/* roulang page: index */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
        }

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

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

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

        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }

        :focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }

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

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            color: var(--text-muted);
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
            flex-shrink: 0;
            border: 1px solid transparent;
        }

        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-tab.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.15);
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .nav-top-row {
                padding: 10px 0;
                gap: 12px;
            }
            .nav-logo {
                font-size: 18px;
            }
            .nav-search {
                order: 3;
                flex-basis: 100%;
                max-width: 100%;
            }
            .nav-cta {
                gap: 6px;
            }
            .btn-subscribe-nav {
                padding: 8px 14px;
                font-size: 12px;
            }
            .nav-tabs-row {
                padding-bottom: 8px;
            }
            .nav-tab {
                padding: 6px 14px;
                font-size: 13px;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            padding: 60px 0 70px;
            background-image: url('/assets/images/82826810130e436f.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(125deg, rgba(11, 18, 32, 0.92) 20%, rgba(15, 23, 42, 0.75) 55%, rgba(11, 18, 32, 0.88) 100%);
            z-index: -1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-left h1 {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .hero-left .hero-subtitle {
            font-size: 16px;
            color: var(--cyan);
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-left .hero-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 32px rgba(47, 125, 255, 0.55);
            transform: translateY(-1px);
        }

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            color: var(--text-light);
            border: 1px solid var(--cyan);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.2);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
        }

        .btn-secondary:hover {
            background: rgba(34, 211, 238, 0.15);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
            transform: translateY(-1px);
        }

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

        .hero-search-box {
            max-width: 420px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 18px;
            height: 48px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
        }

        .hero-search-box input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .hero-search-box input::placeholder {
            color: var(--text-muted);
        }

        .hero-search-box svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .hero-data-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .data-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .data-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35), 0 0 20px rgba(34, 211, 238, 0.1);
        }

        .data-card .data-number {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            font-variant-numeric: tabular-nums;
            color: var(--cyan);
            line-height: 1.2;
        }

        .data-card .data-number.yellow {
            color: var(--yellow);
        }

        .data-card .data-number.green {
            color: var(--green);
        }

        .data-card .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .data-card .data-trend {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            margin-top: 8px;
        }

        .data-trend.up {
            color: var(--green);
            background: rgba(16, 185, 129, 0.15);
        }

        .data-trend.hot {
            color: var(--yellow);
            background: rgba(245, 179, 1, 0.15);
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-left {
                text-align: left;
            }
            .hero-actions {
                justify-content: flex-start;
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding: 40px 0 50px;
                min-height: auto;
            }
            .hero-left h1 {
                font-size: 26px;
            }
            .hero-data-panel {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .data-card {
                padding: 16px 14px;
            }
            .data-card .data-number {
                font-size: 24px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 11px 18px;
                font-size: 13px;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }
            .hero-search-box {
                max-width: 100%;
            }
        }

        /* Section 通用 */
        .section {
            padding: var(--space-section) 0;
        }

        .section.alt {
            background: rgba(15, 23, 42, 0.5);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .section-header h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            margin-top: 10px;
            line-height: 1.8;
        }

        @media (max-width: 640px) {
            .section {
                padding: var(--space-section-mobile) 0;
            }
            .section-header {
                margin-bottom: 24px;
            }
        }

        /* 服务矩阵 */
        .service-matrix {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .service-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .service-card:hover {
            border-color: rgba(34, 211, 238, 0.35);
            transform: translateY(-2px);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35), 0 0 16px rgba(34, 211, 238, 0.08);
        }

        .service-card.large {
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .service-card .service-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(34, 211, 238, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan);
            margin-bottom: 14px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }

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

        .service-card .service-update {
            font-size: 12px;
            color: var(--cyan);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan);
            margin-top: 14px;
            transition: gap 0.2s ease, color 0.2s ease;
        }

        .service-link:hover {
            gap: 10px;
            color: #fff;
        }

        @media (max-width: 1024px) {
            .service-matrix {
                grid-template-columns: 1fr 1fr;
            }
            .service-card.large {
                grid-row: auto;
                grid-column: span 2;
            }
        }

        @media (max-width: 640px) {
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card.large {
                grid-column: auto;
            }
            .service-card {
                padding: 18px 16px;
            }
        }

        /* 结果对比 */
        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .compare-block {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .compare-block h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
        }

        .compare-bar-group {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-bar-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-bar-item .bar-label {
            font-size: 13px;
            color: var(--text-muted);
            min-width: 72px;
            white-space: nowrap;
        }

        .compare-bar-item .bar-track {
            flex: 1;
            height: 10px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .compare-bar-item .bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            transition: width 0.6s ease;
        }

        .bar-fill.blue {
            background: var(--primary);
        }

        .bar-fill.cyan {
            background: var(--cyan);
        }

        .bar-fill.yellow {
            background: var(--yellow);
        }

        .bar-fill.green {
            background: var(--green);
        }

        .compare-bar-item .bar-value {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            min-width: 40px;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }

        @media (max-width: 768px) {
            .compare-wrapper {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .compare-block {
                padding: 18px 16px;
            }
        }

        /* 里程碑 */
        .milestone-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            position: relative;
        }

        .milestone-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .milestone-item:hover {
            border-color: rgba(34, 211, 238, 0.35);
            transform: translateY(-2px);
        }

        .milestone-item .m-year {
            font-size: 24px;
            font-weight: 800;
            color: var(--yellow);
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }

        .milestone-item .m-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-top: 6px;
            margin-bottom: 6px;
        }

        .milestone-item .m-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .milestone-timeline {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .milestone-timeline {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .milestone-item {
                padding: 16px 14px;
            }
        }

        /* 联赛磁贴 */
        .league-tiles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .league-tile {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 160px;
            display: flex;
            align-items: flex-end;
            padding: 20px;
            background-size: cover;
            background-position: center;
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .league-tile::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.25) 30%, rgba(11, 18, 32, 0.85) 100%);
            z-index: 1;
        }

        .league-tile:hover {
            transform: translateY(-2px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        }

        .league-tile .league-info {
            position: relative;
            z-index: 2;
        }

        .league-tile .league-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .league-tile .league-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .league-tiles {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .league-tiles {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .league-tile {
                min-height: 120px;
            }
        }

        /* 新闻中心 */
        .news-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }

        .news-main-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .news-main-card:hover {
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-2px);
        }

        .news-main-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .news-main-card .news-body {
            padding: 20px;
        }

        .news-date {
            font-size: 12px;
            color: var(--yellow);
            font-weight: 600;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan);
            transition: gap 0.2s ease, color 0.2s ease;
        }

        .btn-read-more:hover {
            gap: 10px;
            color: #fff;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-list-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .news-list-item:hover {
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-1px);
        }

        .news-list-item .news-title {
            font-size: 15px;
            margin-bottom: 4px;
        }

        .news-list-item .news-summary {
            font-size: 13px;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-main-card img {
                height: 180px;
            }
        }

        @media (max-width: 640px) {
            .news-main-card img {
                height: 150px;
            }
            .news-list-item {
                padding: 12px 14px;
            }
        }

        /* 品牌介绍 */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
        }

        .brand-intro .brand-text {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.9;
        }

        .brand-intro .brand-text p {
            margin-bottom: 12px;
        }

        .brand-intro .brand-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--glass-border);
            max-height: 320px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro .brand-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width: 768px) {
            .brand-intro {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .brand-intro .brand-image {
                max-height: 220px;
            }
        }

        /* 平台保障 */
        .assurance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .assurance-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .assurance-item:hover {
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-2px);
        }

        .assurance-item .a-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 12px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--cyan);
        }

        .assurance-item .a-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .assurance-item .a-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .assurance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .assurance-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* 快速解答 */
        .quick-qa-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .quick-qa-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
        }

        .quick-qa-item .qa-q {
            font-size: 15px;
            font-weight: 600;
            color: var(--cyan);
            margin-bottom: 6px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .quick-qa-item .qa-q::before {
            content: 'Q';
            font-size: 12px;
            font-weight: 700;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            flex-shrink: 0;
        }

        .quick-qa-item .qa-a {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .quick-qa-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* FAQ */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item.active {
            border-color: rgba(34, 211, 238, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
            gap: 16px;
            transition: background-color 0.2s ease;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question .faq-q-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-question .faq-q-text::before {
            content: '';
            width: 3px;
            height: 20px;
            background: var(--cyan);
            border-radius: 2px;
            flex-shrink: 0;
            margin-top: 2px;
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
        }

        .faq-toggle {
            font-size: 18px;
            color: var(--cyan);
            flex-shrink: 0;
            transition: transform 0.25s ease;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            background: rgba(255, 255, 255, 0.04);
            padding: 14px 16px;
            border-radius: var(--radius-sm);
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 14px 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 14px;
            }
            .faq-answer p {
                padding: 12px 14px;
            }
        }

        /* 转化表单 */
        .cta-form-section {
            position: relative;
            isolation: isolate;
        }

        .cta-form-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(47, 125, 255, 0.12) 0%, transparent 70%);
            z-index: -1;
        }

        .form-card {
            max-width: 680px;
            margin: 0 auto;
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
        }

        .form-card h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .form-card .form-sub {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 20px;
        }

        .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-field label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .form-field input,
        .form-field select {
            height: 46px;
            padding: 0 16px;
            background: rgba(11, 18, 32, 0.6);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
            outline: none;
        }

        .form-field select option {
            background: var(--bg-mid);
            color: var(--text-main);
        }

        .btn-submit-form {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .btn-submit-form:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 32px rgba(47, 125, 255, 0.55);
            transform: translateY(-1px);
        }

        .btn-submit-form:active {
            transform: scale(0.98);
        }

        @media (max-width: 640px) {
            .form-card {
                padding: 24px 18px;
            }
            .form-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .form-field input,
            .form-field select {
                height: 42px;
            }
        }

        /* 订阅说明 */
        .update-note {
            background: rgba(34, 211, 238, 0.06);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .update-note .note-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan);
            flex-shrink: 0;
        }

        .update-note .note-text {
            flex: 1;
            min-width: 200px;
        }

        .update-note .note-text h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .update-note .note-text p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .update-note .btn-outline-sm {
            padding: 9px 18px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--cyan);
            border: 1px solid var(--cyan);
            transition: background-color 0.2s ease, color 0.2s ease;
            white-space: nowrap;
        }

        .update-note .btn-outline-sm:hover {
            background: rgba(34, 211, 238, 0.15);
            color: #fff;
        }

        @media (max-width: 640px) {
            .update-note {
                padding: 16px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 页脚 */
        .site-footer {
            background: rgba(7, 12, 22, 0.8);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }

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

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--cyan);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            font-size: 12px;
        }

        .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--cyan);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 数字等宽 */
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }
        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }
        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }
        .btn-subscribe-nav:active {
            transform: scale(0.97);
        }
        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            color: var(--text-muted);
            transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
            border: 1px solid transparent;
        }
        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-tab.active {
            color: var(--text-light);
            background: rgba(34, 211, 238, 0.12);
            border-color: rgba(34, 211, 238, 0.25);
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.2);
        }
        .nav-tab:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        @media (max-width: 768px) {
            .nav-top-row {
                flex-wrap: wrap;
                gap: 10px;
            }
            .nav-search {
                order: 3;
                flex: 1 1 100%;
                max-width: 100%;
            }
            .nav-tabs-row {
                padding: 6px 0 8px;
            }
            .nav-tab {
                padding: 7px 13px;
                font-size: 13px;
            }
        }
        /* 面包屑 */
        .breadcrumb-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 20px 0 0;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-bar a:hover {
            color: var(--cyan);
        }
        .breadcrumb-bar .sep {
            color: rgba(148, 163, 184, 0.5);
        }
        .breadcrumb-bar .current {
            color: var(--text-light);
            font-weight: 500;
        }
        /* 分类H1区 */
        .category-hero {
            padding: 24px 0 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 40px;
        }
        .category-hero h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
            margin: 0 0 12px;
        }
        .category-hero .subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin: 0;
        }
        .category-hero .meta-strip {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .category-hero .meta-strip .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--gray-blue);
        }
        .category-hero .meta-strip .highlight {
            color: var(--cyan);
        }
        /* 板块通用 */
        .section {
            padding: var(--space-section) 0;
        }
        @media (max-width: 640px) {
            .section {
                padding: var(--space-section-mobile) 0;
            }
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .section-header h2 {
            font-size: clamp(22px, 2.5vw, 28px);
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin: 0;
            line-height: 1.3;
        }
        .section-header .section-note {
            font-size: 14px;
            color: var(--text-muted);
            margin: 6px 0 0;
        }
        .section-header .section-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .section-header .section-link:hover {
            text-decoration: underline;
        }
        /* 玻璃卡片 */
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
            pointer-events: none;
        }
        .glass-card:hover {
            border-color: rgba(34, 211, 238, 0.35);
            box-shadow: 0 0 28px rgba(34, 211, 238, 0.15), var(--shadow-card);
            transform: translateY(-2px);
        }
        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 26px rgba(47, 125, 255, 0.55);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            color: var(--text-main);
            border: 1px solid rgba(34, 211, 238, 0.4);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.1);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--cyan);
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.25);
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
        }
        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.1);
            white-space: nowrap;
        }
        .badge-cyan {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.25);
        }
        .badge-yellow {
            background: rgba(245, 179, 1, 0.12);
            color: var(--yellow);
            border-color: rgba(245, 179, 1, 0.25);
        }
        .badge-green {
            background: rgba(16, 185, 129, 0.12);
            color: var(--green);
            border-color: rgba(16, 185, 129, 0.25);
        }
        /* 赛程列表卡片 */
        .match-list-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }
        .match-list-item:hover {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.12);
            transform: translateY(-1px);
        }
        .match-list-item .match-thumb {
            width: 72px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            overflow: hidden;
        }
        .match-list-item .match-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .match-list-item .match-info {
            flex: 1;
            min-width: 0;
        }
        .match-list-item .match-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            margin: 0 0 4px;
            line-height: 1.4;
        }
        .match-list-item .match-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .match-list-item .match-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        /* 数据条 */
        .stat-bar-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .stat-bar-label {
            font-size: 13px;
            color: var(--text-muted);
            min-width: 80px;
            flex-shrink: 0;
        }
        .stat-bar-track {
            flex: 1;
            height: 8px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }
        .stat-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            transition: width 0.6s ease;
        }
        .stat-bar-value {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            min-width: 42px;
            text-align: right;
            font-variant-numeric: tabular-nums;
        }
        /* 联赛磁贴 */
        .league-tile {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16/9;
            display: flex;
            align-items: flex-end;
            padding: 16px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .league-tile:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
        }
        .league-tile .league-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .league-tile .league-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.15) 0%, rgba(11, 18, 32, 0.85) 100%);
        }
        .league-tile .league-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .league-tile .league-name {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 4px;
        }
        .league-tile .league-count {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
        }
        /* FAQ */
        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 12px;
            transition: border-color 0.2s ease;
        }
        .faq-item.active {
            border-color: rgba(34, 211, 238, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            transition: background-color 0.2s ease;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-question .faq-indicator {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 14px;
            font-weight: 700;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question .faq-indicator {
            transform: rotate(45deg);
        }
        .faq-answer {
            display: none;
            padding: 0 20px 16px 52px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        /* 转化表单 */
        .subscribe-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 32px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--cyan), transparent);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-muted);
        }
        .form-input {
            padding: 11px 16px;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            width: 100%;
        }
        .form-input::placeholder {
            color: rgba(148, 163, 184, 0.7);
        }
        .form-input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
            outline: none;
        }
        select.form-input {
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 38px;
        }
        /* 页脚 */
        .site-footer {
            background: rgba(11, 18, 32, 0.9);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-light);
            margin: 0 0 12px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--cyan);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-wrap: wrap;
        }
        .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        /* 图表区 */
        .table-mini {
            width: 100%;
            text-align: left;
            border-collapse: collapse;
        }
        .table-mini th {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 10px 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            white-space: nowrap;
        }
        .table-mini td {
            font-size: 14px;
            padding: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-main);
            font-variant-numeric: tabular-nums;
        }
        .table-mini tr:last-child td {
            border-bottom: none;
        }
        .table-mini .team-cell {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            color: var(--text-light);
        }
        .table-mini .pos-cell {
            font-weight: 700;
            color: var(--cyan);
        }
        .table-mini .pts-cell {
            font-weight: 700;
            color: var(--yellow);
        }
        /* 响应式grid */
        .grid-match-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        @media (max-width: 768px) {
            .grid-match-list {
                grid-template-columns: 1fr;
            }
        }
        .grid-league-tiles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
        }
        @media (max-width: 768px) {
            .grid-league-tiles {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .grid-league-tiles {
                grid-template-columns: 1fr;
            }
        }
        .grid-faq {
            max-width: 760px;
        }
        .grid-form-2col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        @media (max-width: 640px) {
            .grid-form-2col {
                grid-template-columns: 1fr;
            }
        }
        /* 数据面板 */
        .data-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        @media (max-width: 768px) {
            .data-panel {
                grid-template-columns: 1fr;
            }
        }
        /* 更新时间提示 */
        .update-tip {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: var(--radius-md);
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .update-tip svg {
            width: 16px;
            height: 16px;
            color: var(--cyan);
            flex-shrink: 0;
        }
        .pagination-bar {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            margin-top: 28px;
            flex-wrap: wrap;
        }
        .page-dot {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-muted);
            transition: all 0.2s ease;
        }
        .page-dot:hover {
            color: var(--text-light);
            border-color: rgba(34, 211, 238, 0.3);
        }
        .page-dot.active {
            background: rgba(34, 211, 238, 0.15);
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .page-dot:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

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

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

        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }

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

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            border-radius: var(--radius-pill);
            transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
            white-space: nowrap;
        }

        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-tab.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.35);
        }

        .nav-tab:focus-visible,
        .btn-subscribe-nav:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb {
            padding: 16px 0 0;
            font-size: 13px;
            color: var(--text-muted);
        }

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

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

        .breadcrumb span {
            margin: 0 6px;
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb .current {
            color: var(--text-light);
        }

        /* 分类 H1 区 */
        .page-header {
            padding: 28px 0 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 32px;
        }

        .page-header h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
        }

        .page-header .subtitle {
            font-size: 15px;
            color: var(--text-muted);
            margin-top: 8px;
            max-width: 680px;
        }

        /* 通用 section */
        .section {
            padding: 32px 0;
        }

        .section-header {
            margin-bottom: 24px;
        }

        .section-header h2 {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.4;
        }

        .section-header .section-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* 卡片列表 */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        @media (max-width: 768px) {
            .insight-grid {
                grid-template-columns: 1fr;
            }
        }

        .insight-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
            display: flex;
            flex-direction: column;
        }

        .insight-card:hover {
            transform: translateY(-2px);
            border-color: rgba(34, 211, 238, 0.45);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
        }

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

        .insight-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .insight-card:hover .card-image img {
            transform: scale(1.03);
        }

        .insight-card .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .card-meta .badge {
            display: inline-block;
            padding: 2px 8px;
            font-size: 11px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .card-meta .badge.yellow {
            background: rgba(245, 179, 1, 0.12);
            color: var(--yellow);
            border-color: rgba(245, 179, 1, 0.3);
        }

        .card-meta .badge.red {
            background: rgba(240, 68, 56, 0.12);
            color: var(--red);
            border-color: rgba(240, 68, 56, 0.3);
        }

        .card-meta .badge.green {
            background: rgba(16, 185, 129, 0.12);
            color: var(--green);
            border-color: rgba(16, 185, 129, 0.3);
        }

        .insight-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: -0.01em;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .insight-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            transition: color 0.2s ease, gap 0.2s ease;
            align-self: flex-start;
        }

        .read-more-link:hover {
            color: #7dd3fc;
            gap: 10px;
        }

        /* 数据速览 */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
        }

        .stat-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 18px;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease;
        }

        .stat-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
        }

        .stat-card .stat-value {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--cyan);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .stat-card .stat-value.yellow {
            color: var(--yellow);
        }

        .stat-card .stat-value.green {
            color: var(--green);
        }

        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            display: inline-block;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-muted);
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
        }

        .tag-cloud .tag:hover {
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.4);
            background: rgba(34, 211, 238, 0.08);
        }

        /* 相关专题磁贴 */
        .topic-tiles {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        @media (max-width: 768px) {
            .topic-tiles {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 480px) {
            .topic-tiles {
                grid-template-columns: 1fr;
            }
        }

        .topic-tile {
            position: relative;
            aspect-ratio: 4/3;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: transform 0.2s ease, border-color 0.2s ease;
        }

        .topic-tile:hover {
            transform: translateY(-2px);
            border-color: rgba(34, 211, 238, 0.5);
        }

        .topic-tile img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .topic-tile .tile-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.9) 0%, rgba(11, 18, 32, 0.3) 60%, rgba(11, 18, 32, 0.1) 100%);
            display: flex;
            align-items: flex-end;
            padding: 16px;
        }

        .topic-tile .tile-overlay span {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
        }

        /* FAQ */
        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(34, 211, 238, 0.35);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: background-color 0.2s ease;
            position: relative;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-question::before {
            content: "";
            width: 2px;
            height: 20px;
            background: var(--cyan);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--cyan);
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            display: none;
            padding: 0 20px 18px 34px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        /* 订阅 CTA */
        .subscribe-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
        }

        .subscribe-panel h2 {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
        }

        .subscribe-panel .sub-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin: 8px 0 20px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

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

        .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-field label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .form-field input,
        .form-field select {
            height: 44px;
            padding: 0 16px;
            background: rgba(11, 18, 32, 0.6);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .form-field select option {
            background: var(--bg-mid);
            color: var(--text-main);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 18px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 26px rgba(47, 125, 255, 0.5);
        }

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

        /* 更新说明 */
        .update-note {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
        }

        .update-note .note-icon {
            font-size: 20px;
            color: var(--yellow);
            flex-shrink: 0;
        }

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

        /* 页脚 */
        .site-footer {
            background: #080F1D;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 24px;
            margin-top: 64px;
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 12px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        @media (max-width: 640px) {
            .page-header h1 {
                font-size: 28px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
        }

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

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

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

        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }

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

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            color: var(--text-muted);
            border: 1px solid transparent;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-tab.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.15);
        }

        .nav-tab:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .sep {
            color: var(--gray-blue);
            font-size: 12px;
        }

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

        /* H1 横条区 */
        .page-hero-strip {
            padding: 24px 0 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            margin-bottom: var(--space-section);
            position: relative;
        }

        .page-hero-strip::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 48px;
            background: linear-gradient(180deg, var(--cyan), var(--primary));
            border-radius: var(--radius-sm);
        }

        .page-hero-strip h1 {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .page-hero-strip .subtitle {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 680px;
        }

        @media (max-width: 640px) {
            .page-hero-strip h1 {
                font-size: 28px;
            }
            .page-hero-strip .subtitle {
                font-size: 14px;
            }
        }

        /* 通用 section */
        .section-block {
            padding: var(--space-section) 0;
        }

        .section-block.alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-title {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 36px;
        }

        /* 卡片通用 */
        .glass-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
        }

        .glass-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
            transform: translateY(-2px);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45), 0 0 18px rgba(34, 211, 238, 0.12);
        }

        /* 问答列表卡片 */
        .qa-card {
            display: flex;
            flex-direction: column;
            overflow: hidden;
            height: 100%;
        }

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

        .qa-card .qa-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .qa-card:hover .qa-image img {
            transform: scale(1.03);
        }

        .qa-card .qa-image .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.1) 0%, rgba(11, 18, 32, 0.6) 100%);
        }

        .qa-card .badge-category {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(11, 18, 32, 0.75);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-pill);
            color: var(--yellow);
            z-index: 1;
        }

        .qa-card .qa-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 10px;
        }

        .qa-card .qa-date {
            font-size: 12px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
        }

        .qa-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .qa-card .qa-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            align-self: flex-start;
            padding: 8px 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan);
            border-bottom: 1px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
        }

        .btn-read-more:hover {
            color: var(--text-light);
            border-bottom-color: var(--cyan);
        }

        .btn-read-more:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* 分类说明板块 */
        .info-panel {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: start;
        }

        .info-panel .info-text {
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.9;
        }

        .info-panel .info-text strong {
            color: var(--text-light);
            font-weight: 600;
        }

        .info-meta-box {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
        }

        .info-meta-box h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .info-meta-box ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .info-meta-box li {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .info-meta-box li::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--cyan);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 9px;
        }

        @media (max-width: 768px) {
            .info-panel {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* 标签速查 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-main);
            transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
        }

        .tag-chip:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
        }

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

        /* 相关专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 16px;
        }

        .topic-tile {
            position: relative;
            aspect-ratio: 3/2;
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            align-items: flex-end;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .topic-tile img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .topic-tile .tile-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.25) 0%, rgba(11, 18, 32, 0.82) 100%);
            z-index: 1;
        }

        .topic-tile .tile-label {
            position: relative;
            z-index: 2;
            padding: 16px 18px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: -0.01em;
        }

        .topic-tile:hover {
            border-color: var(--cyan);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
        }

        .topic-tile:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
        }

        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item.open {
            border-color: rgba(34, 211, 238, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            width: 100%;
            padding: 18px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            border-left: 3px solid transparent;
            transition: border-color 0.2s ease, background-color 0.2s ease;
        }

        .faq-item.open .faq-question {
            border-left-color: var(--cyan);
            background: rgba(34, 211, 238, 0.04);
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: -2px;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--glass-border);
            border-radius: 50%;
            color: var(--text-muted);
            transition: transform 0.3s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.4);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* 订阅 CTA */
        .cta-panel {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--primary), transparent);
        }

        .cta-panel h3 {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .cta-panel p {
            font-size: 14px;
            color: var(--text-muted);
        }

        .cta-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .cta-form .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .cta-form .form-field.full {
            grid-column: 1 / -1;
        }

        .cta-form label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        .cta-form input,
        .cta-form select {
            width: 100%;
            padding: 12px 16px;
            font-size: 14px;
            background: rgba(11, 18, 32, 0.7);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .cta-form select option {
            background: var(--bg-mid);
            color: var(--text-main);
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(34, 211, 238, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            cursor: pointer;
            grid-column: 1 / -1;
        }

        .btn-primary-glow:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 28px rgba(34, 211, 238, 0.5);
        }

        .btn-primary-glow:active {
            transform: scale(0.98);
        }

        .btn-primary-glow:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        @media (max-width: 768px) {
            .cta-panel {
                grid-template-columns: 1fr;
                padding: 28px 22px;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .cta-form {
                grid-template-columns: 1fr;
            }
            .cta-form .form-field.full,
            .btn-primary-glow {
                grid-column: 1;
            }
        }

        /* 更新说明 */
        .update-strip {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            flex-wrap: wrap;
        }

        .update-strip .update-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
        }

        .update-strip .update-content {
            flex: 1;
            min-width: 200px;
        }

        .update-strip h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 6px;
        }

        .update-strip p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .update-strip .update-links {
            display: flex;
            gap: 16px;
            align-items: center;
            flex-shrink: 0;
        }

        .update-strip .update-links a {
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            transition: color 0.2s ease;
        }

        .update-strip .update-links a:hover {
            color: var(--text-light);
        }

        /* 页脚 */
        .site-footer {
            background: rgba(11, 18, 32, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 48px;
            margin-top: var(--space-section);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            margin-bottom: 12px;
        }

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

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
        }

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

        .footer-col li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-col li a:hover {
            color: var(--cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .footer-bottom .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--cyan);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 640px) {
            .section-block {
                padding: var(--space-section-mobile) 0;
            }
            .page-hero-strip {
                margin-bottom: var(--space-section-mobile);
            }
            .nav-top-row {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .nav-search {
                order: 3;
                max-width: 100%;
                min-width: 100%;
            }
            .section-title {
                font-size: 22px;
            }
            .topic-grid {
                grid-template-columns: 1fr 1fr;
            }
            .qa-card .qa-body {
                padding: 16px 18px 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .topic-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .qa-grid {
                grid-template-columns: repeat(2, 1fr) !important;
            }
        }

        @media (min-width: 1025px) {
            .qa-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .qa-grid {
            display: grid;
            gap: 20px;
        }

        /* 隐藏滚动条但保留滚动 */
        .scrollbar-none {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .scrollbar-none::-webkit-scrollbar {
            display: none;
        }

        /* 数字等宽 */
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }

/* roulang page: category4 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

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

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

        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo:hover {
            color: var(--cyan);
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }

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

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
            position: relative;
        }

        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-tab.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.12);
            box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.25);
        }

        .nav-tab:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--gray-blue);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.3);
            font-size: 12px;
        }

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

        /* 分类H1区 */
        .category-hero {
            padding: 24px 0 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 48px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .category-hero .lead {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
        }

        /* 玻璃卡片 */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            padding: 24px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

        .glass-card:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 20px rgba(34, 211, 238, 0.15);
            transform: translateY(-2px);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 30px rgba(47, 125, 255, 0.55);
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            color: var(--text-main);
            border: 1px solid rgba(34, 211, 238, 0.4);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(34, 211, 238, 0.1);
            border-color: var(--cyan);
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.2);
        }

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

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

        .badge-cyan {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.3);
        }

        .badge-yellow {
            background: rgba(245, 179, 1, 0.12);
            color: var(--yellow);
            border: 1px solid rgba(245, 179, 1, 0.3);
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.12);
            color: var(--green);
            border: 1px solid rgba(16, 185, 129, 0.3);
        }

        .badge-blue {
            background: rgba(47, 125, 255, 0.12);
            color: var(--primary);
            border: 1px solid rgba(47, 125, 255, 0.3);
        }

        /* 图片遮罩 */
        .image-mask {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-md);
        }

        .image-mask::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.85) 0%, rgba(11, 18, 32, 0.2) 50%, rgba(11, 18, 32, 0.1) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .image-mask img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .image-mask:hover img {
            transform: scale(1.04);
        }

        /* 主体内容卡片列表 */
        .article-list-item {
            display: flex;
            flex-direction: column;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            height: 100%;
        }

        .article-list-item:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 0 18px rgba(34, 211, 238, 0.12);
            transform: translateY(-2px);
        }

        .article-list-item .media {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: 0;
        }

        .article-list-item .media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .article-list-item:hover .media img {
            transform: scale(1.05);
        }

        .article-list-item .content {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 8px;
        }

        .article-list-item .meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .article-list-item .title {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-light);
            line-height: 1.5;
            margin: 4px 0 2px;
            transition: color 0.2s ease;
        }

        .article-list-item:hover .title {
            color: var(--cyan);
        }

        .article-list-item .summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            flex: 1;
        }

        .article-list-item .read-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: auto;
            transition: color 0.2s ease, gap 0.2s ease;
        }

        .article-list-item .read-more:hover {
            color: var(--text-light);
            gap: 8px;
        }

        /* 板块标题 */
        .section-heading {
            margin-bottom: 32px;
        }

        .section-heading h2 {
            font-size: 26px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        /* 封面专题 */
        .cover-feature {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }

        .cover-feature .media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 320px;
        }

        .cover-feature .media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .cover-feature .content {
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 14px;
        }

        /* 栏目导览 */
        .column-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .column-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

        .column-item:hover {
            border-color: rgba(34, 211, 238, 0.35);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
            transform: translateY(-2px);
        }

        .column-item .icon {
            font-size: 24px;
            margin-bottom: 8px;
            color: var(--cyan);
        }

        .column-item .name {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 4px;
        }

        .column-item .desc {
            font-size: 12px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 订阅CTA */
        .subscribe-section {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .subscribe-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .subscribe-form .field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .subscribe-form .field label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        .subscribe-form .field input,
        .subscribe-form .field select {
            padding: 10px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            min-height: 42px;
        }

        .subscribe-form .field input:focus,
        .subscribe-form .field select:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
            outline: none;
        }

        .subscribe-form .field input::placeholder {
            color: rgba(148, 163, 184, 0.6);
        }

        .subscribe-form .field select option {
            background: var(--bg-mid);
            color: var(--text-main);
        }

        .subscribe-form .full-width {
            grid-column: 1 / -1;
        }

        /* 更新说明 */
        .update-note {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: rgba(34, 211, 238, 0.05);
            border: 1px solid rgba(34, 211, 238, 0.2);
            border-radius: var(--radius-md);
            padding: 18px 20px;
        }

        .update-note .icon {
            font-size: 20px;
            color: var(--cyan);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .update-note .text {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.8;
        }

        .update-note .text strong {
            color: var(--text-light);
            font-weight: 700;
        }

        /* 页脚 */
        .site-footer {
            margin-top: var(--space-section);
            padding: 48px 0 24px;
            background: var(--bg-mid);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .footer-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .cover-feature {
                grid-template-columns: 1fr;
            }

            .cover-feature .media {
                min-height: 240px;
            }

            .column-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .subscribe-section {
                grid-template-columns: 1fr;
                padding: 28px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-top-row {
                flex-wrap: wrap;
                gap: 10px;
            }

            .nav-search {
                order: 3;
                flex: 1 1 100%;
                max-width: 100%;
                min-width: auto;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .section-heading h2 {
                font-size: 22px;
            }

            .cover-feature .media {
                min-height: 200px;
            }

            .subscribe-form {
                grid-template-columns: 1fr;
            }

            .subscribe-form .full-width {
                grid-column: auto;
            }

            .article-list-item .title {
                font-size: 15px;
            }

            .article-list-item .summary {
                font-size: 13px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

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

            .nav-tab {
                padding: 6px 12px;
                font-size: 13px;
            }

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

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

            .category-hero h1 {
                font-size: 21px;
            }

            .badge {
                font-size: 11px;
                padding: 2px 8px;
            }
        }

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

/* roulang page: category5 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }
        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }
        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }
        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }
        .btn-subscribe-nav:active {
            transform: scale(0.97);
        }
        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }
        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            color: var(--text-muted);
            white-space: nowrap;
            transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
            flex-shrink: 0;
        }
        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-tab.active {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
            box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.3), 0 0 16px rgba(34, 211, 238, 0.12);
        }
        .nav-tab:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 12px 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: var(--cyan);
        }
        .breadcrumb .arrow {
            color: var(--gray-blue);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-light);
            font-weight: 600;
        }
        /* 分类H1区 */
        .category-hero {
            padding: 32px 0 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            background: linear-gradient(180deg, rgba(47, 125, 255, 0.04) 0%, rgba(11, 18, 32, 0) 100%);
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .category-hero .subtitle {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 700px;
            line-height: 1.8;
        }
        @media (max-width: 640px) {
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero {
                padding: 24px 0 32px;
            }
        }
        /* 卡片列表 */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            padding: 40px 0;
        }
        @media (max-width: 768px) {
            .cards-grid {
                grid-template-columns: 1fr;
            }
        }
        .card-item {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .card-item:hover {
            transform: translateY(-2px);
            border-color: rgba(34, 211, 238, 0.35);
            box-shadow: 0 24px 56px rgba(0, 0, 0, 0.4);
        }
        .card-image-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .card-item:hover .card-image-wrap img {
            transform: scale(1.04);
        }
        .card-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0) 40%, rgba(11, 18, 32, 0.7) 100%);
            pointer-events: none;
        }
        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: rgba(11, 18, 32, 0.75);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--cyan);
            letter-spacing: 0.02em;
        }
        .card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
            letter-spacing: 0.03em;
            font-variant-numeric: tabular-nums;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-light);
            line-height: 1.5;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-link-btn {
            align-self: flex-start;
            padding: 9px 20px;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: rgba(34, 211, 238, 0.08);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.25);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            cursor: pointer;
        }
        .card-link-btn:hover {
            background: rgba(34, 211, 238, 0.16);
            box-shadow: 0 0 16px rgba(34, 211, 238, 0.2);
        }
        .card-link-btn:active {
            transform: scale(0.97);
        }
        .card-link-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        /* 首页链接按钮 */
        .btn-home-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-light);
            border: 1px solid rgba(255, 255, 255, 0.12);
            transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .btn-home-link:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.22);
            box-shadow: 0 0 18px rgba(255, 255, 255, 0.06);
        }
        .btn-home-link:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        /* 相关专题入口 */
        .related-topics {
            padding: 48px 0;
            background: rgba(255, 255, 255, 0.02);
        }
        .section-heading {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 20px;
        }
        .topic-pills {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .topic-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-main);
            transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
            cursor: pointer;
        }
        .topic-pill:hover {
            border-color: rgba(34, 211, 238, 0.4);
            background: rgba(34, 211, 238, 0.08);
            color: var(--cyan);
        }
        .topic-pill:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        /* FAQ */
        .faq-section {
            padding: 48px 0;
        }
        .faq-item {
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            background: transparent;
            transition: background-color 0.2s ease;
            border: none;
            width: 100%;
            text-align: left;
            position: relative;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.04);
        }
        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 16px;
            bottom: 16px;
            width: 2px;
            background: var(--cyan);
            border-radius: 2px;
            opacity: 0;
            transition: opacity 0.2s ease;
        }
        .faq-item.open .faq-question::before {
            opacity: 1;
        }
        .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            color: var(--cyan);
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 20px 18px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* 订阅CTA */
        .subscribe-section {
            padding: 56px 0;
        }
        .subscribe-card {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .subscribe-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--cyan), var(--yellow));
            border-radius: 2px 2px 0 0;
        }
        .subscribe-heading {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }
        .subscribe-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .subscribe-form {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr auto;
            gap: 14px;
            align-items: end;
        }
        @media (max-width: 768px) {
            .subscribe-form {
                grid-template-columns: 1fr;
            }
        }
        .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .form-field label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }
        .form-field input,
        .form-field select {
            height: 42px;
            padding: 0 14px;
            background: rgba(11, 18, 32, 0.7);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            width: 100%;
        }
        .form-field input:focus,
        .form-field select:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
            outline: none;
        }
        .form-field input::placeholder {
            color: var(--gray-blue);
        }
        .btn-subscribe-main {
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(47, 125, 255, 0.4);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        .btn-subscribe-main:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 30px rgba(47, 125, 255, 0.55);
        }
        .btn-subscribe-main:active {
            transform: scale(0.97);
        }
        .btn-subscribe-main:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        /* 更新说明 */
        .update-note {
            padding: 40px 0 56px;
        }
        .update-note-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            flex-wrap: wrap;
        }
        .update-note-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(245, 179, 1, 0.12);
            border: 1px solid rgba(245, 179, 1, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--yellow);
            font-size: 18px;
        }
        .update-note-text {
            flex: 1;
            min-width: 200px;
        }
        .update-note-text p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .update-note-text .key-points {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }
        .update-note-text .key-point {
            font-size: 12px;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-pill);
            color: var(--text-main);
        }
        /* 页脚 */
        .site-footer {
            background: rgba(11, 18, 32, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 10px;
            max-width: 300px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover {
            color: var(--cyan);
        }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .copyright {
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category6 */
:root {
      --bg-deep: #0B1220;
      --bg-mid: #0F172A;
      --primary: #2F7DFF;
      --primary-hover: #3B82F6;
      --cyan: #22D3EE;
      --cyan-glow: rgba(34, 211, 238, 0.55);
      --yellow: #F5B301;
      --green: #10B981;
      --red: #F04438;
      --gray-blue: #94A3B8;
      --text-main: #E2E8F0;
      --text-light: #F8FAFC;
      --text-muted: #94A3B8;
      --glass-bg: rgba(255, 255, 255, 0.06);
      --glass-border: rgba(255, 255, 255, 0.12);
      --glass-blur: blur(18px);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
      --space-section: 80px;
      --space-section-mobile: 48px;
      --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.8;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      line-height: inherit;
      color: inherit;
    }
    button {
      cursor: pointer;
      border: none;
      background: none;
    }
    input, select, textarea {
      border: none;
      outline: none;
      background: none;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }
    @media (max-width: 640px) {
      .container {
        padding: 0 16px;
      }
    }

    /* 导航样式 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(11, 18, 32, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .nav-top-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
      gap: 16px;
      flex-wrap: wrap;
    }
    .nav-logo {
      font-size: 22px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-light);
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .nav-logo-icon {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--cyan));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      color: #fff;
      flex-shrink: 0;
    }
    .nav-search {
      flex: 1;
      max-width: 360px;
      min-width: 200px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 16px;
      height: 42px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-pill);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .nav-search:focus-within {
      border-color: var(--cyan);
      box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
    }
    .nav-search input {
      flex: 1;
      background: transparent;
      color: var(--text-main);
      font-size: 14px;
      border: none;
      outline: none;
    }
    .nav-search input::placeholder {
      color: var(--text-muted);
    }
    .nav-search svg {
      width: 18px;
      height: 18px;
      color: var(--text-muted);
      flex-shrink: 0;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn-subscribe-nav {
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-pill);
      background: var(--primary);
      color: #fff;
      border: 1px solid rgba(47, 125, 255, 0.5);
      box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
      transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
      white-space: nowrap;
    }
    .btn-subscribe-nav:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
    }
    .btn-subscribe-nav:active {
      transform: scale(0.97);
    }
    .nav-tabs-row {
      display: flex;
      align-items: center;
      gap: 4px;
      padding: 8px 0 12px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
      -webkit-overflow-scrolling: touch;
    }
    .nav-tabs-row::-webkit-scrollbar {
      display: none;
    }
    .nav-tab {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-pill);
      white-space: nowrap;
      border: 1px solid transparent;
      transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .nav-tab:hover {
      color: var(--text-light);
      background: var(--glass-bg);
    }
    .nav-tab.active {
      color: var(--cyan);
      background: rgba(34, 211, 238, 0.1);
      border-color: rgba(34, 211, 238, 0.25);
      box-shadow: 0 0 14px rgba(34, 211, 238, 0.15);
    }
    .nav-tab:focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 2px;
    }

    /* 面包屑 */
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 12px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    .breadcrumb a:hover {
      color: var(--cyan);
    }
    .breadcrumb .separator {
      color: rgba(148, 163, 184, 0.5);
    }
    .breadcrumb .current {
      color: var(--text-main);
      font-weight: 500;
    }

    /* 分类页H1区 */
    .category-hero {
      padding: 48px 0 40px;
      position: relative;
      background: radial-gradient(ellipse at 30% 20%, rgba(47, 125, 255, 0.12) 0%, transparent 60%),
                  radial-gradient(ellipse at 70% 80%, rgba(34, 211, 238, 0.08) 0%, transparent 55%);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .category-hero-inner {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 32px;
      flex-wrap: wrap;
    }
    .category-hero-text {
      max-width: 680px;
    }
    .category-hero-text h1 {
      font-size: 32px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-light);
      line-height: 1.3;
      margin-bottom: 12px;
    }
    @media (min-width: 768px) {
      .category-hero-text h1 {
        font-size: 40px;
      }
    }
    .category-hero-text .subtitle {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 560px;
    }
    .category-hero-stat {
      display: flex;
      align-items: center;
      gap: 24px;
      flex-shrink: 0;
      flex-wrap: wrap;
    }
    .hero-stat-chip {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 16px 22px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      min-width: 110px;
      text-align: center;
    }
    .hero-stat-chip .stat-value {
      font-size: 28px;
      font-weight: 800;
      color: var(--yellow);
      letter-spacing: -0.02em;
      font-variant-numeric: tabular-nums;
      line-height: 1.2;
    }
    .hero-stat-chip .stat-label {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
      white-space: nowrap;
    }

    /* 通用section */
    .section {
      padding: var(--space-section) 0;
    }
    @media (max-width: 640px) {
      .section {
        padding: var(--space-section-mobile) 0;
      }
    }
    .section-title {
      font-size: 26px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-light);
      margin-bottom: 8px;
      line-height: 1.3;
    }
    .section-subtitle {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 28px;
      line-height: 1.7;
      max-width: 640px;
    }

    /* 卡片网格 */
    .card-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
    }
    @media (min-width: 640px) {
      .card-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (min-width: 1024px) {
      .card-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    /* 通用卡片 */
    .news-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      box-shadow: var(--shadow-card);
      transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      border-color: rgba(34, 211, 238, 0.35);
      transform: translateY(-2px);
      box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    }
    .news-card-img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }
    .news-card-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-card-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      font-size: 12px;
      font-weight: 600;
      color: var(--cyan);
      background: rgba(34, 211, 238, 0.1);
      border: 1px solid rgba(34, 211, 238, 0.2);
      border-radius: var(--radius-pill);
      margin-bottom: 10px;
      width: fit-content;
    }
    .news-card-date {
      font-size: 12px;
      color: var(--text-muted);
      font-variant-numeric: tabular-nums;
      margin-bottom: 8px;
    }
    .news-card-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-light);
      letter-spacing: -0.01em;
      line-height: 1.5;
      margin-bottom: 10px;
    }
    .news-card-summary {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      flex: 1;
    }
    .news-card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--cyan);
      font-size: 14px;
      font-weight: 600;
      margin-top: 14px;
      transition: color 0.2s ease;
    }
    .news-card-link:hover {
      color: var(--primary-hover);
      text-decoration: underline;
    }

    /* 时间线条目 */
    .timeline-section {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .timeline-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      padding: 16px 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      transition: border-color 0.2s ease;
    }
    .timeline-item:hover {
      border-color: rgba(34, 211, 238, 0.3);
    }
    .timeline-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 12px rgba(34, 211, 238, 0.6);
      flex-shrink: 0;
      margin-top: 8px;
    }
    .timeline-content {
      flex: 1;
    }
    .timeline-date {
      font-size: 12px;
      color: var(--text-muted);
      font-variant-numeric: tabular-nums;
      margin-bottom: 4px;
    }
    .timeline-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-light);
      line-height: 1.5;
      margin-bottom: 4px;
    }
    .timeline-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 标签云 */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-cloud a {
      padding: 8px 16px;
      font-size: 13px;
      font-weight: 500;
      color: var(--text-muted);
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-pill);
      transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
    }
    .tag-cloud a:hover {
      color: var(--cyan);
      border-color: rgba(34, 211, 238, 0.35);
      background: rgba(34, 211, 238, 0.08);
    }

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 760px;
    }
    .faq-item {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.open {
      border-color: rgba(34, 211, 238, 0.3);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 16px 20px;
      text-align: left;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-light);
      transition: color 0.2s ease;
    }
    .faq-question:hover {
      color: var(--cyan);
    }
    .faq-question .faq-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(34, 211, 238, 0.1);
      color: var(--cyan);
      font-size: 16px;
      flex-shrink: 0;
      transition: transform 0.25s ease;
    }
    .faq-item.open .faq-question .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 20px;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px;
    }
    .faq-answer p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 订阅CTA */
    .subscribe-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
    }
    .subscribe-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--cyan), var(--yellow));
      opacity: 0.8;
    }
    .subscribe-card h2 {
      font-size: 24px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .subscribe-card p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .subscribe-form {
      display: grid;
      grid-template-columns: 1fr;
      gap: 14px;
    }
    @media (min-width: 640px) {
      .subscribe-form {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (min-width: 1024px) {
      .subscribe-form {
        grid-template-columns: 1fr 1fr 1fr auto;
        align-items: end;
      }
    }
    .form-field {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-field label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 500;
    }
    .form-field input,
    .form-field select {
      padding: 12px 16px;
      font-size: 14px;
      color: var(--text-light);
      background: rgba(11, 18, 32, 0.7);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .form-field input:focus,
    .form-field select:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
    }
    .form-field select option {
      background: var(--bg-mid);
      color: var(--text-main);
    }
    .btn-primary {
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 700;
      border-radius: var(--radius-pill);
      background: var(--primary);
      color: #fff;
      border: 1px solid rgba(47, 125, 255, 0.5);
      box-shadow: 0 0 22px rgba(47, 125, 255, 0.4);
      transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
      white-space: nowrap;
      height: 48px;
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 0 32px rgba(47, 125, 255, 0.55);
    }
    .btn-primary:active {
      transform: scale(0.97);
    }

    /* 更新说明 */
    .update-note {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 18px 20px;
      background: rgba(34, 211, 238, 0.05);
      border: 1px solid rgba(34, 211, 238, 0.15);
      border-radius: var(--radius-md);
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .update-note svg {
      width: 20px;
      height: 20px;
      color: var(--cyan);
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* 分类说明导览 */
    .guide-block {
      padding: 28px 32px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
    }
    .guide-block h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .guide-block p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 相关专题入口 */
    .related-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 16px;
    }
    @media (min-width: 640px) {
      .related-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }
    .related-card {
      display: block;
      padding: 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      transition: border-color 0.2s ease, transform 0.2s ease;
      text-align: center;
    }
    .related-card:hover {
      border-color: rgba(34, 211, 238, 0.35);
      transform: translateY(-2px);
    }
    .related-card .related-icon {
      font-size: 28px;
      margin-bottom: 8px;
    }
    .related-card h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 4px;
    }
    .related-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 页脚 */
    .site-footer {
      background: #080F1C;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 56px 0 32px;
      margin-top: 40px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
      margin-bottom: 32px;
    }
    @media (min-width: 640px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
      }
    }
    .footer-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 300px;
    }
    .footer-col h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-col ul a {
      font-size: 13px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    .footer-col ul a:hover {
      color: var(--cyan);
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .copyright {
      font-size: 12px;
      color: var(--text-muted);
    }
    .footer-links {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .footer-links a {
      font-size: 12px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    .footer-links a:hover {
      color: var(--cyan);
    }

    /* 响应式微调 */
    @media (max-width: 640px) {
      .nav-top-row {
        gap: 10px;
      }
      .nav-search {
        order: 3;
        max-width: 100%;
        min-width: 100%;
      }
      .category-hero-inner {
        flex-direction: column;
        gap: 20px;
      }
      .hero-stat-chip {
        min-width: 90px;
        padding: 12px 16px;
      }
      .hero-stat-chip .stat-value {
        font-size: 22px;
      }
      .subscribe-card {
        padding: 24px 18px;
      }
    }
    @media (max-width: 520px) {
      .nav-tab {
        padding: 6px 12px;
        font-size: 13px;
      }
      .section-title {
        font-size: 22px;
      }
      .news-card-title {
        font-size: 15px;
      }
    }

/* roulang page: category7 */
:root {
            --bg-deep: #0B1220;
            --bg-mid: #0F172A;
            --primary: #2F7DFF;
            --primary-hover: #3B82F6;
            --cyan: #22D3EE;
            --cyan-glow: rgba(34, 211, 238, 0.55);
            --yellow: #F5B301;
            --green: #10B981;
            --red: #F04438;
            --gray-blue: #94A3B8;
            --text-main: #E2E8F0;
            --text-light: #F8FAFC;
            --text-muted: #94A3B8;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-blur: blur(18px);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 22px rgba(34, 211, 238, 0.55);
            --space-section: 80px;
            --space-section-mobile: 48px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
        }

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

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

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

        input,
        select,
        textarea {
            border: none;
            outline: none;
            background: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 16px;
        }

        @media (min-width: 640px) {
            .container {
                padding: 0 24px;
            }
        }

        /* 导航样式 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .nav-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
            flex-wrap: wrap;
        }

        .nav-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-search {
            flex: 1;
            max-width: 360px;
            min-width: 200px;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 16px;
            height: 42px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-pill);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .nav-search:focus-within {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            color: var(--text-main);
            font-size: 14px;
            border: none;
            outline: none;
        }

        .nav-search input::placeholder {
            color: var(--text-muted);
        }

        .nav-search svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-subscribe-nav {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 16px rgba(47, 125, 255, 0.35);
            transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-subscribe-nav:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 24px rgba(47, 125, 255, 0.5);
        }

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

        .nav-tabs-row {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 8px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            -webkit-overflow-scrolling: touch;
        }

        .nav-tabs-row::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            color: var(--text-muted);
            white-space: nowrap;
            border: 1px solid transparent;
            transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
        }

        .nav-tab:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-tab.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border-color: rgba(34, 211, 238, 0.3);
        }

        .nav-tab:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.25);
        }

        .breadcrumb .current {
            color: var(--cyan);
        }

        /* 分类H1横条 */
        .category-hero {
            padding: 24px 0 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 40px;
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .category-hero .lead {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }

        /* 板块通用 */
        .section {
            padding: var(--space-section-mobile) 0;
        }

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

        .section-title {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* 玻璃卡片通用 */
        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
        }

        .glass-card:hover {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4), 0 0 16px rgba(34, 211, 238, 0.12);
            transform: translateY(-2px);
        }

        /* 问答列表卡片 */
        .qa-card {
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding: 20px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
            height: 100%;
        }

        .qa-card:hover {
            border-color: rgba(34, 211, 238, 0.35);
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4), 0 0 20px rgba(34, 211, 238, 0.15);
            transform: translateY(-3px);
        }

        .qa-card .qa-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .qa-badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 600;
            background: rgba(34, 211, 238, 0.1);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.25);
        }

        .qa-badge.yellow {
            background: rgba(245, 179, 1, 0.1);
            color: var(--yellow);
            border-color: rgba(245, 179, 1, 0.25);
        }

        .qa-badge.green {
            background: rgba(16, 185, 129, 0.1);
            color: var(--green);
            border-color: rgba(16, 185, 129, 0.25);
        }

        .qa-card .qa-title {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-light);
            line-height: 1.5;
        }

        .qa-card .qa-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            flex: 1;
        }

        .qa-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan);
            transition: gap 0.25s ease, color 0.2s ease;
        }

        .qa-readmore:hover {
            color: var(--text-light);
            gap: 10px;
        }

        .qa-card .qa-thumb {
            width: 100%;
            height: 160px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
        }

        .qa-card .qa-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (min-width: 640px) {
            .qa-card {
                flex-direction: row;
                align-items: stretch;
                gap: 20px;
            }
            .qa-card .qa-thumb {
                width: 220px;
                height: 100%;
                min-height: 160px;
            }
            .qa-card .qa-content {
                flex: 1;
                display: flex;
                flex-direction: column;
            }
        }

        /* 热门话题标签 */
        .topic-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
            cursor: pointer;
        }

        .topic-tag:hover {
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.4);
            background: rgba(34, 211, 238, 0.08);
        }

        .topic-tag .tag-count {
            margin-left: 6px;
            font-size: 11px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 规则速查数据卡 */
        .rule-stat-card {
            padding: 24px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .rule-stat-card:hover {
            border-color: rgba(34, 211, 238, 0.3);
            transform: translateY(-3px);
        }

        .rule-stat-card .stat-number {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--yellow);
            font-variant-numeric: tabular-nums;
        }

        .rule-stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* FAQ 手风琴 */
        .faq-item {
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(34, 211, 238, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-light);
            position: relative;
            transition: background-color 0.25s ease;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.04);
        }

        .faq-question .faq-indicator {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }

        .faq-question .faq-indicator svg {
            width: 14px;
            height: 14px;
            color: var(--cyan);
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-question .faq-indicator svg {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            border-top: 1px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 20px;
            border-top-color: rgba(255, 255, 255, 0.08);
        }

        /* CTA 表单 */
        .cta-form-card {
            padding: 32px 24px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            box-shadow: var(--shadow-card);
        }

        .cta-form-card .form-input {
            display: block;
            width: 100%;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 14px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .cta-form-card .form-input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .cta-form-card .form-input::placeholder {
            color: rgba(148, 163, 184, 0.6);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            background: var(--primary);
            color: #fff;
            border: 1px solid rgba(47, 125, 255, 0.5);
            box-shadow: 0 0 22px rgba(47, 125, 255, 0.45);
            transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 0 30px rgba(47, 125, 255, 0.55), 0 0 10px rgba(34, 211, 238, 0.3);
        }

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

        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        /* 页脚样式 */
        .site-footer {
            background: rgba(11, 18, 32, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

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

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
            }
        }

        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: var(--cyan);
        }

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-muted);
        }

        @media (min-width: 640px) {
            .footer-bottom {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
            }
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 12px;
            transition: color 0.2s ease;
        }

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

        /* 更新说明板块 */
        .update-note {
            padding: 24px;
            border-radius: var(--radius-lg);
            background: rgba(16, 185, 129, 0.06);
            border: 1px solid rgba(16, 185, 129, 0.2);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }

        .update-note .note-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .update-note .note-icon svg {
            width: 16px;
            height: 16px;
            color: var(--green);
        }

        .update-note .note-content {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }

        .update-note .note-content strong {
            color: var(--text-light);
            font-weight: 600;
        }

        /* 相关专题磁贴 */
        .league-tile {
            display: block;
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16/9;
            border: 1px solid var(--glass-border);
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }

        .league-tile:hover {
            border-color: rgba(34, 211, 238, 0.4);
            transform: translateY(-3px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
        }

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

        .league-tile .tile-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.85) 20%, rgba(11, 18, 32, 0.3) 60%, transparent 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }

        .league-tile .tile-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.01em;
        }

        .league-tile .tile-sub {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 2px;
        }