:root {
      --primary: #0F52BA;
      --accent: #FF5500;
      --secondary: #6C5CE7;
      --neon-cyan: #00D2D3;
      --dark-text: #1E232A;
      --body-text: #4A5568;
      --light-bg: #F8FAFC;
      --card-bg: #FFFFFF;
      --border-color: #E2E8F0;
      --gradient-brand: linear-gradient(135deg, #0F52BA 0%, #6C5CE7 50%, #FF5500 100%);
      --shadow-sm: 0 2px 8px rgba(15, 82, 186, 0.06);
      --shadow-md: 0 10px 25px rgba(15, 82, 186, 0.1);
      --shadow-lg: 0 20px 40px rgba(108, 92, 231, 0.14);
      --radius: 12px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--light-bg);
      color: var(--dark-text);
      line-height: 1.6;
      overflow-x: hidden;
      min-width: 320px;
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

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

    .section-head {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 50px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(15, 82, 186, 0.08);
      border-radius: 30px;
      margin-bottom: 12px;
      border: 1px solid rgba(15, 82, 186, 0.15);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 16px;
      color: var(--body-text);
      line-height: 1.7;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    }

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

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

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: 0.5px;
    }

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

    .nav-links li a {
      display: block;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 600;
      color: var(--dark-text);
      border-radius: 6px;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--accent);
      background: rgba(255, 85, 0, 0.06);
    }

    .header-cta-group {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 24px;
      font-size: 15px;
      font-weight: 700;
      border-radius: 8px;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      border: 2px solid transparent;
      text-align: center;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn-primary {
      background: var(--accent);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
    }

    .btn-primary:hover {
      background: #E04B00;
      box-shadow: 0 6px 18px rgba(255, 85, 0, 0.45);
      color: #FFF;
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: #FFFFFF;
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    .btn-lg {
      padding: 15px 32px;
      font-size: 16px;
      border-radius: 10px;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-btn span {
      display: block;
      width: 24px;
      height: 3px;
      background: var(--dark-text);
      margin: 4px 0;
      border-radius: 2px;
      transition: 0.3s;
    }

    /* 首屏 Hero - 无图片，明艳撞色纯色与几何科技卡片 */
    .hero-section {
      background: linear-gradient(135deg, #FFFFFF 0%, #EEF4FD 60%, #FFF3EB 100%);
      padding: 90px 0 80px 0;
      position: relative;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .hero-decor-1 {
      position: absolute;
      top: -120px;
      right: -80px;
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(108, 92, 231, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-decor-2 {
      position: absolute;
      bottom: -100px;
      left: -80px;
      width: 380px;
      height: 380px;
      background: radial-gradient(circle, rgba(255, 85, 0, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #FFFFFF;
      border: 1px solid rgba(15, 82, 186, 0.2);
      border-radius: 30px;
      padding: 8px 20px;
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      display: inline-block;
    }

    .hero-title {
      font-size: 44px;
      font-weight: 900;
      line-height: 1.25;
      color: #0B1E3F;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-block;
    }

    .hero-lead {
      font-size: 18px;
      color: var(--body-text);
      max-width: 840px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #FFFFFF;
      padding: 24px 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(15, 82, 186, 0.12);
      box-shadow: var(--shadow-md);
      transition: transform 0.3s ease;
    }

    .hero-stat-card:hover {
      transform: translateY(-4px);
    }

    .hero-stat-num {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .hero-stat-label {
      font-size: 14px;
      color: var(--body-text);
      font-weight: 600;
    }

    /* 模型矩阵胶囊条 */
    .model-strip-section {
      background: #0B1E3F;
      color: #FFFFFF;
      padding: 22px 0;
      border-bottom: 3px solid var(--accent);
    }

    .model-strip-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      overflow: hidden;
      white-space: nowrap;
    }

    .model-strip-label {
      font-weight: 800;
      font-size: 14px;
      color: #FFB142;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .model-tag-list {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .model-tag {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #F8FAFC;
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 13px;
      font-weight: 600;
      transition: background 0.2s;
    }

    .model-tag:hover {
      background: var(--accent);
      border-color: var(--accent);
      color: #FFF;
    }

    /* 平台核心介绍 */
    .platform-intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .intro-content-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .intro-feature-list {
      list-style: none;
      margin-top: 24px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .intro-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--dark-text);
      font-weight: 600;
    }

    .feature-icon-circle {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(15, 82, 186, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 800;
      flex-shrink: 0;
    }

    .intro-media-card {
      background: linear-gradient(135deg, #1E293B, #0F172A);
      border-radius: var(--radius);
      padding: 32px;
      color: #FFFFFF;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .intro-badge-highlight {
      display: inline-block;
      background: var(--accent);
      color: #FFF;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 16px;
    }

    .intro-media-card h3 {
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 14px;
      color: #FFF;
    }

    .intro-media-card p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }

    .media-embed-banner {
      border-radius: 8px;
      overflow: hidden;
      margin-top: 16px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 一站式AIGC服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(15, 82, 186, 0.3);
    }

    .service-card:hover::before {
      opacity: 1;
      background: var(--gradient-brand);
    }

    .service-badge {
      font-size: 12px;
      font-weight: 700;
      color: var(--accent);
      background: rgba(255, 85, 0, 0.08);
      display: inline-block;
      padding: 4px 10px;
      border-radius: 4px;
      width: fit-content;
      margin-bottom: 16px;
    }

    .service-title {
      font-size: 20px;
      font-weight: 800;
      color: var(--dark-text);
      margin-bottom: 12px;
    }

    .service-desc {
      font-size: 14px;
      color: var(--body-text);
      line-height: 1.6;
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .service-foot {
      border-top: 1px dashed var(--border-color);
      padding-top: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
    }

    /* 标准制作流程 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-step-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px 20px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      position: relative;
    }

    .flow-step-num {
      width: 44px;
      height: 44px;
      background: var(--primary);
      color: #FFFFFF;
      font-size: 18px;
      font-weight: 800;
      border-radius: 50%;
      margin: 0 auto 16px auto;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(15, 82, 186, 0.25);
    }

    .flow-step-card:nth-child(2) .flow-step-num {
      background: var(--secondary);
    }
    .flow-step-card:nth-child(3) .flow-step-num {
      background: #00A8FF;
    }
    .flow-step-card:nth-child(4) .flow-step-num {
      background: var(--accent);
    }

    .flow-step-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--dark-text);
    }

    .flow-step-desc {
      font-size: 13px;
      color: var(--body-text);
      line-height: 1.6;
    }

    /* 案例中心 */
    .cases-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
    }

    .case-card-featured {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-media-box {
      background: #E2E8F0;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .case-media-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-card-featured:hover .case-media-box img {
      transform: scale(1.03);
    }

    .case-body {
      padding: 24px;
    }

    .case-side-column {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .case-card-side {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    /* 对比评测表格与评分卡 */
    .eval-container {
      background: #FFFFFF;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .eval-header-summary {
      background: linear-gradient(135deg, #0F52BA, #6C5CE7);
      color: #FFFFFF;
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .eval-score-badge {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .eval-huge-score {
      font-size: 52px;
      font-weight: 900;
      line-height: 1;
      color: #FFD32A;
    }

    .eval-score-meta {
      font-size: 14px;
    }

    .eval-stars {
      color: #FFD32A;
      font-size: 20px;
      margin-bottom: 4px;
    }

    .eval-table-wrap {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .eval-table th,
    .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .eval-table th {
      background: #F1F5F9;
      color: var(--dark-text);
      font-weight: 700;
    }

    .eval-table tr:hover td {
      background: rgba(15, 82, 186, 0.02);
    }

    .badge-win {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 4px;
      background: rgba(0, 210, 211, 0.15);
      color: #008485;
      font-weight: 700;
      font-size: 13px;
    }

    .badge-normal {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 4px;
      background: #F1F5F9;
      color: var(--body-text);
      font-size: 13px;
    }

    /* 需求匹配与表单 */
    .form-match-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-md);
      padding: 40px;
      max-width: 860px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group.full-width {
      grid-column: 1 / -1;
    }

    .form-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark-text);
    }

    .form-control {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      color: var(--dark-text);
      background: #F8FAFC;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #FFFFFF;
    }

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

    .testimonial-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testimonial-text {
      font-size: 14px;
      color: var(--body-text);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #F1F5F9;
      padding-top: 14px;
    }

    .user-avatar-tag {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--gradient-brand);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
    }

    .user-info-name {
      font-size: 15px;
      font-weight: 700;
      color: var(--dark-text);
    }

    .user-info-role {
      font-size: 12px;
      color: var(--body-text);
    }

    /* 常见问题 FAQ 折叠面板 */
    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      transition: all 0.2s ease;
    }

    .faq-item.active {
      border-color: var(--primary);
    }

    .faq-trigger {
      width: 100%;
      background: none;
      border: none;
      padding: 18px 24px;
      text-align: left;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark-text);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

    .faq-trigger:hover {
      color: var(--primary);
    }

    .faq-icon-cross {
      font-size: 18px;
      font-weight: 800;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-item.active .faq-icon-cross {
      transform: rotate(45deg);
      color: var(--accent);
    }

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
      background: #F8FAFC;
    }

    .faq-content p {
      padding: 16px 0;
      font-size: 14px;
      color: var(--body-text);
      line-height: 1.7;
    }

    /* 行业资讯与文章 */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform 0.2s;
    }

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

    .article-date {
      font-size: 12px;
      color: #94A3B8;
      margin-bottom: 8px;
    }

    .article-card-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-link {
      font-size: 14px;
      color: var(--primary);
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 加盟代理与算力生态 */
    .agency-banner {
      background: linear-gradient(135deg, #0B1E3F 0%, #1A365D 100%);
      border-radius: var(--radius);
      color: #FFFFFF;
      padding: 50px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 30px;
      border: 2px solid rgba(255, 85, 0, 0.4);
    }

    .agency-content {
      max-width: 680px;
    }

    .agency-title {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #FFF;
    }

    .agency-desc {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.7;
    }

    /* 页脚 */
    .site-footer {
      background: #0B1E3F;
      color: #E2E8F0;
      padding: 60px 0 24px 0;
      border-top: 4px solid var(--primary);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-col-title {
      font-size: 16px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 18px;
      position: relative;
    }

    .footer-col-title::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 24px;
      height: 2px;
      background: var(--accent);
    }

    .footer-text {
      font-size: 14px;
      line-height: 1.7;
      color: #94A3B8;
      margin-bottom: 16px;
    }

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

    .footer-links-list li a {
      font-size: 14px;
      color: #CBD5E1;
    }

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

    .contact-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: #CBD5E1;
      margin-bottom: 8px;
    }

    .qr-wrap {
      margin-top: 12px;
      display: inline-block;
      background: #FFF;
      padding: 6px;
      border-radius: 6px;
    }

    .qr-wrap img {
      width: 100px;
      height: 100px;
      display: block;
    }

    .friend-links-box {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding: 20px 0;
      margin-bottom: 20px;
    }

    .friend-links-title {
      font-size: 13px;
      color: #94A3B8;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-wrap a {
      font-size: 13px;
      color: #CBD5E1;
    }

    .friend-links-wrap a:hover {
      color: #FFF;
      text-decoration: underline;
    }

    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 13px;
      color: #94A3B8;
    }

    .ai-page-home-link {
      color: #94A3B8;
      margin-left: 10px;
    }

    .ai-page-home-link:hover {
      color: var(--accent);
    }

    /* 浮动工具条与返回顶部 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #FFFFFF;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 14px;
      font-weight: 700;
      transition: all 0.2s ease;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #FFFFFF;
      transform: translateY(-3px);
    }

    .float-btn.accent-float {
      background: var(--accent);
      color: #FFF;
      border: none;
    }

    .float-btn.accent-float:hover {
      background: #E04B00;
    }

    /* 响应式样式 */
    @media (max-width: 1024px) {
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: 64px;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .header-cta-group .btn-outline {
        display: none;
      }
      .hero-title {
        font-size: 30px;
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .platform-intro-grid {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .flow-grid {
        grid-template-columns: 1fr 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .testimonials-grid {
        grid-template-columns: 1fr;
      }
      .articles-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }