/* roulang page: index */
:root {
      --bg-canvas: #0c0e14;
      --bg-surface: #141722;
      --bg-card: #1c2030;
      --bg-card-hover: #252a3f;
      --color-primary: #ff3b5c;
      --color-primary-hover: #ff5c77;
      --color-cyan: #06b6d4;
      --medal-gold: #f59e0b;
      --medal-gold-glow: rgba(245, 158, 11, 0.25);
      --medal-silver: #94a3b8;
      --medal-bronze: #d97706;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-gold: rgba(245, 158, 11, 0.35);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.15);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }

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

    body {
      background-color: var(--bg-canvas);
      color: var(--text-secondary);
      font-family: var(--font-stack);
      line-height: 1.7;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: var(--text-primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }
    a:hover, a:focus {
      color: var(--color-primary);
    }

    h1, h2, h3, h4, h5 {
      color: var(--text-primary);
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 12px;
    }

    p {
      margin-bottom: 16px;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    .container-wide {
      max-width: 1260px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Top Utility Bar */
    .top-bar-utility {
      background: #08090d;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 12px;
      height: 38px;
      line-height: 38px;
    }
    .top-bar-utility .flex-split {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-muted);
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 6px #10b981;
    }
    .utility-links {
      display: flex;
      gap: 18px;
    }
    .utility-links a {
      color: var(--text-muted);
    }
    .utility-links a:hover {
      color: var(--color-cyan);
    }

    /* Main Navigation */
    .site-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 14, 20, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 14px 0;
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-primary);
      letter-spacing: -0.5px;
    }
    .brand-logo-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--color-primary), #ff8452);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      box-shadow: 0 2px 10px rgba(255, 59, 92, 0.35);
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      gap: 24px;
    }
    .nav-links a {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 14px;
      padding: 6px 0;
      position: relative;
    }
    .nav-links a.active, .nav-links a:hover {
      color: var(--text-primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--color-primary);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .search-input-wrap {
      position: relative;
    }
    .search-input-wrap input {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      padding: 7px 14px 7px 32px;
      font-size: 13px;
      color: var(--text-primary);
      width: 190px;
      outline: none;
      transition: all 0.3s;
    }
    .search-input-wrap input:focus {
      border-color: var(--color-cyan);
      width: 230px;
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
    }
    .search-icon {
      position: absolute;
      left: 11px;
      top: 50%;
      transform: translateY(-50%);
      width: 13px;
      height: 13px;
      stroke: var(--text-muted);
      stroke-width: 2;
      fill: none;
    }

    /* Standard Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: all 0.25s ease;
    }
    .btn-primary {
      background: var(--color-primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 59, 92, 0.35);
    }
    .btn-primary:hover {
      background: var(--color-primary-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255, 59, 92, 0.45);
      color: #fff;
    }
    .btn-gold {
      background: linear-gradient(135deg, #f59e0b, #fbbf24);
      color: #0c0e14;
      font-weight: 700;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, #fbbf24, #f59e0b);
      transform: translateY(-1px);
      color: #0c0e14;
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-subtle);
      color: var(--text-primary);
    }
    .btn-outline:hover {
      border-color: var(--text-secondary);
      background: var(--bg-card-hover);
    }

    /* Global Section Formatting */
    section {
      padding: 70px 0;
      position: relative;
    }
    .section-surface {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-head {
      margin-bottom: 40px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: var(--medal-gold);
      text-transform: uppercase;
      letter-spacing: 1px;
      background: rgba(245, 158, 11, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid rgba(245, 158, 11, 0.2);
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 780px;
      line-height: 1.7;
    }

    /* 1. Hero Section */
    .hero-wrap {
      padding: 85px 0 75px;
      background: radial-gradient(circle at 80% 20%, rgba(255, 59, 92, 0.08), transparent 60%),
                  radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.06), transparent 50%);
      border-bottom: 1px solid var(--border-subtle);
    }
    .hero-content {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-text h1 {
      font-size: 38px;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-summary {
      font-size: 16px;
      color: var(--text-secondary);
      margin-bottom: 30px;
      line-height: 1.8;
      border-left: 3px solid var(--medal-gold);
      padding-left: 18px;
      background: rgba(255, 255, 255, 0.015);
      padding-top: 8px;
      padding-bottom: 8px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 32px;
    }
    .hero-meta-points {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 24px;
      border-top: 1px solid var(--border-subtle);
    }
    .meta-point-item strong {
      display: block;
      color: var(--text-primary);
      font-size: 18px;
      font-weight: 700;
    }
    .meta-point-item span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .hero-card-showcase {
      background: var(--bg-card);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: 20px;
      box-shadow: var(--shadow-glow);
      position: relative;
    }
    .hero-medal-badge {
      position: absolute;
      top: -12px;
      left: 20px;
      background: linear-gradient(135deg, #f59e0b, #d97706);
      color: #0c0e14;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 12px;
      border-radius: 20px;
      box-shadow: 0 4px 10px rgba(245, 158, 11, 0.4);
    }
    .hero-poster-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 16px;
      position: relative;
    }
    .hero-poster-box img {
      width: 100%;
      height: 250px;
      object-fit: cover;
    }
    .hero-subtitle-render-sample {
      background: rgba(12, 14, 20, 0.85);
      border: 1px dashed var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 12px;
      text-align: center;
      font-size: 14px;
      color: #e2e8f0;
    }
    .hero-subtitle-render-sample .sub-zh {
      color: #fbbf24;
      font-weight: 600;
      font-size: 15px;
    }
    .hero-subtitle-render-sample .sub-en {
      color: var(--text-muted);
      font-size: 12px;
      margin-top: 3px;
    }

    /* 2. Feature Group */
    .grid-4-cards {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      transition: all 0.3s;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      border-color: var(--color-cyan);
      box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    }
    .feature-rank-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(6, 182, 212, 0.12);
      color: var(--color-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
      margin-bottom: 16px;
      border: 1px solid rgba(6, 182, 212, 0.25);
    }
    .feature-card h3 {
      font-size: 17px;
      margin-bottom: 10px;
    }
    .feature-card p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 0;
    }

    /* 3. Use Cases */
    .usecase-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
    .usecase-item {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.3s;
    }
    .usecase-item:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }
    .usecase-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .usecase-text {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .usecase-text h3 {
      font-size: 18px;
      margin-bottom: 10px;
    }
    .usecase-text p {
      font-size: 13px;
      color: var(--text-secondary);
      margin-bottom: 0;
    }

    /* 4. Player Console Mockup */
    .player-mockup-wrapper {
      background: #080a0f;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    .mockup-screen {
      height: 380px;
      background: #000;
      border-radius: var(--radius-md);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }
    .screen-bg-cover {
      position: absolute;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.35;
    }
    .mockup-render-text {
      position: relative;
      z-index: 2;
      text-align: center;
      padding: 0 20px;
    }
    .mockup-render-text .render-zh {
      font-size: 22px;
      font-weight: 700;
      color: #ffffff;
      text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
      margin-bottom: 6px;
    }
    .mockup-render-text .render-en {
      font-size: 14px;
      color: #cbd5e1;
      text-shadow: 0 1px 6px rgba(0, 0, 0, 0.9);
      font-family: Georgia, serif;
    }
    .mockup-controls-bar {
      margin-top: 18px;
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 20px;
      align-items: center;
      background: rgba(255, 255, 255, 0.03);
      padding: 14px 18px;
      border-radius: var(--radius-sm);
    }
    .track-indicators {
      display: flex;
      gap: 10px;
    }
    .track-tag {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      font-size: 11px;
      padding: 3px 8px;
      border-radius: 4px;
      color: var(--text-secondary);
    }
    .track-tag.active {
      border-color: var(--color-cyan);
      color: var(--color-cyan);
    }
    .timeline-scrubber {
      height: 6px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 3px;
      position: relative;
      cursor: pointer;
    }
    .timeline-fill {
      width: 64%;
      height: 100%;
      background: var(--color-primary);
      border-radius: 3px;
    }

    /* 5. Podium / Medal Cards (Top 3 Case Studies) */
    .podium-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .podium-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      border: 1px solid var(--border-subtle);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .podium-card.rank-gold {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-glow);
    }
    .podium-card.rank-silver {
      border-color: rgba(148, 163, 184, 0.35);
    }
    .podium-card.rank-bronze {
      border-color: rgba(217, 119, 6, 0.35);
    }
    .podium-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 800;
      padding: 4px 10px;
      border-radius: 4px;
      width: fit-content;
      margin-bottom: 14px;
    }
    .badge-gold { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.4); }
    .badge-silver { background: rgba(148, 163, 184, 0.15); color: #e2e8f0; border: 1px solid rgba(148, 163, 184, 0.4); }
    .badge-bronze { background: rgba(217, 119, 6, 0.15); color: #f97316; border: 1px solid rgba(217, 119, 6, 0.4); }
    .podium-card-img {
      height: 180px;
      overflow: hidden;
      border-radius: var(--radius-sm);
      margin-bottom: 16px;
    }
    .podium-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .podium-title-row {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      margin-bottom: 8px;
    }
    .podium-score {
      font-size: 20px;
      font-weight: 800;
      color: #fbbf24;
    }
    .podium-specs {
      list-style: none;
      margin: 12px 0;
      padding: 0;
      font-size: 13px;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
      padding: 12px 0;
    }
    .podium-specs li {
      display: flex;
      justify-content: space-between;
      margin-bottom: 6px;
      color: var(--text-secondary);
    }
    .podium-specs li:last-child {
      margin-bottom: 0;
    }
    .podium-fit {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-top: auto;
      padding-top: 12px;
    }

    /* 6. Pricing & Lines Comparison Table */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .price-card.featured {
      border-color: var(--color-cyan);
      background: linear-gradient(180deg, rgba(6, 182, 212, 0.05), rgba(28, 32, 48, 0.95));
      transform: scale(1.02);
    }
    .price-tag {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-primary);
      margin: 16px 0;
    }
    .price-tag span {
      font-size: 14px;
      font-weight: 400;
      color: var(--text-muted);
    }
    .price-features {
      list-style: none;
      margin: 0 0 24px;
      padding: 0;
      font-size: 13px;
      flex-grow: 1;
    }
    .price-features li {
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-secondary);
    }
    .price-features li::before {
      content: '✓';
      color: #10b981;
      font-weight: 800;
    }

    /* 7. Testimonials Wall */
    .wall-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }
    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--bg-surface);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--medal-gold);
      border: 1px solid var(--border-subtle);
    }
    .reviewer-info strong {
      display: block;
      color: var(--text-primary);
      font-size: 14px;
    }
    .reviewer-info span {
      font-size: 12px;
      color: var(--color-cyan);
    }
    .review-stars {
      color: #fbbf24;
      font-size: 13px;
      margin-bottom: 8px;
    }
    .review-card p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 0;
    }

    /* 8. Reputation & Rating Bar Chart */
    .rating-dashboard {
      display: grid;
      grid-template-columns: 1fr 1.4fr;
      gap: 30px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 32px;
    }
    .dashboard-metrics {
      display: flex;
      flex-direction: column;
      justify-content: center;
      border-right: 1px solid var(--border-subtle);
      padding-right: 30px;
    }
    .metric-big {
      font-size: 48px;
      font-weight: 800;
      color: #fbbf24;
      line-height: 1;
      margin-bottom: 8px;
    }
    .bars-container {
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 16px;
    }
    .bar-row {
      display: grid;
      grid-template-columns: 100px 1fr 50px;
      gap: 12px;
      align-items: center;
      font-size: 13px;
    }
    .bar-track {
      background: rgba(255, 255, 255, 0.05);
      height: 8px;
      border-radius: 4px;
      overflow: hidden;
    }
    .bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-cyan), var(--color-primary));
      border-radius: 4px;
    }

    /* 9. Articles List */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .article-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 14px;
      transition: all 0.25s;
    }
    .article-item:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }
    .article-item img {
      width: 100%;
      height: 90px;
      object-fit: cover;
    }
    .article-text h4 {
      font-size: 15px;
      margin-bottom: 6px;
    }
    .article-text p {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.5;
    }
    .more-articles-wrap {
      text-align: right;
      margin-top: 18px;
    }
    .more-articles-link {
      font-size: 13px;
      color: var(--color-cyan);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 10. Call to Action Banner */
    .cta-banner {
      background: linear-gradient(135deg, #181c2b, #10121a);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-lg);
      padding: 44px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-glow);
    }
    .cta-banner h2 {
      font-size: 30px;
      margin-bottom: 14px;
    }
    .cta-banner p {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 640px;
      margin: 0 auto 28px;
    }

    /* 11. Top 10 Leaderboard Table */
    .leaderboard-table-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .leaderboard-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 13px;
      text-align: left;
    }
    .leaderboard-table th {
      background: rgba(255, 255, 255, 0.02);
      padding: 14px 18px;
      color: var(--text-muted);
      font-weight: 600;
      border-bottom: 1px solid var(--border-subtle);
    }
    .leaderboard-table td {
      padding: 14px 18px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      color: var(--text-secondary);
    }
    .leaderboard-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }
    .rank-num {
      font-weight: 800;
      font-size: 14px;
      display: inline-block;
      width: 28px;
      text-align: center;
    }
    .rank-num.top1 { color: #fbbf24; }
    .rank-num.top2 { color: #cbd5e1; }
    .rank-num.top3 { color: #f97316; }

    /* 12. Category Matrix */
    .category-matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .matrix-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .matrix-card:hover {
      border-color: var(--medal-gold);
      transform: translateY(-4px);
    }
    .matrix-badge-icon {
      font-size: 24px;
      margin-bottom: 14px;
    }
    .matrix-card h3 {
      font-size: 17px;
      margin-bottom: 8px;
    }
    .matrix-card p {
      font-size: 12px;
      color: var(--text-secondary);
      flex-grow: 1;
      margin-bottom: 16px;
    }
    .matrix-link {
      font-size: 13px;
      color: var(--medal-gold);
      font-weight: 600;
    }

    /* 13. FAQ Accordion */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .faq-question {
      padding: 18px 22px;
      font-weight: 600;
      color: var(--text-primary);
      font-size: 15px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-answer {
      padding: 0 22px 18px;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.7;
    }

    /* Global Site Footer */
    .site-footer {
      background: #07080c;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 30px;
      font-size: 13px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      font-size: 15px;
      color: var(--text-primary);
      margin-bottom: 18px;
      font-weight: 700;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: var(--text-muted);
    }
    .footer-col ul li a:hover {
      color: var(--text-primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      text-align: center;
      color: var(--text-muted);
      font-size: 12px;
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .grid-4-cards, .category-matrix-grid { grid-template-columns: repeat(2, 1fr); }
      .podium-grid, .pricing-grid, .wall-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .hero-content { grid-template-columns: 1fr; }
      .usecase-grid { grid-template-columns: 1fr; }
      .rating-dashboard { grid-template-columns: 1fr; }
      .dashboard-metrics { border-right: none; border-bottom: 1px solid var(--border-subtle); padding-bottom: 20px; padding-right: 0; }
      .articles-grid { grid-template-columns: 1fr; }
      .podium-grid, .pricing-grid, .wall-grid { grid-template-columns: 1fr; }
      .grid-4-cards, .category-matrix-grid { grid-template-columns: 1fr; }
      .nav-links { display: none; }
      .search-input-wrap input { width: 140px; }
      .search-input-wrap input:focus { width: 170px; }
      .hero-text h1 { font-size: 28px; }
      .cta-banner { padding: 30px 20px; }
    }

/* roulang page: category1 */
:root {
      --bg-canvas: #0c0e14;
      --bg-surface: #141722;
      --bg-card: #1c2030;
      --bg-card-hover: #252a3f;
      --color-primary: #ff3b5c;
      --color-primary-hover: #ff5c77;
      --color-cyan: #06b6d4;
      --medal-gold: #f59e0b;
      --medal-gold-glow: rgba(245, 158, 11, 0.25);
      --medal-silver: #94a3b8;
      --medal-bronze: #d97706;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-gold: rgba(245, 158, 11, 0.35);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.15);
      --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    body {
      background-color: var(--bg-canvas);
      color: var(--text-secondary);
      font-family: var(--font-stack);
      line-height: 1.7;
      font-size: 15px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }

    a {
      color: var(--text-primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    a:hover, a:focus {
      color: var(--color-primary);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }

    .container-wide {
      max-width: 1260px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Top Utility Bar */
    .top-utility-bar {
      background: var(--bg-canvas);
      border-bottom: 1px solid var(--border-subtle);
      font-size: 12px;
      padding: 7px 0;
    }

    .utility-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 15px;
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-muted);
    }

    .status-dot {
      width: 7px;
      height: 7px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 6px #10b981;
    }

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

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

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

    /* Main Navigation */
    .site-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(12, 14, 20, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 14px 0;
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-primary);
      letter-spacing: -0.5px;
    }

    .brand-logo-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--color-primary), #ff8452);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      box-shadow: 0 2px 10px rgba(255, 59, 92, 0.35);
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      margin: 0;
      gap: 24px;
      padding: 0;
    }

    .nav-links a {
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 14px;
      padding: 6px 0;
      position: relative;
    }

    .nav-links a.active, .nav-links a:hover {
      color: var(--text-primary);
    }

    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--color-primary);
      border-radius: 2px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .search-input-wrap {
      position: relative;
    }

    .search-input-wrap input {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      padding: 7px 14px 7px 32px;
      font-size: 13px;
      color: var(--text-primary);
      width: 190px;
      outline: none;
      transition: all 0.3s;
      margin: 0;
    }

    .search-input-wrap input:focus {
      border-color: var(--color-cyan);
      width: 230px;
      box-shadow: 0 0 10px rgba(6, 182, 212, 0.2);
    }

    .search-icon {
      position: absolute;
      left: 11px;
      top: 50%;
      transform: translateY(-50%);
      width: 13px;
      height: 13px;
      stroke: var(--text-muted);
      stroke-width: 2;
      fill: none;
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      border: none;
      transition: all 0.25s ease;
      text-decoration: none;
    }

    .btn-primary {
      background: var(--color-primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 59, 92, 0.35);
    }

    .btn-primary:hover {
      background: var(--color-primary-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255, 59, 92, 0.45);
      color: #fff;
    }

    .btn-gold {
      background: linear-gradient(135deg, #f59e0b, #fbbf24);
      color: #0c0e14;
      font-weight: 700;
      box-shadow: 0 4px 14px rgba(245, 158, 11, 0.3);
    }

    .btn-gold:hover {
      background: linear-gradient(135deg, #fbbf24, #f59e0b);
      transform: translateY(-1px);
      color: #0c0e14;
    }

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

    .btn-outline:hover {
      border-color: var(--text-secondary);
      background: var(--bg-card-hover);
      color: #fff;
    }

    /* Section Foundations */
    section {
      padding: 60px 0;
      position: relative;
    }

    .section-surface {
      background-color: var(--bg-surface);
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }

    .section-head {
      margin-bottom: 35px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      color: var(--medal-gold);
      text-transform: uppercase;
      letter-spacing: 1px;
      background: rgba(245, 158, 11, 0.1);
      padding: 4px 10px;
      border-radius: 4px;
      border: 1px solid rgba(245, 158, 11, 0.2);
      margin-bottom: 10px;
    }

    .section-title {
      font-size: 26px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 10px 0;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-secondary);
      margin: 0;
      max-width: 820px;
    }

    /* Category Specific: Header & Breadcrumbs */
    .category-hero {
      padding: 40px 0 25px 0;
      border-bottom: 1px solid var(--border-subtle);
      background: linear-gradient(180deg, rgba(20, 23, 34, 0.6) 0%, rgba(12, 14, 20, 1) 100%);
    }

    .breadcrumbs-bar {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .breadcrumbs-bar a {
      color: var(--text-secondary);
    }

    .breadcrumbs-bar a:hover {
      color: var(--color-primary);
    }

    .page-title {
      font-size: 30px;
      font-weight: 800;
      color: var(--text-primary);
      margin: 0 0 12px 0;
      letter-spacing: -0.5px;
    }

    .meta-stat-strip {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
      margin-top: 15px;
      font-size: 13px;
    }

    .stat-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: var(--bg-card);
      padding: 5px 12px;
      border-radius: 20px;
      border: 1px solid var(--border-subtle);
      color: var(--text-secondary);
    }

    .stat-pill strong {
      color: var(--medal-gold);
      font-weight: 700;
    }

    /* Filter Ribbon */
    .filter-section {
      padding: 24px 0;
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border-subtle);
    }

    .filter-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .filter-row {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .filter-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      min-width: 68px;
    }

    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .filter-btn {
      font-size: 13px;
      padding: 4px 12px;
      border-radius: 4px;
      color: var(--text-secondary);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.2s;
    }

    .filter-btn:hover {
      color: var(--text-primary);
      background: rgba(255, 255, 255, 0.08);
    }

    .filter-btn.active {
      background: rgba(255, 59, 92, 0.15);
      border-color: var(--color-primary);
      color: var(--color-primary);
      font-weight: 600;
    }

    /* Grid & Cards */
    .catalog-grid {
      margin-top: 10px;
    }

    .resource-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      height: 100%;
    }

    .resource-card:hover {
      transform: translateY(-4px);
      border-color: rgba(245, 158, 11, 0.4);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    }

    .card-thumb-wrap {
      position: relative;
      width: 100%;
      height: 240px;
      overflow: hidden;
      background: #000;
    }

    .card-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
      border-radius: 0;
    }

    .resource-card:hover .card-thumb-wrap img {
      transform: scale(1.05);
    }

    .medal-corner {
      position: absolute;
      top: 10px;
      left: 10px;
      z-index: 2;
      padding: 4px 9px;
      font-size: 11px;
      font-weight: 800;
      border-radius: 4px;
      text-transform: uppercase;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    }

    .medal-gold {
      background: linear-gradient(135deg, #f59e0b, #fbbf24);
      color: #000;
    }

    .medal-silver {
      background: linear-gradient(135deg, #94a3b8, #cbd5e1);
      color: #0c0e14;
    }

    .medal-bronze {
      background: linear-gradient(135deg, #d97706, #f97316);
      color: #fff;
    }

    .medal-normal {
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid var(--border-subtle);
      color: var(--text-muted);
    }

    .format-badge {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(4px);
      color: #fff;
      font-size: 11px;
      font-weight: 600;
      padding: 2px 7px;
      border-radius: 3px;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .card-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .card-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 8px 0;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-title a {
      color: var(--text-primary);
    }

    .card-title a:hover {
      color: var(--color-primary);
    }

    .card-meta-list {
      list-style: none;
      padding: 0;
      margin: 0 0 14px 0;
      font-size: 12px;
      color: var(--text-muted);
      display: flex;
      flex-direction: column;
      gap: 5px;
    }

    .card-meta-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .card-meta-item .val {
      color: var(--text-secondary);
      font-weight: 500;
    }

    .speed-tag {
      color: #10b981;
      font-weight: 600;
    }

    .card-footer {
      margin-top: auto;
      padding-top: 12px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .score-rating {
      font-size: 13px;
      font-weight: 700;
      color: var(--medal-gold);
    }

    /* Pagination */
    .pagination-wrap {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 8px;
      margin-top: 50px;
      flex-wrap: wrap;
    }

    .page-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      border-radius: var(--radius-sm);
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      font-size: 14px;
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 0.2s;
    }

    .page-num:hover {
      background: var(--bg-card-hover);
      border-color: var(--text-muted);
      color: var(--text-primary);
    }

    .page-num.current {
      background: var(--color-primary);
      border-color: var(--color-primary);
      color: #fff;
      font-weight: 700;
    }

    .page-skip {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      margin-left: 12px;
    }

    .page-skip input {
      width: 48px;
      height: 36px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      color: #fff;
      text-align: center;
      font-size: 13px;
      margin: 0;
    }

    /* Honor Team Wall */
    .honor-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      overflow: hidden;
      height: 100%;
    }

    .honor-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .honor-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(255, 59, 92, 0.2));
      border: 2px solid var(--medal-gold);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
    }

    .honor-team-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0;
    }

    .honor-subtitle {
      font-size: 12px;
      color: var(--medal-gold);
    }

    .honor-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid var(--border-subtle);
    }

    .honor-stat-box {
      text-align: center;
      background: rgba(0, 0, 0, 0.2);
      padding: 10px;
      border-radius: var(--radius-sm);
    }

    .honor-stat-num {
      font-size: 18px;
      font-weight: 800;
      color: var(--text-primary);
    }

    .honor-stat-label {
      font-size: 11px;
      color: var(--text-muted);
    }

    /* Technical Advisory Box */
    .advisory-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-left: 4px solid var(--color-cyan);
      border-radius: var(--radius-sm);
      padding: 22px;
      height: 100%;
    }

    .advisory-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 10px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .advisory-text {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin: 0;
    }

    /* Tag Cloud */
    .tag-cloud-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 15px;
    }

    .cloud-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      font-size: 13px;
      color: var(--text-secondary);
      transition: all 0.2s;
    }

    .cloud-pill:hover {
      background: var(--bg-card-hover);
      border-color: var(--color-primary);
      color: var(--text-primary);
      transform: translateY(-2px);
    }

    /* Footer */
    .site-footer {
      background: #080a0e;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 25px 0;
      font-size: 13px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1.2fr 1.5fr;
      gap: 35px;
      margin-bottom: 40px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 18px;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 14px;
    }

    .brand-medal-mark {
      font-size: 20px;
    }

    .footer-desc {
      color: var(--text-secondary);
      line-height: 1.8;
      margin: 0;
    }

    .footer-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 16px 0;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

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

    .footer-links a {
      color: var(--text-secondary);
    }

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

    .footer-bottom {
      padding-top: 25px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      flex-direction: column;
      gap: 8px;
      text-align: center;
      color: var(--text-muted);
    }

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

    @media (max-width: 768px) {
      .nav-links, .top-utility-bar {
        display: none;
      }
      .page-title {
        font-size: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 25px;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }
      .card-thumb-wrap {
        height: 200px;
      }
    }