/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b2d;
            --primary-light: #1a2d4a;
            --secondary: #c9a84c;
            --secondary-light: #e8cc7a;
            --secondary-dark: #a8892e;
            --accent: #e67e22;
            --bg-body: #f5f3ef;
            --bg-card: #ffffff;
            --bg-dark: #0a1424;
            --text-primary: #111827;
            --text-secondary: #4b5563;
            --text-light: #9ca3af;
            --text-white: #f9fafb;
            --border-color: #e5e7eb;
            --border-light: #f0efed;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 14px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
            --shadow-glow: 0 0 30px rgba(201, 168, 76, 0.15);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --tab-height: 64px;
        }

        /* ===== 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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
            padding-bottom: var(--tab-height);
        }
        @media (min-width: 769px) { body { padding-bottom: 0; } }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
        p { color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 520px) { .container { padding: 0 16px; } }
        .section { padding: 80px 0; }
        @media (max-width: 768px) { .section { padding: 56px 0; } }
        @media (max-width: 520px) { .section { padding: 40px 0; } }
        .section-title {
            text-align: center;
            margin-bottom: 16px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            text-align: center;
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }
        @media (max-width: 520px) { .section-subtitle { margin-bottom: 32px; } }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            text-transform: none;
            background: var(--secondary);
            color: var(--primary);
            border: none;
        }
        .badge-sm { padding: 2px 10px; font-size: 0.7rem; }
        .badge-outline { background: transparent; border: 1px solid var(--secondary); color: var(--secondary); }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }
        .btn-primary:hover { background: var(--secondary-light); border-color: var(--secondary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255,255,255,0.35);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.08); border-color: var(--secondary); color: var(--secondary); transform: translateY(-2px); }
        .btn-outline:active { transform: translateY(0); }
        .btn-dark {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }
        .btn-lg { padding: 16px 44px; font-size: 1.1rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn i { font-size: 0.9em; }
        .btn:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

        /* ===== Header / Nav (Desktop) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 27, 45, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(201, 168, 76, 0.1);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }
        .site-logo i { color: var(--secondary); font-size: 1.5rem; }
        .site-logo span { background: linear-gradient(135deg, #f0e6c8, var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
            transition: var(--transition);
        }
        .nav-list a i { font-size: 0.9rem; }
        .nav-list a:hover { color: var(--text-white); background: rgba(255,255,255,0.06); }
        .nav-list a.active { color: var(--secondary); background: rgba(201, 168, 76, 0.12); }
        .nav-list a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        .nav-cta { display: none; }
        @media (min-width: 769px) { .nav-cta { display: inline-flex; margin-left: 12px; } }

        /* ===== Mobile Bottom Tab ===== */
        .bottom-tab {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1001;
            height: var(--tab-height);
            background: rgba(15, 27, 45, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(201, 168, 76, 0.08);
            display: flex;
            align-items: center;
            justify-content: space-around;
            padding: 0 8px;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
        }
        @media (min-width: 769px) { .bottom-tab { display: none; } }
        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 14px;
            border-radius: 12px;
            color: rgba(255,255,255,0.5);
            font-size: 0.6rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .tab-item i { font-size: 1.25rem; transition: var(--transition); }
        .tab-item span { font-size: 0.6rem; letter-spacing: 0.02em; }
        .tab-item:hover { color: rgba(255,255,255,0.8); }
        .tab-item.active { color: var(--secondary); }
        .tab-item.active::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 0 0 4px 4px;
        }
        .tab-item:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 8px; }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.5;
            transform: scale(1.02);
            transition: transform 8s ease;
        }
        .hero:hover .hero-bg { transform: scale(1.0); }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,20,36,0.88) 0%, rgba(15,27,45,0.72) 50%, rgba(10,20,36,0.94) 100%);
        }
        .hero .container { position: relative; z-index: 2; }
        .hero-content { max-width: 720px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(201, 168, 76, 0.12);
            border: 1px solid rgba(201, 168, 76, 0.2);
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.8rem; }
        .hero h1 {
            color: var(--text-white);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero h1 .highlight { background: linear-gradient(135deg, var(--secondary), #f0d68a); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.7);
            max-width: 580px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 52px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .hero-stat { text-align: left; }
        .hero-stat .num { font-size: 2rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.01em; }
        .hero-stat .num span { color: var(--secondary); }
        .hero-stat .label { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-top: 4px; }
        @media (max-width: 768px) {
            .hero { min-height: 70vh; }
            .hero h1 { font-size: clamp(1.8rem, 7vw, 2.6rem); }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; margin-top: 36px; padding-top: 24px; }
            .hero-stat .num { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .hero { min-height: 65vh; }
            .hero-actions { flex-direction: column; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { gap: 16px; }
            .hero-stat { flex: 1; min-width: 80px; }
        }

        /* ===== Features / 平台优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(201,168,76,0.2); }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(201,168,76,0.1), rgba(201,168,76,0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon { background: linear-gradient(135deg, rgba(201,168,76,0.18), rgba(201,168,76,0.08)); transform: scale(1.05); }
        .feature-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
        .feature-card p { font-size: 0.92rem; line-height: 1.6; }
        @media (max-width: 768px) { .features-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .features-grid { grid-template-columns: 1fr; gap: 16px; } }

        /* ===== Category Cards / 赛事分类 ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .cat-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            min-height: 280px;
            display: flex;
            flex-direction: column;
        }
        .cat-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .cat-card-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .cat-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15,27,45,0.5) 0%, transparent 60%);
        }
        .cat-card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .cat-card-body h3 { font-size: 1.15rem; margin-bottom: 6px; }
        .cat-card-body p { font-size: 0.88rem; color: var(--text-secondary); flex: 1; margin-bottom: 16px; }
        .cat-card-body .btn { align-self: flex-start; }
        .cat-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            z-index: 2;
            background: rgba(15,27,45,0.7);
            backdrop-filter: blur(6px);
            color: var(--text-white);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(255,255,255,0.1);
        }
        @media (max-width: 768px) { .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .cat-grid { grid-template-columns: 1fr; gap: 16px; } }

        /* ===== News / CMS List ===== */
        .news-list { display: flex; flex-direction: column; gap: 16px; }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: center;
        }
        .news-item:hover { box-shadow: var(--shadow-md); transform: translateX(4px); border-color: rgba(201,168,76,0.15); }
        .news-item .badge { flex-shrink: 0; }
        .news-item-content { flex: 1; min-width: 0; }
        .news-item-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; transition: var(--transition); }
        .news-item:hover .news-item-content h4 { color: var(--secondary-dark); }
        .news-item-content p { font-size: 0.88rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-item-meta { display: flex; align-items: center; gap: 16px; margin-top: 6px; font-size: 0.78rem; color: var(--text-light); }
        .news-item-meta i { margin-right: 4px; }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-light);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .news-empty i { font-size: 2rem; margin-bottom: 12px; display: block; color: var(--border-color); }
        @media (max-width: 520px) {
            .news-item { flex-direction: column; align-items: flex-start; gap: 12px; padding: 16px; }
            .news-item .badge { align-self: flex-start; }
        }

        /* ===== Stats / 数据 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }
        .stat-card {
            text-align: center;
            padding: 32px 16px;
            background: rgba(255,255,255,0.02);
            border: 1px solid rgba(255,255,255,0.04);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-card:hover { background: rgba(255,255,255,0.04); border-color: rgba(201,168,76,0.1); }
        .stat-card .num { font-size: 2.8rem; font-weight: 800; color: var(--secondary); line-height: 1.1; }
        .stat-card .label { font-size: 0.95rem; color: rgba(255,255,255,0.6); margin-top: 8px; }
        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .stat-card .num { font-size: 2rem; } }

        /* ===== Process / 流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .process-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--secondary);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            border: 2px solid rgba(201,168,76,0.15);
        }
        .process-step h4 { font-size: 1rem; margin-bottom: 8px; }
        .process-step p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
        .process-connector { display: none; }
        @media (min-width: 769px) {
            .process-grid { position: relative; }
            .process-grid::after {
                content: '';
                position: absolute;
                top: 48px;
                left: 12%;
                right: 12%;
                height: 2px;
                background: linear-gradient(90deg, rgba(201,168,76,0.3), rgba(201,168,76,0.1), rgba(201,168,76,0.3));
                z-index: 0;
                pointer-events: none;
            }
            .process-step { z-index: 1; }
        }
        @media (max-width: 768px) { .process-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } }
        @media (max-width: 520px) { .process-grid { grid-template-columns: 1fr; } }

        /* ===== Featured Cards / 热门赛事 ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .featured-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
        .featured-card-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15,27,45,0.6) 0%, transparent 50%);
        }
        .featured-card-img .tag {
            position: absolute;
            bottom: 16px;
            left: 20px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            z-index: 1;
        }
        .featured-card-body { padding: 20px 24px 24px; }
        .featured-card-body .meta { display: flex; gap: 16px; font-size: 0.8rem; color: var(--text-light); margin-bottom: 8px; }
        .featured-card-body .meta i { margin-right: 4px; }
        .featured-card-body h4 { font-size: 1.05rem; margin-bottom: 6px; }
        .featured-card-body p { font-size: 0.88rem; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        @media (max-width: 768px) { .featured-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
        @media (max-width: 520px) { .featured-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list { 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);
        }
        .faq-item:hover { border-color: rgba(201,168,76,0.15); }
        .faq-question {
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            transition: var(--transition);
            background: none;
            width: 100%;
            text-align: left;
            border: none;
        }
        .faq-question:hover { color: var(--secondary-dark); }
        .faq-question i { color: var(--secondary); font-size: 0.9rem; transition: var(--transition); }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }
        @media (max-width: 520px) {
            .faq-question { padding: 16px 20px; font-size: 0.95rem; }
            .faq-answer { padding: 0 20px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
        }
        .cta-content { position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
        .cta-content h2 { color: var(--text-white); margin-bottom: 16px; }
        .cta-content p { color: rgba(255,255,255,0.65); font-size: 1.05rem; margin-bottom: 32px; }
        .cta-content .btn { margin: 0 8px; }
        @media (max-width: 520px) { .cta-content .btn { display: block; width: 100%; margin: 8px 0; } }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.6);
            padding: 48px 0 24px;
            border-top: 1px solid rgba(201,168,76,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .site-logo { font-size: 1.2rem; margin-bottom: 12px; }
        .footer-brand p { font-size: 0.88rem; line-height: 1.6; color: rgba(255,255,255,0.5); max-width: 320px; }
        .footer-col h5 { color: var(--text-white); font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.03em; }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.04);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.35); }
        .footer-bottom a:hover { color: var(--secondary); }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-body); }
        ::-webkit-scrollbar-thumb { background: var(--text-light); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

        /* ===== Selection ===== */
        ::selection { background: var(--secondary); color: var(--primary); }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #3a4a8c;
            --primary-dark: #0f1a4a;
            --secondary: #e6a817;
            --secondary-light: #f0c040;
            --accent: #c0392b;
            --gradient-main: linear-gradient(135deg, #1a2a6c 0%, #2d4a8e 50%, #1a2a6c 100%);
            --gradient-hero: linear-gradient(135deg, #0f1a4a 0%, #1a2a6c 40%, #2d4a8e 100%);
            --gradient-gold: linear-gradient(135deg, #e6a817 0%, #f0c040 50%, #d4950f 100%);
            --bg-body: #f5f7fc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0f1a4a;
            --bg-light: #eef1f8;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #ffffff;
            --text-gold: #e6a817;
            --border-color: #e0e4f0;
            --border-light: #f0f2f8;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 4px 20px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 8px 40px rgba(26, 42, 108, 0.14);
            --shadow-gold: 0 4px 24px rgba(230, 168, 23, 0.25);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --tab-height: 64px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: var(--tab-height);
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        h1 { font-size: 2.4rem; }
        h2 { font-size: 2.0rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.25rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-md);
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--gradient-gold);
            color: var(--primary-dark);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(230, 168, 23, 0.35);
            color: var(--primary-dark);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255,255,255,0.35);
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(230, 168, 23, 0.08);
        }
        .btn-sm { padding: 8px 18px; font-size: 0.85rem; border-radius: var(--radius-sm); }
        .btn-lg { padding: 16px 36px; font-size: 1.1rem; border-radius: var(--radius-lg); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--primary);
            letter-spacing: 0.3px;
        }
        .badge-gold {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .badge-primary {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 26, 74, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            height: var(--header-height);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.5px;
        }
        .site-logo i { color: var(--secondary); font-size: 1.6rem; }
        .site-logo span { background: var(--gradient-gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            color: rgba(255,255,255,0.75);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a i { font-size: 0.85rem; }
        .nav-list a:hover,
        .nav-list a.active {
            color: var(--text-white);
            background: rgba(255,255,255,0.10);
        }
        .nav-list a.active { color: var(--secondary); }
        .nav-list .nav-cta {
            background: var(--gradient-gold);
            color: var(--primary-dark) !important;
            font-weight: 700;
            padding: 8px 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-gold);
        }
        .nav-list .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 28px rgba(230, 168, 23, 0.30);
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1100;
            background: rgba(15, 26, 74, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid rgba(255,255,255,0.06);
            height: var(--tab-height);
            padding: 0 8px;
            justify-content: space-around;
            align-items: center;
        }
        .mobile-tab-bar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            color: rgba(255,255,255,0.50);
            font-size: 0.65rem;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            min-width: 56px;
        }
        .mobile-tab-bar a i { font-size: 1.25rem; }
        .mobile-tab-bar a:hover,
        .mobile-tab-bar a.active { color: var(--secondary); background: rgba(230, 168, 23, 0.10); }
        .mobile-tab-bar a.active { color: var(--secondary); }

        /* ===== Article Page ===== */
        .article-banner {
            position: relative;
            padding: 120px 0 60px;
            background: var(--gradient-hero);
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-banner .container {
            position: relative;
            z-index: 2;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            margin-bottom: 20px;
        }
        .article-breadcrumb a {
            color: rgba(255,255,255,0.65);
        }
        .article-breadcrumb a:hover { color: var(--secondary); }
        .article-breadcrumb .sep { color: rgba(255,255,255,0.30); }
        .article-banner h1 {
            font-size: 2.6rem;
            color: var(--text-white);
            max-width: 900px;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.20);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            color: rgba(255,255,255,0.65);
            font-size: 0.92rem;
        }
        .article-meta i { margin-right: 6px; color: var(--secondary); }
        .article-meta .badge { background: rgba(230, 168, 23, 0.20); color: var(--secondary); }

        /* ===== Main Content ===== */
        .article-main-wrap {
            padding: 50px 0 70px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-secondary);
        }
        .article-body .content h2,
        .article-body .content h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .article-body .content h2 { font-size: 1.6rem; border-bottom: 2px solid var(--border-light); padding-bottom: 8px; }
        .article-body .content h3 { font-size: 1.3rem; }
        .article-body .content p { margin-bottom: 1.2rem; }
        .article-body .content img { margin: 1.5rem 0; border-radius: var(--radius-md); }
        .article-body .content ul,
        .article-body .content ol {
            margin: 1rem 0 1.2rem 1.8rem;
        }
        .article-body .content ul li { list-style: disc; margin-bottom: 6px; }
        .article-body .content ol li { list-style: decimal; margin-bottom: 6px; }
        .article-body .content blockquote {
            border-left: 4px solid var(--secondary);
            padding: 16px 24px;
            margin: 1.5rem 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content a { color: var(--primary); text-decoration: underline; }
        .article-body .content a:hover { color: var(--secondary); }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; display: block; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-light); font-size: 1.05rem; margin-bottom: 24px; }
        .article-not-found .btn { margin-top: 8px; }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--secondary); }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            color: var(--text-secondary);
            font-size: 0.92rem;
            transition: color var(--transition);
        }
        .sidebar-list a:hover { color: var(--primary); }
        .sidebar-list a img {
            width: 64px;
            height: 48px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .sidebar-list .item-title {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list .item-date {
            font-size: 0.75rem;
            color: var(--text-light);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            padding: 5px 14px;
            font-size: 0.80rem;
            border-radius: 50px;
            background: var(--bg-light);
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .sidebar-tags a:hover {
            background: var(--primary);
            color: var(--text-white);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.70);
            padding: 60px 0 30px;
            margin-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.90rem; color: rgba(255,255,255,0.55); line-height: 1.7; max-width: 360px; }
        .footer-col h5 {
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.55);
            font-size: 0.90rem;
            padding: 5px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.35);
            text-align: center;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 768px) {
            :root { --header-height: 64px; --tab-height: 60px; }
            body { padding-bottom: var(--tab-height); }
            .nav-list { display: none; }
            .mobile-tab-bar { display: flex; }
            .site-header .container { justify-content: center; }
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.25rem; }
            .article-banner { padding: 100px 0 40px; min-height: 240px; }
            .article-banner h1 { font-size: 1.8rem; }
            .article-body { padding: 24px 20px; }
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-brand p { max-width: 100%; }
            .container { padding: 0 16px; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.5rem; }
            .article-meta { font-size: 0.80rem; gap: 10px 16px; }
            .article-body .content { font-size: 0.95rem; }
            .btn-lg { padding: 14px 28px; font-size: 1rem; }
            .sidebar-card { padding: 20px 16px; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-3 { margin-top: 1.5rem; }
        .gap-2 { gap: 8px; }
        .flex-wrap { display: flex; flex-wrap: wrap; }
        .items-center { align-items: center; }

        /* ===== 文章页内相关文章网格 ===== */
        .related-posts {
            margin-top: 40px;
            padding-top: 32px;
            border-top: 2px solid var(--border-light);
        }
        .related-posts h3 {
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-posts h3 i { color: var(--secondary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .related-card img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }
        .related-card .related-body {
            padding: 14px 16px;
        }
        .related-card .related-body h4 {
            font-size: 0.92rem;
            font-weight: 600;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .related-card .related-body h4 a { color: var(--text-primary); }
        .related-card .related-body h4 a:hover { color: var(--primary); }
        .related-card .related-body .meta {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        @media (max-width: 768px) {
            .related-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* ===== 加载 / 空状态 ===== */
        .loading-placeholder {
            padding: 60px 20px;
            text-align: center;
            color: var(--text-light);
        }
        .loading-placeholder i { font-size: 2.4rem; margin-bottom: 12px; display: block; animation: pulse 1.5s infinite; }
        @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4ab0;
            --primary-dark: #0f1a45;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --accent: #c0392b;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a45;
            --bg-soft: #eef0f7;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-light: #6b6b80;
            --text-white: #f0f0f5;
            --border: #d6dae5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 8px 28px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 48px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --header-h: 72px;
            --footer-top: 60px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-h);
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        button, input, textarea { font-family: inherit; font-size: 1rem; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text-dark); font-weight: 700; }
        h1 { font-size: 2.6rem; }
        h2 { font-size: 2rem; margin-bottom: 0.5rem; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 0.75rem; }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section { padding: 70px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 { position: relative; display: inline-block; }
        .section-title h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p { color: var(--text-light); font-size: 1.05rem; max-width: 600px; margin: 12px auto 0; }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .site-logo i { color: var(--secondary); font-size: 1.6rem; }
        .site-logo span { background: linear-gradient(135deg, var(--primary) 20%, var(--primary-light) 80%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-body);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-list a i { font-size: 0.9rem; color: var(--text-light); transition: var(--transition); }
        .nav-list a:hover { background: var(--bg-soft); color: var(--primary); }
        .nav-list a:hover i { color: var(--primary); }
        .nav-list a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-list a.active i { color: rgba(255,255,255,0.85); }
        .nav-list a.nav-cta {
            background: var(--secondary);
            color: #fff;
            padding: 8px 22px;
        }
        .nav-list a.nav-cta i { color: rgba(255,255,255,0.9); }
        .nav-list a.nav-cta:hover { background: var(--secondary-light); transform: translateY(-1px); box-shadow: var(--shadow); }

        /* Mobile bottom tab */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            z-index: 1001;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 4px 12px;
            border-radius: 12px;
            transition: var(--transition);
        }
        .bottom-tab a i { font-size: 1.2rem; }
        .bottom-tab a.active { color: var(--primary); background: var(--bg-soft); }
        .bottom-tab a:hover { color: var(--primary); }

        /* ===== Hero / Banner ===== */
        .category-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            margin: 0 20px 20px;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .category-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            padding: 40px 24px;
        }
        .category-banner h1 {
            color: #fff;
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .category-banner h1 i { color: var(--secondary); margin-right: 10px; }
        .category-banner p {
            color: rgba(255,255,255,0.85);
            font-size: 1.15rem;
            max-width: 580px;
            margin: 0 auto 20px;
        }
        .category-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .category-banner .banner-tags span {
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255,255,255,0.1);
        }

        /* ===== Intro ===== */
        .intro-section {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 48px 40px;
            margin: 30px auto;
            box-shadow: var(--shadow-sm);
        }
        .intro-section .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .intro-section .intro-text h3 { font-size: 1.6rem; margin-bottom: 16px; }
        .intro-section .intro-text p { color: var(--text-light); font-size: 1.02rem; }
        .intro-section .intro-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .intro-section .stat-card {
            background: var(--bg-soft);
            border-radius: var(--radius-sm);
            padding: 20px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .intro-section .stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
        .intro-section .stat-card .num { font-size: 2rem; font-weight: 800; color: var(--primary); }
        .intro-section .stat-card .label { font-size: 0.85rem; color: var(--text-light); margin-top: 4px; }

        /* ===== 赛事项目网格 ===== */
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .event-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .event-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .event-card .card-img {
            height: 200px;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .event-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .event-card:hover .card-img img { transform: scale(1.04); }
        .event-card .card-body { padding: 22px 20px 24px; }
        .event-card .card-body h4 { font-size: 1.15rem; margin-bottom: 6px; }
        .event-card .card-body p { color: var(--text-light); font-size: 0.92rem; margin-bottom: 12px; }
        .event-card .card-body .badge {
            display: inline-block;
            background: var(--bg-soft);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
        }
        .event-card .card-body .badge.live { background: #fff0e6; color: var(--accent); }
        .event-card .card-body .badge.hot { background: #fff8e1; color: #b8860b; }

        /* ===== 数据/排名 ===== */
        .rank-section {
            background: var(--bg-dark);
            color: #fff;
            border-radius: var(--radius-lg);
            padding: 60px 44px;
            margin: 20px 0;
            position: relative;
            overflow: hidden;
        }
        .rank-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .rank-section .container { position: relative; z-index: 2; }
        .rank-section .section-title h2 { color: #fff; }
        .rank-section .section-title h2::after { background: var(--secondary); }
        .rank-section .section-title p { color: rgba(255,255,255,0.7); }
        .rank-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .rank-card {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius);
            padding: 24px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .rank-card:hover { background: rgba(255,255,255,0.14); transform: translateY(-3px); }
        .rank-card .rank-num { font-size: 2.4rem; font-weight: 800; color: var(--secondary); line-height: 1; }
        .rank-card .rank-name { font-size: 1rem; font-weight: 600; margin: 8px 0 4px; }
        .rank-card .rank-desc { font-size: 0.82rem; color: rgba(255,255,255,0.6); }

        /* ===== 热门赛事推荐 ===== */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .hot-card {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            align-items: center;
        }
        .hot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
        .hot-card .hot-img {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            flex-shrink: 0;
            overflow: hidden;
        }
        .hot-card .hot-img img { width: 100%; height: 100%; object-fit: cover; }
        .hot-card .hot-info { flex: 1; }
        .hot-card .hot-info h4 { font-size: 1.05rem; margin-bottom: 4px; }
        .hot-card .hot-info p { color: var(--text-light); font-size: 0.88rem; margin-bottom: 6px; }
        .hot-card .hot-info .meta { font-size: 0.78rem; color: var(--text-light); display: flex; gap: 12px; }
        .hot-card .hot-info .meta i { margin-right: 3px; color: var(--primary-light); }

        /* ===== 赛事阶段 ===== */
        .stage-section {
            background: var(--bg-soft);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
        }
        .stage-steps {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .stage-step {
            flex: 1;
            min-width: 140px;
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 16px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }
        .stage-step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
        .stage-step .step-icon { font-size: 2rem; color: var(--primary); margin-bottom: 8px; }
        .stage-step h5 { font-size: 1rem; margin-bottom: 4px; }
        .stage-step p { font-size: 0.82rem; color: var(--text-light); margin: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow); }
        .faq-item .question { font-weight: 600; font-size: 1.05rem; color: var(--text-dark); display: flex; align-items: center; gap: 10px; }
        .faq-item .question i { color: var(--secondary); font-size: 1.1rem; }
        .faq-item .answer { margin-top: 10px; color: var(--text-light); font-size: 0.95rem; padding-left: 28px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 60px 44px;
            text-align: center;
            color: #fff;
            margin: 30px 0;
            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: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2.2rem; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 520px; margin: 0 auto 24px; }
        .cta-section .btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
        .cta-section .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-section .btn-primary { background: var(--secondary); color: #fff; }
        .cta-section .btn-primary:hover { background: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.4); }
        .cta-section .btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); }
        .cta-section .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 56px 0 30px;
            margin-top: 60px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .site-footer .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .site-logo { color: #fff; font-size: 1.4rem; margin-bottom: 12px; }
        .footer-brand .site-logo span { -webkit-text-fill-color: #fff; background: none; }
        .footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.55); max-width: 320px; line-height: 1.7; }
        .footer-col h5 { color: #fff; font-size: 1rem; margin-bottom: 16px; font-weight: 600; }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--secondary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .event-grid { grid-template-columns: repeat(2, 1fr); }
            .rank-grid { grid-template-columns: repeat(2, 1fr); }
            .hot-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .intro-section .intro-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            :root { --header-h: 60px; }
            .nav-list a { padding: 6px 14px; font-size: 0.82rem; }
            .nav-list a span { display: none; }
            .nav-list a i { font-size: 1rem; }
            .nav-list a.nav-cta { padding: 6px 16px; }
            .bottom-tab { display: flex; }
            body { padding-bottom: 64px; }
            .category-banner { min-height: 240px; margin: 0 10px 10px; border-radius: 0 0 var(--radius) var(--radius); }
            .category-banner h1 { font-size: 2rem; }
            .category-banner p { font-size: 0.95rem; }
            .section { padding: 40px 0; }
            .section-title { margin-bottom: 28px; }
            .section-title h2 { font-size: 1.5rem; }
            .event-grid { gap: 16px; }
            .event-card .card-img { height: 150px; }
            .rank-section { padding: 36px 20px; }
            .rank-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .hot-card { flex-direction: column; text-align: center; padding: 16px; }
            .hot-card .hot-img { width: 80px; height: 80px; margin: 0 auto; }
            .hot-card .hot-info .meta { justify-content: center; }
            .stage-steps { flex-direction: column; }
            .stage-step { min-width: auto; }
            .cta-section { padding: 40px 20px; }
            .cta-section h2 { font-size: 1.5rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .intro-section { padding: 28px 20px; }
            .intro-section .intro-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
            .faq-item { padding: 16px 18px; }
        }
        @media (max-width: 520px) {
            .nav-list a { padding: 6px 10px; font-size: 0.75rem; }
            .nav-list a i { font-size: 0.85rem; }
            .category-banner h1 { font-size: 1.6rem; }
            .category-banner .banner-tags span { font-size: 0.75rem; padding: 4px 12px; }
            .event-grid { grid-template-columns: 1fr; }
            .rank-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
            .rank-card { padding: 16px 12px; }
            .rank-card .rank-num { font-size: 1.8rem; }
            .intro-section .intro-stats { grid-template-columns: 1fr 1fr; }
            .cta-section .btn-group { flex-direction: column; align-items: center; }
            .cta-section .btn { width: 100%; max-width: 260px; justify-content: center; }
        }