/* roulang page: index */
:root {
            --primary: #4f46e5;
            --primary-hover: #4338ca;
            --primary-light: #e0e7ff;
            --secondary: #06b6d4;
            --accent: #f43f5e;
            --bg-main: #0f172a;
            --bg-card: #1e293b;
            --bg-card-alt: #182234;
            --bg-light: #f8fafc;
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --text-dark: #0f172a;
            --border-color: #334155;
            --border-light: #e2e8f0;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .brand-logo i {
            font-size: 1.6rem;
            color: var(--secondary);
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 32px;
            align-items: center;
        }

        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 0;
            position: relative;
        }

        .main-nav a:hover, .main-nav a.active {
            color: #fff;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 9999px;
            cursor: pointer;
            border: none;
            transition: var(--transition);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #6366f1);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-main);
        }

        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(6, 182, 212, 0.05);
        }

        /* Hero 区域：斜切色块首屏 */
        .hero-section {
            position: relative;
            padding: 100px 0 140px;
            background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 60%, #082f49 100%);
            clip-path: polygon(0 0, 100% 0, 100% calc(100% - 60px), 0 100%);
            overflow: hidden;
        }

        .hero-bg-glow {
            position: absolute;
            top: -150px;
            right: -100px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.25) 0%, rgba(15, 23, 42, 0) 70%);
            z-index: 1;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(79, 70, 229, 0.2);
            border: 1px solid rgba(99, 102, 241, 0.4);
            color: var(--primary-light);
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-title {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            line-height: 1.25;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-title span {
            background: linear-gradient(135deg, #38bdf8, #818cf8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 基础 Section 布局 */
        .section-padding {
            padding: 90px 0;
            position: relative;
        }

        .section-alt {
            background-color: #0b1120;
        }

        .section-header {
            margin-bottom: 50px;
            max-width: 720px;
        }

        .section-tag {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--secondary);
            font-weight: 700;
            margin-bottom: 8px;
            display: block;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 板块 1: KPI 看板 */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }

        .kpi-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 30px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .kpi-card:hover {
            transform: translateY(-4px);
            border-color: rgba(99, 102, 241, 0.5);
        }

        .kpi-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 6px;
            font-family: Arial, sans-serif;
            background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .kpi-label {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .kpi-info {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块 2: 服务矩阵 (Grid) */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 28px;
        }

        .matrix-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .matrix-card:hover {
            border-color: var(--primary);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
            transform: translateY(-3px);
        }

        .matrix-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(79, 70, 229, 0.15);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .matrix-title {
            font-size: 1.25rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .matrix-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex-grow: 1;
        }

        /* 板块 3: 结果对比 (Table/Flex) */
        .compare-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .compare-row {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            padding: 20px 28px;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
        }

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

        .compare-head {
            background: rgba(15, 23, 42, 0.7);
            font-weight: 600;
            color: #fff;
            font-size: 1rem;
        }

        .compare-feat {
            font-weight: 500;
            color: var(--text-main);
        }

        .compare-highlight {
            color: var(--secondary);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        /* 板块 4: 里程碑 (Timeline) */
        .timeline-wrapper {
            position: relative;
            padding-left: 32px;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            top: 10px;
            bottom: 10px;
            left: 7px;
            width: 2px;
            background: var(--border-color);
        }

        .timeline-item {
            position: relative;
            margin-bottom: 36px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -32px;
            top: 4px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg-main);
        }

        .timeline-time {
            font-size: 0.85rem;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 4px;
        }

        .timeline-heading {
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }

        .timeline-body {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 5: 竖屏种草 (Cards Stream) */
        .vertical-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .v-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .v-card:hover {
            transform: translateY(-5px);
            border-color: var(--secondary);
        }

        .v-card-media {
            height: 220px;
            background: linear-gradient(45deg, #1e293b, #334155);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .v-card-media i {
            font-size: 3rem;
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }

        .v-card:hover .v-card-media i {
            color: var(--secondary);
            transform: scale(1.1);
        }

        .v-card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 23, 42, 0.8);
            color: #38bdf8;
            padding: 4px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .v-card-body {
            padding: 16px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .v-card-title {
            font-size: 0.98rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .v-card-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 12px;
        }

        /* 板块 6: 观点解读 (Editorial Cards) */
        .editorial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 28px;
        }

        .editorial-card {
            background: var(--bg-card-alt);
            border-left: 4px solid var(--primary);
            padding: 28px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }

        .editorial-quote {
            font-size: 1.05rem;
            font-weight: 500;
            color: #e2e8f0;
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .editorial-author {
            font-size: 0.85rem;
            color: var(--secondary);
            font-weight: 600;
        }

        /* 板块 7: 会员权益 (Benefits Grid) */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .benefit-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
            text-align: center;
        }

        .benefit-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 14px;
        }

        .benefit-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .benefit-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* 板块 8: 资讯动态 (News List) */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .news-item:hover {
            border-color: var(--primary);
            background: rgba(30, 41, 59, 0.8);
        }

        .news-info {
            max-width: 80%;
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }

        .news-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .news-meta {
            text-align: right;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 板块 9: 平台保障 (Trust Badges) */
        .guarantee-bar {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
            background: linear-gradient(90deg, #1e1b4b 0%, #0f172a 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px 30px;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .guarantee-item i {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-top: 2px;
        }

        .guarantee-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .guarantee-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* 板块 10: 快速解答 (FAQ) */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
            gap: 24px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: var(--radius-md);
        }

        .faq-question {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-question i {
            color: var(--primary-light);
            font-size: 0.95rem;
        }

        .faq-answer {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* 统一页脚 */
        .site-footer {
            background: #090d16;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }

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

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-top: 14px;
            max-width: 360px;
        }

        .footer-heading {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(51, 65, 85, 0.4);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 响应式断点适配 */
        @media (max-width: 1024px) {
            .compare-row {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }
            .main-nav {
                display: none;
            }
            .hero-section {
                padding: 60px 0 100px;
                clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), 0 100%);
            }
            .kpi-grid {
                margin-top: -30px;
            }
            .section-padding {
                padding: 60px 0;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .news-info {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --primary-light: #e0e7ff;
      --secondary: #06b6d4;
      --accent: #f43f5e;
      --bg-main: #0f172a;
      --bg-card: #1e293b;
      --bg-card-alt: #182234;
      --bg-light: #f8fafc;
      --text-main: #f1f5f9;
      --text-muted: #94a3b8;
      --text-dark: #0f172a;
      --border-color: #334155;
      --border-light: #e2e8f0;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    
    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 23, 42, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      letter-spacing: -0.5px;
    }
    .brand-logo i {
      font-size: 1.6rem;
      color: var(--secondary);
      background: linear-gradient(135deg, var(--secondary), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .main-nav ul {
      display: flex;
      list-style: none;
      gap: 32px;
      align-items: center;
    }
    .main-nav a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 0;
      position: relative;
    }
    .main-nav a:hover, .main-nav a.active {
      color: #fff;
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--secondary);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 9999px;
      cursor: pointer;
      border: none;
      transition: var(--transition);
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #6366f1);
      color: #fff;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--secondary);
      color: var(--secondary);
      background: rgba(6, 182, 212, 0.05);
    }

    /* Section 基础规范 */
    .section-padding {
      padding: 80px 0;
      position: relative;
    }
    .section-alt {
      background-color: #0b1120;
    }
    .section-header {
      margin-bottom: 48px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
    }

    /* 分类页 Hero：倒计时与预约发布版式 */
    .cat-hero {
      position: relative;
      padding: 70px 0 90px;
      background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
                  linear-gradient(180deg, #131d38 0%, #0f172a 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .cat-hero-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .cat-hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(6, 182, 212, 0.15);
      border: 1px solid rgba(6, 182, 212, 0.4);
      color: #38bdf8;
      padding: 6px 14px;
      border-radius: 9999px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .cat-hero h1 {
      font-size: clamp(2rem, 3.8vw, 3rem);
      line-height: 1.2;
      font-weight: 800;
      color: #fff;
      margin-bottom: 16px;
    }
    .cat-hero h1 span {
      background: linear-gradient(135deg, #38bdf8, #818cf8);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 30px;
    }
    .countdown-card {
      background: rgba(30, 41, 59, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow);
    }
    .countdown-title {
      font-size: 1.1rem;
      font-weight: 600;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
    }
    .countdown-timer-ring {
      display: flex;
      gap: 12px;
      margin-bottom: 24px;
    }
    .timer-unit {
      flex: 1;
      background: #0f172a;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px 6px;
      text-align: center;
    }
    .timer-val {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--secondary);
      line-height: 1;
      margin-bottom: 4px;
    }
    .timer-lbl {
      font-size: 0.75rem;
      color: var(--text-muted);
      text-transform: uppercase;
    }
    .feature-highlights {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 24px;
    }
    .highlight-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: #cbd5e1;
    }
    .highlight-item i {
      color: #10b981;
    }

    /* 分类标签过滤栏 */
    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 36px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .filter-btn {
      padding: 8px 18px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 9999px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-btn:hover, .filter-btn.active {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    /* 影像卡片网格 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }
    .media-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .media-card:hover {
      transform: translateY(-5px);
      border-color: var(--secondary);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    }
    .media-thumb {
      position: relative;
      height: 170px;
      background: #1e293b;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .media-thumb-bg {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.75;
      transition: var(--transition);
    }
    .media-card:hover .media-thumb-bg {
      transform: scale(1.05);
      opacity: 0.9;
    }
    .media-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      padding: 4px 8px;
      font-size: 0.75rem;
      font-weight: 700;
      border-radius: 4px;
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(4px);
      color: #38bdf8;
      border: 1px solid rgba(56, 189, 248, 0.3);
    }
    .media-duration {
      position: absolute;
      bottom: 12px;
      right: 12px;
      padding: 2px 6px;
      font-size: 0.75rem;
      font-weight: 600;
      border-radius: 4px;
      background: rgba(0, 0, 0, 0.8);
      color: #fff;
    }
    .media-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .media-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .media-meta {
      display: flex;
      justify-content: space-between;
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .media-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex: 1;
    }
    .media-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 14px;
      margin-top: auto;
    }
    .spec-badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 0.75rem;
      color: #a5b4fc;
    }

    /* 规格参数对比区块 */
    .specs-table-wrapper {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow-x: auto;
      box-shadow: var(--shadow);
    }
    .specs-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }
    .specs-table th, .specs-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .specs-table th {
      background: #131d38;
      color: #fff;
      font-weight: 700;
      white-space: nowrap;
    }
    .specs-table tr:last-child td {
      border-bottom: none;
    }
    .specs-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }

    /* 交互式声画架构展示 */
    .tech-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .tech-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }
    .tech-box:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }
    .tech-icon {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: rgba(79, 70, 229, 0.15);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 20px;
    }
    .tech-box h3 {
      font-size: 1.2rem;
      color: #fff;
      margin-bottom: 10px;
    }
    .tech-box p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 播放源与链路分布 */
    .nodes-wrapper {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .node-item {
      background: var(--bg-card-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
    }
    .node-status {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10b981;
      box-shadow: 0 0 10px #10b981;
      margin-right: 6px;
    }
    .node-item h4 {
      font-size: 1.05rem;
      color: #fff;
      margin: 10px 0 6px;
    }
    .node-item span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 常见疑问 FAQ 板块 */
    .cat-faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .cat-faq-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }
    .cat-faq-card h4 {
      font-size: 1.05rem;
      color: #fff;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .cat-faq-card h4 i {
      color: var(--secondary);
    }
    .cat-faq-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 收口 CTA 区域 */
    .cat-cta-box {
      background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cat-cta-box h2 {
      font-size: 2rem;
      color: #fff;
      margin-bottom: 16px;
    }
    .cat-cta-box p {
      max-width: 600px;
      margin: 0 auto 30px;
      color: var(--text-muted);
      font-size: 1rem;
    }

    /* 底部通用 Footer */
    .site-footer {
      background-color: #080d1a;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand p {
      color: var(--text-muted);
      font-size: 0.9rem;
      margin-top: 16px;
      line-height: 1.7;
      max-width: 320px;
    }
    .footer-heading {
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: #64748b;
      font-size: 0.85rem;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .cat-hero-grid {
        grid-template-columns: 1fr;
      }
      .tech-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nodes-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .cat-faq-grid {
        grid-template-columns: 1fr;
      }
      .tech-grid {
        grid-template-columns: 1fr;
      }
      .nodes-wrapper {
        grid-template-columns: 1fr;
      }
      .nav-actions {
        display: none;
      }
    }