/* roulang page: index */
:root {
      --bg-dark: #0e1117;
      --card-bg: #161b22;
      --card-border: #262c36;
      --card-hover-border: #3d4756;
      --brand-amber: #e5a93b;
      --brand-amber-hover: #f5b94c;
      --cinema-cyan: #22d3ee;
      --cinema-cyan-dim: rgba(34, 211, 238, 0.12);
      --text-primary: #f0f6fc;
      --text-secondary: #8b949e;
      --text-muted: #484f58;
      --nav-bg: #11151c;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.55);
      --transition-base: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    /* Base Reset & Typography */
    body {
      background-color: var(--bg-dark);
      color: var(--text-primary);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Government-style Formal Utility Top Bar */
    .top-gov-bar {
      background-color: #080a0d;
      border-bottom: 1px solid #1f242d;
      font-size: 0.8125rem;
      color: var(--text-secondary);
      padding: 6px 0;
    }
    .top-gov-bar a {
      color: var(--text-secondary);
    }
    .top-gov-bar a:hover {
      color: var(--brand-amber);
    }

    /* Main Navigation Header */
    .main-header {
      background-color: var(--nav-bg);
      border-bottom: 1px solid var(--card-border);
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .navbar-brand-custom {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-badge-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--brand-amber), #c48318);
      color: #0b0d11;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }
    .nav-link-custom {
      color: #c9d1d9;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.5rem 1rem !important;
      border-radius: var(--radius-sm);
      transition: var(--transition-base);
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--brand-amber) !important;
      background-color: rgba(229, 169, 59, 0.08);
    }
    .btn-gov-capsule {
      background: transparent;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      padding: 6px 14px;
      font-size: 0.84rem;
      font-weight: 500;
      border-radius: 50px;
      transition: var(--transition-base);
    }
    .btn-gov-capsule:hover {
      border-color: var(--brand-amber);
      color: var(--brand-amber);
      background-color: rgba(229, 169, 59, 0.05);
    }

    /* Hero Section (Tool Landing / Data-Driven) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(34, 211, 238, 0.08) 0%, rgba(14, 17, 23, 0) 70%),
                  linear-gradient(180deg, #11151c 0%, #0e1117 100%);
      padding: 4.5rem 0 3.5rem;
      border-bottom: 1px solid var(--card-border);
      position: relative;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: rgba(229, 169, 59, 0.12);
      border: 1px solid rgba(229, 169, 59, 0.3);
      border-radius: 50px;
      color: var(--brand-amber);
      font-size: 0.84rem;
      font-weight: 600;
      margin-bottom: 1.25rem;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 1.25rem;
      color: var(--text-primary);
    }
    .hero-title span {
      color: var(--brand-amber);
    }
    .hero-desc {
      color: var(--text-secondary);
      font-size: 1.05rem;
      line-height: 1.75;
      margin-bottom: 2rem;
    }
    .hero-panel-box {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 1.75rem;
      box-shadow: var(--shadow-subtle);
    }
    .btn-brand-amber {
      background-color: var(--brand-amber);
      color: #0b0e14;
      font-weight: 700;
      padding: 11px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--brand-amber);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
    }
    .btn-brand-amber:hover {
      background-color: var(--brand-amber-hover);
      color: #0b0e14;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(229, 169, 59, 0.35);
    }
    .btn-outline-custom {
      background-color: transparent;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      font-weight: 600;
      padding: 11px 24px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
    }
    .btn-outline-custom:hover {
      border-color: var(--cinema-cyan);
      color: var(--cinema-cyan);
      background-color: var(--cinema-cyan-dim);
    }

    /* Common Section Styles */
    .section-spacing {
      padding: 4.5rem 0;
      border-bottom: 1px solid #1a202c;
    }
    .section-header-clean {
      margin-bottom: 2.75rem;
    }
    .section-tag-cinema {
      color: var(--cinema-cyan);
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin-bottom: 0.5rem;
      display: inline-block;
    }
    .section-heading-clean {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.75rem;
    }
    .section-intro-text {
      color: var(--text-secondary);
      font-size: 0.96rem;
      line-height: 1.7;
      max-width: 820px;
    }

    /* Feature & Module Cards */
    .custom-feature-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      height: 100%;
      transition: var(--transition-base);
    }
    .custom-feature-card:hover {
      border-color: var(--card-hover-border);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .card-icon-wrap {
      width: 46px;
      height: 46px;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
    }
    .icon-amber {
      background-color: rgba(229, 169, 59, 0.12);
      color: var(--brand-amber);
    }
    .icon-cyan {
      background-color: rgba(34, 211, 238, 0.12);
      color: var(--cinema-cyan);
    }

    /* Poster / Content Grid */
    .poster-item-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition-base);
      height: 100%;
    }
    .poster-item-card:hover {
      border-color: var(--brand-amber);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .poster-media-box {
      aspect-ratio: 16 / 10;
      overflow: hidden;
      position: relative;
      background-color: #0b0e14;
    }
    .poster-media-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .poster-item-card:hover .poster-media-box img {
      transform: scale(1.04);
    }
    .poster-badge-top {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(14, 17, 23, 0.85);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      padding: 2px 8px;
      font-size: 0.75rem;
      border-radius: var(--radius-sm);
      color: var(--cinema-cyan);
      font-weight: 600;
    }
    .poster-content-box {
      padding: 1.25rem;
    }

    /* Comparison Box */
    .compare-wrapper {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 2rem;
    }
    .compare-col {
      padding: 1.5rem;
      border-radius: var(--radius-md);
    }
    .compare-col-legacy {
      background-color: rgba(255, 255, 255, 0.02);
      border: 1px solid #202632;
    }
    .compare-col-modern {
      background-color: rgba(229, 169, 59, 0.04);
      border: 1px solid rgba(229, 169, 59, 0.35);
    }

    /* Timeline & Milestones */
    .timeline-stream {
      position: relative;
      padding-left: 28px;
      border-left: 2px solid #232a35;
    }
    .timeline-node {
      position: relative;
      margin-bottom: 2rem;
    }
    .timeline-node::before {
      content: '';
      position: absolute;
      left: -35px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--brand-amber);
      box-shadow: 0 0 10px var(--brand-amber);
    }

    /* Leaderboard & Ranking List */
    .rank-list-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 14px 18px;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      transition: var(--transition-base);
    }
    .rank-list-item:hover {
      border-color: var(--cinema-cyan);
      transform: translateX(4px);
    }
    .rank-number {
      font-size: 1.2rem;
      font-weight: 800;
      width: 28px;
      text-align: center;
      color: var(--brand-amber);
      font-family: 'DIN Alternate', 'Trebuchet MS', sans-serif;
    }

    /* Accordion FAQ Override */
    .accordion-item {
      background-color: var(--card-bg) !important;
      border: 1px solid var(--card-border) !important;
      border-radius: var(--radius-md) !important;
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-button {
      background-color: var(--card-bg) !important;
      color: var(--text-primary) !important;
      font-weight: 600;
      padding: 1.25rem;
      box-shadow: none !important;
    }
    .accordion-button:not(.collapsed) {
      color: var(--brand-amber) !important;
      border-bottom: 1px solid var(--card-border);
    }
    .accordion-button::after {
      filter: invert(0.8);
    }
    .accordion-body {
      color: var(--text-secondary);
      font-size: 0.94rem;
      line-height: 1.7;
      padding: 1.25rem;
    }

    /* Form Card */
    .form-dark-control {
      background-color: #0b0e14;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 0.92rem;
    }
    .form-dark-control:focus {
      background-color: #0b0e14;
      border-color: var(--brand-amber);
      color: var(--text-primary);
      box-shadow: 0 0 0 3px rgba(229, 169, 59, 0.15);
    }

    /* Metric Counters */
    .metric-val {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--brand-amber);
      line-height: 1.1;
      font-family: 'DIN Alternate', 'Trebuchet MS', sans-serif;
    }

    /* Tag Cloud */
    .cinema-tag {
      display: inline-block;
      padding: 5px 12px;
      font-size: 0.8125rem;
      color: var(--text-secondary);
      background-color: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--card-border);
      border-radius: 50px;
      margin: 4px;
      transition: var(--transition-base);
    }
    .cinema-tag:hover {
      color: var(--brand-amber);
      border-color: var(--brand-amber);
      background-color: rgba(229, 169, 59, 0.08);
    }

    /* Footer Styles */
    .site-footer {
      background-color: #090c10;
      border-top: 1px solid var(--card-border);
      padding: 4rem 0 2rem;
      font-size: 0.875rem;
    }
    .footer-title {
      font-size: 0.98rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.25rem;
      position: relative;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-list li {
      margin-bottom: 0.65rem;
    }
    .footer-nav-list a {
      color: var(--text-secondary);
    }
    .footer-nav-list a:hover {
      color: var(--brand-amber);
    }
    .footer-bottom-bar {
      border-top: 1px solid #1a202a;
      margin-top: 3rem;
      padding-top: 1.5rem;
      color: var(--text-muted);
      font-size: 0.8125rem;
    }

    /* Responsive adjustments */
    @media (max-width: 991.98px) {
      .hero-title {
        font-size: 2.15rem;
      }
      .section-heading-clean {
        font-size: 1.65rem;
      }
    }
    @media (max-width: 575.98px) {
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-section {
        padding: 3rem 0 2.5rem;
      }
    }

/* roulang page: category1 */
:root {
      --bg-dark: #0e1117;
      --card-bg: #161b22;
      --card-border: #262c36;
      --card-hover-border: #3d4756;
      --brand-amber: #e5a93b;
      --brand-amber-hover: #f5b94c;
      --cinema-cyan: #22d3ee;
      --cinema-cyan-dim: rgba(34, 211, 238, 0.12);
      --text-primary: #f0f6fc;
      --text-secondary: #8b949e;
      --text-muted: #484f58;
      --nav-bg: #11151c;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.55);
      --transition-base: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    body {
      background-color: var(--bg-dark);
      color: var(--text-primary);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Government-style Formal Utility Top Bar */
    .top-gov-bar {
      background-color: #080a0d;
      border-bottom: 1px solid #1f242d;
      font-size: 0.8125rem;
      color: var(--text-secondary);
      padding: 6px 0;
    }
    .top-gov-bar a {
      color: var(--text-secondary);
    }
    .top-gov-bar a:hover {
      color: var(--brand-amber);
    }

    /* Main Navigation Header */
    .main-header {
      background-color: var(--nav-bg);
      border-bottom: 1px solid var(--card-border);
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .navbar-brand-custom {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-badge-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--brand-amber), #c48318);
      color: #0b0d11;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }
    .nav-link-custom {
      color: #c9d1d9;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.5rem 1rem !important;
      border-radius: var(--radius-sm);
      transition: var(--transition-base);
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--brand-amber) !important;
      background-color: rgba(229, 169, 59, 0.08);
    }
    .btn-gov-capsule {
      background: transparent;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      padding: 6px 14px;
      font-size: 0.84rem;
      font-weight: 500;
      border-radius: 50px;
      transition: var(--transition-base);
    }
    .btn-gov-capsule:hover {
      border-color: var(--brand-amber);
      color: var(--brand-amber);
      background-color: rgba(229, 169, 59, 0.05);
    }

    /* Category Header Banner */
    .category-banner {
      background: radial-gradient(circle at 85% 20%, rgba(229, 169, 59, 0.08) 0%, rgba(14, 17, 23, 0) 65%),
                  linear-gradient(180deg, #121720 0%, #0e1117 100%);
      padding: 3.5rem 0 2.5rem;
      border-bottom: 1px solid var(--card-border);
      position: relative;
    }
    .category-title {
      font-size: 2.35rem;
      font-weight: 800;
      color: var(--text-primary);
      line-height: 1.3;
      margin-bottom: 0.85rem;
    }
    .category-title span {
      color: var(--brand-amber);
    }
    .category-intro {
      color: var(--text-secondary);
      font-size: 0.98rem;
      max-width: 820px;
      line-height: 1.7;
      margin-bottom: 1.5rem;
    }
    .meta-stat-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: #161b22;
      border: 1px solid var(--card-border);
      padding: 5px 14px;
      border-radius: 50px;
      font-size: 0.82rem;
      color: #c9d1d9;
    }
    .meta-stat-pill i {
      color: var(--cinema-cyan);
    }

    /* Filter Matrix Block */
    .filter-matrix-wrapper {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      margin-bottom: 2.5rem;
      box-shadow: var(--shadow-subtle);
    }
    .filter-row {
      display: flex;
      align-items: flex-start;
      padding: 0.65rem 0;
      border-bottom: 1px dashed #202632;
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      width: 90px;
      flex-shrink: 0;
      color: var(--text-secondary);
      font-size: 0.85rem;
      font-weight: 600;
      padding-top: 4px;
    }
    .filter-items {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-chip {
      display: inline-block;
      padding: 3px 12px;
      border-radius: 4px;
      font-size: 0.82rem;
      color: #adbac7;
      background-color: rgba(255, 255, 255, 0.03);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition-base);
    }
    .filter-chip:hover {
      color: var(--brand-amber);
      border-color: rgba(229, 169, 59, 0.3);
    }
    .filter-chip.active {
      background-color: rgba(229, 169, 59, 0.15);
      border-color: var(--brand-amber);
      color: var(--brand-amber);
      font-weight: 600;
    }

    /* Film Grid Cards */
    .film-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition-base);
      position: relative;
    }
    .film-card:hover {
      border-color: var(--brand-amber);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .film-poster-box {
      position: relative;
      width: 100%;
      aspect-ratio: 2/3;
      background-color: #0d1117;
      overflow: hidden;
    }
    .film-poster-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .film-card:hover .film-poster-box img {
      transform: scale(1.05);
    }
    .badge-resolution {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(14, 17, 23, 0.85);
      border: 1px solid rgba(229, 169, 59, 0.6);
      color: var(--brand-amber);
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 7px;
      border-radius: 3px;
      backdrop-filter: blur(4px);
    }
    .badge-audio {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(14, 17, 23, 0.85);
      border: 1px solid rgba(34, 211, 238, 0.6);
      color: var(--cinema-cyan);
      font-size: 0.72rem;
      font-weight: 600;
      padding: 2px 7px;
      border-radius: 3px;
      backdrop-filter: blur(4px);
    }
    .film-card-body {
      padding: 1rem 1rem 1.25rem;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .film-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.35rem;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .film-meta-sub {
      font-size: 0.78rem;
      color: var(--text-secondary);
      display: flex;
      justify-content: space-between;
      margin-bottom: 0.75rem;
    }
    .film-card-specs {
      font-size: 0.75rem;
      color: #768390;
      line-height: 1.4;
      background: rgba(0, 0, 0, 0.2);
      padding: 6px 8px;
      border-radius: 4px;
      border-left: 2px solid var(--brand-amber);
      margin-top: auto;
    }

    /* Pagination Box */
    .pagination-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
      padding: 1.5rem 0;
      margin-top: 1rem;
      border-top: 1px solid var(--card-border);
    }
    .custom-page-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 12px;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-sm);
      color: #c9d1d9;
      font-size: 0.85rem;
      font-weight: 600;
      transition: var(--transition-base);
    }
    .custom-page-btn:hover {
      border-color: var(--brand-amber);
      color: var(--brand-amber);
    }
    .custom-page-btn.active {
      background: var(--brand-amber);
      color: #0b0e14;
      border-color: var(--brand-amber);
    }

    /* Deep Audiovisual Guide (Section 5) */
    .tech-guide-box {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-lg);
      padding: 2.25rem;
      margin-bottom: 2rem;
    }
    .spec-item-box {
      background: #0d1117;
      border: 1px solid #1f2530;
      border-radius: var(--radius-sm);
      padding: 1.25rem;
      height: 100%;
    }
    .spec-item-icon {
      font-size: 1.35rem;
      color: var(--brand-amber);
      margin-bottom: 0.75rem;
    }

    /* Hot Tags Cloud */
    .tag-cloud-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .cloud-tag {
      background: #161b22;
      border: 1px solid #232935;
      padding: 7px 16px;
      border-radius: 50px;
      font-size: 0.84rem;
      color: #9da7b3;
      transition: var(--transition-base);
    }
    .cloud-tag:hover {
      border-color: var(--cinema-cyan);
      color: var(--cinema-cyan);
      background-color: var(--cinema-cyan-dim);
    }

    /* Hardware & Decoding Table */
    .decode-table-container {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .cinema-table {
      width: 100%;
      margin-bottom: 0;
      color: #c9d1d9;
      font-size: 0.88rem;
    }
    .cinema-table th {
      background-color: #1a202c;
      color: var(--brand-amber);
      padding: 12px 18px;
      border-bottom: 1px solid #2d3748;
      font-weight: 600;
      white-space: nowrap;
    }
    .cinema-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #1f2530;
      vertical-align: middle;
    }
    .cinema-table tr:last-child td {
      border-bottom: none;
    }

    /* Audit & Ingestion Cards */
    .audit-step-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      height: 100%;
      position: relative;
    }
    .audit-step-number {
      font-size: 1.75rem;
      font-weight: 800;
      color: rgba(229, 169, 59, 0.25);
      position: absolute;
      top: 15px;
      right: 18px;
      line-height: 1;
    }

    /* Buttons */
    .btn-brand-amber {
      background-color: var(--brand-amber);
      color: #0b0e14;
      font-weight: 700;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--brand-amber);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
    }
    .btn-brand-amber:hover {
      background-color: var(--brand-amber-hover);
      color: #0b0e14;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(229, 169, 59, 0.35);
    }
    .btn-outline-custom {
      background-color: transparent;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      font-weight: 600;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
    }
    .btn-outline-custom:hover {
      border-color: var(--cinema-cyan);
      color: var(--cinema-cyan);
      background-color: var(--cinema-cyan-dim);
    }

    /* Section Typography */
    .section-spacing {
      padding: 4rem 0;
      border-bottom: 1px solid #1a202c;
    }
    .section-tag-cinema {
      color: var(--cinema-cyan);
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin-bottom: 0.4rem;
      display: inline-block;
    }
    .section-heading-clean {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.75rem;
    }
    .section-intro-text {
      color: var(--text-secondary);
      font-size: 0.94rem;
      line-height: 1.7;
    }

    /* Unified Footer */
    .cinema-footer {
      background-color: #090c10;
      border-top: 1px solid #1a202c;
      padding: 4.5rem 0 2rem;
      color: var(--text-secondary);
      font-size: 0.875rem;
    }
    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.2rem;
      letter-spacing: 0.5px;
    }
    .footer-link {
      margin-bottom: 0.75rem;
    }
    .footer-link a {
      color: var(--text-secondary);
      transition: var(--transition-base);
    }
    .footer-link a:hover {
      color: var(--brand-amber);
      padding-left: 4px;
    }
    .footer-bottom-line {
      border-top: 1px solid #161c24;
      padding-top: 1.75rem;
      margin-top: 3.5rem;
    }

    @media (max-width: 991.98px) {
      .category-title { font-size: 1.85rem; }
      .film-poster-box { aspect-ratio: 2/3; }
      .filter-label { width: 100%; margin-bottom: 6px; }
      .filter-row { flex-direction: column; }
    }

/* roulang page: category2 */
:root {
      --bg-dark: #0e1117;
      --card-bg: #161b22;
      --card-border: #262c36;
      --card-hover-border: #3d4756;
      --brand-amber: #e5a93b;
      --brand-amber-hover: #f5b94c;
      --cinema-cyan: #22d3ee;
      --cinema-cyan-dim: rgba(34, 211, 238, 0.12);
      --text-primary: #f0f6fc;
      --text-secondary: #8b949e;
      --text-muted: #484f58;
      --nav-bg: #11151c;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.55);
      --transition-base: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    /* Base Reset & Typography */
    body {
      background-color: var(--bg-dark);
      color: var(--text-primary);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition-base);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Government-style Formal Utility Top Bar */
    .top-gov-bar {
      background-color: #080a0d;
      border-bottom: 1px solid #1f242d;
      font-size: 0.8125rem;
      color: var(--text-secondary);
      padding: 6px 0;
    }
    .top-gov-bar a {
      color: var(--text-secondary);
    }
    .top-gov-bar a:hover {
      color: var(--brand-amber);
    }

    /* Main Navigation Header */
    .main-header {
      background-color: var(--nav-bg);
      border-bottom: 1px solid var(--card-border);
      position: sticky;
      top: 0;
      z-index: 1020;
    }
    .navbar-brand-custom {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-badge-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--brand-amber), #c48318);
      color: #0b0d11;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }
    .nav-link-custom {
      color: #c9d1d9;
      font-size: 0.9375rem;
      font-weight: 500;
      padding: 0.5rem 1rem !important;
      border-radius: var(--radius-sm);
      transition: var(--transition-base);
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--brand-amber) !important;
      background-color: rgba(229, 169, 59, 0.08);
    }
    .btn-gov-capsule {
      background: transparent;
      border: 1px solid var(--card-border);
      color: var(--text-primary);
      padding: 6px 14px;
      font-size: 0.84rem;
      font-weight: 500;
      border-radius: 50px;
      transition: var(--transition-base);
    }
    .btn-gov-capsule:hover {
      border-color: var(--brand-amber);
      color: var(--brand-amber);
      background-color: rgba(229, 169, 59, 0.05);
    }
    .btn-brand-amber {
      background-color: var(--brand-amber);
      color: #0b0e14;
      font-weight: 700;
      padding: 11px 24px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--brand-amber);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition-base);
    }
    .btn-brand-amber:hover {
      background-color: var(--brand-amber-hover);
      color: #0b0e14;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(229, 169, 59, 0.35);
    }

    /* Category Dedicated Hero / Documentation Help Center Style */
    .category-hero {
      background: radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.08) 0%, rgba(14, 17, 23, 0) 70%),
                  linear-gradient(180deg, #11151c 0%, #0e1117 100%);
      padding: 3.8rem 0 3.2rem;
      border-bottom: 1px solid var(--card-border);
      text-align: center;
    }
    .category-hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 14px;
      background-color: rgba(229, 169, 59, 0.1);
      border: 1px solid rgba(229, 169, 59, 0.25);
      border-radius: 50px;
      color: var(--brand-amber);
      font-size: 0.82rem;
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .category-hero-h1 {
      font-size: 2.35rem;
      font-weight: 800;
      color: var(--text-primary);
      margin-bottom: 1rem;
      letter-spacing: -0.5px;
    }
    .category-hero-h1 span {
      color: var(--brand-amber);
    }
    .category-hero-intro {
      color: var(--text-secondary);
      max-width: 760px;
      margin: 0 auto 1.8rem;
      font-size: 0.98rem;
      line-height: 1.7;
    }
    .search-archive-wrapper {
      max-width: 680px;
      margin: 0 auto 1.5rem;
      position: relative;
    }
    .search-archive-input {
      background: #161b22;
      border: 1px solid #2f3746;
      border-radius: 50px;
      color: #fff;
      padding: 14px 24px 14px 50px;
      width: 100%;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition-base);
    }
    .search-archive-input:focus {
      border-color: var(--brand-amber);
      box-shadow: 0 0 0 3px rgba(229, 169, 59, 0.15);
    }
    .search-icon-fixed {
      position: absolute;
      left: 20px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-muted);
      font-size: 1.1rem;
    }
    .search-action-btn {
      position: absolute;
      right: 6px;
      top: 6px;
      bottom: 6px;
      background-color: var(--brand-amber);
      border: none;
      border-radius: 50px;
      color: #0b0e14;
      font-weight: 700;
      font-size: 0.85rem;
      padding: 0 20px;
      display: flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-base);
    }
    .search-action-btn:hover {
      background-color: var(--brand-amber-hover);
    }
    .hot-chips-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      margin-top: 1rem;
    }
    .hot-chip-item {
      font-size: 0.8rem;
      color: var(--text-secondary);
      background-color: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--card-border);
      border-radius: 50px;
      padding: 4px 12px;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .hot-chip-item:hover {
      border-color: var(--cinema-cyan);
      color: var(--cinema-cyan);
    }
    .archive-meta-stats {
      display: flex;
      justify-content: center;
      gap: 30px;
      margin-top: 2rem;
      padding-top: 1.5rem;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }
    .meta-stat-item {
      text-align: left;
    }
    .meta-stat-val {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      font-family: "DIN Alternate", "Trebuchet MS", sans-serif;
    }
    .meta-stat-lbl {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* Common Sections */
    .section-spacing {
      padding: 4rem 0;
      border-bottom: 1px solid #1a202c;
    }
    .section-header-clean {
      margin-bottom: 2.25rem;
    }
    .section-tag-cinema {
      color: var(--cinema-cyan);
      font-size: 0.8125rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.2px;
      margin-bottom: 0.4rem;
      display: inline-block;
    }
    .section-heading-clean {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.5rem;
    }
    .section-intro-text {
      color: var(--text-secondary);
      font-size: 0.94rem;
      line-height: 1.65;
    }

    /* Filter Matrix (Gov/Archive Grade) */
    .filter-matrix-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.5rem;
    }
    .filter-row {
      display: flex;
      align-items: baseline;
      padding: 8px 0;
      border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    }
    .filter-row:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }
    .filter-label {
      width: 90px;
      flex-shrink: 0;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }
    .filter-options {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      flex-grow: 1;
    }
    .filter-pill {
      font-size: 0.8125rem;
      padding: 3px 12px;
      border-radius: var(--radius-sm);
      color: var(--text-secondary);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition-base);
    }
    .filter-pill:hover {
      color: var(--text-primary);
      background-color: rgba(255, 255, 255, 0.05);
    }
    .filter-pill.active {
      background-color: rgba(229, 169, 59, 0.15);
      color: var(--brand-amber);
      font-weight: 600;
      border-color: rgba(229, 169, 59, 0.35);
    }

    /* Movie / Serial Grid Cards */
    .cinema-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: var(--transition-base);
      position: relative;
    }
    .cinema-card:hover {
      transform: translateY(-4px);
      border-color: var(--card-hover-border);
      box-shadow: var(--shadow-hover);
    }
    .card-thumb-wrap {
      position: relative;
      width: 100%;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background-color: #0b0e14;
    }
    .card-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .cinema-card:hover .card-thumb-wrap img {
      transform: scale(1.04);
    }
    .card-spec-tag {
      position: absolute;
      top: 10px;
      right: 10px;
      background-color: rgba(14, 17, 23, 0.85);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--cinema-cyan);
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .card-year-tag {
      position: absolute;
      bottom: 10px;
      left: 10px;
      background-color: rgba(0, 0, 0, 0.75);
      font-size: 0.72rem;
      color: #cbd5e1;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .cinema-card-body {
      padding: 1.15rem;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .card-item-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.4rem;
      white-space: nowrap;
      overflow: hidden;
      text-shadow: none;
      text-overflow: ellipsis;
    }
    .card-item-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 0.75rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .score-badge {
      color: var(--brand-amber);
      font-weight: 700;
      font-size: 0.85rem;
    }
    .card-item-desc {
      font-size: 0.83rem;
      color: var(--text-secondary);
      line-height: 1.5;
      margin-bottom: 1rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-foot-action {
      margin-top: auto;
      padding-top: 0.75rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .status-indicator {
      font-size: 0.75rem;
      color: #10b981;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .btn-play-link {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--brand-amber);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .btn-play-link:hover {
      color: var(--brand-amber-hover);
      text-decoration: underline;
    }

    /* Standard Pagination */
    .pagination-archive {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin-top: 2.5rem;
    }
    .page-item-custom {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 38px;
      height: 38px;
      padding: 0 10px;
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-sm);
      color: var(--text-secondary);
      font-size: 0.875rem;
      font-weight: 600;
      transition: var(--transition-base);
    }
    .page-item-custom:hover {
      border-color: var(--brand-amber);
      color: var(--brand-amber);
    }
    .page-item-custom.active {
      background-color: var(--brand-amber);
      border-color: var(--brand-amber);
      color: #0e1117;
    }

    /* Depth Guide Feature Grid */
    .feature-guide-box {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      height: 100%;
    }
    .guide-icon-pill {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background-color: rgba(34, 211, 238, 0.1);
      color: var(--cinema-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 1.25rem;
    }

    /* Tag Cloud Matrix */
    .tag-cloud-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag-cloud-chip {
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      color: var(--text-secondary);
      padding: 8px 16px;
      border-radius: 50px;
      font-size: 0.84rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition-base);
    }
    .tag-cloud-chip:hover {
      border-color: var(--cinema-cyan);
      color: var(--cinema-cyan);
      background-color: var(--cinema-cyan-dim);
    }
    .tag-cloud-chip span {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* Accordion FAQ in Dark Theme */
    .custom-accordion .accordion-item {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      margin-bottom: 12px;
      border-radius: var(--radius-md) !important;
      overflow: hidden;
    }
    .custom-accordion .accordion-button {
      background-color: var(--card-bg);
      color: var(--text-primary);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 1.15rem 1.25rem;
      box-shadow: none !important;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      background-color: rgba(229, 169, 59, 0.08);
      color: var(--brand-amber);
      border-bottom: 1px solid var(--card-border);
    }
    .custom-accordion .accordion-button::after {
      filter: invert(1) brightness(0.7);
    }
    .custom-accordion .accordion-button:not(.collapsed)::after {
      filter: invert(72%) sepia(50%) saturate(1000%) hue-rotate(350deg);
    }
    .custom-accordion .accordion-body {
      color: var(--text-secondary);
      font-size: 0.9rem;
      line-height: 1.7;
      padding: 1.25rem;
      background-color: #12161d;
    }

    /* Standard Box & Audit */
    .audit-step-card {
      background-color: var(--card-bg);
      border: 1px solid var(--card-border);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      position: relative;
      height: 100%;
    }
    .audit-step-num {
      position: absolute;
      top: 15px;
      right: 15px;
      font-size: 1.75rem;
      font-weight: 800;
      color: rgba(255, 255, 255, 0.05);
      font-family: "DIN Alternate", "Trebuchet MS", sans-serif;
    }

    /* Footer Styles aligned with index */
    .cinema-footer {
      background-color: #0b0e14;
      border-top: 1px solid var(--card-border);
      padding: 4.5rem 0 2rem;
    }
    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 1.25rem;
      letter-spacing: 0.5px;
    }
    .footer-link {
      margin-bottom: 0.75rem;
    }
    .footer-link a {
      color: var(--text-secondary);
      font-size: 0.875rem;
    }
    .footer-link a:hover {
      color: var(--brand-amber);
    }
    .footer-bottom-line {
      border-top: 1px solid #1a202c;
      padding-top: 1.75rem;
      margin-top: 1.5rem;
    }

    @media (max-width: 991.98px) {
      .navbar-brand-custom { font-size: 1.2rem; }
      .category-hero-h1 { font-size: 1.95rem; }
      .archive-meta-stats { flex-wrap: wrap; gap: 16px; justify-content: flex-start; }
      .section-spacing { padding: 3rem 0; }
    }
    @media (max-width: 767.98px) {
      .filter-row { flex-direction: column; gap: 8px; }
      .filter-label { width: 100%; }
      .category-hero { padding: 2.75rem 0 2.25rem; }
      .category-hero-h1 { font-size: 1.65rem; }
    }

/* roulang page: category3 */
:root {
        --bg-dark: #0e1117;
        --card-bg: #161b22;
        --card-border: #262c36;
        --card-hover-border: #3d4756;
        --brand-amber: #e5a93b;
        --brand-amber-hover: #f5b94c;
        --cinema-cyan: #22d3ee;
        --cinema-cyan-dim: rgba(34, 211, 238, 0.12);
        --text-primary: #f0f6fc;
        --text-secondary: #8b949e;
        --text-muted: #484f58;
        --nav-bg: #11151c;
        --radius-sm: 6px;
        --radius-md: 10px;
        --radius-lg: 16px;
        --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
        --shadow-hover: 0 16px 32px rgba(0, 0, 0, 0.55);
        --transition-base: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    /* Base Reset & Typography */
    body {
        background-color: var(--bg-dark);
        color: var(--text-primary);
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
        line-height: 1.65;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }
    a {
        text-decoration: none;
        color: inherit;
        transition: var(--transition-base);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    /* Top Utility Bar */
    .top-gov-bar {
        background-color: #080a0d;
        border-bottom: 1px solid #1f242d;
        font-size: 0.8125rem;
        color: var(--text-secondary);
        padding: 6px 0;
    }
    .top-gov-bar a {
        color: var(--text-secondary);
    }
    .top-gov-bar a:hover {
        color: var(--brand-amber);
    }

    /* Main Navigation Header */
    .main-header {
        background-color: var(--nav-bg);
        border-bottom: 1px solid var(--card-border);
        position: sticky;
        top: 0;
        z-index: 1020;
    }
    .navbar-brand-custom {
        font-size: 1.35rem;
        font-weight: 800;
        letter-spacing: 0.5px;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .brand-badge-icon {
        width: 34px;
        height: 34px;
        background: linear-gradient(135deg, var(--brand-amber), #c48318);
        color: #0b0d11;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.1rem;
    }
    .nav-link-custom {
        color: #c9d1d9;
        font-size: 0.9375rem;
        font-weight: 500;
        padding: 0.5rem 1rem !important;
        border-radius: var(--radius-sm);
        transition: var(--transition-base);
    }
    .nav-link-custom:hover, .nav-link-custom.active {
        color: var(--brand-amber) !important;
        background-color: rgba(229, 169, 59, 0.08);
    }
    .btn-gov-capsule {
        background: transparent;
        border: 1px solid var(--card-border);
        color: var(--text-primary);
        padding: 6px 14px;
        font-size: 0.84rem;
        font-weight: 500;
        border-radius: 50px;
        transition: var(--transition-base);
    }
    .btn-gov-capsule:hover {
        border-color: var(--brand-amber);
        color: var(--brand-amber);
        background-color: rgba(229, 169, 59, 0.05);
    }
    .btn-brand-amber {
        background-color: var(--brand-amber);
        color: #0b0e14;
        font-weight: 700;
        padding: 10px 22px;
        border-radius: var(--radius-sm);
        border: 1px solid var(--brand-amber);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition-base);
    }
    .btn-brand-amber:hover {
        background-color: var(--brand-amber-hover);
        color: #0b0e14;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(229, 169, 59, 0.35);
    }

    /* Category Header Banner */
    .category-header-section {
        background: radial-gradient(circle at 85% 15%, rgba(34, 211, 238, 0.07) 0%, rgba(14, 17, 23, 0) 70%),
                    linear-gradient(180deg, #11151c 0%, #0e1117 100%);
        padding: 3.5rem 0 3rem;
        border-bottom: 1px solid var(--card-border);
    }
    .category-h1 {
        font-size: 2.3rem;
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 1rem;
        color: var(--text-primary);
    }
    .category-h1 span {
        color: var(--brand-amber);
    }
    .category-summary {
        color: var(--text-secondary);
        font-size: 1.02rem;
        line-height: 1.75;
        max-width: 860px;
    }
    .meta-stat-strip {
        display: flex;
        flex-wrap: wrap;
        gap: 12px 24px;
        margin-top: 1.75rem;
        padding-top: 1.5rem;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
    }
    .meta-stat-item {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.875rem;
        color: var(--text-secondary);
    }
    .meta-stat-item strong {
        color: var(--text-primary);
    }

    /* Lab Eligibility Card (Blueprint Hero) */
    .lab-eligibility-box {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: var(--radius-lg);
        padding: 1.75rem;
        box-shadow: var(--shadow-subtle);
        position: relative;
        overflow: hidden;
    }
    .lab-eligibility-box::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--brand-amber), var(--cinema-cyan));
    }
    .privilege-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background-color: rgba(34, 211, 238, 0.12);
        color: var(--cinema-cyan);
        border: 1px solid rgba(34, 211, 238, 0.3);
        padding: 4px 10px;
        border-radius: 4px;
        font-size: 0.78rem;
        font-weight: 600;
        margin-bottom: 1rem;
    }

    /* Common Section Styles */
    .section-spacing {
        padding: 4rem 0;
        border-bottom: 1px solid #1a202c;
    }
    .section-tag-cinema {
        color: var(--cinema-cyan);
        font-size: 0.8125rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1.2px;
        margin-bottom: 0.5rem;
        display: inline-block;
    }
    .section-heading-clean {
        font-size: 1.85rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 0.75rem;
    }
    .section-intro-text {
        color: var(--text-secondary);
        font-size: 0.95rem;
        line-height: 1.7;
    }

    /* Multi-dimension Filter Matrix */
    .filter-matrix-card {
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: var(--radius-md);
        padding: 1.5rem;
    }
    .filter-row {
        display: flex;
        align-items: flex-start;
        padding: 0.75rem 0;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
    }
    .filter-row:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .filter-row:first-child {
        padding-top: 0;
    }
    .filter-label {
        min-width: 96px;
        font-size: 0.85rem;
        color: var(--text-muted);
        font-weight: 600;
        padding-top: 4px;
    }
    .filter-items {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .filter-pill {
        font-size: 0.825rem;
        color: var(--text-secondary);
        padding: 4px 12px;
        border-radius: 4px;
        border: 1px solid transparent;
        background: rgba(255, 255, 255, 0.03);
        cursor: pointer;
        transition: var(--transition-base);
    }
    .filter-pill:hover {
        color: var(--brand-amber);
        border-color: rgba(229, 169, 59, 0.3);
    }
    .filter-pill.active {
        color: #0b0e14;
        background-color: var(--brand-amber);
        font-weight: 600;
    }

    /* Technical Article Cards */
    .tech-card {
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        height: 100%;
        transition: var(--transition-base);
    }
    .tech-card:hover {
        transform: translateY(-4px);
        border-color: var(--card-hover-border);
        box-shadow: var(--shadow-hover);
    }
    .tech-card-thumb-wrapper {
        position: relative;
        width: 100%;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background-color: #1a202c;
    }
    .tech-card-thumb {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .tech-card:hover .tech-card-thumb {
        transform: scale(1.05);
    }
    .tech-codec-badge {
        position: absolute;
        top: 10px;
        left: 10px;
        background: rgba(14, 17, 23, 0.85);
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--cinema-cyan);
        font-size: 0.72rem;
        font-weight: 700;
        padding: 3px 8px;
        border-radius: 4px;
        letter-spacing: 0.5px;
    }
    .tech-duration-badge {
        position: absolute;
        bottom: 10px;
        right: 10px;
        background: rgba(0, 0, 0, 0.75);
        color: #fff;
        font-size: 0.72rem;
        padding: 2px 6px;
        border-radius: 4px;
    }
    .tech-card-body {
        padding: 1.25rem;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
    }
    .tech-card-title {
        font-size: 1.05rem;
        font-weight: 700;
        line-height: 1.45;
        color: var(--text-primary);
        margin-bottom: 0.6rem;
    }
    .tech-card-title a:hover {
        color: var(--brand-amber);
    }
    .tech-card-excerpt {
        font-size: 0.86rem;
        color: var(--text-secondary);
        line-height: 1.6;
        margin-bottom: 1.2rem;
        flex-grow: 1;
    }
    .tech-card-footer {
        padding-top: 0.8rem;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 0.78rem;
        color: var(--text-muted);
    }

    /* Standard Pagination */
    .custom-pagination {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        margin-top: 2rem;
    }
    .page-btn {
        width: 38px;
        height: 38px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        font-size: 0.88rem;
        transition: var(--transition-base);
    }
    .page-btn:hover, .page-btn.active {
        border-color: var(--brand-amber);
        color: var(--brand-amber);
        background-color: rgba(229, 169, 59, 0.08);
    }
    .page-btn.active {
        background-color: var(--brand-amber);
        color: #0b0e14;
        font-weight: 700;
    }

    /* Deep Dive Split Guide Box */
    .deep-dive-card {
        background: linear-gradient(135deg, #161b22 0%, #1a222d 100%);
        border: 1px solid var(--card-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
    }
    .deep-dive-thumb-box {
        width: 100%;
        height: 100%;
        min-height: 300px;
        position: relative;
    }
    .deep-dive-thumb {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .deep-dive-content {
        padding: 2.25rem;
    }
    .metric-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 4px 10px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 4px;
        font-size: 0.78rem;
        color: #d1d5db;
        margin-right: 8px;
        margin-bottom: 8px;
    }

    /* Tag Cloud Matrix */
    .cloud-tags-matrix {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .topic-cloud-pill {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        color: var(--text-secondary);
        padding: 8px 16px;
        border-radius: 50px;
        font-size: 0.86rem;
        transition: var(--transition-base);
    }
    .topic-cloud-pill:hover {
        border-color: var(--cinema-cyan);
        color: var(--cinema-cyan);
        background-color: var(--cinema-cyan-dim);
        transform: translateY(-2px);
    }
    .topic-cloud-pill span.count-num {
        font-size: 0.75rem;
        color: var(--text-muted);
        background: rgba(255, 255, 255, 0.05);
        padding: 2px 6px;
        border-radius: 10px;
    }

    /* Accordion FAQ in Dark Theme */
    .cinema-accordion .accordion-item {
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        margin-bottom: 12px;
        border-radius: var(--radius-sm) !important;
        overflow: hidden;
    }
    .cinema-accordion .accordion-button {
        background-color: var(--card-bg);
        color: var(--text-primary);
        font-weight: 600;
        font-size: 0.98rem;
        box-shadow: none;
        padding: 1.1rem 1.25rem;
    }
    .cinema-accordion .accordion-button:not(.collapsed) {
        color: var(--brand-amber);
        background-color: rgba(229, 169, 59, 0.06);
        border-bottom: 1px solid var(--card-border);
    }
    .cinema-accordion .accordion-button::after {
        filter: invert(1) brightness(0.7);
    }
    .cinema-accordion .accordion-button:not(.collapsed)::after {
        filter: invert(72%) sepia(50%) saturate(1000%) hue-rotate(5deg);
    }
    .cinema-accordion .accordion-body {
        color: var(--text-secondary);
        font-size: 0.92rem;
        line-height: 1.7;
        padding: 1.25rem;
    }

    /* Audit Standards Step Blocks */
    .audit-step-block {
        background-color: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: var(--radius-md);
        padding: 1.5rem;
        height: 100%;
        position: relative;
        transition: var(--transition-base);
    }
    .audit-step-block:hover {
        border-color: var(--brand-amber);
        transform: translateY(-3px);
    }
    .audit-step-num {
        font-size: 1.6rem;
        font-weight: 800;
        color: var(--brand-amber);
        font-family: 'DIN Alternate', 'Trebuchet MS', sans-serif;
        line-height: 1;
        margin-bottom: 0.75rem;
    }
    .audit-step-title {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 0.5rem;
    }
    .audit-step-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
        line-height: 1.6;
        margin-bottom: 0;
    }

    /* Footer Styles */
    .cinema-footer {
        background-color: #0b0e14;
        border-top: 1px solid var(--card-border);
        padding: 4rem 0 2rem;
    }
    .footer-title {
        font-size: 0.92rem;
        font-weight: 700;
        color: var(--text-primary);
        text-transform: uppercase;
        letter-spacing: 0.8px;
        margin-bottom: 1.2rem;
    }
    .footer-link {
        margin-bottom: 0.65rem;
    }
    .footer-link a {
        color: var(--text-secondary);
        font-size: 0.86rem;
    }
    .footer-link a:hover {
        color: var(--brand-amber);
    }
    .footer-bottom-line {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 1.75rem;
        margin-top: 3rem;
    }

    @media (max-width: 991.98px) {
        .category-h1 {
            font-size: 1.9rem;
        }
        .deep-dive-thumb-box {
            min-height: 220px;
        }
    }
    @media (max-width: 767.98px) {
        .category-h1 {
            font-size: 1.65rem;
        }
        .section-spacing {
            padding: 3rem 0;
        }
        .filter-row {
            flex-direction: column;
            gap: 8px;
        }
    }

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