/* roulang page: index */
:root {
      --primary: #ff2a6d;
      --primary-hover: #ff0055;
      --secondary: #05d9e8;
      --accent-purple: #7928ca;
      --bg-dark: #0b0f19;
      --bg-card: #131b2e;
      --bg-card-hover: #1a253e;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(255, 42, 109, 0.3);
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
      --shadow-primary: 0 12px 25px rgba(255, 42, 109, 0.28);
      --container-max: 1280px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-main);
      line-height: 1.75;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul, ol {
      list-style: none;
    }

    button, input {
      font-family: inherit;
      border: none;
      outline: none;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶部导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.5px;
    }

    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent-purple));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(255, 42, 109, 0.4);
    }

    .logo-badge svg {
      width: 20px;
      height: 20px;
      fill: #fff;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }

    .nav-link:hover, .nav-link.active {
      color: #fff;
    }

    .nav-link.active::after, .nav-link:hover::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 2px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .btn-glow {
      background: linear-gradient(135deg, var(--primary), #e60067);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(255, 42, 109, 0.4);
      color: #fff;
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.3);
      color: #fff;
    }

    /* 板块通用 */
    .section-spacing {
      padding: 90px 0;
      position: relative;
    }

    .section-spacing-alt {
      background: #0e1424;
      padding: 90px 0;
      position: relative;
    }

    .section-heading {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 56px auto;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 5px 14px;
      background: rgba(255, 42, 109, 0.12);
      border: 1px solid rgba(255, 42, 109, 0.3);
      color: var(--primary);
      border-radius: var(--radius-full);
      margin-bottom: 16px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. Hero 沉浸大底 */
    .hero-cinematic {
      padding-top: 160px;
      padding-bottom: 100px;
      position: relative;
      background: radial-gradient(circle at 50% 20%, rgba(121, 40, 202, 0.25) 0%, rgba(255, 42, 109, 0.12) 35%, transparent 70%), #0b0f19;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.5px;
      margin-bottom: 22px;
      color: #fff;
    }

    .hero-h1 .gradient-txt {
      background: linear-gradient(135deg, #fff 20%, var(--secondary) 60%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-summary {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.85;
      margin-bottom: 36px;
    }

    .hero-btns {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-badges-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .badge-pill {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-full);
      font-size: 12px;
      color: var(--text-muted);
    }

    .badge-pill span.dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--secondary);
      box-shadow: 0 0 8px var(--secondary);
    }

    .hero-visual-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8), 0 0 30px rgba(5, 217, 232, 0.1);
      position: relative;
    }

    .player-mockup-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 18px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .player-dots {
      display: flex;
      gap: 6px;
    }

    .player-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.2);
    }

    .player-status-tag {
      font-size: 11px;
      color: var(--secondary);
      background: rgba(5, 217, 232, 0.1);
      padding: 2px 10px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(5, 217, 232, 0.25);
    }

    .player-canvas-area {
      height: 240px;
      background: linear-gradient(145deg, #1b2640, #0c111e);
      border-radius: var(--radius-md);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .pulse-play-btn {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      background: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      box-shadow: 0 0 30px rgba(255, 42, 109, 0.6);
      cursor: pointer;
      transition: transform 0.25s ease;
    }

    .pulse-play-btn:hover {
      transform: scale(1.1);
    }

    .player-metrics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 20px;
    }

    .metric-subcard {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-sm);
      padding: 12px;
      text-align: center;
    }

    .metric-subcard .lbl {
      font-size: 11px;
      color: var(--text-dim);
      margin-bottom: 4px;
    }

    .metric-subcard .val {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 2. 核心专区与视听服务矩阵 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      transition: all 0.3s ease;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-glow);
      box-shadow: 0 14px 30px rgba(255, 42, 109, 0.12);
    }

    .service-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: rgba(255, 42, 109, 0.1);
      border: 1px solid rgba(255, 42, 109, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
    }

    .service-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }

    .service-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 3. 性能看板 */
    .dashboard-panel {
      background: linear-gradient(135deg, rgba(19, 27, 46, 0.9), rgba(11, 15, 25, 0.95));
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-card);
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }

    .stat-item {
      text-align: center;
      position: relative;
    }

    .stat-item:not(:last-child)::after {
      content: '';
      position: absolute;
      right: -15px;
      top: 15%;
      height: 70%;
      width: 1px;
      background: rgba(255, 255, 255, 0.08);
    }

    .stat-number {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.1;
      margin-bottom: 10px;
      background: linear-gradient(135deg, #fff, var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .stat-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .stat-detail {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 4. 接入流程 */
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }

    .step-num {
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: rgba(5, 217, 232, 0.15);
      border: 1px solid var(--secondary);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 18px;
    }

    .step-name {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }

    .step-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 5. 热门视听案例墙 */
    .case-wall-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 26px;
    }

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

    .case-featured:hover {
      border-color: var(--border-glow);
    }

    .case-poster {
      height: 280px;
      background: linear-gradient(135deg, #1f2d4d, #0b1120);
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .poster-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(0, 0, 0, 0.7);
      backdrop-filter: blur(4px);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 11px;
      font-weight: 600;
      color: var(--secondary);
      border: 1px solid rgba(5, 217, 232, 0.3);
    }

    .poster-duration {
      position: absolute;
      bottom: 14px;
      right: 14px;
      background: rgba(0, 0, 0, 0.75);
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 11px;
      color: #fff;
    }

    .case-featured-info {
      padding: 24px;
    }

    .case-featured-title {
      font-size: 19px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .case-featured-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }

    .case-meta {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 12px;
      color: var(--text-dim);
    }

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

    .case-mini-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 16px;
      display: flex;
      gap: 16px;
      transition: all 0.25s ease;
    }

    .case-mini-item:hover {
      border-color: rgba(255, 42, 109, 0.3);
      transform: translateX(4px);
    }

    .case-mini-thumb {
      width: 100px;
      height: 72px;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, #18233c, #0b0f19);
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      color: var(--secondary);
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .case-mini-info {
      flex: 1;
    }

    .case-mini-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .case-mini-desc {
      font-size: 12px;
      color: var(--text-muted);
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* 6. CMS 动态资讯列表 */
    .cms-layout {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 30px;
    }

    .cms-featured-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .cms-list-col {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .cms-row-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 20px;
      transition: all 0.25s ease;
      display: block;
    }

    .cms-row-card:hover {
      border-color: rgba(255, 42, 109, 0.4);
      background: var(--bg-card-hover);
    }

    .cms-card-tag {
      font-size: 11px;
      color: var(--primary);
      margin-bottom: 6px;
      display: inline-block;
      font-weight: 600;
    }

    .cms-card-title {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .cms-card-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 10px;
    }

    .cms-card-meta {
      font-size: 12px;
      color: var(--text-dim);
    }

    .cms-empty-state {
      padding: 40px;
      text-align: center;
      color: var(--text-muted);
      background: var(--bg-card);
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      grid-column: 1 / -1;
    }

    /* 7. 技术支撑矩阵 */
    .tech-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }

    .tech-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
    }

    .tech-code-pill {
      font-family: monospace;
      font-size: 11px;
      background: rgba(5, 217, 232, 0.1);
      color: var(--secondary);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 16px;
    }

    .tech-title {
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .tech-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 8. 多端应用场景 */
    .multi-device-box {      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px;
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 40px;
      align-items: center;
    }

    .device-visual-wrap {
      background: linear-gradient(135deg, rgba(255, 42, 109, 0.08), rgba(5, 217, 232, 0.08));
      border-radius: var(--radius-md);
      padding: 30px;
      border: 1px solid rgba(255, 255, 255, 0.05);
      position: relative;
    }

    .device-badge-row {
      display: flex;
      gap: 10px;
      margin-bottom: 20px;
    }

    .device-tag {
      background: rgba(255, 255, 255, 0.06);
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-size: 12px;
      color: var(--secondary);
    }

    .device-preview-screen {
      background: #080c14;
      border: 2px solid rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 20px;
      text-align: center;
    }

    .device-screen-title {
      font-size: 14px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 8px;
    }

    .device-screen-desc {
      font-size: 12px;
      color: var(--text-dim);
    }

    .device-points-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .point-entry {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }

    .point-dot {
      width: 24px;
      height: 24px;
      border-radius: 6px;
      background: rgba(255, 42, 109, 0.15);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      flex-shrink: 0;
      margin-top: 2px;
    }

    .point-title {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 4px;
    }

    .point-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 9. 画质优化与对比 */
    .compare-container {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 26px;
    }

    .compare-card {
      border-radius: var(--radius-md);
      padding: 30px;
      position: relative;
    }

    .compare-standard {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.06);
    }

    .compare-enhanced {
      background: linear-gradient(145deg, rgba(255, 42, 109, 0.06), rgba(19, 27, 46, 0.95));
      border: 1px solid rgba(255, 42, 109, 0.3);
      box-shadow: 0 10px 30px rgba(255, 42, 109, 0.1);
    }

    .compare-label {
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
      display: inline-block;
    }

    .compare-standard .compare-label {
      color: var(--text-dim);
    }

    .compare-enhanced .compare-label {
      color: var(--primary);
    }

    .compare-h3 {
      font-size: 19px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .compare-p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .compare-specs-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 13px;
      color: var(--text-main);
    }

    .compare-specs-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 10. FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }

    .faq-item:hover {
      border-color: rgba(255, 255, 255, 0.16);
    }

    .faq-question {
      padding: 22px 26px;
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }

    .faq-q-icon {
      width: 20px;
      height: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary);
      font-weight: 700;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      padding: 0 26px 22px 26px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }

    /* 11. 安全保障条 */
    .security-bar-wrap {
      background: linear-gradient(90deg, #101626, #162036, #101626);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
    }

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

    .security-cell {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .sec-icon-circle {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(5, 217, 232, 0.1);
      border: 1px solid rgba(5, 217, 232, 0.25);
      color: var(--secondary);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .sec-name {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 2px;
    }

    .sec-desc {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 12. 合作伙伴 */
    .partner-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .partner-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-sm);
      padding: 24px 16px;
      text-align: center;
      transition: all 0.25s ease;
    }

    .partner-box:hover {
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(5, 217, 232, 0.3);
      transform: translateY(-3px);
    }

    .partner-name {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .partner-role {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 13. 底部收口 CTA */
    .cta-container {
      background: radial-gradient(circle at 50% 50%, rgba(255, 42, 109, 0.2) 0%, rgba(121, 40, 202, 0.1) 40%, rgba(11, 15, 25, 0.95) 80%), var(--bg-card);
      border: 1px solid rgba(255, 42, 109, 0.3);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
    }

    .cta-title {
      font-size: 34px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 18px;
    }

    .cta-p {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto 36px auto;
      line-height: 1.8;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 全局页脚 */
    .site-footer {
      background: #080c14;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
      font-size: 14px;
      color: var(--text-dim);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr repeat(3, 1fr);
      gap: 40px;
      margin-bottom: 50px;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .footer-about {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 320px;
    }

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

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

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

    .footer-bottom {
      padding-top: 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
    }

    .footer-bottom a {
      color: var(--secondary);
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .service-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item:not(:last-child)::after {
        display: none;
      }
      .steps-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .tech-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-wall-grid {
        grid-template-columns: 1fr;
      }
      .cms-layout {
        grid-template-columns: 1fr;
      }
      .multi-device-box {
        grid-template-columns: 1fr;
      }
      .security-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partner-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-container {
        height: 64px;
      }
      .main-nav {
        display: none;
      }
      .hero-cinematic {
        padding-top: 110px;
        padding-bottom: 60px;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .service-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid {
        grid-template-columns: 1fr;
      }
      .steps-row {
        grid-template-columns: 1fr;
      }
      .tech-grid {
        grid-template-columns: 1fr;
      }
      .compare-container {
        grid-template-columns: 1fr;
      }
      .security-bar-grid {
        grid-template-columns: 1fr;
      }
      .partner-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .dashboard-panel, .multi-device-box, .cta-container {
        padding: 24px;
      }
      .hero-badges-row {
        flex-direction: column;
      }
    }

/* roulang page: article */
:root {
      --primary: #ff2a6d;
      --primary-hover: #ff0055;
      --secondary: #05d9e8;
      --accent-purple: #7928ca;
      --bg-dark: #0b0f19;
      --bg-card: #131b2e;
      --bg-card-hover: #1a253e;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(255, 42, 109, 0.3);
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
      --shadow-primary: 0 12px 25px rgba(255, 42, 109, 0.28);
      --container-max: 1280px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-main);
      line-height: 1.8;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
      border: none;
      outline: none;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .reading-container {
      width: 100%;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 顶部导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(11, 15, 25, 0.9);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.5px;
    }
    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent-purple));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(255, 42, 109, 0.4);
    }
    .logo-badge svg {
      width: 20px;
      height: 20px;
      fill: #fff;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: #fff;
    }
    .nav-link.active::after, .nav-link:hover::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--primary), #e60067);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(255, 42, 109, 0.4);
      color: #fff;
    }

    /* 页面骨架与阅读流 */
    .article-page-main {
      padding-top: 110px;
      padding-bottom: 90px;
      min-height: 80vh;
      background: radial-gradient(circle at 50% 10%, rgba(121, 40, 202, 0.12) 0%, transparent 60%), #0b0f19;
    }

    /* 板块 1: 面包屑与归属条 */
    .article-breadcrumbs {
      padding: 18px 0 24px 0;
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-dim);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      margin-bottom: 36px;
    }
    .article-breadcrumbs a {
      color: var(--text-muted);
    }
    .article-breadcrumbs a:hover {
      color: var(--secondary);
    }
    .article-breadcrumbs .sep {
      opacity: 0.5;
    }
    .article-breadcrumbs .current {
      color: var(--text-main);
      max-width: 320px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    /* 板块 2: 头部元信息与 H1 标题 */
    .article-header {
      margin-bottom: 40px;
    }
    .article-meta-tags {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
    }
    .article-badge-cat {
      background: rgba(255, 42, 109, 0.15);
      border: 1px solid rgba(255, 42, 109, 0.35);
      color: var(--primary);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .article-badge-status {
      background: rgba(5, 217, 232, 0.12);
      border: 1px solid rgba(5, 217, 232, 0.3);
      color: var(--secondary);
      font-size: 12px;
      font-weight: 500;
      padding: 4px 10px;
      border-radius: var(--radius-full);
    }
    .article-title-h1 {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.35;
      color: #fff;
      margin-bottom: 22px;
      letter-spacing: -0.3px;
    }
    .article-info-bar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: var(--text-dim);
      padding: 14px 20px;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
    }
    .article-info-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .article-info-item svg {
      width: 15px;
      height: 15px;
      fill: var(--text-dim);
    }

    /* 板块 4: 核心视听亮点与参数摘要卡片 (置于正文前) */
    .article-spec-card {
      background: linear-gradient(145deg, rgba(19, 27, 46, 0.85), rgba(14, 20, 36, 0.95));
      border: 1px solid rgba(5, 217, 232, 0.25);
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 40px;
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
      position: relative;
      overflow: hidden;
    }
    .article-spec-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: linear-gradient(180deg, var(--secondary), var(--primary));
    }
    .spec-card-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary);
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
    }
    .spec-card-title svg {
      width: 18px;
      height: 18px;
      fill: currentColor;
    }
    .spec-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .spec-item {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.05);
      padding: 12px 16px;
      border-radius: var(--radius-sm);
    }
    .spec-item-k {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 4px;
    }
    .spec-item-v {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    /* 板块 3: 正文主体深度排版阅读区 */
    .article-content-body {
      font-size: 16px;
      color: #cbd5e1;
      line-height: 1.95;
      margin-bottom: 48px;
      word-break: break-word;
    }
    .article-content-body h2 {
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      margin-top: 40px;
      margin-bottom: 18px;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      position: relative;
    }
    .article-content-body h2::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      width: 48px;
      height: 2px;
      background: var(--primary);
    }
    .article-content-body h3 {
      font-size: 20px;
      font-weight: 600;
      color: #f1f5f9;
      margin-top: 32px;
      margin-bottom: 14px;
    }
    .article-content-body p {
      margin-bottom: 22px;
    }
    .article-content-body blockquote {
      margin: 28px 0;
      padding: 18px 24px;
      background: rgba(255, 42, 109, 0.06);
      border-left: 4px solid var(--primary);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      color: #e2e8f0;
      font-style: normal;
    }
    .article-content-body ul, .article-content-body ol {
      margin: 20px 0 24px 28px;
    }
    .article-content-body li {
      margin-bottom: 10px;
    }
    .article-content-body strong {
      color: #fff;
      font-weight: 700;
    }
    .article-content-body img {
      margin: 32px auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .article-content-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 32px 0;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .article-content-body th, .article-content-body td {
      padding: 12px 18px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      text-align: left;
    }
    .article-content-body th {
      background: rgba(255, 255, 255, 0.05);
      color: #fff;
      font-weight: 600;
    }

    /* 空状态卡片 */
    .article-empty-box {
      text-align: center;
      padding: 70px 30px;
      background: var(--bg-card);
      border: 1px dashed var(--border-color);
      border-radius: var(--radius-md);
      margin: 40px 0;
    }
    .article-empty-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 16px auto;
      fill: var(--text-dim);
    }
    .article-empty-box h3 {
      font-size: 20px;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .article-empty-box p {
      color: var(--text-muted);
      margin-bottom: 24px;
    }

    /* 板块 5: 原创声明与版权合规面板 */
    .article-copyright-panel {
      background: rgba(19, 27, 46, 0.7);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-bottom: 36px;
      display: flex;
      align-items: flex-start;
      gap: 16px;
    }
    .panel-icon-wrap {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 42, 109, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }
    .panel-icon-wrap svg {
      width: 18px;
      height: 18px;
      fill: var(--primary);
    }
    .copyright-text-content {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .copyright-text-content strong {
      color: var(--text-main);
    }

    /* 板块 6: 交互互动与多端分享工具栏 */
    .article-actions-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      padding: 24px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      margin-bottom: 40px;
    }
    .action-btn-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-full);
      color: var(--text-main);
      font-size: 13px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .action-btn-item svg {
      width: 16px;
      height: 16px;
      fill: currentColor;
    }
    .action-btn-item:hover {
      background: rgba(255, 42, 109, 0.15);
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* 板块 7: 上下一篇视听内容导航卡片 */
    .article-prev-next-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 60px;
    }
    .pn-nav-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      transition: all 0.25s ease;
    }
    .pn-nav-card:hover {
      border-color: var(--border-glow);
      background: var(--bg-card-hover);
      transform: translateY(-2px);
    }
    .pn-label {
      font-size: 12px;
      color: var(--text-dim);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .pn-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    /* 板块 8: 妖精视频相关热门资讯推荐矩阵 */
    .article-recommend-section {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 50px;
    }
    .recommend-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 28px;
    }
    .recommend-h2 {
      font-size: 22px;
      font-weight: 700;
      color: #fff;
    }
    .recommend-more-link {
      font-size: 13px;
      color: var(--secondary);
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .recommend-more-link:hover {
      color: #fff;
    }
    .recommend-cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .rec-item-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }
    .rec-item-card:hover {
      border-color: rgba(255, 42, 109, 0.3);
      transform: translateY(-3px);
      box-shadow: var(--shadow-card);
    }
    .rec-thumb-box {
      height: 140px;
      background: linear-gradient(135deg, #18233d, #0d1424);
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }
    .rec-thumb-badge {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(8px);
      color: var(--secondary);
      font-size: 11px;
      padding: 2px 8px;
      border-radius: var(--radius-full);
      border: 1px solid rgba(5, 217, 232, 0.2);
    }
    .rec-play-icon {
      width: 38px;
      height: 38px;
      background: rgba(255, 42, 109, 0.2);
      border: 1px solid rgba(255, 42, 109, 0.4);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .rec-play-icon svg {
      width: 16px;
      height: 16px;
      fill: #fff;
      margin-left: 2px;
    }
    .rec-content-box {
      padding: 18px;
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .rec-card-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
      margin-bottom: 10px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .rec-card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 页脚全局样式 */
    .site-footer {
      background: #070a12;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 35px 0;
      color: var(--text-muted);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand {
      max-width: 320px;
    }
    .footer-about {
      margin-top: 16px;
      font-size: 13px;
      line-height: 1.75;
      color: var(--text-dim);
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-link {
      color: var(--text-muted);
      font-size: 13px;
      transition: color 0.2s ease;
    }
    a.footer-link:hover {
      color: var(--primary);
    }
    .footer-bottom {
      padding-top: 25px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-bottom a {
      color: var(--text-muted);
    }
    .footer-bottom a:hover {
      color: var(--secondary);
    }

    /* 移动端与平板响应式适配 */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
      .recommend-cards-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .nav-container {
        height: 64px;
      }
      .main-nav {
        display: none;
      }
      .article-page-main {
        padding-top: 84px;
        padding-bottom: 60px;
      }
      .article-title-h1 {
        font-size: 26px;
        line-height: 1.4;
      }
      .spec-grid {
        grid-template-columns: 1fr;
        gap: 10px;
      }
      .article-prev-next-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .recommend-cards-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .article-actions-bar {
        flex-wrap: wrap;
        gap: 10px;
      }
    }

/* roulang page: category1 */
:root {
      --primary: #ff2a6d;
      --primary-hover: #ff0055;
      --secondary: #05d9e8;
      --accent-purple: #7928ca;
      --bg-dark: #0b0f19;
      --bg-card: #131b2e;
      --bg-card-hover: #1a253e;
      --border-color: rgba(255, 255, 255, 0.08);
      --border-glow: rgba(255, 42, 109, 0.3);
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
      --shadow-primary: 0 12px 25px rgba(255, 42, 109, 0.28);
      --container-max: 1280px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-dark);
      color: var(--text-main);
      line-height: 1.75;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input {
      font-family: inherit;
      border: none;
      outline: none;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* 顶部导航 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(11, 15, 25, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.5px;
    }
    .logo-badge {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--primary), var(--accent-purple));
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(255, 42, 109, 0.4);
    }
    .logo-badge svg {
      width: 20px;
      height: 20px;
      fill: #fff;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: #fff;
    }
    .nav-link.active::after, .nav-link:hover::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .btn-glow {
      background: linear-gradient(135deg, var(--primary), #e60067);
      color: #fff;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      box-shadow: var(--shadow-primary);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(255, 42, 109, 0.4);
      color: #fff;
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--text-main);
      font-weight: 500;
      font-size: 14px;
      padding: 9px 20px;
      border-radius: var(--radius-full);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.3);
      color: #fff;
    }

    /* 板块通用 */
    .section-spacing {
      padding: 80px 0;
      position: relative;
    }
    .section-spacing-alt {
      background: #0e1424;
      padding: 80px 0;
      position: relative;
    }
    .section-heading {
      margin-bottom: 40px;
    }
    .section-heading.center {
      text-align: center;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 4px 12px;
      background: rgba(255, 42, 109, 0.12);
      border: 1px solid rgba(255, 42, 109, 0.3);
      color: var(--primary);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 30px;
      font-weight: 700;
      line-height: 1.35;
      margin-bottom: 14px;
      color: var(--text-main);
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* 1. 分类主题头部看板（轻量化） */
    .category-hero {
      padding-top: 130px;
      padding-bottom: 40px;
      background: radial-gradient(circle at 50% 0%, rgba(255, 42, 109, 0.15) 0%, rgba(121, 40, 202, 0.08) 40%, transparent 75%), #0b0f19;
      border-bottom: 1px solid var(--border-color);
    }
    .breadcrumb-nav {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-dim);
      margin-bottom: 20px;
    }
    .breadcrumb-nav a {
      color: var(--text-muted);
    }
    .breadcrumb-nav a:hover {
      color: var(--primary);
    }
    .breadcrumb-nav .sep {
      opacity: 0.5;
    }
    .breadcrumb-nav .cur {
      color: var(--text-main);
      font-weight: 600;
    }
    .category-header-wrap {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }
    .category-title-box {
      max-width: 820px;
    }
    .category-h1 {
      font-size: 38px;
      font-weight: 800;
      line-height: 1.3;
      color: #fff;
      margin-bottom: 14px;
    }
    .category-h1 span {
      background: linear-gradient(135deg, #fff 10%, var(--secondary) 60%, var(--primary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .category-intro {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .category-stats-pills {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .stat-pill {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 10px 18px;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      min-width: 110px;
    }
    .stat-pill .num {
      font-size: 18px;
      font-weight: 700;
      color: var(--secondary);
      line-height: 1.2;
    }
    .stat-pill .label {
      font-size: 12px;
      color: var(--text-dim);
      margin-top: 2px;
    }

    /* 2. 多维分类属性筛选控制台 */
    .filter-console {
      background: #0f1627;
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0;
    }
    .filter-box {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .filter-row {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-wrap: wrap;
    }
    .filter-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-dim);
      min-width: 60px;
    }
    .filter-items {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-btn {
      padding: 5px 14px;
      font-size: 13px;
      border-radius: var(--radius-full);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-muted);
      border: 1px solid transparent;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .filter-btn:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }
    .filter-btn.active {
      background: var(--primary);
      color: #fff;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(255, 42, 109, 0.35);
    }

    /* 3. 分类主体核心瀑布流列表区 */
    .stream-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stream-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
      position: relative;
    }
    .stream-card:hover {
      transform: translateY(-5px);
      border-color: var(--border-glow);
      box-shadow: 0 14px 30px rgba(255, 42, 109, 0.15);
    }
    .stream-thumb-wrap {
      position: relative;
      aspect-ratio: 16 / 9;
      background: #172138;
      overflow: hidden;
    }
    .stream-thumb-bg {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #1b2640, #0a0e1a);
      position: relative;
    }
    .stream-thumb-bg svg {
      width: 44px;
      height: 44px;
      fill: rgba(255, 255, 255, 0.2);
      transition: transform 0.3s ease, fill 0.3s ease;
    }
    .stream-card:hover .stream-thumb-bg svg {
      transform: scale(1.15);
      fill: var(--primary);
    }
    .badge-resolution {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(4px);
      color: var(--secondary);
      font-size: 11px;
      font-weight: 700;
      padding: 3px 7px;
      border-radius: 4px;
      border: 1px solid rgba(5, 217, 232, 0.3);
    }
    .badge-duration {
      position: absolute;
      bottom: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.8);
      color: #fff;
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .stream-card-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .stream-card-title {
      font-size: 15px;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 8px;
      color: var(--text-main);
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .stream-card-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .stream-meta-row {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-dim);
      padding-top: 10px;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }
    .stream-hot-bar {
      width: 60px;
      height: 4px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 2px;
      overflow: hidden;
      margin-left: 6px;
      display: inline-block;
      vertical-align: middle;
    }
    .stream-hot-fill {
      height: 100%;
      background: linear-gradient(90deg, var(--secondary), var(--primary));
      border-radius: 2px;
    }

    /* 4. 类目 TOP10 热门排行榜横幅区 */
    .rank-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 18px;
    }
    .rank-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 18px 16px;
      position: relative;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .rank-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
    }
    .rank-num-badge {
      font-size: 26px;
      font-weight: 900;
      font-style: italic;
      line-height: 1;
      margin-bottom: 12px;
      display: inline-block;
    }
    .rank-top1 {
      color: #ffd700;
      text-shadow: 0 0 10px rgba(255, 215, 0, 0.4);
    }
    .rank-top2 {
      color: #c0c0c0;
      text-shadow: 0 0 10px rgba(192, 192, 192, 0.4);
    }
    .rank-top3 {
      color: #cd7f32;
      text-shadow: 0 0 10px rgba(205, 127, 50, 0.4);
    }
    .rank-normal {
      color: var(--text-dim);
    }
    .rank-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-stats {
      font-size: 12px;
      color: var(--text-dim);
      display: flex;
      justify-content: space-between;
      margin-top: auto;
      padding-top: 10px;
    }

    /* 5. 专属专题策展与合集推荐板块 */
    .special-curation-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .special-banner-card {
      background: linear-gradient(135deg, #18233c 0%, #0d1322 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 240px;
    }
    .special-banner-card::before {
      content: '';
      position: absolute;
      top: -40px;
      right: -40px;
      width: 160px;
      height: 160px;
      background: radial-gradient(circle, rgba(255, 42, 109, 0.25), transparent 70%);
      pointer-events: none;
    }
    .special-banner-card.alt::before {
      background: radial-gradient(circle, rgba(5, 217, 232, 0.25), transparent 70%);
    }
    .special-tag {
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--secondary);
      text-transform: uppercase;
      margin-bottom: 8px;
    }
    .special-title {
      font-size: 22px;
      font-weight: 800;
      line-height: 1.4;
      margin-bottom: 12px;
      color: #fff;
    }
    .special-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      max-width: 460px;
    }
    .special-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 18px;
    }
    .special-meta {
      font-size: 13px;
      color: var(--text-dim);
    }

    /* CMS 动态内容展区（若有） */
    .cms-posts-wrap {
      margin-top: 20px;
    }
    .cms-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cms-article-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .cms-article-card:hover {
      border-color: var(--border-glow);
      transform: translateY(-4px);
    }
    .cms-article-date {
      font-size: 12px;
      color: var(--secondary);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .cms-article-title {
      font-size: 16px;
      font-weight: 700;
      line-height: 1.5;
      margin-bottom: 10px;
      color: var(--text-main);
    }
    .cms-article-snippet {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .cms-read-link {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .cms-empty {
      padding: 40px;
      text-align: center;
      color: var(--text-dim);
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-color);
    }

    /* 6. 视听播放环境自检与设备指南 */
    .guide-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .guide-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      position: relative;
    }
    .guide-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(255, 42, 109, 0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary);
    }
    .guide-icon svg {
      width: 24px;
      height: 24px;
      fill: currentColor;
    }
    .guide-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
    }
    .guide-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .guide-checklist {
      list-style: none;
      font-size: 13px;
      color: var(--text-dim);
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .guide-checklist li {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .guide-checklist li::before {
      content: '✓';
      color: var(--secondary);
      font-weight: bold;
    }

    /* 7. 分类资源观看指南与说明板块 */
    .watch-guide-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .guide-detail-left h3 {
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
      line-height: 1.4;
    }
    .guide-detail-left p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.85;
      margin-bottom: 20px;
    }
    .guide-specs-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .spec-item {
      display: flex;
      justify-space-between;
      padding: 12px 16px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
    }
    .spec-item span:first-child {
      color: var(--text-dim);
    }
    .spec-item span:last-child {
      color: var(--text-main);
      font-weight: 600;
    }
    .guide-detail-right {
      background: #0b0f19;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .guide-detail-right h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--secondary);
      margin-bottom: 12px;
    }
    .guide-rules {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .guide-rules li {
      position: relative;
      padding-left: 18px;
    }
    .guide-rules li::before {
      content: '•';
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary);
      font-size: 18px;
      line-height: 1;
    }

    /* 8. 分类底部轻量级快速跳转与反馈引导 */
    .category-cta-box {
      background: radial-gradient(circle at 50% 50%, rgba(255, 42, 109, 0.12), transparent 70%), var(--bg-card);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      text-align: center;
      max-width: 880px;
      margin: 0 auto;
    }
    .category-cta-title {
      font-size: 26px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .category-cta-desc {
      font-size: 14px;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto 28px auto;
      line-height: 1.8;
    }
    .category-cta-btns {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* 全局页脚 */
    .site-footer {
      background: #070a12;
      border-top: 1px solid var(--border-color);
      padding: 70px 0 30px 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand {
      max-width: 320px;
    }
    .footer-about {
      font-size: 13px;
      color: var(--text-dim);
      line-height: 1.8;
      margin-top: 18px;
    }
    .footer-col-title {
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 20px;
      letter-spacing: 0.5px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-link {
      font-size: 13px;
      color: var(--text-muted);
      transition: color 0.2s ease;
    }
    a.footer-link:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: var(--text-dim);
    }
    .footer-bottom a {
      color: var(--text-muted);
    }
    .footer-bottom a:hover {
      color: var(--primary);
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .stream-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .rank-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .cms-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .category-header-wrap {
        flex-direction: column;
        align-items: flex-start;
      }
      .category-h1 {
        font-size: 28px;
      }
      .stream-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .rank-grid {
        grid-template-columns: 1fr;
      }
      .special-curation-grid {
        grid-template-columns: 1fr;
      }
      .guide-cards {
        grid-template-columns: 1fr;
      }
      .cms-grid {
        grid-template-columns: 1fr;
      }
      .watch-guide-panel {
        grid-template-columns: 1fr;
      }
      .main-nav {
        display: none;
      }
    }
    @media (max-width: 520px) {
      .stream-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .category-stats-pills {
        width: 100%;
      }
      .stat-pill {
        flex: 1;
        min-width: calc(50% - 6px);
      }
    }