/* roulang page: index */
:root {
      --primary-color: #1D4ED8;
      --primary-hover: #1e40af;
      --accent-color: #38BDF8;
      --accent-light: #F0FDF4;
      --bg-main: #F8FAFC;
      --bg-alt: #F1F5F9;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.02);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 12px 28px -4px rgba(29, 78, 216, 0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

    /* Header & Navigation */
    .site-header {
      background-color: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      height: 76px;
      position: sticky;
      top: 0;
      z-index: 1030;
    }

    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-color);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.02em;
    }

    .brand-icon-box {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 1.1rem;
    }

    .nav-link-custom {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      position: relative;
    }

    .nav-link-custom:hover {
      color: var(--primary-color);
    }

    .nav-link-custom.active {
      color: var(--primary-color);
      font-weight: 600;
    }

    .nav-link-custom.active::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 12px;
      right: 12px;
      height: 2px;
      background-color: var(--primary-color);
      border-radius: 2px;
    }

    /* Section Global */
    .app-section {
      padding: 96px 0;
    }

    .section-alt {
      background-color: var(--bg-alt);
    }

    .section-pure {
      background-color: #FFFFFF;
    }

    .section-header {
      margin-bottom: 52px;
    }

    .section-tag {
      display: inline-block;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--primary-color);
      background-color: #EFF6FF;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      border: 1px solid #DBEAFE;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.01em;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 720px;
    }

    /* Hero Section */
    .hero-section {
      padding: 80px 0 90px;
      background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
      border-bottom: 1px solid var(--border-color);
    }

    .hero-badge-group {
      display: inline-flex;
      align-items: center;
      background-color: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background-color: #10B981;
      border-radius: 50%;
      margin-right: 8px;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }

    .hero-p {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 620px;
    }

    .btn-primary-custom {
      background-color: var(--primary-color);
      color: #FFFFFF;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--primary-color);
    }

    .btn-primary-custom:hover {
      background-color: var(--primary-hover);
      color: #FFFFFF;
      box-shadow: 0 8px 20px -2px rgba(29, 78, 216, 0.25);
    }

    .btn-outline-custom {
      background-color: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      padding: 12px 24px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--border-color);
    }

    .btn-outline-custom:hover {
      background-color: var(--bg-alt);
      color: var(--primary-color);
      border-color: #CBD5E1;
    }

    /* Cards Common */
    .app-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      overflow: hidden;
      height: 100%;
    }

    .app-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #CBD5E1;
    }

    /* Channel Quick Entry */
    .channel-pill-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }

    .channel-pill-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }

    .pill-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background-color: #EFF6FF;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
    }

    /* Media Stream Cards (Case Wall) */
    .media-thumb-box {
      aspect-ratio: 16 / 9;
      background-color: #E2E8F0;
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #1E293B, #0F172A);
      color: #FFFFFF;
    }

    .media-thumb-bg {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.85;
      transition: var(--transition);
    }

    .app-card:hover .media-thumb-bg {
      transform: scale(1.05);
    }

    .media-badge-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background-color: rgba(15, 23, 42, 0.75);
      backdrop-filter: blur(4px);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 3px 10px;
      border-radius: 999px;
      font-weight: 500;
    }

    .media-meta-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
      margin-top: 14px;
    }

    /* Metrics Stat */
    .metric-number {
      font-size: 2.75rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Workflow Timeline */
    .step-badge {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background-color: var(--primary-color);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      margin-bottom: 20px;
      box-shadow: 0 0 0 6px #DBEAFE;
    }

    /* Topic Alternate Rows */
    .topic-row {
      margin-bottom: 40px;
    }

    .topic-row:last-child {
      margin-bottom: 0;
    }

    .topic-img-placeholder {
      width: 100%;
      height: 280px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-size: 3rem;
      border: 1px solid var(--border-color);
    }

    /* Partners / CDN Array */
    .partner-item {
      background-color: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 18px 20px;
      text-align: center;
      color: var(--text-muted);
      font-size: 0.92rem;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      transition: var(--transition);
    }

    .partner-item:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background-color: #F8FAFC;
    }

    /* Accordion FAQ */
    .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
      background-color: #FFFFFF;
    }

    .accordion-button {
      font-weight: 600;
      color: var(--text-main);
      padding: 18px 22px;
      font-size: 1.05rem;
      background-color: #FFFFFF;
      box-shadow: none !important;
    }

    .accordion-button:not(.collapsed) {
      color: var(--primary-color);
      background-color: #F8FAFC;
    }

    .accordion-body {
      color: var(--text-muted);
      padding: 18px 22px;
      font-size: 0.95rem;
      line-height: 1.8;
      border-top: 1px solid var(--border-color);
    }

    /* Assurance Strip */
    .assurance-card {
      background-color: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
      box-shadow: var(--shadow-sm);
    }

    .assurance-icon {
      font-size: 1.75rem;
      color: var(--primary-color);
      line-height: 1;
    }

    /* CTA Box */
    .cta-banner {
      background: linear-gradient(135deg, #1E40AF 0%, #1D4ED8 100%);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      color: #FFFFFF;
      text-align: center;
      box-shadow: var(--shadow-hover);
    }

    .cta-banner h2 {
      font-size: 2.2rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .cta-banner p {
      font-size: 1.05rem;
      color: #E0E7FF;
      max-width: 640px;
      margin: 0 auto 32px;
    }

    .btn-light-custom {
      background-color: #FFFFFF;
      color: var(--primary-color);
      font-weight: 700;
      padding: 14px 32px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-light-custom:hover {
      background-color: #F8FAFC;
      color: #1E3A8A;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    }

    /* Footer */
    .site-footer {
      background-color: #F1F5F9;
      border-top: 1px solid var(--border-color);
      padding: 72px 0 36px;
      color: var(--text-muted);
      font-size: 0.92rem;
    }

    .footer-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }

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

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

    .footer-bottom {
      margin-top: 56px;
      padding-top: 24px;
      border-top: 1px solid #CBD5E1;
      font-size: 0.85rem;
    }

    /* Responsive */
    @media (max-width: 991.98px) {
      .app-section {
        padding: 60px 0;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
      .hero-section {
        padding: 50px 0 60px;
      }
      .topic-img-placeholder {
        height: 200px;
        margin-bottom: 20px;
      }
    }

    @media (max-width: 767.98px) {
      .hero-h1 {
        font-size: 1.85rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .metric-number {
        font-size: 2.2rem;
      }
      .cta-banner {
        padding: 40px 20px;
      }
    }

/* roulang page: category1 */
:root {
      --primary-color: #1D4ED8;
      --primary-hover: #1e40af;
      --accent-color: #38BDF8;
      --accent-light: #F0FDF4;
      --bg-main: #F8FAFC;
      --bg-alt: #F1F5F9;
      --bg-card: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 6px -1px rgba(15, 23, 42, 0.02);
      --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --shadow-hover: 0 12px 28px -4px rgba(29, 78, 216, 0.12);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    /* Header & Navigation */
    .site-header {
      background-color: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      height: 76px;
      position: sticky;
      top: 0;
      z-index: 1030;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-color);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.02em;
    }
    .brand-icon-box {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 1.1rem;
    }
    .nav-link-custom {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      position: relative;
    }
    .nav-link-custom:hover {
      color: var(--primary-color);
    }
    .nav-link-custom.active {
      color: var(--primary-color);
      font-weight: 600;
    }
    .nav-link-custom.active::after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 12px;
      right: 12px;
      height: 2px;
      background-color: var(--primary-color);
      border-radius: 2px;
    }
    .btn-primary-custom {
      background-color: var(--primary-color);
      color: #FFFFFF;
      font-weight: 600;
      padding: 10px 24px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: 1px solid var(--primary-color);
      transition: var(--transition);
    }
    .btn-primary-custom:hover {
      background-color: var(--primary-hover);
      color: #FFFFFF;
      box-shadow: 0 8px 20px -2px rgba(29, 78, 216, 0.25);
    }
    /* Breadcrumbs & Category Banner */
    .cat-banner-section {
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 42px 0 36px;
    }
    .custom-breadcrumb {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .custom-breadcrumb a:hover {
      color: var(--primary-color);
    }
    .cat-h1 {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }
    .cat-summary {
      font-size: 0.98rem;
      color: var(--text-muted);
      max-width: 820px;
      margin-bottom: 20px;
    }
    .meta-stat-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background-color: var(--bg-alt);
      border: 1px solid var(--border-color);
      padding: 6px 14px;
      border-radius: 999px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .meta-stat-pill strong {
      color: var(--primary-color);
    }

    /* Interactive Filter Bar */
    .filter-bar-section {
      background-color: #FFFFFF;
      border-bottom: 1px solid var(--border-color);
      padding: 18px 0;
      box-shadow: var(--shadow-sm);
    }
    .filter-pill {
      font-size: 0.86rem;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: 999px;
      background: var(--bg-alt);
      color: var(--text-muted);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .filter-pill:hover {
      background: #EFF6FF;
      color: var(--primary-color);
      border-color: #BFDBFE;
    }
    .filter-pill.active {
      background: var(--primary-color);
      color: #FFFFFF;
      border-color: var(--primary-color);
    }
    .search-filter-input {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 7px 14px;
      font-size: 0.88rem;
      background: #FFFFFF;
      width: 240px;
      transition: var(--transition);
    }
    .search-filter-input:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
    }

    /* Feed Cards Section */
    .feed-section {
      padding: 72px 0;
    }
    .media-stream-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .media-stream-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #93C5FD;
    }
    .stream-viewport {
      aspect-ratio: 16 / 9;
      background: linear-gradient(135deg, #0F172A, #1E293B);
      position: relative;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .viewport-overlay-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(4px);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      transition: var(--transition);
    }
    .media-stream-card:hover .viewport-overlay-icon {
      background: var(--primary-color);
      transform: scale(1.1);
    }
    .viewport-badge {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(15, 23, 42, 0.7);
      backdrop-filter: blur(4px);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 500;
    }
    .viewport-duration {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(15, 23, 42, 0.85);
      color: #FFFFFF;
      font-size: 0.72rem;
      padding: 2px 6px;
      border-radius: 4px;
      font-family: monospace;
    }
    .stream-content {
      padding: 18px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .stream-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .stream-meta {
      font-size: 0.78rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid var(--border-color);
      padding-top: 12px;
      margin-top: 8px;
    }

    /* Rank List Section */
    .rank-section {
      background-color: var(--bg-alt);
      padding: 72px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .rank-row-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: var(--transition);
    }
    .rank-row-card:hover {
      border-color: var(--primary-color);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }
    .rank-num {
      width: 32px;
      height: 32px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      background: var(--bg-alt);
      color: var(--text-muted);
    }
    .rank-num-top {
      background: #EFF6FF;
      color: var(--primary-color);
      border: 1px solid #DBEAFE;
    }
    .rank-hot-bar {
      width: 140px;
      height: 6px;
      background: #E2E8F0;
      border-radius: 3px;
      overflow: hidden;
    }
    .rank-hot-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
      border-radius: 3px;
    }

    /* Guidelines Section */
    .guide-section {
      padding: 80px 0;
      background: #FFFFFF;
    }
    .guide-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      background: var(--bg-main);
      height: 100%;
    }
    .guide-step-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 20px;
    }
    .guide-icon-round {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #EFF6FF;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      flex-shrink: 0;
    }

    /* FAQ Section */
    .faq-section {
      padding: 80px 0;
      background: var(--bg-alt);
      border-top: 1px solid var(--border-color);
    }
    .accordion-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm) !important;
      margin-bottom: 12px;
      overflow: hidden;
      background-color: #FFFFFF;
    }
    .accordion-button {
      font-weight: 600;
      color: var(--text-main);
      padding: 18px 24px;
      font-size: 1rem;
    }
    .accordion-button:not(.collapsed) {
      color: var(--primary-color);
      background-color: #EFF6FF;
      box-shadow: none;
    }
    .accordion-body {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      padding: 20px 24px;
    }

    /* Map & Trust Badges */
    .trust-map-section {
      padding: 80px 0;
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
    }
    .trust-tag-item {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      color: var(--text-muted);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      display: inline-block;
      transition: var(--transition);
    }
    .trust-tag-item:hover {
      background: #FFFFFF;
      border-color: var(--primary-color);
      color: var(--primary-color);
    }
    .security-badge-box {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      background: var(--bg-main);
      display: flex;
      align-items: center;
      gap: 16px;
    }

    /* Footer */
    .site-footer {
      background-color: var(--bg-alt);
      border-top: 1px solid var(--border-color);
      padding: 64px 0 32px;
    }
    .footer-logo {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-color);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .footer-heading {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: var(--primary-color);
    }
    .footer-bottom {
      border-top: 1px solid var(--border-color);
      padding-top: 24px;
      margin-top: 36px;
    }

    @media (max-width: 991px) {
      .cat-banner-section { padding: 32px 0 24px; }
      .cat-h1 { font-size: 1.75rem; }
      .feed-section, .rank-section, .guide-section, .faq-section, .trust-map-section { padding: 50px 0; }
    }