/* roulang page: index */
:root {
      --primary: #0F52BA;
      --primary-dark: #0A387E;
      --accent: #00A86B;
      --accent-purple: #4F46E5;
      --gradient-brand: linear-gradient(135deg, #0F52BA 0%, #4F46E5 100%);
      --gradient-hero: linear-gradient(135deg, rgba(11, 19, 43, 0.92) 0%, rgba(15, 82, 186, 0.88) 100%);
      --bg-page: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B132B;
      --bg-alt: #F1F5F9;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-pill: 9999px;
      --shadow-soft: 0 10px 30px -5px rgba(15, 82, 186, 0.08);
      --shadow-hover: 0 18px 40px -8px rgba(15, 82, 186, 0.16);
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-body);
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
    }

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

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

    button, input, select, textarea {
      font: inherit;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* 顶栏与主导航 */
    .top-bar {
      background-color: #070D1E;
      color: #94A3B8;
      font-size: 0.84rem;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 8px 0;
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-meta {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .top-status-indicator {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #34D399;
    }
    .pulse-dot {
      width: 7px;
      height: 7px;
      background-color: #34D399;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.2);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.02em;
    }
    .brand-badge-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--gradient-brand);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 900;
      font-size: 1.1rem;
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.25);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 26px;
      list-style: none;
    }
    .nav-item a {
      font-size: 0.96rem;
      font-weight: 600;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover,
    .nav-item a.active {
      color: var(--primary);
    }
    .nav-item a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-item a:hover::after,
    .nav-item a.active::after {
      width: 100%;
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 22px;
      font-size: 0.94rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      border: 1px solid transparent;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
      min-height: 44px;
    }
    .btn-primary {
      background: var(--gradient-brand);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(15, 82, 186, 0.3);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(15, 82, 186, 0.4);
      color: #FFFFFF;
    }
    .btn-outline {
      border-color: rgba(255, 255, 255, 0.35);
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(4px);
    }
    .btn-outline:hover {
      background: #FFFFFF;
      color: var(--primary-dark);
      border-color: #FFFFFF;
      transform: translateY(-2px);
    }
    .btn-solid-dark {
      background: var(--bg-dark);
      color: #FFFFFF;
    }
    .btn-solid-dark:hover {
      background: #162447;
      transform: translateY(-2px);
    }

    /* 移动端菜单开关 */
    .mobile-menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-toggle span {
      width: 24px;
      height: 2px;
      background-color: var(--text-main);
      transition: var(--transition);
    }

    /* 通用板块与排版 */
    .section-block {
      padding: 92px 0;
      position: relative;
    }
    .section-bg-alt {
      background-color: var(--bg-alt);
    }
    .section-bg-dark {
      background-color: var(--bg-dark);
      color: #F8FAFC;
    }
    .section-bg-white {
      background-color: #FFFFFF;
    }
    .section-header {
      max-width: 820px;
      margin: 0 auto 56px auto;
      text-align: center;
    }
    .section-header.text-left {
      margin-left: 0;
      text-align: left;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      background: rgba(15, 82, 186, 0.08);
      color: var(--primary);
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: var(--radius-pill);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 16px;
      border: 1px solid rgba(15, 82, 186, 0.15);
    }
    .section-bg-dark .section-tag {
      background: rgba(79, 70, 229, 0.2);
      color: #818CF8;
      border-color: rgba(129, 140, 248, 0.3);
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 18px;
      letter-spacing: -0.02em;
    }
    .section-bg-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
    }
    .section-bg-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 资源检索版式 */
    .hero-section {
      position: relative;
      background: var(--gradient-hero), url('/assets/images/703c7ce54c1a399e.webp') center/cover no-repeat;
      color: #FFFFFF;
      padding: 100px 0 110px 0;
      overflow: hidden;
    }
    .hero-section::after {
      content: '';
      position: absolute;
      bottom: -1px;
      left: 0;
      right: 0;
      height: 48px;
      background: var(--bg-page);
      clip-path: polygon(0 100%, 100% 100%, 100% 0);
    }
    .hero-container {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }
    .hero-badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 18px;
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, 0.12);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.25);
      font-size: 0.88rem;
      margin-bottom: 24px;
      font-weight: 600;
    }
    .hero-badge-pill span.badge-num {
      background: #00A86B;
      color: #FFF;
      padding: 2px 8px;
      border-radius: var(--radius-pill);
      font-size: 0.75rem;
    }
    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.03em;
    }
    .hero-intro {
      font-size: 1.15rem;
      color: #E2E8F0;
      line-height: 1.8;
      max-width: 860px;
      margin: 0 auto 36px auto;
    }
    
    /* 搜索框与热搜分类 */
    .hero-search-wrapper {
      background: rgba(255, 255, 255, 0.98);
      padding: 8px;
      border-radius: var(--radius-pill);
      box-shadow: 0 16px 36px rgba(0, 0, 0, 0.24);
      display: flex;
      align-items: center;
      max-width: 720px;
      margin: 0 auto 28px auto;
    }
    .hero-search-input {
      flex: 1;
      border: none;
      outline: none;
      padding: 12px 24px;
      font-size: 1rem;
      color: var(--text-main);
      background: transparent;
    }
    .hero-search-btn {
      padding: 14px 32px;
      border-radius: var(--radius-pill);
      border: none;
      background: var(--gradient-brand);
      color: #FFFFFF;
      font-weight: 700;
      cursor: pointer;
      transition: var(--transition);
      box-shadow: 0 4px 12px rgba(15, 82, 186, 0.35);
    }
    .hero-search-btn:hover {
      opacity: 0.95;
      transform: scale(1.02);
    }
    .hero-quick-tags {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 10px;
      font-size: 0.88rem;
      color: #CBD5E1;
    }
    .hero-quick-tags a {
      background: rgba(255, 255, 255, 0.15);
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      color: #FFFFFF;
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    .hero-quick-tags a:hover {
      background: #FFFFFF;
      color: var(--primary);
    }
    .hero-metrics-bar {
      margin-top: 48px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: rgba(255, 255, 255, 0.07);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.16);
      padding: 24px;
      border-radius: var(--radius-lg);
    }
    .metric-item {
      text-align: center;
    }
    .metric-value {
      font-size: 1.85rem;
      font-weight: 800;
      color: #FFFFFF;
      font-feature-settings: "tnum";
    }
    .metric-label {
      font-size: 0.82rem;
      color: #94A3B8;
      margin-top: 4px;
    }

    /* 2. 全球与全网节点覆盖 (#global) */
    .coverage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .coverage-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      position: relative;
    }
    .coverage-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(15, 82, 186, 0.3);
    }
    .card-icon-pill {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(15, 82, 186, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .card-text {
      font-size: 0.94rem;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 3. 多场景卡网格 (#scenes) */
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scene-box {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .scene-box:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .scene-img-holder {
      position: relative;
      height: 200px;
      overflow: hidden;
    }
    .scene-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .scene-box:hover .scene-img-holder img {
      transform: scale(1.06);
    }
    .scene-tag-floating {
      position: absolute;
      top: 14px;
      right: 14px;
      background: rgba(15, 23, 42, 0.85);
      color: #FFFFFF;
      font-size: 0.75rem;
      padding: 4px 10px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      backdrop-filter: blur(4px);
    }
    .scene-body {
      padding: 26px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scene-meta-list {
      list-style: none;
      margin-top: 16px;
      padding-top: 16px;
      border-top: 1px dashed var(--border-color);
      display: flex;
      flex-direction: column;
      gap: 8px;
      font-size: 0.86rem;
      color: var(--text-muted);
    }
    .scene-meta-list li {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .scene-meta-list li::before {
      content: '✔';
      color: var(--accent);
      font-weight: bold;
    }

    /* 4. 本地化清洗与技术架构 (#localization) */
    .tech-two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .tech-lead-content h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.35;
    }
    .tech-lead-content p {
      font-size: 1rem;
      color: var(--text-body);
      margin-bottom: 24px;
      line-height: 1.75;
    }
    .spec-table-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .spec-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 14px 20px;
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .spec-name {
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.92rem;
    }
    .spec-val {
      font-family: monospace;
      font-weight: 600;
      color: var(--primary);
      background: rgba(15, 82, 186, 0.08);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
    }
    .tech-preview-card {
      background: #0B132B;
      border-radius: var(--radius-lg);
      padding: 32px;
      color: #E2E8F0;
      box-shadow: 0 20px 40px rgba(0,0,0,0.25);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .code-header-dots {
      display: flex;
      gap: 8px;
      margin-bottom: 20px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .code-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .code-dot.red { background: #EF4444; }
    .code-dot.yellow { background: #F59E0B; }
    .code-dot.green { background: #10B981; }
    .code-block-content {
      font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
      font-size: 0.86rem;
      line-height: 1.6;
      color: #38BDF8;
    }
    .code-block-content span.cmt { color: #64748B; }
    .code-block-content span.kw { color: #F43F5E; }
    .code-block-content span.str { color: #34D399; }

    /* 5. 核心产品矩阵 (#matrix) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-soft);
      position: relative;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .matrix-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .matrix-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 16px 36px rgba(15, 82, 186, 0.14);
    }
    .featured-ribbon {
      position: absolute;
      top: -12px;
      right: 24px;
      background: var(--gradient-brand);
      color: #FFFFFF;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 10px rgba(15, 82, 186, 0.3);
    }
    .matrix-card .price-row {
      margin: 20px 0;
      padding: 16px 0;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .matrix-card .latency-tag {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
    }
    .matrix-card ul.feature-list {
      list-style: none;
      margin-bottom: 28px;
      flex: 1;
    }
    .matrix-card ul.feature-list li {
      margin-bottom: 12px;
      font-size: 0.92rem;
      color: var(--text-body);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .matrix-card ul.feature-list li::before {
      content: '✓';
      color: var(--primary);
      font-weight: bold;
    }

    /* 6. 深色核心理念与安全闭环 (#philosophy) */
    .philosophy-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .philo-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 30px 24px;
      backdrop-filter: blur(8px);
      transition: var(--transition);
    }
    .philo-card:hover {
      background: rgba(255, 255, 255, 0.08);
transform: translateY(-4px);
      border-color: rgba(79, 70, 229, 0.4);
    }
    .philo-step {
      font-size: 0.8rem;
      font-weight: 800;
      color: #818CF8;
      letter-spacing: 0.08em;
      margin-bottom: 12px;
      display: inline-block;
    }
    .philo-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .philo-desc {
      font-size: 0.88rem;
      color: #94A3B8;
      line-height: 1.65;
    }

    /* 7. 方案落地与用户故事 (#stories) */
    .story-card-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .story-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 36px 32px;
      box-shadow: var(--shadow-soft);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .story-role {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 20px;
    }
    .story-avatar {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #FFF;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
    }
    .story-profile h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .story-profile p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .story-quote {
      font-size: 0.96rem;
      color: var(--text-body);
      line-height: 1.75;
      margin-bottom: 24px;
      font-style: normal;
    }
    .story-stat-chips {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .stat-chip {
      background: var(--bg-alt);
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      font-size: 0.82rem;
      color: var(--primary);
      font-weight: 700;
    }

    /* 8. 实时数据统计栏 (#stats) */
    .stats-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stats-counter-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 20px;
      text-align: center;
      box-shadow: var(--shadow-soft);
    }
    .stats-num {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .stats-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 9. 口碑气泡与多维评价 (#testimonials) */
    .testimonial-bubble-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-bubble-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-soft);
      position: relative;
    }
    .testi-bubble-card::after {
      content: '“';
      position: absolute;
      top: 16px;
      right: 24px;
      font-size: 4rem;
      line-height: 1;
      color: rgba(15, 82, 186, 0.08);
      font-family: Georgia, serif;
    }
    .bubble-rate-stars {
      color: #F59E0B;
      font-size: 0.9rem;
      margin-bottom: 14px;
    }
    .bubble-text {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .bubble-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .bubble-user-initial {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #E2E8F0;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .bubble-user-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .bubble-user-tag {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 10. 策略资讯与洞见摘要 (#insights) */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-post-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .insight-post-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .insight-thumb-box {
      height: 190px;
      overflow: hidden;
    }
    .insight-thumb-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .insight-post-card:hover .insight-thumb-box img {
      transform: scale(1.05);
    }
    .insight-article-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .insight-article-date {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .insight-article-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.45;
    }
    .insight-article-snippet {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .insight-inline-action {
      font-size: 0.88rem;
      font-weight: 700;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 11. 合作生态墙 (#partners) */
    .partners-logo-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 18px;
    }
    .partner-logo-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-muted);
      transition: var(--transition);
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    }
    .partner-logo-item:hover {
      color: var(--primary);
      border-color: var(--primary);
      transform: translateY(-3px);
      box-shadow: var(--shadow-soft);
    }

    /* 12. 交互式 FAQ 折叠面板 (#faq) */
    .faq-accordion-box {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item-details {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 2px 8px rgba(0,0,0,0.03);
      transition: var(--transition);
    }
    .faq-item-details[open] {
      border-color: rgba(15, 82, 186, 0.4);
      box-shadow: var(--shadow-soft);
    }
    .faq-item-summary {
      padding: 20px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      list-style: none;
    }
    .faq-item-summary::-webkit-details-marker {
      display: none;
    }
    .faq-item-summary::after {
      content: '+';
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-item-details[open] .faq-item-summary::after {
      content: '−';
    }
    .faq-item-answer {
      padding: 0 24px 22px 24px;
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.75;
      border-top: 1px solid transparent;
    }

    /* 13. 保障与转化收口 (#cta) */
    .cta-dual-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-hover);
      padding: 48px;
    }
    .cta-guarantee-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-top: 24px;
    }
    .guarantee-point {
      display: flex;
      gap: 14px;
      align-items: flex-start;
    }
    .guarantee-icon {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: rgba(0, 168, 107, 0.12);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.95rem;
      flex-shrink: 0;
    }
    .guarantee-content h5 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .guarantee-content p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .cta-form-container {
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 28px;
    }
    .cta-form-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .cta-form-sub {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 22px;
    }
    .cta-form-group {
      margin-bottom: 16px;
    }
    .cta-form-label {
      display: block;
      font-size: 0.86rem;
      font-weight: 600;
      color: var(--text-body);
      margin-bottom: 6px;
    }
    .cta-form-control {
      width: 100%;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      outline: none;
      font-size: 0.92rem;
      color: var(--text-main);
      transition: var(--transition);
    }
    .cta-form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(15, 82, 186, 0.12);
    }
    .btn-block {
      width: 100%;
      margin-top: 8px;
    }

    /* 全局页脚 */
    .site-footer {
      background-color: #070D1E;
      color: #94A3B8;
      padding: 72px 0 36px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 56px;
    }
    .footer-col-title {
      color: #FFFFFF;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links-list a:hover {
      color: #FFFFFF;
      padding-left: 4px;
    }
    .footer-bottom {
      padding-top: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.84rem;
    }

    /* 响应式断点 */
    @media (max-width: 1199px) {
      .coverage-grid,
      .scenes-grid,
      .matrix-grid,
      .insights-grid,
      .testimonial-bubble-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .philosophy-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-logo-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 767px) {
      .top-bar {
        display: none;
      }
      .header-inner {
        height: 64px;
      }
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-menu {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.06);
        display: none;
      }
      .nav-menu.open {
        display: flex;
      }
      .header-actions .btn {
        display: none;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .coverage-grid,
      .scenes-grid,
      .matrix-grid,
      .insights-grid,
      .testimonial-bubble-grid,
      .story-card-wrapper,
      .tech-two-col,
      .cta-dual-wrapper,
      .philosophy-grid {
        grid-template-columns: 1fr;
      }
      .stats-bar-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .partners-logo-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section-block {
        padding: 60px 0;
      }
      .cta-dual-wrapper {
        padding: 24px;
      }
      .hero-search-wrapper {
        flex-direction: column;
        border-radius: var(--radius-md);
        padding: 12px;
      }
      .hero-search-btn {
        width: 100%;
      }
    }