/* roulang page: index */
:root {
      --bg-primary: #0F0F10;
      --bg-secondary: #121214;
      --bg-section: #161618;
      --bg-card: #1A1A1C;
      --accent: #E8A33D;
      --accent-hover: #F0B253;
      --wine: #8E3B46;
      --text-primary: #F5F1E8;
      --text-secondary: #B8B2A7;
      --text-muted: #7C766C;
      --border: rgba(255, 255, 255, .08);
      --border-hover: rgba(232, 163, 61, .35);
      --radius-btn: 8px;
      --radius-card: 12px;
      --radius-img: 16px;
      --radius-badge: 999px;
      --shadow-card: 0 4px 24px rgba(0, 0, 0, .35);
      --transition: .25s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.8;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
      font-family: inherit;
    }

    .container-custom {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ---- 顶部信息条 ---- */
    .topbar {
      background: #0A0A0B;
      height: 36px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid rgba(255, 255, 255, .04);
    }

    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
    }

    .topbar-domain {
      font-size: 13px;
      color: rgba(255, 255, 255, .42);
      letter-spacing: .3px;
    }

    .topbar-btn {
      height: 26px;
      line-height: 24px;
      padding: 0 12px;
      border-radius: 6px;
      border: 1px solid var(--accent);
      color: var(--accent);
      background: transparent;
      font-size: 12px;
      font-weight: 500;
      transition: all var(--transition);
    }

    .topbar-btn:hover {
      background: var(--accent);
      color: #0F0F10;
    }

    /* ---- 主导航 ---- */
    .main-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(15, 15, 16, .88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

    .main-header .navbar {
      padding-top: 0;
      padding-bottom: 0;
      min-height: 68px;
      background: transparent;
    }

    .brand-logo {
      font-size: 22px;
      font-weight: 700;
      letter-spacing: .5px;
      color: var(--text-primary);
      display: flex;
      align-items: center;
      gap: 2px;
    }

    .brand-logo em {
      font-style: normal;
      color: var(--accent);
    }

    .navbar-nav {
      gap: 6px;
      margin-left: auto;
    }

    .nav-link-custom {
      color: var(--text-secondary);
      font-size: 15px;
      font-weight: 500;
      padding: 10px 14px !important;
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      transition: color var(--transition);
    }

    .nav-link-custom::after {
      content: '';
      position: absolute;
      bottom: 8px;
      left: 14px;
      width: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      transition: width .3s ease;
    }

    .nav-link-custom:hover {
      color: var(--accent);
    }

    .nav-link-custom:hover::after {
      width: calc(100% - 28px);
    }

    .nav-link-custom.active {
      color: var(--accent);
    }

    .nav-link-custom.active::before {
      content: '';
      display: inline-block;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--accent);
      margin-right: 7px;
      vertical-align: middle;
    }

    .nav-cta-btn {
      height: 42px;
      padding: 0 20px;
      border-radius: var(--radius-btn);
      background: var(--accent);
      color: #0F0F10;
      border: none;
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      transition: all var(--transition);
      margin-left: 12px;
      white-space: nowrap;
    }

    .nav-cta-btn:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 16px rgba(232, 163, 61, .25);
      color: #0F0F10;
    }

    .navbar-toggler {
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 8px 12px;
      background: transparent;
      color: var(--text-primary);
      font-size: 20px;
      min-height: 44px;
      min-width: 44px;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 3px rgba(232, 163, 61, .25);
    }

    @media (max-width: 991.98px) {
      .navbar-nav {
        gap: 0;
        padding: 16px 0;
        background: rgba(15, 15, 16, .98);
        border-radius: 12px;
        margin-top: 10px;
        border: 1px solid var(--border);
        padding: 12px;
      }

      .nav-link-custom {
        justify-content: center;
        width: 100%;
        padding: 14px 16px !important;
      }

      .nav-link-custom::after {
        display: none;
      }

      .nav-cta-btn {
        margin: 10px auto 4px;
        display: flex;
        justify-content: center;
        width: 100%;
      }
    }

    /* ---- 按钮 ---- */
    .btn-brand-primary {
      height: 44px;
      padding: 0 28px;
      border-radius: var(--radius-btn);
      background: var(--accent);
      color: #0F0F10;
      border: none;
      font-size: 16px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all var(--transition);
    }

    .btn-brand-primary:hover {
      background: var(--accent-hover);
      color: #0F0F10;
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(232, 163, 61, .3);
    }

    .btn-brand-outline {
      height: 44px;
      padding: 0 28px;
      border-radius: var(--radius-btn);
      background: transparent;
      color: var(--text-primary);
      border: 1px solid rgba(232, 163, 61, .6);
      font-size: 16px;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all var(--transition);
    }

    .btn-brand-outline:hover {
      border-color: var(--accent);
      color: var(--accent);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(232, 163, 61, .12);
    }

    .btn:focus,
    .btn-brand-primary:focus,
    .btn-brand-outline:focus {
      outline: none;
      box-shadow: 0 0 0 3px rgba(232, 163, 61, .3);
    }

    /* ---- 徽章 ---- */
    .badge-custom {
      display: inline-flex;
      align-items: center;
      height: 22px;
      padding: 0 14px;
      border-radius: var(--radius-badge);
      background: transparent;
      color: var(--accent);
      border: 1px solid rgba(232, 163, 61, .45);
      font-size: 12px;
      font-weight: 500;
      letter-spacing: .3px;
      white-space: nowrap;
    }

    .badge-scene {
      display: inline-flex;
      align-items: center;
      height: 30px;
      padding: 0 20px;
      border-radius: var(--radius-badge);
      background: rgba(232, 163, 61, .08);
      color: var(--accent);
      border: 1px solid rgba(232, 163, 61, .3);
      font-size: 14px;
      margin-right: 8px;
      margin-bottom: 8px;
      transition: all var(--transition);
    }

    .badge-scene:hover {
      background: rgba(232, 163, 61, .18);
      border-color: var(--accent);
    }

    .badge-type {
      display: inline-flex;
      align-items: center;
      height: 24px;
      padding: 0 14px;
      border-radius: var(--radius-badge);
      background: rgba(142, 59, 70, .25);
      color: #DBA0A6;
      border: 1px solid rgba(142, 59, 70, .5);
      font-size: 12px;
      margin-right: 8px;
    }

    /* ---- Hero ---- */
    .hero-section {
      position: relative;
      min-height: calc(100vh - 104px);
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background: #0A0A0B;
      padding: 96px 0 48px;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.jpg');
      background-size: cover;
      background-position: center;
      filter: brightness(.42);
      transform: scale(1.02);
    }

    .hero-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at center, rgba(15, 15, 16, .25) 0%, rgba(15, 15, 16, .78) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 860px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .hero-eyebrow {
      font-size: 14px;
      letter-spacing: 3px;
      color: var(--accent);
      margin-bottom: 16px;
      font-weight: 500;
    }

    .hero-title {
      font-size: 40px;
      line-height: 1.3;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 24px;
    }

    .hero-title .highlight {
      color: var(--accent);
    }

    .hero-subtitle {
      font-size: 17px;
      color: var(--text-secondary);
      max-width: 640px;
      margin: 0 auto 36px;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
      margin-bottom: 64px;
    }

    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 48px;
      flex-wrap: wrap;
      border-top: 1px solid rgba(255, 255, 255, .08);
      padding-top: 32px;
      margin-top: 16px;
    }

    .stat-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      min-width: 120px;
    }

    .stat-icon {
      font-size: 22px;
      color: var(--accent);
      opacity: .9;
    }

    .stat-text {
      font-size: 15px;
      font-weight: 600;
      color: var(--accent);
      letter-spacing: 1px;
    }

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

    @media (max-width: 575.98px) {
      .hero-section {
        min-height: auto;
        padding: 72px 0 40px;
      }

      .hero-title {
        font-size: 32px;
      }

      .hero-subtitle {
        font-size: 15px;
      }

      .hero-actions {
        flex-direction: column;
        align-items: center;
      }

      .hero-actions .btn {
        width: 100%;
        max-width: 280px;
      }

      .hero-stats {
        gap: 24px;
        padding-top: 24px;
      }
    }

    /* ---- 通用板块 ---- */
    .section-padding {
      padding: 96px 0;
    }

    .section-padding-sm {
      padding: 64px 0;
    }

    .section-header {
      max-width: 680px;
      margin-bottom: 48px;
    }

    .section-header.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 2px;
    }

    .section-label .line {
      width: 24px;
      height: 4px;
      background: var(--accent);
      border-radius: 2px;
      display: inline-block;
    }

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

    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.9;
      margin-bottom: 0;
    }

    @media (max-width: 767.98px) {
      .section-padding {
        padding: 64px 0;
      }

      .section-title {
        font-size: 26px;
      }
    }

    /* ---- 功能分组 ---- */
    .feature-section {
      background: var(--bg-primary);
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 28px;
      border: 1px solid rgba(255, 255, 255, .04);
      box-shadow: var(--shadow-card);
      display: flex;
      align-items: center;
      gap: 20px;
      height: 100%;
      transition: border-color var(--transition), box-shadow var(--transition);
      overflow: hidden;
    }

    .feature-card:hover {
      border-color: var(--border-hover);
      box-shadow: 0 4px 24px rgba(0, 0, 0, .35), 0 0 0 1px rgba(232, 163, 61, .25);
    }

    .feature-text {
      flex: 1;
    }

    .feature-num {
      font-size: 14px;
      font-weight: 400;
      color: var(--accent);
      letter-spacing: 2px;
      display: block;
      margin-bottom: 6px;
      opacity: .8;
    }

    .feature-text h3 {
      font-size: 22px;
      line-height: 1.3;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 8px;
    }

    .feature-text p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 0;
    }

    .feature-thumb {
      flex-shrink: 0;
      width: 120px;
      border-radius: 10px;
      overflow: hidden;
      position: relative;
    }

    .feature-thumb img {
      width: 100%;
      height: 90px;
      object-fit: cover;
      border-radius: 10px;
      transition: transform .4s ease;
    }

    .feature-card:hover .feature-thumb img {
      transform: scale(1.05);
    }

    @media (max-width: 575.98px) {
      .feature-card {
        flex-direction: column;
        align-items: flex-start;
      }

      .feature-thumb {
        width: 100%;
      }

      .feature-thumb img {
        height: 180px;
        width: 100%;
      }
    }

    /* ---- 使用场景 ---- */
    .scene-section {
      background: var(--bg-section);
    }

    .scene-text {
      padding-right: 24px;
    }

    .scene-text .section-title {
      margin-bottom: 20px;
    }

    .scene-text .section-desc {
      margin-bottom: 28px;
    }

    .scene-image-wrap {
      border-radius: var(--radius-img);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .scene-image-wrap img {
      width: 100%;
      height: 100%;
      min-height: 280px;
      object-fit: cover;
    }

    .scene-image-wrap::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(15, 15, 16, .45) 100%);
      border-radius: var(--radius-img);
      pointer-events: none;
    }

    /* ---- 成功案例 ---- */
    .case-section {
      background: var(--bg-primary);
    }

    .case-card {
      position: relative;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      min-height: 260px;
      display: flex;
      align-items: flex-end;
      transition: box-shadow var(--transition);
    }

    .case-card:hover {
      box-shadow: 0 0 0 1px rgba(232, 163, 61, .25), 0 8px 32px rgba(0, 0, 0, .45);
    }

    .case-bg {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      filter: blur(2px) brightness(.45);
      transform: scale(1.06);
    }

    .case-content {
      position: relative;
      z-index: 1;
      padding: 28px;
      width: 100%;
      background: linear-gradient(180deg, transparent, rgba(15, 15, 16, .7));
    }

    .case-avatar {
      font-size: 14px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .case-avatar::before {
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
    }

    .case-content blockquote {
      font-size: 16px;
      color: var(--text-primary);
      line-height: 1.8;
      margin: 0 0 14px;
      font-style: normal;
    }

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

    /* ---- 价格 ---- */
    .pricing-section {
      background: var(--bg-secondary);
    }

    .price-card {
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 36px 32px;
      border: 1px solid rgba(255, 255, 255, .06);
      box-shadow: var(--shadow-card);
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
      position: relative;
    }

    .price-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 32px rgba(0, 0, 0, .45), 0 0 0 1px rgba(232, 163, 61, .15);
    }

    .price-card.featured {
      border-color: var(--accent);
      box-shadow: 0 0 0 1px rgba(232, 163, 61, .25), 0 8px 32px rgba(0, 0, 0, .45);
      transform: scale(1.03);
      z-index: 2;
    }

    .price-card.featured:hover {
      transform: scale(1.03) translateY(-4px);
    }

    .price-badge-recommend {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--accent);
      color: #0F0F10;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 16px;
      border-radius: var(--radius-badge);
      letter-spacing: 1px;
    }

    .price-plan-name {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 8px;
    }

    .price-amount {
      font-size: 44px;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.2;
      margin-bottom: 20px;
    }

    .price-amount .currency {
      font-size: 22px;
      color: var(--accent);
      vertical-align: top;
      margin-right: 2px;
    }

    .price-amount .period {
      font-size: 14px;
      color: var(--text-muted);
      font-weight: 400;
    }

    .price-feature-list {
      list-style: none;
      padding: 0;
      margin: 0 0 28px;
      flex: 1;
    }

    .price-feature-list li {
      font-size: 14px;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 7px 0;
      line-height: 1.6;
    }

    .price-feature-list li i {
      color: var(--accent);
      font-size: 12px;
    }

    .price-card .btn {
      width: 100%;
    }

    @media (max-width: 991.98px) {
      .price-card.featured {
        transform: scale(1);
      }

      .price-card.featured:hover {
        transform: translateY(-4px);
      }
    }

    @media (max-width: 767.98px) {
      .pricing-section .col-lg-4 {
        margin-bottom: 20px;
      }
    }

    /* ---- 资讯热榜区 ---- */
    .news-section {
      background: var(--bg-primary);
    }

    .news-list-wrap {
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 32px;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(255, 255, 255, .04);
    }

    .news-list-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .news-list-title i {
      color: var(--accent);
    }

    .news-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .05);
      transition: padding-left var(--transition);
    }

    .news-item:last-child {
      border-bottom: none;
    }

    .news-item:hover {
      padding-left: 8px;
    }

    .news-item .news-arrow {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid var(--border);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 12px;
      flex-shrink: 0;
      transition: all var(--transition);
    }

    .news-item:hover .news-arrow {
      background: var(--accent);
      color: #0F0F10;
      border-color: var(--accent);
    }

    .news-item .news-link {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.6;
      transition: color var(--transition);
    }

    .news-item:hover .news-link {
      color: var(--text-primary);
    }

    .trend-panel {
      background: var(--bg-card);
      border-radius: var(--radius-card);
      padding: 32px;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(255, 255, 255, .04);
      height: 100%;
    }

    .trend-panel-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .trend-panel-title i {
      color: var(--accent);
    }

    .trend-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .trend-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .05);
      font-size: 14px;
      color: var(--text-secondary);
    }

    .trend-item:last-child {
      border-bottom: none;
    }

    .trend-item .trend-rank {
      color: var(--accent);
      font-weight: 600;
      margin-right: 12px;
    }

    /* ---- FAQ ---- */
    .faq-section {
      background: var(--bg-section);
    }

    .accordion-custom {
      --bs-accordion-border-radius: 12px;
      --bs-accordion-inner-border-radius: 12px;
      --bs-accordion-bg: var(--bg-card);
      --bs-accordion-border-color: rgba(255, 255, 255, .06);
      --bs-accordion-color: var(--text-secondary);
      --bs-accordion-active-bg: var(--bg-card);
      --bs-accordion-active-color: var(--text-primary);
      --bs-accordion-btn-color: var(--text-primary);
      --bs-accordion-btn-focus-box-shadow: 0 0 0 3px rgba(232, 163, 61, .2);
      box-shadow: var(--shadow-card);
      border-radius: 12px;
      overflow: hidden;
    }

    .accordion-custom .accordion-item {
      border-left: 3px solid transparent;
      transition: border-color var(--transition);
    }

    .accordion-custom .accordion-item:first-of-type {
      border-left-color: var(--accent);
    }

    .accordion-custom .accordion-item.active-item {
      border-left-color: var(--accent);
    }

    .accordion-custom .accordion-button {
      font-size: 16px;
      font-weight: 600;
      padding: 20px 24px;
      color: var(--text-primary);
      background: var(--bg-card);
      box-shadow: none;
      border-top: 1px solid rgba(255, 255, 255, .04);
      min-height: 44px;
    }

    .accordion-custom .accordion-button:first-child {
      border-top: none;
    }

    .accordion-custom .accordion-button:not(.collapsed) {
      color: var(--text-primary);
      background: var(--bg-card);
    }

    .accordion-custom .accordion-button::after {
      background-image: none;
      content: '\f078';
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 14px;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 20px;
      height: 20px;
      transition: transform var(--transition);
    }

    .accordion-custom .accordion-button:not(.collapsed)::after {
      transform: rotate(180deg);
    }

    .accordion-custom .accordion-body {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-secondary);
      padding: 4px 24px 24px;
    }

    /* ---- 最终CTA ---- */
    .final-cta {
      position: relative;
      padding: 112px 0;
      overflow: hidden;
      background: #0A0A0B;
    }

    .final-cta-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-3.jpg');
      background-size: cover;
      background-position: center;
      filter: brightness(.35);
      transform: scale(1.03);
    }

    .final-cta-bg::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at center, rgba(15, 15, 16, .4) 0%, rgba(15, 15, 16, .8) 100%);
    }

    .final-cta-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 640px;
      margin: 0 auto;
    }

    .final-cta-content .section-title {
      color: var(--text-primary);
      margin-bottom: 20px;
    }

    .final-cta-content .section-desc {
      color: var(--text-secondary);
      margin-bottom: 36px;
    }

    /* ---- 页脚 ---- */
    .site-footer {
      background: #0A0A0B;
      border-top: 1px solid rgba(255, 255, 255, .04);
      padding: 72px 0 0;
    }

    .footer-brand {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 16px;
    }

    .footer-brand em {
      font-style: normal;
      color: var(--accent);
    }

    .footer-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 260px;
    }

    .footer-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 16px;
      letter-spacing: .5px;
    }

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

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--text-muted);
      transition: color var(--transition), padding-left var(--transition);
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 6px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .05);
      padding: 24px 0;
      margin-top: 48px;
      text-align: center;
      font-size: 14px;
      color: var(--text-muted);
    }

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

    /* ---- 响应式 ---- */
    @media (max-width: 991.98px) {
      .scene-text {
        padding-right: 0;
        margin-bottom: 32px;
      }

      .case-card {
        min-height: 220px;
      }
    }

    @media (max-width: 575.98px) {
      body {
        font-size: 15px;
      }

      .section-title {
        font-size: 26px;
      }

      .hero-title {
        font-size: 32px;
      }

      .footer-brand {
        font-size: 20px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        transition: none !important;
        scroll-behavior: auto !important;
      }
    }

    @media (hover: none) {
      .feature-card:hover,
      .price-card:hover,
      .case-card:hover {
        transform: none;
      }
    }

/* roulang page: category1 */
/* ==================== 设计变量 ==================== */
        :root {
            --bg-primary: #0F0F10;
            --bg-secondary: #121214;
            --bg-section: #161618;
            --bg-card: #1A1A1C;
            --accent: #E8A33D;
            --accent-hover: #F0B253;
            --wine: #8E3B46;
            --text-primary: #F5F1E8;
            --text-secondary: #B8B2A7;
            --text-muted: #7C766C;
            --border: rgba(255, 255, 255, .08);
            --border-hover: rgba(232, 163, 61, .35);
            --radius-btn: 8px;
            --radius-card: 12px;
            --radius-img: 16px;
            --radius-badge: 999px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, .35);
            --transition: .25s ease;
        }

        /* ==================== 基础 Reset ==================== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 80px 0;
        }

        /* ==================== 顶部信息条 ==================== */
        .topbar {
            background: #0A0A0B;
            height: 36px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .topbar-domain {
            font-size: 13px;
            color: rgba(255, 255, 255, .42);
            letter-spacing: .3px;
        }

        .topbar-btn {
            height: 26px;
            line-height: 24px;
            padding: 0 12px;
            border-radius: 6px;
            border: 1px solid var(--accent);
            color: var(--accent);
            background: transparent;
            font-size: 12px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .topbar-btn:hover {
            background: var(--accent);
            color: #0F0F10;
        }

        /* ==================== 主导航 ==================== */
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 15, 16, .88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .main-header .navbar {
            padding-top: 0;
            padding-bottom: 0;
            min-height: 68px;
            background: transparent;
        }

        .brand-logo {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: .5px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .brand-logo em {
            font-style: normal;
            color: var(--accent);
        }

        .navbar-nav {
            gap: 6px;
            margin-left: auto;
        }

        .nav-link-custom {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 10px 14px !important;
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            transition: color var(--transition);
        }

        .nav-link-custom::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 14px;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width .3s ease;
        }

        .nav-link-custom:hover {
            color: var(--accent);
        }

        .nav-link-custom:hover::after {
            width: calc(100% - 28px);
        }

        .nav-link-custom.active {
            color: var(--accent);
        }

        .nav-link-custom.active::before {
            content: '';
            display: inline-block;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--accent);
            margin-right: 7px;
            vertical-align: middle;
        }

        .nav-cta-btn {
            height: 42px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            background: var(--accent);
            color: #0F0F10;
            border: none;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 7px;
            transition: all var(--transition);
            margin-left: 12px;
            white-space: nowrap;
        }

        .nav-cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(232, 163, 61, .25);
            color: #0F0F10;
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 8px 12px;
            background: transparent;
            color: var(--text-primary);
            font-size: 20px;
            min-height: 44px;
            min-width: 44px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(232, 163, 61, .25);
        }

        /* ==================== 按钮 ==================== */
        .btn-brand-primary {
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            background: var(--accent);
            color: #0F0F10;
            border: none;
            font-size: 16px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all var(--transition);
        }

        .btn-brand-primary:hover {
            background: var(--accent-hover);
            color: #0F0F10;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(232, 163, 61, .3);
        }

        .btn-brand-outline {
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(232, 163, 61, .6);
            font-size: 16px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: all var(--transition);
        }

        .btn-brand-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(232, 163, 61, .12);
        }

        .btn:focus,
        .btn-brand-primary:focus,
        .btn-brand-outline:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(232, 163, 61, .3);
        }

        /* ==================== 徽章 ==================== */
        .badge-brand {
            height: 22px;
            display: inline-flex;
            align-items: center;
            padding: 0 12px;
            border-radius: var(--radius-badge);
            background: transparent;
            color: var(--accent);
            border: 1px solid rgba(232, 163, 61, .5);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: .3px;
            white-space: nowrap;
        }

        /* ==================== 分类页页头 Hero ==================== */
        .cat-hero {
            position: relative;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            background-color: #0A0A0B;
            padding: 56px 0;
            overflow: hidden;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 12, .72);
            background: linear-gradient(180deg, rgba(10, 10, 12, .66) 0%, rgba(15, 15, 16, .82) 100%);
        }

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

        .cat-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 18px;
        }

        .cat-breadcrumb a {
            color: rgba(255, 255, 255, .55);
            transition: color var(--transition);
        }

        .cat-breadcrumb a:hover {
            color: var(--accent);
        }

        .cat-breadcrumb .sep {
            color: rgba(255, 255, 255, .28);
        }

        .cat-breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }

        .cat-hero h1 {
            font-size: 38px;
            font-weight: 700;
            margin: 0 0 10px;
            letter-spacing: 1px;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .cat-hero h1 em {
            font-style: normal;
            color: var(--accent);
        }

        .cat-hero .cat-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0;
            line-height: 1.8;
        }

        .cat-hero-glow {
            position: absolute;
            top: -60px;
            right: 10%;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 163, 61, .12) 0%, transparent 70%);
            pointer-events: none;
        }

        /* ==================== 视频库优势（卖点） ==================== */
        .advantage-section {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 64px 0 56px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 2px;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 4px;
            border-radius: 4px;
            background: var(--accent);
            display: inline-block;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            margin: 0 0 12px;
            line-height: 1.35;
            letter-spacing: .3px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin: 0;
        }

        .advantage-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 40px;
        }

        .advantage-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all var(--transition);
        }

        .advantage-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .advantage-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 10px;
            background: rgba(232, 163, 61, .1);
            border: 1px solid rgba(232, 163, 61, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
        }

        .advantage-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-primary);
        }

        .advantage-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ==================== 筛选条 ==================== */
        .filter-section {
            background: var(--bg-primary);
            padding: 56px 0 8px;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
        }

        .filter-bar-label {
            font-size: 14px;
            color: var(--text-muted);
            margin-right: 6px;
            white-space: nowrap;
        }

        .filter-pill {
            height: 36px;
            padding: 0 20px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--border);
            background: transparent;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-pill:hover {
            border-color: rgba(232, 163, 61, .5);
            color: var(--accent);
        }

        .filter-pill.active {
            background: var(--accent);
            color: #0F0F10;
            border-color: var(--accent);
            font-weight: 600;
        }

        /* ==================== 视频列表 ==================== */
        .list-section {
            background: var(--bg-primary);
            padding: 24px 0 64px;
        }

        .video-list-wrap {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .video-list-item {
            position: relative;
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: all var(--transition);
            overflow: hidden;
        }

        .video-list-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--accent);
            border-radius: 0 3px 3px 0;
            opacity: 0;
            transform: scaleY(.5);
            transition: all .3s ease;
        }

        .video-list-item:hover {
            background: #202022;
            border-color: var(--border-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }

        .video-list-item:hover::before {
            opacity: 1;
            transform: scaleY(1);
        }

        .video-thumb {
            width: 260px;
            min-width: 260px;
            aspect-ratio: 16/9;
            border-radius: 10px;
            overflow: hidden;
            background: #141416;
        }

        .video-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .video-list-item:hover .video-thumb img {
            transform: scale(1.05);
        }

        .video-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
            padding-right: 8px;
        }

        .video-info-top {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .video-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .video-meta i {
            font-size: 12px;
            color: rgba(232, 163, 61, .6);
        }

        .video-info h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.4;
        }

        .video-info p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ==================== 分页器 ==================== */
        .pagination-wrapper {
            display: flex;
            justify-content: center;
            padding: 44px 0 0;
        }

        .pagination {
            gap: 8px;
        }

        .page-link {
            border-radius: 8px !important;
            border: 1px solid var(--border) !important;
            background: transparent !important;
            color: var(--text-secondary) !important;
            font-size: 14px;
            font-weight: 500;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0;
            transition: all var(--transition);
        }

        .page-link:hover {
            border-color: rgba(232, 163, 61, .5) !important;
            color: var(--accent) !important;
            background: rgba(232, 163, 61, .08) !important;
        }

        .page-item.active .page-link {
            background: var(--accent) !important;
            color: #0F0F10 !important;
            border-color: var(--accent) !important;
            font-weight: 600;
        }

        .page-item.disabled .page-link {
            opacity: .35;
            pointer-events: none;
        }

        /* ==================== 场景分区 ==================== */
        .scene-section {
            background: var(--bg-section);
            padding: 64px 0;
        }

        .scene-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-top: 40px;
        }

        .scene-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: rgba(26, 26, 28, .6);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            transition: all var(--transition);
        }

        .scene-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card);
        }

        .scene-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            border-radius: 50%;
            background: rgba(232, 163, 61, .1);
            border: 1px solid rgba(232, 163, 61, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 16px;
        }

        .scene-content {
            flex: 1;
        }

        .scene-content h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .scene-content p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ==================== 流程 ==================== */
        .process-section {
            background: var(--bg-secondary);
            padding: 64px 0;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 44px;
        }

        .process-step {
            position: relative;
            text-align: center;
            padding: 0 12px;
        }

        .process-step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            border: 1px solid rgba(232, 163, 61, .4);
            background: rgba(232, 163, 61, .06);
            color: var(--accent);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ==================== FAQ ==================== */
        .faq-section {
            background: var(--bg-primary);
            padding: 64px 0;
        }

        .faq-wrap {
            max-width: 860px;
            margin: 40px auto 0;
        }

        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(232, 163, 61, .35) !important;
            box-shadow: 0 0 0 1px rgba(232, 163, 61, .15);
        }

        .accordion-button {
            background: transparent !important;
            color: var(--text-primary) !important;
            font-size: 16px;
            font-weight: 600;
            padding: 18px 22px;
            box-shadow: none !important;
            border-radius: var(--radius-card) !important;
        }

        .accordion-button::after {
            background: none;
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 16px;
            color: var(--accent);
            transition: transform .3s ease;
            width: 18px;
            height: 18px;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(232, 163, 61, .2) !important;
        }

        .accordion-body {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ==================== 最终 CTA ==================== */
        .cta-section {
            position: relative;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            padding: 88px 0;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 10, 12, .78);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            line-height: 1.35;
        }

        .cta-inner h2 em {
            font-style: normal;
            color: var(--accent);
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0 0 32px;
            line-height: 1.8;
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: #0A0A0B;
            padding: 72px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .04);
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .footer-brand em {
            font-style: normal;
            color: var(--accent);
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            max-width: 340px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a,
        .footer-links span {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition);
            line-height: 1.6;
        }

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

        .footer-bottom {
            margin-top: 56px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, .05);
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
        }

        .domain-text {
            color: rgba(232, 163, 61, .8);
        }

        /* ==================== 响应式 ==================== */
        @media (max-width: 991px) {
            .navbar-collapse {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(15, 15, 16, .98);
                border-bottom: 1px solid var(--border);
                border-radius: 0 0 16px 16px;
                padding: 16px 20px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, .5);
            }

            .navbar-nav {
                gap: 0;
                padding: 0;
                margin: 0;
            }

            .nav-link-custom {
                justify-content: center;
                width: 100%;
                padding: 14px 16px !important;
            }

            .nav-link-custom::after {
                display: none;
            }

            .nav-cta-btn {
                margin: 12px auto 4px;
                display: flex;
                justify-content: center;
                width: 100%;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 28px 16px;
            }
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 56px 0;
            }

            .cat-hero {
                padding: 44px 0;
            }

            .cat-hero h1 {
                font-size: 28px;
            }

            .cat-hero .cat-subtitle {
                font-size: 15px;
            }

            .section-title {
                font-size: 26px;
            }

            .advantage-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .advantage-item {
                padding: 20px;
            }

            .video-list-item {
                flex-direction: column;
                gap: 14px;
                padding: 14px;
            }

            .video-thumb {
                width: 100%;
                min-width: 0;
                aspect-ratio: 16/9;
            }

            .video-info {
                padding-right: 0;
            }

            .scene-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-section {
                padding: 64px 0;
            }

            .cta-inner h2 {
                font-size: 28px;
            }

            .container-custom {
                padding: 0 18px;
            }

            .filter-bar {
                gap: 8px;
            }

            .filter-pill {
                padding: 0 14px;
                height: 34px;
                font-size: 13px;
            }
        }

        @media (max-width: 575px) {
            .topbar-domain {
                font-size: 12px;
            }

            .topbar-btn {
                padding: 0 10px;
                font-size: 11px;
            }

            .cat-hero h1 {
                font-size: 24px;
            }

            .video-info h3 {
                font-size: 17px;
            }
        }

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