/* roulang page: index */
:root {
            --color-primary: #2563EB;
            --color-primary-light: #3B82F6;
            --color-secondary: #FF8C42;
            --color-bg: #F4F7FB;
            --color-text: #1E293B;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-card: #FFFFFF;
            --border-radius: 12px;
            --shadow-card: 0 4px 12px rgba(15, 23, 42, 0.08);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.12);
            --pixel-cyan: #22D3EE;
            --pixel-pink: #EC4899;
            --pixel-orange: #FF8C42;
            --font-mono: 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            position: relative;
            min-height: 100vh;
        }

        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: 
                linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
            z-index: 0;
        }

        body > * {
            position: relative;
            z-index: 1;
        }

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

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

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

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

        /* ========== 导航样式 ========== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 16px;
            right: 16px;
            z-index: 100;
            transition: all 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
            left: 8px;
            right: 8px;
        }

        .site-nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid var(--color-border);
            border-radius: 16px;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
            transition: all 0.3s ease;
        }

        .site-header.scrolled .site-nav {
            box-shadow: 0 8px 32px rgba(15, 23, 42, 0.14);
            background: rgba(255, 255, 255, 0.98);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-logo-icon {
            width: 36px;
            height: 36px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2px;
            padding: 4px;
            background: var(--color-primary);
            border-radius: 8px;
            flex-shrink: 0;
        }

        .nav-logo-icon span {
            background: #fff;
            border-radius: 2px;
            display: block;
        }

        .nav-logo-icon span:nth-child(2),
        .nav-logo-icon span:nth-child(4),
        .nav-logo-icon span:nth-child(6),
        .nav-logo-icon span:nth-child(8) {
            background: var(--pixel-cyan);
        }

        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.01em;
            color: var(--color-text);
            white-space: nowrap;
        }

        .nav-logo-text .accent {
            color: var(--color-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-links a {
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.06);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            border: 2px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: #1D4ED8;
            border-color: #1D4ED8;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .nav-cta:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }

        .nav-hamburger {
            display: none;
            background: none;
            border: 2px solid var(--color-border);
            border-radius: 8px;
            padding: 10px 12px;
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--color-text);
        }

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

        .nav-hamburger:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 12px;
            padding: 12px;
            margin-top: 8px;
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
            flex-direction: column;
            gap: 4px;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.2s ease;
        }

        .mobile-menu a:hover {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.06);
        }

        .mobile-menu a.active {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }

        /* ========== 通用板块样式 ========== */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--font-mono);
            font-size: 12px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.08);
            padding: 6px 14px;
            border-radius: 6px;
            margin-bottom: 16px;
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--color-text);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-muted);
            line-height: 1.8;
            max-width: 640px;
            margin-bottom: 40px;
        }

        /* ========== Hero 指标看板 ========== */
        .hero-section {
            padding-top: 140px;
            padding-bottom: 72px;
            background-image: url('/assets/images/938032df8d7a1d06.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(244, 247, 251, 0.92) 0%, rgba(244, 247, 251, 0.85) 50%, rgba(244, 247, 251, 0.75) 100%);
            z-index: 0;
        }

        .hero-section .container {
            position: relative;
            z-index: 1;
        }

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

        .hero-left h1 {
            font-size: 40px;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .hero-left h1 .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero-left .hero-sub {
            font-size: 17px;
            color: var(--color-muted);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 10px;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.25s ease;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            background: #1D4ED8;
            border-color: #1D4ED8;
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--color-primary);
            border-radius: 10px;
            font-weight: 600;
            font-size: 16px;
            border: 2px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-outline:hover {
            background: rgba(37, 99, 235, 0.06);
            transform: translateY(-4px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

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

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

        .metric-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 12px;
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

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

        .metric-card .pixel-corner {
            position: absolute;
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .metric-card .pixel-corner.tl { top: -4px; left: -4px; }
        .metric-card .pixel-corner.tr { top: -4px; right: -4px; background: var(--pixel-cyan); }
        .metric-card .pixel-corner.bl { bottom: -4px; left: -4px; background: var(--pixel-orange); }
        .metric-card .pixel-corner.br { bottom: -4px; right: -4px; background: var(--pixel-pink); }

        .metric-value {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 14px;
            color: var(--color-muted);
            font-weight: 500;
        }

        .metric-bar {
            margin-top: 12px;
            height: 4px;
            background: rgba(37, 99, 235, 0.1);
            border-radius: 2px;
            overflow: hidden;
        }

        .metric-bar-fill {
            height: 100%;
            background: var(--color-primary);
            border-radius: 2px;
            transition: width 0.8s ease;
        }

        .metric-bar-fill.cyan { background: var(--pixel-cyan); }
        .metric-bar-fill.orange { background: var(--pixel-orange); }
        .metric-bar-fill.pink { background: var(--pixel-pink); }

        /* ========== 服务矩阵 ========== */
        .service-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 20px;
        }

        .service-left {
            display: grid;
            gap: 20px;
        }

        .service-right {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .service-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: var(--border-radius);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            cursor: default;
        }

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

        .service-card.large {
            padding: 36px;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 22px;
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .service-card p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        /* ========== 结果对比 ========== */
        .compare-wrapper {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .compare-item {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 16px 20px;
            transition: all 0.3s ease;
        }

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

        .compare-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
            gap: 12px;
            flex-wrap: wrap;
        }

        .compare-name {
            font-weight: 600;
            font-size: 15px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .compare-badge {
            font-family: var(--font-mono);
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 4px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .compare-badge.free { background: rgba(34, 211, 238, 0.15); color: #0891B2; }
        .compare-badge.hd { background: rgba(37, 99, 235, 0.12); color: var(--color-primary); }
        .compare-badge.speed { background: rgba(255, 140, 66, 0.15); color: #EA580C; }
        .compare-badge.offline { background: rgba(236, 72, 153, 0.12); color: #DB2777; }

        .compare-bar-bg {
            height: 8px;
            background: rgba(37, 99, 235, 0.08);
            border-radius: 4px;
            overflow: hidden;
        }

        .compare-bar-fill {
            height: 100%;
            background: var(--color-primary);
            border-radius: 4px;
            transition: width 0.6s ease;
        }

        .compare-bar-fill.cyan { background: var(--pixel-cyan); }
        .compare-bar-fill.orange { background: var(--pixel-orange); }
        .compare-bar-fill.pink { background: var(--pixel-pink); }

        .compare-level {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 600;
        }

        /* ========== 里程碑时间轴 ========== */
        .timeline {
            display: flex;
            gap: 0;
            position: relative;
            padding: 24px 0;
            overflow-x: auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 52px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-border);
            z-index: 0;
        }

        .timeline-node {
            flex: 1;
            min-width: 160px;
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }

        .timeline-dot {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: #fff;
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            color: var(--color-primary);
            background: #fff;
            position: relative;
            z-index: 1;
        }

        .timeline-dot.done {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .timeline-dot.current {
            background: var(--pixel-cyan);
            color: #fff;
            border-color: var(--pixel-cyan);
        }

        .timeline-year {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 4px;
        }

        .timeline-desc {
            font-size: 12px;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ========== 资讯列表 ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            cursor: pointer;
        }

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

        .news-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #D1D5DB;
            position: relative;
        }

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

        .news-card:hover .news-cover img {
            transform: scale(1.06);
        }

        .news-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 5px;
            letter-spacing: 0.05em;
        }

        .news-badge.hd { background: var(--color-primary); color: #fff; }
        .news-badge.free { background: var(--pixel-cyan); color: #083344; }
        .news-badge.daily { background: var(--pixel-orange); color: #fff; }
        .news-badge.new { background: var(--pixel-pink); color: #fff; }

        .news-body {
            padding: 20px;
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--color-muted);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.5;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-body p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
        }

        .news-link:hover {
            gap: 8px;
        }

        /* ========== 平台保障 ========== */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .guarantee-item {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 20px 16px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .guarantee-item:hover {
            border-color: var(--color-primary-light);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .guarantee-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 18px;
            margin: 0 auto 12px;
        }

        .guarantee-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ========== 快速解答 ========== */
        .quick-qa-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .quick-qa-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .quick-qa-card:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-hover);
        }

        .quick-qa-card .q {
            font-weight: 600;
            font-size: 14px;
            color: var(--color-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .quick-qa-card .a {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
        }

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

        .faq-item {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

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

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

        .faq-question {
            width: 100%;
            padding: 18px 20px;
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color 0.2s ease;
        }

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

        .faq-question:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: -3px;
            border-radius: 10px;
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border: 2px solid var(--color-border);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-size: 16px;
            color: var(--color-primary);
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-icon {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 20px;
            background: rgba(37, 99, 235, 0.03);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 16px 20px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        /* ========== 分类入口 ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .category-entry-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            cursor: pointer;
        }

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

        .category-entry-cover {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #D1D5DB;
        }

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

        .category-entry-card:hover .category-entry-cover img {
            transform: scale(1.05);
        }

        .category-entry-body {
            padding: 16px 20px;
        }

        .category-entry-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .category-entry-body p {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.5;
        }

        /* ========== 更新日历 ========== */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 10px;
        }

        .calendar-day {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 16px 10px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .calendar-day:hover {
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
        }

        .calendar-day.today {
            border-color: var(--color-primary);
            background: rgba(37, 99, 235, 0.04);
        }

        .calendar-day-name {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--color-muted);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .calendar-day-num {
            font-family: var(--font-mono);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .calendar-update-count {
            font-size: 12px;
            color: var(--pixel-orange);
            font-weight: 600;
            display: block;
        }

        .calendar-update-count.zero {
            color: var(--color-muted);
            font-weight: 400;
        }

        /* ========== 设备/环境提示 ========== */
        .device-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .device-item {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .device-item:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-hover);
        }

        .device-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(37, 99, 235, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 18px;
        }

        .device-item h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 2px;
        }

        .device-item p {
            font-size: 12px;
            color: var(--color-muted);
            line-height: 1.4;
        }

        /* ========== 转化表单 ========== */
        .form-section {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 16px;
            padding: 48px;
            box-shadow: var(--shadow-card);
            text-align: center;
        }

        .form-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .form-section p {
            font-size: 15px;
            color: var(--color-muted);
            margin-bottom: 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 560px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input,
        .subscribe-form select {
            padding: 12px 16px;
            border: 2px solid var(--color-border);
            border-radius: 8px;
            font-size: 15px;
            color: var(--color-text);
            background: #fff;
            transition: all 0.2s ease;
            min-width: 140px;
            flex: 1;
        }

        .subscribe-form input:focus,
        .subscribe-form select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
        }

        .subscribe-form input::placeholder {
            color: #94A3B8;
        }

        .subscribe-form .btn-primary {
            padding: 12px 28px;
            flex-shrink: 0;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 56px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .nav-logo-text {
            color: #F1F5F9;
            margin-bottom: 12px;
            display: block;
        }

        .footer-brand p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .footer-col h3 {
            font-size: 14px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

        .footer-col ul a {
            font-size: 14px;
            color: #94A3B8;
            transition: color 0.2s ease;
        }

        .footer-col ul a:hover {
            color: #F1F5F9;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-copy {
            font-size: 13px;
            color: #64748B;
        }

        .footer-disclaimer {
            font-size: 12px;
            color: #64748B;
            max-width: 600px;
            line-height: 1.6;
        }

        /* ========== 响应式断点 ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-left h1 {
                font-size: 34px;
            }
            .hero-right {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .service-right {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .quick-qa-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .calendar-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .device-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .hero-section {
                padding-top: 120px;
                padding-bottom: 48px;
            }
            .hero-left h1 {
                font-size: 28px;
            }
            .hero-right {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .metric-value {
                font-size: 24px;
            }
            .metric-card {
                padding: 16px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-hamburger {
                display: block;
            }
            .site-nav {
                padding: 10px 14px;
            }
            .service-right {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-qa-grid {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .device-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-section {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input,
            .subscribe-form select {
                width: 100%;
                flex: none;
            }
            .timeline {
                flex-direction: column;
                gap: 16px;
            }
            .timeline::before {
                display: none;
            }
            .timeline-node {
                min-width: auto;
                padding: 0;
                text-align: left;
                display: flex;
                gap: 16px;
                align-items: flex-start;
            }
            .timeline-dot {
                margin: 0;
                flex-shrink: 0;
            }
            .timeline-content {
                flex: 1;
            }
        }

        @media (max-width: 520px) {
            .hero-right {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .metric-card {
                padding: 12px;
            }
            .metric-value {
                font-size: 20px;
            }
            .metric-label {
                font-size: 12px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .calendar-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

        /* 可访问性 */
        :focus-visible {
            outline: 3px solid #22D3EE;
            outline-offset: 2px;
        }

        ::selection {
            background: rgba(37, 99, 235, 0.2);
            color: var(--color-text);
        }

/* roulang page: category1 */
:root {
            --color-primary: #2563EB;
            --color-primary-light: #3B82F6;
            --color-secondary: #FF8C42;
            --color-bg: #F4F7FB;
            --color-text: #1E293B;
            --color-muted: #64748B;
            --color-border: #E2E8F0;
            --color-card: #FFFFFF;
            --border-radius: 12px;
            --shadow-card: 0 4px 12px rgba(15, 23, 42, 0.08);
            --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.12);
            --pixel-cyan: #22D3EE;
            --pixel-pink: #EC4899;
            --pixel-orange: #FF8C42;
            --font-mono: 'Courier New', monospace;
            --font-sans: system-ui, -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            position: relative;
            min-height: 100vh;
        }
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: 
                linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
            z-index: 0;
        }
        body > * {
            position: relative;
            z-index: 1;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 导航样式 ========== */
        .site-header {
            position: fixed;
            top: 16px;
            left: 16px;
            right: 16px;
            z-index: 100;
            transition: all 0.3s ease;
        }
        .site-header.scrolled {
            top: 8px;
            left: 8px;
            right: 8px;
        }
        .site-nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid var(--color-border);
            border-radius: 16px;
            padding: 10px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
            transition: all 0.3s ease;
        }
        .site-header.scrolled .site-nav {
            box-shadow: 0 8px 32px rgba(15, 23, 42, 0.14);
            background: rgba(255, 255, 255, 0.98);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2px;
            padding: 4px;
            background: var(--color-primary);
            border-radius: 8px;
            flex-shrink: 0;
        }
        .nav-logo-icon span {
            background: #fff;
            border-radius: 2px;
            display: block;
        }
        .nav-logo-icon span:nth-child(2),
        .nav-logo-icon span:nth-child(4),
        .nav-logo-icon span:nth-child(6),
        .nav-logo-icon span:nth-child(8) {
            background: var(--pixel-cyan);
        }
        .nav-logo-text {
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.01em;
            color: var(--color-text);
            white-space: nowrap;
        }
        .nav-logo-text .accent {
            color: var(--color-primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.06);
        }
        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            border: 2px solid var(--color-primary);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #1D4ED8;
            border-color: #1D4ED8;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
        }
        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .nav-cta:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }
        .nav-hamburger {
            display: none;
            background: none;
            border: 2px solid var(--color-border);
            border-radius: 8px;
            padding: 10px 12px;
            cursor: pointer;
            transition: all 0.2s ease;
            color: var(--color-text);
        }
        .nav-hamburger:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }
        .nav-hamburger:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }
        .mobile-menu {
            display: none;
            background: rgba(255, 255, 255, 0.98);
            border: 2px solid var(--color-border);
            border-radius: 12px;
            padding: 12px;
            margin-top: 8px;
            box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
        }
        .mobile-menu a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.2s ease;
        }
        .mobile-menu a:hover {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.06);
        }
        .mobile-menu a.active {
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.1);
            font-weight: 600;
        }
        .mobile-menu.open {
            display: block;
        }

        /* ========== 通用板块样式 ========== */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: rgba(255, 255, 255, 0.6);
            border-top: 2px solid var(--color-border);
            border-bottom: 2px solid var(--color-border);
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }
        .section-header p {
            color: var(--color-muted);
            font-size: 16px;
            max-width: 720px;
        }
        .pixel-badge {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 6px;
            border: 2px solid var(--color-primary);
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.06);
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .pixel-badge.orange {
            border-color: var(--pixel-orange);
            color: var(--pixel-orange);
            background: rgba(255, 140, 66, 0.08);
        }
        .pixel-badge.cyan {
            border-color: var(--pixel-cyan);
            color: #0891B2;
            background: rgba(34, 211, 238, 0.08);
        }
        .pixel-badge.pink {
            border-color: var(--pixel-pink);
            color: var(--pixel-pink);
            background: rgba(236, 72, 153, 0.08);
        }

        /* ========== 分类头部 ========== */
        .category-hero {
            padding: 120px 0 48px;
            background: transparent;
        }
        .category-hero-inner {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: start;
        }
        .category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .category-hero .desc {
            color: var(--color-muted);
            font-size: 16px;
            max-width: 620px;
            line-height: 1.8;
        }
        .category-stats {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .cat-stat-card {
            background: var(--color-card);
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 16px;
            text-align: center;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .cat-stat-card::before,
        .cat-stat-card::after {
            content: '';
            position: absolute;
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .cat-stat-card::before {
            top: -4px;
            left: -4px;
        }
        .cat-stat-card::after {
            bottom: -4px;
            right: -4px;
        }
        .cat-stat-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            display: block;
            line-height: 1.2;
        }
        .cat-stat-label {
            font-size: 13px;
            color: var(--color-muted);
            display: block;
            margin-top: 4px;
        }

        /* ========== 筛选工具条 ========== */
        .filter-toolbar {
            background: var(--color-card);
            border: 2px solid var(--color-border);
            border-radius: 12px;
            padding: 16px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-card);
            margin-bottom: 32px;
        }
        .filter-toolbar label {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            white-space: nowrap;
        }
        .filter-toolbar select,
        .filter-toolbar input[type="text"] {
            padding: 8px 12px;
            border: 2px solid var(--color-border);
            border-radius: 8px;
            font-size: 14px;
            background: #fff;
            color: var(--color-text);
            outline: none;
            transition: all 0.2s ease;
            min-width: 120px;
        }
        .filter-toolbar select:focus,
        .filter-toolbar input[type="text"]:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .filter-btn {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid var(--color-border);
            background: #fff;
            color: var(--color-muted);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.04);
        }
        .filter-btn.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }
        .filter-btn:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }

        /* ========== 卡片网格 ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .play-card {
            background: var(--color-card);
            border: 2px solid var(--color-border);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .play-card:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .play-card-thumb {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E8EEF6;
        }
        .play-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .play-card:hover .play-card-thumb img {
            transform: scale(1.05);
        }
        .play-card-thumb .thumb-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            border-radius: 6px;
            font-family: var(--font-mono);
            font-size: 11px;
            font-weight: 700;
            background: var(--color-primary);
            color: #fff;
            border: 2px solid #fff;
        }
        .play-card-thumb .thumb-badge.orange {
            background: var(--pixel-orange);
        }
        .play-card-thumb .thumb-badge.pink {
            background: var(--pixel-pink);
        }
        .play-card-thumb .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(30, 41, 59, 0.4);
            opacity: 0;
            transition: opacity 0.25s ease;
        }
        .play-card:hover .play-overlay {
            opacity: 1;
        }
        .play-overlay-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 50px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .play-overlay-btn:hover {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }
        .play-card-body {
            padding: 14px 16px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .play-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .play-card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 12px;
            color: var(--color-muted);
            margin-top: auto;
        }
        .play-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .play-card-meta i {
            color: var(--color-primary-light);
        }

        /* ========== 标签云 ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-link {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            border: 2px solid var(--color-border);
            background: #fff;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-muted);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .tag-link:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(37, 99, 235, 0.04);
            transform: translateY(-2px);
        }
        .tag-link .num {
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--color-primary);
            margin-left: 4px;
        }

        /* ========== 热门排行 ========== */
        .rank-list {
            list-style: none;
            counter-reset: rank;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .rank-item {
            counter-increment: rank;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
        }
        .rank-item:hover {
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .rank-num {
            font-family: var(--font-mono);
            font-size: 22px;
            font-weight: 700;
            color: var(--color-primary);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(37, 99, 235, 0.08);
            border: 2px solid rgba(37, 99, 235, 0.2);
            flex-shrink: 0;
        }
        .rank-item:nth-child(1) .rank-num {
            background: rgba(255, 140, 66, 0.15);
            border-color: var(--pixel-orange);
            color: var(--pixel-orange);
        }
        .rank-item:nth-child(2) .rank-num {
            background: rgba(34, 211, 238, 0.12);
            border-color: var(--pixel-cyan);
            color: #0891B2;
        }
        .rank-item:nth-child(3) .rank-num {
            background: rgba(236, 72, 153, 0.12);
            border-color: var(--pixel-pink);
            color: var(--pixel-pink);
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-meta {
            font-size: 12px;
            color: var(--color-muted);
            display: flex;
            gap: 10px;
            margin-top: 2px;
        }

        /* ========== 数据快照 ========== */
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .snapshot-card {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            padding: 18px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
            position: relative;
        }
        .snapshot-card:hover {
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
        }
        .snapshot-icon {
            font-size: 24px;
            color: var(--color-primary);
            margin-bottom: 8px;
            display: block;
        }
        .snapshot-value {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            display: block;
            line-height: 1.3;
        }
        .snapshot-label {
            font-size: 13px;
            color: var(--color-muted);
            display: block;
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 2px solid var(--color-border);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.2s ease;
            box-shadow: var(--shadow-card);
        }
        .faq-item.open {
            border-color: var(--color-primary);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: all 0.2s ease;
        }
        .faq-question:hover {
            background: rgba(37, 99, 235, 0.04);
        }
        .faq-question:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: -3px;
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 6px;
            border: 2px solid var(--color-border);
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--color-primary);
            font-weight: 700;
            flex-shrink: 0;
            transition: all 0.25s ease;
        }
        .faq-item.open .faq-icon {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            color: var(--color-muted);
            font-size: 14px;
            line-height: 1.8;
            background: rgba(37, 99, 235, 0.03);
            border-top: 2px solid var(--color-border);
        }

        /* ========== CTA 表单 ========== */
        .cta-section {
            background: var(--color-primary);
            border-radius: 16px;
            padding: 40px;
            color: #fff;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(37, 99, 235, 0.3);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: 20%;
            width: 150px;
            height: 150px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            position: relative;
            z-index: 1;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-form input,
        .cta-form select {
            padding: 12px 16px;
            border-radius: 8px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 14px;
            outline: none;
            transition: all 0.2s ease;
        }
        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }
        .cta-form input:focus,
        .cta-form select:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.25);
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.2);
        }
        .cta-form select {
            cursor: pointer;
        }
        .cta-form select option {
            color: var(--color-text);
            background: #fff;
        }
        .cta-btn {
            padding: 12px 24px;
            border-radius: 8px;
            background: #fff;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            border: 2px solid #fff;
            cursor: pointer;
            transition: all 0.25s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .cta-btn:hover {
            background: var(--pixel-orange);
            color: #fff;
            border-color: var(--pixel-orange);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }
        .cta-btn:focus-visible {
            outline: 3px solid var(--pixel-cyan);
            outline-offset: 2px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            color: #E2E8F0;
            padding: 60px 0 30px;
            margin-top: 64px;
            border-top: 4px solid var(--color-primary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin-top: 12px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: #94A3B8;
            transition: all 0.2s ease;
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: #64748B;
        }
        .footer-copy {
            color: #94A3B8;
        }
        .footer-disclaimer {
            max-width: 500px;
            line-height: 1.7;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .category-hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .category-hero {
                padding: 100px 0 32px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-hamburger {
                display: block;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-toolbar label {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-toolbar select,
            .filter-toolbar input[type="text"] {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .cta-section {
                padding: 24px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .category-stats {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .site-header {
                top: 8px;
                left: 8px;
                right: 8px;
            }
            .site-nav {
                padding: 8px 14px;
                border-radius: 12px;
            }
            .nav-logo-text {
                font-size: 15px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .snapshot-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section {
                padding: 20px;
                border-radius: 12px;
            }
        }