/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e40af;
            --primary-dark: #1e3a8a;
            --primary-light: #3b82f6;
            --secondary: #f59e0b;
            --secondary-dark: #d97706;
            --accent: #f97316;
            --dark: #0f172a;
            --dark-soft: #1e293b;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
            --light: #f8fafc;
            --white: #ffffff;
            --glass-bg: rgba(255, 255, 255, 0.12);
            --glass-border: rgba(255, 255, 255, 0.25);
            --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.18);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--dark);
            background: var(--light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: 80px;
        }

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

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

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

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

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 ===== */
        .navbar-transparent {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            padding: 0.75rem 0;
            background: var(--glass-bg);
            backdrop-filter: blur(18px) saturate(180%);
            -webkit-backdrop-filter: blur(18px) saturate(180%);
            border-bottom: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow);
            transition: var(--transition);
        }

        .navbar-transparent.navbar-scrolled {
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(24px) saturate(200%);
            -webkit-backdrop-filter: blur(24px) saturate(200%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.30);
            padding: 0.5rem 0;
        }

        .navbar-transparent .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
        }
        .navbar-transparent .navbar-brand i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .navbar-transparent .navbar-brand:hover {
            color: var(--secondary);
        }

        .navbar-transparent .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 500;
            font-size: 1rem;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-transparent .nav-link:hover,
        .navbar-transparent .nav-link.active {
            color: var(--white) !important;
            background: rgba(255, 255, 255, 0.10);
        }
        .navbar-transparent .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .navbar-transparent .nav-cta {
            background: var(--secondary);
            color: var(--dark) !important;
            font-weight: 700;
            padding: 0.5rem 1.4rem !important;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .navbar-transparent .nav-cta:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.40);
            color: var(--dark) !important;
        }

        .navbar-transparent .navbar-toggler {
            border: none;
            color: var(--white);
            font-size: 1.5rem;
            padding: 0.25rem 0.5rem;
            background: rgba(255, 255, 255, 0.10);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .navbar-transparent .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.20);
        }
        .navbar-transparent .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            margin-top: -80px;
            padding-top: 80px;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.82) 0%, rgba(30, 64, 175, 0.55) 60%, rgba(15, 23, 42, 0.75) 100%);
            z-index: 1;
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(245, 158, 11, 0.12) 0%, transparent 60%);
            z-index: 2;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            color: var(--white);
            max-width: 860px;
            padding: 2rem 1.5rem;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.20);
            padding: 0.4rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            letter-spacing: 0.3px;
            color: rgba(255, 255, 255, 0.90);
            margin-bottom: 1.5rem;
        }
        .hero-section .hero-badge i {
            color: var(--secondary);
            font-size: 0.9rem;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.2);
            }
        }
        .hero-section h1 {
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.30);
        }
        .hero-section h1 .highlight {
            color: var(--secondary);
        }
        .hero-section .hero-sub {
            font-size: clamp(1.05rem, 2.2vw, 1.4rem);
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.7;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.20);
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            align-items: center;
        }
        .hero-section .btn-hero-primary {
            background: var(--secondary);
            color: var(--dark);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 0.85rem 2.5rem;
            border: none;
            border-radius: var(--radius-md);
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.35);
        }
        .hero-section .btn-hero-primary:hover {
            background: var(--secondary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 158, 11, 0.50);
            color: var(--dark);
        }
        .hero-section .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(6px);
            color: var(--white);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.85rem 2.2rem;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .hero-section .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.20);
            transform: translateY(-3px);
            color: var(--white);
            border-color: rgba(255, 255, 255, 0.40);
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem 3rem;
            justify-content: center;
            margin-top: 2.8rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-section .hero-stats .stat-item {
            text-align: center;
        }
        .hero-section .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .hero-section .hero-stats .stat-number .small {
            font-size: 1rem;
            font-weight: 400;
            opacity: 0.7;
        }
        .hero-section .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.70);
            margin-top: 0.2rem;
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: var(--dark);
            text-align: center;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            text-align: center;
            font-size: 1.1rem;
            color: var(--gray-500);
            max-width: 640px;
            margin: 0 auto 3rem;
            line-height: 1.7;
        }
        .section-subtitle.light {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-title.light {
            color: var(--white);
        }

        /* ===== 热门赛事卡片 ===== */
        .sports-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
        }
        .sport-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
        }
        .sport-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .sport-card .card-img {
            height: 180px;
            background: var(--gray-200);
            position: relative;
            overflow: hidden;
        }
        .sport-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .sport-card:hover .card-img img {
            transform: scale(1.05);
        }
        .sport-card .card-img .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--secondary);
            color: var(--dark);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }
        .sport-card .card-img .card-tag.live {
            background: #ef4444;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .sport-card .card-img .card-tag.live i {
            font-size: 0.6rem;
            animation: pulse-dot 1.2s infinite;
        }
        .sport-card .card-body {
            padding: 1.25rem 1.25rem 1.5rem;
        }
        .sport-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            color: var(--dark);
        }
        .sport-card .card-body p {
            font-size: 0.9rem;
            color: var(--gray-500);
            margin-bottom: 0;
            line-height: 1.6;
        }
        .sport-card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 0.8rem;
            font-size: 0.8rem;
            color: var(--gray-400);
        }
        .sport-card .card-body .card-meta i {
            margin-right: 0.3rem;
        }

        /* ===== 数据/优势 ===== */
        .stats-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 2rem;
            text-align: center;
        }
        .stats-grid .stat-box {
            padding: 1.5rem 0.5rem;
        }
        .stats-grid .stat-box .icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 0.8rem;
        }
        .stats-grid .stat-box .number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stats-grid .stat-box .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.70);
            margin-top: 0.3rem;
        }

        /* ===== 赛事分类板块 ===== */
        .category-feature {
            background: var(--white);
        }
        .category-feature .cat-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }
        .category-feature .cat-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            height: 320px;
        }
        .category-feature .cat-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-feature .cat-image:hover img {
            transform: scale(1.03);
        }
        .category-feature .cat-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: var(--dark);
        }
        .category-feature .cat-text p {
            color: var(--gray-500);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 1.2rem;
        }
        .category-feature .cat-text .cat-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 0.8rem;
        }
        .category-feature .cat-text .cat-tags .tag {
            background: var(--gray-100);
            color: var(--gray-600);
            font-size: 0.8rem;
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-weight: 500;
            transition: var(--transition);
        }
        .category-feature .cat-text .cat-tags .tag:hover {
            background: var(--primary);
            color: var(--white);
        }
        .category-feature .btn-outline-primary-custom {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            font-weight: 600;
            padding: 0.6rem 1.8rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .category-feature .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(30, 64, 175, 0.30);
        }

        /* ===== 最新资讯 (CMS) ===== */
        .news-section {
            background: var(--gray-100);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .news-card .news-img {
            height: 170px;
            background: var(--gray-200);
            overflow: hidden;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .news-img img {
            transform: scale(1.05);
        }
        .news-card .news-body {
            padding: 1.2rem 1.2rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .news-body .news-cat {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.4rem;
        }
        .news-card .news-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .news-card .news-body p {
            font-size: 0.88rem;
            color: var(--gray-500);
            line-height: 1.6;
            margin-bottom: 0.8rem;
            flex: 1;
        }
        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--gray-400);
            border-top: 1px solid var(--gray-200);
            padding-top: 0.7rem;
        }
        .news-card .news-body .news-meta i {
            margin-right: 0.3rem;
        }
        .news-empty {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--gray-500);
            font-size: 1.05rem;
            background: var(--white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px dashed var(--gray-300);
        }
        .news-empty i {
            font-size: 2rem;
            color: var(--gray-400);
            margin-bottom: 0.8rem;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .faq-item {
            background: var(--light);
            border-radius: var(--radius-md);
            border: 1px solid var(--gray-200);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--gray-300);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--dark);
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 1rem;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-question i {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--gray-600);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-content {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-section .cta-content h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: var(--white);
            margin-bottom: 1rem;
        }
        .cta-section .cta-content p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 1.8rem;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            background: var(--secondary);
            color: var(--dark);
            font-weight: 700;
            font-size: 1.1rem;
            padding: 0.9rem 2.8rem;
            border: none;
            border-radius: var(--radius-md);
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.30);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 158, 11, 0.50);
            color: var(--dark);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-soft);
            color: rgba(255, 255, 255, 0.80);
            padding: 3rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .site-footer .footer-brand i {
            color: var(--secondary);
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
            line-height: 1.7;
        }
        .site-footer .footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.8rem;
            justify-content: center;
        }
        .site-footer .footer-nav a {
            color: rgba(255, 255, 255, 0.70);
            font-size: 0.92rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .site-footer .footer-nav a:hover {
            color: var(--secondary);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 0.8rem;
            justify-content: center;
            margin-top: 1.2rem;
        }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.70);
            font-size: 1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: var(--dark);
            transform: translateY(-3px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.40);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-feature .cat-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .category-feature .cat-image {
                height: 250px;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 80vh;
            }
            .hero-section h1 {
                font-size: clamp(1.8rem, 5vw, 2.8rem);
            }
            .hero-section .hero-stats {
                gap: 1.2rem 2rem;
            }
            .hero-section .hero-stats .stat-number {
                font-size: 1.4rem;
            }
            .section-padding {
                padding: 3.5rem 0;
            }
            .sports-grid {
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .stats-grid .stat-box .number {
                font-size: 2rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
                padding: 1rem 1.2rem;
            }
            .faq-item .faq-answer {
                padding: 0 1.2rem 1rem;
                font-size: 0.9rem;
            }
            .site-footer .footer-nav {
                flex-direction: column;
                align-items: center;
                gap: 0.5rem;
            }
            .site-footer .footer-desc {
                max-width: 100%;
                text-align: center;
            }
            .site-footer .footer-brand {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            body {
                padding-top: 70px;
            }
            .navbar-transparent {
                padding: 0.4rem 0;
            }
            .navbar-transparent .navbar-brand {
                font-size: 1.2rem;
            }
            .hero-section {
                min-height: 70vh;
                margin-top: -70px;
                padding-top: 70px;
            }
            .hero-section .hero-content {
                padding: 1rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                gap: 0.8rem;
            }
            .hero-section .btn-hero-primary,
            .hero-section .btn-hero-secondary {
                width: 100%;
                text-align: center;
            }
            .sports-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .stats-grid .stat-box .number {
                font-size: 1.6rem;
            }
            .stats-grid .stat-box .icon {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 2rem;
            }
            .category-feature .cat-text h2 {
                font-size: 1.4rem;
            }
            .cta-section .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 辅助 ===== */
        .text-secondary-custom {
            color: var(--secondary);
        }
        .bg-primary-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        }
        .rounded-xl {
            border-radius: var(--radius-xl);
        }
        .shadow-hover {
            transition: var(--transition);
        }
        .shadow-hover:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #dc3545;
            --primary-dark: #b02a37;
            --primary-light: #f8d7da;
            --secondary: #ffc107;
            --secondary-dark: #e0a800;
            --accent: #0d6efd;
            --bg-body: #f8f9fa;
            --bg-dark: #1a1d23;
            --bg-card: #ffffff;
            --text-body: #212529;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: rgba(255,255,255,0.15);
            --border-card: #e9ecef;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1260px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-base);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 1rem;
            padding-top: var(--nav-height);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; margin-bottom: 0.5rem; }
        p { margin-bottom: 1rem; }
        ul, ol { padding-left: 1.25rem; }
        .container { max-width: var(--container-max); padding-left: 1.25rem; padding-right: 1.25rem; }

        /* ===== Glass Navigation ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
        }
        header.navbar-scrolled {
            background: rgba(26, 29, 35, 0.92);
            backdrop-filter: blur(20px) saturate(1.2);
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        header:not(.navbar-scrolled) {
            background: rgba(26, 29, 35, 0.50);
            backdrop-filter: blur(12px) saturate(1.1);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .navbar { padding-top: 0; padding-bottom: 0; height: var(--nav-height); }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--text-white) !important;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
        }
        .navbar-brand i { color: var(--secondary); font-size: 1.6rem; }
        .navbar-nav .nav-link {
            color: rgba(255,255,255,0.80) !important;
            font-weight: 500;
            font-size: 1rem;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: color var(--transition), background var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus { color: #fff !important; background: rgba(255,255,255,0.10); }
        .navbar-nav .nav-link.active {
            color: var(--secondary) !important;
            background: transparent;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 0.5rem 1.25rem !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }
        .nav-cta:hover { background: var(--primary-dark) !important; transform: translateY(-2px); }
        .navbar-toggler { border: none; color: #fff; font-size: 1.5rem; padding: 0; }
        .navbar-toggler:focus { box-shadow: none; outline: none; }
        .navbar-toggler i { color: #fff; }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            margin-top: calc(-1 * var(--nav-height));
            padding-top: calc(var(--nav-height) + 60px);
            padding-bottom: 60px;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.40) 60%, rgba(0,0,0,0.20) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .hero-badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 1.25rem;
            text-transform: uppercase;
        }
        .article-hero h1 {
            color: #fff;
            font-size: clamp(1.8rem, 4vw, 3.2rem);
            font-weight: 800;
            max-width: 900px;
            margin: 0 auto 1rem;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .article-hero .hero-meta {
            color: rgba(255,255,255,0.85);
            font-size: 1rem;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
        }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--secondary); }
        .article-hero .hero-meta span { display: inline-flex; align-items: center; }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: transparent;
            padding: 1.25rem 0 0.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb-wrap .breadcrumb { margin: 0; background: transparent; padding: 0; }
        .breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before { color: var(--text-light); content: '›'; }
        .breadcrumb-wrap .breadcrumb-item a { color: var(--primary); }
        .breadcrumb-wrap .breadcrumb-item.active { color: var(--text-light); }

        /* ===== Article Content ===== */
        .article-main {
            padding: 2.5rem 0 4rem;
            background: #fff;
        }
        .article-body {
            max-width: 860px;
            margin: 0 auto;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-body);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--bg-dark);
        }
        .article-body p { margin-bottom: 1.25rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.25rem; }
        .article-body img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 1rem 1.5rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: #333;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-card);
        }
        .article-tags .tag {
            background: var(--bg-body);
            color: var(--text-body);
            padding: 0.3rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: background var(--transition), color var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .not-found-box i { font-size: 3.5rem; color: var(--text-light); margin-bottom: 1rem; }
        .not-found-box h2 { font-size: 1.8rem; color: var(--bg-dark); }
        .not-found-box p { color: var(--text-light); max-width: 480px; margin: 0.5rem auto 1.5rem; }
        .not-found-box .btn-home { background: var(--primary); color: #fff; padding: 0.6rem 2rem; border-radius: var(--radius-sm); font-weight: 600; transition: background var(--transition); }
        .not-found-box .btn-home:hover { background: var(--primary-dark); }

        /* ===== Related Section ===== */
        .related-section {
            padding: 4rem 0;
            background: var(--bg-body);
        }
        .related-section .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.5rem;
            color: var(--bg-dark);
        }
        .related-section .section-sub {
            color: var(--text-light);
            margin-bottom: 2.5rem;
            font-size: 1.05rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            border: 1px solid var(--border-card);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
        .related-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .related-card .card-body { padding: 1.5rem; }
        .related-card .card-body h5 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--bg-dark); }
        .related-card .card-body p { font-size: 0.92rem; color: var(--text-light); margin-bottom: 0.75rem; }
        .related-card .card-body .card-meta { font-size: 0.82rem; color: var(--text-light); }
        .related-card .card-body .card-meta i { margin-right: 4px; }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 4rem 0;
            background: #fff;
        }
        .faq-section .section-title {
            font-size: 2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 0.5rem;
            color: var(--bg-dark);
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-light);
            margin-bottom: 2.5rem;
            font-size: 1.05rem;
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 0.75rem;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1.05rem;
            padding: 1.1rem 1.5rem;
            color: var(--text-body);
            background: #fff;
            box-shadow: none;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary-dark);
        }
        .faq-accordion .accordion-button:focus { box-shadow: none; border-color: var(--primary); }
        .faq-accordion .accordion-body {
            padding: 1rem 1.5rem 1.5rem;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 4.5rem 0;
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.20;
            z-index: 0;
        }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.75);
            max-width: 640px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-cta {
            background: var(--secondary);
            color: var(--bg-dark);
            font-weight: 700;
            padding: 0.8rem 2.5rem;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(255,193,7,0.35);
            border: none;
        }
        .cta-section .btn-cta:hover { background: var(--secondary-dark); transform: translateY(-3px); box-shadow: 0 8px 30px rgba(255,193,7,0.45); }
        .cta-section .btn-cta i { margin-right: 8px; }

        /* ===== Footer ===== */
        .site-footer {
            background: #121418;
            color: rgba(255,255,255,0.70);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-brand i { color: var(--secondary); font-size: 1.6rem; }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            max-width: 360px;
            margin-top: 0.25rem;
        }
        .site-footer .footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.5rem;
            margin-bottom: 1rem;
            justify-content: flex-end;
        }
        .site-footer .footer-nav a {
            color: rgba(255,255,255,0.65);
            font-size: 0.92rem;
            font-weight: 500;
            transition: color var(--transition);
        }
        .site-footer .footer-nav a:hover { color: var(--secondary); }
        .site-footer .footer-social {
            display: flex;
            gap: 1rem;
            justify-content: flex-end;
        }
        .site-footer .footer-social a {
            color: rgba(255,255,255,0.45);
            font-size: 1.25rem;
            transition: color var(--transition), transform var(--transition);
        }
        .site-footer .footer-social a:hover { color: var(--secondary); transform: translateY(-3px); }
        .site-footer .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.25rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.40);
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.50); }
        .site-footer .footer-bottom a:hover { color: var(--secondary); }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            :root { --nav-height: 64px; }
            .navbar-collapse {
                background: rgba(26,29,35,0.98);
                border-radius: var(--radius-md);
                padding: 1rem;
                margin-top: 0.5rem;
                border: 1px solid rgba(255,255,255,0.06);
            }
            .navbar-nav .nav-link { padding: 0.6rem 1rem !important; }
            .navbar-nav .nav-link.active::after { display: none; }
            .site-footer .footer-nav,
            .site-footer .footer-social { justify-content: flex-start; }
            .article-hero { min-height: 320px; padding-top: calc(var(--nav-height) + 40px); padding-bottom: 40px; }
        }
        @media (max-width: 767.98px) {
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .hero-meta { font-size: 0.9rem; gap: 0.5rem 1rem; }
            .article-body { font-size: 0.98rem; }
            .related-section .section-title { font-size: 1.5rem; }
            .faq-section .section-title { font-size: 1.5rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 1rem; }
            .site-footer .footer-nav { gap: 0.5rem 1rem; }
        }
        @media (max-width: 575.98px) {
            .article-hero { min-height: 260px; padding-top: calc(var(--nav-height) + 30px); padding-bottom: 30px; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-hero .hero-meta { flex-direction: column; gap: 0.3rem; }
            .article-main { padding: 1.5rem 0 2.5rem; }
            .related-card .card-img { height: 160px; }
            .faq-accordion .accordion-button { font-size: 0.95rem; padding: 0.9rem 1.1rem; }
            .cta-section { padding: 3rem 0; }
            .site-footer { padding: 2rem 0 1rem; }
        }
        @media (min-width: 992px) {
            .navbar-nav .nav-link { padding: 0.5rem 1.2rem !important; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2b4d7a;
            --accent: #f4a261;
            --accent-light: #f9c78a;
            --bg-dark: #0f1a2e;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #333333;
            --text-light: #666666;
            --text-muted: #999999;
            --border-color: #e8e8e8;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --container-pad: 24px;
        }

        /* ===== Reset & 基础 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            overflow-x: hidden;
            padding-top: 0;
        }

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

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

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

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

        ul,
        ol {
            padding-left: 1.25rem;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        /* ===== 导航 ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            transition: var(--transition);
        }

        .navbar-transparent {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            padding: 0.6rem 0;
            transition: var(--transition);
        }

        header.scrolled .navbar-transparent {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px) saturate(200%);
            -webkit-backdrop-filter: blur(20px) saturate(200%);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: #fff !important;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }
        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--primary-light);
        }
        header.scrolled .navbar-brand {
            color: var(--text-dark) !important;
        }
        header.scrolled .navbar-brand i {
            color: var(--primary);
        }

        .navbar-nav .nav-link {
            color: rgba(255, 255, 255, 0.85) !important;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.12);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: rgba(230, 57, 70, 0.7);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary-light);
            border-radius: 2px;
        }

        header.scrolled .navbar-nav .nav-link {
            color: var(--text-dark) !important;
        }
        header.scrolled .navbar-nav .nav-link:hover,
        header.scrolled .navbar-nav .nav-link:focus {
            color: var(--primary) !important;
            background: rgba(230, 57, 70, 0.06);
        }
        header.scrolled .navbar-nav .nav-link.active {
            color: #fff !important;
            background: var(--primary) !important;
        }
        header.scrolled .navbar-nav .nav-link.active::after {
            background: #fff;
        }

        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 0.5rem 1.2rem !important;
            border-radius: 50px !important;
            font-weight: 700 !important;
            font-size: 0.9rem !important;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            border: 2px solid transparent;
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            color: #fff !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
        }
        header.scrolled .nav-cta {
            border-color: var(--primary);
        }

        .navbar-toggler {
            border: none;
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.4rem;
            padding: 0.25rem 0.5rem;
        }
        header.scrolled .navbar-toggler {
            color: var(--text-dark);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
            overflow: hidden;
            padding: 120px 0 80px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.82) 0%, rgba(15, 26, 46, 0.45) 50%, rgba(230, 57, 70, 0.25) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light), transparent);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 820px;
            padding: 0 20px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.2);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
            padding: 0.4rem 1.4rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 1.5rem;
            text-transform: uppercase;
        }
        .hero-badge i {
            margin-right: 6px;
            color: var(--primary-light);
        }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 1.2rem;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .hero-title .highlight {
            color: var(--primary-light);
            position: relative;
        }
        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            width: 100%;
            height: 6px;
            background: rgba(230, 57, 70, 0.4);
            border-radius: 3px;
        }
        .hero-sub {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 2.2rem;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            align-items: center;
        }
        .hero-actions .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.35);
        }
        .hero-actions .btn-primary-custom:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.45);
        }
        .hero-actions .btn-outline-custom {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.25);
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }
        .hero-actions .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 90px 0;
        }
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
            line-height: 1.2;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 620px;
            margin: 0 auto 2.8rem;
            line-height: 1.7;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0.8rem auto 1.2rem;
        }

        /* ===== 卖点卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2.4rem 1.8rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230, 57, 70, 0.15);
        }
        .feature-icon {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.08), rgba(29, 53, 87, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            font-size: 1.8rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h5 {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 赛事卡片 ===== */
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(230, 57, 70, 0.2);
        }
        .event-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-dark);
        }
        .event-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .event-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .event-card .card-img-wrap .event-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .event-card .card-img-wrap .event-date {
            position: absolute;
            bottom: 14px;
            left: 14px;
            background: rgba(0, 0, 0, 0.65);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: 0.8rem;
            padding: 0.25rem 0.9rem;
            border-radius: 50px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .event-card .card-body {
            padding: 1.6rem 1.4rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-body h5 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }
        .event-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 1rem;
        }
        .event-card .card-body .event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .event-card .card-body .event-meta span {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .event-card .card-body .event-meta i {
            color: var(--primary);
        }
        .event-card .card-body .btn-event {
            align-self: flex-start;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            padding: 0.4rem 1.4rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .event-card .card-body .btn-event:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }

        /* ===== 流程步骤 ===== */
        .step-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .step-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 26, 46, 0.85);
            z-index: 1;
        }
        .step-section .container {
            position: relative;
            z-index: 2;
        }
        .step-section .section-title {
            color: #fff;
        }
        .step-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .step-section .section-divider {
            background: var(--accent);
        }

        .step-card {
            text-align: center;
            padding: 1.8rem 1.2rem;
            position: relative;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.2);
            border: 2px solid var(--primary);
            color: var(--primary-light);
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
            transition: var(--transition);
        }
        .step-card:hover .step-number {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }
        .step-card h5 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .step-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 280px;
            margin: 0 auto;
        }
        .step-arrow {
            display: none;
        }
        @media (min-width: 768px) {
            .step-arrow {
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 1.8rem;
                color: rgba(255, 255, 255, 0.2);
                position: absolute;
                right: -20px;
                top: 50%;
                transform: translateY(-50%);
            }
        }

        /* ===== 场景卡片 ===== */
        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.6rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .scene-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--primary);
            transition: height 0.4s ease;
            border-radius: 0 2px 2px 0;
        }
        .scene-card:hover::before {
            height: 100%;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .scene-card .scene-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
        }
        .scene-card h5 {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 0.5rem;
        }
        .scene-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 统计 / 社会认同 ===== */
        .stats-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem 0.5rem;
        }
        .stat-number {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 500;
            margin-top: 0.2rem;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }
        .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 0.8rem;
            background: var(--bg-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: var(--bg-card);
            padding: 1.2rem 1.4rem;
            border: none;
            box-shadow: none !important;
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.03);
        }
        .accordion-button::after {
            background-size: 1rem;
            transition: var(--transition);
        }
        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .accordion-body {
            padding: 0.2rem 1.4rem 1.2rem;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            padding: 100px 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 0%, rgba(230, 57, 70, 0.3) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 1rem 3rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 14px 44px rgba(230, 57, 70, 0.5);
        }
        .cta-section .btn-cta-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            padding: 0.95rem 2.6rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
            margin-left: 1rem;
        }
        .cta-section .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3rem 0 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
        }
        .footer-brand i {
            color: var(--primary-light);
        }
        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
            line-height: 1.7;
        }
        .footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 1.6rem;
            margin-bottom: 1.2rem;
            justify-content: flex-end;
        }
        .footer-nav a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .footer-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-light);
            transition: width 0.3s ease;
        }
        .footer-nav a:hover {
            color: #fff;
        }
        .footer-nav a:hover::after {
            width: 100%;
        }
        .footer-social {
            display: flex;
            gap: 0.8rem;
            justify-content: flex-end;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-bottom {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(20px);
                border-radius: var(--radius-md);
                padding: 1rem 1.2rem;
                margin-top: 0.6rem;
                box-shadow: var(--shadow-md);
            }
            .navbar-nav .nav-link {
                color: var(--text-dark) !important;
                padding: 0.6rem 1rem;
                border-radius: var(--radius-sm);
            }
            .navbar-nav .nav-link:hover {
                background: rgba(230, 57, 70, 0.06);
                color: var(--primary) !important;
            }
            .navbar-nav .nav-link.active {
                background: var(--primary) !important;
                color: #fff !important;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            header.scrolled .navbar-nav .nav-link {
                color: var(--text-dark) !important;
            }
            .nav-cta {
                margin-top: 0.5rem;
                justify-content: center;
            }
            .footer-nav {
                justify-content: flex-start;
                margin-top: 1rem;
            }
            .footer-social {
                justify-content: flex-start;
            }
            .hero-section {
                min-height: 65vh;
                background-attachment: scroll;
                padding: 100px 0 60px;
            }
            .section-padding {
                padding: 60px 0;
            }
            .cta-section {
                padding: 70px 0;
                background-attachment: scroll;
            }
            .step-section {
                background-attachment: scroll;
            }
            .cta-section .btn-cta-outline {
                margin-left: 0;
                margin-top: 0.8rem;
            }
        }

        @media (max-width: 767px) {
            .hero-title {
                font-size: clamp(1.8rem, 8vw, 2.6rem);
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                width: 100%;
                justify-content: center;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .event-card .card-body {
                padding: 1.2rem 1rem;
            }
            .feature-card {
                padding: 1.8rem 1.2rem;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta,
            .cta-section .btn-cta-outline {
                width: 100%;
                justify-content: center;
            }
            .footer-nav {
                flex-direction: column;
                gap: 0.4rem;
            }
            .footer-nav a {
                font-size: 0.85rem;
            }
            .footer-social {
                margin-top: 0.8rem;
            }
            .navbar-brand {
                font-size: 1.25rem;
            }
            .step-card {
                padding: 1.2rem 0.5rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --container-pad: 16px;
            }
            .hero-section {
                min-height: 58vh;
                padding: 90px 0 50px;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 0.3rem 1rem;
            }
            .section-padding {
                padding: 45px 0;
            }
            .event-card .card-img-wrap {
                aspect-ratio: 16 / 10;
            }
            .accordion-button {
                font-size: 0.92rem;
                padding: 1rem 1rem;
            }
            .accordion-body {
                font-size: 0.88rem;
                padding: 0.2rem 1rem 1rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-primary-custom {
            color: var(--primary);
        }
        .bg-primary-soft {
            background: rgba(230, 57, 70, 0.04);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-sm);
        }
        .mt-6 {
            margin-top: 3.5rem;
        }
        .mb-6 {
            margin-bottom: 3.5rem;
        }
        .gap-3 {
            gap: 1rem;
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #aaa;
        }