/* 基础重置与全局变量 */
    :root {
      --primary: #5856d6;
      --secondary: #ff2d55;
      --accent: #00c7ec;
      --dark: #1c1c1e;
      --light-bg: #f8f9fa;
      --text: #2c2c2e;
      --text-muted: #6c757d;
      --border-color: #e5e5ea;
      --card-bg: #ffffff;
      --glow: 0 0 20px rgba(88, 86, 214, 0.15);
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
      --container-width: 1200px;
    }

    * {
      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);
      background-color: var(--light-bg);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
    }

    /* 容器规范 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    section {
      padding: 80px 0;
      position: relative;
    }

    /* 高饱和艳彩风的通用微调装饰 */
    .section-title {
      font-size: 2.2rem;
      font-weight: 800;
      text-align: center;
      margin-bottom: 16px;
      color: var(--dark);
      letter-spacing: -0.5px;
    }

    .section-title span {
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-subtitle {
      text-align: center;
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto 50px auto;
      font-size: 1.1rem;
    }

    /* 按钮样式 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      text-decoration: none;
      transition: var(--transition);
      gap: 8px;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #7a5cff);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(88, 86, 214, 0.4);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(88, 86, 214, 0.6);
    }

    .btn-secondary {
      background: linear-gradient(135deg, var(--secondary), #ff527b);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(255, 45, 85, 0.4);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 45, 85, 0.6);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
    }

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

    /* 导航栏 */
    header {
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      transition: var(--transition);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .ai-page-logo {
      height: 40px;
      object-fit: contain;
    }

    .brand-name {
      font-size: 1.4rem;
      font-weight: 800;
      color: var(--dark);
      background: linear-gradient(90deg, var(--primary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-menu {
      display: flex;
      list-style: none;
      align-items: center;
    }

    .nav-item a, .ai-page-home-link {
      text-decoration: none;
      color: var(--text);
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition);
      padding: 6px 12px;
      border-radius: 6px;
    }

    .nav-item a:hover, .ai-page-home-link:hover {
      color: var(--primary);
      background: rgba(88, 86, 214, 0.08);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      font-size: 1.5rem;
      color: var(--dark);
    }

    /* 首屏 Hero (禁止有图片) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(0, 199, 236, 0.15), transparent),
                  radial-gradient(circle at 20% 80%, rgba(255, 45, 85, 0.1), transparent),
                  #ffffff;
      padding: 120px 0 100px 0;
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: linear-gradient(90deg, rgba(88, 86, 214, 0.1), rgba(255, 45, 85, 0.1));
      border: 1px solid rgba(88, 86, 214, 0.2);
      border-radius: 30px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3.5rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--dark);
      max-width: 900px;
      margin: 0 auto 24px auto;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.25rem;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto 36px auto;
    }

    .hero-btn-group {
      display: flex;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }

    /* 数据指标卡片 */
    .stats-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .stat-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      transition: var(--transition);
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
    }

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

    .stat-num {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 关于我们 & 平台介绍 */
    .about-section {
      background: var(--card-bg);
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .about-content h3 {
      font-size: 1.8rem;
      margin-bottom: 16px;
      color: var(--dark);
    }

    .about-content p {
      color: var(--text-muted);
      margin-bottom: 24px;
      font-size: 1.05rem;
    }

    .about-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .about-tag {
      padding: 8px 16px;
      background: var(--light-bg);
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text);
      border: 1px solid var(--border-color);
    }

    .platforms-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
    }

    .platform-item {
      background: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 12px;
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text);
      transition: var(--transition);
    }

    .platform-item:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    /* AIGC 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .service-card {
      background: var(--card-bg);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 36px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 15px 30px rgba(88, 86, 214, 0.1);
      border-color: rgba(88, 86, 214, 0.3);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon {
      font-size: 2.5rem;
      margin-bottom: 24px;
      display: inline-block;
    }

    .service-card h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark);
    }

    .service-card p {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 16px;
    }

    .service-features {
      list-style: none;
      padding-left: 0;
    }

    .service-features li {
      font-size: 0.85rem;
      color: var(--text);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-features li::before {
      content: '✓';
      color: var(--accent);
      font-weight: bold;
    }

    /* 一站式制作与标准化流程 */
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .workflow-step {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px 24px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .workflow-step:hover {
      border-color: var(--secondary);
      box-shadow: 0 10px 20px rgba(255, 45, 85, 0.05);
    }

    .step-num {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--secondary), #ff527b);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 20px auto;
    }

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

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

    /* 行业解决方案与全国服务网络 */
    .map-section {
      background: var(--card-bg);
    }

    .map-container {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }

    .network-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .network-item {
      background: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 16px;
      font-size: 0.9rem;
    }

    .network-item strong {
      display: block;
      color: var(--primary);
      margin-bottom: 4px;
      font-size: 1rem;
    }

    .solution-tabs {
      display: flex;
      justify-content: center;
      gap: 12px;
      margin-bottom: 36px;
    }

    .tab-btn {
      padding: 10px 24px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 30px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
    }

    .tab-btn.active, .tab-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    .solution-content {
      background: var(--card-bg);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 40px;
    }

    /* 对比评测表格 */
    .compare-table-wrapper {
      overflow-x: auto;
      background: var(--card-bg);
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(0,0,0,0.02);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 800px;
    }

    th, td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    th {
      background-color: #fafdff;
      color: var(--dark);
      font-weight: 700;
    }

    tr:last-child td {
      border-bottom: none;
    }

    .highlight-col {
      background-color: rgba(88, 86, 214, 0.03);
      font-weight: 600;
    }

    .badge-star {
      background: linear-gradient(135deg, #ff9500, #ffcc00);
      color: #ffffff;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: bold;
    }

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

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

    .token-card {
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      background: var(--light-bg);
      text-align: center;
      transition: var(--transition);
    }

    .token-card.best-value {
      border: 2px solid var(--primary);
      background: #ffffff;
      position: relative;
    }

    .token-card.best-value::after {
      content: '全网低价';
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      padding: 2px 10px;
      font-size: 0.75rem;
      border-radius: 10px;
      font-weight: bold;
    }

    .token-card h4 {
      font-size: 1.2rem;
      margin-bottom: 12px;
    }

    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--secondary);
      margin: 12px 0;
    }

    /* 培训业务 */
    .training-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .training-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 16px;
      text-align: center;
      transition: var(--transition);
    }

    .training-card:hover {
      border-color: var(--accent);
      box-shadow: 0 8px 24px rgba(0, 199, 236, 0.15);
      transform: translateY(-5px);
    }

    .training-card h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .training-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 案例展示中心 */
    .case-section {
      background: var(--card-bg);
    }

    .case-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }

    .case-main {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .case-images-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 15px;
    }

    .ai-page-image {
      border-radius: 12px;
      width: 100%;
      object-fit: cover;
      height: 220px;
      transition: var(--transition);
    }

    .ai-page-image:hover {
      transform: scale(1.02);
    }

    .case-side-card {
      background: var(--light-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-side-img {
      border-radius: 8px;
      width: 100%;
      height: 180px;
      object-fit: cover;
      margin-bottom: 16px;
    }

    /* 用户评论 */
    .comments-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 40px;
    }

    .comment-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      transition: var(--transition);
    }

    .comment-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(0,0,0,0.03);
    }

    .comment-text {
      font-style: italic;
      color: var(--text);
      font-size: 0.95rem;
      margin-bottom: 20px;
    }

    .comment-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .comment-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1.1rem;
    }

    .comment-info h5 {
      font-size: 0.95rem;
      color: var(--dark);
    }

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

    /* 需求匹配与联系我们表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 50px;
      align-items: stretch;
    }

    .contact-info-panel {
      background: linear-gradient(135deg, var(--dark), #2c2c2e);
      color: #ffffff;
      padding: 40px;
      border-radius: 16px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-panel h3 {
      font-size: 1.8rem;
      margin-bottom: 20px;
      background: linear-gradient(90deg, #ffffff, var(--accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .contact-details {
      list-style: none;
      margin-bottom: 30px;
    }

    .contact-details li {
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      color: rgba(255, 255, 255, 0.85);
    }

    .contact-details strong {
      color: var(--accent);
    }

    .contact-qrcode {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 16px;
      border-radius: 12px;
      text-align: center;
      max-width: 200px;
    }

    .contact-qrcode img {
      width: 100%;
      height: auto;
      border-radius: 6px;
      margin-bottom: 8px;
    }

    .contact-qrcode span {
      font-size: 0.8rem;
      color: rgba(255, 255, 255, 0.7);
    }

    .form-panel {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
    }

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

    .form-label {
      display: block;
      margin-bottom: 8px;
      font-weight: 600;
      font-size: 0.9rem;
      color: var(--dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(88, 86, 214, 0.15);
    }

    /* FAQ 折叠面板 */
    .faq-section {
      background: var(--card-bg);
    }

    .faq-container {
      max-width: 800px;
      margin: 0 auto;
    }

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

    .faq-trigger {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      color: var(--dark);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .faq-trigger::after {
      content: '+';
      font-size: 1.3rem;
      font-weight: bold;
      transition: var(--transition);
    }

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

    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background: var(--card-bg);
      border-top: 0 solid var(--border-color);
    }

    .faq-item.active .faq-content {
      border-top-width: 1px;
    }

    .faq-inner {
      padding: 18px 24px;
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    /* 百科与资讯 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .news-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .news-card:hover {
      border-color: var(--primary);
      box-shadow: 0 10px 20px rgba(88, 86, 214, 0.05);
    }

    .news-meta {
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }

    .news-card h4 {
      font-size: 1.1rem;
      margin-bottom: 12px;
      color: var(--dark);
      line-height: 1.4;
    }

    .news-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .news-link {
      color: var(--primary);
      text-decoration: none;
      font-weight: 600;
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .news-link:hover {
      text-decoration: underline;
    }

    /* 友情链接与页脚 */
    footer {
      background: var(--dark);
      color: rgba(255, 255, 255, 0.7);
      padding: 60px 0 30px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 0.9rem;
    }

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

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 16px;
    }

    .footer-links h5, .footer-contact h5 {
      color: #ffffff;
      margin-bottom: 16px;
      font-size: 1rem;
    }

    .footer-links-list {
      list-style: none;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }

    .footer-links-list a {
      color: rgba(255, 255, 255, 0.7);
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links-list a:hover {
      color: var(--accent);
    }

    .footer-social-wrap {
      display: flex;
      gap: 16px;
      margin-top: 16px;
      align-items: center;
    }

    .footer-social-item {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 0.75rem;
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-social-item img {
      width: 80px;
      height: 80px;
      border-radius: 4px;
      margin-bottom: 4px;
    }

    .friend-links-section {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      margin-bottom: 24px;
    }

    .friend-links-title {
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.5);
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .friend-links-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-wrapper a {
      color: rgba(255, 255, 255, 0.5);
      text-decoration: none;
      font-size: 0.85rem;
      transition: var(--transition);
    }

    .friend-links-wrapper a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* 悬浮工具栏 */
    .float-toolbar {
      position: fixed;
      right: 24px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      transition: var(--transition);
      position: relative;
    }

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

    .float-btn svg {
      width: 22px;
      height: 22px;
      fill: currentColor;
    }

    .float-qrcode-hover {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      padding: 12px;
      border-radius: 8px;
      box-shadow: 0 8px 24px rgba(0,0,0,0.15);
      display: none;
      width: 140px;
      text-align: center;
    }

    .float-qrcode-hover img {
      width: 100%;
      height: auto;
      margin-bottom: 6px;
    }

    .float-qrcode-hover span {
      font-size: 0.75rem;
      color: var(--text-muted);
      display: block;
    }

    .float-btn:hover .float-qrcode-hover {
      display: block;
    }

    /* 响应式调整 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.8rem;
      }
      .stats-container {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
    }

    @media (max-width: 768px) {
      section {
        padding: 50px 0;
      }
      .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--card-bg);
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        gap: 16px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-toggle {
        display: block;
      }
      .grid-2, .contact-wrapper, .map-container, .case-grid {
        grid-template-columns: 1fr;
      }
      .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .training-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .comments-grid {
        grid-template-columns: 1fr;
      }
      .news-grid {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 2.2rem;
      }
    }