/* roulang page: index */
:root {
      --bg-main: #060a16;
      --bg-surface: #0b1226;
      --bg-card: rgba(14, 23, 53, 0.65);
      --bg-glass-heavy: rgba(8, 14, 32, 0.88);
      --color-primary: #00d2ff;
      --color-primary-deep: #0066ff;
      --color-accent-cyan: #00f5d4;
      --color-accent-purple: #7b2cbf;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-glass: rgba(0, 210, 255, 0.16);
      --border-glass-hover: rgba(0, 210, 255, 0.45);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px 0 rgba(255, 255, 255, 0.08);
      --shadow-glow: 0 0 20px rgba(0, 210, 255, 0.35);
      --shadow-glow-lg: 0 0 32px rgba(0, 210, 255, 0.6);
      --sidebar-width: 256px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    button, input {
      font-family: inherit;
    }

    /* 侧边导航栏 (桌面端) */
    .app-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-right: 1px solid var(--border-glass);
      z-index: 100;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px 16px;
      transition: transform 0.3s ease;
    }

    .brand-box {
      padding: 8px 12px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 20px;
      box-shadow: var(--shadow-glow);
    }

    .brand-name {
      font-size: 19px;
      font-weight: 700;
      letter-spacing: -0.5px;
      background: linear-gradient(to right, #fff, var(--color-primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .brand-badge {
      display: inline-block;
      font-size: 10px;
      padding: 2px 6px;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: var(--radius-full);
      margin-top: 2px;
    }

    .nav-list {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .nav-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-muted);
      padding: 8px 12px 4px;
      font-weight: 600;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      border-radius: var(--radius-md);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      position: relative;
    }

    .nav-link:hover {
      color: #fff;
      background: rgba(0, 210, 255, 0.08);
      transform: translateX(3px);
    }

    .nav-link.active {
      color: #fff;
      background: linear-gradient(90deg, rgba(0, 210, 255, 0.2), rgba(0, 102, 255, 0.05));
      border: 1px solid var(--border-glass);
      font-weight: 600;
    }

    .nav-link.active::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20%;
      bottom: 20%;
      width: 3px;
      border-radius: 4px;
      background: var(--color-primary);
      box-shadow: 0 0 8px var(--color-primary);
    }

    .nav-icon {
      font-size: 16px;
      opacity: 0.8;
    }

    .sidebar-footer {
      padding: 16px 12px;
      background: rgba(0, 0, 0, 0.25);
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.04);
    }

    .status-indicator {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: var(--text-secondary);
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent-cyan);
      box-shadow: 0 0 8px var(--color-accent-cyan);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(0.85); }
    }

    /* 移动端顶栏 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 99;
      padding: 0 20px;
      align-items: center;
      justify-content: space-between;
    }

    .mobile-menu-btn {
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 22px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* 主内容区推开 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      flex: 1;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* 公共板块排版 */
    .section-spacing {
      padding: 88px 0;
      position: relative;
    }

    .section-title-wrap {
      margin-bottom: 48px;
    }

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--color-primary);
      margin-bottom: 10px;
      padding: 4px 10px;
      background: rgba(0, 210, 255, 0.1);
      border-radius: var(--radius-full);
      border: 1px solid rgba(0, 210, 255, 0.2);
    }

    .section-heading {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      color: #fff;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-secondary);
      margin-top: 12px;
      max-width: 680px;
      line-height: 1.7;
    }

    /* 玻璃拟态与交互组件 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-lg);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }

    .glass-card:hover {
      border-color: var(--border-glass-hover);
      transform: translateY(-4px);
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.8), 0 0 24px rgba(0, 210, 255, 0.2);
    }

    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      color: #fff;
      border: none;
      box-shadow: var(--shadow-glow);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow-lg);
      color: #fff;
    }

    .btn-glass {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-md);
      background: rgba(0, 210, 255, 0.08);
      color: var(--color-primary);
      border: 1px solid var(--border-glass);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-glass:hover {
      background: rgba(0, 210, 255, 0.18);
      border-color: var(--color-primary);
      color: #fff;
      transform: translateY(-2px);
    }

    /* 板块 01: Hero */
    .hero-section {
      position: relative;
      min-height: calc(100vh - 60px);
      display: flex;
      align-items: center;
      padding: 72px 0;
      background: url('/assets/images/a493189ad520e059.jpg') center/cover no-repeat;
      overflow: hidden;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 75% 30%, rgba(6, 10, 22, 0.4) 0%, rgba(6, 10, 22, 0.95) 75%),
                  linear-gradient(180deg, rgba(6, 10, 22, 0.7) 0%, var(--bg-main) 100%);
    }

    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }

    .hero-h1 {
      font-size: 46px;
      font-weight: 900;
      line-height: 1.15;
      letter-spacing: -1px;
      margin-bottom: 20px;
      background: linear-gradient(135deg, #ffffff 30%, var(--color-primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 28px;
      max-width: 600px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }

    .hero-metrics-bar {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding: 16px 20px;
      background: rgba(11, 18, 38, 0.75);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      backdrop-filter: blur(12px);
    }

    .metric-item {
      display: flex;
      flex-direction: column;
    }

    .metric-val {
      font-size: 22px;
      font-weight: 800;
      color: var(--color-accent-cyan);
      font-family: ui-monospace, monospace;
    }

    .metric-key {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 2px;
    }

    .hero-visual {
      position: relative;
    }

    .hero-card-stage {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-glass-hover);
      box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.9), 0 0 30px rgba(0, 210, 255, 0.25);
    }

    .hero-card-stage img {
      width: 100%;
      height: 480px;
      object-fit: cover;
      transform: scale(1.02);
      transition: transform 0.5s ease;
    }

    .hero-card-stage:hover img {
      transform: scale(1.06);
    }

    .hero-stream-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(6, 10, 22, 0.85);
      border: 1px solid var(--color-accent-cyan);
      color: var(--color-accent-cyan);
      font-size: 11px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: var(--radius-full);
      backdrop-filter: blur(8px);
    }

    .hero-stage-info {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 24px;
      background: linear-gradient(to top, rgba(6, 10, 22, 0.95) 10%, transparent 100%);
    }

    /* 板块 02: 痛点解析 */
    .pain-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .pain-card {
      padding: 28px 24px;
      border-left: 3px solid #ff4d6d;
    }

    .pain-card.warning {
      border-left-color: #ffb703;
    }

    .pain-card.purple {
      border-left-color: var(--color-accent-purple);
    }

    .pain-icon {
      font-size: 26px;
      margin-bottom: 16px;
    }

    .pain-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }

    .pain-text {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 板块 03: 解决方案 */
    .solution-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .solution-feature-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .solution-feature-item {
      padding: 22px 24px;
      border-radius: var(--radius-md);
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      display: flex;
      gap: 18px;
    }

    .feature-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .feature-body h4 {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }

    .feature-body p {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    .solution-diagram {
      padding: 32px;
      text-align: center;
    }

    .arch-flow {
      display: flex;
      flex-direction: column;
      gap: 16px;
      position: relative;
    }

    .arch-node {
      background: rgba(11, 18, 38, 0.9);
      border: 1px solid var(--border-glass);
      padding: 16px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .arch-node-name {
      font-weight: 600;
      font-size: 14px;
      color: #fff;
    }

    .arch-node-tag {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: var(--radius-full);
      background: rgba(0, 245, 212, 0.15);
      color: var(--color-accent-cyan);
    }

    /* 板块 04: 分类入口 */
    .category-matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .cat-matrix-card {
      display: block;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      transition: all 0.3s ease;
    }

    .cat-matrix-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-6px);
      box-shadow: 0 12px 30px rgba(0, 210, 255, 0.25);
    }

    .cat-thumb-wrap {
      position: relative;
      height: 190px;
      overflow: hidden;
    }

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

    .cat-matrix-card:hover .cat-thumb-wrap img {
      transform: scale(1.08);
    }

    .cat-badge-float {
      position: absolute;
      top: 12px;
      right: 12px;
      background: rgba(6, 10, 22, 0.85);
      border: 1px solid var(--border-glass);
      padding: 3px 9px;
      font-size: 11px;
      font-weight: 600;
      color: var(--color-primary);
      border-radius: var(--radius-full);
    }

    .cat-info {
      padding: 18px 20px;
    }

    .cat-name {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }

    .cat-meta-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 05: 方法步骤 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-box {
      padding: 32px 26px;
      position: relative;
    }

    .step-num-glow {
      font-size: 40px;
      font-weight: 900;
      color: rgba(0, 210, 255, 0.25);
      line-height: 1;
      margin-bottom: 16px;
      font-family: ui-monospace, monospace;
    }

    .step-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .step-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* 板块 06: 精选展区 */
    .showcase-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .poster-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .poster-card:hover {
      transform: translateY(-5px);
      border-color: var(--color-primary);
      box-shadow: 0 14px 28px rgba(0, 0, 0, 0.6);
    }

    .poster-media {
      position: relative;
      width: 100%;
      height: 250px;
      overflow: hidden;
    }

    .poster-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .poster-card:hover .poster-media img {
      transform: scale(1.05);
    }

    .res-pill {
      position: absolute;
      bottom: 10px;
      left: 10px;
      background: rgba(6, 10, 22, 0.85);
      font-size: 10px;
      font-weight: 700;
      color: var(--color-accent-cyan);
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid rgba(0, 245, 212, 0.3);
    }

    .poster-body {
      padding: 16px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .poster-name {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .poster-tags {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .heat-bar-wrap {
      width: 100%;
      height: 4px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 2px;
      overflow: hidden;
    }

    .heat-bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent-cyan));
    }

    /* 板块 07: 成果数据 */
    .metrics-wall {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: linear-gradient(180deg, rgba(11, 18, 38, 0.7), rgba(6, 10, 22, 0.95));
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      padding: 40px 32px;
    }

    .wall-item {
      text-align: center;
      border-right: 1px solid rgba(255, 255, 255, 0.06);
      padding: 0 16px;
    }

    .wall-item:last-child {
      border-right: none;
    }

    .wall-num {
      font-size: 38px;
      font-weight: 900;
      color: var(--color-primary);
      font-family: ui-monospace, monospace;
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .wall-label {
      font-size: 14px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
    }

    .wall-note {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 08: 客户评价 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testi-card {
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }

    .user-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(0, 210, 255, 0.3), rgba(123, 44, 191, 0.4));
      border: 1px solid var(--border-glass);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
    }

    .user-meta h5 {
      font-size: 15px;
      color: #fff;
      font-weight: 600;
    }

    .user-meta span {
      font-size: 12px;
      color: var(--color-primary);
    }

    .testi-quote {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.65;
      font-style: normal;
    }

    .testi-stars {
      margin-top: 14px;
      color: #ffb703;
      font-size: 13px;
      letter-spacing: 2px;
    }

    /* 板块 09: 适用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      padding: 28px;
    }

    .scenario-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid var(--border-glass);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-size: 20px;
      margin-bottom: 18px;
    }

    .scenario-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .scenario-card p {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 板块 10: 编年史专题 */
    .timeline-wrap {
      position: relative;
      border-left: 2px solid rgba(0, 210, 255, 0.2);
      margin-left: 16px;
      padding-left: 28px;
      display: flex;
      flex-direction: column;
      gap: 32px;
    }

    .timeline-node {
      position: relative;
    }

    .timeline-node::before {
      content: "";
      position: absolute;
      left: -35px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--color-primary);
      box-shadow: 0 0 10px var(--color-primary);
    }

    .timeline-year {
      font-size: 13px;
      font-weight: 700;
      color: var(--color-accent-cyan);
      letter-spacing: 1px;
      margin-bottom: 4px;
    }

    .timeline-title {
      font-size: 17px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }

    .timeline-text {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 板块 11: 资讯公告 */
    .news-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }

    .news-feature {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-glass);
      background: var(--bg-card);
      display: flex;
      flex-direction: column;
    }

    .news-feature img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }

    .news-feature-body {
      padding: 24px;
      flex: 1;
    }

    .news-date {
      font-size: 12px;
      color: var(--color-primary);
      font-weight: 600;
      margin-bottom: 8px;
    }

    .news-feature-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-feature-summary {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    .news-list-side {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .news-mini-item {
      padding: 18px 20px;
      border-radius: var(--radius-md);
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      transition: all 0.25s ease;
    }

    .news-mini-item:hover {
      border-color: var(--border-glass-hover);
      transform: translateX(4px);
    }

    .news-mini-item h5 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
    }

    .news-mini-item p {
      font-size: 12.5px;
      color: var(--text-secondary);
      line-height: 1.5;
    }

    /* 板块 12: 数据指标仪表盘 */
    .dash-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .dash-card {
      padding: 24px;
      border-radius: var(--radius-md);
    }

    .dash-card-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 16px;
    }

    .dash-metric-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-secondary);
    }

    .dash-live-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 11px;
      color: var(--color-accent-cyan);
    }

    .dash-value {
      font-size: 28px;
      font-weight: 800;
      color: #fff;
      font-family: ui-monospace, monospace;
      margin-bottom: 8px;
    }

    .dash-bar-track {
      width: 100%;
      height: 6px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 3px;
      overflow: hidden;
      margin-top: 12px;
    }

    .dash-bar-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary));
    }

    /* 板块 13: 常见问答 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .faq-card {
      padding: 22px 24px;
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }

    .faq-card:hover {
      border-color: var(--border-glass-hover);
    }

    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 10px;
    }

    .faq-q-mark {
      color: var(--color-primary);
      font-family: ui-monospace, monospace;
    }

    .faq-a {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.65;
      padding-left: 22px;
    }

    /* 板块 14: 转化收口 */
    .cta-card-stage {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      text-align: center;
      border: 1px solid var(--border-glass-hover);
      background: radial-gradient(circle at 50% 0%, rgba(0, 210, 255, 0.15) 0%, rgba(11, 18, 38, 0.8) 75%);
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 210, 255, 0.15);
      overflow: hidden;
    }

    .cta-h2 {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .cta-desc {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 620px;
      margin: 0 auto 32px;
      line-height: 1.7;
    }

    .cta-search-box {
      max-width: 520px;
      margin: 0 auto;
      display: flex;
      gap: 10px;
      background: rgba(6, 10, 22, 0.7);
      padding: 6px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-glass);
    }

    .cta-search-box input {
      flex: 1;
      background: transparent;
      border: none;
      padding: 10px 16px;
      color: #fff;
      font-size: 14px;
      outline: none;
    }

    .cta-search-box input::placeholder {
      color: var(--text-muted);
    }

    /* 页脚规范 */
    .site-footer {
      background: #04070f;
      border-top: 1px solid var(--border-glass);
      padding: 48px 0 36px;
      margin-top: 40px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 36px;
    }

    .footer-brand h3 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
      max-width: 440px;
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      font-size: 13px;
      color: var(--text-muted);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .app-sidebar {
        transform: translateX(-100%);
      }
      .app-sidebar.open {
        transform: translateX(0);
      }
      .mobile-header {
        display: flex;
      }
      .main-wrapper {
        margin-left: 0;
        padding-top: 60px;
      }
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 36px;
      }
      .hero-card-stage img {
        height: 380px;
      }
      .pain-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .category-matrix-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-wall {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }
      .wall-item:nth-child(2) {
        border-right: none;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }
      .section-spacing {
        padding: 60px 0;
      }
      .section-heading {
        font-size: 26px;
      }
      .hero-h1 {
        font-size: 32px;
      }
      .hero-metrics-bar {
        grid-template-columns: 1fr;
      }
      .solution-layout {
        grid-template-columns: 1fr;
      }
      .steps-row {
        grid-template-columns: 1fr;
      }
      .testimonial-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .news-wrapper {
        grid-template-columns: 1fr;
      }
      .dash-grid {
        grid-template-columns: 1fr;
      }
      .faq-grid {
        grid-template-columns: 1fr;
      }
      .cta-card-stage {
        padding: 40px 20px;
      }
      .cta-search-box {
        flex-direction: column;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }

    @media (max-width: 520px) {
      .pain-grid {
        grid-template-columns: 1fr;
      }
      .category-matrix-grid {
        grid-template-columns: 1fr;
      }
      .showcase-grid {
        grid-template-columns: 1fr;
      }
      .metrics-wall {
        grid-template-columns: 1fr;
      }
      .wall-item {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        padding-bottom: 20px;
      }
      .wall-item:last-child {
        border-bottom: none;
      }
    }

/* roulang page: category1 */
:root {
    --bg-main: #060a16;
    --bg-surface: #0b1226;
    --bg-card: rgba(14, 23, 53, 0.65);
    --bg-glass-heavy: rgba(8, 14, 32, 0.88);
    --color-primary: #00d2ff;
    --color-primary-deep: #0066ff;
    --color-accent-cyan: #00f5d4;
    --color-accent-purple: #7b2cbf;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-glass: rgba(0, 210, 255, 0.16);
    --border-glass-hover: rgba(0, 210, 255, 0.45);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px 0 rgba(255, 255, 255, 0.08);
    --shadow-glow: 0 0 20px rgba(0, 210, 255, 0.35);
    --shadow-glow-lg: 0 0 32px rgba(0, 210, 255, 0.6);
    --sidebar-width: 256px;
  }
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
    font-size: 16px;
  }
  body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  a {
    color: inherit;
    text-decoration: none;
    transition: all 0.25s ease;
  }
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  button, input {
    font-family: inherit;
  }
  
  /* 左侧固定竖向侧边栏 (桌面端) */
  .sidebar-nav {
    width: var(--sidebar-width);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    background: var(--bg-glass-heavy);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-glass);
    z-index: 100;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
  }
  .brand-box {
    padding: 8px 12px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 20px;
    box-shadow: var(--shadow-glow);
    flex-shrink: 0;
  }
  .brand-name {
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #fff, var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .brand-badge {
    display: inline-block;
    font-size: 10px;
    padding: 2px 6px;
    background: rgba(0, 210, 255, 0.15);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    margin-top: 2px;
  }
  .nav-list {
    list-style: none;
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .nav-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 8px 12px 4px;
    font-weight: 600;
  }
  .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    position: relative;
  }
  .nav-link:hover {
    color: #fff;
    background: rgba(0, 210, 255, 0.08);
    transform: translateX(3px);
  }
  .nav-link.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(0, 210, 255, 0.2), rgba(0, 102, 255, 0.05));
    border: 1px solid var(--border-glass);
    font-weight: 600;
  }
  .nav-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20%;
    bottom: 20%;
    width: 3px;
    border-radius: 4px;
    background: var(--color-primary);
    box-shadow: 0 0 8px var(--color-primary);
  }
  .nav-icon {
    font-size: 16px;
    opacity: 0.8;
  }
  .sidebar-footer {
    padding: 16px 12px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.04);
  }
  .status-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-secondary);
  }
  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent-cyan);
    box-shadow: 0 0 8px var(--color-accent-cyan);
  }

  /* 移动端顶栏 */
  .mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--bg-glass-heavy);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    z-index: 99;
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
  }
  .mobile-menu-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* 主内容区推开 */
  .main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
  }
  .container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* 玻璃拟态卡片 */
  .glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-card);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
  }
  .glass-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-3px);
    box-shadow: 0 16px 36px -4px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 210, 255, 0.2);
  }

  /* 发光按钮体系 */
  .btn-glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow);
    cursor: pointer;
    transition: all 0.25s ease;
  }
  .btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
    border-color: var(--color-accent-cyan);
    color: #fff;
  }
  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 22px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(0, 210, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
  }
  .btn-outline:hover {
    background: rgba(0, 210, 255, 0.15);
    border-color: var(--color-primary);
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.25);
  }

  /* 基础标签与微徽章 */
  .badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
  }
  .badge-primary {
    background: rgba(0, 210, 255, 0.15);
    color: var(--color-primary);
    border: 1px solid rgba(0, 210, 255, 0.3);
  }
  .badge-accent {
    background: rgba(0, 245, 212, 0.15);
    color: var(--color-accent-cyan);
    border: 1px solid rgba(0, 245, 212, 0.3);
  }
  .badge-dark {
    background: rgba(0, 0, 0, 0.6);
    color: #e2e8f0;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  /* 板块 01: 分类页专用标头 */
  .category-header-section {
    padding: 48px 0 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
    background: radial-gradient(circle at 10% 20%, rgba(0, 210, 255, 0.08) 0%, transparent 60%);
  }
  .category-h1 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }
  .category-meta-bar {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 16px;
    color: var(--text-secondary);
    font-size: 13px;
    flex-wrap: wrap;
  }
  .meta-stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
  }
  .meta-stat-value {
    color: var(--color-primary);
    font-weight: 700;
  }

  /* 板块 02: 筛选控制栏 */
  .filter-section {
    padding: 24px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
  .filter-group-wrap {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .filter-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }
  .filter-title {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
    min-width: 68px;
  }
  .filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .filter-pill {
    padding: 6px 14px;
    font-size: 12px;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s ease;
  }
  .filter-pill:hover {
    color: #fff;
    border-color: var(--color-primary);
    background: rgba(0, 210, 255, 0.05);
  }
  .filter-pill.active {
    color: #fff;
    background: rgba(0, 210, 255, 0.15);
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.2);
  }

  /* 板块 03: 主体片单网格 */
  .grid-section {
    padding: 40px 0;
  }
  .section-subtitle-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 24px;
  }
  .section-h2 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .catalog-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .catalog-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    transition: all 0.3s ease;
  }
  .catalog-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-glow);
  }
  .poster-wrap {
    position: relative;
    aspect-ratio: 16 / 10;
    width: 100%;
    overflow: hidden;
    background: #02050e;
  }
  .poster-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }
  .catalog-card:hover .poster-img {
    transform: scale(1.05);
  }
  .poster-badges {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .duration-tag {
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-size: 11px;
    background: rgba(0, 0, 0, 0.75);
    padding: 2px 6px;
    border-radius: 4px;
    color: #cbd5e1;
  }
  .card-body {
    padding: 16px;
  }
  .card-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .card-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    display: flex;
    justify-content: space-between;
  }
  .card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .card-footer {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .load-more-wrap {
    text-align: center;
    margin-top: 36px;
  }

  /* 板块 04: 榜单侧翼/支撑 Top 5 */
  .rank-section {
    padding: 36px 0;
  }
  .rank-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }
  .rank-card {
    padding: 16px;
    border-radius: var(--radius-md);
    background: rgba(14, 23, 53, 0.5);
    border: 1px solid var(--border-glass);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }
  .rank-num {
    font-size: 28px;
    font-weight: 900;
    font-style: italic;
    line-height: 1;
    background: linear-gradient(180deg, #fff, rgba(255, 255, 255, 0.15));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
  }
  .rank-num.top-1 {
    background: linear-gradient(180deg, #ffd700, #ff8c00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .rank-num.top-2 {
    background: linear-gradient(180deg, var(--color-accent-cyan), #00a896);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .rank-num.top-3 {
    background: linear-gradient(180deg, var(--color-primary), #0052cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .rank-title {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .rank-stats {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
  }

  /* 板块 05: 规格说明 */
  .specs-section {
    padding: 36px 0;
  }
  .specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .spec-box {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
  }
  .spec-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: rgba(0, 210, 255, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    margin-bottom: 14px;
    border: 1px solid rgba(0, 210, 255, 0.2);
  }
  .spec-box h3 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
  }
  .spec-box p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
  }

  /* 板块 06: 分类专属问答 */
  .faq-section {
    padding: 36px 0;
  }
  .faq-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.2s ease;
  }
  .faq-item:hover {
    border-color: var(--border-glass-hover);
  }
  .faq-header {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    user-select: none;
  }
  .faq-arrow {
    transition: transform 0.3s ease;
    font-size: 12px;
    color: var(--color-primary);
  }
  .faq-item.active .faq-arrow {
    transform: rotate(180deg);
  }
  .faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
    padding: 0 20px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
  }
  .faq-item.active .faq-body {
    max-height: 200px;
    padding-bottom: 16px;
    transition: max-height 0.3s ease-in-out;
  }

  /* 板块 07: 互动转化 (心愿单与订阅) */
  .cta-section {
    padding: 40px 0 60px;
  }
  .cta-card {
    background: linear-gradient(135deg, rgba(14, 23, 53, 0.8), rgba(6, 10, 22, 0.95));
    border: 1px solid var(--border-glass-hover);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-glow);
  }
  .cta-h2 {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
  }
  .cta-desc {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 24px;
  }
  .cta-form {
    display: flex;
    max-width: 540px;
    margin: 0 auto;
    gap: 10px;
  }
  .cta-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 14px;
    color: #fff;
    outline: none;
    transition: border-color 0.25s ease;
  }
  .cta-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 12px rgba(0, 210, 255, 0.3);
  }
  .cta-input::placeholder {
    color: var(--text-muted);
  }

  /* 页脚样式 */
  .site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-glass);
    padding: 48px 0 24px;
    margin-top: auto;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 36px;
  }
  .footer-brand h3 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 12px;
    font-weight: 700;
  }
  .footer-brand p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 480px;
  }
  .footer-col h4 {
    font-size: 14px;
    color: #fff;
    margin-bottom: 16px;
    font-weight: 600;
  }
  .footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .footer-links a {
    font-size: 13px;
    color: var(--text-secondary);
  }
  .footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(2px);
  }
  .footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 12px;
  }

  /* 响应式断点控制 */
  @media (max-width: 1024px) {
    .sidebar-nav {
      transform: translateX(-100%);
      transition: transform 0.3s ease;
    }
    .sidebar-nav.active {
      transform: translateX(0);
    }
    .mobile-header {
      display: flex;
    }
    .main-wrapper {
      margin-left: 0;
      padding-top: 60px;
    }
    .catalog-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    .rank-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    .specs-grid {
      grid-template-columns: 1fr;
    }
  }

  @media (max-width: 768px) {
    .container {
      padding: 0 16px;
    }
    .category-h1 {
      font-size: 24px;
    }
    .catalog-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }
    .rank-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .cta-form {
      flex-direction: column;
    }
  }

  @media (max-width: 520px) {
    .catalog-grid {
      grid-template-columns: 1fr;
    }
    .rank-grid {
      grid-template-columns: 1fr;
    }
    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }
  }

/* roulang page: category2 */
:root {
      --bg-main: #060a16;
      --bg-surface: #0b1226;
      --bg-card: rgba(14, 23, 53, 0.65);
      --bg-glass-heavy: rgba(8, 14, 32, 0.88);
      --color-primary: #00d2ff;
      --color-primary-deep: #0066ff;
      --color-accent-cyan: #00f5d4;
      --color-accent-purple: #7b2cbf;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-glass: rgba(0, 210, 255, 0.16);
      --border-glass-hover: rgba(0, 210, 255, 0.45);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px 0 rgba(255, 255, 255, 0.08);
      --shadow-glow: 0 0 20px rgba(0, 210, 255, 0.35);
      --shadow-glow-lg: 0 0 32px rgba(0, 210, 255, 0.6);
      --sidebar-width: 256px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
    }
    
    /* 左侧竖向导航 */
    .sidebar-nav {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-right: 1px solid var(--border-glass);
      z-index: 50;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px 16px;
      overflow-y: auto;
      transition: transform 0.3s ease;
    }
    .brand-box {
      padding: 8px 12px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 20px;
      box-shadow: var(--shadow-glow);
      flex-shrink: 0;
    }
    .brand-name {
      font-size: 19px;
      font-weight: 700;
      letter-spacing: -0.5px;
      background: linear-gradient(to right, #fff, var(--color-primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-badge {
      display: inline-block;
      font-size: 10px;
      padding: 2px 6px;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: var(--radius-full);
      margin-top: 2px;
    }
    .nav-list {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .nav-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-muted);
      padding: 8px 12px 4px;
      font-weight: 600;
    }
    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      border-radius: var(--radius-md);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      position: relative;
    }
    .nav-link:hover {
      color: #fff;
      background: rgba(0, 210, 255, 0.08);
      transform: translateX(3px);
    }
    .nav-link.active {
      color: #fff;
      background: linear-gradient(90deg, rgba(0, 210, 255, 0.2), rgba(0, 102, 255, 0.05));
      border: 1px solid var(--border-glass);
      font-weight: 600;
    }
    .nav-link.active::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20%;
      bottom: 20%;
      width: 3px;
      border-radius: 4px;
      background: var(--color-primary);
      box-shadow: 0 0 8px var(--color-primary);
    }
    .nav-icon {
      font-size: 16px;
      opacity: 0.8;
      width: 20px;
      text-align: center;
    }
    .sidebar-footer {
      padding: 16px 12px;
      background: rgba(0, 0, 0, 0.25);
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 12px;
      color: var(--text-muted);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .status-indicator {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--color-accent-cyan);
      font-weight: 600;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent-cyan);
      box-shadow: 0 0 8px var(--color-accent-cyan);
    }

    /* 移动端顶栏与抽屉 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 99;
      padding: 0 20px;
      align-items: center;
      justify-content: space-between;
    }
    .mobile-menu-btn {
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
    }
    .mobile-backdrop {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(4px);
      z-index: 45;
    }
    .mobile-backdrop.active {
      display: block;
    }

    /* 主内容区偏移 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      flex: 1;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* 通用组件与玻璃卡片 */
    .section-spacing {
      padding: 64px 0;
      position: relative;
    }
    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--color-primary);
      margin-bottom: 12px;
      padding: 4px 10px;
      background: rgba(0, 210, 255, 0.1);
      border-radius: var(--radius-full);
      border: 1px solid rgba(0, 210, 255, 0.2);
    }
    .section-heading {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.5px;
      color: #fff;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-secondary);
      margin-top: 10px;
      max-width: 680px;
      line-height: 1.7;
    }
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-lg);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: var(--border-glass-hover);
      transform: translateY(-3px);
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 210, 255, 0.2);
    }
    .glow-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      border: none;
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: all 0.25s ease;
    }
    .glow-btn:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow-lg);
      filter: brightness(1.1);
    }
    .glow-btn-outline {
      background: transparent;
      border: 1px solid var(--border-glass);
      color: var(--color-primary);
      box-shadow: none;
    }
    .glow-btn-outline:hover {
      background: rgba(0, 210, 255, 0.12);
      border-color: var(--color-primary);
    }

    /* 板块 01【分类页专用标头】 */
    .cat-header-panel {
      padding: 48px 0 32px;
      background: radial-gradient(circle at 100% 0%, rgba(0, 210, 255, 0.12) 0%, transparent 60%),
                  linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-main) 100%);
      border-bottom: 1px solid rgba(0, 210, 255, 0.12);
    }
    .cat-header-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      gap: 32px;
    }
    .cat-title-block h1 {
      font-size: 32px;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }
    .cat-title-block h1 span {
      background: linear-gradient(135deg, var(--color-primary), var(--color-accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .cat-metrics-bar {
      display: flex;
      gap: 20px;
      background: rgba(14, 23, 53, 0.8);
      border: 1px solid var(--border-glass);
      padding: 16px 24px;
      border-radius: var(--radius-lg);
    }
    .cat-metric-item {
      display: flex;
      flex-direction: column;
    }
    .cat-metric-item .val {
      font-size: 20px;
      font-weight: 700;
      color: var(--color-accent-cyan);
    }
    .cat-metric-item .lbl {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 02【筛选与检索控制栏】 */
    .filter-wrapper {
      background: var(--bg-surface);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      padding: 18px 0;
    }
    .filter-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px 20px;
    }
    .filter-label {
      font-size: 13px;
      color: var(--text-muted);
      font-weight: 600;
      min-width: 60px;
    }
    .filter-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-pill {
      padding: 6px 14px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-secondary);
      border-radius: var(--radius-full);
      font-size: 13px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .filter-pill:hover {
      color: #fff;
      border-color: var(--border-glass);
      background: rgba(0, 210, 255, 0.08);
    }
    .filter-pill.active {
      background: linear-gradient(135deg, rgba(0, 210, 255, 0.25), rgba(0, 102, 255, 0.2));
      border-color: var(--color-primary);
      color: #fff;
      font-weight: 600;
    }

    /* 板块 03【主体片单网格】 */
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 32px;
    }
    .anime-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .anime-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-glass-hover);
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.8), 0 0 24px rgba(0, 210, 255, 0.25);
    }
    .anime-thumb {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #000;
    }
    .anime-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .anime-card:hover .anime-thumb img {
      transform: scale(1.08);
    }
    .anime-badge {
      position: absolute;
      top: 10px;
      left: 10px;
      background: rgba(0, 10, 30, 0.75);
      backdrop-filter: blur(8px);
      border: 1px solid var(--border-glass);
      color: var(--color-primary);
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
    }
    .anime-status-badge {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(0, 245, 212, 0.15);
      border: 1px solid var(--color-accent-cyan);
      color: var(--color-accent-cyan);
      font-size: 11px;
      font-weight: 600;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      backdrop-filter: blur(8px);
    }
    .anime-info {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .anime-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 8px;
    }
    .anime-desc {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .anime-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 12px;
      font-size: 12px;
      color: var(--text-muted);
    }
    .anime-meta-rating {
      color: #ffb703;
      font-weight: 700;
    }
    .grid-action-wrap {
      margin-top: 48px;
      text-align: center;
    }

    /* 板块 04【榜单侧翼/支撑】Top 5 榜单速递 */
    .top-list-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .top-item-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      padding: 16px;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .top-item-card:hover {
      border-color: var(--border-glass-hover);
      transform: translateY(-4px);
    }
    .top-rank-num {
      position: absolute;
      top: 12px;
      right: 14px;
      font-size: 32px;
      font-weight: 900;
      line-height: 1;
      color: rgba(255, 255, 255, 0.08);
      font-style: italic;
    }
    .top-rank-1 .top-rank-num { color: rgba(0, 210, 255, 0.25); text-shadow: 0 0 12px var(--color-primary); }
    .top-thumb-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      border-radius: var(--radius-md);
      overflow: hidden;
      margin-bottom: 14px;
    }
    .top-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .top-item-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 6px;
    }
    .top-item-hot {
      font-size: 12px;
      color: var(--color-accent-cyan);
      font-weight: 600;
      margin-top: auto;
    }

    /* 板块 05【规格说明】技术规格 */
    .specs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 32px;
    }
    .spec-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .spec-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid rgba(0, 210, 255, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--color-primary);
    }
    .spec-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
    }
    .spec-detail {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }
    .spec-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 6px;
    }
    .spec-tag {
      font-size: 11px;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      color: var(--text-muted);
    }

    /* 板块 06【分类专属问答】FAQ */
    .faq-accordion {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 32px;
      max-width: 900px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      user-select: none;
    }
    .faq-title {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
    }
    .faq-toggle-icon {
      font-size: 14px;
      color: var(--color-primary);
      transition: transform 0.3s ease;
    }
    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      display: none;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }
    .faq-item.active {
      border-color: var(--color-primary);
      box-shadow: 0 0 16px rgba(0, 210, 255, 0.15);
    }
    .faq-item.active .faq-body {
      display: block;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(180deg);
    }

    /* 板块 07【互动转化】心愿单与订阅 */
    .interact-box {
      background: radial-gradient(circle at 50% 50%, rgba(0, 210, 255, 0.12) 0%, rgba(14, 23, 53, 0.7) 100%);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      padding: 48px 36px;
      text-align: center;
      box-shadow: var(--shadow-card);
    }
    .interact-title {
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }
    .interact-desc {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 600px;
      margin: 0 auto 28px;
      line-height: 1.6;
    }
    .subscribe-form {
      display: flex;
      max-width: 520px;
      margin: 0 auto;
      gap: 12px;
    }
    .subscribe-input {
      flex: 1;
      padding: 12px 18px;
      background: rgba(8, 14, 32, 0.85);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }
    .subscribe-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 12px rgba(0, 210, 255, 0.25);
    }

    /* 全局页脚 */
    .site-footer {
      background: #03060d;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 64px 0 32px;
      margin-top: auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }
    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 440px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-secondary);
    }
    .footer-links a:hover {
      color: var(--color-primary);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .sidebar-nav {
        transform: translateX(-100%);
      }
      .sidebar-nav.active {
        transform: translateX(0);
      }
      .mobile-header {
        display: flex;
      }
      .main-wrapper {
        margin-left: 0;
        padding-top: 60px;
      }
      .cards-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .top-list-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .specs-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }
    @media (max-width: 768px) {
      .container {
        padding: 0 20px;
      }
      .cat-header-grid {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .cat-metrics-bar {
        width: 100%;
        justify-content: space-between;
      }
      .cards-grid {
        grid-template-columns: 1fr;
      }
      .top-list-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .subscribe-form {
        flex-direction: column;
      }
      .section-heading {
        font-size: 24px;
      }
      .cat-title-block h1 {
        font-size: 26px;
      }
    }
    @media (max-width: 520px) {
      .top-list-grid {
        grid-template-columns: 1fr;
      }
      .filter-row {
        flex-direction: column;
        align-items: flex-start;
      }
    }

/* roulang page: category4 */
:root {
      --bg-main: #060a16;
      --bg-surface: #0b1226;
      --bg-card: rgba(14, 23, 53, 0.65);
      --bg-glass-heavy: rgba(8, 14, 32, 0.88);
      --color-primary: #00d2ff;
      --color-primary-deep: #0066ff;
      --color-accent-cyan: #00f5d4;
      --color-accent-purple: #7b2cbf;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-glass: rgba(0, 210, 255, 0.16);
      --border-glass-hover: rgba(0, 210, 255, 0.45);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px 0 rgba(255, 255, 255, 0.08);
      --shadow-glow: 0 0 20px rgba(0, 210, 255, 0.35);
      --shadow-glow-lg: 0 0 32px rgba(0, 210, 255, 0.6);
      --sidebar-width: 256px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
    }

    /* 左侧垂直侧边栏 */
    .sidebar {
      width: var(--sidebar-width);
      position: fixed;
      left: 0;
      top: 0;
      bottom: 0;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-right: 1px solid var(--border-glass);
      z-index: 100;
      display: flex;
      flex-direction: column;
      padding: 24px 16px;
      overflow-y: auto;
    }
    .brand-box {
      padding: 8px 12px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 20px;
      box-shadow: var(--shadow-glow);
    }
    .brand-name {
      font-size: 19px;
      font-weight: 700;
      letter-spacing: -0.5px;
      background: linear-gradient(to right, #fff, var(--color-primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-badge {
      display: inline-block;
      font-size: 10px;
      padding: 2px 6px;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: var(--radius-full);
      margin-top: 2px;
    }
    .nav-list {
      list-style: none;
      margin-top: 24px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .nav-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-muted);
      padding: 8px 12px 4px;
      font-weight: 600;
    }
    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      border-radius: var(--radius-md);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      position: relative;
    }
    .nav-link:hover {
      color: #fff;
      background: rgba(0, 210, 255, 0.08);
      transform: translateX(3px);
    }
    .nav-link.active {
      color: #fff;
      background: linear-gradient(90deg, rgba(0, 210, 255, 0.2), rgba(0, 102, 255, 0.05));
      border: 1px solid var(--border-glass);
      font-weight: 600;
    }
    .nav-link.active::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20%;
      bottom: 20%;
      width: 3px;
      border-radius: 4px;
      background: var(--color-primary);
      box-shadow: 0 0 8px var(--color-primary);
    }
    .nav-icon {
      font-size: 16px;
      opacity: 0.8;
    }
    .sidebar-footer {
      margin-top: auto;
      padding: 16px 12px;
      background: rgba(0, 0, 0, 0.25);
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.04);
      font-size: 12px;
      color: var(--text-muted);
    }
    .sidebar-footer .status-indicator {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--color-accent-cyan);
      font-size: 12px;
      margin-bottom: 6px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent-cyan);
      box-shadow: 0 0 8px var(--color-accent-cyan);
    }

    /* 移动端顶栏 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 99;
      padding: 0 20px;
      align-items: center;
      justify-content: space-between;
    }
    .mobile-menu-btn {
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 22px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    /* 主内容区推开 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      flex: 1;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* 模块通用 */
    .section-spacing {
      padding: 60px 0;
      position: relative;
    }
    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      color: var(--color-primary);
      margin-bottom: 10px;
      padding: 4px 10px;
      background: rgba(0, 210, 255, 0.1);
      border-radius: var(--radius-full);
      border: 1px solid rgba(0, 210, 255, 0.2);
    }
    .section-heading {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.5px;
      color: #fff;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-secondary);
      margin-top: 10px;
      max-width: 680px;
      line-height: 1.6;
    }

    /* 玻璃拟态卡片与按钮 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-lg);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: var(--border-glass-hover);
      transform: translateY(-3px);
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 210, 255, 0.2);
    }
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.2);
      box-shadow: var(--shadow-glow);
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow-lg);
      border-color: var(--color-accent-cyan);
    }
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      background: rgba(0, 210, 255, 0.06);
      color: var(--color-primary);
      font-weight: 600;
      font-size: 14px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-glass);
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .btn-ghost:hover {
      background: rgba(0, 210, 255, 0.16);
      border-color: var(--color-primary);
      color: #fff;
      transform: translateY(-2px);
    }

    /* 板块 01: 分类标头 */
    .cat-header-panel {
      padding: 48px 0 32px;
      background: radial-gradient(circle at 10% 20%, rgba(123, 44, 191, 0.2) 0%, transparent 60%),
                  radial-gradient(circle at 90% 80%, rgba(0, 210, 255, 0.15) 0%, transparent 50%),
                  var(--bg-surface);
      border-bottom: 1px solid var(--border-glass);
      position: relative;
    }
    .cat-header-grid {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      gap: 24px;
      flex-wrap: wrap;
    }
    .cat-meta-metrics {
      display: flex;
      gap: 20px;
      background: rgba(6, 10, 22, 0.75);
      border: 1px solid var(--border-glass);
      padding: 16px 24px;
      border-radius: var(--radius-lg);
    }
    .metric-item {
      display: flex;
      flex-direction: column;
    }
    .metric-val {
      font-size: 24px;
      font-weight: 800;
      color: var(--color-accent-cyan);
      letter-spacing: -0.5px;
    }
    .metric-tag {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 02: 筛选控制栏 */
    .filter-bar {
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border-glass);
      padding: 20px 0;
    }
    .filter-group {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 12px;
      flex-wrap: wrap;
    }
    .filter-group:last-child {
      margin-bottom: 0;
    }
    .filter-title {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      min-width: 68px;
    }
    .filter-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-pill {
      font-size: 13px;
      padding: 5px 14px;
      border-radius: var(--radius-full);
      background: rgba(15, 23, 49, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-secondary);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .filter-pill:hover, .filter-pill.active {
      background: rgba(0, 210, 255, 0.15);
      border-color: var(--color-primary);
      color: #fff;
    }

    /* 板块 03: 主体片单网格 */
    .anime-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 32px;
    }
    .anime-card {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .anime-card:hover {
      transform: translateY(-5px);
      border-color: var(--border-glass-hover);
      box-shadow: var(--shadow-glow);
    }
    .card-thumb-wrap {
      position: relative;
      aspect-ratio: 16/10;
      overflow: hidden;
      background: #030712;
    }
    .card-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .anime-card:hover .card-thumb-wrap img {
      transform: scale(1.08);
    }
    .badge-resolution {
      position: absolute;
      top: 10px;
      left: 10px;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      background: rgba(6, 10, 22, 0.85);
      backdrop-filter: blur(8px);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
    }
    .badge-status {
      position: absolute;
      bottom: 10px;
      right: 10px;
      font-size: 11px;
      padding: 3px 8px;
      border-radius: var(--radius-sm);
      background: rgba(0, 0, 0, 0.7);
      color: #fff;
    }
    .card-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .card-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-desc {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 14px;
      flex: 1;
    }
    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 12px;
    }
    .card-meta .heat-val {
      color: var(--color-accent-cyan);
      font-weight: 600;
    }

    /* 单一查看更多按钮容器 */
    .load-more-wrap {
      text-align: center;
      margin-top: 48px;
    }

    /* 板块 04: 榜单支撑区 */
    .rank-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .rank-card {
      background: rgba(14, 23, 53, 0.5);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      padding: 16px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .rank-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-3px);
    }
    .rank-number {
      font-size: 28px;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 8px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .rank-thumb {
      width: 100%;
      height: 110px;
      border-radius: var(--radius-sm);
      overflow: hidden;
      margin-bottom: 10px;
    }
    .rank-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .rank-name {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-stat {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 05: 技术规格 */
    .tech-spec-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 32px;
    }
    .spec-box {
      padding: 28px;
      background: linear-gradient(145deg, rgba(14, 23, 53, 0.7), rgba(8, 14, 32, 0.9));
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
    }
    .spec-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid var(--color-primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--color-primary);
      font-size: 20px;
      margin-bottom: 18px;
    }
    .spec-box h3 {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }
    .spec-box p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 板块 06: 问答手风琴 */
    .faq-container {
      max-width: 860px;
      margin: 32px auto 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }
    .faq-question {
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-toggle-icon {
      font-size: 14px;
      color: var(--color-primary);
      transition: transform 0.3s ease;
    }
    .faq-answer {
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* 板块 07: 交互与订阅 */
    .subscribe-card {
      background: radial-gradient(circle at center, rgba(0, 102, 255, 0.15) 0%, rgba(11, 18, 38, 0.85) 100%);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      padding: 48px;
      text-align: center;
      max-width: 780px;
      margin: 0 auto;
    }
    .sub-form {
      display: flex;
      gap: 12px;
      max-width: 520px;
      margin: 28px auto 0;
    }
    .sub-input {
      flex: 1;
      padding: 12px 18px;
      border-radius: var(--radius-md);
      background: rgba(6, 10, 22, 0.85);
      border: 1px solid var(--border-glass);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }
    .sub-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 10px rgba(0, 210, 255, 0.3);
    }

    /* 页脚 */
    .site-footer {
      background: var(--bg-surface);
      border-top: 1px solid var(--border-glass);
      padding: 60px 0 32px;
      margin-top: auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      max-width: 420px;
    }
    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a {
      font-size: 13px;
      color: var(--text-secondary);
    }
    .footer-links a:hover {
      color: var(--color-primary);
      padding-left: 4px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: var(--text-muted);
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      }
      .sidebar.open {
        transform: translateX(0);
      }
      .mobile-header {
        display: flex;
      }
      .main-wrapper {
        margin-left: 0;
        padding-top: 60px;
      }
      .anime-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .rank-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .tech-spec-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 640px) {
      .container {
        padding: 0 16px;
      }
      .anime-grid {
        grid-template-columns: 1fr;
      }
      .rank-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cat-header-grid {
        flex-direction: column;
        align-items: flex-start;
      }
      .cat-meta-metrics {
        width: 100%;
        justify-content: space-around;
      }
      .sub-form {
        flex-direction: column;
      }
    }

/* roulang page: category3 */
:root {
      --bg-main: #060a16;
      --bg-surface: #0b1226;
      --bg-card: rgba(14, 23, 53, 0.65);
      --bg-glass-heavy: rgba(8, 14, 32, 0.92);
      --color-primary: #00d2ff;
      --color-primary-deep: #0066ff;
      --color-accent-cyan: #00f5d4;
      --color-accent-purple: #7b2cbf;
      --text-primary: #f8fafc;
      --text-secondary: #94a3b8;
      --text-muted: #64748b;
      --border-glass: rgba(0, 210, 255, 0.16);
      --border-glass-hover: rgba(0, 210, 255, 0.45);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.6), inset 0 1px 1px 0 rgba(255, 255, 255, 0.08);
      --shadow-glow: 0 0 20px rgba(0, 210, 255, 0.35);
      --shadow-glow-lg: 0 0 32px rgba(0, 210, 255, 0.6);
      --sidebar-width: 256px;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

    button, input {
      font-family: inherit;
    }

    /* 左侧竖向导航桌面栏 */
    .sidebar {
      width: var(--sidebar-width);
      position: fixed;
      left: 0;
      top: 0;
      bottom: 0;
      height: 100vh;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-right: 1px solid var(--border-glass);
      z-index: 100;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px 16px;
      transition: transform 0.3s ease;
    }

    .brand-box {
      padding: 8px 12px 20px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .brand-icon {
      width: 40px;
      height: 40px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      font-size: 20px;
      box-shadow: var(--shadow-glow);
      flex-shrink: 0;
    }

    .brand-name {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: -0.5px;
      background: linear-gradient(to right, #fff, var(--color-primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .brand-badge {
      display: inline-block;
      font-size: 10px;
      padding: 2px 6px;
      background: rgba(0, 210, 255, 0.15);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      border-radius: var(--radius-full);
      margin-top: 2px;
    }

    .nav-list {
      list-style: none;
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .nav-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--text-muted);
      padding: 8px 12px 4px;
      font-weight: 600;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 14px;
      border-radius: var(--radius-md);
      color: var(--text-secondary);
      font-size: 14px;
      font-weight: 500;
      position: relative;
    }

    .nav-link:hover {
      color: #fff;
      background: rgba(0, 210, 255, 0.08);
      transform: translateX(3px);
    }

    .nav-link.active {
      color: #fff;
      background: linear-gradient(90deg, rgba(0, 210, 255, 0.2), rgba(0, 102, 255, 0.05));
      border: 1px solid var(--border-glass);
      font-weight: 600;
    }

    .nav-link.active::before {
      content: "";
      position: absolute;
      left: 0;
      top: 20%;
      bottom: 20%;
      width: 3px;
      border-radius: 4px;
      background: var(--color-primary);
      box-shadow: 0 0 8px var(--color-primary);
    }

    .nav-icon {
      font-size: 16px;
      opacity: 0.85;
      display: inline-block;
      width: 18px;
      text-align: center;
    }

    .sidebar-footer {
      padding: 14px 12px;
      background: rgba(0, 0, 0, 0.35);
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .sidebar-status {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--color-accent-cyan);
      font-weight: 600;
      margin-bottom: 4px;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-accent-cyan);
      box-shadow: 0 0 8px var(--color-accent-cyan);
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(0.85); }
      100% { opacity: 1; transform: scale(1); }
    }

    /* 移动端顶栏 */
    .mobile-header {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: 60px;
      background: var(--bg-glass-heavy);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-glass);
      z-index: 99;
      padding: 0 20px;
      align-items: center;
      justify-content: space-between;
    }

    .mobile-menu-btn {
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 6px;
    }

    /* 主内容区推开 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      flex: 1;
      display: flex;
      flex-direction: column;
      min-width: 0;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 32px;
    }

    /* 玻璃拟态卡片 */
    .glass-card {
      background: var(--bg-card);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-glass);
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-lg);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }

    .glass-card:hover {
      border-color: var(--border-glass-hover);
      box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 210, 255, 0.2);
    }

    /* 发光按钮 */
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      border: none;
      cursor: pointer;
      box-shadow: var(--shadow-glow);
      transition: all 0.25s ease;
      text-shadow: 0 1px 2px rgba(0,0,0,0.3);
    }

    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-glow-lg);
      border-color: var(--color-accent-cyan);
      color: #fff;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 24px;
      background: rgba(0, 210, 255, 0.05);
      border: 1px solid var(--color-primary);
      color: var(--color-primary);
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-md);
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .btn-outline:hover {
      background: rgba(0, 210, 255, 0.15);
      box-shadow: var(--shadow-glow);
      color: #fff;
      transform: translateY(-2px);
    }

    /* 板块 01: 分类专属标头 */
    .category-header-section {
      padding: 48px 0 24px;
      position: relative;
    }

    .cat-header-box {
      padding: 36px 40px;
      background: radial-gradient(circle at 10% 20%, rgba(0, 210, 255, 0.12), transparent 45%),
                  radial-gradient(circle at 90% 80%, rgba(123, 44, 191, 0.15), transparent 50%),
                  var(--bg-card);
    }

    .cat-badge-top {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 4px 12px;
      background: rgba(0, 210, 255, 0.12);
      border: 1px solid rgba(0, 210, 255, 0.3);
      border-radius: var(--radius-full);
      font-size: 12px;
      font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 16px;
    }

    .cat-title {
      font-size: 32px;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: #fff;
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .cat-desc {
      font-size: 15px;
      color: var(--text-secondary);
      max-width: 820px;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .cat-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .stat-mini-item {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .stat-mini-num {
      font-size: 22px;
      font-weight: 800;
      color: var(--color-accent-cyan);
      letter-spacing: -0.5px;
    }

    .stat-mini-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 板块 02: 筛选控制栏 */
    .filter-section {
      padding: 16px 0 32px;
    }

    .filter-panel {
      padding: 24px 28px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .filter-row {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .filter-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      min-width: 72px;
    }

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

    .filter-tag {
      padding: 6px 14px;
      border-radius: var(--radius-full);
      font-size: 13px;
      color: var(--text-secondary);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .filter-tag:hover {
      color: #fff;
      border-color: var(--color-primary);
      background: rgba(0, 210, 255, 0.08);
    }

    .filter-tag.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(0, 210, 255, 0.25), rgba(0, 102, 255, 0.25));
      border-color: var(--color-primary);
      box-shadow: 0 0 10px rgba(0, 210, 255, 0.2);
    }

    /* 板块 03: 主体片单网格 */
    .anime-grid-section {
      padding: 16px 0 48px;
}

    .anime-grid-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 24px;
    }

    .anime-grid-count {
      font-size: 14px;
      color: var(--text-secondary);
    }

    .anime-grid-count span {
      color: var(--color-primary);
      font-weight: 700;
    }

    .card-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .anime-card {
      display: flex;
      flex-direction: column;
      border-radius: var(--radius-lg);
      background: var(--bg-surface);
      border: 1px solid var(--border-glass);
      overflow: hidden;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .anime-card:hover {
      transform: translateY(-6px);
      border-color: var(--color-primary);
      box-shadow: 0 14px 30px -4px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 210, 255, 0.3);
    }

    .anime-poster-box {
      position: relative;
      aspect-ratio: 16 / 10;
      overflow: hidden;
      background: #02050e;
    }

    .anime-poster-img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .anime-card:hover .anime-poster-img {
      transform: scale(1.08);
    }

    .badge-resolution {
      position: absolute;
      top: 10px;
      left: 10px;
      padding: 3px 8px;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(8px);
      border: 1px solid var(--color-accent-cyan);
      color: var(--color-accent-cyan);
      font-size: 11px;
      font-weight: 700;
      border-radius: 4px;
      letter-spacing: 0.5px;
    }

    .badge-audio {
      position: absolute;
      top: 10px;
      right: 10px;
      padding: 3px 8px;
      background: rgba(123, 44, 191, 0.8);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #fff;
      font-size: 11px;
      font-weight: 600;
      border-radius: 4px;
    }

    .poster-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(11, 18, 38, 0.95) 0%, transparent 60%);
      display: flex;
      align-items: flex-end;
      padding: 12px 14px;
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .anime-card:hover .poster-overlay {
      opacity: 1;
    }

    .poster-quick-play {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      color: #fff;
      background: var(--color-primary-deep);
      padding: 4px 10px;
      border-radius: var(--radius-full);
      font-weight: 600;
    }

    .anime-info-box {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex: 1;
      justify-content: space-between;
    }

    .anime-card-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 8px;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .anime-card-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 12px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .anime-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-secondary);
      padding-top: 10px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .meta-fps {
      display: flex;
      align-items: center;
      gap: 4px;
      color: var(--color-primary);
    }

    .grid-pagination-wrap {
      margin-top: 40px;
      text-align: center;
    }

    /* 板块 04: 播放量榜单 */
    .ranking-section {
      padding: 32px 0 56px;
    }

    .ranking-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .rank-card {
      padding: 18px 16px;
      display: flex;
      flex-direction: column;
      position: relative;
      background: var(--bg-surface);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
    }

    .rank-card:hover {
      border-color: var(--color-primary);
      transform: translateY(-4px);
    }

    .rank-number {
      font-size: 32px;
      font-weight: 900;
      line-height: 1;
      margin-bottom: 12px;
      font-style: italic;
      color: rgba(255, 255, 255, 0.15);
      transition: color 0.25s ease;
    }

    .rank-card:nth-child(1) .rank-number {
      color: var(--color-accent-cyan);
      text-shadow: 0 0 16px rgba(0, 245, 212, 0.4);
    }

    .rank-card:nth-child(2) .rank-number {
      color: var(--color-primary);
      text-shadow: 0 0 16px rgba(0, 210, 255, 0.4);
    }

    .rank-card:nth-child(3) .rank-number {
      color: #9381ff;
      text-shadow: 0 0 16px rgba(147, 129, 255, 0.4);
    }

    .rank-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      line-height: 1.4;
      margin-bottom: 8px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .rank-spec {
      font-size: 11px;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    .rank-heat-bar {
      width: 100%;
      height: 4px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-full);
      overflow: hidden;
    }

    .rank-heat-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent-cyan));
      border-radius: var(--radius-full);
    }

    /* 板块 05: 技术规格说明 */
    .specs-section {
      padding: 32px 0 56px;
    }

    .specs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 24px;
    }

    .spec-card {
      padding: 28px;
    }

    .spec-icon-box {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      background: rgba(0, 210, 255, 0.1);
      border: 1px solid var(--border-glass);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--color-primary);
      margin-bottom: 18px;
    }

    .spec-card-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .spec-card-text {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* 板块 06: 分类专属问答 */
    .faq-section {
      padding: 32px 0 56px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-top: 24px;
      max-width: 980px;
    }

    .faq-item {
      padding: 20px 24px;
      cursor: pointer;
    }

    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .faq-arrow {
      font-size: 12px;
      color: var(--color-primary);
      transition: transform 0.3s ease;
    }

    .faq-item.active .faq-arrow {
      transform: rotate(180deg);
    }

    .faq-a {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    /* 板块 07: 互动心愿单 */
    .subscribe-section {
      padding: 32px 0 64px;
    }

    .sub-box {
      padding: 40px;
      text-align: center;
      background: radial-gradient(circle at center, rgba(0, 102, 255, 0.15), transparent 70%), var(--bg-card);
      border: 1px solid var(--border-glass-hover);
    }

    .sub-title {
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 10px;
    }

    .sub-desc {
      font-size: 14px;
      color: var(--text-secondary);
      max-width: 600px;
      margin: 0 auto 24px;
      line-height: 1.6;
    }

    .sub-form {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto;
    }

    .sub-input {
      flex: 1;
      padding: 12px 18px;
      background: rgba(6, 10, 22, 0.8);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      color: #fff;
      font-size: 14px;
      outline: none;
      transition: border-color 0.25s ease;
    }

    .sub-input:focus {
      border-color: var(--color-primary);
      box-shadow: 0 0 12px rgba(0, 210, 255, 0.3);
    }

    /* 页脚 */
    .site-footer {
      background: #03060d;
      border-top: 1px solid var(--border-glass);
      padding: 64px 0 32px;
      margin-top: auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      margin-bottom: 48px;
    }

    .footer-brand h3 {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 440px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      letter-spacing: 0.5px;
    }

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

    .footer-links a {
      font-size: 13px;
      color: var(--text-secondary);
    }

    .footer-links a:hover {
      color: var(--color-primary);
      padding-left: 4px;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 响应式断点 */
    @media (max-width: 1120px) {
      .card-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .ranking-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .cat-stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 991px) {
      .sidebar {
        transform: translateX(-100%);
      }
      .sidebar.active {
        transform: translateX(0);
      }
      .mobile-header {
        display: flex;
      }
      .main-wrapper {
        margin-left: 0;
        padding-top: 60px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .specs-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding: 0 16px;
      }
      .cat-header-box {
        padding: 24px 20px;
      }
      .cat-title {
        font-size: 24px;
      }
      .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }
      .ranking-grid {
        grid-template-columns: 1fr;
      }
      .cat-stats-row {
        grid-template-columns: 1fr;
      }
      .sub-form {
        flex-direction: column;
        width: 100%;
      }
      .sub-box {
        padding: 28px 16px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }

    @media (max-width: 480px) {
      .card-grid {
        grid-template-columns: 1fr;
      }
    }