/* roulang page: index */
:root {
      --primary-dark: #18191C;
      --surface-dark: #2A2C31;
      --accent-amber: #E66A23;
      --accent-warm: #F59E0B;
      --accent-soft: rgba(230, 106, 35, 0.12);
      --bg-body: #F7F8FA;
      --card-white: #FFFFFF;
      --text-main: #2B2F38;
      --text-sub: #64748B;
      --border-line: rgba(24, 25, 28, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-subtle: 0 10px 30px -6px rgba(24, 25, 28, 0.06);
      --shadow-hover: 0 16px 36px -4px rgba(230, 106, 35, 0.14);
      --trans-default: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * { box-sizing: border-box; }
    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.68;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
      padding-bottom: 0;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--trans-default);
    }
    a:hover { color: var(--accent-amber); }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(24, 25, 28, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 14px 0;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      font-weight: bold;
      box-shadow: 0 4px 12px rgba(230, 106, 35, 0.35);
    }
    .brand-logo .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.2px;
    }
    .brand-logo .logo-tag {
      font-size: 11px;
      background: rgba(255, 255, 255, 0.12);
      color: #CBD5E1;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
      font-weight: 500;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .main-nav a {
      color: #E2E8F0;
      font-size: 15px;
      font-weight: 600;
      position: relative;
      padding: 6px 0;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--accent-amber);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }

    .nav-cta-btn {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF !important;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 16px rgba(230, 106, 35, 0.28);
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 106, 35, 0.38);
    }

    .sec-wrap {
      padding: 72px 0;
    }
    .sec-alt {
      background-color: #FFFFFF;
    }
    .sec-dark {
      background-color: var(--primary-dark);
      color: #FFFFFF;
    }
    .sec-header {
      margin-bottom: 48px;
      text-align: center;
    }
    .sec-badge {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--accent-amber);
      background: var(--accent-soft);
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
    }
    .sec-dark .sec-badge {
      background: rgba(230, 106, 35, 0.22);
      color: var(--accent-warm);
    }
    .sec-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
      margin-bottom: 14px;
    }
    .sec-dark .sec-title {
      color: #FFFFFF;
    }
    .sec-desc {
      font-size: 16px;
      color: var(--text-sub);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.7;
    }
    .sec-dark .sec-desc {
      color: #94A3B8;
    }

    .hero-banner {
      background: radial-gradient(circle at 80% 20%, #2A2C31 0%, #18191C 70%);
      color: #FFFFFF;
      padding: 70px 0 80px;
      position: relative;
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .hero-h1 {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 900;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-h1 span {
      background: linear-gradient(135deg, #FFB020, #E66A23);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-timer-box {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 24px;
      backdrop-filter: blur(8px);
    }
    .timer-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      color: var(--accent-warm);
      font-weight: 600;
      margin-bottom: 16px;
    }
    .countdown-grid {
      display: flex;
      gap: 12px;
      margin-bottom: 24px;
    }
    .count-unit {
      flex: 1;
      background: rgba(0, 0, 0, 0.35);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-sm);
      padding: 12px 6px;
      text-align: center;
    }
    .count-num {
      font-size: 26px;
      font-weight: 800;
      color: #FFF;
      display: block;
      font-variant-numeric: tabular-nums;
    }
    .count-txt {
      font-size: 11px;
      color: #94A3B8;
      text-transform: uppercase;
    }
    .hero-cta-group {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .btn-hero-pri {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 30px;
      box-shadow: 0 4px 18px rgba(230, 106, 35, 0.35);
    }
    .btn-hero-pri:hover {
      color: #FFF;
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(230, 106, 35, 0.45);
    }
    .btn-hero-sec {
      background: rgba(255, 255, 255, 0.08);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.2);
      font-size: 15px;
      font-weight: 600;
      padding: 12px 24px;
      border-radius: 30px;
    }
    .btn-hero-sec:hover {
      background: rgba(255, 255, 255, 0.16);
      color: #FFF;
    }

    .matrix-card {
      background: var(--card-white);
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-line);
      box-shadow: var(--shadow-subtle);
      transition: var(--trans-default);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(230, 106, 35, 0.25);
    }
    .matrix-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: var(--accent-soft);
      color: var(--accent-amber);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .matrix-card h3 {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .matrix-card p {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .matrix-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid rgba(0,0,0,0.06);
      padding-top: 14px;
      font-size: 13px;
      color: #64748B;
    }
    .matrix-entry-link {
      font-weight: 700;
      color: var(--accent-amber);
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    .diff-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-line);
      box-shadow: var(--shadow-subtle);
      overflow: hidden;
    }
    .diff-table {
      width: 100%;
      margin: 0;
      border-collapse: collapse;
    }
    .diff-table th {
      padding: 18px 24px;
      font-size: 16px;
      background: #F8FAFC;
      border-bottom: 1px solid var(--border-line);
      text-align: left;
    }
    .diff-table th.highlight-col {
      background: #FFF7ED;
      color: var(--accent-amber);
      border-left: 1px solid rgba(230, 106, 35, 0.15);
      border-right: 1px solid rgba(230, 106, 35, 0.15);
    }
    .diff-table td {
      padding: 16px 24px;
      font-size: 14px;
      border-bottom: 1px solid rgba(0,0,0,0.04);
      color: var(--text-main);
    }
    .diff-table td.highlight-col {
      background: rgba(254, 243, 199, 0.25);
      font-weight: 600;
      color: var(--primary-dark);
      border-left: 1px solid rgba(230, 106, 35, 0.15);
      border-right: 1px solid rgba(230, 106, 35, 0.15);
    }

    .timeline-stream {
      position: relative;
      padding-left: 28px;
    }
    .timeline-stream::before {
      content: '';
      position: absolute;
      left: 11px;
      top: 10px;
      bottom: 10px;
      width: 2px;
      background: #E2E8F0;
    }
    .timeline-node {
      position: relative;
      margin-bottom: 32px;
    }
    .timeline-node::before {
      content: '';
      position: absolute;
      left: -28px;
      top: 6px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--accent-amber);
      box-shadow: 0 0 0 4px #FFEDD5;
    }
    .timeline-time {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent-amber);
      margin-bottom: 4px;
    }
    .timeline-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary-dark);
    }
    .timeline-content {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .article-item-card {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 20px;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-subtle);
      transition: var(--trans-default);
    }
    .article-item-card:hover {
      border-color: rgba(230, 106, 35, 0.3);
      transform: translateX(4px);
    }
    .article-tag {
      font-size: 12px;
      color: var(--accent-amber);
      background: var(--accent-soft);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
      font-weight: 600;
      align-self: flex-start;
    }
    .article-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--primary-dark);
    }
    .article-desc {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .article-meta-bar {
      display: flex;
      align-items: center;
      gap: 18px;
      font-size: 12px;
      color: #94A3B8;
    }

    .top-rank-card {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-subtle);
    }
    .top-rank-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    .top-rank-item:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .rank-num {
      width: 26px;
      height: 26px;
      border-radius: 6px;
      background: #F1F5F9;
      color: #64748B;
      font-size: 13px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .top-rank-item:nth-child(1) .rank-num {
      background: var(--accent-amber);
      color: #FFF;
    }
    .top-rank-item:nth-child(2) .rank-num {
      background: var(--accent-warm);
      color: #FFF;
    }
    .rank-text {
      font-size: 14px;
      font-weight: 600;
      line-height: 1.4;
      color: var(--primary-dark);
    }

    .assurance-box {
      background: var(--surface-dark);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      height: 100%;
    }
    .assurance-box .icon {
      font-size: 32px;
      color: var(--accent-warm);
      margin-bottom: 18px;
    }
    .assurance-box h4 {
      font-size: 18px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 10px;
    }
    .assurance-box p {
      font-size: 14px;
      color: #94A3B8;
      line-height: 1.6;
      margin: 0;
    }

    .scene-row {
      display: flex;
      align-items: center;
      gap: 40px;
      margin-bottom: 50px;
    }
    .scene-row:last-child {
      margin-bottom: 0;
    }
    .scene-row.reverse {
      flex-direction: row-reverse;
    }
    .scene-panel {
      flex: 1;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-line);
      padding: 32px;
      box-shadow: var(--shadow-subtle);
    }
    .scene-vis {
      flex: 1;
      background: linear-gradient(135deg, #2A2C31, #18191C);
      border-radius: var(--radius-md);
      padding: 36px;
      color: #FFF;
      position: relative;
      border: 1px solid rgba(255,255,255,0.08);
    }

    .step-pill-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .step-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      box-shadow: var(--shadow-subtle);
      position: relative;
    }
    .step-badge {
      font-size: 12px;
      font-weight: 800;
      color: var(--accent-amber);
      background: var(--accent-soft);
      padding: 2px 10px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .step-pill h4 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .step-pill p {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin: 0;
    }

    .accordion-custom {
      background: transparent;
      border: none;
    }
    .accordion-custom-item {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-subtle);
    }
    .accordion-custom-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      padding: 20px 24px;
      background: #FFFFFF;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .accordion-custom-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.7;
    }

    .testimonial-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-line);
      padding: 26px;
      box-shadow: var(--shadow-subtle);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .testi-stars {
      color: #F59E0B;
      margin-bottom: 12px;
      font-size: 13px;
    }
    .testi-text {
      font-size: 14px;
      color: var(--text-main);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(0,0,0,0.05);
      padding-top: 14px;
    }    .user-avatar-tag {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary-dark);
      font-size: 13px;
    }
    .user-info-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-dark);
    }
    .user-info-role {
      font-size: 12px;
      color: var(--text-sub);
    }

    .tags-cloud-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .topic-tag-chip {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      padding: 8px 16px;
      border-radius: 24px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: 0 2px 6px rgba(0,0,0,0.03);
      transition: var(--trans-default);
    }
    .topic-tag-chip:hover {
      background: var(--accent-amber);
      color: #FFFFFF;
      border-color: var(--accent-amber);
      transform: translateY(-2px);
    }

    .convert-card-box {
      background: linear-gradient(135deg, #18191C 0%, #2A2C31 100%);
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      color: #FFFFFF;
      position: relative;
      box-shadow: 0 20px 40px -10px rgba(24, 25, 28, 0.4);
    }
    .convert-input-group {
      display: flex;
      gap: 12px;
      max-width: 600px;
      margin: 24px auto 14px;
    }
    .convert-input {
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 30px;
      padding: 14px 22px;
      color: #FFFFFF;
      font-size: 15px;
      flex-grow: 1;
      outline: none;
    }
    .convert-input:focus {
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--accent-warm);
    }
    .convert-submit-btn {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      border: none;
      border-radius: 30px;
      padding: 14px 28px;
      color: #FFFFFF;
      font-weight: 700;
      font-size: 15px;
      cursor: pointer;
      box-shadow: 0 4px 16px rgba(230, 106, 35, 0.35);
      white-space: nowrap;
    }

    .site-footer {
      background: #111214;
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col li {
      margin-bottom: 10px;
    }
    .footer-col a {
      color: #94A3B8;
    }
    .footer-col a:hover {
      color: var(--accent-warm);
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: 40px;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748B;
    }

    .mobile-tab-bar {
      display: none;
    }

    @media screen and (max-width: 639px) {
      body {
        padding-bottom: 72px;
      }
      .main-nav, .nav-cta-btn {
        display: none;
      }
      .mobile-tab-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 64px;
        background: rgba(24, 25, 28, 0.96);
        backdrop-filter: blur(12px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        justify-content: space-around;
        align-items: center;
        z-index: 999;
        padding: 0 6px;
      }
      .mobile-tab-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: #94A3B8;
        font-size: 11px;
        font-weight: 500;
        gap: 3px;
        flex: 1;
      }
      .mobile-tab-item.active,
      .mobile-tab-item:hover {
        color: var(--accent-amber);
      }
      .mobile-tab-item i {
        font-size: 17px;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .step-pill-grid {
        grid-template-columns: 1fr;
      }
      .convert-input-group {
        flex-direction: column;
      }
      .scene-row, .scene-row.reverse {
        flex-direction: column;
      }
    }

/* roulang page: category2 */
:root {
      --primary-dark: #18191C;
      --surface-dark: #2A2C31;
      --accent-amber: #E66A23;
      --accent-warm: #F59E0B;
      --accent-soft: rgba(230, 106, 35, 0.12);
      --bg-body: #F7F8FA;
      --card-white: #FFFFFF;
      --text-main: #2B2F38;
      --text-sub: #64748B;
      --border-line: rgba(24, 25, 28, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-subtle: 0 10px 30px -6px rgba(24, 25, 28, 0.06);
      --shadow-hover: 0 16px 36px -4px rgba(230, 106, 35, 0.14);
      --trans-default: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.68;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    @media (max-width: 639px) {
      body {
        padding-bottom: 74px;
      }
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--trans-default);
    }
    a:hover {
      color: var(--accent-amber);
    }

    /* Site Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(24, 25, 28, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 14px 0;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      font-weight: bold;
      box-shadow: 0 4px 12px rgba(230, 106, 35, 0.35);
    }
    .brand-logo .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.2px;
    }
    .brand-logo .logo-tag {
      font-size: 11px;
      background: rgba(255, 255, 255, 0.12);
      color: #CBD5E1;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
      font-weight: 500;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .main-nav a {
      color: #E2E8F0;
      font-size: 15px;
      font-weight: 600;
      position: relative;
      padding: 6px 0;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--accent-amber);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF !important;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 16px rgba(230, 106, 35, 0.28);
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 106, 35, 0.38);
    }

    /* Section 1: Category Header */
    .cat-hero-wrap {
      background: linear-gradient(180deg, #18191C 0%, #22242A 100%);
      color: #FFFFFF;
      padding: 48px 0 56px;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #94A3B8;
      margin-bottom: 20px;
    }
    .breadcrumb-nav a {
      color: #CBD5E1;
    }
    .breadcrumb-nav a:hover {
      color: var(--accent-warm);
    }
    .breadcrumb-separator {
      color: #64748B;
      font-size: 11px;
    }
    .cat-title-h1 {
      font-size: 34px;
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.3;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .cat-title-h1 span {
      background: linear-gradient(135deg, #FFB020, #E66A23);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-desc {
      font-size: 16px;
      color: #CBD5E1;
      max-width: 820px;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .filter-pills {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .pill-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.08);
      color: #E2E8F0;
      border: 1px solid rgba(255, 255, 255, 0.12);
      transition: var(--trans-default);
      cursor: pointer;
    }
    .pill-item:hover, .pill-item.active {
      background: var(--accent-amber);
      border-color: var(--accent-amber);
      color: #FFFFFF;
    }

    /* Section 2: Filter & Sorting Bar */
    .filter-bar-section {
      padding: 24px 0;
      border-bottom: 1px solid var(--border-line);
      background: #FFFFFF;
    }
    .filter-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .sort-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .sort-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-sub);
    }
    .sort-btn {
      border: none;
      background: var(--bg-body);
      padding: 6px 14px;
      border-radius: 6px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      transition: var(--trans-default);
    }
    .sort-btn:hover, .sort-btn.active {
      background: var(--primary-dark);
      color: #FFFFFF;
    }
    .view-toggles {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .view-btn {
      width: 34px;
      height: 34px;
      border-radius: 6px;
      border: 1px solid var(--border-line);
      background: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-sub);
      cursor: pointer;
    }
    .view-btn.active {
      background: var(--accent-soft);
      border-color: var(--accent-amber);
      color: var(--accent-amber);
    }
    .record-count {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* Section 3: Core Category List */
    .cat-main-content {
      padding: 56px 0 70px;
    }
    .scheme-card {
      background: var(--card-white);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-subtle);
      transition: var(--trans-default);
      height: 100%;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .scheme-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(230, 106, 35, 0.3);
    }
    .card-top-status {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 16px;
    }
    .scheme-tag {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent-amber);
      background: var(--accent-soft);
      padding: 3px 10px;
      border-radius: 4px;
    }
    .metric-badge {
      font-size: 12px;
      font-weight: 600;
      color: #10B981;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .scheme-title {
      font-size: 18px;
      font-weight: 800;
      line-height: 1.45;
      margin-bottom: 12px;
      color: var(--primary-dark);
    }
    .scheme-summary {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .metric-data-grid {
      background: var(--bg-body);
      border-radius: var(--radius-sm);
      padding: 12px 14px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-bottom: 18px;
    }
    .metric-item-col span {
      display: block;
      font-size: 11px;
      color: var(--text-sub);
    }
    .metric-item-col strong {
      font-size: 15px;
      color: var(--primary-dark);
      font-weight: 800;
    }
    .card-footer-meta {
      border-top: 1px solid var(--border-line);
      padding-top: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-sub);
    }
    .card-btn-link {
      color: var(--accent-amber);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .card-btn-link:hover {
      gap: 8px;
    }

    /* Section 4: Editor's Pick */
    .editors-pick-sec {
      background: #FFFFFF;
      border-top: 1px solid var(--border-line);
      border-bottom: 1px solid var(--border-line);
      padding: 60px 0;
    }
    .pick-card {
      background: #FAFAFC;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      transition: var(--trans-default);
      display: flex;
      gap: 16px;
    }
    .pick-card:hover {
      background: #FFFFFF;
      box-shadow: var(--shadow-subtle);
      border-color: rgba(230, 106, 35, 0.3);
    }
    .pick-index {
      width: 36px;
      height: 36px;
      background: linear-gradient(135deg, var(--surface-dark), var(--primary-dark));
      color: var(--accent-warm);
      font-weight: 900;
      font-size: 16px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .pick-body {
      flex-grow: 1;
    }
    .pick-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .pick-desc {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 12px;
    }
    .pick-stat-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 11px;
      font-weight: 600;
      color: #0284C7;
      background: #E0F2FE;
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* Section 5: Category Context */
    .context-sec {
      padding: 70px 0;
      background: var(--bg-body);
    }
    .context-box-left {
      background: var(--primary-dark);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 40px;
      height: 100%;
    }
    .context-box-right {
      background: #FFFFFF;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-lg);
      padding: 40px;
      height: 100%;
      box-shadow: var(--shadow-subtle);
    }
    .step-list-item {
      display: flex;
      gap: 16px;
      margin-bottom: 24px;
    }
    .step-list-item:last-child {
      margin-bottom: 0;
    }
    .step-dot {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: var(--accent-soft);
      color: var(--accent-amber);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 14px;
    }

    /* Section 6: Category FAQ */
    .faq-sec {
      padding: 60px 0 70px;
      background: #FFFFFF;
      border-top: 1px solid var(--border-line);
    }
    .faq-card {
      background: #F9FAFB;
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      margin-bottom: 16px;
      transition: var(--trans-default);
    }
    .faq-card:hover {
      background: #FFFFFF;
      box-shadow: var(--shadow-subtle);
      border-color: rgba(230, 106, 35, 0.25);
    }
    .faq-q {
      font-size: 17px;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-q i {
      color: var(--accent-amber);
    }
    .faq-a {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.75;
      margin: 0;
    }

    /* Section 7: Newsletter CTA */
    .newsletter-sec {
      padding: 60px 0 80px;
      background: var(--bg-body);
    }
    .newsletter-card {
      background: radial-gradient(circle at 10% 20%, #2A2C31 0%, #18191C 90%);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      text-align: center;
      box-shadow: 0 20px 40px -10px rgba(24, 25, 28, 0.3);
    }
    .subscribe-form-wrap {
      max-width: 540px;
      margin: 28px auto 14px;
      display: flex;
      gap: 10px;
    }
    .sub-input {
      border: 1px solid rgba(255, 255, 255, 0.15) !important;
      background: rgba(255, 255, 255, 0.08) !important;
      color: #FFFFFF !important;
      border-radius: 30px !important;
      padding: 12px 20px !important;
      font-size: 14px !important;
      height: auto !important;
      margin: 0 !important;}
    .sub-input::placeholder {
      color: #94A3B8;
    }
    .sub-input:focus {
      border-color: var(--accent-amber) !important;
      background: rgba(255, 255, 255, 0.14) !important;
      box-shadow: 0 0 0 2px rgba(230, 106, 35, 0.3) !important;
    }
    .sub-btn {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF;
      border: none;
      border-radius: 30px;
      padding: 0 28px;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      white-space: nowrap;
      transition: var(--trans-default);
      box-shadow: 0 4px 16px rgba(230, 106, 35, 0.35);
    }
    .sub-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 106, 35, 0.45);
    }

    /* Site Footer */
    .site-footer {
      background: #18191C;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
      letter-spacing: -0.2px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a {
      color: #94A3B8;
    }
    .footer-col ul li a:hover {
      color: var(--accent-warm);
    }
    .footer-bottom-bar {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
      font-size: 13px;
    }

    /* Mobile Bottom Tab Bar */
    .mobile-tab-bar {
      display: none;
    }
    @media (max-width: 639px) {
      .main-nav, .nav-cta-btn {
        display: none !important;
      }
      .mobile-tab-bar {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 64px;
        background: rgba(24, 25, 28, 0.98);
        backdrop-filter: blur(14px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        z-index: 999;
        justify-content: space-around;
        align-items: center;
        padding: 0 4px;
      }
      .tab-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: #94A3B8;
        font-size: 11px;
        text-decoration: none;
        flex: 1;
        gap: 4px;
      }
      .tab-item i {
        font-size: 18px;
      }
      .tab-item.active, .tab-item:hover {
        color: var(--accent-amber);
      }
      .subscribe-form-wrap {
        flex-direction: column;
      }
      .sub-btn {
        padding: 12px 20px;
      }
    }

/* roulang page: category1 */
:root {
      --primary-dark: #18191C;
      --surface-dark: #2A2C31;
      --accent-amber: #E66A23;
      --accent-warm: #F59E0B;
      --accent-soft: rgba(230, 106, 35, 0.12);
      --bg-body: #F7F8FA;
      --card-white: #FFFFFF;
      --text-main: #2B2F38;
      --text-sub: #64748B;
      --border-line: rgba(24, 25, 28, 0.08);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-subtle: 0 10px 30px -6px rgba(24, 25, 28, 0.06);
      --shadow-hover: 0 16px 36px -4px rgba(230, 106, 35, 0.14);
      --trans-default: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      background-color: var(--bg-body);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.68;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--trans-default);
    }
    a:hover { color: var(--accent-amber); }

    /* Site Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(24, 25, 28, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 14px 0;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-logo .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 20px;
      font-weight: bold;
      box-shadow: 0 4px 12px rgba(230, 106, 35, 0.35);
    }
    .brand-logo .logo-text {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      letter-spacing: -0.2px;
    }
    .brand-logo .logo-tag {
      font-size: 11px;
      background: rgba(255, 255, 255, 0.12);
      color: #CBD5E1;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
      font-weight: 500;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .main-nav a {
      color: #E2E8F0;
      font-size: 15px;
      font-weight: 600;
      position: relative;
      padding: 6px 0;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--accent-amber);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-amber);
      border-radius: 2px;
    }
    .nav-cta-btn {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF !important;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      box-shadow: 0 4px 16px rgba(230, 106, 35, 0.28);
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 106, 35, 0.38);
    }

    /* Category Section 1: Header & Breadcrumb */
    .cat-hero-wrap {
      background: linear-gradient(180deg, #18191C 0%, #202227 100%);
      padding: 44px 0 40px;
      color: #FFFFFF;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: #94A3B8;
      margin-bottom: 16px;
    }
    .breadcrumb-nav a { color: #CBD5E1; }
    .breadcrumb-nav a:hover { color: var(--accent-warm); }
    .breadcrumb-nav .sep { font-size: 10px; opacity: 0.6; }
    .cat-title-h1 {
      font-size: 32px;
      font-weight: 800;
      color: #FFFFFF;
      margin: 0 0 12px;
      line-height: 1.3;
    }
    .cat-title-h1 span {
      background: linear-gradient(135deg, #FFB020, #E66A23);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-desc {
      font-size: 15px;
      color: #94A3B8;
      max-width: 820px;
      margin-bottom: 24px;
      line-height: 1.7;
    }
    .pill-filters {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .pill-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: #E2E8F0;
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      transition: var(--trans-default);
    }
    .pill-tag:hover, .pill-tag.active {
      background: var(--accent-soft);
      border-color: var(--accent-amber);
      color: var(--accent-warm);
    }

    /* Category Section 2: Sorting & Filter Bar */
    .filter-bar-wrap {
      background: var(--card-white);
      border-bottom: 1px solid var(--border-line);
      padding: 16px 0;
      margin-bottom: 36px;
    }
    .filter-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .sort-group {
      display: flex;
      align-items: center;
      gap: 20px;
    }
    .sort-label {
      font-size: 13px;
      color: var(--text-sub);
      font-weight: 600;
    }
    .sort-item {
      font-size: 14px;
      color: var(--text-main);
      font-weight: 500;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .sort-item.active {
      color: var(--accent-amber);
      font-weight: 700;
    }
    .view-switch {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .view-btn {
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      background: #F1F5F9;
      color: #64748B;
      font-size: 14px;
      cursor: pointer;
      transition: var(--trans-default);
    }
    .view-btn.active {
      background: var(--primary-dark);
      color: #FFFFFF;
    }

    /* Category Section 3: Content Cards Grid */
    .cat-content-grid {
      margin-bottom: 60px;
    }
    .article-card {
      background: var(--card-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-line);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      box-shadow: var(--shadow-subtle);
      transition: var(--trans-default);
    }
    .article-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(230, 106, 35, 0.3);
    }
    .card-visual {
      height: 180px;
      background: linear-gradient(135deg, #2A2C31 0%, #18191C 100%);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.15);
      font-size: 54px;
      padding: 16px;
    }
    .card-visual .card-topic-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(24, 25, 28, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: var(--accent-warm);
      font-size: 11px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 12px;
      backdrop-filter: blur(4px);
    }
    .card-visual .status-indicator {
      position: absolute;
      bottom: 14px;
      right: 14px;
      font-size: 12px;
      color: #CBD5E1;
      background: rgba(0, 0, 0, 0.45);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .card-body {
      padding: 22px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .card-body-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary-dark);
      margin: 0 0 10px;
      line-height: 1.45;
    }
    .card-body-title a:hover { color: var(--accent-amber); }
    .card-excerpt {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .card-meta-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      padding-top: 14px;
      font-size: 12px;
      color: #94A3B8;
    }
    .author-info {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--text-main);
      font-weight: 600;
    }
    .author-avatar {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #E2E8F0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      color: #475569;
    }

    /* Category Section 4: Editor's Pick */
    .editors-pick-sec {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-line);
      padding: 36px 30px;
      margin-bottom: 60px;
      box-shadow: var(--shadow-subtle);
    }
    .ep-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--border-line);
    }
    .ep-header h3 {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .ep-badge {
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFF;
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 10px;
      font-weight: 700;
    }
    .ep-item {
      display: flex;
      align-items: flex-start;
      gap: 18px;
      padding: 16px 0;
      border-bottom: 1px dashed var(--border-line);
    }
    .ep-item:last-child { border-bottom: none; }
    .ep-rank {
      font-size: 24px;
      font-weight: 900;
      color: #CBD5E1;
      width: 32px;
      line-height: 1;
      padding-top: 4px;
    }
    .ep-rank.top { color: var(--accent-amber); }
    .ep-content h4 {
      font-size: 16px;
      font-weight: 700;
      margin: 0 0 6px;
      line-height: 1.4;
    }
    .ep-content p {
      font-size: 13px;
      color: var(--text-sub);
      margin: 0 0 6px;
      line-height: 1.6;
    }
    .ep-stat {
      font-size: 12px;
      color: #94A3B8;
      display: flex;
      gap: 16px;
    }

    /* Category Section 5: Context & Guidance */
    .context-guide-sec {
      background: linear-gradient(145deg, #202227, #18191C);
      color: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 44px 36px;
      margin-bottom: 60px;
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .guide-title {
      font-size: 26px;
      font-weight: 800;
      margin-bottom: 16px;
      color: #FFFFFF;
    }
    .guide-lead {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 28px;
    }
    .guide-features {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .guide-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
    }
    .guide-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: rgba(230, 106, 35, 0.2);
      color: var(--accent-warm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }
    .guide-item-text h5 {
      font-size: 16px;
      font-weight: 700;
      color: #FFFFFF;
      margin: 0 0 4px;
    }
    .guide-item-text p {
      font-size: 13px;
      color: #94A3B8;
      margin: 0;
      line-height: 1.6;
    }

    /* Category Section 6: Category FAQ */
    .cat-faq-sec {
      margin-bottom: 60px;
    }
    .sec-subhead {
      text-align: center;
      margin-bottom: 36px;
    }
    .sec-subhead h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary-dark);
      margin: 0 0 8px;
    }
    .sec-subhead p {
      font-size: 14px;
      color: var(--text-sub);
    }
    .faq-card-item {
      background: var(--card-white);
      border: 1px solid var(--border-line);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 16px;
      box-shadow: var(--shadow-subtle);
    }
    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 10px;
    }
    .faq-q i {
      color: var(--accent-amber);
      font-size: 18px;
    }
    .faq-a {
      font-size: 13.5px;
      color: var(--text-sub);
      line-height: 1.75;
      padding-left: 30px;
      margin: 0;
    }

    /* Category Section 7: Newsletter CTA */
    .cat-cta-sec {
      background: linear-gradient(135deg, #18191C, #2A2C31);
      border-radius: var(--radius-lg);
      padding: 48px 30px;
      text-align: center;
      color: #FFFFFF;
      margin-bottom: 60px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: var(--shadow-subtle);
    }
    .cat-cta-sec h3 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #FFFFFF;
    }
    .cat-cta-sec p {
      font-size: 14.5px;
      color: #CBD5E1;
      max-width: 580px;
      margin: 0 auto 28px;
      line-height: 1.7;
    }
    .subscribe-form {
      display: flex;
      max-width: 480px;
      margin: 0 auto;
      gap: 10px;
    }
    .subscribe-input {
      flex: 1;
      height: 46px;
      border-radius: 24px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #FFFFFF;
      padding: 0 18px;
      font-size: 14px;
      outline: none;
      box-sizing: border-box;
    }
    .subscribe-input::placeholder { color: #94A3B8; }
    .subscribe-input:focus {
      background: rgba(255, 255, 255, 0.14);
      border-color: var(--accent-warm);
    }
    .subscribe-btn {
      height: 46px;
      padding: 0 24px;
      border-radius:24px;
      background: linear-gradient(135deg, var(--accent-amber), var(--accent-warm));
      color: #FFFFFF;
      font-weight: 700;
      font-size: 14px;
      border: none;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      white-space: nowrap;
      transition: var(--trans-default);
    }
    .subscribe-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(230, 106, 35, 0.4);
    }

    /* Site Footer */
    .site-footer {
      background: #121316;
      color: #94A3B8;
      padding: 60px 0 28px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul a {
      color: #94A3B8;
      font-size: 13px;
    }
    .footer-col ul a:hover {
      color: var(--accent-warm);
    }
    .footer-bottom-bar {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
    }

    /* Mobile Bottom Tab Nav */
    .mobile-tab-bar {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: rgba(24, 25, 28, 0.98);
      backdrop-filter: blur(12px);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      z-index: 999;
      justify-content: space-around;
      align-items: center;
      padding: 0 6px;
    }
    .tab-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 3px;
      color: #94A3B8;
      font-size: 11px;
      font-weight: 500;
      flex: 1;
      height: 100%;
    }
    .tab-item i {
      font-size: 17px;
    }
    .tab-item.active,
    .tab-item:hover {
      color: var(--accent-amber);
    }

    /* Responsive Breakpoints */
    @media screen and (max-width: 639px) {
      body {
        padding-bottom: 72px;
      }
      .main-nav,
      .nav-cta-btn {
        display: none;
      }
      .mobile-tab-bar {
        display: flex;
      }
      .cat-title-h1 {
        font-size: 24px;
      }
      .filter-bar-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .subscribe-form {
        flex-direction: column;
      }
      .subscribe-btn {
        justify-content: center;
        width: 100%;
      }
      .context-guide-sec,
      .editors-pick-sec,
      .cat-cta-sec {
        padding: 24px 18px;
      }
    }