/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #ffffff;
            --bg-secondary: #f5f8fc;
            --bg-soft: #f1f5f9;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-card-hover: 0 6px 16px rgba(15, 23, 42, .1), 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-nav: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .06);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 350ms ease;
        }

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

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 32px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding: 0 40px;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: height var(--transition-slow), opacity var(--transition-slow), padding var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .brand-row {
            height: 0;
            opacity: 0;
            padding: 0;
            pointer-events: none;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }

        .brand-actions a {
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .brand-actions a:hover {
            color: var(--primary);
        }

        .brand-actions .subscribe-link {
            color: var(--primary);
            font-weight: 600;
        }

        .brand-actions .subscribe-link:hover {
            color: var(--primary-dark);
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 44px;
            border-top: 1px solid var(--border-light);
            transition: height var(--transition-slow), border-color var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .channel-row {
            height: 56px;
            border-top: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-base);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .site-header.scrolled .nav-links a.active::after {
            bottom: 0;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text-dark);
            font-size: 20px;
            transition: background var(--transition-base);
            flex-shrink: 0;
        }

        .hamburger:hover {
            background: var(--bg-soft);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 12px 0 16px;
            box-shadow: var(--shadow-card);
        }

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

        .mobile-menu .nav-links {
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            width: 100%;
        }

        .mobile-menu .nav-links a {
            display: block;
            padding: 12px 20px;
            font-size: 16px;
            border-radius: 0;
        }

        .mobile-menu .nav-links a:hover {
            background: var(--bg-secondary);
        }

        .mobile-menu .nav-links a.active {
            background: var(--bg-secondary);
            color: var(--primary);
        }

        .mobile-menu .nav-links a.active::after {
            display: none;
        }

        @media (max-width: 767px) {
            .site-header .channel-row {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .brand-row {
                height: 60px;
            }

            .site-header.scrolled .brand-row {
                height: 60px;
                opacity: 1;
                pointer-events: auto;
            }

            .site-header.scrolled .channel-row {
                height: auto;
            }

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

        /* ========== Hero ========== */
        .hero-section {
            padding: 48px 0 56px;
            background: linear-gradient(180deg, #ffffff 0%, #f5f8fc 100%);
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .hero-section {
                padding: 64px 0 72px;
            }
        }

        @media (min-width: 1024px) {
            .hero-section {
                padding: 80px 0 88px;
            }
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1.2fr 1fr;
                gap: 56px;
            }
        }

        .hero-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 36px;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 42px;
            }
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 28px;
            max-width: 560px;
        }

        @media (min-width: 768px) {
            .hero-subtitle {
                font-size: 18px;
            }
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }

        .hero-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card-hover);
            aspect-ratio: 16 / 10;
            object-fit: cover;
            width: 100%;
        }

        .hero-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-roadmap {
            margin-top: 48px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 28px;
            border: 1px solid var(--border-light);
        }

        .hero-roadmap-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-roadmap-title i {
            color: var(--primary);
            font-size: 16px;
        }

        .roadmap-track {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 12px;
            position: relative;
        }

        .roadmap-track::before {
            content: '';
            position: absolute;
            top: 14px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border-light);
            z-index: 0;
        }

        .roadmap-node {
            position: relative;
            z-index: 1;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .roadmap-dot {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #fff;
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-muted);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
        }

        .roadmap-node.completed .roadmap-dot {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .roadmap-node.current .roadmap-dot {
            background: #fff;
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 0 0 4px rgba(249, 115, 22, .15);
        }

        .roadmap-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.4;
        }

        .roadmap-node.current .roadmap-label {
            color: var(--accent-dark);
            font-weight: 600;
        }

        @media (max-width: 767px) {
            .roadmap-track {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }

            .roadmap-track::before {
                display: none;
            }

            .hero-roadmap {
                padding: 20px;
                overflow-x: auto;
            }

            .roadmap-track {
                min-width: 420px;
            }
        }

        @media (max-width: 479px) {
            .roadmap-track {
                min-width: 380px;
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .hero-subscribe {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
            align-items: center;
        }

        .hero-subscribe .subscribe-input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: 14px;
            outline: none;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .hero-subscribe .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            white-space: nowrap;
            line-height: 1.4;
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .3);
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(249, 115, 22, .3);
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

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

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-text {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-text:hover {
            color: var(--accent);
        }

        .btn-text i {
            font-size: 12px;
            transition: transform var(--transition-base);
        }

        .btn-text:hover i {
            transform: translateX(3px);
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 56px 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 72px 0;
            }
        }

        @media (min-width: 1024px) {
            .section {
                padding: 80px 0;
            }
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: 36px;
            max-width: 680px;
        }

        .section-header.centered {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(37, 99, 235, .08);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: .5px;
        }

        .section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 30px;
            }
        }

        @media (min-width: 1024px) {
            .section-title {
                font-size: 32px;
            }
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }

        /* ========== 卡片 ========== */
        .card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 28px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(37, 99, 235, .2);
        }

        .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(37, 99, 235, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* ========== 数据卡 ========== */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 8px;
            font-variant-numeric: tabular-nums;
        }

        .stat-number .stat-suffix {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-muted);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
            white-space: nowrap;
        }

        .badge-blue {
            background: rgba(37, 99, 235, .1);
            color: var(--primary);
        }

        .badge-orange {
            background: rgba(249, 115, 22, .12);
            color: var(--accent-dark);
        }

        .badge-green {
            background: rgba(34, 197, 94, .12);
            color: #16a34a;
        }

        .badge-gray {
            background: var(--bg-soft);
            color: var(--text-muted);
        }

        /* ========== 新闻卡片 ========== */
        .news-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition-base);
        }

        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(37, 99, 235, .25);
            transform: translateY(-2px);
        }

        .news-date {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-date i {
            font-size: 12px;
            color: var(--primary);
        }

        .news-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.45;
        }

        .news-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* ========== 赛事卡片 ========== */
        .event-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .event-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .event-card .event-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .event-card .event-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .event-card:hover .event-cover img {
            transform: scale(1.04);
        }

        .event-card .event-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .event-card .event-name {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
        }

        .event-card .event-meta {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .event-card .event-meta i {
            color: var(--primary);
            font-size: 12px;
        }

        /* ========== 战队Logo占位 ========== */
        .team-logo-placeholder {
            width: 72px;
            height: 72px;
            border-radius: 16px;
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--text-light);
            transition: all var(--transition-base);
            flex-shrink: 0;
            user-select: none;
        }

        .team-logo-placeholder:hover {
            background: #fff;
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        /* ========== 图片占位 ========== */
        .gallery-placeholder {
            aspect-ratio: 4 / 3;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all var(--transition-base);
        }

        .gallery-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .gallery-placeholder:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card-hover);
        }

        .gallery-placeholder:hover img {
            transform: scale(1.05);
        }

        .gallery-placeholder .gallery-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, .45);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: opacity var(--transition-base);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }

        .gallery-placeholder:hover .gallery-overlay {
            opacity: 1;
        }

        /* ========== 表单 ========== */
        .form-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: 15px;
            outline: none;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            background: #fff;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
        }

        .form-input::placeholder {
            color: #94a3b8;
            font-size: 14px;
        }

        /* ========== 证言卡 ========== */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all var(--transition-base);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text-light);
            flex-shrink: 0;
            border: 2px solid var(--border-light);
        }

        .testimonial-quote {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark);
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .testimonial-role {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== 指标条 ========== */
        .metric-bar {
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .metric-bar .metric-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .metric-bar .metric-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
        }

        .metric-bar .progress-track {
            height: 8px;
            background: var(--bg-soft);
            border-radius: 4px;
            overflow: hidden;
        }

        .metric-bar .progress-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            transition: width var(--transition-slow);
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: center;
            border: 1px solid var(--border-light);
        }

        .cta-section .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .cta-section .cta-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-section .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-section .cta-form .form-input {
            flex: 1;
            min-width: 240px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--text-dark);
            color: #cbd5e1;
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        @media (min-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 48px;
            }
        }

        .site-footer .footer-brand {
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .site-footer .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94a3b8;
            max-width: 360px;
        }

        .site-footer .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
        }

        .site-footer .footer-links a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

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

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748b;
        }

        .site-footer .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

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

        /* ========== 响应式补充 ========== */
        @media (max-width: 767px) {
            .hero-title {
                font-size: 28px;
            }

            .section-title {
                font-size: 24px;
            }

            .stat-number {
                font-size: 32px;
            }

            .card {
                padding: 22px;
            }

            .news-card {
                padding: 20px;
            }

            .event-card .event-body {
                padding: 16px 18px 20px;
            }

            .cta-section {
                padding: 36px 20px;
            }

            .form-card {
                padding: 24px 20px;
            }

            .btn-lg {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

        @media (max-width: 479px) {
            .hero-cta-group {
                flex-direction: column;
            }

            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-subscribe {
                flex-direction: column;
            }

            .hero-subscribe .subscribe-input {
                width: 100%;
                min-width: 0;
            }

            .hero-subscribe .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #ffffff;
            --bg-secondary: #f5f8fc;
            --bg-soft: #f1f5f9;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-card-hover: 0 6px 16px rgba(15, 23, 42, .1), 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-nav: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .06);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 350ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg);
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 40px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: height var(--transition-slow), opacity var(--transition-slow), padding var(--transition-slow);
            overflow: hidden;
        }
        .site-header.scrolled .brand-row {
            height: 0;
            opacity: 0;
            padding: 0;
            pointer-events: none;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-dark);
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 14px;
        }
        .brand-actions a {
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .brand-actions a:hover {
            color: var(--primary);
        }
        .brand-actions .subscribe-link {
            color: var(--primary);
            font-weight: 600;
        }
        .brand-actions .subscribe-link:hover {
            color: var(--primary-dark);
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 44px;
            border-top: 1px solid var(--border-light);
            transition: height var(--transition-slow), border-color var(--transition-slow);
            overflow: hidden;
        }
        .site-header.scrolled .channel-row {
            height: 56px;
            border-top: none;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links li {
            list-style: none;
        }
        .nav-links a {
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            display: inline-block;
            transition: color var(--transition-base);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .site-header.scrolled .nav-links a.active::after {
            bottom: 0;
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            font-size: 22px;
            border-radius: var(--radius-sm);
            transition: background-color var(--transition-base);
        }
        .hamburger:hover {
            background-color: var(--bg-soft);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0;
            border-top: 1px solid var(--border-light);
            padding: 8px 0;
        }
        .mobile-menu a {
            display: block;
            padding: 12px 20px;
            color: var(--text-muted);
            font-weight: 500;
            font-size: 15px;
            transition: background-color var(--transition-base), color var(--transition-base);
        }
        .mobile-menu a:hover {
            background-color: var(--bg-soft);
            color: var(--primary);
        }
        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .brand-actions {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
            .channel-row {
                display: none;
            }
            .site-header.scrolled .channel-row {
                display: none;
            }
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }
        /* 分类H1区 */
        .category-header {
            padding: 48px 0 32px;
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
        }
        .category-header h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin: 0 0 8px;
        }
        .category-header p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }
        @media (max-width: 768px) {
            .category-header {
                padding: 32px 0 24px;
            }
            .category-header h1 {
                font-size: 28px;
            }
        }
        /* 板块基础 */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 720px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 24px;
            }
        }
        /* 卡片 */
        .card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .card-body {
            padding: 24px;
        }
        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-fast);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.35);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
        }
        .btn-primary:hover {
            background-color: var(--accent);
            border-color: var(--accent);
        }
        .btn-outline {
            background-color: #ffffff;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #ffffff;
        }
        .btn-accent:hover {
            background-color: var(--accent-dark);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
        }
        /* 徽章 */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.5;
        }
        .badge-blue {
            background-color: #dbeafe;
            color: var(--primary-dark);
        }
        .badge-orange {
            background-color: #ffedd5;
            color: var(--accent-dark);
        }
        .badge-green {
            background-color: #dcfce7;
            color: #16a34a;
        }
        .badge-gray {
            background-color: var(--bg-soft);
            color: var(--text-muted);
        }
        /* 新闻卡片 */
        .news-card {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .news-date {
            flex-shrink: 0;
            width: 64px;
            height: 64px;
            background: var(--bg-soft);
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }
        .news-date .day {
            font-size: 24px;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-date .month {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.4;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 12px;
        }
        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-base);
            cursor: pointer;
        }
        .news-link:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .news-card {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
            }
            .news-date {
                width: 52px;
                height: 52px;
                flex-direction: row;
                gap: 4px;
            }
            .news-date .day {
                font-size: 20px;
            }
            .news-date .month {
                font-size: 12px;
            }
        }
        /* 排名列表 */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: #ffffff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .rank-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary);
        }
        .rank-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-number {
            background: #fef3c7;
            color: #d97706;
        }
        .rank-item:nth-child(2) .rank-number {
            background: #e5e7eb;
            color: #4b5563;
        }
        .rank-item:nth-child(3) .rank-number {
            background: #fed7aa;
            color: #c2410c;
        }
        .rank-team {
            flex: 1;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-dark);
        }
        .rank-score {
            font-weight: 700;
            font-size: 18px;
            color: var(--primary);
        }
        /* 图集 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .gallery-item {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            cursor: pointer;
            aspect-ratio: 4/3;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .gallery-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .gallery-item .gallery-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.75), transparent);
            color: #ffffff;
            font-size: 14px;
            font-weight: 500;
        }
        @media (max-width: 1024px) {
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .gallery-grid {
                grid-template-columns: 1fr;
            }
        }
        /* 表单 */
        .form-card {
            background: var(--bg-soft);
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-light);
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: 15px;
            color: var(--text-dark);
            background: #ffffff;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            outline: none;
        }
        .form-input::placeholder {
            color: #94a3b8;
        }
        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }
        /* CTA */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
        }
        .cta-section p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }
        /* 攻略小卡 */
        .guide-mini-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }
        .guide-mini-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary);
        }
        .guide-mini-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .guide-mini-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0 0 10px;
        }
        .guide-mini-card .guide-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            transition: color var(--transition-base);
        }
        .guide-mini-card .guide-link:hover {
            color: var(--accent);
        }
        /* 页脚 */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
            margin-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94a3b8;
            margin: 0;
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 14px;
            color: #cbd5e1;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid #1e293b;
            font-size: 13px;
            color: #94a3b8;
        }
        .footer-bottom a {
            color: #cbd5e1;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #ffffff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer {
                margin-top: 40px;
                padding: 32px 0 20px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #ffffff;
            --bg-secondary: #f5f8fc;
            --bg-soft: #f1f5f9;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-card-hover: 0 6px 16px rgba(15, 23, 42, .1), 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-nav: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .06);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 350ms ease;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: height var(--transition-slow), opacity var(--transition-slow), padding var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .brand-row {
            height: 0;
            opacity: 0;
            padding: 0;
            pointer-events: none;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }

        .brand-actions a {
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .brand-actions a:hover {
            color: var(--primary);
        }

        .brand-actions .subscribe-link {
            color: var(--primary);
            font-weight: 600;
        }

        .brand-actions .subscribe-link:hover {
            color: var(--primary-dark);
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 44px;
            border-top: 1px solid var(--border-light);
            transition: height var(--transition-slow), border-color var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .channel-row {
            height: 56px;
            border-top: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-base);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .site-header.scrolled .nav-links a.active::after {
            bottom: 0;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-dark);
            background: var(--bg-soft);
            font-size: 20px;
            transition: background var(--transition-fast);
        }

        .hamburger:hover {
            background: var(--border);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            list-style: none;
            padding: 8px 0 16px;
            border-top: 1px solid var(--border-light);
            background: #fff;
        }

        .mobile-menu li a {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .mobile-menu li a:hover {
            color: var(--primary);
        }

        .mobile-menu li a.active {
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .brand-actions {
                display: none;
            }
            .channel-row {
                justify-content: space-between;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu.open {
                display: flex;
            }
        }

        /* ========== 页面标题区 ========== */
        .page-hero {
            padding: 40px 0 32px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--border);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        .page-hero h1 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .page-hero .lead {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 640px;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 56px 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-heading {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            margin-bottom: 28px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-heading h2 {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
        }

        .section-heading .heading-accent {
            display: inline-block;
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            margin-right: 10px;
            vertical-align: middle;
        }

        .section-heading .sub-text {
            font-size: 14px;
            color: var(--text-light);
        }

        /* ========== 赛程列表 ========== */
        .match-table {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
        }

        .match-row {
            display: grid;
            grid-template-columns: 90px 1fr 1fr 100px 1fr 40px;
            align-items: center;
            padding: 16px 20px;
            gap: 12px;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition-base);
        }

        .match-row:last-child {
            border-bottom: none;
        }

        .match-row:hover {
            background: var(--bg-secondary);
        }

        .match-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .match-event {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .match-teams {
            font-size: 14px;
            color: var(--text-muted);
        }

        .match-teams .vs {
            color: var(--accent);
            font-weight: 700;
            margin: 0 6px;
        }

        .match-status {
            font-size: 13px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            text-align: center;
            white-space: nowrap;
        }

        .status-live {
            background: #fef3c7;
            color: #b45309;
        }

        .status-done {
            background: #dcfce7;
            color: #166534;
        }

        .status-upcoming {
            background: #dbeafe;
            color: #1d4ed8;
        }

        .match-detail {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
        }

        .match-score {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            white-space: nowrap;
        }

        .match-score .dash {
            color: var(--border);
            font-weight: 400;
        }

        .row-more {
            text-align: center;
        }

        .row-more a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-soft);
            color: var(--text-muted);
            font-size: 13px;
            transition: all var(--transition-base);
        }

        .row-more a:hover {
            background: var(--primary);
            color: #fff;
        }

        @media (max-width: 768px) {
            .match-row {
                grid-template-columns: 1fr 1fr;
                padding: 14px 16px;
                gap: 8px;
            }
            .match-date {
                grid-column: 1 / -1;
            }
            .match-event {
                grid-column: 1 / -1;
            }
            .match-teams {
                grid-column: 1 / 2;
            }
            .match-score {
                grid-column: 2 / 3;
                text-align: right;
            }
            .match-status {
                grid-column: 1 / 2;
                justify-self: start;
            }
            .match-detail {
                grid-column: 2 / 3;
                text-align: right;
            }
            .row-more {
                grid-column: 1 / -1;
                text-align: right;
            }
        }

        /* ========== 数据统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--primary-light);
        }

        .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            background: var(--bg-soft);
            color: var(--primary);
        }

        .stat-value {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 992px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 赛事回顾 ========== */
        .review-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }

        .review-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .review-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .review-body {
            padding: 18px 20px;
        }

        .review-body h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .review-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .review-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-base);
        }

        .review-link:hover {
            color: var(--accent);
        }

        @media (max-width: 992px) {
            .review-list {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .review-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 16px 20px;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            gap: 12px;
            transition: color var(--transition-base);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 20px 16px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-secondary);
            padding: 48px 0;
        }

        .cta-inner {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            border: 1px solid var(--border-light);
        }

        .cta-info h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .cta-info p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 460px;
        }

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .cta-btn:hover {
            background: var(--accent);
            transform: translateY(-1px);
            box-shadow: var(--shadow-card);
        }

        .cta-btn:active {
            transform: scale(0.97);
            background: var(--accent-dark);
        }

        .cta-btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .4);
            outline-offset: 2px;
        }

        @media (max-width: 640px) {
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }
        }

        /* ========== 底部说明 ========== */
        .update-note {
            padding: 24px 0 40px;
            text-align: center;
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94a3b8;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 14px;
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #ffffff;
            --bg-secondary: #f5f8fc;
            --bg-soft: #f1f5f9;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-card-hover: 0 6px 16px rgba(15, 23, 42, .1), 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-nav: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .06);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 350ms ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg);
            overflow-x: hidden;
            margin: 0;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }
        /* 导航系统 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light);
            transition: box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }
        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: height var(--transition-slow), opacity var(--transition-slow), padding var(--transition-slow);
            overflow: hidden;
        }
        .site-header.scrolled .brand-row {
            height: 0;
            opacity: 0;
            padding: 0;
            pointer-events: none;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-dark);
            white-space: nowrap;
        }
        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }
        .brand-actions a {
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition-base);
        }
        .brand-actions a:hover {
            color: var(--primary);
        }
        .brand-actions .subscribe-link {
            color: var(--primary);
            font-weight: 600;
        }
        .brand-actions .subscribe-link:hover {
            color: var(--primary-dark);
        }
        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 44px;
            border-top: 1px solid var(--border-light);
            transition: height var(--transition-slow), border-color var(--transition-slow);
            overflow: hidden;
        }
        .site-header.scrolled .channel-row {
            height: 56px;
            border-top: none;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links::-webkit-scrollbar {
            display: none;
        }
        .nav-links a {
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-base);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }
        .site-header.scrolled .nav-links a.active::after {
            bottom: 0;
        }
        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            font-size: 20px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .hamburger:hover {
            background: var(--bg-soft);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 12px 0;
            box-shadow: 0 8px 16px rgba(15, 23, 42, .06);
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .mobile-menu li a {
            display: block;
            padding: 14px 32px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-dark);
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .mobile-menu li a:hover {
            background: var(--bg-secondary);
            color: var(--primary);
        }
        .mobile-menu li a.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--bg-secondary);
        }
        /* 面包屑 */
        .breadcrumb {
            font-size: 14px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--text-muted);
            font-weight: 500;
        }
        /* 板块通用 */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.3;
            margin: 0 0 16px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 0 32px;
            max-width: 720px;
        }
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
            cursor: pointer;
            outline: none;
            white-space: nowrap;
        }
        .btn:focus-visible {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .45);
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-secondary:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            border: 1px solid var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-blue {
            background: rgba(37, 99, 235, .1);
            color: var(--primary);
        }
        .badge-orange {
            background: rgba(249, 115, 22, .12);
            color: var(--accent-dark);
        }
        .badge-gray {
            background: var(--bg-soft);
            color: var(--text-light);
        }
        .badge-green {
            background: rgba(16, 185, 129, .12);
            color: #059669;
        }
        /* 赛程行 */
        .match-row {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            flex-wrap: wrap;
        }
        .match-row:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-card);
            transform: translateY(-1px);
        }
        .match-date-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-width: 56px;
            height: 56px;
            background: var(--bg-secondary);
            border-radius: var(--radius-sm);
            flex-shrink: 0;
        }
        .match-date-block .day {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            line-height: 1.2;
        }
        .match-date-block .month {
            font-size: 12px;
            color: var(--text-light);
            font-weight: 500;
        }
        .match-info {
            flex: 1;
            min-width: 200px;
        }
        .match-tournament {
            font-size: 14px;
            color: var(--text-light);
            font-weight: 500;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .match-teams {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            letter-spacing: .2px;
        }
        .match-detail {
            font-size: 13px;
            color: var(--text-light);
            margin-top: 2px;
        }
        .match-status {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .match-score {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            white-space: nowrap;
        }
        .match-score.live {
            color: var(--accent);
        }
        .match-score.finished {
            color: var(--text-muted);
        }
        /* FAQ手风琴 */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-card);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            list-style: none;
            user-select: none;
            gap: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
            font-size: 14px;
            transition: transform var(--transition-base), color var(--transition-base);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-muted);
        }
        /* 表单 */
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            max-width: 560px;
            margin: 0 auto;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            padding: 13px 18px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-dark);
            background: #fff;
            outline: none;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: var(--text-light);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
        }
        .subscribe-form .btn {
            min-width: 140px;
        }
        /* 页脚 */
        .site-footer {
            background: var(--text-dark);
            color: #cbd5e1;
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94a3b8;
            margin: 0;
            max-width: 360px;
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: #cbd5e1;
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .1);
            font-size: 13px;
            color: #94a3b8;
        }
        .footer-bottom a {
            color: #cbd5e1;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .brand-row {
                height: 56px;
            }
            .channel-row {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .brand-actions {
                display: none;
            }
            .match-row {
                gap: 12px;
                padding: 16px;
            }
            .match-date-block {
                min-width: 48px;
                height: 48px;
            }
            .match-date-block .day {
                font-size: 16px;
            }
            .match-teams {
                font-size: 15px;
            }
            .match-status {
                width: 100%;
                justify-content: flex-end;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: auto;
            }
            .subscribe-form .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .match-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .match-date-block {
                flex-direction: row;
                gap: 6px;
                height: auto;
                padding: 6px 12px;
                min-width: auto;
            }
            .match-date-block .month {
                font-size: 12px;
            }
            .match-info {
                width: 100%;
            }
            .match-status {
                width: 100%;
                justify-content: space-between;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg: #ffffff;
            --bg-secondary: #f5f8fc;
            --bg-soft: #f1f5f9;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border: #e2e8f0;
            --border-light: #eef2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-card: 0 1px 3px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .08);
            --shadow-card-hover: 0 6px 16px rgba(15, 23, 42, .1), 0 12px 32px rgba(15, 23, 42, .08);
            --shadow-nav: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .06);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition-fast: 150ms ease;
            --transition-base: 250ms ease;
            --transition-slow: 350ms ease;
        }

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

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            box-shadow: 0 1px 0 var(--border-light);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-nav);
        }

        .brand-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 56px;
            transition: height var(--transition-slow), opacity var(--transition-slow), padding var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .brand-row {
            height: 0;
            opacity: 0;
            padding: 0;
            pointer-events: none;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--text-dark);
            white-space: nowrap;
        }

        .brand-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .brand-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }

        .brand-actions a {
            color: var(--text-muted);
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .brand-actions a:hover {
            color: var(--primary);
        }

        .brand-actions .subscribe-link {
            color: var(--primary);
            font-weight: 600;
        }

        .brand-actions .subscribe-link:hover {
            color: var(--primary-dark);
        }

        .channel-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 44px;
            border-top: 1px solid var(--border-light);
            transition: height var(--transition-slow), border-color var(--transition-slow);
            overflow: hidden;
        }

        .site-header.scrolled .channel-row {
            height: 56px;
            border-top: none;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-links::-webkit-scrollbar {
            display: none;
        }

        .nav-links a {
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-base);
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

        .site-header.scrolled .nav-links a.active::after {
            bottom: 0;
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: var(--text-dark);
            font-size: 20px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .hamburger:hover {
            background: var(--bg-soft);
            color: var(--primary);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            padding: 8px 20px 16px;
            list-style: none;
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border-light);
            transition: color var(--transition-base);
        }

        .mobile-menu a:hover {
            color: var(--primary);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .brand-row {
                height: 56px;
                opacity: 1;
                padding: 0;
                pointer-events: auto;
            }
            .site-header.scrolled .brand-row {
                height: 56px;
                opacity: 1;
                padding: 0;
                pointer-events: auto;
            }
            .channel-row {
                display: none;
            }
            .brand-actions {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }

        /* ========== 面包屑 ========== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .breadcrumb a {
            color: var(--text-light);
            transition: color var(--transition-base);
        }

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

        .breadcrumb .separator {
            color: var(--border);
        }

        .breadcrumb .current {
            color: var(--text-dark);
            font-weight: 600;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }

        .btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .3);
        }

        .btn:active {
            transform: scale(.97);
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
        }

        .btn-primary:hover {
            background: var(--accent);
            color: #ffffff;
        }

        .btn-outline {
            background: #ffffff;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
        }

        .btn-sm {
            padding: 7px 16px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 13px 28px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-text {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0;
            transition: color var(--transition-base);
        }

        .btn-text i {
            font-size: 13px;
            transition: transform var(--transition-base);
        }

        .btn-text:hover {
            color: var(--accent);
        }

        .btn-text:hover i {
            transform: translateX(3px);
        }

        /* ========== 徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.6;
            white-space: nowrap;
        }

        .badge-blue {
            background: #eff6ff;
            color: var(--primary);
        }

        .badge-orange {
            background: #fff7ed;
            color: var(--accent-dark);
        }

        .badge-green {
            background: #f0fdf4;
            color: #16a34a;
        }

        /* ========== 卡片 ========== */
        .card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            border: 1px solid var(--border-light);
        }

        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--border);
        }

        .card-body {
            padding: 24px;
        }

        .card-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        /* ========== 板块样式 ========== */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0f172a;
            color: #e2e8f0;
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .site-footer .container {
            max-width: 1200px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .footer-desc {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 14px;
        }

        .footer-links a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid #1e293b;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom a {
            color: #94a3b8;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ========== 补充板块样式 ========== */
        .page-hero {
            padding: 40px 0 32px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-light);
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .page-hero p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 720px;
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero {
                padding: 28px 0 24px;
            }
        }

        .guide-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: #eff6ff;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 20px;
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-card);
        }

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            flex-shrink: 0;
        }

        .step-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .contributor-card {
            text-align: center;
            padding: 28px 20px;
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .contributor-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .contributor-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 14px;
            border: 3px solid #eff6ff;
        }

        .contributor-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .contributor-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .cta-section {
            background: var(--bg-soft);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 28px 20px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
        }

        .topic-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .topic-card img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        .topic-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(to top, rgba(15, 23, 42, .85), rgba(15, 23, 42, .2));
            color: #ffffff;
        }

        .topic-overlay h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .topic-overlay p {
            font-size: 13px;
            color: #cbd5e1;
            line-height: 1.6;
        }

        .update-log {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .update-log strong {
            color: var(--text-dark);
            font-weight: 600;
        }