/* CSS 初始化与全局变量 */
    :root {
      --primary-color: #00adb5;
      --primary-light: #e0f7f8;
      --primary-dark: #0f2b36;
      --secondary-color: #00f2fe;
      --bg-light: #f8fbfb;
      --bg-card: #ffffff;
      --text-main: #2b3a42;
      --text-muted: #62757f;
      --text-dark: #121e24;
      --border-color: #e5eded;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
      --max-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--secondary-color);
    }

    ul {
      list-style: none;
    }

    /* 布局容器 */
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    .section-title {
      text-align: center;
      margin-bottom: 45px;
    }

    .section-title h2 {
      font-size: 2rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
      position: relative;
      display: inline-block;
    }

    .section-title h2::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 50%;
      transform: translateX(-50%);
      width: 50px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
      border-radius: 2px;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 1rem;
    }

    section {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      border-radius: 5px;
      font-weight: 600;
      transition: var(--transition);
      cursor: pointer;
      border: none;
      font-size: 0.95rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(0, 173, 181, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(0, 173, 181, 0.4);
      color: #ffffff;
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--primary-color);
      color: var(--primary-color);
    }

    .btn-outline:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* 导航栏 */
    header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      background-color: rgba(255, 255, 255, 0.95);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      z-index: 1000;
      height: 70px;
      display: flex;
      align-items: center;
      transition: var(--transition);
    }

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

    .logo-area {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
    }

    .nav-menu {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .nav-link {
      color: var(--text-main);
      font-weight: 500;
      font-size: 0.9rem;
      padding: 5px 0;
      position: relative;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary-color);
      transition: var(--transition);
    }

    .nav-link:hover::after {
      width: 100%;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      border: none;
      background: transparent;
    }

    .nav-toggle span {
      display: block;
      width: 25px;
      height: 3px;
      background-color: var(--primary-dark);
      transition: var(--transition);
    }

    /* 1. Hero 首屏 - 纯文字渐变青科技风，无图片 */
    .hero-section {
      padding-top: 150px;
      padding-bottom: 100px;
      background: radial-gradient(circle at 80% 20%, var(--primary-light) 0%, transparent 60%), linear-gradient(180deg, #ffffff 0%, var(--bg-light) 100%);
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-tag {
      display: inline-block;
      padding: 6px 16px;
      background-color: var(--primary-light);
      color: var(--primary-dark);
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 20px;
      letter-spacing: 1px;
    }

    .hero-section h1 {
      font-size: 2.8rem;
      color: var(--primary-dark);
      line-height: 1.25;
      margin-bottom: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary-dark) 40%, var(--primary-color));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-section p {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 35px auto;
    }

    .hero-buttons {
      display: flex;
      justify-content: center;
      gap: 15px;
      margin-bottom: 40px;
    }

    /* 2. 关于我们 / 平台介绍 */
    .about-section {
      background-color: #ffffff;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.5rem;
      color: var(--primary-dark);
      margin-bottom: 15px;
    }

    .about-content p {
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .about-feat-item {
      padding: 15px;
      border-left: 3px solid var(--primary-color);
      background-color: var(--bg-light);
    }

    .about-feat-item h4 {
      font-size: 0.95rem;
      color: var(--primary-dark);
      margin-bottom: 5px;
    }

    .about-feat-item p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin: 0;
    }

    /* 3. 数据指标卡片 */
    .stats-section {
      background: linear-gradient(135deg, var(--primary-dark) 0%, #153846 100%);
      color: #ffffff;
      padding: 50px 0;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }

    .stat-item h3 {
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--secondary-color);
      margin-bottom: 5px;
    }

    .stat-item p {
      font-size: 0.9rem;
      color: #a5c3cf;
    }

    /* 4. 全平台AIGC服务 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .service-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 30px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 25px rgba(0, 173, 181, 0.1);
      border-color: var(--primary-color);
    }

    .service-card .icon-box {
      width: 50px;
      height: 50px;
      border-radius: 8px;
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
      color: var(--primary-color);
      font-weight: bold;
    }

    .service-card h3 {
      font-size: 1.15rem;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .service-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 聚合平台列表标签云 */
    .brand-pool {
      margin-top: 30px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .brand-tag {
      padding: 4px 10px;
      background-color: #eef7f7;
      color: var(--primary-dark);
      border-radius: 4px;
      font-size: 0.78rem;
      font-weight: 500;
      border: 1px solid #d8ecee;
    }

    /* 5. 一站式AIGC制作 (AI漫剧、一键生PPT等) */
    .production-section {
      background-color: #ffffff;
    }

    .production-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .production-media {
      display: flex;
      gap: 15px;
    }

    .production-media img {
      width: 100%;
      border-radius: 8px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    }

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

    .prod-item {
      display: flex;
      gap: 15px;
    }

    .prod-num {
      width: 32px;
      height: 32px;
      background-color: var(--primary-color);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-weight: bold;
      font-size: 0.9rem;
    }

    .prod-text h3 {
      font-size: 1.05rem;
      color: var(--primary-dark);
      margin-bottom: 5px;
    }

    .prod-text p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* 6. 全行业解决方案 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 25px;
      text-align: center;
      transition: var(--transition);
    }

    .solution-card:hover {
      border-color: var(--primary-color);
      background-color: var(--primary-light);
    }

    .solution-card h3 {
      font-size: 1.05rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .solution-card p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 7. 标准化AIGC流程 */
    .workflow-section {
      background-color: #ffffff;
    }

    .steps-container {
      display: flex;
      justify-content: space-between;
      position: relative;
    }

    .steps-container::before {
      content: '';
      position: absolute;
      top: 25px;
      left: 10%;
      right: 10%;
      height: 2px;
      background-color: var(--border-color);
      z-index: 1;
    }

    .step-card {
      position: relative;
      z-index: 2;
      background-color: #ffffff;
      width: 22%;
      text-align: center;
      padding: 0 10px;
    }

    .step-circle {
      width: 50px;
      height: 50px;
      background-color: var(--primary-light);
      border: 2px solid var(--primary-color);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 15px auto;
      font-weight: bold;
      font-size: 1.1rem;
    }

    .step-card h3 {
      font-size: 0.95rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 8. 技术标准 & 全国服务网络 */
    .standards-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .std-box, .net-box {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 30px;
    }

    .std-box h3, .net-box h3 {
      font-size: 1.25rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
      border-bottom: 2px solid var(--primary-light);
      padding-bottom: 8px;
    }

    .std-list li, .net-list li {
      margin-bottom: 12px;
      font-size: 0.9rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .std-list li::before, .net-list li::before {
      content: '✓';
      color: var(--primary-color);
      font-weight: bold;
    }

    /* 9. 客户案例中心 */
    .cases-section {
      background-color: #ffffff;
    }

    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .case-card {
      background-color: var(--bg-light);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      border: 1px solid var(--border-color);
    }

    .case-img-box {
      width: 45%;
      min-height: 200px;
      background-size: cover;
      background-position: center;
    }

    .case-info {
      width: 55%;
      padding: 25px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .case-tag {
      display: inline-block;
      align-self: flex-start;
      padding: 3px 8px;
      background-color: var(--primary-light);
      color: var(--primary-color);
      font-size: 0.72rem;
      font-weight: bold;
      border-radius: 3px;
      margin-bottom: 10px;
    }

    .case-info h3 {
      font-size: 1.1rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 15px;
    }

    /* 10. 对比评测 */
    .compare-section {
      background-color: var(--bg-light);
    }

    .compare-summary {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 30px;
      margin-bottom: 40px;
      background-color: #ffffff;
      padding: 25px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    }

    .rating-badge {
      text-align: center;
    }

    .rating-num {
      font-size: 3rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
    }

    .rating-stars {
      color: #ffb703;
      font-size: 1.2rem;
      margin-top: 5px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background-color: #ffffff;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.88rem;
      min-width: 700px;
    }

    th, td {
      padding: 15px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    th {
      background-color: var(--primary-dark);
      color: #ffffff;
      font-weight: 600;
    }

    tr:nth-child(even) {
      background-color: var(--bg-light);
    }

    .highlight-row {
      background-color: var(--primary-light) !important;
      font-weight: bold;
    }

    .badge-win {
      color: #2ec4b6;
      font-weight: bold;
    }

    /* 12. Token比价参考 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .token-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      transition: var(--transition);
    }

    .token-card:hover {
      transform: translateY(-3px);
      border-color: var(--primary-color);
      box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    }

    .token-card h3 {
      font-size: 1rem;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 15px;
    }

    .token-price span {
      font-size: 0.75rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    /* 13 & 14. 职业技术与人工智能培训 */
    .training-section {
      background-color: #ffffff;
    }

    .training-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .train-list {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .train-item {
      padding: 15px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      transition: var(--transition);
      background-color: var(--bg-light);
    }

    .train-item:hover {
      border-color: var(--primary-color);
      background-color: #ffffff;
    }

    .train-item h4 {
      font-size: 0.98rem;
      color: var(--primary-dark);
      margin-bottom: 5px;
    }

    .train-item p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 客户评论卡片 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }

    .review-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 25px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.02);
    }

    .review-content {
      font-size: 0.85rem;
      color: var(--text-main);
      margin-bottom: 15px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .author-avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--primary-light);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-weight: bold;
      font-size: 0.9rem;
    }

    .author-info h4 {
      font-size: 0.88rem;
      color: var(--primary-dark);
    }

    .author-info p {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* 18. AI术语百科 */
    .wiki-section {
      background-color: #ffffff;
    }

    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .wiki-card {
      border: 1px solid var(--border-color);
      background-color: var(--bg-light);
      border-radius: 6px;
      padding: 20px;
    }

    .wiki-card h3 {
      font-size: 0.98rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
      border-left: 3px solid var(--primary-color);
      padding-left: 8px;
    }

    .wiki-card p {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    /* 19. 行业资讯 / 知识库 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 25px;
    }

    .news-card {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .news-content {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-content h3 {
      font-size: 0.95rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .news-link {
      font-size: 0.82rem;
      color: var(--primary-color);
      font-weight: 600;
      margin-top: 15px;
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }

    /* 15 & 16 & 17. 常见问题 FAQ、自助排查、帮助中心 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 40px;
    }

    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-quest {
      padding: 18px 20px;
      font-weight: 600;
      font-size: 0.92rem;
      color: var(--primary-dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #ffffff;
    }

    .faq-quest::after {
      content: '+';
      font-size: 1.2rem;
      color: var(--primary-color);
      transition: var(--transition);
    }

    .faq-item.active .faq-quest::after {
      content: '-';
      transform: rotate(180deg);
    }

    .faq-answ {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: var(--bg-light);
    }

    .faq-answ-inner {
      padding: 18px 20px;
      font-size: 0.85rem;
      color: var(--text-main);
      border-top: 1px solid var(--border-color);
      line-height: 1.6;
    }

    .help-panel {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 25px;
    }

    .help-panel h3 {
      font-size: 1.1rem;
      color: var(--primary-dark);
      margin-bottom: 15px;
    }

    .diag-step {
      font-size: 0.85rem;
      margin-bottom: 12px;
      padding-left: 15px;
      position: relative;
    }

    .diag-step::before {
      content: '';
      position: absolute;
      left: 0;
      top: 7px;
      width: 6px;
      height: 6px;
      background-color: var(--primary-color);
      border-radius: 50%;
    }

    /* 20 & 21. 联系我们、智能需求匹配表单、加盟代理 */
    .contact-section {
      background-color: #ffffff;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
    }

    .contact-info-panel {
      background-color: var(--bg-light);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 35px;
    }

    .contact-info-panel h3 {
      font-size: 1.3rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .contact-detail-item {
      margin-bottom: 20px;
      font-size: 0.88rem;
    }

    .contact-detail-item strong {
      color: var(--primary-dark);
      display: block;
      margin-bottom: 4px;
    }

    .kefu-qr-box {
      margin-top: 25px;
      padding: 15px;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      text-align: center;
      display: inline-block;
    }

    .kefu-qr-box img {
      width: 120px;
      height: 120px;
      display: block;
      margin: 0 auto 10px auto;
    }

    .kefu-qr-box p {
      font-size: 0.78rem;
      color: var(--text-muted);
      margin: 0;
    }

    .form-panel {
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 35px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    }

    .form-panel h3 {
      font-size: 1.3rem;
      color: var(--primary-dark);
      margin-bottom: 20px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-dark);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 10px 15px;
      border: 1px solid var(--border-color);
      border-radius: 5px;
      font-size: 0.88rem;
      outline: none;
      transition: var(--transition);
      background-color: var(--bg-light);
    }

    .form-control:focus {
      border-color: var(--primary-color);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.1);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 页脚 */
    footer {
      background-color: var(--primary-dark);
      color: #ffffff;
      padding: 50px 0 20px 0;
    }

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

    .footer-brand h3 {
      color: #ffffff;
      font-size: 1.3rem;
      margin-bottom: 15px;
    }

    .footer-brand p {
      font-size: 0.82rem;
      color: #a5c3cf;
      line-height: 1.8;
    }

    .footer-links-group {
      display: flex;
      flex-direction: column;
      gap: 15px;
    }

    .footer-links-group h4 {
      font-size: 0.95rem;
      color: var(--secondary-color);
      border-left: 2px solid var(--primary-color);
      padding-left: 8px;
    }

    .footer-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px 20px;
    }

    .footer-links-list a {
      color: #a5c3cf;
      font-size: 0.82rem;
    }

    .footer-links-list a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.78rem;
      color: #a5c3cf;
    }

    .footer-bottom-links {
      display: flex;
      gap: 15px;
    }

    .footer-bottom-links a {
      color: #a5c3cf;
    }

    /* 悬浮客服面板 */
    .float-panel {
      position: fixed;
      right: 20px;
      bottom: 100px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background-color: var(--primary-color);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 10px rgba(0,0,0,0.15);
      cursor: pointer;
      position: relative;
      transition: var(--transition);
      font-size: 1.2rem;
      border: none;
    }

    .float-btn:hover {
      background-color: var(--secondary-color);
      transform: scale(1.05);
    }

    .float-qr-pop {
      position: absolute;
      right: 60px;
      bottom: 0;
      background-color: #ffffff;
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 6px;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      display: none;
      text-align: center;
      width: 140px;
    }

    .float-qr-pop img {
      width: 110px;
      height: 110px;
      display: block;
      margin-bottom: 5px;
    }

    .float-qr-pop p {
      font-size: 0.7rem;
      color: var(--text-dark);
      margin: 0;
    }

    .float-btn:hover .float-qr-pop {
      display: block;
    }

    .scroll-top-btn {
      display: none;
    }

    /* 移动端响应式适配 */
    @media (max-width: 992px) {
      .about-grid, .production-grid, .training-grid, .faq-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .services-grid, .reviews-grid, .wiki-grid, .news-grid {
        grid-template-columns: 1fr 1fr;
      }
      .solutions-grid {
        grid-template-columns: 1fr 1fr;
      }
      .steps-container {
        flex-direction: column;
        gap: 20px;
      }
      .steps-container::before {
        display: none;
      }
      .step-card {
        width: 100%;
        text-align: left;
        display: flex;
        align-items: center;
        gap: 15px;
        background-color: var(--bg-light);
        padding: 15px;
        border-radius: 6px;
      }
      .step-circle {
        margin: 0;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      header {
        height: 60px;
      }
      .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background-color: #ffffff;
        flex-direction: column;
        padding: 30px 20px;
        gap: 25px;
        transition: var(--transition);
        box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        align-items: flex-start;
      }
      .nav-menu.active {
        left: 0;
      }
      .nav-toggle {
        display: flex;
      }
      .hero-section h1 {
        font-size: 2rem;
      }
      .stats-grid {
        grid-template-columns: 1fr 1fr;
      }
      .services-grid, .reviews-grid, .wiki-grid, .news-grid, .solutions-grid {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .case-card {
        flex-direction: column;
      }
      .case-img-box {
        width: 100%;
        height: 180px;
      }
      .case-info {
        width: 100%;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
      }
    }