/* roulang page: index */
:root {
            --brand-primary: #FF3823;
            --brand-secondary: #FF6B00;
            --brand-dark: #0F172A;
            --brand-card-bg: #1E293B;
            --brand-light: #F8FAFC;
            --brand-border: #E2E8F0;
            --brand-accent: #10B981;
            --brand-text: #1E293B;
            --brand-text-muted: #64748B;
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
            --shadow-lg: 0 20px 35px -10px rgba(255, 56, 35, 0.15);
            --radius-default: 16px;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--brand-light);
            color: var(--brand-text);
            line-height: 1.65;
            padding-bottom: 70px;
        }

        @media (min-width: 768px) {
            body {
                padding-bottom: 0;
            }
        }

        /* 顶部导航 */
        .site-navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--brand-border);
            padding: 14px 0;
        }
        .site-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--brand-dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
        }
        .nav-link-custom {
            font-weight: 600;
            color: var(--brand-text);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 8px;
            transition: all 0.25s ease;
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: var(--brand-primary);
            background-color: rgba(255, 56, 35, 0.08);
        }

        /* 移动端底部 Tab 栏 */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--brand-border);
            z-index: 1040;
            box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
        }
        @media (max-width: 767.98px) {
            .mobile-tab-bar {
                display: flex;
                justify-content: space-around;
                align-items: center;
            }
        }
        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: var(--brand-text-muted);
            font-size: 0.75rem;
            font-weight: 600;
            width: 25%;
            height: 100%;
            position: relative;
        }
        .tab-item i {
            font-size: 1.25rem;
            margin-bottom: 2px;
        }
        .tab-item.active {
            color: var(--brand-primary);
        }
        .tab-item.active::before {
            content: '';
            position: absolute;
            top: 0;
            width: 32px;
            height: 3px;
            background-color: var(--brand-primary);
            border-radius: 0 0 4px 4px;
        }

        /* 按钮与徽章 */
        .btn-brand-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #ffffff;
            border: none;
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 700;
            box-shadow: 0 8px 20px rgba(255, 56, 35, 0.25);
            transition: all 0.25s ease;
        }
        .btn-brand-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 25px rgba(255, 56, 35, 0.35);
            color: #ffffff;
        }
        .btn-brand-outline {
            border: 2px solid var(--brand-primary);
            color: var(--brand-primary);
            background: transparent;
            border-radius: 10px;
            padding: 10px 22px;
            font-weight: 700;
            transition: all 0.25s ease;
        }
        .btn-brand-outline:hover {
            background: var(--brand-primary);
            color: #fff;
        }
        .pulse-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            background: rgba(16, 185, 129, 0.12);
            color: var(--brand-accent);
        }
        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: var(--brand-accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
            animation: pulse-animation 1.6s infinite cubic-bezier(0.66, 0, 0, 1);
        }
        @keyframes pulse-animation {
            to {
                box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
            }
        }

        /* 板块通用 */
        .section-wrapper {
            padding: 70px 0;
            position: relative;
        }
        .section-title-wrap {
            margin-bottom: 40px;
        }
        .section-title {
            font-size: 1.85rem;
            font-weight: 800;
            color: var(--brand-dark);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            color: var(--brand-text-muted);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.6;
        }

        /* Hero 矮版斜切色块首屏 */
        .hero-banner-wrap {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            color: #fff;
            padding: 50px 0 60px 0;
            position: relative;
            overflow: hidden;
            border-bottom: 4px solid var(--brand-primary);
        }
        .hero-banner-wrap::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255,56,35,0.2) 0%, rgba(255,56,35,0) 70%);
            pointer-events: none;
        }
        .hero-h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .hero-desc {
            font-size: 1rem;
            color: #cbd5e1;
            line-height: 1.65;
            margin-bottom: 24px;
        }
        .hero-stat-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
        }
        .hero-stat-card .val {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--brand-secondary);
            font-family: DIN, -apple-system, sans-serif;
        }
        .hero-stat-card .lbl {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-top: 4px;
        }

        /* 自定义卡片 */
        .custom-card {
            background: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: var(--radius-default);
            padding: 24px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }
        .custom-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(255, 56, 35, 0.3);
        }
        .card-dark {
            background: var(--brand-card-bg);
            border-color: rgba(255, 255, 255, 0.1);
            color: #ffffff;
        }
        .card-dark .text-muted-custom {
            color: #94a3b8;
        }

        /* 对比表格看板 */
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: var(--radius-default);
            overflow: hidden;
            background: #ffffff;
            border: 1px solid var(--brand-border);
            box-shadow: var(--shadow-sm);
        }
        .compare-table th {
            background-color: #f1f5f9;
            padding: 16px 20px;
            font-weight: 700;
            color: var(--brand-dark);
            border-bottom: 1px solid var(--brand-border);
        }
        .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--brand-border);
            color: var(--brand-text);
            font-size: 0.95rem;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-table .highlight-col {
            background-color: rgba(255, 56, 35, 0.03);
            font-weight: 700;
            color: var(--brand-primary);
        }

        /* 赛程里程碑时间轴 */
        .timeline-container {
            position: relative;
            padding-left: 28px;
        }
        .timeline-container::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: var(--brand-border);
        }
        .timeline-node {
            position: relative;
            margin-bottom: 30px;
        }
        .timeline-node:last-child {
            margin-bottom: 0;
        }
        .timeline-node::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--brand-primary);
            border: 2px solid #ffffff;
            box-shadow: 0 0 0 3px rgba(255, 56, 35, 0.2);
        }

        /* 折叠面板 (FAQ) */
        .accordion-item-custom {
            background: #ffffff;
            border: 1px solid var(--brand-border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-button-custom {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-weight: 700;
            color: var(--brand-dark);
            background: #ffffff;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .accordion-button-custom:not(.collapsed) {
            color: var(--brand-primary);
            background-color: rgba(255, 56, 35, 0.02);
            box-shadow: inset 0 -1px 0 var(--brand-border);
        }
        .accordion-body-custom {
            padding: 20px 24px;
            color: var(--brand-text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        /* 积分榜单条目 */
        .rank-badge {
            width: 28px;
            height: 28px;
            border-radius: 6px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.9rem;
            color: #ffffff;
            background: #64748B;
        }
        .rank-1 { background: linear-gradient(135deg, #F59E0B, #D97706); }
        .rank-2 { background: linear-gradient(135deg, #94A3B8, #64748B); }
        .rank-3 { background: linear-gradient(135deg, #B45309, #78350F); }

        /* 订阅转化表单区 */
        .subscribe-box {
            background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
            border-radius: 20px;
            padding: 40px;
            color: #ffffff;
            box-shadow: var(--shadow-lg);
        }

        /* 网站页脚 */
        .site-footer {
            background-color: #0B1120;
            color: #94A3B8;
            padding: 60px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }
        .footer-title {
            color: #ffffff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--brand-secondary);
        }
        .footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.82rem;
            text-align: center;
        }