:root {
      --primary: #e6005c;
      --primary-hover: #c4004e;
      --primary-light: #fff0f5;
      --primary-gradient: linear-gradient(135deg, #ff1493 0%, #e6005c 50%, #ff416c 100%);
      --accent: #ff6584;
      --bg-base: #fcf9fa;
      --bg-card: #ffffff;
      --text-main: #2b2b2e;
      --text-muted: #666670;
      --border-color: #f3d7e2;
      --shadow-sm: 0 4px 12px rgba(230, 0, 92, 0.06);
      --shadow-md: 0 8px 24px rgba(230, 0, 92, 0.1);
      --shadow-lg: 0 16px 36px rgba(230, 0, 92, 0.14);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --container-max: 1200px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航 */
    header.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-color);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

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

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

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      text-decoration: none;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(230, 0, 92, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(230, 0, 92, 0.45);
    }

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

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

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

    /* 区域通用结构 */
    section {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 50px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      border-radius: 50px;
      margin-bottom: 12px;
      border: 1px solid var(--border-color);
      text-transform: uppercase;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 15px;
      line-height: 1.3;
    }

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

    /* Hero 首屏 (无图片) */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, rgba(255, 101, 132, 0.15) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(230, 0, 92, 0.08) 0%, transparent 50%),
                  #ffffff;
      padding: 90px 0 70px 0;
      border-bottom: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .hero-h1 {
      font-size: 2.6rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      background: var(--primary-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 36px auto;
      line-height: 1.6;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 18px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .btn-hero-large {
      padding: 14px 36px;
      font-size: 1.1rem;
      border-radius: var(--radius-md);
    }

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

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

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

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

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

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

    .about-content h3 {
      font-size: 1.7rem;
      margin-bottom: 18px;
      color: var(--text-main);
      font-weight: 800;
    }

    .about-content p {
      color: var(--text-muted);
      font-size: 1rem;
      margin-bottom: 16px;
      line-height: 1.7;
    }

    .about-feature-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .about-feature-list li {
      font-size: 0.95rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .about-feature-list li::before {
      content: "✓";
      color: var(--primary);
      font-weight: bold;
    }

    .about-media-box {
      background: var(--primary-light);
      border-radius: var(--radius-lg);
      padding: 15px;
      border: 1px solid var(--border-color);
    }

    .about-media-box img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-md);
      display: block;
      object-fit: cover;
    }

    /* 核心服务 & 一站式制作 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .service-icon {
      width: 50px;
      height: 50px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      margin-bottom: 18px;
    }

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

    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 行业方案与场景 */
    .scenario-section {
      background: #ffffff;
    }

    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
      gap: 24px;
    }

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

    .scenario-card:hover {
      background: #ffffff;
      box-shadow: var(--shadow-md);
      border-color: var(--accent);
    }

    .scenario-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--primary);
      background: var(--primary-light);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }

    .scenario-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .scenario-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 支持模型矩阵 */
    .models-section {
      background: linear-gradient(180deg, var(--bg-base) 0%, #fff0f5 100%);
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .model-badge {
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--text-main);
      padding: 8px 18px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 50px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

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

    .flow-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      position: relative;
    }

    .flow-step-num {
      width: 40px;
      height: 40px;
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 16px auto;
    }

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

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

    /* 案例展示 */
    .cases-section {
      background: #ffffff;
    }

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

    .case-card {
      background: var(--bg-base);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .case-img-container {
      width: 100%;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #f0f0f0;
    }

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

    .case-card:hover .case-img-container img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 24px;
    }

    .case-tag {
      color: var(--primary);
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .case-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 对比评测 */
    .compare-section {
      background: #ffffff;
    }

    .score-banner {
      background: var(--primary-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 40px;
      text-align: center;
    }

    .score-item-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .score-item-val {
      font-size: 2.4rem;
      font-weight: 900;
      color: var(--primary);
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
      background: #ffffff;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f0f0f4;
      font-size: 0.95rem;
    }

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

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

    .compare-table .highlight {
      color: var(--primary);
      font-weight: 700;
      background: rgba(255, 240, 245, 0.5);
    }

    /* Token 比价与方案 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
      position: relative;
    }

    .token-card.popular {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .token-badge-top {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .token-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .token-plan-name {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 15px;
    }

    .token-price span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .token-features {
      list-style: none;
      margin: 20px 0;
      flex-grow: 1;
    }

    .token-features li {
      margin-bottom: 10px;
      font-size: 0.92rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .token-features li::before {
      content: "•";
      color: var(--primary);
      font-size: 1.2rem;
    }

    /* 用户评论 */
    .reviews-section {
      background: #ffffff;
    }

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

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

    .review-stars {
      color: #ff9900;
      font-size: 1rem;
      margin-bottom: 12px;
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-main);
      line-height: 1.6;
      margin-bottom: 18px;
      flex-grow: 1;
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }

    .reviewer-name {
      font-weight: 700;
      font-size: 0.95rem;
    }

    .reviewer-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

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

    .faq-question {
      padding: 20px;
      font-size: 1.05rem;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: var(--bg-base);
    }

    .faq-item.active .faq-answer {
      padding: 20px;
      border-top: 1px solid var(--border-color);
    }

    .faq-answer p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 资讯与百科 */
    .news-section {
      background: #ffffff;
    }

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

    .article-links-card, .wiki-card {
      background: var(--bg-base);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
    }

    .block-subtitle {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .block-subtitle::before {
      content: "";
      width: 4px;
      height: 18px;
      background: var(--primary);
      border-radius: 2px;
    }

    .article-urls {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-bottom: 20px;
    }

    .article-urls li a {
      color: var(--text-main);
      text-decoration: none;
      font-size: 0.95rem;
      transition: var(--transition);
      display: block;
      padding: 8px 12px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px solid #f0f0f4;
    }

    .article-urls li a:hover {
      color: var(--primary);
      border-color: var(--primary);
      padding-left: 16px;
    }

    .article-shortcode-container {
      margin-top: 15px;
      padding: 12px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      border: 1px dashed var(--border-color);
    }

    /* 需求匹配 & 联系我们 表单区 */
    .contact-section {
      background: linear-gradient(135deg, #fff0f5 0%, #ffffff 100%);
    }

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

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

    .contact-info-card h3 {
      font-size: 1.5rem;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--text-main);
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 18px;
    }

    .contact-item-icon {
      width: 40px;
      height: 40px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      flex-shrink: 0;
    }

    .contact-item-detail h4 {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 2px;
    }

    .contact-item-detail p {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
    }

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

    .qr-container img {
      width: 100px;
      height: 100px;
      border-radius: var(--radius-sm);
      object-fit: contain;
      background: #ffffff;
    }

    .qr-text {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

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

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #ffffff;
      color: var(--text-main);
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(230, 0, 92, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 110px;
    }

    /* 加盟代理模块 */
    .partner-section {
      background: #ffffff;
      text-align: center;
    }

    .partner-card {
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px 30px;
      box-shadow: var(--shadow-md);
      max-width: 900px;
      margin: 0 auto;
    }

    .partner-card h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .partner-card p {
      font-size: 1.05rem;
      max-width: 650px;
      margin: 0 auto 30px auto;
      opacity: 0.95;
    }

    .btn-light-partner {
      background: #ffffff;
      color: var(--primary);
      padding: 12px 36px;
      font-size: 1rem;
      font-weight: 700;
      border-radius: var(--radius-sm);
      text-decoration: none;
      display: inline-block;
      transition: var(--transition);
    }

    .btn-light-partner:hover {
      background: var(--primary-light);
      transform: scale(1.03);
    }

    /* 友情链接与页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 50px 0 30px 0;
      color: var(--text-muted);
    }

    .footer-links-section {
      margin-bottom: 30px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .footer-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

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

    .friend-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition);
    }

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

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.88rem;
    }

    .footer-bottom a {
      color: var(--primary);
      text-decoration: none;
    }

    /* 浮动客服入口 */
    .float-service-btn {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      background: var(--primary-gradient);
      color: #ffffff;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      text-decoration: none;
      transition: var(--transition);
    }

    .float-service-btn:hover {
      transform: scale(1.1);
    }

    /* 响应式断点 */
    @media (max-width: 992px) {
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .contact-grid, .cases-grid, .news-grid {
        grid-template-columns: 1fr;
      }
      .token-grid, .reviews-grid, .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li a {
        width: 100%;
        padding: 12px;
      }
      .hero-h1 {
        font-size: 1.9rem;
      }
      .hero-stats-grid, .token-grid, .reviews-grid, .flow-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }