/* roulang page: index */
:root {
      --bg-primary: #070B14;
      --bg-secondary: #0D1527;
      --bg-surface: rgba(17, 28, 53, 0.65);
      --bg-surface-hover: rgba(22, 38, 72, 0.85);
      --accent-cyan: #00E5FF;
      --accent-purple: #7B2CBF;
      --accent-gradient: linear-gradient(135deg, #00E5FF 0%, #7B2CBF 100%);
      --glow-cyan: rgba(0, 229, 255, 0.35);
      --glow-cyan-hover: rgba(0, 229, 255, 0.7);
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --text-dim: #475569;
      --border-light: rgba(255, 255, 255, 0.08);
      --border-highlight: rgba(0, 229, 255, 0.4);
      --border-radius-card: 12px;
      --transition-fast: 0.25s ease;
      --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    body {
      background-color: var(--bg-primary);
      background-image: 
        radial-gradient(circle at 50% 0%, rgba(123, 44, 191, 0.22) 0%, transparent 60%),
        radial-gradient(circle at 80% 25%, rgba(0, 229, 255, 0.12) 0%, transparent 45%),
        linear-gradient(180deg, #070B14 0%, #0D1527 100%);
      background-attachment: fixed;
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
      min-height: 100vh;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition-fast);
    }
    a:hover {
      color: var(--accent-cyan);
    }

    .container-xl {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* 双层收缩导航栏 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      transition: all var(--transition-smooth);
    }

    .header-top-brand {
      background: rgba(7, 11, 20, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      padding: 0.6rem 0;
      transition: all var(--transition-smooth);
      height: 48px;
      display: flex;
      align-items: center;
    }

    .header-bottom-channel {
      background: rgba(13, 21, 39, 0.7);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--border-light);
      padding: 0.65rem 0;
      transition: all var(--transition-smooth);
      height: 52px;
      display: flex;
      align-items: center;
    }

    .site-header.is-scrolled .header-top-brand {
      height: 0;
      padding: 0;
      opacity: 0;
      overflow: hidden;
      border-bottom: none;
    }

    .site-header.is-scrolled .header-bottom-channel {
      background: rgba(7, 11, 20, 0.95);
      border-bottom: 1px solid var(--border-highlight);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
      height: 56px;
    }

    .brand-logo-text {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 0.5px;
      color: #FFFFFF;
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      text-shadow: 0 0 12px var(--glow-cyan);
    }
    .brand-logo-text i {
      color: var(--accent-cyan);
      font-size: 1.4rem;
    }

    .nav-sys-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.82rem;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.05);
      padding: 0.25rem 0.75rem;
      border-radius: 20px;
      border: 1px solid var(--border-light);
    }
    .status-dot {
      width: 7px;
      height: 7px;
      background: #10B981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10B981;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 1.8rem;
      margin: 0;
    }
    .nav-links li a {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
      position: relative;
      padding: 0.35rem 0;
      display: inline-block;
    }
    .nav-links li.active a,
    .nav-links li a:hover {
      color: #FFFFFF;
    }
    .nav-links li.active a::after,
    .nav-links li a:hover::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-gradient);
      box-shadow: 0 0 8px var(--accent-cyan);
      border-radius: 2px;
    }

    .nav-compact-logo {
      display: none;
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-right: 1.5rem;
      align-items: center;
      gap: 0.4rem;
    }
    .site-header.is-scrolled .nav-compact-logo {
      display: inline-flex;
    }

    /* 移动端汉堡与抽屉 */
    .mobile-nav-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border-light);
      color: var(--text-main);
      padding: 0.4rem 0.7rem;
      border-radius: 6px;
      cursor: pointer;
      font-size: 1.2rem;
    }
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 52px;
      left: 0;
      width: 100%;
      height: calc(100vh - 52px);
      background: rgba(7, 11, 20, 0.98);
      backdrop-filter: blur(20px);
      padding: 2rem 1.5rem;
      flex-direction: column;
      gap: 1.5rem;
      z-index: 999;
      border-top: 1px solid var(--border-light);
    }
    .mobile-drawer.is-open {
      display: flex;
    }
    .mobile-drawer a {
      font-size: 1.2rem;
      color: var(--text-main);
      padding: 0.75rem 0;
      border-bottom: 1px solid var(--border-light);
    }

    /* 发光按钮体系 */
    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.6rem;
      background: var(--accent-gradient);
      color: #040812;
      font-weight: 700;
      font-size: 0.95rem;
      padding: 0.75rem 1.6rem;
      border-radius: 8px;
      border: none;
      box-shadow: 0 0 16px var(--glow-cyan);
      cursor: pointer;
      transition: all var(--transition-fast);
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .btn-glow:hover {
      color: #02040A;
      box-shadow: 0 0 26px var(--glow-cyan-hover);
      transform: translateY(-2px);
    }
    .btn-glow-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.6rem;
      background: rgba(255, 255, 255, 0.04);
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.75rem 1.6rem;
      border-radius: 8px;
      border: 1px solid var(--border-light);
      cursor: pointer;
      transition: all var(--transition-fast);
      backdrop-filter: blur(8px);
    }
    .btn-glow-outline:hover {
      border-color: var(--accent-cyan);
      color: #FFFFFF;
      box-shadow: 0 0 15px rgba(0, 229, 255, 0.25);
      transform: translateY(-2px);
    }

    /* 玻璃拟态卡片基础样式 */
    .glass-card {
      background: var(--bg-surface);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-light);
      border-radius: var(--border-radius-card);
      padding: 1.75rem;
      transition: all var(--transition-fast);
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      background: var(--bg-surface-hover);
      border-color: var(--border-highlight);
      box-shadow: 0 10px 30px rgba(0, 229, 255, 0.15);
      transform: translateY(-3px);
    }

    /* 胶卷微切角与放映标号印章 */
    .film-tag {
      font-size: 0.72rem;
      font-family: monospace;
      padding: 0.2rem 0.6rem;
      border-radius: 4px;
      background: rgba(0, 229, 255, 0.12);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 229, 255, 0.3);
      display: inline-block;
      letter-spacing: 0.5px;
    }
    .film-tag-purple {
      background: rgba(123, 44, 191, 0.2);
      color: #D8B4FE;
      border-color: rgba(123, 44, 191, 0.4);
    }

    /* 分隔虚线 */
    .film-divider {
      border: 0;
      border-top: 1px dashed rgba(255, 255, 255, 0.12);
      margin: 4rem 0;
      position: relative;
    }

    /* 板块标题结构 */
    .section-header {
      margin-bottom: 2.8rem;
    }
    .section-subtitle {
      font-size: 0.85rem;
      color: var(--accent-cyan);
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      display: block;
      margin-bottom: 0.5rem;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1.3;
      margin-bottom: 0.75rem;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 760px;
      line-height: 1.7;
    }

    /* 板块1：Hero 首屏价值主张 */
    .hero-section {
      padding-top: 140px;
      padding-bottom: 70px;
      position: relative;
    }
    .hero-film-beam {
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 90%;
      height: 480px;
      background: radial-gradient(ellipse at top, rgba(0, 229, 255, 0.15), transparent 70%);
      pointer-events: none;
      z-index: 0;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: #FFFFFF;
      margin-bottom: 1.25rem;
      text-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
    }
    .hero-h1 span {
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 860px;
      margin-bottom: 2rem;
    }
    .hero-specs-row {
      display: flex;
      flex-wrap: wrap;
      gap: 1.5rem;
      margin-bottom: 2.2rem;
    }
    .hero-spec-item {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      background: rgba(255, 255, 255, 0.03);
      padding: 0.6rem 1.1rem;
      border-radius: 8px;
      border: 1px solid var(--border-light);
    }
    .hero-spec-item i {
      color: var(--accent-cyan);
      font-size: 1.1rem;
    }
    .hero-spec-item span {
      font-size: 0.88rem;
      color: var(--text-main);
    }
    .hero-action-group {
      display: flex;
      flex-wrap: wrap;
      gap: 1.2rem;
      align-items: center;
    }

    /* 板块2：功能分组展台 */
    .region-card {
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .region-card-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 1rem;
    }
    .region-card-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: #FFFFFF;
    }
    .region-card-p {
      font-size: 0.92rem;
      color: var(--text-muted);
      margin-bottom: 1.25rem;
      line-height: 1.65;
    }
    .region-tech-list {
      list-style: none;
      margin: 0 0 1.25rem 0;
      padding: 0;
    }
    .region-tech-list li {
      font-size: 0.85rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 0.4rem;
    }
    .region-tech-list li i {
      color: var(--accent-cyan);
      font-size: 0.75rem;
    }

    /* 板块3：全天候放映场景演示 */
    .scene-box {
      border-left: 3px solid var(--accent-cyan);
      padding-left: 1.25rem;
      margin-bottom: 1.5rem;
    }
    .scene-box h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 0.35rem;
    }
    .scene-box p {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* 板块4：中央播控与选区沙盒 */
    .sandbox-panel {
      background: #04070F;
      border: 1px solid var(--border-highlight);
      border-radius: var(--border-radius-card);
      padding: 1.5rem;
      box-shadow: inset 0 0 40px rgba(0, 229, 255, 0.05);
    }
    .sandbox-hud-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 1px solid var(--border-light);
      padding-bottom: 0.75rem;
      margin-bottom: 1.25rem;
    }
    .hud-chip {
      font-family: monospace;
      font-size: 0.8rem;
      color: var(--accent-cyan);
      background: rgba(0, 229, 255, 0.08);
      padding: 0.25rem 0.6rem;
      border-radius: 4px;
    }
    .sandbox-sliders-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.25rem;
      margin-bottom: 1.5rem;
    }
    .hud-metric-box {
      background: rgba(17, 28, 53, 0.5);
      border: 1px solid var(--border-light);
      padding: 1rem;
      border-radius: 8px;
    }
    .hud-metric-label {
      font-size: 0.8rem;
      color: var(--text-dim);
      display: block;
      margin-bottom: 0.3rem;
    }
    .hud-metric-val {
      font-size: 1.25rem;
      font-weight: 700;
      color: #FFFFFF;
      font-family: monospace;
    }

    /* 板块5：流媒体性能看板 */
    .metrics-bar {
      background: linear-gradient(90deg, rgba(17, 28, 53, 0.8) 0%, rgba(13, 21, 39, 0.9) 100%);
      border: 1px solid var(--border-light);
      border-radius: var(--border-radius-card);
      padding: 2.2rem 1.5rem;
      margin: 1rem 0;
    }
    .counter-val {
      font-size: 2.3rem;
      font-weight: 800;
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-family: monospace;
      line-height: 1.1;
      margin-bottom: 0.3rem;
    }
    .counter-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 板块6：服务规格与档期套餐 */
    .tier-card {
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }
    .tier-card.featured {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 25px rgba(0, 229, 255, 0.25);
    }
    .tier-featured-tag {
      position: absolute;
      top: 14px;
      right: 14px;
      background: var(--accent-gradient);
      color: #040812;
      font-size: 0.7rem;
      font-weight: 800;
      padding: 0.2rem 0.6rem;
      border-radius: 4px;
      text-transform: uppercase;
    }
    .tier-price {
      font-size: 2rem;
      font-weight: 800;
      color: #FFFFFF;
      margin: 1rem 0;
    }
    .tier-price span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 400;
    }

    /* 板块7：短评交流墙 */
    .review-bubble {
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-header {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 0.8rem;
    }
    .review-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: rgba(0, 229, 255, 0.15);
      border: 1px solid var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-weight: 700;
    }
    .review-user-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #FFFFFF;
    }
    .review-meta {
      font-size: 0.78rem;
      color: var(--text-dim);
    }
    .star-rating {
      color: #F59E0B;
      font-size: 0.8rem;
      margin-bottom: 0.6rem;
    }

    /* 板块8：深度口碑多维雷达 */
    .radar-stat-box {
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      padding: 1.25rem;
      margin-bottom: 1rem;
    }
    .progress-track {
      height: 6px;
      background: rgba(255, 255, 255, 0.08);
      border-radius: 3px;
      overflow: hidden;
      margin-top: 0.5rem;
    }
    .progress-fill {
      height: 100%;
      background: var(--accent-gradient);
      border-radius: 3px;
    }

    /* 板块9：放映票根资讯列表 */
    .news-ticket-row {
      display: flex;
      border: 1px dashed rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      background: rgba(17, 28, 53, 0.4);
      margin-bottom: 1.2rem;
      overflow: hidden;
      transition: all var(--transition-fast);
    }
    .news-ticket-row:hover {
      border-color: var(--accent-cyan);
      background: rgba(17, 28, 53, 0.7);
    }
    .ticket-stub {
      width: 100px;
      background: rgba(0, 0, 0, 0.35);
      border-right: 1px dashed rgba(255, 255, 255, 0.15);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 1rem;
      text-align: center;
    }
    .ticket-main {
      padding: 1.25rem;
      flex: 1;
    }

    /* 板块10：智能选区与分类指引矩阵 */
    .category-matrix-item {
      display: block;
      background: rgba(17, 28, 53, 0.5);
      border: 1px solid var(--border-light);
      border-radius: 10px;
      padding: 1.5rem;
      transition: all var(--transition-fast);
      height: 100%;
    }
    .category-matrix-item:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
      transform: translateY(-2px);
    }

    /* 板块11：跨平台兼容展台 */
    .os-badge-item {
      text-align: center;
      padding: 1.5rem 1rem;
      background: rgba(255, 255, 255, 0.02);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      transition: all var(--transition-fast);
    }
    .os-badge-item:hover {
      border-color: var(--accent-cyan);
      background: rgba(0, 229, 255, 0.04);
    }
    .os-badge-item i {
      font-size: 2.2rem;
      color: var(--accent-cyan);
      margin-bottom: 0.6rem;
      display: inline-block;
    }

    /* 板块12：FAQ 手风琴 */
    .faq-accordion-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-light);
      border-radius: 8px;
      margin-bottom: 1rem;
      overflow: hidden;
    }
    .faq-trigger {
      padding: 1.25rem 1.5rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      font-size: 1.05rem;
      color: #FFFFFF;
      transition: background var(--transition-fast);
      user-select: none;
    }
    .faq-trigger:hover {
      background: rgba(255, 255, 255, 0.04);
      color: var(--accent-cyan);
    }
    .faq-trigger i {
      font-size: 0.9rem;
      transition: transform var(--transition-fast);
      color: var(--accent-cyan);
    }
    .faq-accordion-item.is-active .faq-trigger i {
      transform: rotate(180deg);
    }
    .faq-content {
      display: none;
      padding: 0 1.5rem 1.25rem 1.5rem;
      color: var(--text-muted);
      font-size: 0.94rem;
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }
    .faq-accordion-item.is-active .faq-content {
      display: block;
    }

    /* 板块13：极速接入开通 CTA */
    .cta-banner-wrapper {
      position: relative;
      border-radius: 16px;
      padding: 3.5rem 2rem;
      text-align: center;
      background: radial-gradient(circle at 50% 50%, rgba(123, 44, 191, 0.35) 0%, rgba(13, 21, 39, 0.95) 85%);
      border: 1px solid var(--accent-cyan);
      box-shadow: 0 0 45px rgba(0, 229, 255, 0.2);
      overflow: hidden;
    }
    .cta-banner-wrapper::before {
      content: "";
      position: absolute;
      top: -50%;
      left: -50%;
      width: 200%;
      height: 200%;
      background: radial-gradient(circle at center, rgba(0, 229, 255, 0.08) 0%, transparent 60%);
      pointer-events: none;
    }

    /* 统一页脚 */
    .site-footer {
      background: #04070F;
      border-top: 1px solid var(--border-light);
      padding: 4.5rem 0 2rem 0;
      margin-top: 5rem;
      color: var(--text-muted);
      font-size: 0.9rem;
    }
    .footer-col-title {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
      letter-spacing: 0.5px;
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 0.65rem;
    }
    .footer-links li a {
      color: var(--text-muted);
    }
    .footer-links li a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom-bar {
      border-top: 1px solid var(--border-light);
      margin-top: 3.5rem;
      padding-top: 1.5rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: var(--text-dim);
    }
    .back-to-top-btn {
      width: 38px;
      height: 38px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--border-light);
      color: var(--accent-cyan);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all var(--transition-fast);
    }
    .back-to-top-btn:hover {
      background: var(--accent-cyan);
      color: #040812;
      box-shadow: 0 0 12px var(--glow-cyan);
    }

    /* 响应式适配 */
    @media (max-width: 1023px) {
      .header-top-brand {
        display: none;
      }
      .header-bottom-channel {
        height: 60px;
      }
      .nav-links {
        display: none;
      }
      .mobile-nav-toggle {
        display: inline-block;
      }
      .hero-section {
        padding-top: 100px;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
    }
    @media (max-width: 639px) {
      .hero-h1 {
        font-size: 1.75rem;
      }
      .section-title {
        font-size: 1.5rem;
      }
      .news-ticket-row {
        flex-direction: column;
      }
      .ticket-stub {
        width: 100%;
        border-right: none;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
        flex-direction: row;
        justify-content: space-between;
      }
      .footer-bottom-bar {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
      }
    }

/* roulang page: category1 */
:root {
            --bg-primary: #070B14;
            --bg-secondary: #0D1527;
            --bg-surface: rgba(17, 28, 53, 0.65);
            --bg-surface-hover: rgba(22, 38, 72, 0.85);
            --accent-cyan: #00E5FF;
            --accent-purple: #7B2CBF;
            --accent-gradient: linear-gradient(135deg, #00E5FF 0%, #7B2CBF 100%);
            --glow-cyan: rgba(0, 229, 255, 0.35);
            --glow-cyan-hover: rgba(0, 229, 255, 0.7);
            --text-main: #F1F5F9;
            --text-muted: #94A3B8;
            --text-dim: #475569;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-highlight: rgba(0, 229, 255, 0.4);
            --border-radius-card: 12px;
            --transition-fast: 0.25s ease;
            --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        body {
            background-color: var(--bg-primary);
            background-image: 
                radial-gradient(circle at 50% 0%, rgba(123, 44, 191, 0.22) 0%, transparent 60%),
                radial-gradient(circle at 80% 25%, rgba(0, 229, 255, 0.12) 0%, transparent 45%),
                linear-gradient(180deg, #070B14 0%, #0D1527 100%);
            background-attachment: fixed;
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

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

        a:hover {
            color: var(--accent-cyan);
        }

        .container-xl {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        /* 滚动收缩双层导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: all var(--transition-smooth);
        }

        .header-top-brand {
            background: rgba(7, 11, 20, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            padding: 0.6rem 0;
            transition: all var(--transition-smooth);
            height: 48px;
            display: flex;
            align-items: center;
        }

        .header-bottom-channel {
            background: rgba(13, 21, 39, 0.7);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            padding: 0.65rem 0;
            transition: all var(--transition-smooth);
            height: 52px;
            display: flex;
            align-items: center;
        }

        .site-header.is-scrolled .header-top-brand {
            height: 0;
            padding: 0;
            opacity: 0;
            overflow: hidden;
            border-bottom: none;
        }

        .site-header.is-scrolled .header-bottom-channel {
            background: rgba(7, 11, 20, 0.95);
            border-bottom: 1px solid var(--border-highlight);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
            height: 56px;
        }

        .brand-logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #FFFFFF;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            text-shadow: 0 0 12px var(--glow-cyan);
        }

        .brand-logo-text i {
            color: var(--accent-cyan);
            font-size: 1.4rem;
        }

        .nav-sys-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            border: 1px solid var(--border-light);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10B981;
            box-shadow: 0 0 8px #10B981;
            display: inline-block;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 1.8rem;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
            position: relative;
            padding: 0.35rem 0;
            display: inline-block;
        }

        .nav-links li.active a,
        .nav-links li a:hover {
            color: #FFFFFF;
        }

        .nav-links li.active a::after,
        .nav-links li a:hover::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent-gradient);
            box-shadow: 0 0 8px var(--accent-cyan);
            border-radius: 2px;
        }

        .nav-compact-logo {
            display: none;
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-right: 1.5rem;
            align-items: center;
            gap: 0.4rem;
        }

        .site-header.is-scrolled .nav-compact-logo {
            display: inline-flex;
        }

        .mobile-nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-main);
            padding: 0.4rem 0.7rem;
            border-radius: 6px;
            cursor: pointer;
            font-size: 1.2rem;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 52px;
            left: 0;
            width: 100%;
            height: calc(100vh - 52px);
            background: rgba(7, 11, 20, 0.98);
            backdrop-filter: blur(20px);
            padding: 2rem 1.5rem;
            flex-direction: column;
            gap: 1.5rem;
            z-index: 999;
            border-top: 1px solid var(--border-light);
        }

        .mobile-drawer.is-open {
            display: flex;
        }

        .mobile-drawer a {
            font-size: 1.1rem;
            color: var(--text-main);
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-light);
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            background: var(--accent-gradient);
            color: #040812;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 0.75rem 1.6rem;
            border-radius: 8px;
            border: none;
            box-shadow: 0 0 16px var(--glow-cyan);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-glow:hover {
            color: #02040A;
            box-shadow: 0 0 26px var(--glow-cyan-hover);
            transform: translateY(-2px);
        }

        .btn-glow-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-main);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.75rem 1.6rem;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .btn-glow-outline:hover {
            border-color: var(--accent-cyan);
            background: rgba(0, 229, 255, 0.08);
            color: #FFFFFF;
        }

        /* 胶卷与卡片装饰印记 */
        .film-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(0, 229, 255, 0.12);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 229, 255, 0.3);
            border-radius: 4px;
            padding: 0.25rem 0.65rem;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .film-tag-purple {
            background: rgba(123, 44, 191, 0.15);
            color: #D8B4FE;
            border-color: rgba(123, 44, 191, 0.4);
        }

        /* 分类页特有模块样式 */
        .main-category-content {
            padding-top: 130px;
            padding-bottom: 5rem;
        }

        /* 板块1：分类紧凑导引头 */
        .cat-guide-header {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
        }

        .cat-guide-header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent-gradient);
            box-shadow: 0 0 12px var(--accent-cyan);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0.8rem;
        }

        .cat-title-h1 {
            font-size: 1.85rem;
            font-weight: 800;
            color: #FFFFFF;
            margin: 0 0 0.6rem 0;
            letter-spacing: -0.5px;
        }

        .cat-meta-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .cat-meta-strip span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        /* 板块2：多维动态筛选过滤栏 */
        .filter-glass-panel {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 1.4rem 1.6rem;
            margin-bottom: 2.5rem;
        }

        .filter-row {
            display: flex;
            align-items: center;
            padding: 0.6rem 0;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
        }

        .filter-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .filter-label {
            width: 90px;
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.4rem;
            flex-shrink: 0;
        }

        .filter-options {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .filter-chip {
            font-size: 0.82rem;
            padding: 0.35rem 0.85rem;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .filter-chip.active,
        .filter-chip:hover {
            background: rgba(0, 229, 255, 0.12);
            border-color: var(--accent-cyan);
            color: #FFFFFF;
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
        }

        /* 板块3：网格列表主体 */
        .grid-post-card {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 1.4rem;
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
            transition: all var(--transition-smooth);
            overflow: hidden;
        }

        .grid-post-card:hover {
            border-color: var(--accent-cyan);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.6), 0 0 18px rgba(0, 229, 255, 0.25);
            transform: translateY(-4px);
        }

        .post-card-visual {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: #0B1120;
            border-radius: 8px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, 0.05);
            margin-bottom: 1.2rem;
        }

        .post-card-visual-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0.45;
            transition: transform 0.5s ease;
        }

        .grid-post-card:hover .post-card-visual-bg {
            transform: scale(1.06);
            opacity: 0.65;
        }

        .screen-stamp {
            position: absolute;
            top: 10px;
            left: 10px;
            z-index: 2;
        }

        .codec-badge {
            position: absolute;
            bottom: 10px;
            right: 10px;
            z-index: 2;
            font-size: 0.7rem;
            background: rgba(0, 0, 0, 0.75);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            border: 1px solid var(--border-light);
            color: var(--accent-cyan);
        }

        .post-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .post-card-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 1.2rem;
            flex-grow: 1;
        }

        .post-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 0.9rem;
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        /* 板块4：页码控制器 */
        .pagination-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            margin: 3.5rem 0 4.5rem;
        }

        .page-ctrl-btn {
            min-width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-surface);
            border: 1px solid var(--border-light);
            border-radius: 8px;
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-fast);
            padding: 0 0.8rem;
        }

        .page-ctrl-btn:hover {
            border-color: var(--accent-cyan);
            color: #FFFFFF;
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }

        .page-ctrl-btn.active {
            background: var(--accent-gradient);
            border-color: transparent;
            color: #040812;
            box-shadow: 0 0 15px var(--glow-cyan);
        }

        /* 板块5：技术对比矩阵表 */
        .spec-table-container {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            overflow: hidden;
            margin-bottom: 4.5rem;
        }

        .section-subheading {
            padding: 1.5rem 1.8rem;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .section-subheading h2 {
            font-size: 1.35rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .matrix-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            margin: 0;
        }

        .matrix-table th {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--border-light);
        }

        .matrix-table td {
            padding: 1.1rem 1.5rem;
            font-size: 0.88rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            color: var(--text-main);
        }

        .matrix-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        /* 板块6：热度风向标榜单 */
        .rank-card {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 1.2rem;
            position: relative;
            transition: all var(--transition-fast);
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }

        .rank-card:hover {
            border-color: var(--border-highlight);
            transform: translateY(-2px);
        }

        .rank-num {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text-dim);
            font-style: italic;
            width: 32px;
            text-align: center;
        }

        .rank-card:nth-child(1) .rank-num {
            color: var(--accent-cyan);
            text-shadow: 0 0 10px var(--glow-cyan);
        }

        .rank-card:nth-child(2) .rank-num {
            color: #A855F7;
        }

        .rank-card:nth-child(3) .rank-num {
            color: #38BDF8;
        }

        .rank-content h3 {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 0.35rem;
        }

        .rank-content p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.4;
        }

        /* 板块7：分类 FAQ 模块 */
        .cat-faq-item {
            background: var(--bg-surface);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--border-radius-card);
            padding: 1.3rem 1.6rem;
            margin-bottom: 1.2rem;
            transition: all var(--transition-fast);
        }

        .cat-faq-item:hover {
            border-color: var(--border-highlight);
        }

        .cat-faq-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .cat-faq-item h3 i {
            color: var(--accent-cyan);
            font-size: 0.95rem;
        }

        .cat-faq-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* 页脚体系 */
        .site-footer {
            background: #05080E;
            border-top: 1px solid var(--border-light);
            padding: 4.5rem 0 2rem;
            position: relative;
        }

        .footer-col-title {
            font-size: 1rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.5rem;
        }

        .footer-col-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent-cyan);
        }

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

        .footer-links li {
            margin-bottom: 0.7rem;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom-bar {
            margin-top: 3.5rem;
            padding-top: 1.8rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        /* 响应式断点控制 */
        @media (max-width: 1023px) {
            .nav-links {
                gap: 1.1rem;
            }
        }

        @media (max-width: 767px) {
            .cat-meta-strip {
                gap: 0.8rem;
            }
            .filter-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .matrix-table th, .matrix-table td {
                padding: 0.8rem 1rem;
                font-size: 0.8rem;
            }
            .footer-bottom-bar {
                flex-direction: column;
                text-align: center;
            }
            .mobile-nav-toggle {
                display: inline-block;
            }
            .nav-links {
                display: none;
            }
        }