/* roulang page: index */
:root {
      --primary-color: #1E60F2;
      --primary-hover: #154ecc;
      --primary-light: #E0ECFB;
      --accent-cyan: #00C9DB;
      --badge-gold: #F59E0B;
      --badge-purple: #8B5CF6;
      --bg-main: #F5F8FC;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #64748B;
      --border-subtle: rgba(30, 96, 242, 0.1);
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -4px rgba(15, 23, 42, 0.06), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 18px 36px -6px rgba(30, 96, 242, 0.12), 0 6px 14px -3px rgba(15, 23, 42, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    .saas-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1040;
      padding: 12px 0;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo i {
      color: var(--primary-color);
      font-size: 1.4rem;
    }
    .nav-link-custom {
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .command-search {
      background-color: #EEF4FB;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      padding: 6px 16px;
      color: var(--text-light);
      font-size: 0.85rem;
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
    }
    .command-search kbd {
      background: #FFFFFF;
      color: var(--text-muted);
      border: 1px solid #CBD5E1;
      padding: 1px 6px;
      border-radius: 4px;
      font-size: 0.75rem;
    }
    .status-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }
    .btn-main-cta {
      background: var(--primary-color);
      color: #FFFFFF;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 30px;
      border: none;
      box-shadow: 0 4px 12px rgba(30, 96, 242, 0.25);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-main-cta:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(30, 96, 242, 0.35);
    }
    .btn-outline-custom {
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 500;
      padding: 8px 18px;
      border-radius: 30px;
      transition: var(--transition);
    }
    .btn-outline-custom:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: var(--primary-light);
    }
    .section-block {
      padding: 64px 0;
      position: relative;
    }
    .section-block.bg-alt {
      background-color: #FFFFFF;
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--primary-color);
      background-color: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 1.05rem;
      max-width: 760px;
      margin: 0 auto;
      line-height: 1.7;
    }
    .ui-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .ui-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 96, 242, 0.25);
    }
    .spec-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 10px;
    }
    .spec-badge.gold {
      background: rgba(245, 158, 11, 0.15);
      color: #B45309;
      border: 1px solid rgba(245, 158, 11, 0.3);
    }
    .spec-badge.purple {
      background: rgba(139, 92, 246, 0.15);
      color: #6D28D9;
      border: 1px solid rgba(139, 92, 246, 0.3);
    }
    .spec-badge.blue {
      background: var(--primary-light);
      color: var(--primary-color);
      border: 1px solid rgba(30, 96, 242, 0.2);
    }
    .spec-badge.cyan {
      background: rgba(0, 201, 219, 0.15);
      color: #0E7490;
      border: 1px solid rgba(0, 201, 219, 0.3);
    }
    .hud-stat-bar {
      background-color: #F1F5F9;
      border-radius: 6px;
      height: 6px;
      overflow: hidden;
      margin: 8px 0;
    }
    .hud-stat-bar .fill {
      height: 100%;
      background: linear-gradient(90deg, var(--primary-color), var(--accent-cyan));
    }
    .hud-stat-label {
      font-size: 0.78rem;
      color: var(--text-light);
      display: flex;
      justify-content: space-between;
    }
    .hero-compact {
      background: radial-gradient(circle at 10% 20%, rgba(224, 236, 251, 0.7) 0%, rgba(245, 248, 252, 0.8) 90%);
      padding: 50px 0 60px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .region-chip-bar {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 18px;
    }
    .region-chip {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 4px 14px;
      font-size: 0.82rem;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .region-chip.active {
      border-color: var(--primary-color);
      color: var(--primary-color);
      font-weight: 600;
      background: var(--primary-light);
    }
    .hud-monitor-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-md);
      position: relative;
    }
    .metric-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1.1;
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-light);
      margin-top: 4px;
    }
    .step-seq-pill {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-color);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 14px;
      border: 2px solid rgba(30, 96, 242, 0.2);
    }
    .article-cms-card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      background: #FFFFFF;
      padding: 20px;
      transition: var(--transition);
    }
    .article-cms-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }
    .article-cms-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .article-cms-summary {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
    }
    .article-cms-meta {
      font-size: 0.78rem;
      color: var(--text-light);
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px dashed #E2E8F0;
      padding-top: 10px;
    }
    .terminal-dashboard {
      background: #0B132B;
      color: #E2E8F0;
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size: 0.85rem;
    }
    .terminal-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      display: inline-block;
      margin-right: 5px;
    }
    .faq-accordion .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-accordion .accordion-button {
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      font-size: 1rem;
      box-shadow: none;
      padding: 16px 20px;
    }
    .faq-accordion .accordion-button:not(.collapsed) {
      background-color: var(--primary-light);
      color: var(--primary-color);
    }
    .faq-accordion .accordion-body {
      background: #FFFFFF;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      padding: 16px 20px;
    }
    .final-cta-banner {
      background: linear-gradient(135deg, #1E60F2 0%, #0F3EB5 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: 0 16px 40px rgba(30, 96, 242, 0.3);
    }
    .site-footer {
      background-color: #EEF4FB;
      border-top: 1px solid var(--border-color);
      color: var(--text-muted);
      padding: 50px 0 25px 0;
      font-size: 0.9rem;
    }
    .footer-col-title {
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
      font-size: 1rem;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--primary-color);
    }
    @media (max-width: 991.98px) {
      .section-title {
        font-size: 1.65rem;
      }
      .command-search {
        display: none;
      }
    }

/* roulang page: article */
:root {
      --primary-color: #1E60F2;
      --primary-hover: #154ecc;
      --primary-light: #E0ECFB;
      --accent-cyan: #00C9DB;
      --badge-gold: #F59E0B;
      --badge-purple: #8B5CF6;
      --bg-main: #F5F8FC;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #64748B;
      --border-subtle: rgba(30, 96, 242, 0.1);
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -4px rgba(15, 23, 42, 0.06), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 18px 36px -6px rgba(30, 96, 242, 0.12), 0 6px 14px -3px rgba(15, 23, 42, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.7;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    .saas-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1040;
      padding: 12px 0;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo i {
      color: var(--primary-color);
      font-size: 1.4rem;
    }
    .nav-link-custom {
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .command-search {
      background-color: #EEF4FB;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      padding: 6px 16px;
      color: var(--text-light);
      font-size: 0.85rem;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .command-search kbd {
      background: #FFFFFF;
      color: var(--text-muted);
      border: 1px solid #CBD5E1;
      padding: 1px 6px;
      border-radius: 4px;
      font-size: 0.75rem;
    }
    .status-pulse {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
    }
    .btn-main-cta {
      background: var(--primary-color);
      color: #FFFFFF;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 30px;
      border: none;
      box-shadow: 0 4px 12px rgba(30, 96, 242, 0.25);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-main-cta:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(30, 96, 242, 0.35);
    }
    .btn-outline-custom {
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 500;
      padding: 8px 18px;
      border-radius: 30px;
      transition: var(--transition);
    }
    .btn-outline-custom:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: var(--primary-light);
    }
    .spec-badge {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .spec-badge.gold {
      background: rgba(245, 158, 11, 0.15);
      color: #B45309;
      border: 1px solid rgba(245, 158, 11, 0.3);
    }
    .spec-badge.purple {
      background: rgba(139, 92, 246, 0.15);
      color: #6D28D9;
      border: 1px solid rgba(139, 92, 246, 0.3);
    }
    .spec-badge.blue {
      background: var(--primary-light);
      color: var(--primary-color);
      border: 1px solid rgba(30, 96, 242, 0.2);
    }
    .spec-badge.cyan {
      background: rgba(0, 201, 219, 0.15);
      color: #0E7490;
      border: 1px solid rgba(0, 201, 219, 0.3);
    }
    .article-hero-wrap {
      background: radial-gradient(circle at 50% 20%, rgba(224, 236, 251, 0.65) 0%, rgba(245, 248, 252, 0.95) 100%);
      padding: 40px 0 32px 0;
      border-bottom: 1px solid var(--border-subtle);
    }
    .breadcrumb-nav {
      font-size: 0.88rem;
      color: var(--text-light);
      margin-bottom: 18px;
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--primary-color);
    }
    .article-header-panel {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
      padding: 32px 36px;
      margin-bottom: 24px;
    }
    .article-title-h1 {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .article-meta-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.85rem;
      color: var(--text-light);
    }
    .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .stream-preview-card {
      background: #0F172A;
      border-radius: var(--radius-md);
      overflow: hidden;
      color: #F8FAFC;
      border: 1px solid rgba(255, 255, 255, 0.1);
      margin-bottom: 28px;
      box-shadow: var(--shadow-md);
    }
    .stream-screen-header {
      padding: 12px 18px;
      background: rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.8rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stream-screen-body {
      padding: 32px 24px;
      position: relative;
      background: radial-gradient(circle at center, #1E293B 0%, #0F172A 100%);
    }
    .countdown-box {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      padding: 10px 14px;
      text-align: center;
      min-width: 68px;
    }
    .countdown-val {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--accent-cyan);
      line-height: 1;
      display: block;
    }
    .countdown-label {
      font-size: 0.7rem;
      color: #94A3B8;
      margin-top: 4px;
    }
    .abstract-callout {
      background: #FFFFFF;
      border-left: 4px solid var(--primary-color);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      padding: 20px 24px;
      margin-bottom: 30px;
      box-shadow: var(--shadow-sm);
      border-top: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .abstract-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .article-rich-content {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
      padding: 40px;
      font-size: 1.05rem;
      color: #1E293B;
      line-height: 1.85;
      margin-bottom: 30px;
    }
    .article-rich-content h2 {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--text-main);
      margin-top: 36px;
      margin-bottom: 18px;
      padding-left: 12px;
      border-left: 4px solid var(--primary-color);
    }
    .article-rich-content h3 {
      font-size: 1.2rem;
      font-weight: 600;
      color: var(--text-main);
      margin-top: 24px;
      margin-bottom: 14px;
    }
    .article-rich-content p {
      margin-bottom: 20px;
      color: #334155;
    }
    .article-rich-content ul, .article-rich-content ol {
      margin-bottom: 24px;
      padding-left: 24px;
      color: #334155;
    }
    .article-rich-content li {
      margin-bottom: 8px;
    }
    .article-rich-content blockquote {
      background: var(--bg-main);
      border-left: 4px solid var(--accent-cyan);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      margin: 24px 0;
      font-style: normal;
      color: var(--text-muted);
    }
    .article-rich-content table {
      width: 100%;
      border-collapse: collapse;
      margin: 24px 0;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .article-rich-content table th {
      background-color: var(--primary-light);
      color: var(--primary-color);
      font-weight: 600;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      text-align: left;
    }
    .article-rich-content table td {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      color: #334155;
    }
    .hud-param-table {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
      padding: 24px;
      margin-bottom: 30px;
    }
    .hud-param-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 16px;
    }
    .hud-item {
      background: var(--bg-main);
      border-radius: var(--radius-sm);
      padding: 14px 16px;
      border: 1px solid var(--border-color);
    }
    .hud-item-label {
      font-size: 0.78rem;
      color: var(--text-light);
      display: flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 4px;
    }
    .hud-item-val {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .ui-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .ui-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 96, 242, 0.25);
    }
    .step-badge {
      width: 32px;
      height: 32px;
      background: var(--primary-light);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      flex-shrink: 0;
    }
    .tool-actions-bar {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      padding: 16px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 30px;
    }
    .tool-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      border-radius: 24px;
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      font-size: 0.88rem;
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .tool-btn:hover {
      background: var(--primary-light);
      color: var(--primary-color);
      border-color: var(--primary-color);
    }
    .sidebar-widget {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
      padding: 20px 22px;
      margin-bottom: 24px;
    }
    .widget-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      padding-bottom: 12px;
      margin-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .site-footer {
      background-color: #EEF4FB;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px 0;
      color: var(--text-muted);
      margin-top: 60px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary-color);
    }
    .footer-bottom {
      border-top: 1px solid rgba(15, 23, 42, 0.08);
      padding-top: 24px;
      margin-top: 40px;
      text-align: center;
      color: var(--text-light);
    }
    @media (max-width: 991px) {
      .article-header-panel {
        padding: 24px 20px;
      }
      .article-rich-content {
        padding: 24px 20px;
      }
      .article-title-h1 {
        font-size: 1.6rem;
      }
    }

/* roulang page: category1 */
:root {
      --primary-color: #1E60F2;
      --primary-hover: #154ecc;
      --primary-light: #E0ECFB;
      --accent-cyan: #00C9DB;
      --badge-gold: #F59E0B;
      --badge-purple: #8B5CF6;
      --bg-main: #F5F8FC;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #64748B;
      --border-subtle: rgba(30, 96, 242, 0.1);
      --border-color: #E2E8F0;
      --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.04);
      --shadow-md: 0 10px 25px -4px rgba(15, 23, 42, 0.06), 0 4px 10px -2px rgba(15, 23, 42, 0.03);
      --shadow-hover: 0 18px 36px -6px rgba(30, 96, 242, 0.12), 0 6px 14px -3px rgba(15, 23, 42, 0.05);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    .saas-header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1040;
      padding: 12px 0;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo i {
      color: var(--primary-color);
      font-size: 1.4rem;
    }
    .nav-link-custom {
      font-weight: 500;
      color: var(--text-muted);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .command-search {
      background-color: #EEF4FB;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      padding: 6px 16px;
      color: var(--text-light);
      font-size: 0.85rem;
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
    }
    .command-search kbd {
      background: #FFFFFF;
      color: var(--text-muted);
      border: 1px solid #CBD5E1;
      padding: 1px 6px;
      border-radius: 4px;
      font-size: 0.75rem;
    }
    .btn-main-cta {
      background: var(--primary-color);
      color: #FFFFFF;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 30px;
      border: none;
      box-shadow: 0 4px 12px rgba(30, 96, 242, 0.25);
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .btn-main-cta:hover {
      background: var(--primary-hover);
      color: #FFFFFF;
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(30, 96, 242, 0.35);
    }
    .status-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: #10B981;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
      animation: pulse-green 2s infinite;
    }
    @keyframes pulse-green {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
      70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
    }

    /* Category Specific Layouts */
    .category-hero-banner {
      background: linear-gradient(180deg, #FFFFFF 0%, #EEF5FC 100%);
      border-bottom: 1px solid var(--border-color);
      padding: 40px 0 32px 0;
    }
    .breadcrumb-nav {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-bottom: 14px;
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--primary-color);
    }
    .cat-title {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .cat-lead {
      color: var(--text-muted);
      font-size: 1.05rem;
      max-width: 800px;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .stat-pill-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .stat-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.85rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--shadow-sm);
    }
    .stat-pill strong {
      color: var(--primary-color);
      font-weight: 700;
    }

    /* Workbench Filters */
    .filter-workbench {
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      padding: 20px 24px;
      margin-top: -24px;
      position: relative;
      z-index: 10;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      padding: 8px 0;
    }
    .filter-row:not(:last-child) {
      border-bottom: 1px dashed #E2E8F0;
    }
    .filter-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      min-width: 76px;
    }
    .filter-tag {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      font-size: 0.82rem;
      padding: 4px 14px;
      border-radius: 20px;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-tag:hover, .filter-tag.active {
      background: var(--primary-light);
      border-color: var(--primary-color);
      color: var(--primary-color);
      font-weight: 600;
    }

    /* Cards & Catalog */
    .section-block {
      padding: 64px 0;
      position: relative;
    }
    .section-block.bg-alt {
      background-color: #FFFFFF;
    }
    .section-header {
      margin-bottom: 36px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--primary-color);
      background-color: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .section-desc {
      color: var(--text-muted);
      font-size: 0.98rem;
      max-width: 700px;
      line-height: 1.65;
    }

    .stream-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      padding: 22px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      position: relative;
    }
    .stream-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(30, 96, 242, 0.3);
    }
    .card-top-badges {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 14px;
    }
    .rarity-badge {
      font-size: 0.72rem;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .rarity-ur {
      background: rgba(245, 158, 11, 0.15);
      color: #B45309;
      border: 1px solid rgba(245, 158, 11, 0.3);
    }
    .rarity-ssr {
      background: rgba(139, 92, 246, 0.15);
      color: #6D28D9;
      border: 1px solid rgba(139, 92, 246, 0.3);
    }
    .rarity-sp {
      background: rgba(0, 201, 219, 0.15);
      color: #0E7490;
      border: 1px solid rgba(0, 201, 219, 0.3);
    }
    .stream-card-title {
      font-size: 1.12rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .stream-card-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .hud-specs {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      margin-bottom: 16px;
      font-size: 0.78rem;
    }
    .hud-spec-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 3px 0;
    }
    .hud-spec-item span:first-child {
      color: var(--text-light);
    }
    .hud-spec-item span:last-child {
      font-weight: 600;
      color: var(--text-main);
    }
    .card-footer-action {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }
    .action-btn {
      background: var(--primary-light);
      color: var(--primary-color);
      font-size: 0.85rem;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 20px;
      border: 1px solid rgba(30, 96, 242, 0.15);
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .action-btn:hover {
      background: var(--primary-color);
      color: #FFFFFF;
    }

    /* Alternating Technical Highlights */
    .highlight-card {
      background: #FFFFFF;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      margin-bottom: 30px;
    }
    .highlight-inner {
      padding: 40px;
    }
    .hud-display-box {
      background: #0F172A;
      color: #F8FAFC;
      border-radius: var(--radius-md);
      padding: 24px;
      font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
      font-size: 0.82rem;
      box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15);
      position: relative;
    }
    .hud-header-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      padding-bottom: 10px;
      margin-bottom: 14px;
    }
    .hud-dots {
      display: flex;
      gap: 6px;
    }
    .hud-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .hud-dot.red { background-color: #EF4444; }
    .hud-dot.yellow { background-color: #F59E0B; }
    .hud-dot.green { background-color: #10B981; }

    /* Comparison Table Card */
    .compare-container {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }
    .table-custom {
      width: 100%;
      margin-bottom: 0;
      border-collapse: collapse;
      font-size: 0.92rem;
    }
    .table-custom th {
      background: #F8FAFC;
      padding: 16px 20px;
      color: var(--text-main);
      font-weight: 600;
      border-bottom: 2px solid var(--border-color);
    }
    .table-custom td {
      padding: 16px 20px;
      color: var(--text-muted);
      border-bottom: 1px solid #F1F5F9;
      vertical-align: middle;
    }
    .table-custom tr:last-child td {
      border-bottom: none;
    }

    /* FAQ Custom */
    .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md) !important;
      margin-bottom: 12px;
      overflow: hidden;
      background: #FFFFFF;
    }
    .accordion-button {
      font-weight: 600;
      color: var(--text-main);
      background: #FFFFFF;
      padding: 18px 24px;
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      color: var(--primary-color);
      background-color: #F8FAFC;
    }
    .accordion-body {
      padding: 20px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
    }

    /* Category Bottom CTA */
    .category-cta-box {
      background: linear-gradient(135deg, #1E60F2 0%, #154ecc 100%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 48px;
      box-shadow: 0 16px 36px rgba(30, 96, 242, 0.25);
    }
    .category-cta-box h3 {
      font-size: 1.85rem;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .category-cta-box p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 1.05rem;
      max-width: 650px;
      margin-bottom: 28px;
    }

    /* Footer */
    .site-footer {
      background-color: #EEF4FB;
      border-top: 1px solid var(--border-subtle);
      padding: 56px 0 28px 0;
      margin-top: 40px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--primary-color);
    }
    .footer-bottom {
      border-top: 1px solid #DDE7F3;
      padding-top: 24px;
      margin-top: 36px;
      color: var(--text-light);
      text-align: center;
    }

    @media (max-width: 991px) {
      .filter-workbench {
        margin-top: 0;
      }
      .hud-display-box {
        margin-top: 24px;
      }
      .highlight-inner {
        padding: 24px;
      }
    }
    @media (max-width: 767px) {
      .cat-title {
        font-size: 1.65rem;
      }
      .section-block {
        padding: 44px 0;
      }
      .command-search span {
        display: none;
      }
      .category-cta-box {
        padding: 30px 20px;
      }
      .category-cta-box h3 {
        font-size: 1.4rem;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}