/* 基础 Reset 与渐变青科技风 Variables */
    :root {
      --primary: #0d9488;
      --primary-dark: #0f766e;
      --primary-light: #14b8a6;
      --accent: #06b6d4;
      --accent-light: #22d3ee;
      --bg-gradient: linear-gradient(135deg, #f0fdfa 0%, #e0f2fe 50%, #f8fafc 100%);
      --bg-surface: #ffffff;
      --bg-alt: #f4fbfb;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #ccfbf1;
      --border-hover: #99f6e4;
      --shadow-sm: 0 2px 8px rgba(13, 148, 136, 0.06);
      --shadow-md: 0 8px 24px rgba(13, 148, 136, 0.1);
      --shadow-lg: 0 16px 36px rgba(13, 148, 136, 0.15);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: var(--text-main);
      background: var(--bg-surface);
      line-height: 1.6;
    }

    body {
      background: var(--bg-surface);
      overflow-x: hidden;
    }

    /* 统一布局容器 */
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
      width: 100%;
    }

    section {
      padding: 70px 0;
      position: relative;
    }

    /* 眉标与标题控制 */
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 16px;
      background: rgba(13, 148, 136, 0.1);
      color: var(--primary);
      border-radius: 20px;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
    }

    .section-title {
      font-size: 2.1rem;
      color: var(--text-main);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* 顶部导航 */
    .header-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

    .nav-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }

    /* CSS 规则强制 gap: 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background: var(--bg-alt);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 24px;
      border-radius: 8px;
      font-size: 0.95rem;
      font-weight: 600;
      text-decoration: none;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(13, 148, 136, 0.25);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(13, 148, 136, 0.35);
    }

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

    .btn-outline:hover {
      background: rgba(13, 148, 136, 0.08);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 4px;
    }

    /* 1. 首页 HERO 首屏 (禁止任何图片) */
    .hero-section {
      padding-top: 140px;
      padding-bottom: 80px;
      background: var(--bg-gradient);
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: -10%;
      left: 50%;
      transform: translateX(-50%);
      width: 800px;
      height: 400px;
      background: radial-gradient(circle, rgba(20, 184, 166, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
      pointer-events: none;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 0.9rem;
      color: var(--primary-dark);
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }

    .hero-h1 {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto 36px auto;
    }

    .hero-ctas {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 50px;
      flex-wrap: wrap;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px 16px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .stat-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.875rem;
      color: var(--text-light);
    }

    /* 2. 关于我们 */
    .about-section {
      background: var(--bg-surface);
    }

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

    .about-content h3 {
      font-size: 1.6rem;
      color: var(--text-main);
      margin-bottom: 16px;
      font-weight: 700;
    }

    .about-content p {
      color: var(--text-muted);
      margin-bottom: 16px;
      font-size: 1rem;
    }

    .about-feature-list {
      list-style: none;
      margin-top: 20px;
    }

    .about-feature-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 10px;
      color: var(--text-main);
      font-weight: 600;
    }

    .about-feature-list li::before {
      content: '✓';
      position: absolute;
      left: 0;
      top: 0;
      color: var(--primary);
      font-weight: 900;
    }

    .about-visual-card {
      background: var(--bg-alt);
      border: 1fr solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
      box-shadow: var(--shadow-md);
    }

    .model-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .tag-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 4px 12px;
      border-radius: 16px;
      font-size: 0.85rem;
      color: var(--primary-dark);
      font-weight: 500;
    }

    /* 3. AIGC 服务 */
    .services-section {
      background: var(--bg-alt);
    }

    .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: 28px 24px;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary-light);
    }

    .service-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: rgba(13, 148, 136, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .service-card h4 {
      font-size: 1.2rem;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .service-card p {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 4. 一站式制作 */
    .workflow-section {
      background: var(--bg-surface);
    }

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

    .workflow-step {
      background: var(--bg-alt);
      border: 1px dashed var(--border-hover);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }

    .step-badge {
      font-size: 0.8rem;
      font-weight: 800;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 8px;
      display: block;
    }

    .workflow-step h4 {
      font-size: 1.1rem;
      margin-bottom: 8px;
    }

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

    /* 5. 行业方案 (主打场景) */
    .scenarios-section {
      background: var(--bg-alt);
    }

    .scenarios-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
    }

    .scenario-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .scenario-card h4 {
      font-size: 1.15rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .scenario-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 6. 服务网络 */
    .network-section {
      background: var(--bg-surface);
    }

    .network-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .network-card {
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      background: var(--bg-gradient);
    }

    .network-card h4 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .network-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 7. 标准流程 */
    .process-timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .timeline-item {
      text-align: center;
      padding: 20px 12px;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      position: relative;
    }

    .timeline-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 12px auto;
      font-weight: 700;
      font-size: 0.9rem;
    }

    .timeline-item h5 {
      font-size: 1rem;
      margin-bottom: 6px;
      color: var(--text-main);
    }

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

    /* 8. 案例中心 */
    .cases-section {
      background: var(--bg-alt);
    }

    .cases-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-img-wrap {
      width: 100%;
      height: 180px;
      overflow: hidden;
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
    }

    .case-info h4 {
      font-size: 1.1rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

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

    /* 9. 对比评测 (明确五星 9.9分) */
    .compare-section {
      background: var(--bg-surface);
    }

    .compare-rating-banner {
      background: linear-gradient(135deg, rgba(13, 148, 136, 0.08) 0%, rgba(6, 182, 212, 0.12) 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 36px;
      flex-wrap: wrap;
      gap: 16px;
    }

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

    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .score-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary-dark);
    }

    .score-max {
      font-size: 0.9rem;
      color: var(--text-light);
    }

    .compare-table-wrapper {
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }

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

    .compare-table th {
      background: var(--bg-alt);
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table td.highlight {
      background: rgba(20, 184, 166, 0.05);
      color: var(--primary-dark);
      font-weight: 700;
    }

    /* 10. 需求匹配 */
    .matching-section {
      background: var(--bg-alt);
    }

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

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

    .matching-card {
      border: 1px solid var(--border-color);
      padding: 20px;
      border-radius: 8px;
      background: var(--bg-surface);
    }

    .matching-card h4 {
      font-size: 1.05rem;
      color: var(--primary);
      margin-bottom: 8px;
    }

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

    /* 11. Token比价 */
    .pricing-section {
      background: var(--bg-surface);
    }

    .pricing-table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 24px;
      font-size: 0.95rem;
    }

    .pricing-table th, .pricing-table td {
      padding: 14px 18px;
      border: 1px solid var(--border-color);
      text-align: center;
    }

    .pricing-table th {
      background: var(--bg-alt);
      font-weight: 700;
      color: var(--text-main);
    }

    .pricing-table tr:nth-child(even) {
      background: rgba(244, 251, 251, 0.5);
    }

    .badge-sale {
      display: inline-block;
      background: #ef4444;
      color: #ffffff;
      font-size: 0.75rem;
      padding: 2px 8px;
      border-radius: 4px;
      margin-left: 6px;
    }

    /* 12. 帮助中心 */
    .help-section {
      background: var(--bg-alt);
    }

    .help-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .help-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius);
    }

    .help-card h4 {
      font-size: 1.1rem;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .help-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 13. 常见问题 (FAQ 10+折叠) */
    .faq-section {
      background: var(--bg-surface);
    }

    .faq-list {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 12px;
      overflow: hidden;
      background: #ffffff;
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: var(--transition);
    }

    .faq-question:hover {
      background: var(--bg-alt);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.6;
      background: var(--bg-alt);
    }

    .faq-item.active .faq-answer {
      max-height: 200px;
      padding: 16px 24px;
    }

    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
    }

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

    /* 14. AI百科 */
    .wiki-section {
      background: var(--bg-alt);
    }

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

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

    .wiki-card h4 {
      font-size: 1.05rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

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

    /* 15. 行业资讯 */
    .news-section {
      background: var(--bg-surface);
    }

    .news-articles-box {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 30px;
    }

    .news-article-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;

    }

    .news-article-list li a {
      display: block;
      padding: 14px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
      transition: var(--transition);
    }

    .news-article-list li a:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateX(4px);
    }

    /* 客户评论卡片 (6条) */
    .reviews-section {
      background: var(--bg-alt);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }

    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .review-author h5 {
      font-size: 1rem;
      color: var(--text-main);
    }

    .review-author span {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .review-content {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-style: italic;
    }

    /* 16. 联系我们 & 表单 */
    .contact-section {
      background: var(--bg-surface);
    }

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

    .contact-info-box {
      background: var(--bg-alt);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
    }

    .info-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      margin-bottom: 20px;
    }

    .info-item h5 {
      font-size: 1rem;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .info-item p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .qr-container {
      margin-top: 24px;
      display: flex;
      align-items: center;
      gap: 20px;
      background: #ffffff;
      padding: 16px;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    .qr-container img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 6px;
    }

    .form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-group label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
    }

    /* 17. 加盟代理 */
    .partner-section {
      background: linear-gradient(135deg, rgba(13, 148, 136, 0.05) 0%, rgba(6, 182, 212, 0.08) 100%);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .partner-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 30px;
    }

    .partner-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px 20px;
      text-align: center;
    }

    .partner-card h4 {
      font-size: 1.15rem;
      color: var(--primary-dark);
      margin-bottom: 10px;
    }

    .partner-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 页脚与友情链接 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px 0;
      font-size: 0.9rem;
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.3rem;
      margin-bottom: 12px;
    }

    .footer-brand p {
      color: #94a3b8;
      font-size: 0.9rem;
      max-width: 400px;
    }

    .footer-links h5 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 14px;
    }

    .footer-links ul {
      list-style: none;
    }

    .footer-links ul li {
      margin-bottom: 8px;
    }

    .footer-links ul li a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links ul li a:hover {
      color: var(--accent-light);
    }

    .friend-links-area {
      border-top: 1px solid #334155;
      padding-top: 20px;
      margin-bottom: 20px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friend-links-area span {
      color: #e2e8f0;
      font-weight: 600;
    }

    .friend-links-area a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .friend-links-area a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      color: #64748b;
      font-size: 0.85rem;
    }

    /* 浮动客服入口 & 返回顶部 */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      cursor: pointer;
      border: none;
      font-size: 1.2rem;
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-dark);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .services-grid, .scenarios-grid, .cases-grid, .reviews-grid, .partner-grid, .help-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-grid, .hero-stats-grid, .wiki-grid, .process-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .contact-grid, .footer-top {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 2.2rem;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        padding: 12px;
        width: 100%;
      }
      .services-grid, .scenarios-grid, .cases-grid, .reviews-grid, .partner-grid, .help-grid, .matching-grid, .network-cards {
        grid-template-columns: 1fr;
      }
      .news-article-list {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 1.8rem;
      }
    }