/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15,23,42,0.06);
            --shadow-hover: 0 8px 28px rgba(15,23,42,0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }
        @media (max-width: 640px) {
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }
        /* 按钮三态 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37,99,235,0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245,158,11,0.4);
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }
        /* 卡片 */
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        /* badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }
        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }
        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }
        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }
        /* chip */
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
        }
        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15,23,42,0.12);
        }
        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
        }
        .chip-live {
            background-color: var(--green);
            color: #fff;
        }
        .chip-live::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background-color: #fff;
            animation: pulse-dot 1.4s ease-in-out infinite;
        }
        .chip-replay {
            background-color: #DBEAFE;
            color: #1E40AF;
        }
        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.4);
            }
        }
        /* 导航 */
        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .nav-mobile-btn {
                display: block !important;
            }
        }
        @media (min-width: 1025px) {
            .nav-mobile-btn {
                display: none !important;
            }
        }
        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 12px;
            background-color: #fff;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }
        .faq-item:focus-within {
            border-color: var(--primary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background-color: #fff;
            border-left: 3px solid var(--primary);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            text-align: left;
            transition: background-color 0.2s ease;
            min-height: 44px;
        }
        .faq-question:hover {
            background-color: #F8FAFC;
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 1.3rem;
            color: var(--primary);
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
            background-color: #F8FAFC;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 16px 20px 20px;
        }
        /* 移动端导航 */
        #mobileMenu {
            display: none;
        }
        #mobileMenu.open {
            display: block;
        }
        /* Hero 会员俱乐部 */
        .hero-membership {
            background-color: #0F172A;
            position: relative;
            overflow: hidden;
        }
        .hero-membership .bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(30,58,138,0.85) 50%, rgba(15,23,42,0.95) 100%);
            z-index: 1;
        }
        .hero-membership .bg-image {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }
        .hero-membership .hero-content {
            position: relative;
            z-index: 2;
        }
        /* 等级徽章 */
        .rank-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border-radius: 9999px;
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .rank-badge-gold {
            background: linear-gradient(135deg, #F59E0B, #D97706);
            color: #fff;
            border: 1px solid #FBBF24;
            box-shadow: 0 0 20px rgba(245,158,11,0.4);
        }
        .rank-badge-diamond {
            background: linear-gradient(135deg, #60A5FA, #2563EB);
            color: #fff;
            border: 1px solid #93C5FD;
            box-shadow: 0 0 20px rgba(37,99,235,0.4);
        }
        .rank-badge-master {
            background: linear-gradient(135deg, #10B981, #047857);
            color: #fff;
            border: 1px solid #34D399;
            box-shadow: 0 0 20px rgba(16,185,129,0.4);
        }
        /* 表格样式 */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        .data-table th {
            text-align: left;
            padding: 12px 16px;
            background-color: #F1F5F9;
            color: var(--text-secondary);
            font-weight: 600;
            border-bottom: 1px solid var(--border);
            white-space: nowrap;
        }
        .data-table td {
            padding: 12px 16px;
            border-bottom: 1px solid #E2E8F0;
            color: var(--text);
            white-space: nowrap;
        }
        .data-table tr {
            transition: background-color 0.15s ease;
        }
        .data-table tbody tr:hover {
            background-color: #F8FAFC;
        }
        .trend-up {
            color: var(--green);
            font-weight: 600;
        }
        .trend-down {
            color: #EF4444;
            font-weight: 600;
        }
        .trend-flat {
            color: #94A3B8;
            font-weight: 600;
        }
        /* 时间线 */
        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 28px;
            border-left: 2px solid #DBEAFE;
        }
        .timeline-item:last-child {
            border-left: 2px solid transparent;
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px #DBEAFE;
        }
        .timeline-item.live::before {
            background-color: var(--green);
            box-shadow: 0 0 0 2px #D1FAE5;
            animation: pulse-dot 1.4s ease-in-out infinite;
        }
        .timeline-item.warmup::before {
            background-color: var(--accent);
            box-shadow: 0 0 0 2px #FEF3C7;
        }
        /* 横滑轨 */
        .scroll-row {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .scroll-row::-webkit-scrollbar {
            height: 6px;
        }
        .scroll-row::-webkit-scrollbar-track {
            background: #E2E8F0;
            border-radius: 3px;
        }
        .scroll-row::-webkit-scrollbar-thumb {
            background: #94A3B8;
            border-radius: 3px;
        }
        .scroll-row > * {
            scroll-snap-align: start;
            flex-shrink: 0;
        }
        /* 页脚 */
        .footer-dark {
            background-color: #0F172A;
            color: #E2E8F0;
        }
        .footer-dark a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer-dark a:hover {
            color: #fff;
        }
        /* 隐藏滚动条 */
        .hide-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .hide-scrollbar::-webkit-scrollbar {
            display: none;
        }

/* roulang page: category2 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15,23,42,0.06);
            --shadow-hover: 0 8px 28px rgba(15,23,42,0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37,99,235,0.35);
            color: #fff;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }

        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }

        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245,158,11,0.4);
            color: #fff;
        }

        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }

        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }

        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }

        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }

        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }

        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }

        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
            background-color: #fff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
        }

        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15,23,42,0.12);
            border-color: var(--primary-light);
            color: var(--primary);
        }

        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .chip-live {
            background-color: var(--green);
            color: #fff;
            border-color: var(--green);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .chip-replay {
            background-color: #E0E7FF;
            color: #1E3A8A;
            border-color: #C7D2FE;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0.35); }
            50% { box-shadow: 0 0 0 6px rgba(16,185,129,0.1); }
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.2s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-desktop {
            display: none;
        }

        .nav-mobile-btn {
            display: none;
        }

        .footer-dark {
            background-color: #0F172A;
            color: #fff;
        }

        .footer-dark a {
            transition: color 0.2s ease;
        }

        .footer-dark a:hover {
            color: #fff;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: 9999px;
            background-color: #fff;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
            cursor: pointer;
            min-height: 40px;
        }

        .filter-tag:hover,
        .filter-tag.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .difficulty-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
        }

        .stat-block {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 100%);
            border: 1px solid #DBEAFE;
            border-radius: 16px;
            padding: 24px;
        }

        @media (min-width: 640px) {
            .container-main {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (max-width: 1023px) {
            .nav-desktop {
                display: none;
            }
            .nav-mobile-btn {
                display: inline-flex;
            }
        }

        @media (min-width: 1024px) {
            .nav-desktop {
                display: flex;
            }
            .section-pad {
                padding-top: 96px;
                padding-bottom: 96px;
            }
        }

        @media (max-width: 639px) {
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 13px;
                min-height: 36px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 28px rgba(15, 23, 42, 0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --radius-sm: 8px;
            --radius-full: 9999px;
        }
        html {
            scroll-behavior: smooth;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }
        .section-pad-sm {
            padding-top: 64px;
            padding-bottom: 64px;
        }
        .section-pad-xs {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        /* 导航 */
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }
        .nav-mobile-btn {
            display: none;
        }
        .mobile-menu {
            display: none;
            background-color: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px 24px;
            max-height: 70vh;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid #F1F5F9;
            font-size: 1.05rem;
        }
        .mobile-menu .nav-link:last-of-type {
            border-bottom: none;
        }
        .mobile-menu .chip-group-mobile {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            margin-top: 12px;
        }
        /* chip */
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: var(--radius-full);
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
        }
        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
        }
        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
        }
        .chip-warmup:hover {
            background-color: #D97706;
        }
        .chip-live {
            background-color: var(--green);
            color: #fff;
            animation: pulse-live 2s ease-in-out infinite;
        }
        .chip-live:hover {
            background-color: #059669;
        }
        .chip-replay {
            background-color: #E2E8F0;
            color: #1E293B;
        }
        .chip-replay:hover {
            background-color: #CBD5E1;
        }
        @keyframes pulse-live {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.3);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.08);
            }
        }
        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
            color: #fff;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }
        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
            color: #fff;
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }
        /* 卡片 */
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
            overflow: hidden;
        }
        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .card-hover-flat {
            transition: box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
        }
        .card-hover-flat:hover {
            box-shadow: var(--shadow);
            border-color: #BFDBFE;
            background-color: #FAFCFF;
        }
        /* badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: var(--radius-full);
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }
        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }
        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }
        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }
        .badge-red {
            background-color: #FEE2E2;
            color: #B91C1C;
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            font-size: 0.8rem;
            color: #94A3B8;
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        /* 筛选标签 */
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: var(--radius-full);
            padding: 8px 18px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            cursor: pointer;
            min-height: 40px;
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .filter-tag.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .filter-tag:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        /* 赛事卡片 */
        .tournament-card {
            display: flex;
            flex-direction: column;
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .tournament-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .tournament-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .tournament-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .tournament-card:hover .card-img img {
            transform: scale(1.03);
        }
        .tournament-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        /* 热门对阵横卡 */
        .matchup-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 20px;
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .matchup-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary-light);
        }
        /* 数据速览 */
        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        /* 订阅区块 */
        .subscribe-box {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 60%, #F0FDF4 100%);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius);
            padding: 40px 32px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(37, 99, 235, 0.08);
            pointer-events: none;
        }
        .subscribe-box::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.08);
            pointer-events: none;
        }
        /* 相关资讯 */
        .news-link-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 16px 20px;
            transition: all 0.2s ease;
            text-decoration: none;
        }
        .news-link-card:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
            background-color: #FAFCFF;
        }
        /* 页脚 */
        .footer-dark {
            background-color: #0F172A;
            color: #fff;
        }
        .footer-dark a {
            transition: color 0.2s ease;
        }
        .footer-dark a:hover {
            color: #fff;
        }
        /* 响应式断点 */
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none;
            }
            .nav-mobile-btn {
                display: inline-flex;
            }
            .section-pad {
                padding-top: 72px;
                padding-bottom: 72px;
            }
        }
        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-pad-sm {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .tournament-card .card-img {
                height: 150px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .subscribe-box {
                padding: 28px 20px;
            }
            .matchup-card {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 28px rgba(15, 23, 42, 0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        /* 导航链接 */
        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            padding: 4px 0;
            white-space: nowrap;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        /* 按钮三态 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }

        /* 卡片 */
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        /* badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }
        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }
        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }
        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }
        .badge-red {
            background-color: #FEE2E2;
            color: #B91C1C;
        }

        /* chip 活动阶段 */
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
        }
        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
        }
        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
        }
        .chip-live {
            background-color: var(--green);
            color: #fff;
            animation: pulse-live 2s ease-in-out infinite;
        }
        .chip-replay {
            background-color: #E0E7FF;
            color: #1E40AF;
        }

        @keyframes pulse-live {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.35);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: #94A3B8;
            user-select: none;
        }
        .breadcrumb-current {
            color: var(--text);
            font-weight: 600;
        }

        /* 筛选标签 */
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 8px 18px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            min-height: 40px;
        }
        .filter-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .filter-tag:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .filter-tag.active {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* 页脚 */
        .footer-dark {
            background-color: #0F172A;
            color: #E2E8F0;
        }
        .footer-dark a {
            transition: color 0.2s ease;
        }
        .footer-dark a:hover {
            color: #fff;
        }

        /* 表格样式 */
        .table-rank {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .table-rank th {
            text-align: left;
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            background-color: #F8FAFC;
        }
        .table-rank td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
        }
        .table-rank tr:last-child td {
            border-bottom: none;
        }
        .table-rank tr:hover td {
            background-color: #F8FAFC;
        }

        /* 移动端菜单 */
        .mobile-menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .mobile-menu.open {
            max-height: 600px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .table-rank {
                font-size: 0.85rem;
            }
            .table-rank th,
            .table-rank td {
                padding: 10px 10px;
            }
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                display: none !important;
            }
            .nav-mobile-btn {
                display: inline-flex !important;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 28px rgba(15, 23, 42, 0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }

        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }

        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        /* 按钮三态 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }

        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }

        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
        }

        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }

        /* 卡片 */
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }

        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        /* badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }

        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }

        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }

        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }

        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }

        .badge-red {
            background-color: #FEE2E2;
            color: #B91C1C;
        }

        /* chip */
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
        }

        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
        }

        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
        }

        .chip-warmup:hover {
            background-color: #D97706;
        }

        .chip-live {
            background-color: var(--green);
            color: #fff;
            animation: chip-pulse 2s ease-in-out infinite;
        }

        .chip-live:hover {
            background-color: #059669;
        }

        .chip-replay {
            background-color: #E0E7FF;
            color: #1D4ED8;
        }

        .chip-replay:hover {
            background-color: #C7D2FE;
        }

        @keyframes chip-pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
            }
        }

        /* 导航 */
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: #475569;
            padding: 6px 2px;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.25s ease;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link.active::after {
            width: 100%;
        }

        /* 移动端菜单 */
        .nav-mobile-btn {
            display: none;
        }

        @media (max-width: 1023px) {
            .nav-desktop {
                display: none !important;
            }
            .nav-mobile-btn {
                display: flex;
            }
        }

        @media (min-width: 1024px) {
            .nav-mobile-btn {
                display: none !important;
            }
            .nav-desktop {
                display: flex !important;
            }
        }

        .mobile-menu {
            display: none;
        }

        .mobile-menu.open {
            display: block;
        }

        /* 回放卡片播放按钮 */
        .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.45), rgba(15, 23, 42, 0.05) 60%);
            opacity: 0;
            transition: opacity 0.25s ease;
        }

        .card-base:hover .play-overlay {
            opacity: 1;
        }

        .play-btn {
            width: 56px;
            height: 56px;
            border-radius: 9999px;
            background-color: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.25);
            transition: transform 0.2s ease, background-color 0.2s ease;
        }

        .play-btn:hover {
            transform: scale(1.1);
            background-color: #fff;
        }

        /* 筛选标签按钮 */
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 8px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            color: #475569;
            background-color: #fff;
            border: 1px solid var(--border);
            transition: all 0.2s ease;
            cursor: pointer;
            min-height: 40px;
            white-space: nowrap;
            text-decoration: none;
        }

        .filter-tag:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            background-color: #F0F7FF;
        }

        .filter-tag:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .filter-tag.active-filter {
            background-color: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-tag.active-filter:hover {
            background-color: var(--primary-dark);
        }

        /* 面包屑 */
        .breadcrumb-link {
            color: #64748B;
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .breadcrumb-link:hover {
            color: var(--primary);
        }

        .breadcrumb-sep {
            color: #94A3B8;
            font-size: 14px;
            margin: 0 8px;
        }

        .breadcrumb-current {
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
        }

        /* 排名列表 */
        .rank-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 16px;
            border-radius: 12px;
            transition: background-color 0.2s ease;
        }

        .rank-row:hover {
            background-color: #F0F7FF;
        }

        .rank-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .rank-1 {
            background-color: #FEF3C7;
            color: #B45309;
        }

        .rank-2 {
            background-color: #E2E8F0;
            color: #475569;
        }

        .rank-3 {
            background-color: #FDE8D7;
            color: #B45309;
        }

        .rank-4,
        .rank-5 {
            background-color: #F1F5F9;
            color: #64748B;
        }

        /* 页脚 */
        .footer-dark {
            background-color: #0F172A;
            color: #fff;
        }

        .footer-dark .footer-link {
            color: #94A3B8;
            transition: color 0.2s ease;
        }

        .footer-dark .footer-link:hover {
            color: #fff;
        }

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* 时间轴精简 */
        .replay-timeline-bar {
            position: relative;
            height: 4px;
            border-radius: 9999px;
            background-color: #E2E8F0;
            overflow: hidden;
        }

        .replay-timeline-fill {
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            border-radius: 9999px;
            background-color: var(--primary);
        }

        /* 响应式容器 */
        @media (max-width: 639px) {
            .hero-headline {
                font-size: 28px !important;
                line-height: 1.3;
            }
            .hero-desc {
                font-size: 15px !important;
            }
            .btn-primary,
            .btn-secondary,
            .btn-cta {
                width: 100%;
                justify-content: center;
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }

        @media (min-width: 640px) and (max-width: 1023px) {
            .section-pad {
                padding-top: 72px;
                padding-bottom: 72px;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15,23,42,0.06);
            --shadow-hover: 0 8px 28px rgba(15,23,42,0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        input, textarea, select {
            font-family: inherit;
            font-size: 1rem;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-pad {
            padding-top: 96px;
            padding-bottom: 96px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37,99,235,0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245,158,11,0.4);
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue { background-color: #DBEAFE; color: #1D4ED8; }
        .badge-green { background-color: #D1FAE5; color: #047857; }
        .badge-amber { background-color: #FEF3C7; color: #B45309; }
        .badge-gray { background-color: #F1F5F9; color: #475569; }
        .badge-red { background-color: #FEE2E2; color: #B91C1C; }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
        }
        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15,23,42,0.12);
        }
        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .chip-warmup { background-color: #FEF3C7; color: #B45309; }
        .chip-live { background-color: #D1FAE5; color: #047857; animation: pulse-soft 2s infinite; }
        .chip-replay { background-color: #E0E7FF; color: #1D4ED8; }
        @keyframes pulse-soft {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.75; }
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: #334155;
            padding: 6px 0;
            transition: color 0.2s ease;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px;
            transition: width 0.2s ease;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .table-rank {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 12px;
        }
        .table-rank thead th {
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-secondary);
            text-align: left;
            padding: 4px 16px;
            font-weight: 600;
        }
        .table-rank tbody tr {
            background: var(--card);
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(15,23,42,0.04);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }
        .table-rank tbody tr:hover {
            box-shadow: 0 8px 22px rgba(15,23,42,0.12);
            transform: translateY(-2px);
        }
        .table-rank tbody td {
            padding: 16px;
            font-size: 15px;
            vertical-align: middle;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .table-rank tbody td:first-child {
            border-left: 1px solid var(--border);
            border-top-left-radius: 12px;
            border-bottom-left-radius: 12px;
        }
        .table-rank tbody td:last-child {
            border-right: 1px solid var(--border);
            border-top-right-radius: 12px;
            border-bottom-right-radius: 12px;
        }
        .trend-up { color: var(--green); font-weight: 600; }
        .trend-down { color: #DC2626; font-weight: 600; }
        .trend-flat { color: var(--text-secondary); font-weight: 600; }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #CBD5E1;
            border-radius: 8px;
            background-color: #fff;
            font-size: 15px;
            color: var(--text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
        }
        .footer-dark {
            background-color: #0F172A;
            color: #fff;
        }
        .footer-dark a {
            transition: color 0.2s ease;
        }
        .footer-dark a:hover {
            color: #fff;
        }
        @media (max-width: 1024px) {
            .nav-desktop { display: none !important; }
            .nav-mobile-btn { display: inline-flex !important; }
            .section-pad { padding-top: 72px; padding-bottom: 72px; }
        }
        @media (max-width: 640px) {
            .container-main { padding-left: 16px; padding-right: 16px; }
            .section-pad { padding-top: 56px; padding-bottom: 56px; }
            .table-rank thead { display: none; }
            .table-rank tbody tr { display: block; margin-bottom: 16px; box-shadow: 0 2px 10px rgba(15,23,42,0.04); }
            .table-rank tbody td { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border: none; border-bottom: 1px solid var(--border); }
            .table-rank tbody td:first-child { border-top-left-radius: 12px; border-top-right-radius: 12px; border-bottom-left-radius: 0; }
            .table-rank tbody td:last-child { border-bottom-left-radius: 12px; border-bottom-right-radius: 12px; border-bottom: none; }
            .table-rank tbody td::before { content: attr(data-label); font-weight: 600; color: var(--text-secondary); font-size: 13px; }
        }
        .mobile-menu {
            display: none;
            background-color: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 8px 20px rgba(15,23,42,0.08);
        }
        .mobile-menu.open {
            display: block;
        }

/* roulang page: category5 */
:root {
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --primary-light: #3B82F6;
            --accent: #F59E0B;
            --green: #10B981;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #0F172A;
            --text-secondary: #64748B;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 8px 28px rgba(15, 23, 42, 0.12);
            --font: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
        }

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

        body {
            font-family: var(--font);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            margin: 0;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
            color: var(--text);
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
            text-decoration: none;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            background-color: var(--primary-dark);
        }
        .btn-primary:active {
            transform: scale(0.98);
            background-color: #1e40af;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: #fff;
            color: var(--text);
            font-weight: 600;
            border-radius: 8px;
            padding: 12px 24px;
            font-size: 1rem;
            line-height: 1.5;
            border: 1px solid #CBD5E1;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, background-color 0.2s ease;
            min-height: 44px;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
            background-color: #E8F0FE;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 8px;
            padding: 14px 28px;
            font-size: 1.05rem;
            line-height: 1.5;
            transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
            min-height: 44px;
        }
        .btn-cta:hover {
            background-color: #D97706;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
        }
        .btn-cta:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-cta:active {
            transform: scale(0.98);
            background-color: #B45309;
        }

        /* 卡片 */
        .card-base {
            background-color: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
        }
        .card-base:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }

        /* badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border-radius: 9999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .badge-blue {
            background-color: #DBEAFE;
            color: #1D4ED8;
        }
        .badge-green {
            background-color: #D1FAE5;
            color: #047857;
        }
        .badge-amber {
            background-color: #FEF3C7;
            color: #B45309;
        }
        .badge-gray {
            background-color: #F1F5F9;
            color: #475569;
        }

        /* chip */
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 9999px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
            cursor: pointer;
            min-height: 36px;
            text-decoration: none;
            border: 1px solid transparent;
        }
        .chip:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
        }
        .chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .chip-warmup {
            background-color: var(--accent);
            color: #fff;
        }
        .chip-live {
            background-color: var(--green);
            color: #fff;
            animation: pulse-live 2s ease-in-out infinite;
        }
        .chip-replay {
            background-color: #E2E8F0;
            color: #1E293B;
        }
        .chip-filter {
            background-color: #fff;
            color: var(--text-secondary);
            border-color: var(--border);
        }
        .chip-filter:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: #F0F7FF;
        }
        .chip-filter.chip-active {
            background-color: #DBEAFE;
            color: #1D4ED8;
            border-color: #BFDBFE;
        }

        @keyframes pulse-live {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.35);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
            }
        }

        /* 导航 */
        .nav-desktop .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            padding: 8px 0;
            transition: color 0.2s ease;
        }
        .nav-desktop .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: width 0.25s ease;
            border-radius: 2px;
        }
        .nav-desktop .nav-link:hover {
            color: var(--primary);
        }
        .nav-desktop .nav-link:hover::after {
            width: 100%;
        }
        .nav-desktop .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-desktop .nav-link.active::after {
            width: 100%;
        }
        .nav-mobile-btn {
            display: none;
        }

        /* 移动端菜单抽屉 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 300px;
            max-width: 85vw;
            background: #fff;
            z-index: 100;
            box-shadow: -8px 0 32px rgba(15, 23, 42, 0.15);
            padding: 20px 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.3s ease;
        }
        .mobile-menu.open {
            transform: translateX(0);
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.45);
            z-index: 90;
            backdrop-filter: blur(2px);
        }
        .mobile-menu-overlay.open {
            display: block;
        }
        .mobile-menu .mobile-nav-link {
            display: block;
            padding: 12px 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            border-bottom: 1px solid #F1F5F9;
            transition: color 0.2s ease;
        }
        .mobile-menu .mobile-nav-link:hover {
            color: var(--primary);
        }
        .mobile-menu .mobile-nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        /* Hero 搜索框 */
        .hero-search-input {
            width: 100%;
            max-width: 560px;
            height: 56px;
            border-radius: 12px;
            border: 2px solid #E2E8F0;
            padding: 0 20px;
            font-size: 1rem;
            background: #fff;
            color: var(--text);
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .hero-search-input::placeholder {
            color: #94A3B8;
        }
        .hero-search-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
        }
        .hero-search-button {
            height: 56px;
            padding: 0 28px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 12px;
            white-space: nowrap;
            transition: background-color 0.2s ease, transform 0.2s ease;
        }
        .hero-search-button:hover {
            background-color: var(--primary-dark);
        }
        .hero-search-button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .hero-search-button:active {
            transform: scale(0.97);
        }

        /* 快讯滚动 */
        .ticker-wrap {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            overflow: hidden;
            padding: 14px 0;
        }
        .ticker-track {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            animation: ticker-scroll 30s linear infinite;
        }
        .ticker-wrap:hover .ticker-track {
            animation-play-state: paused;
        }
        @keyframes ticker-scroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }
        .ticker-item {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-right: 40px;
            font-size: 0.9rem;
            color: #475569;
        }
        .ticker-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--green);
            flex-shrink: 0;
        }

        /* 新闻列表 */
        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid #EEF2F7;
            transition: background-color 0.2s ease, padding-left 0.2s ease;
            border-radius: 8px;
        }
        .news-list-item:hover {
            background-color: #F8FAFC;
            padding-left: 12px;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-thumb {
            width: 140px;
            height: 88px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-meta {
            font-size: 0.82rem;
            color: #94A3B8;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* 深度专题 */
        .feature-card-lg {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 300px;
            display: flex;
            align-items: flex-end;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.85) 0%, rgba(15, 23, 42, 0.25) 50%, rgba(15, 23, 42, 0.05) 100%);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .feature-card-lg:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card-lg img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: -1;
        }
        .feature-card-content {
            padding: 28px 24px;
            z-index: 1;
            color: #fff;
        }

        /* 数据速览 */
        .stat-block {
            text-align: center;
            padding: 24px 16px;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }
        .stat-block:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* 订阅 CTA */
        .cta-newsletter {
            background: linear-gradient(135deg, #DBEAFE 0%, #EFF6FF 50%, #F0FDF4 100%);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius);
            padding: 48px 32px;
            text-align: center;
        }
        .cta-newsletter input[type="email"] {
            width: 100%;
            max-width: 360px;
            height: 48px;
            border-radius: 10px;
            border: 1.5px solid #CBD5E1;
            padding: 0 18px;
            font-size: 1rem;
            background: #fff;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .cta-newsletter input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
        }

        /* 页脚 */
        .footer-dark {
            background-color: #0F172A;
            color: #CBD5E1;
        }
        .footer-dark h3 {
            color: #fff;
        }
        .footer-dark a {
            color: #94A3B8;
            transition: color 0.2s ease;
        }
        .footer-dark a:hover {
            color: #fff;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none !important;
            }
            .nav-mobile-btn {
                display: inline-flex !important;
            }
            .section-pad {
                padding-top: 64px;
                padding-bottom: 64px;
            }
        }

        @media (max-width: 640px) {
            .container-main {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .news-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-thumb {
                width: 100%;
                height: 180px;
            }
            .hero-search-input {
                height: 48px;
                font-size: 0.95rem;
            }
            .hero-search-button {
                height: 48px;
                padding: 0 20px;
                font-size: 0.9rem;
            }
            .cta-newsletter {
                padding: 32px 20px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .feature-card-lg {
                min-height: 220px;
            }
        }

        @media (max-width: 768px) {
            .news-list-item {
                padding-left: 0 !important;
            }
            .news-list-item:hover {
                padding-left: 0 !important;
                background-color: transparent;
            }
        }