/* roulang page: category2 */
:root {
      --bg-base: #0b0e14;
      --bg-surface: #121824;
      --bg-card: rgba(25, 34, 51, 0.85);
      --bg-card-hover: rgba(33, 46, 70, 0.95);
      --primary: #7952ff;
      --primary-glow: rgba(121, 82, 255, 0.35);
      --secondary: #00d4ff;
      --secondary-glow: rgba(0, 212, 255, 0.3);
      --accent-orange: #ff5722;
      --text-main: #e6edf3;
      --text-muted: #8b9bb4;
      --text-subtle: #576882;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 212, 255, 0.5);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 16px 20px;
      background: rgba(11, 14, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .deck-nav-wrapper {
      max-width: 1340px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .brand-logo-panel {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.25rem;
      box-shadow: 0 0 16px var(--primary-glow);
    }
    .brand-title {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      font-size: 0.7rem;
      background: rgba(121, 82, 255, 0.2);
      border: 1px solid var(--primary);
      color: var(--secondary);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }
    .deck-nav-pills {
      display: flex;
      align-items: center;
      background: rgba(18, 24, 36, 0.9);
      padding: 5px 8px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
      gap: 4px;
    }
    .nav-pill-link {
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .nav-pill-link:hover, .nav-pill-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
      border: 1px solid rgba(0, 212, 255, 0.3);
      box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
    }
    .nav-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-search-bar {
      position: relative;
      width: 220px;
    }
    .nav-search-input {
      width: 100%;
      height: 38px;
      background: rgba(25, 34, 51, 0.9);
      border: 1px solid var(--border-color);
      border-radius: 999px;
      padding: 0 16px 0 38px;
      color: #fff;
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search-input:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 10px var(--secondary-glow);
      width: 250px;
    }
    .nav-search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-subtle);
      font-size: 0.85rem;
    }
    .btn-glow-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), #5a2eed);
      color: #fff;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px var(--primary-glow);
      transition: var(--transition);
    }
    .btn-glow-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
      color: #fff;
    }
    .content-section {
      padding: 65px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-title-wrap {
      margin-bottom: 36px;
      text-align: left;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(121, 82, 255, 0.12);
      border: 1px solid rgba(121, 82, 255, 0.3);
      color: var(--secondary);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-heading {
      font-size: 2rem;
      letter-spacing: -0.5px;
      margin-bottom: 10px;
      font-weight: 700;
    }
    .section-desc {
      max-width: 820px;
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }
    /* Filter & Category Banner */
    .cat-hero-panel {
      background: linear-gradient(135deg, rgba(18, 24, 36, 0.95), rgba(11, 14, 20, 0.9)), url('/assets/images/757e80c6fbed86fc.jpg') center/cover no-repeat;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 46px 40px;
      position: relative;
      overflow: hidden;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
    }
    .cat-hero-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .cat-hero-summary {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 840px;
      margin-bottom: 30px;
      line-height: 1.75;
    }
    .filter-matrix-box {
      background: rgba(11, 14, 20, 0.75);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .filter-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-subtle);
      min-width: 60px;
    }
    .filter-tag {
      font-size: 0.84rem;
      padding: 4px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.06);
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-tag:hover, .filter-tag.active {
      color: #fff;
      background: var(--primary);
      border-color: var(--primary);
      box-shadow: 0 2px 8px var(--primary-glow);
    }
    /* Spotlights */
    .spotlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
    }
    .spotlight-card:hover {
      border-color: var(--border-focus);
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
    }
    .spotlight-thumb {
      position: relative;
      width: 100%;
      height: 220px;
      overflow: hidden;
    }
    .spotlight-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .spotlight-card:hover .spotlight-thumb img {
      transform: scale(1.05);
    }
    .spotlight-badge {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 999px;
      backdrop-filter: blur(6px);
    }
    .spotlight-body {
      padding: 20px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .spotlight-title {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .spotlight-meta {
      font-size: 0.84rem;
      color: var(--accent-orange);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .spotlight-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex: 1;
      margin-bottom: 16px;
    }
    /* Drama Poster Card */
    .drama-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
      position: relative;
    }
    .drama-card:hover {
      border-color: var(--secondary);
      transform: translateY(-5px);
      box-shadow: 0 10px 24px rgba(0, 212, 255, 0.15);
    }
    .drama-poster {
      position: relative;
      aspect-ratio: 2/3;
      overflow: hidden;
      background: #182232;
    }
    .drama-poster img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .drama-card:hover .drama-poster img {
      transform: scale(1.06);
    }
    .drama-rate {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--accent-orange);
      color: #ffb74d;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: var(--radius-sm);
    }
    .drama-ep-badge {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(121, 82, 255, 0.85);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: 4px;
    }
    .drama-info {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .drama-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .drama-tags {
      font-size: 0.8rem;
      color: var(--text-subtle);
      margin-bottom: 8px;
    }
    .drama-foot {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 10px;
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .action-load-more {
      text-align: center;
      margin-top: 40px;
    }
    .btn-load-outline {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 12px 34px;
      border-radius: 999px;
      border: 1px solid var(--secondary);
      background: rgba(0, 212, 255, 0.05);
      color: var(--secondary);
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-load-outline:hover {
      background: var(--secondary);
      color: #0b0e14;
      box-shadow: 0 0 20px var(--secondary-glow);
    }
    /* Ranking Dual Lists */
    .ranking-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      height: 100%;
    }
    .ranking-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--border-color);
    }
    .ranking-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .ranking-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 8px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .ranking-item:hover {
      background: rgba(255, 255, 255, 0.03);
    }
    .ranking-left {
      display: flex;
      align-items: center;
      gap: 14px;
      overflow: hidden;
    }
    .rank-idx {
      width: 26px;
      height: 26px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.85rem;
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-muted);
    }
    .rank-idx.top1 { background: #ff5722; color: #fff; }
    .rank-idx.top2 { background: #7952ff; color: #fff; }
    .rank-idx.top3 { background: #00d4ff; color: #0b0e14; }
    .rank-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-metric {
      font-size: 0.85rem;
      color: var(--secondary);
      font-weight: 600;
    }
    /* Technical cards */
    .spec-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
    }
    .spec-card:hover {
      border-color: var(--primary);
      transform: translateY(-3px);
    }
    .spec-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: rgba(121, 82, 255, 0.15);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 16px;
    }
    .spec-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .spec-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 0;
    }
    /* FAQ Accordion */
    .faq-block {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      margin-bottom: 16px;
    }
    .faq-q {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-a {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }
    /* Footer */
    .site-footer {
      background: #080a0f;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
    }
    .footer-brand-summary {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-top: 14px;
      max-width: 440px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }
    .footer-nav-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-nav-list li {
      margin-bottom: 10px;
    }
    .footer-nav-list a {
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-nav-list a:hover {
      color: var(--secondary);
      padding-left: 4px;
    }
    .footer-meta-bar {
      margin-top: 45px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
      color: var(--text-subtle);
    }
    @media (max-width: 1024px) {
      .deck-nav-pills { overflow-x: auto; max-width: 50%; }
      .nav-search-bar { display: none; }
    }
    @media (max-width: 768px) {
      .deck-nav-wrapper { flex-wrap: wrap; }
      .deck-nav-pills { order: 3; width: 100%; justify-content: flex-start; }
      .cat-hero-panel { padding: 30px 20px; }
      .cat-hero-h1 { font-size: 1.85rem; }
      .section-heading { font-size: 1.6rem; }
      .footer-meta-bar { flex-direction: column; align-items: flex-start; }
    }

/* roulang page: category1 */
:root {
        --bg-base: #0b0e14;
        --bg-surface: #121824;
        --bg-card: rgba(25, 34, 51, 0.85);
        --bg-card-hover: rgba(33, 46, 70, 0.95);
        --primary: #7952ff;
        --primary-glow: rgba(121, 82, 255, 0.35);
        --secondary: #00d4ff;
        --secondary-glow: rgba(0, 212, 255, 0.3);
        --accent-orange: #ff5722;
        --text-main: #e6edf3;
        --text-muted: #8b9bb4;
        --text-subtle: #576882;
        --border-color: rgba(255, 255, 255, 0.08);
        --border-focus: rgba(0, 212, 255, 0.5);
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
        margin: 0;
        padding: 0;
        background-color: var(--bg-base);
        color: var(--text-main);
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.75;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }
    a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }

    /* Card Deck Header Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        padding: 16px 20px;
        background: rgba(11, 14, 20, 0.88);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border-color);
    }
    .deck-nav-wrapper {
        max-width: 1340px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }
    .brand-logo-panel {
        display: flex;
        align-items: center;
        gap: 12px;
        text-decoration: none;
    }
    .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: var(--radius-md);
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 1.25rem;
        box-shadow: 0 0 16px var(--primary-glow);
    }
    .brand-title {
        font-size: 1.45rem;
        font-weight: 800;
        letter-spacing: 0.5px;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .brand-tag {
        font-size: 0.7rem;
        background: rgba(121, 82, 255, 0.2);
        border: 1px solid var(--primary);
        color: var(--secondary);
        padding: 2px 6px;
        border-radius: 4px;
        font-weight: 600;
    }
    .deck-nav-pills {
        display: flex;
        align-items: center;
        background: rgba(18, 24, 36, 0.9);
        padding: 5px 8px;
        border-radius: 999px;
        border: 1px solid var(--border-color);
        gap: 4px;
    }
    .nav-pill-link {
        padding: 8px 16px;
        border-radius: 999px;
        font-size: 0.92rem;
        font-weight: 500;
        color: var(--text-muted);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }
    .nav-pill-link:hover, .nav-pill-link.active {
        color: #fff;
        background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
        border: 1px solid rgba(0, 212, 255, 0.3);
        box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
    }
    .nav-action-group {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .nav-search-bar {
        position: relative;
        width: 220px;
    }
    .nav-search-input {
        width: 100%;
        height: 38px;
        background: rgba(25, 34, 51, 0.9);
        border: 1px solid var(--border-color);
        border-radius: 999px;
        padding: 0 16px 0 38px;
        color: #fff;
        font-size: 0.88rem;
        outline: none;
        transition: var(--transition);
    }
    .nav-search-input:focus {
        border-color: var(--secondary);
        box-shadow: 0 0 10px var(--secondary-glow);
        width: 250px;
    }
    .nav-search-icon {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-subtle);
        font-size: 0.85rem;
    }
    .btn-glow-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        background: linear-gradient(135deg, var(--primary), #5a2eed);
        color: #fff;
        padding: 9px 20px;
        font-size: 0.9rem;
        font-weight: 600;
        border-radius: 999px;
        border: none;
        cursor: pointer;
        box-shadow: 0 4px 15px var(--primary-glow);
        transition: var(--transition);
    }
    .btn-glow-primary:hover {
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
        color: #fff;
    }
    .mobile-menu-toggle {
        display: none;
        background: transparent;
        border: none;
        color: #fff;
        font-size: 1.4rem;
        cursor: pointer;
    }

    /* Section Foundations */
    .content-section {
        padding: 65px 0;
        position: relative;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-title-wrap {
        margin-bottom: 35px;
    }
    .section-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(121, 82, 255, 0.12);
        border: 1px solid rgba(121, 82, 255, 0.3);
        color: var(--secondary);
        font-size: 0.8rem;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: 999px;
        margin-bottom: 12px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    .section-heading {
        font-size: 2.1rem;
        font-weight: 700;
        letter-spacing: -0.5px;
        margin-bottom: 10px;
        color: #fff;
    }
    .section-desc {
        max-width: 820px;
        font-size: 1.02rem;
        color: var(--text-muted);
        line-height: 1.7;
    }

    /* Category Hero & Filter Board */
    .cat-hero-board {
        position: relative;
        border-radius: var(--radius-lg);
        background: radial-gradient(circle at 85% 25%, rgba(121, 82, 255, 0.18), transparent 50%),
                    radial-gradient(circle at 15% 75%, rgba(0, 212, 255, 0.12), transparent 45%),
                    var(--bg-surface);
        border: 1px solid var(--border-color);
        padding: 40px 36px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        margin-bottom: 30px;
    }
    .cat-h1 {
        font-size: 2.6rem;
        font-weight: 800;
        background: linear-gradient(135deg, #ffffff 40%, var(--secondary) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        margin-bottom: 14px;
        letter-spacing: -0.8px;
    }
    .cat-sub {
        font-size: 1.05rem;
        color: var(--text-muted);
        line-height: 1.75;
        margin-bottom: 28px;
        max-width: 840px;
    }
    .filter-panel {
        background: rgba(11, 14, 20, 0.75);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        display: flex;
        flex-direction: column;
        gap: 14px;
    }
    .filter-row {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
    }
    .filter-label {
        color: var(--text-subtle);
        font-size: 0.88rem;
        font-weight: 600;
        width: 72px;
        flex-shrink: 0;
    }
    .filter-item {
        font-size: 0.86rem;
        color: var(--text-muted);
        padding: 4px 12px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid transparent;
        transition: var(--transition);
        cursor: pointer;
    }
    .filter-item:hover, .filter-item.active {
        color: #fff;
        background: rgba(121, 82, 255, 0.25);
        border-color: rgba(121, 82, 255, 0.5);
    }
    .filter-item.active {
        color: var(--secondary);
        font-weight: 600;
    }

    /* Spot Stage 3-Card Layout */
    .spotlight-card {
        position: relative;
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-color);
        background: var(--bg-card);
        height: 280px;
        transition: var(--transition);
    }
    .spotlight-card:hover {
        transform: translateY(-5px);
        border-color: var(--border-focus);
        box-shadow: 0 12px 28px rgba(0, 212, 255, 0.15);
    }
    .spotlight-bg {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.6;
        transition: var(--transition);
    }
    .spotlight-card:hover .spotlight-bg {
        opacity: 0.75;
        transform: scale(1.05);
    }
    .spotlight-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(11, 14, 20, 0.2) 0%, rgba(11, 14, 20, 0.95) 100%);
        padding: 24px;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
    }
    .spotlight-tag {
        align-self: flex-start;
        padding: 3px 10px;
        font-size: 0.75rem;
        font-weight: 700;
        border-radius: 4px;
        margin-bottom: 8px;
        background: var(--accent-orange);
        color: #fff;
    }
    .spotlight-title {
        font-size: 1.35rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 6px;
    }
    .spotlight-meta {
        font-size: 0.85rem;
        color: var(--text-muted);
        display: flex;
        align-items: center;
        gap: 12px;
    }

    /* Movie Poster Cards */
    .movie-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    .movie-card:hover {
        transform: translateY(-6px);
        border-color: var(--border-focus);
        box-shadow: 0 14px 28px rgba(0, 0, 0, 0.6), 0 0 16px var(--secondary-glow);
    }
    .poster-box {
        position: relative;
        aspect-ratio: 2 / 3;
        overflow: hidden;
        background: #182232;
    }
    .poster-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.35s ease;
    }
    .movie-card:hover .poster-img {
        transform: scale(1.05);
    }
    .badge-resolution {
        position: absolute;
        top: 10px;
        right: 10px;
        background: rgba(11, 14, 20, 0.85);
        backdrop-filter: blur(6px);
        border: 1px solid var(--border-color);
        color: var(--secondary);
        font-size: 0.72rem;
        font-weight: 700;
        padding: 2px 8px;
        border-radius: 4px;
    }
    .badge-rate {
        position: absolute;
        bottom: 10px;
        left: 10px;
        background: rgba(255, 87, 34, 0.9);
        color: #fff;
        font-size: 0.75rem;
        font-weight: 700;
        padding: 2px 7px;
        border-radius: 4px;
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .movie-info {
        padding: 16px;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
        justify-content: space-between;
    }
    .movie-name {
        font-size: 1.05rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 6px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .movie-desc-meta {
        font-size: 0.82rem;
        color: var(--text-muted);
        display: flex;
        justify-content: space-between;
        margin-bottom: 10px;
    }
    .movie-btn-play {
        width: 100%;
        background: rgba(121, 82, 255, 0.18);
        border: 1px solid rgba(121, 82, 255, 0.4);
        color: var(--text-main);
        font-size: 0.85rem;
        font-weight: 600;
        padding: 7px 0;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 6px;
        transition: var(--transition);
    }
    .movie-card:hover .movie-btn-play {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        box-shadow: 0 4px 12px var(--primary-glow);
    }

    /* Leaderboard Dual-Card */
    .leaderboard-box {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 24px;
        height: 100%;
    }
    .leaderboard-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-bottom: 14px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        margin-bottom: 18px;
    }
    .leaderboard-title {
        font-size: 1.25rem;
        font-weight: 700;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .rank-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .rank-item {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 14px;
        background: rgba(25, 34, 51, 0.5);
        border-radius: var(--radius-sm);
        border: 1px solid transparent;
        transition: var(--transition);
    }
    .rank-item:hover {
        background: rgba(33, 46, 70, 0.85);
        border-color: rgba(0, 212, 255, 0.25);
    }
    .rank-num {
        width: 26px;
        height: 26px;
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.08);
        color: var(--text-muted);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.85rem;
        font-weight: 700;
        margin-right: 12px;
        flex-shrink: 0;
    }
    .rank-top1 { background: #ff5722; color: #fff; }
    .rank-top2 { background: #7952ff; color: #fff; }
    .rank-top3 { background: #00d4ff; color: #0b0e14; }
    .rank-name-wrap {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-grow: 1;
        overflow: hidden;
    }
    .rank-film-name {
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text-main);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .rank-hot-score {
        font-size: 0.85rem;
        font-weight: 700;
        color: var(--secondary);
        display: flex;
        align-items: center;
        gap: 4px;
        flex-shrink: 0;
    }

    /* Topic Collection Cards */
    .topic-col-card {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 24px;
        display: flex;
        gap: 20px;
        align-items: center;
        transition: var(--transition);
    }
    .topic-col-card:hover {
        border-color: var(--border-focus);
        transform: translateY(-4px);
    }
    .topic-thumb-box {
        width: 140px;
        height: 90px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        flex-shrink: 0;
    }
    .topic-thumb-box img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .topic-body {
        flex-grow: 1;
    }
    .topic-h4 {
        font-size: 1.15rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 6px;
    }
    .topic-desc {
        font-size: 0.86rem;
        color: var(--text-muted);
        line-height: 1.6;
        margin-bottom: 8px;
    }
    .topic-count {
        font-size: 0.78rem;
        color: var(--secondary);
        font-weight: 600;
    }

    /* Tech Specification Cards */
    .spec-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 26px;
        height: 100%;
        transition: var(--transition);
    }
    .spec-card:hover {
        border-color: var(--primary);
        box-shadow: 0 8px 24px rgba(121, 82, 255, 0.15);
    }
    .spec-icon {
        width: 48px;
        height: 48px;
        border-radius: var(--radius-sm);
        background: rgba(121, 82, 255, 0.15);
        color: var(--secondary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.35rem;
        margin-bottom: 18px;
    }
    .spec-h3 {
        font-size: 1.18rem;
        font-weight: 700;
        margin-bottom: 10px;
        color: #fff;
    }
    .spec-p {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.7;
        margin: 0;
    }

    /* Category FAQ */
    .faq-block {
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 22px 26px;
        margin-bottom: 16px;
    }
    .faq-q {
        font-size: 1.08rem;
        font-weight: 700;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 10px;
    }
    .faq-q i {
        color: var(--secondary);
    }
    .faq-a {
        font-size: 0.94rem;
        color: var(--text-muted);
        line-height: 1.75;
        margin: 0;
        padding-left: 28px;
    }

    /* Site Footer */
    .site-footer {
        background: #080a0f;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 60px 20px 30px;
    }
    .footer-container {
        max-width: 1340px;
        margin: 0 auto;
    }
    .footer-desc-text {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.75;
        margin-top: 14px;
        max-width: 420px;
    }
    .footer-col-title {
        font-size: 1.05rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 20px;
        position: relative;
        padding-bottom: 8px;
    }
    .footer-col-title::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 28px;
        height: 2px;
        background: var(--secondary);
    }
    .footer-link-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-link-list li a {
        color: var(--text-muted);
        font-size: 0.88rem;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .footer-link-list li a:hover {
        color: var(--secondary);
        transform: translateX(3px);
    }
    .footer-bottom-bar {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        margin-top: 45px;
        padding-top: 25px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 14px;
        font-size: 0.85rem;
        color: var(--text-subtle);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .deck-nav-pills { display: none; }
        .mobile-menu-toggle { display: block; }
        .nav-search-bar { display: none; }
    }
    @media (max-width: 768px) {
        .cat-h1 { font-size: 1.95rem; }
        .cat-hero-board { padding: 26px 20px; }
        .section-heading { font-size: 1.65rem; }
        .topic-col-card { flex-direction: column; align-items: flex-start; }
        .topic-thumb-box { width: 100%; height: 160px; }
    }

/* roulang page: category3 */
:root {
      --bg-base: #0b0e14;
      --bg-surface: #121824;
      --bg-card: rgba(25, 34, 51, 0.85);
      --bg-card-hover: rgba(33, 46, 70, 0.95);
      --primary: #7952ff;
      --primary-glow: rgba(121, 82, 255, 0.35);
      --secondary: #00d4ff;
      --secondary-glow: rgba(0, 212, 255, 0.3);
      --accent-orange: #ff5722;
      --text-main: #e6edf3;
      --text-muted: #8b9bb4;
      --text-subtle: #576882;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 212, 255, 0.5);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }

    /* Card Deck Header Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 16px 20px;
      background: rgba(11, 14, 20, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .deck-nav-wrapper {
      max-width: 1340px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .brand-logo-panel {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
      flex-shrink: 0;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.25rem;
      box-shadow: 0 0 16px var(--primary-glow);
    }
    .brand-title {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      font-size: 0.7rem;
      background: rgba(121, 82, 255, 0.2);
      border: 1px solid var(--primary);
      color: var(--secondary);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }
    .deck-nav-pills {
      display: flex;
      align-items: center;
      background: rgba(18, 24, 36, 0.9);
      padding: 5px 8px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
      gap: 4px;
    }
    .nav-pill-link {
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      white-space: nowrap;
    }
    .nav-pill-link:hover, .nav-pill-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
      border: 1px solid rgba(0, 212, 255, 0.3);
      box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
    }
    .nav-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .nav-search-bar {
      position: relative;
      width: 200px;
    }
    .nav-search-input {
      width: 100%;
      height: 38px;
      background: rgba(25, 34, 51, 0.9);
      border: 1px solid var(--border-color);
      border-radius: 999px;
      padding: 0 16px 0 38px;
      color: #fff;
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search-input:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 10px var(--secondary-glow);
      width: 230px;
    }
    .nav-search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-subtle);
      font-size: 0.85rem;
    }
    .btn-glow-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), #5a2eed);
      color: #fff;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px var(--primary-glow);
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-glow-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
      color: #fff;
    }

    /* Shared Sections */
    .content-section {
      padding: 65px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .section-title-wrap {
      margin-bottom: 36px;
      text-align: left;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(121, 82, 255, 0.12);
      border: 1px solid rgba(121, 82, 255, 0.3);
      color: var(--secondary);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-heading {
      font-size: 1.95rem;
      letter-spacing: -0.5px;
      margin-bottom: 10px;
      color: #fff;
      font-weight: 700;
    }
    .section-desc {
      max-width: 820px;
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* Section 1: Anime Category Header & Filter Console */
    .anime-hero-banner {
      background: linear-gradient(180deg, rgba(18, 24, 36, 0.75) 0%, var(--bg-base) 100%),
                  url('/assets/images/bfc0e7b604e17f6e.jpg') center/cover no-repeat;
      padding: 60px 0 40px;
      position: relative;
      border-bottom: 1px solid var(--border-color);
    }
    .anime-hero-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 15px 35px rgba(0,0,0,0.4);
      backdrop-filter: blur(10px);
    }
    .anime-h1 {
      font-size: 2.45rem;
      font-weight: 800;
      background: linear-gradient(135deg, #ffffff 30%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 14px;
      line-height: 1.25;
    }
    .anime-stat-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin: 20px 0 30px;
      padding-bottom: 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .anime-stat-item {
      display: flex;
      flex-direction: column;
    }
    .anime-stat-num {
      font-size: 1.55rem;
      font-weight: 700;
      color: var(--secondary);
      line-height: 1.2;
    }
    .anime-stat-lbl {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* Filter Matrix */
    .filter-matrix-box {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }
    .filter-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-muted);
      width: 70px;
      flex-shrink: 0;
    }
    .filter-chips {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .filter-chip {
      font-size: 0.84rem;
      padding: 4px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-chip:hover, .filter-chip.active {
      background: rgba(121, 82, 255, 0.25);
      border-color: var(--primary);
      color: #fff;
    }

    /* Section 2: Anime Spotlight Showcases */
    .spotlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .spotlight-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: 0 12px 28px rgba(121, 82, 255, 0.2);
    }
    .spotlight-thumb {
      height: 220px;
      width: 100%;
      object-fit: cover;
      position: relative;
    }
    .spotlight-thumb-wrap {
      position: relative;
      overflow: hidden;
    }
    .spotlight-badge {
      position: absolute;
      top: 12px;
      right: 12px;
      background: var(--accent-orange);
      color: #fff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      box-shadow: 0 2px 6px rgba(0,0,0,0.4);
    }
    .spotlight-content {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .spotlight-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .spotlight-meta {
      font-size: 0.82rem;
      color: var(--text-subtle);
      margin-bottom: 12px;
      display: flex;
      gap: 12px;
    }
    .spotlight-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    /* Section 3: Core Anime Grid */
    .anime-poster-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .anime-poster-card:hover {
      transform: translateY(-4px) scale(1.02);
      border-color: var(--secondary);
      box-shadow: 0 12px 24px rgba(0, 212, 255, 0.2);
    }
    .poster-wrap {
      position: relative;
      aspect-ratio: 2 / 3;
      overflow: hidden;
      background: #182030;
    }
    .poster-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .anime-poster-card:hover .poster-img {
      transform: scale(1.06);
    }
    .poster-tag-top {
      position: absolute;
      top: 8px;
      right: 8px;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      font-size: 0.72rem;
      font-weight: 600;
      padding: 2px 7px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .poster-fps-badge {
      position: absolute;
      top: 8px;
      left: 8px;
      background: rgba(121, 82, 255, 0.85);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 7px;
      border-radius: 4px;
    }
    .poster-info {
      padding: 14px 12px;
      display: flex;
      flex-direction: column;
    }
    .poster-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .poster-sub {
      font-size: 0.78rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .poster-score {
      color: #ffb800;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 3px;
    }

    /* Load More Action */
    .load-more-wrap {
      text-align: center;
      margin-top: 20px;
    }
    .btn-secondary-deck {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 32px;
      border-radius: 999px;
      background: rgba(25, 34, 51, 0.9);
      border: 1px solid var(--border-color);
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.95rem;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-secondary-deck:hover {
      background: rgba(33, 46, 70, 1);
      border-color: var(--secondary);
      color: var(--secondary);
      box-shadow: 0 4px 18px var(--secondary-glow);
    }

    /* Section 4: Anime Ranking Board */
    .rank-board-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      height: 100%;
    }
    .rank-board-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 16px;
      margin-bottom: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .rank-board-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .rank-list {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .rank-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 0.92rem;
    }
    .rank-item:last-child {
      border-bottom: none;
    }
    .rank-left {
      display: flex;
      align-items: center;
      gap: 12px;
      overflow: hidden;
    }
    .rank-num {
      width: 24px;
      height: 24px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-muted);
      font-size: 0.8rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .rank-num.top-1 { background: var(--accent-orange); color: #fff; }
    .rank-num.top-2 { background: var(--primary); color: #fff; }
    .rank-num.top-3 { background: var(--secondary); color: #0b0e14; }
    .rank-name {
      color: var(--text-main);
      font-weight: 500;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-score-val {
      color: #ffb800;
      font-size: 0.85rem;
      font-weight: 700;
      flex-shrink: 0;
    }

    /* Section 5: Anime Collections & Topics */
    .topic-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .topic-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
      box-shadow: 0 10px 24px rgba(121, 82, 255, 0.2);
    }
    .topic-img-wrap {
      height: 170px;
      overflow: hidden;
    }
    .topic-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .topic-card:hover .topic-img {
      transform: scale(1.05);
    }
    .topic-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .topic-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .topic-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      flex-grow: 1;
    }
    .topic-meta-tag {
      font-size: 0.78rem;
      color: var(--secondary);
      font-weight: 600;
    }

    /* Section 6: Playback Tech & Specs */
    .tech-spec-grid {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
    }
    .tech-box {
      background: rgba(11, 14, 20, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.05);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
    }
    .tech-box:hover {
      border-color: var(--secondary);
      background: rgba(25, 34, 51, 0.6);
    }
    .tech-icon {
      font-size: 2rem;
      color: var(--secondary);
      margin-bottom: 16px;
    }
    .tech-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }
    .tech-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 0;
    }

    /* Section 7: FAQ Accordion */
    .faq-accordion-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-accordion-item:hover {
      border-color: rgba(121, 82, 255, 0.4);
    }
    .faq-question-btn {
      width: 100%;
      padding: 18px 22px;
      background: transparent;
      border: none;
      color: #fff;
      font-size: 1.05rem;
      font-weight: 600;
      text-align: left;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-answer-panel {
      padding: 0 22px 18px;
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      display: block;
    }

    /* Site Footer */
    .site-footer {
      background: #080a0f;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-subtle);
      font-size: 0.88rem;
    }
    .footer-brand-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .footer-heading {
      font-size: 0.95rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .footer-links-list a:hover {
      color: var(--secondary);
    }
    .footer-bottom-bar {
      margin-top: 40px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.8rem;
    }

    /* Responsive */
    @media screen and (max-width: 1024px) {
      .deck-nav-pills {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .nav-search-bar {
        width: 160px;
      }
      .anime-h1 {
        font-size: 2rem;
      }
    }
    @media screen and (max-width: 640px) {
      .site-header {
        padding: 12px 16px;
      }
      .nav-action-group {
        display: none;
      }
      .anime-hero-card {
        padding: 24px 18px;
      }
      .anime-h1 {
        font-size: 1.65rem;
      }
      .section-heading {
        font-size: 1.45rem;
      }
      .footer-bottom-bar {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: category4 */
:root {
            --bg-base: #0b0e14;
            --bg-surface: #121824;
            --bg-card: rgba(25, 34, 51, 0.85);
            --bg-card-hover: rgba(33, 46, 70, 0.95);
            --primary: #7952ff;
            --primary-glow: rgba(121, 82, 255, 0.35);
            --secondary: #00d4ff;
            --secondary-glow: rgba(0, 212, 255, 0.3);
            --accent-orange: #ff5722;
            --text-main: #e6edf3;
            --text-muted: #8b9bb4;
            --text-subtle: #576882;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-focus: rgba(0, 212, 255, 0.5);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg-base);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        img { max-width: 100%; height: auto; display: block; }
        
        /* Card Deck Header Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 20px;
            background: rgba(11, 14, 20, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }
        .deck-nav-wrapper {
            max-width: 1340px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .brand-logo-panel {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.25rem;
            box-shadow: 0 0 16px var(--primary-glow);
        }
        .brand-title {
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .brand-tag {
            font-size: 0.7rem;
            background: rgba(121, 82, 255, 0.2);
            border: 1px solid var(--primary);
            color: var(--secondary);
            padding: 2px 6px;
            border-radius: 4px;
            font-weight: 600;
        }
        .deck-nav-pills {
            display: flex;
            align-items: center;
            background: rgba(18, 24, 36, 0.9);
            padding: 5px 8px;
            border-radius: 999px;
            border: 1px solid var(--border-color);
            gap: 4px;
        }
        .nav-pill-link {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .nav-pill-link:hover, .nav-pill-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
            border: 1px solid rgba(0, 212, 255, 0.3);
            box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
        }
        .nav-action-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search-bar {
            position: relative;
            width: 210px;
        }
        .nav-search-input {
            width: 100%;
            height: 38px;
            background: rgba(25, 34, 51, 0.9);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 0 16px 0 38px;
            color: #fff;
            font-size: 0.88rem;
            outline: none;
            transition: var(--transition);
            margin-bottom: 0;
        }
        .nav-search-input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 10px var(--secondary-glow);
            width: 230px;
        }
        .nav-search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-subtle);
            font-size: 0.85rem;
        }
        .btn-glow-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), #5a2eed);
            color: #fff;
            padding: 9px 20px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px var(--primary-glow);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-glow-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
            color: #fff;
        }
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.4rem;
            cursor: pointer;
        }

        /* Section Global */
        .content-section {
            padding: 65px 0;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .section-title-wrap {
            margin-bottom: 36px;
            text-align: left;
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(121, 82, 255, 0.12);
            border: 1px solid rgba(121, 82, 255, 0.3);
            color: var(--secondary);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }
        .section-heading {
            font-size: 2rem;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            font-weight: 700;
            color: #fff;
        }
        .section-desc {
            max-width: 800px;
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 板块 1：分类独立看板头图 & 筛选面板 */
        .cat-hero-panel {
            background: linear-gradient(180deg, rgba(18, 24, 36, 0.85) 0%, rgba(11, 14, 20, 0.95) 100%),
                        url('/assets/images/1cbfd52f37111bb8.jpg') center/cover no-repeat;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            padding: 42px 36px;
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
            position: relative;
            overflow: hidden;
        }
        .cat-hero-panel::before {
            content: '';
            position: absolute;
            top: 0; right: 0; width: 450px; height: 100%;
            background: radial-gradient(circle at center, rgba(121, 82, 255, 0.18), transparent 70%);
            pointer-events: none;
        }
        .cat-h1 {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
            background: linear-gradient(135deg, #ffffff 40%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .cat-subline {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 820px;
            margin-bottom: 28px;
        }
        .filter-console {
            background: rgba(11, 14, 20, 0.75);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .filter-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .filter-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-subtle);
            min-width: 68px;
        }
        .filter-chip {
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-chip:hover, .filter-chip.active {
            color: #fff;
            background: rgba(121, 82, 255, 0.25);
            border-color: rgba(121, 82, 255, 0.5);
            box-shadow: 0 0 10px rgba(121, 82, 255, 0.2);
        }

        /* 板块 2：主打推荐焦点展台 (3连幅) */
        .spotlight-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
        }
        .spotlight-card:hover {
            transform: translateY(-5px);
            border-color: rgba(0, 212, 255, 0.4);
            box-shadow: 0 12px 28px rgba(0, 212, 255, 0.15);
        }
        .spotlight-thumb-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #182234;
        }
        .spotlight-thumb-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .spotlight-card:hover .spotlight-thumb-wrap img {
            transform: scale(1.05);
        }
        .spotlight-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(255, 87, 34, 0.9);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
        }
        .spotlight-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .spotlight-meta {
            font-size: 0.8rem;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .spotlight-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .spotlight-brief {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .spotlight-action {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 14px;
        }
        .tag-pill {
            font-size: 0.75rem;
            background: rgba(255, 255, 255, 0.05);
            padding: 3px 8px;
            border-radius: 4px;
            color: var(--text-subtle);
        }

        /* 板块 3：分类核心片库列表主体 (4列海报) */
        .poster-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
            margin-bottom: 24px;
        }
        .poster-card:hover {
            transform: translateY(-4px) scale(1.02);
            border-color: rgba(121, 82, 255, 0.5);
            box-shadow: 0 10px 24px rgba(121, 82, 255, 0.2);
        }
        .poster-media {
            position: relative;
            aspect-ratio: 2/3;
            overflow: hidden;
            background: #151e2e;
        }
        .poster-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .poster-card:hover .poster-media img {
            transform: scale(1.06);
        }
        .poster-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(18, 24, 36, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--secondary);
            font-size: 0.75rem;
            padding: 2px 7px;
            border-radius: 4px;
            backdrop-filter: blur(4px);
        }
        .poster-rate {
            position: absolute;
            bottom: 10px;
            right: 10px;
            background: rgba(0, 0, 0, 0.75);
            color: #ffb400;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 2px 8px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .poster-info {
            padding: 16px;
        }
        .poster-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .poster-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 0;
        }
        .load-more-wrap {
            text-align: center;
            margin-top: 20px;
        }
        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(25, 34, 51, 0.8);
            border: 1px solid var(--border-color);
            color: var(--text-main);
            padding: 12px 34px;
            border-radius: 999px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .btn-load-more:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(33, 46, 70, 0.9);
            box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
        }

        /* 板块 4：分类高分榜单看板 (双列对比) */
        .rank-board-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            height: 100%;
        }
        .rank-board-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 22px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding-bottom: 14px;
        }
        .rank-board-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rank-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.02);
            transition: var(--transition);
        }
        .rank-item:hover {
            background: rgba(255, 255, 255, 0.05);
            transform: translateX(4px);
        }
        .rank-left {
            display: flex;
            align-items: center;
            gap: 14px;
            overflow: hidden;
        }
        .rank-num {
            width: 26px;
            height: 26px;
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 800;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .rank-num.top-1 { background: linear-gradient(135deg, #ff5722, #ff9800); }
        .rank-num.top-2 { background: linear-gradient(135deg, #7952ff, #9c27b0); }
        .rank-num.top-3 { background: linear-gradient(135deg, #00d4ff, #00bcd4); }
        .rank-name {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .rank-heat {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-family: monospace;
        }

        /* 板块 5：该分类深度专题栏目 */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            border-color: rgba(121, 82, 255, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 10px 25px rgba(121, 82, 255, 0.18);
        }
        .topic-cover {
            height: 160px;
            overflow: hidden;
            position: relative;
        }
        .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-cover img {
            transform: scale(1.08);
        }
        .topic-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .topic-tag {
            font-size: 0.75rem;
            color: var(--secondary);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .topic-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .topic-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
            flex-grow: 1;
        }
        .topic-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.88rem;
            color: var(--secondary);
            font-weight: 600;
        }

        /* 板块 6：分类观影技术提示与规范 */
        .spec-card {
            background: rgba(18, 24, 36, 0.7);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            height: 100%;
            transition: var(--transition);
        }
        .spec-card:hover {
            border-color: var(--secondary);
            background: rgba(25, 34, 51, 0.85);
            box-shadow: 0 8px 24px rgba(0, 212, 255, 0.12);
        }
        .spec-icon-box {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(121, 82, 255, 0.25), rgba(0, 212, 255, 0.25));
            border: 1px solid rgba(0, 212, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.25rem;
            margin-bottom: 16px;
        }
        .spec-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .spec-detail {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* 板块 7：分类专属常见问题 (FAQ) */
        .faq-accordion-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .faq-accordion-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .faq-accordion-item:last-child {
            border-bottom: none;
        }
        .faq-accordion-title {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
        }
        .faq-accordion-title:hover {
            color: var(--secondary);
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-accordion-title i {
            transition: transform 0.3s ease;
            color: var(--text-subtle);
        }
        .faq-accordion-item.active .faq-accordion-title i {
            transform: rotate(180deg);
            color: var(--secondary);
        }
        .faq-accordion-content {
            padding: 0 24px 20px 24px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-accordion-item.active .faq-accordion-content {
            display: block;
        }

        /* Footer */
        .site-footer {
            background: #080a0f;
            border-top: 1px solid var(--border-color);
            padding: 55px 0 25px;
            color: var(--text-muted);
        }
        .footer-brand-wrap {
            margin-bottom: 24px;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-subtle);
            max-width: 480px;
            margin-top: 12px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-links-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links-list a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-links-list a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-bottom-bar {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            font-size: 0.85rem;
            color: var(--text-subtle);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .deck-nav-pills { display: none; }
            .mobile-menu-toggle { display: block; }
            .nav-search-bar { display: none; }
            .cat-hero-panel { padding: 32px 24px; }
            .cat-h1 { font-size: 2.1rem; }
        }
        @media (max-width: 768px) {
            .content-section { padding: 45px 0; }
            .section-heading { font-size: 1.65rem; }
            .cat-h1 { font-size: 1.75rem; }
            .rank-board-card { margin-bottom: 24px; }
            .footer-bottom-bar { flex-direction: column; text-align: center; }
        }

/* roulang page: category5 */
:root {
      --bg-base: #0b0e14;
      --bg-surface: #121824;
      --bg-card: rgba(25, 34, 51, 0.85);
      --bg-card-hover: rgba(33, 46, 70, 0.95);
      --primary: #7952ff;
      --primary-glow: rgba(121, 82, 255, 0.35);
      --secondary: #00d4ff;
      --secondary-glow: rgba(0, 212, 255, 0.3);
      --accent-orange: #ff5722;
      --text-main: #e6edf3;
      --text-muted: #8b9bb4;
      --text-subtle: #576882;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 212, 255, 0.5);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }
    
    /* Card Deck Header Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 16px 20px;
      background: rgba(11, 14, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .deck-nav-wrapper {
      max-width: 1340px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .brand-logo-panel {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.25rem;
      box-shadow: 0 0 16px var(--primary-glow);
    }
    .brand-title {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      font-size: 0.7rem;
      background: rgba(121, 82, 255, 0.2);
      border: 1px solid var(--primary);
      color: var(--secondary);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }
    .deck-nav-pills {
      display: flex;
      align-items: center;
      background: rgba(18, 24, 36, 0.9);
      padding: 5px 8px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
      gap: 4px;
    }
    .nav-pill-link {
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .nav-pill-link:hover, .nav-pill-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
      border: 1px solid rgba(0, 212, 255, 0.3);
      box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
    }
    .nav-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-search-bar {
      position: relative;
      width: 220px;
    }
    .nav-search-input {
      width: 100%;
      height: 38px;
      background: rgba(25, 34, 51, 0.9);
      border: 1px solid var(--border-color);
      border-radius: 999px;
      padding: 0 16px 0 38px;
      color: #fff;
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search-input:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 10px var(--secondary-glow);
      width: 250px;
    }
    .nav-search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-subtle);
      font-size: 0.85rem;
    }
    .btn-glow-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), #5a2eed);
      color: #fff;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px var(--primary-glow);
      transition: var(--transition);
    }
    .btn-glow-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
      color: #fff;
    }
    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: #fff;
      font-size: 1.4rem;
      cursor: pointer;
    }
    
    /* Category Container & Section Common */
    .category-container {
      max-width: 1340px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .content-section {
      padding: 65px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .section-title-wrap {
      margin-bottom: 36px;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(121, 82, 255, 0.12);
      border: 1px solid rgba(121, 82, 255, 0.3);
      color: var(--secondary);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-heading {
      font-size: 2.1rem;
      font-weight: 700;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .section-desc {
      max-width: 820px;
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 1: Classification Banner & Filter */
    .cat-head-hero {
      position: relative;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(18, 24, 36, 0.85) 0%, rgba(11, 14, 20, 0.98) 100%),
                  url('/assets/images/63cbfd458143f28e.jpg') center/cover no-repeat;
      border: 1px solid var(--border-color);
      padding: 48px 40px;
      margin-top: 30px;
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
    }
    .cat-h1 {
      font-size: 2.6rem;
      font-weight: 800;
      background: linear-gradient(135deg, #ffffff 30%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .cat-summary {
      font-size: 1.06rem;
      color: var(--text-muted);
      max-width: 840px;
      line-height: 1.8;
      margin-bottom: 32px;
    }
    .filter-panel-box {
      background: rgba(11, 14, 20, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .filter-label {
      font-size: 0.88rem;
      color: var(--text-subtle);
      font-weight: 600;
      width: 76px;
      flex-shrink: 0;
    }
    .filter-pills {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-pill {
      font-size: 0.85rem;
      padding: 4px 14px;
      border-radius: 999px;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
    }
    .filter-pill:hover, .filter-pill.active {
      color: #fff;
      background: rgba(121, 82, 255, 0.25);
      border-color: var(--primary);
    }

    /* Section 2: Spotlight Trio Showcase */
    .spotlight-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
      box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
    }
    .spotlight-card:hover {
      transform: translateY(-4px);
      border-color: rgba(0, 212, 255, 0.4);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 18px var(--secondary-glow);
    }
    .spotlight-img-wrap {
      position: relative;
      width: 100%;
      height: 220px;
      overflow: hidden;
    }
    .spotlight-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .spotlight-card:hover .spotlight-img {
      transform: scale(1.05);
    }
    .spotlight-badge {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(0, 0, 0, 0.75);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      font-size: 0.75rem;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 999px;
      backdrop-filter: blur(6px);
    }
    .spotlight-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .spotlight-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.82rem;
      color: var(--text-subtle);
      margin-bottom: 10px;
    }
    .spotlight-score {
      color: #ffb703;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .spotlight-title {
      font-size: 1.22rem;
      font-weight: 700;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .spotlight-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .spotlight-btn-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .btn-watch-play {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--secondary);
      background: rgba(0, 212, 255, 0.1);
      border: 1px solid rgba(0, 212, 255, 0.25);
      padding: 6px 14px;
      border-radius: var(--radius-sm);
    }
    .btn-watch-play:hover {
      background: var(--secondary);
      color: #0b0e14;
    }

    /* Section 3: Documentary Poster Grid (2:3 aspect ratio) */
    .doc-poster-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .doc-poster-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      position: relative;
    }
    .doc-poster-card:hover {
      transform: translateY(-5px) scale(1.02);
      border-color: rgba(121, 82, 255, 0.5);
      box-shadow: 0 16px 30px rgba(0, 0, 0, 0.6), 0 0 15px var(--primary-glow);
    }
    .poster-img-container {
      position: relative;
      width: 100%;
      padding-top: 140%; /* ~2:3 Aspect ratio */
      overflow: hidden;
      background: #172030;
    }
    .poster-real-img {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .doc-poster-card:hover .poster-real-img {
      transform: scale(1.06);
    }
    .poster-res-tag {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(11, 14, 20, 0.8);
      border: 1px solid var(--primary);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 4px;
      backdrop-filter: blur(4px);
    }
    .poster-audio-tag {
      position: absolute;
      bottom: 10px;
      left: 10px;
      background: rgba(0, 0, 0, 0.75);
      color: var(--secondary);
      font-size: 0.72rem;
      padding: 2px 7px;
      border-radius: 4px;
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .poster-info-wrap {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .poster-name {
      font-size: 1.06rem;
      font-weight: 700;
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .poster-sub-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.8rem;
      color: var(--text-subtle);
      margin-bottom: 10px;
    }
    .poster-score-num {
      color: #ffb703;
      font-weight: 700;
    }
    .poster-tags-row {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
    }
    .mini-pill {
      font-size: 0.7rem;
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-muted);
      padding: 2px 8px;
      border-radius: 4px;
    }
    .load-more-center {
      text-align: center;
      margin-top: 45px;
    }
    .btn-load-more {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(25, 34, 51, 0.95);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--text-main);
      padding: 12px 36px;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-load-more:hover {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
      box-shadow: 0 0 20px var(--primary-glow);
    }

    /* Section 4: Dual Leaderboard Showcase */
    .leaderboard-board {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
    }
    .rank-table-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 22px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .rank-board-title {
      font-size: 1.25rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .rank-list-items {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .rank-row-item {
      display: flex;
      align-items: center; justify-content: space-between;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      background: rgba(11, 14, 20, 0.45);
      border: 1px solid rgba(255, 255, 255, 0.03);
      transition: var(--transition);
    }
    .rank-row-item:hover {
      background: rgba(33, 46, 70, 0.7);
      border-color: rgba(0, 212, 255, 0.25);
    }
    .rank-left-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      overflow: hidden;
    }
    .rank-num-badge {
      width: 26px;
      height: 26px;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      font-weight: 800;
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-muted);
      flex-shrink: 0;
    }
    .rank-num-top1 {
      background: #ff5722;
      color: #fff;
      box-shadow: 0 0 10px rgba(255, 87, 34, 0.5);
    }
    .rank-num-top2 {
      background: #7952ff;
      color: #fff;
    }
    .rank-num-top3 {
      background: #00d4ff;
      color: #0b0e14;
    }
    .rank-title-text {
      font-size: 0.95rem;
      font-weight: 600;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-val-pill {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--secondary);
      flex-shrink: 0;
      margin-left: 12px;
    }

    /* Section 5: Thematic Collections */
    .theme-col-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      height: 100%;
      transition: var(--transition);
    }
    .theme-col-card:hover {
      transform: translateY(-4px);
      border-color: rgba(121, 82, 255, 0.4);
      box-shadow: 0 14px 28px rgba(0, 0, 0, 0.4);
    }
    .theme-banner-img {
      width: 100%;
      height: 160px;
      object-fit: cover;
    }
    .theme-info-box {
      padding: 22px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .theme-h3 {
      font-size: 1.18rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .theme-desc-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .theme-bottom-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      font-size: 0.82rem;
      color: var(--text-subtle);
    }

    /* Section 6: Tech Guidelines */
    .tech-guide-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      height: 100%;
      transition: var(--transition);
    }
    .tech-guide-panel:hover {
      border-color: var(--secondary);
      box-shadow: 0 0 20px var(--secondary-glow);
    }
    .tech-guide-icon {
      width: 50px;
      height: 50px;
      border-radius: var(--radius-sm);
      background: rgba(0, 212, 255, 0.12);
      border: 1px solid rgba(0, 212, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary);
      font-size: 1.4rem;
      margin-bottom: 18px;
    }
    .tech-guide-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .tech-guide-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 7: Specific FAQ Accordion */
    .faq-accordion-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-accordion-item:hover {
      border-color: rgba(255, 255, 255, 0.15);
    }
    .faq-accordion-title {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-toggle-icon {
      color: var(--secondary);
      transition: transform 0.28s ease;
    }
    .faq-accordion-content {
      padding: 0 24px 22px 24px;
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.75;
      display: none;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }
    .faq-accordion-item.open .faq-accordion-content {
      display: block;
    }
    .faq-accordion-item.open .faq-toggle-icon {
      transform: rotate(180deg);
    }

    /* Footer Styles */
    .site-footer {
      background: #07090e;
      border-top: 1px solid var(--border-color);
      padding: 65px 20px 35px;
      color: var(--text-muted);
    }
    .footer-inner-box {
      max-width: 1340px;
      margin: 0 auto;
    }
    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-brief {
      font-size: 0.9rem;
      line-height: 1.75;
      color: var(--text-subtle);
      max-width: 380px;
      margin-bottom: 20px;
    }
    .footer-links-title {
      font-size: 1.02rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .footer-links-list a:hover {
      color: var(--secondary);
    }
    .footer-bottom-bar {
      margin-top: 50px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.84rem;
      color: var(--text-subtle);
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .doc-poster-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .deck-nav-pills {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .mobile-drawer {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(11, 14, 20, 0.98);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        z-index: 999;
        backdrop-filter: blur(20px);
      }
      .mobile-drawer.active {
        display: flex;
        flex-direction: column;
        gap: 10px;
      }
      .mobile-drawer .nav-pill-link {
        width: 100%;
        justify-content: flex-start;
      }
    }
    @media (max-width: 768px) {
      .doc-poster-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cat-h1 {
        font-size: 1.95rem;
      }
      .cat-head-hero {
        padding: 30px 20px;
      }
      .filter-panel-box {
        padding: 16px;
      }
      .nav-search-bar {
        display: none;
      }
      .section-heading {
        font-size: 1.65rem;
      }
    }
    @media (max-width: 520px) {
      .doc-poster-grid {
        grid-template-columns: 1fr;
      }
      .cat-h1 {
        font-size: 1.6rem;
      }
      .brand-title {
        font-size: 1.25rem;
      }
    }

/* roulang page: index */
:root {
      --bg-base: #0b0e14;
      --bg-surface: #121824;
      --bg-card: rgba(25, 34, 51, 0.85);
      --bg-card-hover: rgba(33, 46, 70, 0.95);
      --primary: #7952ff;
      --primary-glow: rgba(121, 82, 255, 0.35);
      --secondary: #00d4ff;
      --secondary-glow: rgba(0, 212, 255, 0.3);
      --accent-orange: #ff5722;
      --text-main: #e6edf3;
      --text-muted: #8b9bb4;
      --text-subtle: #576882;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-focus: rgba(0, 212, 255, 0.5);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--bg-base);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a { color: var(--text-main); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--secondary); }
    img { max-width: 100%; height: auto; display: block; }
    h1, h2, h3, h4, h5 { color: #ffffff; font-weight: 700; margin-top: 0; line-height: 1.35; }
    p { margin-bottom: 1.15rem; color: var(--text-muted); }

    /* Card Deck Header Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 16px 20px;
      background: rgba(11, 14, 20, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-color);
    }
    .deck-nav-wrapper {
      max-width: 1340px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .brand-logo-panel {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.25rem;
      box-shadow: 0 0 16px var(--primary-glow);
    }
    .brand-title {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .brand-tag {
      font-size: 0.7rem;
      background: rgba(121, 82, 255, 0.2);
      border: 1px solid var(--primary);
      color: var(--secondary);
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 600;
    }

    .deck-nav-pills {
      display: flex;
      align-items: center;
      background: rgba(18, 24, 36, 0.9);
      padding: 5px 8px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
      gap: 4px;
    }
    .nav-pill-link {
      padding: 8px 16px;
      border-radius: 999px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-muted);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
    }
    .nav-pill-link:hover, .nav-pill-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(121, 82, 255, 0.4), rgba(0, 212, 255, 0.25));
      border: 1px solid rgba(0, 212, 255, 0.3);
      box-shadow: 0 2px 10px rgba(0, 212, 255, 0.15);
    }

    .nav-action-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .nav-search-bar {
      position: relative;
      width: 220px;
    }
    .nav-search-input {
      width: 100%;
      height: 38px;
      background: rgba(25, 34, 51, 0.9);
      border: 1px solid var(--border-color);
      border-radius: 999px;
      padding: 0 16px 0 38px;
      color: #fff;
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
    }
    .nav-search-input:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 10px var(--secondary-glow);
      width: 250px;
    }
    .nav-search-icon {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-subtle);
      font-size: 0.85rem;
    }
    .btn-glow-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: linear-gradient(135deg, var(--primary), #5a2eed);
      color: #fff;
      padding: 9px 20px;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 999px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 15px var(--primary-glow);
      transition: var(--transition);
    }
    .btn-glow-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(121, 82, 255, 0.6);
      color: #fff;
    }

    .mobile-menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: #fff;
      font-size: 1.4rem;
      cursor: pointer;
    }

    /* Section Styling */
    .content-section {
      padding: 75px 0;
      position: relative;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-title-wrap {
      margin-bottom: 42px;
      text-align: left;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(121, 82, 255, 0.12);
      border: 1px solid rgba(121, 82, 255, 0.3);
      color: var(--secondary);
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-heading {
      font-size: 2.1rem;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .section-desc {
      max-width: 820px;
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* Section 1: Hero Dashboard */
    .hero-board-wrapper {
      position: relative;
      border-radius: var(--radius-lg);
      background: radial-gradient(circle at 80% 20%, rgba(121, 82, 255, 0.18), transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(0, 212, 255, 0.12), transparent 45%),
                  var(--bg-surface);
      border: 1px solid var(--border-color);
      padding: 50px 42px;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }
    .hero-h1 {
      font-size: 2.85rem;
      font-weight: 800;
      background: linear-gradient(135deg, #ffffff 30%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 18px;
      letter-spacing: -1px;
    }
    .hero-summary {
      font-size: 1.1rem;
      line-height: 1.8;
      color: var(--text-muted);
      margin-bottom: 30px;
      max-width: 780px;
    }

    /* Metric Bar in Hero */
    .metric-grid-card {
      background: rgba(11, 14, 20, 0.65);
      border: 1px solid rgba(255, 255, 255, 0.07);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: center;
      transition: var(--transition);
    }
    .metric-grid-card:hover {
      border-color: var(--secondary);
      transform: translateY(-3px);
      box-shadow: 0 8px 25px rgba(0, 212, 255, 0.12);
    }
    .metric-num {
      font-size: 2.3rem;
      font-weight: 800;
      color: #fff;
      line-height: 1.1;
      font-feature-settings: "tnum";
    }
    .metric-unit {
      font-size: 0.9rem;
      color: var(--secondary);
      margin-left: 3px;
    }
    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-top: 6px;
    }
    .metric-trend {
      font-size: 0.75rem;
      color: #00ffaa;
      margin-top: 4px;
      display: block;
    }

    /* Before/After Comparative Cards in Hero */
    .compare-duo-panel {
      margin-top: 36px;
      background: rgba(11, 14, 20, 0.5);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px dashed rgba(255, 255, 255, 0.12);
    }
    .duo-box {
      padding: 16px 20px;
      border-radius: var(--radius-sm);
    }
    .duo-box.before {
      background: rgba(255, 87, 34, 0.06);
      border-left: 3px solid var(--accent-orange);
    }
    .duo-box.after {
      background: rgba(0, 212, 255, 0.08);
      border-left: 3px solid var(--secondary);
    }
    .duo-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 6px;
    }

    /* Standard Cards */
    .stream-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .stream-card:hover {
      border-color: rgba(121, 82, 255, 0.45);
      background: var(--bg-card-hover);
      transform: translateY(-4px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    }

    /* Poster Card Style */
    .poster-media-wrap {
      position: relative;
      border-radius: var(--radius-sm);
      overflow: hidden;
      aspect-ratio: 16 / 10;
      margin-bottom: 18px;
    }
    .poster-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .stream-card:hover .poster-media-wrap img {
      transform: scale(1.05);
    }
    .poster-badge {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 4px;
      font-weight: 700;
      backdrop-filter: blur(6px);
    }
    .card-meta-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 14px;
      padding-top: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.82rem;
      color: var(--text-subtle);
    }

    /* Comparison Table */
    .benchmark-table {
      width: 100%;
      border-collapse: collapse;
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
    }
    .benchmark-table th, .benchmark-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }
    .benchmark-table th {
      background: rgba(18, 24, 36, 0.95);
      color: #fff;
      font-weight: 600;
    }
    .benchmark-table tr:hover td {
      background: rgba(121, 82, 255, 0.05);
    }
    .highlight-col {
      background: rgba(0, 212, 255, 0.04);
      color: #fff;
      font-weight: 600;
    }

    /* Timeline Section */
    .timeline-stream {
      position: relative;
      padding: 20px 0;
    }
    .timeline-stream::before {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: 24px;
      width: 2px;
      background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
    }
    .timeline-node {
      position: relative;
      padding-left: 64px;
      margin-bottom: 36px;
    }
    .timeline-dot {
      position: absolute;
      left: 16px;
      top: 4px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--bg-base);
      border: 3px solid var(--secondary;
      box-shadow: 0 0 10px var(--secondary-glow);
    }
    .timeline-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      transition: var(--transition);
    }
    .timeline-card:hover {
      border-color: var(--secondary);
      transform: translateX(4px);
    }
    .timeline-tag {
      font-size: 0.8rem;
      color: var(--secondary);
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 6px;
    }

    /* Accordion Custom */
    .faq-accordion-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-accordion-item:hover {
      border-color: rgba(121, 82, 255, 0.35);
    }
    .faq-header-btn {
      width: 100%;
      text-align: left;
      background: transparent;
      border: none;
      padding: 20px 24px;
      color: #fff;
      font-size: 1.05rem;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }
    .faq-header-btn i {
      transition: transform 0.3s ease;
      color: var(--secondary);
    }
    .faq-body-content {
      padding: 0 24px 20px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.75;
      display: block;
    }

    /* Feedback Console Form */
    .console-form-panel {
      background: linear-gradient(145deg, rgba(18, 24, 36, 0.95), rgba(11, 14, 20, 0.98));
      border: 1px solid rgba(121, 82, 255, 0.3);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .console-input, .console-textarea, .console-select {
      width: 100%;
      background: rgba(11, 14, 20, 0.85);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      color: #fff;
      padding: 12px 16px;
      margin-bottom: 18px;
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
    }
    .console-input:focus, .console-textarea:focus, .console-select:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 12px var(--secondary-glow);
    }

    /* Footer */
    .site-footer {
      background: #080a0f;
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list a {
      color: var(--text-muted);
    }
    .footer-links-list a:hover {
      color: var(--secondary);
    }
    .footer-bottom-row {
      margin-top: 45px;
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.82rem;
      color: var(--text-subtle);
    }

    /* Responsive Queries */
    @media (max-width: 1024px) {
      .hero-h1 { font-size: 2.2rem; }
      .nav-search-bar { display: none; }
    }
    @media (max-width: 768px) {
      .deck-nav-pills { display: none; }
      .mobile-menu-toggle { display: block; }
      .hero-board-wrapper { padding: 30px 20px; }
      .hero-h1 { font-size: 1.85rem; }
      .content-section { padding: 50px 0; }
      .console-form-panel { padding: 24px; }
    }