/* roulang page: index */
:root {
            --brand-primary: #FF5722;
            --brand-primary-hover: #E64A19;
            --brand-primary-light: #FFEDE7;
            --brand-secondary: #00C853;
            --brand-accent: #00E5FF;
            --dark-bg: #0B0E14;
            --dark-card: #161B22;
            --light-bg: #F8F9FA;
            --pure-white: #FFFFFF;
            --text-main: #111827;
            --text-muted: #4B5563;
            --text-light: #9CA3AF;
            --border-color: #E5E7EB;
            --card-radius: 16px;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --box-shadow-card: 0 10px 30px rgba(0, 0, 0, 0.05);
            --box-shadow-hover: 0 16px 40px rgba(255, 87, 34, 0.12);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: var(--pure-white);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-smooth);
        }

        /* 顶部微通知条 */
        .top-notification-bar {
            background-color: #0F141C;
            color: #D1D5DB;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-notification-bar a {
            color: var(--brand-accent);
        }

        /* 主导航条 */
        .site-header {
            background: #FFFFFF;
            box-shadow: 0 2px 16px rgba(0,0,0,0.06);
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .navbar-brand-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--text-main);
            padding: 10px 18px !important;
            font-size: 15px;
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--brand-primary);
        }

        /* 面包屑辅助栏 */
        .breadcrumb-subbar {
            background: #F3F4F6;
            padding: 10px 0;
            font-size: 13px;
            border-bottom: 1px solid var(--border-color);
        }

        /* 药丸按钮规范 */
        .btn-brand-primary {
            background: linear-gradient(135deg, #FF5722 0%, #FF7043 100%);
            color: #FFFFFF !important;
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(255, 87, 34, 0.35);
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-brand-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 87, 34, 0.45);
            background: linear-gradient(135deg, #F4511E 0%, #FF5722 100%);
        }

        .btn-brand-secondary {
            background: rgba(255, 255, 255, 0.95);
            color: var(--text-main) !important;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            transition: var(--transition-smooth);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-brand-secondary:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary) !important;
            transform: translateY(-2px);
        }

        /* 章节通栏样式 */
        .section-padding {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            background-color: var(--brand-primary-light);
            color: var(--brand-primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        /* Hero 板块：拼团转化风格 */
        .hero-banner-section {
            position: relative;
            background: url('/assets/images/4121c5d76eaaa65f.png') center center/cover no-repeat;
            padding: 100px 0 90px;
            color: #FFFFFF;
        }
        .hero-banner-overlay {
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(90deg, rgba(11, 14, 20, 0.94) 0%, rgba(11, 14, 20, 0.78) 55%, rgba(11, 14, 20, 0.6) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-h1 {
            font-size: 42px;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .hero-p {
            font-size: 16px;
            line-height: 1.8;
            color: #E5E7EB;
            margin-bottom: 30px;
        }
        .hero-group-deal-box {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border-radius: var(--card-radius);
            padding: 24px;
            max-width: 460px;
        }
        .group-progress-wrap {
            background: rgba(255, 255, 255, 0.2);
            height: 8px;
            border-radius: 4px;
            overflow: hidden;
            margin: 12px 0 16px;
        }
        .group-progress-bar {
            background: var(--brand-primary);
            height: 100%;
            width: 78%;
        }

        /* 卡片基础与动效 */
        .custom-card {
            background: #FFFFFF;
            border: 1px solid var(--border-color);
            border-radius: var(--card-radius);
            padding: 28px;
            box-shadow: var(--box-shadow-card);
            transition: var(--transition-smooth);
            height: 100%;
        }
        .custom-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 87, 34, 0.3);
            box-shadow: var(--box-shadow-hover);
        }

        /* 热门赛事卡片 */
        .event-card-img-wrap {
            position: relative;
            height: 190px;
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .event-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }
        .custom-card:hover .event-card-img-wrap img {
            transform: scale(1.05);
        }
        .event-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            color: #FFFFFF;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
        }

        /* 深色安全防伪专区 */
        .dark-security-section {
            background-color: var(--dark-bg);
            color: #FFFFFF;
        }
        .dark-security-card {
            background: var(--dark-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--card-radius);
            padding: 30px;
            height: 100%;
            transition: var(--transition-smooth);
        }
        .dark-security-card:hover {
            border-color: var(--brand-accent);
            transform: translateY(-4px);
        }

        /* 数据计数统计条 */
        .metrics-banner {
            background: linear-gradient(135deg, #111827 0%, #1F2937 100%);
            color: #FFFFFF;
            padding: 45px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .metric-num {
            font-size: 38px;
            font-weight: 900;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .metric-label {
            font-size: 14px;
            color: #9CA3AF;
        }

        /* 标签云 */
        .tag-cloud-item {
            display: inline-block;
            background: #FFFFFF;
            border: 1px solid #E5E7EB;
            padding: 8px 18px;
            margin: 6px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--text-main);
            font-weight: 500;
            transition: var(--transition-smooth);
        }
        .tag-cloud-item:hover {
            background: var(--brand-primary);
            color: #FFFFFF;
            border-color: var(--brand-primary);
            transform: translateY(-2px);
        }

        /* 排行榜单样式 */
        .ranking-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            background: #FFFFFF;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            transition: var(--transition-smooth);
        }
        .ranking-item:hover {
            border-color: var(--brand-primary);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
        }
        .rank-badge {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F3F4F6;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 13px;
            margin-right: 14px;
        }
        .rank-top-1 { background: #FF5722; color: #FFFFFF; }
        .rank-top-2 { background: #FF9800; color: #FFFFFF; }
        .rank-top-3 { background: #FFC107; color: #111827; }

        /* 手风琴改造 */
        .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background-color: var(--brand-primary-light);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(255, 87, 34, 0.25);
        }
        .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: 12px !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        /* 吸底固定转化栏 */
        .sticky-action-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(17, 24, 39, 0.95);
            backdrop-filter: blur(10px);
            color: #FFFFFF;
            padding: 12px 0;
            z-index: 1020;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }

        /* 页脚 */
        .site-footer {
            background-color: #0B0E14;
            color: #9CA3AF;
            padding: 70px 0 90px;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer h6 {
            color: #FFFFFF;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .site-footer ul {
            list-style: none;
            padding-left: 0;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a:hover {
            color: var(--brand-primary);
        }
        .footer-copyright {
            margin-top: 45px;
            padding-top: 25px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
        }

        @media (max-width: 768px) {
            .hero-h1 { font-size: 30px; }
            .section-title { font-size: 26px; }
            .section-padding { padding: 50px 0; }
            .sticky-action-bar { display: none; }
        }