/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b2d;
            --primary-light: #1a2d4a;
            --accent: #f76b1c;
            --accent-hover: #e05d0e;
            --accent-light: #fff0e6;
            --gold: #ffd700;
            --gold-light: #fff8d6;
            --bg-body: #f4f6f9;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a1520;
            --text-dark: #1a1a2e;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #a0aec0;
            --text-white: #f7fafc;
            --border: #e2e8f0;
            --border-light: #eef2f6;
            --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 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 48px rgba(0,0,0,0.15);
            --shadow-glow: 0 0 30px rgba(247,107,28,0.20);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-body);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; line-height: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-dark); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        p { margin-bottom: 1rem; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .container-wide { max-width: 1360px; margin: 0 auto; padding: 0 24px; width: 100%; }
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 56px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 { margin-bottom: 12px; position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p { color: var(--text-muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-5 { margin-bottom: 3rem; }
        .mt-1 { margin-top: 0.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .mt-4 { margin-top: 2rem; }
        .text-center { text-align: center; }
        .text-muted { color: var(--text-muted); }
        .text-accent { color: var(--accent); }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-primary:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.4);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-outline:focus-visible { outline: 3px solid rgba(255,255,255,0.6); outline-offset: 3px; }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-dark:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.875rem; }
        .btn-icon { width: 48px; height: 48px; padding: 0; border-radius: 50%; }

        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--accent-light);
            color: var(--accent);
            border: 1px solid rgba(247,107,28,0.15);
        }
        .badge-gold {
            background: var(--gold-light);
            color: #b8860b;
            border-color: rgba(255,215,0,0.3);
        }
        .badge-primary {
            background: rgba(15,27,45,0.08);
            color: var(--primary);
            border-color: rgba(15,27,45,0.12);
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-body);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag:hover { background: var(--accent-light); color: var(--accent); border-color: var(--accent); }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 32px);
            max-width: 1200px;
            background: rgba(15,27,45,0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: 60px;
            border: 1px solid rgba(255,255,255,0.10);
            box-shadow: 0 8px 32px rgba(0,0,0,0.25);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(15,27,45,0.96);
            box-shadow: 0 8px 40px rgba(0,0,0,0.35);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            height: var(--nav-height);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            text-decoration: none;
        }
        .logo:hover { color: var(--accent); }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--gold));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-menu { display: flex; align-items: center; gap: 4px; }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.75);
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-menu a:hover { color: #fff; background: rgba(255,255,255,0.10); }
        .nav-menu a.active {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 4px 16px rgba(247,107,28,0.30);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-cta .btn {
            padding: 8px 22px;
            font-size: 0.9rem;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #fff;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,27,45,0.88) 0%, rgba(15,27,45,0.60) 50%, rgba(247,107,28,0.15) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.12);
            color: rgba(255,255,255,0.8);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
        }
        .hero-badge i { color: var(--gold); }
        .hero h1 {
            color: #fff;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 span { background: linear-gradient(135deg, var(--accent), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            color: rgba(255,255,255,0.7);
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            justify-content: center;
            margin-top: 48px;
            padding-top: 36px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .hero-stat .num span { color: var(--gold); }
        .hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

        /* ===== 板块通用 ===== */
        .section-light { background: var(--bg-white); }
        .section-gray { background: var(--bg-body); }
        .section-dark {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
        }
        .section-dark .section-title h2 { color: #fff; }
        .section-dark .section-title p { color: rgba(255,255,255,0.6); }
        .section-divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
            margin: 0;
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(247,107,28,0.12);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-img { transform: scale(1.03); }
        .card-body { padding: 20px 24px 24px; }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .card-title a { color: inherit; }
        .card-title a:hover { color: var(--accent); }
        .card-text { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
        }
        .card-meta i { margin-right: 4px; }
        .card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

        /* ===== 特色卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: rgba(247,107,28,0.15);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #ff8a3c);
            box-shadow: 0 8px 24px rgba(247,107,28,0.20);
        }
        .feature-icon.alt1 { background: linear-gradient(135deg, var(--primary), #2d4a7a); }
        .feature-icon.alt2 { background: linear-gradient(135deg, #e74c3c, #ff6b6b); }
        .feature-icon.alt3 { background: linear-gradient(135deg, var(--gold), #f0a500); }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 8px; }
        .feature-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 0; }

        /* ===== 赛事分类卡片 ===== */
        .sport-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 4 / 5;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }
        .sport-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .sport-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .sport-card:hover img { transform: scale(1.06); }
        .sport-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(15,27,45,0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 24px;
        }
        .sport-card-overlay h3 { color: #fff; font-size: 1.2rem; font-weight: 700; margin-bottom: 4px; }
        .sport-card-overlay p { color: rgba(255,255,255,0.6); font-size: 0.85rem; margin-bottom: 0; }
        .sport-card .badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(247,107,28,0.9);
            color: #fff;
            border: none;
            backdrop-filter: blur(4px);
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            position: relative;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .step-item:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(247,107,28,0.25);
        }
        .step-item .step-icon { font-size: 2rem; color: var(--accent); margin-bottom: 12px; margin-top: 8px; }
        .step-item h4 { font-size: 1.1rem; margin-bottom: 6px; }
        .step-item p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-card {
            padding: 32px 16px;
            background: rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.06);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .stat-card .stat-num { font-size: 2.8rem; font-weight: 800; color: #fff; letter-spacing: -1px; }
        .stat-card .stat-num span { color: var(--gold); }
        .stat-card .stat-label { color: rgba(255,255,255,0.5); font-size: 0.9rem; margin-top: 8px; }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .faq-item:hover { border-color: rgba(247,107,28,0.15); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            border: none;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i { transition: var(--transition); color: var(--text-muted); font-size: 0.9rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); color: var(--accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1a2d4a 50%, rgba(247,107,28,0.12) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 24px;
        }
        .cta-content h2 { color: #fff; margin-bottom: 16px; }
        .cta-content p { color: rgba(255,255,255,0.6); max-width: 560px; margin: 0 auto 32px; font-size: 1.1rem; }
        .cta-content .btn { box-shadow: var(--shadow-glow); }

        /* ===== 最新资讯列表 ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-item:last-child { border-bottom: none; }
        .news-item:hover { padding-left: 8px; }
        .news-item .news-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--accent-light);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .news-item .news-info { flex: 1; min-width: 0; }
        .news-item .news-title {
            font-weight: 600;
            color: var(--text-dark);
            font-size: 1rem;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-title a { color: inherit; }
        .news-item .news-title a:hover { color: var(--accent); }
        .news-item .news-meta { font-size: 0.8rem; color: var(--text-light); display: flex; gap: 12px; flex-wrap: wrap; }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-muted);
            background: var(--bg-body);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.6);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.92rem; line-height: 1.8; max-width: 360px; }
        .footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer a { color: rgba(255,255,255,0.55); font-size: 0.9rem; display: block; padding: 4px 0; }
        .footer a:hover { color: var(--accent); }
        .footer-socials { display: flex; gap: 12px; margin-top: 16px; }
        .footer-socials a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 1rem;
            border: 1px solid rgba(255,255,255,0.06);
            transition: var(--transition);
            padding: 0;
        }
        .footer-socials a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.45); display: inline; padding: 0; }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
            .hero p { font-size: 1rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            :root { --nav-height: 64px; }
            .header { top: 12px; width: calc(100% - 24px); border-radius: 40px; }
            .nav-toggle { display: flex; }
            .nav-menu {
                position: absolute;
                top: calc(var(--nav-height) + 8px);
                left: 12px;
                right: 12px;
                background: rgba(15,27,45,0.98);
                backdrop-filter: blur(20px);
                border-radius: 20px;
                flex-direction: column;
                padding: 12px;
                gap: 2px;
                border: 1px solid rgba(255,255,255,0.08);
                box-shadow: 0 20px 48px rgba(0,0,0,0.5);
                display: none;
                opacity: 0;
                transform: translateY(-12px);
                transition: var(--transition);
            }
            .nav-menu.open { display: flex; opacity: 1; transform: translateY(0); }
            .nav-menu a { padding: 12px 16px; width: 100%; justify-content: center; }
            .nav-cta .btn { padding: 6px 16px; font-size: 0.82rem; }
            .nav-cta .btn span { display: none; }
            .section-padding { padding: 56px 0; }
            .section-padding-sm { padding: 40px 0; }
            .section-title { margin-bottom: 32px; }
            .hero-stats { gap: 20px 32px; }
            .hero-stat .num { font-size: 1.6rem; }
            .steps-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .feature-card { padding: 24px 20px; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-content { padding: 56px 24px; }
            .sport-card { aspect-ratio: 3 / 4; }
        }

        @media (max-width: 520px) {
            .header { top: 8px; width: calc(100% - 16px); border-radius: 32px; }
            .header-inner { padding: 0 16px; }
            .logo { font-size: 1.1rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 0.9rem; }
            .hero { min-height: 90vh; }
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.92rem; }
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-card .stat-num { font-size: 2rem; }
            .steps-grid { grid-template-columns: 1fr; gap: 20px; }
            .step-item { padding: 24px 16px; }
            .section-title h2 { font-size: 1.4rem; }
            .card-body { padding: 16px 18px 20px; }
            .news-item { flex-direction: column; gap: 8px; }
            .news-item .news-num { display: none; }
            .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-item.active .faq-answer { padding: 0 18px 16px; }
            .footer { padding: 40px 0 0; }
        }

        /* ===== 工具类 ===== */
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        @media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 768px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 16px; }
        .gap-4 { gap: 24px; }
        .w-full { width: 100%; }
        .rounded-full { border-radius: 9999px; }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-in { animation: fadeInUp 0.7s ease forwards; }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }
        .delay-5 { animation-delay: 0.5s; }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-light: #e9c46a;
            --bg-dark: #0b1a2e;
            --bg-darker: #071220;
            --bg-light: #f8f9fa;
            --bg-card: #ffffff;
            --text-light: #f1faee;
            --text-dark: #1d3557;
            --text-muted: #8d99ae;
            --text-body: #2b2d42;
            --border-color: #dee2e6;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.18);
            --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        /* ===== Header / Navigation (悬浮胶囊风格) ===== */
        .header {
            position: fixed;
            top: 20px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 40px);
            max-width: 1160px;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 60px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 24px;
            min-height: 64px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
            transition: opacity var(--transition);
        }
        .logo:hover {
            opacity: 0.85;
            color: var(--secondary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-menu a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: all var(--transition);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu a i {
            font-size: 0.9rem;
            opacity: 0.7;
        }
        .nav-menu a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .nav-menu a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .nav-menu a.active i {
            opacity: 1;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-dark);
            border: 2px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.04);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.85rem;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: all var(--transition);
        }

        /* ===== Hero / Banner ===== */
        .category-hero {
            position: relative;
            padding: 160px 0 80px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 100%);
            overflow: hidden;
            margin-top: -20px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .category-hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-tags .tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 40px;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .hero-tags .tag:hover {
            background: var(--primary);
            border-color: var(--primary);
        }

        /* ===== Category Nav Pills ===== */
        .category-pills {
            padding: 40px 0 24px 0;
            background: #fff;
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 90px;
            z-index: 1020;
        }
        .category-pills .pills-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 8px;
            justify-content: center;
        }
        .category-pills .pill {
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .category-pills .pill i {
            opacity: 0.7;
        }
        .category-pills .pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.04);
        }
        .category-pills .pill.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
        }

        /* ===== Sections Common ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-light);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-bottom: 40px;
        }
        .section-dark .section-title {
            color: #fff;
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.6);
        }

        .text-center {
            text-align: center;
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid rgba(0, 0, 0, 0.04);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .card-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        /* ===== Featured / 大卡片 ===== */
        .featured-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            margin-bottom: 40px;
            transition: all var(--transition);
        }
        .featured-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .featured-card .fc-img {
            height: 100%;
            min-height: 360px;
            object-fit: cover;
            width: 100%;
            border-radius: 0;
        }
        .featured-card .fc-body {
            padding: 48px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .fc-body h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 16px;
        }
        .featured-card .fc-body p {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .featured-card .fc-meta {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .featured-card .fc-meta span {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .featured-card .fc-meta i {
            color: var(--primary);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 32px 20px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item .num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            margin-top: 6px;
        }
        .stat-item i {
            font-size: 2rem;
            color: var(--accent-light);
            margin-bottom: 10px;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .faq-q {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-q:hover {
            background: rgba(230, 57, 70, 0.02);
        }
        .faq-q i {
            color: var(--primary);
            font-size: 1.2rem;
            transition: transform var(--transition);
        }
        .faq-q[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-a {
            padding: 0 24px 20px 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }
        .faq-a.show {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-dark) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 32px auto;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-darker);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }
        .footer .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-grid h4 {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-grid a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-grid a:hover {
            color: var(--accent);
        }
        .footer-brand p {
            margin-top: 8px;
            font-size: 0.9rem;
            max-width: 320px;
        }
        .footer-socials {
            display: flex;
            gap: 16px;
            margin-top: 18px;
        }
        .footer-socials a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.2rem;
            transition: all var(--transition);
            padding: 0;
        }
        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .fc-img {
                min-height: 260px;
                max-height: 320px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .category-hero h1 {
                font-size: 2.4rem;
            }
        }

        @media (max-width: 768px) {
            .header {
                top: 12px;
                width: calc(100% - 24px);
                border-radius: 40px;
            }
            .header-inner {
                padding: 6px 16px;
                min-height: 56px;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 10px);
                left: 12px;
                right: 12px;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(18px);
                border-radius: 24px;
                flex-direction: column;
                padding: 16px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
                border: 1px solid rgba(0, 0, 0, 0.04);
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 12px;
            }
            .nav-cta .btn span {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .category-pills {
                top: 72px;
                padding: 20px 0 16px;
            }
            .category-hero {
                padding: 130px 0 50px 0;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .category-hero p {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .featured-card .fc-body {
                padding: 28px 24px;
            }
            .featured-card .fc-body h2 {
                font-size: 1.4rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .num {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .hero-tags .tag {
                font-size: 0.75rem;
                padding: 4px 12px;
            }
            .category-pills .pill {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 1.6rem;
            }
            .card-body {
                padding: 18px;
            }
            .featured-card .fc-body {
                padding: 20px 16px;
            }
            .faq-q {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-a {
                padding: 0 18px 16px 18px;
            }
        }

        @media (min-width: 769px) {
            .nav-menu {
                display: flex !important;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            padding: 12px 0 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }
        .breadcrumb-nav a:hover {
            color: #fff;
        }
        .breadcrumb-nav span {
            color: var(--accent);
        }

        /* ===== Skeleton / Loading ===== */
        .skeleton {
            background: linear-gradient(90deg, #e9ecef 25%, #f8f9fa 50%, #e9ecef 75%);
            background-size: 200% 100%;
            animation: skeleton 1.5s infinite;
            border-radius: var(--radius-sm);
        }
        @keyframes skeleton {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

        /* ===== Utility ===== */
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e9ecef;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.12);
            --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --max-width: 1200px;
            --header-h: 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--header-h);
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== Header / 导航（悬浮胶囊） ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: var(--shadow-nav);
            transition: var(--transition);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
        }
        .logo:hover .logo-icon {
            transform: rotate(-8deg) scale(1.05);
        }
        .logo:hover {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(26, 26, 46, 0.04);
            padding: 4px;
            border-radius: 40px;
            backdrop-filter: blur(4px);
        }
        .nav-menu a {
            padding: 8px 20px;
            border-radius: 32px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .nav-menu a i {
            font-size: 15px;
            opacity: 0.7;
        }
        .nav-menu a:hover {
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
        }
        .nav-menu a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .nav-menu a.active i {
            opacity: 1;
        }
        .nav-menu a.active:hover {
            background: var(--primary-dark);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.4);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 7px 18px;
            font-size: 14px;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--border);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.04);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.04);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .nav-menu {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                border-radius: 0 0 20px 20px;
                box-shadow: 0 24px 48px rgba(0, 0, 0, 0.15);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                gap: 4px;
                border-top: 1px solid var(--border);
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-menu a {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 16px;
                border-radius: 12px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta .btn-sm {
                display: none;
            }
            .nav-cta .nav-toggle {
                display: flex;
            }
            .header-inner {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .logo {
                font-size: 20px;
            }
            .logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .nav-menu a {
                font-size: 15px;
                padding: 10px 16px;
            }
        }

        /* ===== Banner 内页横幅 ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--secondary) 0%, #16213e 100%);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(26, 26, 46, 0.3), rgba(26, 26, 46, 0.8));
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }
        .page-banner .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb i {
            font-size: 12px;
            opacity: 0.6;
        }
        .page-banner .meta-info {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-top: 16px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            flex-wrap: wrap;
        }
        .page-banner .meta-info i {
            margin-right: 6px;
        }
        .page-banner .meta-info .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(230, 57, 70, 0.25);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 44px;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .meta-info {
                gap: 12px;
                font-size: 13px;
            }
        }
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 22px;
            }
            .page-banner .meta-info {
                flex-direction: column;
                gap: 6px;
            }
        }

        /* ===== 文章主体 ===== */
        .article-section {
            padding: 60px 0 80px;
        }
        .article-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            overflow: hidden;
        }
        .article-main .article-body {
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text);
        }
        .article-main .article-body p {
            margin-bottom: 20px;
        }
        .article-main .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--secondary);
            letter-spacing: -0.3px;
        }
        .article-main .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--secondary);
        }
        .article-main .article-body ul,
        .article-main .article-body ol {
            margin: 0 0 20px 24px;
            list-style: disc;
        }
        .article-main .article-body li {
            margin-bottom: 8px;
        }
        .article-main .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-main .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(230, 57, 70, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .article-main .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-main .article-body a:hover {
            color: var(--primary-dark);
        }

        .article-divider {
            height: 1px;
            background: var(--border);
            margin: 32px 0;
        }

        .article-nav-links {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 40px;
            background: var(--bg);
            color: var(--text);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .article-nav-links a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
        }
        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i {
            color: var(--primary);
        }
        .sidebar-card .side-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .sidebar-card .side-list a {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .sidebar-card .side-list a:last-child {
            border-bottom: none;
        }
        .sidebar-card .side-list a:hover {
            padding-left: 6px;
            color: var(--primary);
        }
        .sidebar-card .side-list .side-thumb {
            width: 60px;
            height: 60px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg);
        }
        .sidebar-card .side-list .side-info {
            flex: 1;
            min-width: 0;
        }
        .sidebar-card .side-list .side-info .side-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            color: var(--text);
        }
        .sidebar-card .side-list .side-info .side-date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-card .side-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-card .side-tags a {
            padding: 6px 16px;
            border-radius: 20px;
            background: var(--bg);
            color: var(--text);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .sidebar-card .side-tags a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar-card .cta-mini {
            text-align: center;
            padding: 16px 0 4px;
        }

        @media (max-width: 960px) {
            .article-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 640px) {
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .article-main {
                padding: 24px 20px;
            }
            .article-main .article-body {
                font-size: 15.5px;
            }
            .article-main .article-body h2 {
                font-size: 22px;
            }
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .related-section .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 32px;
            text-align: center;
            letter-spacing: -0.3px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--bg);
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 20px 22px 24px;
        }
        .related-card .card-body .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 16px;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .related-card .card-body h4 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .related-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-light);
        }
        .related-card .card-body .card-meta i {
            margin-right: 4px;
        }

        @media (max-width: 820px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-title {
                font-size: 22px;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
        }
        .footer .container {
            padding-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            margin-bottom: 14px;
        }
        .footer-brand .logo .logo-icon {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 340px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.8);
            font-size: 18px;
            transition: var(--transition);
        }
        .footer-socials a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 8px;
        }

        @media (max-width: 820px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        /* ===== 文章缺失状态 ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i {
            font-size: 64px;
            color: var(--text-light);
            margin-bottom: 20px;
            opacity: 0.4;
        }
        .not-found-box h2 {
            font-size: 28px;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
            font-size: 16px;
        }
        .not-found-box .btn {
            margin-top: 8px;
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-light);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary);
        }

        /* ===== 选中样式 ===== */
        ::selection {
            background: rgba(230, 57, 70, 0.2);
            color: var(--text);
        }