/* 全局变量与复位 - 热烈红企业风 */
    :root {
      --primary-red: #d32f2f;
      --primary-dark: #b71c1c;
      --primary-light: #ffebee;
      --accent-gold: #d97706;
      --accent-orange: #ea580c;
      --text-dark: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --bg-main: #fcf8f8;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --border-color: #fca5a5;
      --border-light: #fee2e2;
      --shadow-sm: 0 2px 8px rgba(183, 28, 28, 0.06);
      --shadow-md: 0 8px 24px rgba(183, 28, 28, 0.1);
      --shadow-lg: 0 16px 36px rgba(183, 28, 28, 0.14);
      --max-width: 1200px;
      --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, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-dark);
      line-height: 1.6;
    }

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

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

    a:hover {
      color: var(--primary-dark);
    }

    /* 全局通用容器 */
    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-dark);
      letter-spacing: 0.5px;
    }

    /* 明确要求 .nav-links gap 属性为 0 */
    .nav-links {
      display: flex;
      gap: 0;
      list-style: none;
      align-items: center;
    }

    .nav-links li {
      position: relative;
    }

    .nav-links a {
      display: block;
      padding: 10px 14px;
      font-size: 0.92rem;
      font-weight: 500;
      color: var(--text-dark);
      border-radius: 6px;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary-red);
      background-color: var(--primary-light);
    }

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

    .btn-nav {
      padding: 8px 18px;
      background: linear-gradient(135deg, var(--primary-red), var(--primary-dark));
      color: #ffffff !important;
      font-weight: 600;
      font-size: 0.9rem;
      border-radius: 50px;
      box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
    }

    .btn-nav:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(211, 47, 47, 0.4);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-dark);
      cursor: pointer;
      padding: 5px;
    }

    /* 区域统一通用规则 */
    section {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 45px auto;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary-red);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 12px;
      border: 1px solid var(--border-light);
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-dark);
      line-height: 1.3;
      margin-bottom: 12px;
    }

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

    /* 1. Hero 首屏 - 严禁包含图片 */
    .hero-section {
      padding: 80px 0 70px 0;
      background: linear-gradient(180deg, #ffffff 0%, #fff5f5 100%);
      border-bottom: 1px solid var(--border-light);
      text-align: center;
    }

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

    .hero-title {
      font-size: 2.6rem;
      font-weight: 900;
      color: var(--primary-dark);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 35px auto;
    }

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

    .btn-hero-primary {
      padding: 14px 36px;
      background: linear-gradient(135deg, #e53935 0%, #b71c1c 100%);
      color: #ffffff !important;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: 50px;
      box-shadow: 0 8px 24px rgba(211, 47, 47, 0.35);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(211, 47, 47, 0.45);
    }

    .btn-hero-secondary {
      padding: 14px 32px;
      background: #ffffff;
      color: var(--primary-red) !important;
      border: 2px solid var(--primary-red);
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 50px;
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 980px;
      margin: 0 auto;
    }

    .metric-card {
      background: #ffffff;
      padding: 22px 15px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .metric-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-red);
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 0.88rem;
      color: var(--text-muted);
      font-weight: 500;
    }

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

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

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

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

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

    .about-features li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 12px;
      font-weight: 600;
      color: var(--text-dark);
    }

    .about-features li::before {
      content: "✓";
      position: absolute;
      left: 0;
      color: var(--primary-red);
      font-weight: 900;
    }

    .models-tag-cloud {
      background: var(--bg-main);
      padding: 25px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
    }

    .models-tag-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--primary-dark);
      margin-bottom: 15px;
    }

    .tag-container {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .model-tag {
      padding: 5px 12px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 0.85rem;
      color: var(--text-dark);
      font-weight: 500;
    }

    /* 3. AIGC 服务与场景 */
    .services-section {
      background: var(--bg-main);
    }

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

    .service-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

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

    .service-icon {
      width: 48px;
      height: 48px;
      background: var(--primary-light);
      color: var(--primary-red);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .service-card h4 {
      font-size: 1.2rem;
      color: var(--text-dark);
      margin-bottom: 10px;
      font-weight: 700;
    }

    .service-card p {
      font-size: 0.93rem;
      color: var(--text-muted);
      flex-grow: 1;
      margin-bottom: 15px;
    }

    .service-badge {
      display: inline-block;
      align-self: flex-start;
      padding: 3px 10px;
      background: #fff7ed;
      color: var(--accent-orange);
      border: 1px solid #ffedd5;
      border-radius: 4px;
      font-size: 0.78rem;
      font-weight: 600;
    }

    /* 4. 一站式制作 */
    .creation-section {
      background: #ffffff;
    }

    .creation-box {
      background: linear-gradient(135deg, #fff5f5 0%, #ffffff 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
    }

    .creation-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .creation-item {
      background: #ffffff;
      padding: 22px;
      border-radius: 10px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .creation-item h4 {
      font-size: 1.1rem;
      color: var(--primary-dark);
      margin-bottom: 8px;
    }

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

    /* 5. 行业方案与网络 */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      text-align: center;
    }

    .solution-card h4 {
      font-size: 1.1rem;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

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

    /* 6. 服务网络 */
    .network-section {
      background: #ffffff;
    }

    .network-badge-group {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }

    .network-badge {
      padding: 10px 20px;
      background: var(--bg-main);
      border: 1px solid var(--border-light);
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-dark);
    }

    /* 7. 标准流程 */
    .workflow-section {
      background: var(--bg-main);
    }

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

    .step-card {
      background: #ffffff;
      padding: 25px 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: var(--primary-red);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 15px;
    }

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

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

    /* 8. 案例中心 */
    .cases-section {
      background: #ffffff;
    }

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

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

    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #f3f4f6;
    }

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

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 20px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-dark);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      margin-bottom: 12px;
    }

    /* 9. 对比评测 - 必须包含 9.9分 与 推荐五星 */
    .eval-section {
      background: linear-gradient(180deg, #fff5f5 0%, #ffffff 100%);
    }

    .eval-header-box {
      background: #ffffff;
      border: 2px solid var(--primary-red);
      border-radius: var(--radius);
      padding: 30px;
      text-align: center;
      max-width: 600px;
      margin: 0 auto 40px auto;
      box-shadow: var(--shadow-md);
    }

    .eval-rating {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary-red);
      line-height: 1;
      margin-bottom: 8px;
    }

    .eval-stars {
      color: var(--accent-gold);
      font-size: 1.4rem;
      margin-bottom: 8px;
    }

    .eval-label {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-dark);
    }

    .table-responsive {
      overflow-x: auto;
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
    }

    .eval-table th,
    .eval-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.93rem;
    }

    .eval-table th {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-weight: 700;
    }

    .eval-table tr:hover {
      background: #fffafa;
    }

    .highlight-cell {
      font-weight: 700;
      color: var(--primary-red);
    }

    /* 10. 需求匹配工具 */
    .match-section {
      background: #ffffff;
    }

    .match-box {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 35px;
      max-width: 860px;
      margin: 0 auto;
    }

    .match-option-group {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    .match-btn {
      padding: 14px;
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: 8px;
      text-align: center;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.95rem;
      transition: var(--transition);
    }

    .match-btn.active,
    .match-btn:hover {
      border-color: var(--primary-red);
      background: var(--primary-light);
      color: var(--primary-red);
    }

    .match-result {
      background: #ffffff;
      padding: 20px;
      border-radius: 8px;
      border: 1px dashed var(--primary-red);
      font-size: 0.95rem;
      color: var(--text-dark);
    }

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

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

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

    .token-card h4 {
      font-size: 1.1rem;
      color: var(--primary-dark);
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary-red);
      margin-bottom: 10px;
    }

    .token-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 12 & 13. FAQ 与 帮助中心 */
    .faq-section {
      background: #ffffff;
    }

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

    .faq-item {
      border: 1px solid var(--border-light);
      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: 1rem;
      font-weight: 700;
      color: var(--text-dark);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: #fffafa;
    }

    .faq-answer p {
      padding: 0 24px 18px 24px;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 14. 客户评论 */
    .reviews-section {
      background: var(--bg-main);
    }

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

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

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

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-red);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    .user-info h5 {
      font-size: 0.95rem;
      color: var(--text-dark);
      font-weight: 700;
    }

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

    .review-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-style: italic;
    }

    /* 15. 行业资讯与最新文章 */
    .articles-section {
      background: #ffffff;
    }

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

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

    .article-title {
      font-size: 1.02rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .article-title a {
      color: var(--text-dark);
    }

    .article-title a:hover {
      color: var(--primary-red);
    }

    .article-meta {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 17. 加盟代理 */
    .agent-section {
      background: linear-gradient(135deg, #b71c1c 0%, #8e0000 100%);
      color: #ffffff;
      border-radius: var(--radius);
      margin: 40px auto;
      padding: 50px 30px;
      text-align: center;
    }

    .agent-section h3 {
      font-size: 2rem;
      font-weight: 800;
      margin-bottom: 15px;
    }

    .agent-section p {
      font-size: 1.05rem;
      opacity: 0.9;
      max-width: 700px;
      margin: 0 auto 30px auto;
    }

    /* 16. 联系我们 & 表单 */
    .contact-section {
      background: #ffffff;
    }

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

    .contact-info-box {
      background: var(--bg-main);
      padding: 30px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
    }

    .contact-item {
      margin-bottom: 20px;
    }

    .contact-item h5 {
      font-size: 0.95rem;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }

    .contact-item p {
      font-size: 0.92rem;
      color: var(--text-muted);
    }

    .qr-wrap {
      margin-top: 20px;
      display: inline-block;
      padding: 10px;
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: 8px;
    }

    .qr-wrap img {
      width: 140px;
      height: 140px;
      object-fit: cover;
      display: block;
    }

    .contact-form-box {
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

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

    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      font-size: 0.92rem;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--primary-red);
      box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, var(--primary-red), var(--primary-dark));
      color: #ffffff;
      font-weight: 700;
      font-size: 1rem;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
    }

    .btn-submit:hover {
      opacity: 0.95;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #111827;
      color: #e5e7eb;
      padding: 60px 0 30px 0;
      border-top: 3px solid var(--primary-red);
    }

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

    .footer-col h5 {
      color: #ffffff;
      font-size: 1.05rem;
      margin-bottom: 18px;
      font-weight: 700;
    }

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

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

    .footer-links-list a {
      color: #9ca3af;
      font-size: 0.88rem;
    }

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

    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-links a {
      color: #9ca3af;
      font-size: 0.85rem;
      background: #1f2937;
      padding: 4px 10px;
      border-radius: 4px;
    }

    .friend-links a:hover {
      color: #ffffff;
      background: var(--primary-red);
    }

    .footer-bottom {
      border-top: 1px solid #374151;
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #9ca3af;
      flex-wrap: wrap;
      gap: 15px;
    }

    .ai-page-home-link {
      color: #ffffff !important;
      font-weight: 600;
    }

    /* 浮动客服入口 */
    .floating-contact {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      background: var(--primary-red);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
      font-weight: 700;
      font-size: 0.85rem;
      cursor: pointer;
      text-decoration: none;
    }

    .float-btn:hover {
      transform: scale(1.08);
      background: var(--primary-dark);
    }

    /* 响应式适配 */
    @media (max-width: 992px) {
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid,
      .cases-grid,
      .reviews-grid,
      .articles-grid,
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .solutions-grid,
      .steps-wrapper {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .contact-grid,
      .creation-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 2.1rem;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 15px 0;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
      }

      .nav-links.active {
        display: flex;
      }

      .mobile-menu-btn {
        display: block;
      }

      .services-grid,
      .cases-grid,
      .reviews-grid,
      .articles-grid,
      .token-grid,
      .solutions-grid,
      .steps-wrapper,
      .match-option-group {
        grid-template-columns: 1fr;
      }

      .hero-metrics {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .hero-title {
        font-size: 1.7rem;
      }
    }