/* roulang page: index */
:root {
            --color-bg-deep: #060b14;
            --color-bg-primary: #0a0f1d;
            --color-bg-secondary: #111827;
            --color-bg-card: #161c2c;
            --color-bg-card-hover: #1c2338;
            --color-bg-glass: rgba(14, 20, 36, 0.82);
            --color-accent: #10b981;
            --color-accent-glow: rgba(16, 185, 129, 0.35);
            --color-accent-bright: #34d399;
            --color-gold: #f59e0b;
            --color-gold-light: #fbbf24;
            --color-red-live: #ef4444;
            --color-text-primary: #f1f5f9;
            --color-text-secondary: #cbd5e1;
            --color-text-muted: #94a3b8;
            --color-border: #1e293b;
            --color-border-light: #334155;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.45);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.55);
            --shadow-glow-green: 0 0 24px rgba(16, 185, 129, 0.25);
            --shadow-glow-gold: 0 0 20px rgba(245, 158, 11, 0.2);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--color-bg-deep);
            color: var(--color-text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        button:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        input {
            font-family: inherit;
        }
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== 导航 - 悬浮胶囊 ========== */
        .site-header {
            position: fixed;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: auto;
            max-width: calc(100vw - 40px);
            transition: all var(--transition-normal);
        }
        .nav-capsule {
            background: var(--color-bg-glass);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-full);
            padding: 8px 10px 8px 22px;
            display: flex;
            align-items: center;
            gap: 4px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(255, 255, 255, 0.04) inset;
            transition: all var(--transition-normal);
        }
        .nav-capsule:hover {
            box-shadow: 0 10px 48px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(255, 255, 255, 0.06) inset;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: #ffffff;
            white-space: nowrap;
            letter-spacing: 0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-right: 12px;
            transition: color var(--transition-fast);
        }
        .nav-logo:hover {
            color: var(--color-accent-bright);
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--color-accent), #059669);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-green);
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 3px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            background: var(--color-accent);
            color: #ffffff;
            font-weight: 600;
            box-shadow: var(--shadow-glow-green);
        }
        .nav-link.active:hover {
            background: var(--color-accent-bright);
            color: #ffffff;
        }
        .nav-hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #ffffff;
            background: rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }
        .nav-hamburger:hover {
            background: rgba(255, 255, 255, 0.14);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 11, 20, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 14px;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-normal);
        }
        .mobile-menu.open {
            display: flex;
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu .nav-link {
            font-size: 1.25rem;
            padding: 14px 32px;
        }
        .mobile-menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }
        .mobile-menu-close:hover {
            background: rgba(255, 255, 255, 0.18);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 140px 20px 80px;
            overflow: hidden;
            background: radial-gradient(ellipse at 50% 30%, rgba(16, 185, 129, 0.08) 0%, transparent 65%),
                radial-gradient(ellipse at 75% 60%, rgba(245, 158, 11, 0.05) 0%, transparent 55%),
                var(--color-bg-primary);
        }
        .hero-bg-grid {
            position: absolute;
            inset: 0;
            pointer-events: none;
            opacity: 0.18;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 48px 48px;
            mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 70%);
            -webkit-mask-image: radial-gradient(ellipse at 50% 40%, black 30%, transparent 70%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            width: 100%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: var(--radius-full);
            padding: 7px 18px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-accent-bright);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 50%;
            animation: pulse-dot 1.6s ease-in-out infinite;
            box-shadow: 0 0 10px var(--color-accent-glow);
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 6px var(--color-accent-glow);
            }
            50% {
                box-shadow: 0 0 20px var(--color-accent-glow), 0 0 36px rgba(16, 185, 129, 0.4);
            }
        }
        .hero-title {
            font-family: var(--font-heading);
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .hero-title-highlight {
            background: linear-gradient(135deg, var(--color-accent-bright), var(--color-gold-light));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.12rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-search-wrap {
            display: flex;
            align-items: center;
            max-width: 500px;
            margin: 0 auto 20px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 5px 5px 5px 20px;
            gap: 8px;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-md);
        }
        .hero-search-wrap:focus-within {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-glow-green), var(--shadow-md);
        }
        .hero-search-input {
            flex: 1;
            background: transparent;
            border: none;
            color: #ffffff;
            font-size: 0.95rem;
            padding: 10px 0;
            min-width: 0;
        }
        .hero-search-input::placeholder {
            color: var(--color-text-muted);
        }
        .hero-search-btn {
            background: var(--color-accent);
            color: #ffffff;
            border-radius: var(--radius-full);
            padding: 10px 22px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-glow-green);
            letter-spacing: 0.01em;
        }
        .hero-search-btn:hover {
            background: var(--color-accent-bright);
            box-shadow: 0 0 32px rgba(16, 185, 129, 0.4);
            transform: translateY(-1px);
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 8px;
        }
        .hero-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text-primary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }
        .hero-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.2);
        }

        /* 实时比分滚动条 */
        .live-scores-strip {
            position: relative;
            z-index: 2;
            margin-top: 36px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
            overflow: hidden;
            border-radius: var(--radius-lg);
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            padding: 10px 16px;
            box-shadow: var(--shadow-md);
        }
        .live-scores-strip-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            padding: 0 4px;
        }
        .live-indicator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-red-live);
            letter-spacing: 0.03em;
        }
        .live-indicator-dot {
            width: 7px;
            height: 7px;
            background: var(--color-red-live);
            border-radius: 50%;
            animation: pulse-dot-red 1.2s ease-in-out infinite;
        }
        @keyframes pulse-dot-red {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px rgba(239, 68, 68, 0.5);
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 16px rgba(239, 68, 68, 0.7);
            }
        }
        .live-scores-track {
            display: flex;
            gap: 14px;
            overflow-x: auto;
            scrollbar-width: thin;
            scrollbar-color: var(--color-border-light) transparent;
            padding-bottom: 4px;
            -webkit-overflow-scrolling: touch;
        }
        .live-scores-track::-webkit-scrollbar {
            height: 4px;
        }
        .live-scores-track::-webkit-scrollbar-track {
            background: transparent;
        }
        .live-scores-track::-webkit-scrollbar-thumb {
            background: var(--color-border-light);
            border-radius: 10px;
        }
        .live-score-card {
            flex: 0 0 auto;
            background: var(--color-bg-secondary);
            border-radius: var(--radius-md);
            padding: 10px 16px;
            min-width: 170px;
            text-align: center;
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            cursor: default;
        }
        .live-score-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-glow-green);
            background: var(--color-bg-card-hover);
        }
        .live-score-league {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            margin-bottom: 4px;
            letter-spacing: 0.02em;
        }
        .live-score-teams {
            font-weight: 600;
            font-size: 0.9rem;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .live-score-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-accent-bright);
            letter-spacing: 0.03em;
        }
        .live-score-time {
            font-size: 0.7rem;
            color: var(--color-text-muted);
            margin-top: 2px;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 72px 20px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 8px;
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }

        /* ========== 特点卡片网格 ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1100px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), transparent);
            opacity: 0;
            transition: opacity var(--transition-normal);
        }
        .feature-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-4px);
            background: var(--color-bg-card-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--color-accent-bright);
        }
        .feature-card-title {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
            color: #ffffff;
        }
        .feature-card-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* ========== 分类入口卡片 ========== */
        .category-entry-card {
            display: flex;
            align-items: center;
            gap: 28px;
            background: linear-gradient(135deg, #0f1a2e, #111d30);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 36px 40px;
            max-width: 800px;
            margin: 0 auto;
            transition: all var(--transition-normal);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .category-entry-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-3px);
        }
        .category-entry-icon-wrap {
            width: 68px;
            height: 68px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, var(--color-accent), #059669);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-green);
        }
        .category-entry-info h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 4px;
        }
        .category-entry-info p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }
        .category-entry-arrow {
            margin-left: auto;
            font-size: 1.2rem;
            color: var(--color-accent);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }
        .category-entry-card:hover .category-entry-arrow {
            transform: translateX(6px);
        }

        /* ========== 热门赛事卡片 ========== */
        .matches-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            max-width: 1050px;
            margin: 0 auto;
        }
        .match-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            text-align: center;
            transition: all var(--transition-normal);
        }
        .match-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            background: var(--color-bg-card-hover);
        }
        .match-card-league {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
        }
        .match-card-teams {
            font-weight: 700;
            font-size: 1rem;
            color: #ffffff;
            margin-bottom: 8px;
        }
        .match-card-score {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent-bright);
            letter-spacing: 0.04em;
            margin-bottom: 4px;
        }
        .match-card-status {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }
        .match-card-status.live {
            color: var(--color-red-live);
            font-weight: 600;
        }

        /* ========== 排行表 ========== */
        .ranking-table-wrap {
            max-width: 800px;
            margin: 0 auto;
            background: var(--color-bg-card);
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .ranking-table thead {
            background: rgba(16, 185, 129, 0.08);
        }
        .ranking-table th {
            padding: 14px 16px;
            text-align: left;
            font-weight: 600;
            color: var(--color-accent-bright);
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .ranking-table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-text-primary);
            vertical-align: middle;
        }
        .ranking-table tbody tr {
            transition: background var(--transition-fast);
        }
        .ranking-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }
        .rank-num {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--color-gold);
            width: 40px;
        }
        .rank-team {
            font-weight: 600;
            color: #ffffff;
        }
        .rank-pts {
            font-weight: 700;
            color: var(--color-accent-bright);
        }

        /* ========== 数据统计卡片 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }
        .stat-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px 18px;
            text-align: center;
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-glow-green);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent-bright);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        /* ========== 流程步骤 ========== */
        .steps-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .step-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: all var(--transition-fast);
        }
        .step-item:hover {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
        }
        .step-num-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-glow-green);
        }
        .step-content h4 {
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 3px;
            font-size: 1rem;
        }
        .step-content p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border-light);
        }
        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 0.95rem;
            color: #ffffff;
            text-align: left;
            transition: all var(--transition-fast);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--color-accent-bright);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition-fast);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(16, 185, 129, 0.2);
            color: var(--color-accent-bright);
        }

        /* ========== CTA 横幅 ========== */
        .cta-banner {
            background: linear-gradient(135deg, #0d1f17, #0f1d2a, #0d1f17);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            max-width: 850px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow-green);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(16, 185, 129, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner-title {
            font-family: var(--font-heading);
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-banner-desc {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .cta-banner-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #ffffff;
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: var(--shadow-glow-green);
            position: relative;
            z-index: 1;
        }
        .cta-banner-btn:hover {
            background: var(--color-accent-bright);
            box-shadow: 0 0 40px rgba(16, 185, 129, 0.5);
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-bg-secondary);
            border-top: 1px solid var(--color-border);
            padding: 40px 20px 28px;
            text-align: center;
        }
        .footer-brand {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: #ffffff;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            justify-content: center;
            margin-bottom: 16px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent-bright);
        }
        .footer-copyright {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            letter-spacing: 0.02em;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .matches-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 24px;
            }
            .category-entry-arrow {
                margin-left: 0;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-capsule {
                padding: 8px 14px 8px 16px;
            }
            .nav-logo {
                font-size: 0.9rem;
                margin-right: 0;
            }
            .nav-logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .matches-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .ranking-table-wrap {
                overflow-x: auto;
            }
            .ranking-table {
                font-size: 0.78rem;
                min-width: 600px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.9rem;
            }
            .hero-search-wrap {
                max-width: 100%;
            }
            .live-score-card {
                min-width: 140px;
                padding: 8px 12px;
            }
            .live-score-num {
                font-size: 1.1rem;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .section {
                padding: 48px 16px;
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hero-title {
                font-size: 1.55rem;
            }
            .hero-section {
                padding: 120px 14px 60px;
            }
            .nav-capsule {
                padding: 7px 10px 7px 14px;
            }
            .nav-logo {
                font-size: 0.8rem;
            }
            .feature-card {
                padding: 20px 16px;
            }
            .step-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                padding: 18px 16px;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.82rem;
            }
            .live-scores-strip {
                padding: 8px 10px;
                margin-top: 24px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #0a1128;
  --primary-light: #1c2541;
  --primary-soft: #2a3a5c;
  --accent: #e63946;
  --accent-hover: #c1121f;
  --accent-glow: #ff4d6d;
  --gold: #f4a261;
  --gold-light: #ffb77c;
  --text-on-dark: #f1faee;
  --text-on-light: #1d3557;
  --text-muted: #8d99ae;
  --bg-light: #f8f9fa;
  --bg-card: #ffffff;
  --border-radius: 14px;
  --border-radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.2);
  --transition: 0.25s cubic-bezier(0.2, 0.9, 0.4, 1);
  --font-mono: 'SF Mono', 'Fira Code', 'Courier New', monospace;
}
*, *::before, *::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-on-light);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width:100%; height:auto; display:block; }
a { text-decoration: none; color: inherit; }
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Navigation - Floating Capsule */
.site-header {
  position: fixed;
  top: 24px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  pointer-events: none;
}
.nav-capsule {
  pointer-events: auto;
  display: flex;
  align-items: center;
  background: rgba(10,17,40,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 100px;
  padding: 0.6rem 1.8rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  border: 1px solid rgba(255,255,255,0.08);
  gap: 2rem;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  white-space: nowrap;
}
.nav-logo-icon {
  font-size: 1.5rem;
  color: var(--accent);
}
.nav-links-desktop {
  display: flex;
  gap: 1.2rem;
}
.nav-link {
  color: rgba(255,255,255,0.8);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.45rem 1rem;
  border-radius: 50px;
  transition: var(--transition);
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav-link.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(230,57,70,0.35);
}
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.6rem;
  cursor: pointer;
}
@media (max-width: 768px) {
  .nav-links-desktop { display: none; }
  .nav-hamburger { display: block; }
  .nav-capsule { width: 92%; justify-content: space-between; }
}

/* Hero Section */
.hero-section {
  padding: 160px 0 100px;
  background: radial-gradient(circle at 20% 30%, #1c2541 0%, #0a1128 100%);
  color: var(--text-on-dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="grid" width="40" height="40" patternUnits="userSpaceOnUse"><path d="M 40 0 L 0 0 0 40" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(/%23grid)"/></svg>');
  opacity: 0.6;
  pointer-events: none;
}
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px;
  padding: 0.4rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--gold-light);
  backdrop-filter: blur(5px);
}
.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}
.hero-title .highlight {
  color: var(--accent);
  background: linear-gradient(135deg, var(--accent), #ff6b6b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 2.5rem;
  color: rgba(241,250,238,0.8);
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-primary, .btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  box-shadow: 0 6px 18px rgba(230,57,70,0.4);
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 10px 25px rgba(230,57,70,0.5); }
.btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
}

/* Live score ticker */
.live-ticker {
  background: var(--primary-light);
  border-radius: var(--border-radius);
  margin-top: -30px;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow);
  padding: 1.5rem 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.06);
}
.ticker-label {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-right: 0.5rem;
}
.ticker-label .pulse {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  animation: pulse 1.5s infinite;
}
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(230,57,70,0.7); } 70% { box-shadow: 0 0 0 12px rgba(230,57,70,0); } 100% { box-shadow: 0 0 0 0 rgba(230,57,70,0); } }
.match-card-mini {
  background: rgba(255,255,255,0.05);
  border-radius: 40px;
  padding: 0.5rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 600;
  color: #fff;
  font-size: 0.9rem;
}
.match-card-mini .score {
  font-family: var(--font-mono);
  background: var(--accent);
  padding: 0.2rem 0.6rem;
  border-radius: 8px;
}
.live-dot {
  color: #2ecc71;
  font-size: 0.6rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}
.section-dark {
  background: var(--primary);
  color: var(--text-on-dark);
}
.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.section-sub {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
  color: var(--text-muted);
}
/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}
.feature-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  font-size: 2.4rem;
  color: var(--accent);
  margin-bottom: 1.2rem;
}
.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}
/* Data Stats */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem;
  margin: 2.5rem 0;
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
}
.stat-label {
  color: rgba(241,250,238,0.75);
  font-weight: 600;
}
/* Process Steps */
.process-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}
.step {
  text-align: center;
  max-width: 220px;
}
.step-circle {
  width: 64px; height: 64px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.8rem;
  color: #fff;
  box-shadow: 0 6px 16px rgba(230,57,70,0.3);
}
/* Application scenarios */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.8rem;
}
.scenario-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(5px);
  border-radius: var(--border-radius);
  padding: 2rem 1.5rem;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.08);
}
/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--border-radius-sm);
  margin-bottom: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.03);
}
.faq-item h3 {
  font-size: 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item p {
  margin-top: 0.8rem;
  color: var(--text-muted);
  display: none;
}
.faq-item.open p { display: block; }
/* CTA section */
.cta-section {
  background: linear-gradient(135deg, var(--accent), #b3121f);
  color: #fff;
  text-align: center;
  border-radius: var(--border-radius);
  margin: 3rem auto;
  padding: 3.5rem 2rem;
}
/* Footer */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.7);
  padding: 3rem 0;
  text-align: center;
}
.footer-brand {
  font-weight: 800;
  font-size: 1.4rem;
  color: #fff;
  margin-bottom: 0.8rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0;
}
.footer-links a { color: rgba(255,255,255,0.8); font-weight: 600; }
.footer-links a:hover { color: #fff; }
.footer-copyright { font-size: 0.85rem; margin-top: 1.2rem; }

/* Mobile adjustments */
@media (max-width: 768px) {
  .section { padding: 3rem 1rem; }
  .hero-section { padding: 140px 1rem 80px; }
  .live-ticker { flex-direction: column; align-items: flex-start; }
}