;
            display: inline-block;
        }

        .section-heading h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .section-heading p {
            color: var(--color-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            margin-top: 1rem;
        }

        .bg-surface {
            background: var(--color-surface);
        }

        .bg-dark-section {
            background: var(--color-secondary-dark);
            color: #E2E8F0;
        }

        .bg-dark-section h2,
        .bg-dark-section h3,
        .bg-dark-section h4 {
            color: #FFFFFF;
        }

        .bg-dark-section .section-heading p {
            color: #94A3B8;
        }

        /* ========== HERO ========== */
        .hero-tennis {
            position: relative;
            min-height: 70vh;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-tennis .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.7) 50%, rgba(15, 23, 42, 0.8) 100%);
            z-index: 1;
        }

        .hero-tennis .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 3rem 0;
        }

        .hero-tennis .hero-badge {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.5);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(255, 87, 34, 0);
            }
        }

        .hero-tennis h1 {
            color: #FFFFFF;
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .hero-tennis .hero-subtitle {
            color: #CBD5E1;
            font-size: 1.15rem;
            max-width: 550px;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }

        /* Countdown */
        .countdown-wrapper {
            display: flex;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            text-align: center;
            min-width: 80px;
            backdrop-filter: blur(4px);
        }

        .countdown-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1;
            display: block;
        }

        .countdown-label {
            font-size: 0.8rem;
            color: #94A3B8;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 0.25rem;
        }

        .hero-cta-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .hero-tennis {
                min-height: auto;
                padding: 4rem 0;
            }
            .hero-tennis h1 {
                font-size: 1.8rem;
            }
            .hero-tennis .hero-subtitle {
                font-size: 1rem;
            }
            .countdown-item {
                min-width: 60px;
                padding: 0.7rem 1rem;
            }
            .countdown-number {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 0.75rem;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
        }

        /* ========== STATS BAR ========== */
        .stats-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            padding: 1.5rem 0;
        }

        .stat-item {
            text-align: center;
            padding: 0.5rem;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 0.3rem;
        }

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

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

        .feature-icon-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--color-primary);
            font-size: 1.1rem;
        }

        /* ========== SCENARIO CARDS ========== */
        .scenario-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            background-size: cover;
            background-position: center;
            cursor: pointer;
            transition: all var(--transition-normal);
        }

        .scenario-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }

        .scenario-card .scenario-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.3) 60%, rgba(15, 23, 42, 0.1) 100%);
            display: flex;
            align-items: flex-end;
            padding: 1.5rem;
        }

        .scenario-card .scenario-info {
            color: #fff;
        }

        .scenario-card .scenario-info h4 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .scenario-card .scenario-info p {
            color: #CBD5E1;
            font-size: 0.85rem;
            margin: 0;
        }

        /* ========== PROCESS STEPS ========== */
        .process-step {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            padding: 1.5rem 0;
            position: relative;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 27px;
            top: 60px;
            bottom: 0;
            width: 2px;
            background: var(--color-border);
            border-radius: 1px;
        }

        .process-step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            z-index: 1;
        }

        .process-step-content h4 {
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--color-heading);
        }

        .process-step-content p {
            color: var(--color-muted);
            margin: 0;
            font-size: 0.95rem;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            background: var(--color-surface);
            overflow: hidden;
        }

        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-heading);
            background: transparent;
            box-shadow: none;
            padding: 1rem 1.25rem;
            border-radius: 0;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }

        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            color: var(--color-text);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #E64A19 100%);
            padding: 4rem 0;
            text-align: center;
            border-radius: 0;
        }

        .cta-section h2 {
            color: #fff;
            font-weight: 800;
            font-size: 2rem;
            margin-bottom: 1rem;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .cta-section .btn-cta-white {
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            padding: 0.75rem 2.5rem;
            border-radius: var(--radius-sm);
            border: none;
            font-size: 1.05rem;
            transition: all var(--transition-fast);
            display: inline-block;
        }

        .cta-section .btn-cta-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
            color: var(--color-primary-hover);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
            padding: 3rem 0 0;
        }

        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }

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

        .footer-links li {
            margin-bottom: 0.4rem;
        }

        .footer-links a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 1.25rem 0;
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #94A3B8;
            gap: 0.75rem;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: color var(--transition-fast);
        }

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

        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 0.5rem;
            }
            .section-gap {
                padding: var(--section-gap-mobile) 0;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .section-heading h2 {
                font-size: 1.5rem;
            }
            .process-step {
                gap: 1rem;
            }
            .process-step-number {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .process-step:not(:last-child)::after {
                left: 21px;
                top: 50px;
            }
            .scenario-card {
                height: 220px;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .countdown-wrapper {
                gap: 0.5rem;
            }
            .countdown-item {
                min-width: 55px;
                padding: 0.5rem 0.7rem;
            }
            .countdown-number {
                font-size: 1.2rem;
            }
            .hero-tennis h1 {
                font-size: 1.5rem;
            }
            .hero-tennis .hero-subtitle {
                font-size: 0.9rem;
            }
            .section-heading {
                margin-bottom: 2rem;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-custom {
            background: transparent;
            padding: 0.75rem 0;
            margin: 0;
            font-size: 0.9rem;
        }

        .breadcrumb-custom .breadcrumb-item a {
            color: var(--color-muted);
        }

        .breadcrumb-custom .breadcrumb-item a:hover {
            color: var(--color-primary);
        }

        .breadcrumb-custom .breadcrumb-item.active {
            color: var(--color-heading);
            font-weight: 600;
        }

        .breadcrumb-custom .breadcrumb-item+.breadcrumb-item::before {
            color: var(--color-muted);
            content: "›";
            font-size: 1.2rem;
            line-height: 1;
        }

/* roulang page: category5 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-hover);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .navbar {
            padding: 0;
            min-height: 62px;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }
        .navbar-brand:hover {
            opacity: 0.85;
        }
        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }
        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }
        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        /* Mega Menu */
        .mega-dropdown {
            position: relative;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }
        .mega-dropdown:hover .mega-panel {
            display: block;
        }
        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }
        .mega-section-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            display: block;
            margin-bottom: 0.75rem;
            grid-column: 1 / -1;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
            color: var(--color-heading);
            text-decoration: none;
        }
        .mega-card:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }
        .mega-card-img {
            width: 56px;
            height: 42px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            line-height: 1.3;
            color: inherit;
        }
        .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mega-news-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .mega-news-list li:last-child {
            border-bottom: none;
        }
        .mega-news-list a {
            font-size: 0.85rem;
            color: var(--color-text);
            display: block;
            line-height: 1.4;
            transition: color var(--transition-fast);
        }
        .mega-news-list a:hover {
            color: var(--color-primary);
        }
        .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
            display: block;
            margin-top: 2px;
        }
        /* ========== BREADCRUMB ========== */
        .breadcrumb-section {
            background: #fff;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .breadcrumb {
            margin: 0;
            padding: 0;
            font-size: 0.85rem;
        }
        .breadcrumb-item a {
            color: var(--color-muted);
        }
        .breadcrumb-item.active {
            color: var(--color-primary);
            font-weight: 500;
        }
        /* ========== HERO COUPON WALL ========== */
        .hero-coupon {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-coupon::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.75) 50%, rgba(15, 23, 42, 0.88) 100%);
            z-index: 1;
        }
        .hero-coupon-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 3rem 0;
        }
        .hero-coupon-label {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 1rem;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(22, 163, 74, 0);
            }
        }
        .hero-coupon h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 0.75rem;
            line-height: 1.2;
        }
        .hero-coupon .hero-subtitle {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            max-width: 600px;
        }
        .coupon-wall {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            flex-wrap: wrap;
            margin-top: 1rem;
        }
        .coupon-main {
            flex: 1 1 380px;
            max-width: 440px;
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 2rem 2rem 1.75rem;
            box-shadow: var(--shadow-xl);
            position: relative;
            border: 3px dashed var(--color-primary);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
        }
        .coupon-main:hover {
            transform: translateY(-6px);
            box-shadow: 0 20px 50px rgba(255, 87, 34, 0.25);
        }
        .coupon-main .coupon-ribbon {
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--color-primary);
            color: #fff;
            padding: 0.3rem 1.2rem;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.04em;
        }
        .coupon-main .coupon-icon {
            width: 56px;
            height: 56px;
            background: var(--color-primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--color-primary);
            margin-bottom: 1rem;
        }
        .coupon-main .coupon-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
        }
        .coupon-main .coupon-desc {
            color: var(--color-muted);
            font-size: 0.95rem;
            margin-bottom: 1rem;
            line-height: 1.5;
        }
        .coupon-main .coupon-value {
            font-size: 3rem;
            font-weight: 900;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 0.25rem;
        }
        .coupon-main .coupon-value span {
            font-size: 1.2rem;
            font-weight: 600;
        }
        .coupon-main .coupon-expiry {
            font-size: 0.8rem;
            color: var(--color-muted);
            margin-bottom: 1.25rem;
        }
        .coupon-mini-stack {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            flex: 1 1 200px;
            max-width: 280px;
        }
        .coupon-mini {
            background: rgba(255, 255, 255, 0.95);
            border-radius: var(--radius-lg);
            padding: 1rem 1.25rem;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            cursor: pointer;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            border-left: 4px solid var(--color-accent);
        }
        .coupon-mini:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-lg);
        }
        .coupon-mini .mini-icon {
            width: 40px;
            height: 40px;
            background: var(--color-accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .coupon-mini .mini-info {
            flex: 1;
        }
        .coupon-mini .mini-title {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-heading);
            line-height: 1.3;
        }
        .coupon-mini .mini-value {
            font-size: 0.8rem;
            color: var(--color-muted);
        }
        /* ========== SECTION COMMONS ========== */
        .section {
            padding: var(--section-gap) 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-dark {
            background: var(--color-secondary-dark);
            color: #fff;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .section-subtitle {
            color: var(--color-muted);
            font-size: 1.05rem;
            margin-bottom: 2.5rem;
            max-width: 650px;
        }
        .text-center .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        /* ========== CARDS ========== */
        .card-custom {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-normal), box-shadow var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .card-custom .card-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .card-custom .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-custom:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .card-custom .card-body {
            padding: 1.25rem;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }
        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-heading);
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .card-custom .card-text {
            font-size: 0.9rem;
            color: var(--color-muted);
            line-height: 1.5;
        }
        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            border: none;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 87, 34, 0.35);
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 87, 34, 0.3);
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            font-weight: 700;
            border: 2px solid #fff;
            transition: all var(--transition-fast);
            font-size: 0.95rem;
        }
        .btn-white:hover {
            background: transparent;
            color: #fff;
            border-color: #fff;
        }
        .btn-lg-custom {
            padding: 0.8rem 2.4rem;
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        /* ========== FEATURE LIST ========== */
        .feature-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .feature-list li {
            padding: 0.6rem 0 0.6rem 2rem;
            position: relative;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.6;
            border-bottom: 1px solid var(--color-border-light);
        }
        .feature-list li:last-child {
            border-bottom: none;
        }
        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            background: var(--color-accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .feature-list li::after {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 4px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 0.65rem;
            color: var(--color-accent);
        }
        /* ========== STATS ROW ========== */
        .stat-card {
            text-align: center;
            padding: 1.5rem;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: transform var(--transition-fast);
        }
        .stat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 0.3rem;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            font-weight: 500;
        }
        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 0.75rem;
            background: #fff;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-heading);
            background: #fff;
            box-shadow: none;
            padding: 1rem 1.25rem;
            border-radius: var(--radius-md) !important;
            transition: all var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
            border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }
        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.7;
        }
        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #E64A19 100%);
            padding: 3.5rem 0;
            border-radius: 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-weight: 800;
            font-size: 2rem;
            margin-bottom: 0.5rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
            max-width: 550px;
        }
        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
            padding: 2.5rem 0 1.5rem;
            font-size: 0.9rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
        }
        .footer-links li a {
            color: #CBD5E1;
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 1.5rem;
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: #94A3B8;
        }
        .footer-bottom a {
            color: #CBD5E1;
            font-size: 0.8rem;
        }
        .footer-bottom a:hover {
            color: var(--color-primary);
        }
        /* ========== SCENARIO BLOCK ========== */
        .scenario-block {
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }
        .scenario-block.reverse {
            flex-direction: row-reverse;
        }
        .scenario-img {
            flex: 1 1 400px;
            min-width: 280px;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .scenario-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .scenario-text {
            flex: 1 1 350px;
            min-width: 260px;
        }
        .scenario-text h3 {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--color-heading);
            margin-bottom: 0.75rem;
        }
        .scenario-text p {
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 1rem;
        }
        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-coupon h1 {
                font-size: 2.2rem;
            }
            .coupon-wall {
                flex-direction: column;
                align-items: stretch;
            }
            .coupon-main {
                max-width: 100%;
            }
            .coupon-mini-stack {
                max-width: 100%;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .coupon-mini {
                flex: 1 1 160px;
            }
            .mega-panel {
                width: 480px;
                left: auto;
                right: 0;
                transform: none;
            }
            .section {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .navbar-nav {
                padding: 1rem 0;
            }
            .navbar-dark .navbar-nav .nav-link {
                padding: 0.5rem 0.75rem;
                font-size: 0.9rem;
            }
            .mega-panel {
                position: static;
                width: 100%;
                transform: none;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 1rem;
                background: rgba(255, 255, 255, 0.05);
            }
            .mega-dropdown:hover .mega-panel {
                display: block;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .hero-coupon {
                min-height: 400px;
            }
            .hero-coupon h1 {
                font-size: 1.7rem;
            }
            .hero-coupon .hero-subtitle {
                font-size: 0.95rem;
            }
            .coupon-main .coupon-value {
                font-size: 2.2rem;
            }
            .coupon-mini-stack {
                flex-direction: column;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .scenario-block {
                flex-direction: column !important;
                gap: 1.25rem;
            }
            .scenario-img img {
                height: 220px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .hero-coupon h1 {
                font-size: 1.4rem;
            }
            .hero-coupon {
                min-height: 340px;
            }
            .coupon-main {
                padding: 1.25rem;
            }
            .coupon-main .coupon-value {
                font-size: 1.8rem;
            }
            .card-custom .card-img-wrap {
                height: 160px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .navbar {
            padding: 0;
            min-height: 62px;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }
        .navbar-brand:hover {
            opacity: 0.85;
        }
        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }
        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }
        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }
        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .mega-menu-wrapper {
            position: relative;
        }
        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }
        .mega-menu-wrapper:hover .mega-panel,
        .mega-panel:hover {
            display: block;
        }
        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }
        .mega-section-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.75rem;
            display: block;
        }
        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            color: var(--color-heading);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
        }
        .mega-card:hover {
            background: var(--color-border-light);
            color: var(--color-primary);
        }
        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mega-news-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }
        .mega-news-list li:last-child {
            border-bottom: none;
        }
        .mega-news-list a {
            font-size: 0.85rem;
            color: var(--color-text);
            font-weight: 500;
            transition: color var(--transition-fast);
        }
        .mega-news-list a:hover {
            color: var(--color-primary);
        }
        .mega-news-list .news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
            display: block;
        }

        @media (max-width: 991.98px) {
            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0.75rem 1rem;
                background: rgba(255, 255, 255, 0.05);
                margin-top: 0;
                display: none;
            }
            .mega-menu-wrapper:hover .mega-panel,
            .mega-panel:hover {
                display: none;
            }
            .mega-panel.show-mobile {
                display: block;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .mega-card {
                color: #fff;
            }
            .mega-card:hover {
                background: rgba(255, 255, 255, 0.1);
                color: #fff;
            }
            .mega-section-label {
                color: rgba(255, 255, 255, 0.6);
            }
            .mega-news-list a {
                color: rgba(255, 255, 255, 0.85);
            }
            .mega-news-list a:hover {
                color: #fff;
            }
            .mega-news-list .news-date {
                color: rgba(255, 255, 255, 0.5);
            }
            .mega-news-list li {
                border-bottom-color: rgba(255, 255, 255, 0.1);
            }
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 600;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-sm);
        }
        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline-custom {
            border: 2px solid var(--color-primary);
            background: transparent;
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }
        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .btn-outline-white {
            border: 2px solid #FFFFFF;
            background: transparent;
            color: #FFFFFF;
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
        }
        .btn-outline-white:hover {
            background: #FFFFFF;
            color: var(--color-primary);
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 600;
            transition: all var(--transition-fast);
        }
        .btn-accent:hover {
            background: #158a3d;
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
        }
        .card-custom .card-img-top {
            height: 200px;
            object-fit: cover;
            width: 100%;
        }
        .card-custom .card-body {
            padding: 1.25rem;
        }
        .card-custom .card-title {
            font-weight: 700;
            color: var(--color-heading);
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .card-custom .card-text {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }

        /* ========== SECTIONS ========== */
        .section-padding {
            padding: var(--section-gap) 0;
        }
        .section-padding-sm {
            padding: 48px 0;
        }
        .section-title {
            font-weight: 800;
            color: var(--color-heading);
            font-size: 2rem;
            margin-bottom: 0.75rem;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .section-subtitle {
            color: var(--color-muted);
            font-size: 1.05rem;
            max-width: 700px;
            margin-bottom: 2rem;
        }
        .bg-dark-section {
            background: var(--color-secondary-dark);
        }
        .bg-light-section {
            background: var(--color-surface);
        }
        .bg-primary-light-section {
            background: var(--color-primary-light);
        }

        /* ========== HERO ========== */
        .hero-category {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.7) 50%, rgba(15, 23, 42, 0.8) 100%);
            z-index: 1;
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-category .hero-badge {
            display: inline-block;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            letter-spacing: 0.05em;
            margin-bottom: 1rem;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 87, 34, 0.5);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(255, 87, 34, 0);
            }
        }
        .hero-category .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.25;
            margin-bottom: 0.75rem;
        }
        .hero-category .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        .countdown-timer {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }
        .countdown-item {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            padding: 0.75rem 1.1rem;
            text-align: center;
            min-width: 70px;
            backdrop-filter: blur(4px);
        }
        .countdown-item .countdown-num {
            font-size: 2rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1;
            display: block;
        }
        .countdown-item .countdown-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
            display: block;
        }
        .hero-subscribe-form {
            display: flex;
            gap: 0.5rem;
            max-width: 450px;
            flex-wrap: wrap;
        }
        .hero-subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 0.65rem 1rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.95rem;
            backdrop-filter: blur(4px);
        }
        .hero-subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .hero-subscribe-form input:focus {
            outline: none;
            border-color: var(--color-primary);
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.25);
        }

        @media (max-width: 768px) {
            .hero-category {
                min-height: 440px;
            }
            .hero-category .hero-title {
                font-size: 2rem;
            }
            .hero-category .hero-subtitle {
                font-size: 1rem;
            }
            .countdown-item {
                min-width: 55px;
                padding: 0.5rem 0.7rem;
            }
            .countdown-item .countdown-num {
                font-size: 1.5rem;
            }
            .hero-subscribe-form {
                flex-direction: column;
            }
            .hero-subscribe-form input {
                min-width: auto;
            }
        }

        /* ========== FEATURE LIST ========== */
        .feature-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }
        .feature-icon-circle.orange {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .feature-icon-circle.green {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        /* ========== SPORT GRID ========== */
        .sport-grid-item {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            border: 1px solid var(--color-border);
            text-align: center;
            transition: all var(--transition-normal);
            height: 100%;
            cursor: default;
        }
        .sport-grid-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary);
            transform: translateY(-3px);
        }
        .sport-grid-item .sport-icon {
            font-size: 2.5rem;
            margin-bottom: 0.75rem;
            display: block;
        }
        .sport-grid-item .sport-name {
            font-weight: 700;
            color: var(--color-heading);
            font-size: 1.1rem;
            margin-bottom: 0.35rem;
        }
        .sport-grid-item .sport-desc {
            font-size: 0.85rem;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ========== SCHEDULE TABLE ========== */
        .schedule-row {
            display: flex;
            align-items: center;
            padding: 0.9rem 1.2rem;
            border-radius: var(--radius-sm);
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            margin-bottom: 0.5rem;
            transition: all var(--transition-fast);
            gap: 1rem;
            flex-wrap: wrap;
        }
        .schedule-row:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary);
        }
        .schedule-date {
            font-weight: 700;
            color: var(--color-primary);
            font-size: 0.9rem;
            white-space: nowrap;
            min-width: 90px;
        }
        .schedule-event {
            font-weight: 600;
            color: var(--color-heading);
            flex: 1;
            min-width: 180px;
        }
        .schedule-tag {
            font-size: 0.78rem;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            font-weight: 600;
            white-space: nowrap;
        }
        .schedule-tag.live {
            background: #FEE2E2;
            color: #DC2626;
        }
        .schedule-tag.upcoming {
            background: #FEF3C7;
            color: #D97706;
        }
        .schedule-tag.ended {
            background: #E2E8F0;
            color: #64748B;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.6rem;
            overflow: hidden;
            background: var(--color-surface);
        }
        .accordion-custom .accordion-button {
            font-weight: 700;
            color: var(--color-heading);
            background: var(--color-surface);
            box-shadow: none;
            padding: 1rem 1.25rem;
            font-size: 1rem;
            transition: all var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left: 4px solid var(--color-primary);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 87, 34, 0.2);
            border-color: var(--color-primary);
        }
        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            color: var(--color-text);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, #E64A19 100%);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
        }
        .cta-banner h2 {
            font-weight: 800;
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }
        .cta-banner p {
            font-size: 1.05rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            padding: 3rem 0 1.5rem;
            color: #CBD5E1;
        }
        .site-footer .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.35rem;
        }
        .site-footer .footer-links a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: #94A3B8;
        }
        .site-footer .footer-bottom a {
            color: #94A3B8;
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-category .hero-title {
                font-size: 1.8rem;
            }
            .countdown-timer {
                gap: 0.5rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .schedule-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #FF5722;
            --color-primary-hover: #E64A19;
            --color-primary-light: #FFF3EF;
            --color-secondary: #1E293B;
            --color-secondary-dark: #0F172A;
            --color-accent: #16A34A;
            --color-accent-light: #DCFCE7;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #334155;
            --color-heading: #0F172A;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.15);
            --transition-fast: 0.2s ease;
            --transition-normal: 0.3s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
            --section-gap: 80px;
            --section-gap-mobile: 48px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        button:focus-visible,
        .btn:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        .container {
            max-width: 1280px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ========== HEADER / NAVIGATION ========== */
        .site-header {
            background: var(--color-secondary);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

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

        .navbar-brand {
            font-weight: 700;
            font-size: 1.35rem;
            color: #FFFFFF !important;
            letter-spacing: 0.02em;
            white-space: nowrap;
            padding: 0.5rem 0;
            transition: opacity var(--transition-fast);
        }

        .navbar-brand:hover {
            opacity: 0.85;
        }

        .navbar-brand .brand-icon {
            display: inline-block;
            width: 34px;
            height: 34px;
            background: var(--color-primary);
            border-radius: 50%;
            text-align: center;
            line-height: 34px;
            margin-right: 8px;
            font-size: 1rem;
            vertical-align: middle;
            color: #fff;
        }

        .navbar-dark .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.6rem 1rem;
            transition: color var(--transition-fast), background var(--transition-fast);
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
        }

        .navbar-dark .navbar-nav .nav-link:hover,
        .navbar-dark .navbar-nav .nav-link:focus {
            color: #FFFFFF;
            background: rgba(255, 255, 255, 0.08);
        }

        .navbar-dark .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-dark .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: var(--color-primary);
            border-radius: 1px;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 2px rgba(255, 87, 34, 0.5);
            border-color: var(--color-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(255,255,255,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Mega Menu */
        .nav-item.dropdown-mega {
            position: relative;
        }

        .mega-panel {
            display: none;
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            background: #FFFFFF;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            padding: 1.5rem;
            width: 620px;
            z-index: 1060;
            border: 1px solid var(--color-border);
            margin-top: 0;
        }

        .nav-item.dropdown-mega:hover .mega-panel {
            display: block;
        }

        .mega-panel .mega-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }

        .mega-section-label {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            display: block;
            margin-bottom: 0.75rem;
        }

        .mega-card {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.6rem;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast);
            color: var(--color-heading);
            text-decoration: none;
        }

        .mega-card:hover {
            background: var(--color-bg);
            color: var(--color-primary);
        }

        .mega-card-img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .mega-card-title {
            font-weight: 600;
            font-size: 0.9rem;
            line-height: 1.3;
        }

        .mega-news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mega-news-list li {
            padding: 0.4rem 0;
            border-bottom: 1px solid var(--color-border-light);
        }

        .mega-news-list li:last-child {
            border-bottom: none;
        }

        .mega-news-list a {
            font-size: 0.85rem;
            color: var(--color-text);
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .mega-news-list a:hover {
            color: var(--color-primary);
        }

        .mega-news-date {
            font-size: 0.75rem;
            color: var(--color-muted);
            flex-shrink: 0;
            margin-left: 0.75rem;
        }

        /* ========== BUTTONS ========== */
        .btn-primary-custom {
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 600;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-primary-custom:hover {
            background: var(--color-primary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-outline-custom:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-white-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-sm);
            padding: 0.55rem 1.7rem;
            font-weight: 600;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .btn-white-outline:hover {
            background: #fff;
            color: var(--color-secondary);
            border-color: #fff;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.8rem;
            border: none;
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-accent:hover {
            background: #15803d;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        /* ========== CARDS ========== */
        .card-custom {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            overflow: hidden;
            height: 100%;
        }

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

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

        .card-custom .card-body {
            padding: 1.25rem;
        }

        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-heading);
            margin-bottom: 0.5rem;
        }

        .card-custom .card-text {
            color: var(--color-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .card-custom .card-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }

        /* ========== SECTION STYLES ========== */
        .section-gap {
            padding: var(--section-gap) 0;
        }

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

        .section-title {
            font-weight: 700;
            font-size: 2rem;
            color: var(--color-heading);
            margin-bottom: 0.75rem;
            position: relative;
        }

        .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 2px;
            margin-top: 0.5rem;
        }

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

        .section-subtitle {
            color: var(--color-muted);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 700px;
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 55vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(30, 41, 59, 0.7) 50%, rgba(15, 23, 42, 0.8) 100%);
            z-index: 1;
        }

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

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.25;
            margin-bottom: 1rem;
            letter-spacing: 0.01em;
        }

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

        .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 1.5rem;
            max-width: 600px;
        }

        .hero-badge {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.35rem 1rem;
            border-radius: 20px;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        /* Time Slot Cards in Hero */
        .time-slot-row {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin-bottom: 1.5rem;
        }

        .time-slot-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-md);
            padding: 0.75rem 1.1rem;
            color: #fff;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition-fast);
            min-width: 80px;
        }

        .time-slot-card:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--color-primary);
            transform: translateY(-2px);
        }

        .time-slot-card .slot-day {
            font-weight: 700;
            font-size: 0.9rem;
            display: block;
        }

        .time-slot-card .slot-time {
            font-size: 0.75rem;
            opacity: 0.8;
            display: block;
            margin-top: 2px;
        }

        .time-slot-card.featured {
            background: var(--color-primary);
            border-color: var(--color-primary);
            box-shadow: 0 4px 16px rgba(255, 87, 34, 0.4);
        }

        /* ========== FEATURE BLOCK ========== */
        .feature-icon-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            flex-shrink: 0;
            margin-bottom: 0.75rem;
        }

        .feature-icon-circle.orange {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .feature-icon-circle.green {
            background: var(--color-accent-light);
            color: var(--color-accent);
        }

        .feature-icon-circle.dark {
            background: #E2E8F0;
            color: var(--color-secondary);
        }

        /* ========== PRICE TABLE ========== */
        .price-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            border: 2px solid var(--color-border);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition-normal);
            position: relative;
            height: 100%;
        }

        .price-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .price-card.featured-plan {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
            background: #fff;
        }

        .price-card.featured-plan::before {
            content: '热门推荐';
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--color-accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 0.3rem 1.2rem;
            border-radius: 20px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .price-amount {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-heading);
        }

        .price-amount .currency {
            font-size: 1.2rem;
            font-weight: 600;
            vertical-align: super;
        }

        .price-period {
            color: var(--color-muted);
            font-size: 0.9rem;
            margin-bottom: 1rem;
        }

        .price-feature-list {
            list-style: none;
            padding: 0;
            margin: 0 0 1.5rem 0;
            text-align: left;
        }

        .price-feature-list li {
            padding: 0.4rem 0;
            font-size: 0.9rem;
            color: var(--color-text);
            border-bottom: 1px solid var(--color-border-light);
        }

        .price-feature-list li i {
            color: var(--color-accent);
            margin-right: 0.5rem;
        }

        /* ========== FAQ ========== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: var(--color-surface);
        }

        .accordion-custom .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-heading);
            background: transparent;
            box-shadow: none;
            padding: 1rem 1.25rem;
            transition: all var(--transition-fast);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-left: 3px solid var(--color-primary);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-color: var(--color-primary);
        }

        .accordion-custom .accordion-body {
            padding: 1rem 1.25rem;
            color: var(--color-text);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-secondary);
            border-radius: var(--radius-xl);
            padding: 3rem 2rem;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            background: var(--color-primary);
            border-radius: 50%;
            opacity: 0.15;
        }

        /* ========== STATS ROW ========== */
        .stat-item {
            text-align: center;
            padding: 1rem;
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-muted);
            margin-top: 0.25rem;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-secondary-dark);
            color: #CBD5E1;
            padding: 3rem 0 1.5rem;
            margin-top: var(--section-gap);
        }

        .footer-brand {
            font-weight: 700;
            font-size: 1.3rem;
            color: #FFFFFF;
            margin-bottom: 0.75rem;
        }

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

        .footer-links li {
            margin-bottom: 0.4rem;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: #94A3B8;
            gap: 0.75rem;
        }

        .footer-bottom a {
            color: #CBD5E1;
            font-size: 0.85rem;
        }

        .footer-bottom a:hover {
            color: #FFFFFF;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .mega-panel {
                width: 480px;
                padding: 1rem;
            }
            .section-gap {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 50vh;
                text-align: center;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 1rem;
                margin-left: auto;
                margin-right: auto;
            }
            .time-slot-row {
                justify-content: center;
            }
            .hero-buttons {
                justify-content: center;
            }
            .section-gap {
                padding: var(--section-gap-mobile) 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .mega-panel {
                width: 100%;
                left: 0;
                transform: none;
                position: static;
                box-shadow: none;
                border-radius: 0;
                border: none;
                padding: 0.75rem;
            }
            .nav-item.dropdown-mega:hover .mega-panel {
                display: none;
            }
            .nav-item.dropdown-mega .mega-panel.show {
                display: block;
            }
            .mega-panel .mega-grid {
                grid-template-columns: 1fr;
            }
            .navbar-collapse {
                background: var(--color-secondary);
                padding: 0.75rem 1rem;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .price-card {
                margin-bottom: 1rem;
            }
            .cta-section {
                text-align: center;
                padding: 2rem 1rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .card-custom .card-img-top {
                height: 160px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-section {
                min-height: 45vh;
            }
            .time-slot-card {
                min-width: 60px;
                padding: 0.5rem 0.7rem;
            }
            .time-slot-card .slot-day {
                font-size: 0.75rem;
            }
            .time-slot-card .slot-time {
                font-size: 0.7rem;
            }
            .btn-primary-custom,
            .btn-outline-custom,
            .btn-white-outline {
                padding: 0.5rem 1.2rem;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .price-amount {
                font-size: 2rem;
            }
        }