/* roulang page: index */
:root {
      --brand-primary: #1E60D5;
      --brand-primary-hover: #164EAA;
      --brand-primary-light: #EBF3FF;
      --accent-cyan: #00B4D8;
      --bg-main: #F8FAFC;
      --bg-alt: #F0F5FA;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --border-highlight: rgba(30, 96, 213, 0.16);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(30, 96, 213, 0.08);
      --shadow-hover: 0 14px 30px rgba(30, 96, 213, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      letter-spacing: 0.01em;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--brand-primary);
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--brand-primary-hover);
    }

    /* 顶部固定下载转化导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--brand-primary);
      letter-spacing: -0.02em;
    }
    .brand-badge {
      font-size: 0.72rem;
      padding: 2px 8px;
      background: var(--brand-primary-light);
      color: var(--brand-primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      border: 1px solid var(--border-highlight);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--brand-primary);
      background: var(--brand-primary-light);
    }
    .nav-action .btn-nav {
      display: inline-flex;
      align-items: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--brand-primary), #2C73EB);
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 12px rgba(30, 96, 213, 0.28);
      border: none;
      cursor: pointer;
      transition: var(--transition-base);
    }
    .nav-action .btn-nav:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 96, 213, 0.38);
      color: #fff;
    }

    /* 通用组件规范 */
    .section-block {
      padding: 72px 0;
    }
    .section-block.alt-bg {
      background-color: var(--bg-alt);
    }
    .section-header {
      margin-bottom: 44px;
      text-align: center;
    }
    .section-kicker {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--brand-primary);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      background: var(--brand-primary-light);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid var(--border-highlight);
    }
    .section-title {
      font-size: 1.95rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
      line-height: 1.65;
    }

    /* 图鉴式卡片规范 */
    .compendium-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      height: 100%;
      position: relative;
      overflow: hidden;
    }
    .compendium-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-highlight);
    }
    .compendium-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--brand-primary);
      opacity: 0;
      transition: var(--transition-base);
    }
    .compendium-card:hover::before {
      opacity: 1;
    }

    .tag-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      background: var(--brand-primary-light);
      color: var(--brand-primary);
      border: 1px solid var(--border-highlight);
      margin-bottom: 12px;
    }

    /* 板块 1: Hero 首屏（自测选型短问卷视觉） */
    .hero-section {
      padding: 64px 0 80px;
      background: radial-gradient(circle at 10% 20%, rgba(235, 243, 255, 0.8) 0%, rgba(248, 250, 252, 1) 90%);
      border-bottom: 1px solid var(--border-color);
    }
    .hero-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      letter-spacing: -0.03em;
      margin-bottom: 20px;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }
    .btn-main {
      padding: 13px 28px;
      background: var(--brand-primary);
      color: #fff;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: 0 6px 18px rgba(30, 96, 213, 0.32);
      border: none;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-main:hover {
      background: var(--brand-primary-hover);
      color: #fff;
      transform: translateY(-2px);
    }
    .btn-secondary {
      padding: 13px 24px;
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .btn-secondary:hover {
      border-color: var(--brand-primary);
      color: var(--brand-primary);
    }

    /* 问卷交互卡片 */
    .quiz-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .quiz-card-header {
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }
    .quiz-tag {
      font-size: 0.72rem;
      color: #fff;
      background: var(--accent-cyan);
      padding: 2px 6px;
      border-radius: 3px;
      font-weight: 700;
      margin-right: 6px;
    }
    .quiz-options {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 24px;
    }
    .quiz-opt-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition-base);
    }
    .quiz-opt-item:hover,
    .quiz-opt-item.selected {
      border-color: var(--brand-primary);
      background: var(--brand-primary-light);
    }
    .quiz-result-preview {
      background: var(--bg-alt);
      border-radius: var(--radius-sm);
      padding: 14px 18px;
      font-size: 0.88rem;
      border: 1px dashed var(--border-highlight);
    }

    /* 板块 2: 痛点诊断 */
    .pain-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .pain-number {
      font-size: 1.5rem;
      font-weight: 800;
      color: rgba(30, 96, 213, 0.2);
      position: absolute;
      top: 16px;
      right: 20px;
    }

    /* 板块 3: 核心技术矩阵 */
    .engine-icon-box {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: var(--brand-primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-primary);
      font-weight: 700;
      margin-bottom: 16px;
    }

    /* 板块 4: 性能数据指标 */
    .metrics-container {
      background: linear-gradient(180deg, #FFFFFF 0%, var(--bg-alt) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px 24px;
      box-shadow: var(--shadow-sm);
    }
    .metric-value {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--brand-primary);
      font-family: monospace, sans-serif;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    /* 板块 5: 流程与演示 */
    .step-badge {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--brand-primary);
      color: #fff;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 14px;
    }

    /* 板块 6: CMS 资讯列表 */
    .cms-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-bottom: 16px;
      transition: var(--transition-base);
    }
    .cms-card:hover {
      border-color: var(--brand-primary);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }
    .cms-meta {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .cms-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .cms-title a {
      color: var(--text-main);
    }
    .cms-title a:hover {
      color: var(--brand-primary);
    }
    .cms-excerpt {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 板块 7: 规格对比表 */
    .table-responsive {
      overflow-x: auto;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .custom-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      font-size: 0.94rem;
    }
    .custom-table th, .custom-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .custom-table th {
      background: var(--bg-alt);
      font-weight: 700;
      color: var(--text-main);
    }

    /* 板块 8: 节点分布 */
    .node-status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      margin-right: 6px;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
    }

    /* 板块 9: 合作伙伴 */
    .partner-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      text-align: center;
      font-weight: 600;
      color: var(--text-muted);
      transition: var(--transition-base);
    }
    .partner-pill:hover {
      border-color: var(--brand-primary);
      color: var(--brand-primary);
      box-shadow: var(--shadow-sm);
    }

    /* 板块 10: 套餐对比 */
    .plan-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      text-align: center;
      position: relative;
    }
    .plan-card.featured {
      border: 2px solid var(--brand-primary);
      box-shadow: var(--shadow-md);
    }
    .plan-tag {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--brand-primary);
      color: #fff;
      font-size: 0.75rem;
      padding: 3px 12px;
      border-radius: 999px;
      font-weight: 700;
    }
    .plan-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      margin: 16px 0;
    }
    .plan-features {
      list-style: none;
      margin: 24px 0;
      padding: 0;
      text-align: left;
      font-size: 0.92rem;
    }
    .plan-features li {
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
      color: var(--text-muted);
    }

    /* 板块 11: 保障条 */
    .guarantee-box {
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      background: #FFFFFF;
      padding: 36px 0;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* 板块 12: 转化表单 */
    .cta-banner-wrapper {
      background: linear-gradient(135deg, var(--brand-primary) 0%, #164EAA 100%);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      color: #FFFFFF;
      box-shadow: var(--shadow-hover);
    }
    .cta-banner-wrapper h2 {
      color: #FFFFFF;
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-banner-wrapper p {
      color: rgba(255, 255, 255, 0.88);
      font-size: 1.05rem;
      max-width: 620px;
      margin-bottom: 28px;
    }
    .cta-form-inline {
      display: flex;
      gap: 12px;
      max-width: 540px;
    }
    .cta-form-inline input {
      height: 48px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 0 16px;
      font-size: 0.95rem;
      background: rgba(255, 255, 255, 0.15);
      color: #FFFFFF;
      margin: 0;
    }
    .cta-form-inline input::placeholder {
      color: rgba(255, 255, 255, 0.7);
    }
    .cta-form-inline .btn-submit {
      height: 48px;
      padding: 0 26px;
      background: #FFFFFF;
      color: var(--brand-primary);
      font-weight: 700;
      border: none;
      border-radius: var(--radius-sm);
      cursor: pointer;
      white-space: nowrap;
      transition: var(--transition-base);
    }
    .cta-form-inline .btn-submit:hover {
      background: var(--brand-primary-light);
      transform: translateY(-2px);
    }

    /* 页脚系统 */
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 64px 0 32px;
      font-size: 0.92rem;
      border-top: 1px solid #1E293B;
    }
    .footer-brand {
      font-size: 1.3rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      color: #64748B;
    }
    .footer-links h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
      letter-spacing: 0.04em;
    }
    .footer-links ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links ul li {
      margin-bottom: 10px;
    }
    .footer-links ul li a {
      color: #94A3B8;
    }
    .footer-links ul li a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid #1E293B;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: #64748B;
    }

    /* 响应式调整 */
    @media (max-width: 1023px) {
      .hero-h1 {
        font-size: 2rem;
      }
      .quiz-card {
        margin-top: 32px;
      }
      .cta-form-inline {
        flex-direction: column;
      }
    }
    @media (max-width: 639px) {
      .nav-links {
        display: none;
      }
      .section-block {
        padding: 48px 0;
      }
      .hero-h1 {
        font-size: 1.7rem;
      }
      .metric-value {
        font-size: 2rem;
      }
    }

/* roulang page: category1 */
:root {
      --brand-primary: #1E60D5;
      --brand-primary-hover: #164EAA;
      --brand-primary-light: #EBF3FF;
      --accent-cyan: #00B4D8;
      --bg-main: #F8FAFC;
      --bg-alt: #F0F5FA;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --border-highlight: rgba(30, 96, 213, 0.16);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(30, 96, 213, 0.08);
      --shadow-hover: 0 14px 30px rgba(30, 96, 213, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      letter-spacing: 0.01em;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      color: var(--brand-primary);
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--brand-primary-hover);
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--brand-primary);
      letter-spacing: -0.02em;
    }
    .brand-badge {
      font-size: 0.72rem;
      padding: 2px 8px;
      background: var(--brand-primary-light);
      color: var(--brand-primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      border: 1px solid var(--border-highlight);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
      padding: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--brand-primary);
      background: var(--brand-primary-light);
    }
    .nav-action .btn-nav {
      display: inline-flex;
      align-items: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--brand-primary), #2C73EB);
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 12px rgba(30, 96, 213, 0.28);
      border: none;
      cursor: pointer;
      transition: var(--transition-base);
    }
    .nav-action .btn-nav:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 96, 213, 0.38);
      color: #fff;
    }
    .section-block {
      padding: 72px 0;
    }
    .section-block.alt-bg {
      background-color: var(--bg-alt);
    }
    .section-header {
      margin-bottom: 40px;
      text-align: center;
    }
    .section-kicker {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--brand-primary);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      background: var(--brand-primary-light);
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid var(--border-highlight);
    }
    .section-title {
      font-size: 1.95rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.02em;
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
      line-height: 1.65;
    }
    .category-header-box {
      padding: 48px 0 36px;
      background: radial-gradient(circle at top right, rgba(0, 180, 216, 0.08) 0%, rgba(248, 250, 252, 1) 75%);
      border-bottom: 1px solid var(--border-color);
    }
    .breadcrumb-nav {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--brand-primary);
    }
    .breadcrumb-separator {
      margin: 0 8px;
      color: #94A3B8;
    }
    .cat-h1 {
      font-size: 2.35rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .cat-lead {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .status-meter-bar {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 14px 20px;
      box-shadow: var(--shadow-sm);
    }
    .meter-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      color: var(--text-main);
      font-weight: 600;
    }
    .meter-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #10B981;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .meter-value {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      color: var(--brand-primary);
    }
    .filter-panel {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-top: -24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .filter-group {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .filter-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-muted);
      margin-right: 6px;
    }
    .filter-tag {
      font-size: 0.82rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      background: var(--bg-main);
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition-base);
    }
    .filter-tag:hover,
    .filter-tag.active {
      background: var(--brand-primary-light);
      border-color: var(--brand-primary);
      color: var(--brand-primary);
    }
    .compendium-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      height: 100%;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }
    .compendium-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-highlight);
    }
    .compendium-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--brand-primary);
      opacity: 0;
      transition: var(--transition-base);
    }
    .compendium-card:hover::before {
      opacity: 1;
    }
    .card-top-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 12px;
    }
    .card-rarity-badge {
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(0, 180, 216, 0.12);
      color: #0284C7;
      border: 1px solid rgba(0, 180, 216, 0.24);
      letter-spacing: 0.04em;
    }
    .card-time {
      font-size: 0.78rem;
      color: #94A3B8;
    }
    .card-heading {
      font-size: 1.12rem;
      font-weight: 700;
      line-height: 1.45;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .card-heading a {
      color: var(--text-main);
    }
    .card-heading a:hover {
      color: var(--brand-primary);
    }
    .card-snippet {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
      margin-bottom: 16px;
    }
    .card-footer-action {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
    }
    .card-metric-tag {
      font-size: 0.76rem;
      font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
      color: #475569;
      background: #F1F5F9;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .card-link-arrow {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--brand-primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .card-link-arrow:hover {
      gap: 8px;
    }
    .empty-state-notice {
      text-align: center;
      padding: 48px 24px;
      background: #FFFFFF;
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      color: var(--text-muted);
      font-size: 0.95rem;
    }
    .feature-grid-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      height: 100%;
      position: relative;
    }
    .feature-index {
      font-size: 1.8rem;
      font-weight: 800;
      color: rgba(30, 96, 213, 0.14);
      line-height: 1;
      margin-bottom: 12px;
      font-family: ui-monospace, monospace;
    }
    .feature-box-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .feature-box-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }
    .spec-table-container {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .spec-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
      font-size: 0.92rem;
    }
    .spec-table th {
      background: #F8FAFC;
      color: var(--text-main);
      font-weight: 700;
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table td {
      padding: 16px 20px;
      color: var(--text-muted);
      border-bottom: 1px solid var(--border-color);
      vertical-align: middle;
    }
    .spec-table tr:last-child td {
      border-bottom: none;
    }
    .spec-table tr:hover td {
      background: rgba(235, 243, 255, 0.4);
    }
    .status-badge-ok {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.78rem;
      font-weight: 600;
      color: #059669;
      background: #ECFDF5;
      padding: 3px 8px;
      border-radius: 4px;
      border: 1px solid #A7F3D0;
    }
    .step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      height: 100%;
      position: relative;
    }
    .step-num-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--brand-primary);
      color: #fff;
      font-weight: 800;
      font-size: 0.95rem;
      margin-bottom: 16px;
    }
    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }
    .faq-accordion-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 24px;
      margin-bottom: 16px;
      box-shadow: var(--shadow-sm);
    }
    .faq-q {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: baseline;
      gap: 10px;
    }
    .faq-q-sign {
      color: var(--brand-primary);
      font-weight: 800;
    }
    .faq-a {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
      padding-left: 24px;
    }
    .cta-banner-strip {
      padding: 60px 0;
      background: linear-gradient(135deg, #1E60D5 0%, #0F3A8A 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      margin: 20px 0;
      box-shadow: var(--shadow-md);
    }
    .cta-title {
      font-size: 2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 12px;
      line-height: 1.3;
    }
    .cta-desc {
      font-size: 1.02rem;
      color: rgba(255, 255, 255, 0.88);
      max-width: 650px;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .btn-cta-solid {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 32px;
      font-size: 1rem;
      font-weight: 700;
      background: #FFFFFF;
      color: var(--brand-primary);
      border-radius: var(--radius-sm);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.16);
      transition: var(--transition-base);
    }
    .btn-cta-solid:hover {
      background: #F0F5FA;
      color: var(--brand-primary-hover);
      transform: translateY(-2px);
    }
    .btn-cta-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 26px;
      font-size: 0.95rem;
      font-weight: 600;
      border: 1px solid rgba(255, 255, 255, 0.45);
      color: #FFFFFF;
      border-radius: var(--radius-sm);
      margin-left: 12px;
      transition: var(--transition-base);
    }
    .btn-cta-outline:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    .site-footer {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      margin-top: 60px;
    }
    .footer-brand {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--brand-primary);
      margin-bottom: 14px;
    }
    .footer-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .footer-links h4 {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links ul li {
      margin-bottom: 9px;
    }
    .footer-links ul li a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .footer-links ul li a:hover {
      color: var(--brand-primary);
    }
    .footer-bottom {
      margin-top: 44px;
      padding-top: 24px;
      border-top: 1px solid var(--border-color);
      display: flex;      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #94A3B8;
      flex-wrap: wrap;
      gap: 12px;
    }
    @media print, screen and (max-width: 63.99875em) {
      .nav-links {
        display: none;
      }
      .cat-h1 {
        font-size: 1.85rem;
      }
      .cta-title {
        font-size: 1.6rem;
      }
      .btn-cta-outline {
        margin-left: 0;
        margin-top: 10px;
      }
    }
    @media print, screen and (max-width: 39.99875em) {
      .filter-panel {
        flex-direction: column;
        align-items: flex-start;
      }
      .status-meter-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
      }
    }

/* roulang page: article */
:root {
      --brand-primary: #1E60D5;
      --brand-primary-hover: #164EAA;
      --brand-primary-light: #EBF3FF;
      --accent-cyan: #00B4D8;
      --bg-main: #F8FAFC;
      --bg-alt: #F0F5FA;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --border-highlight: rgba(30, 96, 213, 0.16);
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 8px 24px rgba(30, 96, 213, 0.08);
      --shadow-hover: 0 14px 30px rgba(30, 96, 213, 0.14);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 14px;
      --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.7;
      letter-spacing: 0.01em;
      -webkit-font-smoothing: antialiased;
      margin: 0;
      padding: 0;
    }
    a {
      color: var(--brand-primary);
      text-decoration: none;
      transition: var(--transition-base);
    }
    a:hover {
      color: var(--brand-primary-hover);
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--brand-primary);
      letter-spacing: -0.02em;
    }
    .brand-badge {
      font-size: 0.72rem;
      padding: 2px 8px;
      background: var(--brand-primary-light);
      color: var(--brand-primary);
      border-radius: var(--radius-sm);
      font-weight: 600;
      border: 1px solid var(--border-highlight);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 24px;
      margin: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--brand-primary);
      background: var(--brand-primary-light);
    }
    .nav-action .btn-nav {
      display: inline-flex;
      align-items: center;
      padding: 9px 20px;
      font-size: 0.92rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--brand-primary), #2C73EB);
      border-radius: var(--radius-sm);
      box-shadow: 0 4px 12px rgba(30, 96, 213, 0.28);
      border: none;
      cursor: pointer;
      transition: var(--transition-base);
    }
    .nav-action .btn-nav:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 96, 213, 0.38);
      color: #fff;
    }
    .breadcrumb-bar {
      padding: 18px 0;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.88rem;
    }
    .breadcrumb-list {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      gap: 8px;
      color: var(--text-muted);
    }
    .breadcrumb-list li + li::before {
      content: "/";
      margin-right: 8px;
      color: #94A3B8;
    }
    .breadcrumb-list a {
      color: var(--text-muted);
    }
    .breadcrumb-list a:hover {
      color: var(--brand-primary);
    }
    .article-header-hero {
      padding: 48px 0 36px;
      background: linear-gradient(180deg, rgba(235, 243, 255, 0.6) 0%, rgba(248, 250, 252, 1) 100%);
      border-bottom: 1px solid var(--border-color);
    }
    .meta-tag-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--brand-primary);
      background: var(--brand-primary-light);
      padding: 4px 12px;
      border-radius: 999px;
      border: 1px solid var(--border-highlight);
      margin-bottom: 16px;
      text-transform: uppercase;
    }
    .article-h1 {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .article-metadata-strip {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
      font-size: 0.88rem;
      color: var(--text-muted);
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
    }
    .article-metadata-strip span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .status-dot-active {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .article-layout-section {
      padding: 56px 0 80px;
    }
    .article-reading-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 40px;
    }
    .article-body-content {
      font-size: 1.05rem;
      line-height: 1.85;
      color: #1E293B;
    }
    .article-body-content h2 {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--text-main);
      margin: 40px 0 20px;
      padding-bottom: 10px;
      border-bottom: 2px solid var(--border-highlight);
    }
    .article-body-content h3 {
      font-size: 1.25rem;
      font-weight: 600;
      color: var(--text-main);
      margin: 28px 0 16px;
    }
    .article-body-content p {
      margin-bottom: 22px;
    }
    .article-body-content ul, .article-body-content ol {
      margin-bottom: 24px;
      padding-left: 24px;
    }
    .article-body-content li {
      margin-bottom: 8px;
    }
    .article-body-content blockquote {
      margin: 28px 0;
      padding: 18px 24px;
      background: var(--brand-primary-light);
      border-left: 4px solid var(--brand-primary);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      color: var(--text-muted);
      font-size: 0.98rem;
    }
    .article-body-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 28px 0;
      font-size: 0.92rem;
    }
    .article-body-content th {
      background: var(--bg-alt);
      color: var(--text-main);
      padding: 12px 16px;
      font-weight: 700;
      border: 1px solid var(--border-color);
      text-align: left;
    }
    .article-body-content td {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      color: var(--text-muted);
    }
    .empty-state-card {
      text-align: center;
      padding: 72px 24px;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-color);
    }
    .empty-state-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .empty-state-desc {
      color: var(--text-muted);
      margin-bottom: 24px;
      font-size: 0.95rem;
    }
    .btn-return-home {
      display: inline-flex;
      align-items: center;
      padding: 10px 24px;
      background: var(--brand-primary);
      color: #FFFFFF;
      font-weight: 600;
      border-radius: var(--radius-sm);
    }
    .btn-return-home:hover {
      background: var(--brand-primary-hover);
      color: #FFFFFF;
    }
    .article-action-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      padding: 24px;
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-top: 40px;
    }
    .copyright-note {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .spec-sidebar-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .spec-sidebar-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .spec-item-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 0;
      font-size: 0.88rem;
      border-bottom: 1px dashed #F1F5F9;
    }
    .spec-item-row:last-child {
      border-bottom: none;
    }
    .spec-label {
      color: var(--text-muted);
    }
    .spec-value {
      font-weight: 600;
      color: var(--text-main);
    }
    .dispatch-cta-box {
      background: linear-gradient(135deg, #1E60D5 0%, #0F3FA8 100%);
      color: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }
    .dispatch-cta-box h4 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .dispatch-cta-box p {
      font-size: 0.85rem;
      opacity: 0.9;
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .btn-white-cta {
      display: block;
      width: 100%;
      background: #FFFFFF;
      color: var(--brand-primary);
      font-weight: 700;
      padding: 11px 0;
      border-radius: var(--radius-sm);
      text-align: center;
      transition: var(--transition-base);
    }
    .btn-white-cta:hover {
      background: #F8FAFC;
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    .compendium-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition-base);
      position: relative;
      height: 100%;
    }
    .compendium-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-highlight);
    }
    .compendium-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .compendium-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .security-guarantee-bar {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 36px 0;
    }
    .guarantee-col {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }
    .guarantee-icon {
      width: 38px;
      height: 38px;
      background: var(--brand-primary-light);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-primary);
      font-weight: 800;
      flex-shrink: 0;
    }
    .guarantee-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .guarantee-col p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
      margin: 0;
    }
    .site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 64px 0 32px;
      font-size: 0.9rem;
    }
    .footer-brand {
      font-size: 1.35rem;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.7;
      color: #64748B;
      margin-bottom: 24px;
    }
    .footer-links h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: #F8FAFC;
      margin-bottom: 18px;
    }
    .footer-links ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94A3B8;
      transition: var(--transition-base);
    }
    .footer-links a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      margin-top: 48px;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
      color: #64748B;
    }
    @media (max-width: 1023px) {
      .nav-links {
        display: none;
      }
      .article-reading-container {
        padding: 32px 20px;
      }
      .article-h1 {
        font-size: 1.85rem;
      }
    }
    @media (max-width: 639px) {
      .article-h1 {
        font-size: 1.5rem;
      }
      .article-metadata-strip {
        gap: 12px;
        font-size: 0.8rem;
      }
      .article-layout-section {
        padding: 36px 0 56px;
      }
      .guarantee-col {
        margin-bottom: 20px;
      }
    }