:root {
      --primary: #0052ff;
      --primary-neon: #00f0ff;
      --secondary-neon: #7928ca;
      --accent-neon: #ff007a;
      --accent-glow: #00dfd8;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: rgba(226, 232, 240, 0.8);
      --card-shadow: 0 10px 30px -5px rgba(0, 82, 255, 0.06), 0 0 0 1px rgba(0, 240, 255, 0.12);
      --neon-shadow: 0 0 20px rgba(0, 240, 255, 0.35);
      --container-max: 1200px;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
    }

    * {
      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-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background: radial-gradient(circle at 10% 10%, rgba(0, 240, 255, 0.04) 0%, transparent 40%),
                  radial-gradient(circle at 90% 20%, rgba(121, 40, 202, 0.04) 0%, transparent 40%),
                  radial-gradient(circle at 50% 80%, rgba(255, 0, 122, 0.03) 0%, transparent 50%),
                  #f8fafc;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

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

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(0, 240, 255, 0.2);
    }

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

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

    .brand-wrap .ai-page-logo {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.5px;
      position: relative;
    }

    .brand-text span {
      background: linear-gradient(135deg, #0052ff, #7928ca);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.93rem;
      font-weight: 600;
      color: var(--text-muted);
      text-decoration: none;
      transition: all 0.2s ease;
      position: relative;
    }

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

    .nav-actions {
      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: 700;
      border-radius: var(--radius-sm);
      text-decoration: none;
      transition: all 0.25s ease;
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-neon {
      background: linear-gradient(135deg, #0052ff 0%, #7928ca 100%);
      color: #ffffff !important;
      box-shadow: 0 4px 15px rgba(0, 82, 255, 0.35);
    }

    .btn-neon:hover {
      box-shadow: 0 6px 22px rgba(121, 40, 202, 0.5);
      transform: translateY(-1px);
    }

    .btn-outline {
      background: #ffffff;
      color: var(--text-main);
      border-color: rgba(0, 82, 255, 0.3);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      box-shadow: 0 0 12px rgba(0, 240, 255, 0.2);
    }

    .btn-portal {
      background: linear-gradient(135deg, #00f0ff 0%, #0052ff 100%);
      color: #0b1329 !important;
      font-weight: 800;
      box-shadow: 0 4px 15px rgba(0, 240, 255, 0.4);
    }

    .btn-portal:hover {
      box-shadow: 0 6px 20px rgba(0, 240, 255, 0.6);
      transform: translateY(-2px);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      padding: 6px;
    }

    /* 模块通用样式 */
    section {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px;
    }

    .badge-neon {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      text-transform: uppercase;
      background: rgba(0, 240, 255, 0.1);
      color: #0052ff;
      border: 1px solid rgba(0, 240, 255, 0.4);
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 Hero (无图片，纯科技矢量与文字) */
    .hero-section {
      padding: 60px 0 70px;
      position: relative;
      overflow: hidden;
    }

    .hero-glow-bg {
      position: absolute;
      top: -100px;
      left: 50%;
      transform: translateX(-50%);
      width: 800px;
      height: 400px;
      background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(121, 40, 202, 0.1) 40%, transparent 70%);
      filter: blur(60px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid rgba(0, 240, 255, 0.5);
      box-shadow: 0 4px 15px rgba(0, 240, 255, 0.15);
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 700;
      color: #0052ff;
      margin-bottom: 24px;
    }

    .hero-badge-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #00f0ff;
      box-shadow: 0 0 8px #00f0ff;
    }

    .hero-h1 {
      font-size: 2.6rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-h1 .gradient-text {
      background: linear-gradient(135deg, #0052ff 0%, #7928ca 50%, #ff007a 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-sub {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 800px;
      margin: 0 auto 32px;
    }

    .hero-btns {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 45px;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 10px;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.9);
      border: 1px solid rgba(226, 232, 240, 0.9);
      border-radius: var(--radius-md);
      padding: 22px 16px;
      text-align: center;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
      position: relative;
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, #00f0ff, #7928ca);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .stat-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--card-shadow);
    }

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

    .stat-num {
      font-size: 1.7rem;
      font-weight: 900;
      color: #0052ff;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.88rem;
      color: var(--text-light);
      font-weight: 600;
    }

    /* 平台介绍 / 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .about-info-box {
      background: #ffffff;
      border: 1px solid rgba(0, 240, 255, 0.25);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--card-shadow);
    }

    .model-tags-box {
      background: #ffffff;
      border: 1px solid rgba(121, 40, 202, 0.2);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--card-shadow);
    }

    .tags-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .tag-item {
      padding: 6px 14px;
      background: #f1f5f9;
      color: #334155;
      font-size: 0.84rem;
      font-weight: 600;
      border-radius: 6px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s;
    }

    .tag-item:hover {
      background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(121, 40, 202, 0.15));
      border-color: #0052ff;
      color: #0052ff;
      transform: translateY(-1px);
    }

    /* 核心服务网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: #ffffff;
      border: 1px solid rgba(226, 232, 240, 0.8);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: 0 4px 18px rgba(0, 0, 0, 0.02);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .service-card:hover {
      border-color: rgba(0, 240, 255, 0.5);
      box-shadow: var(--card-shadow);
      transform: translateY(-4px);
    }

    .service-icon {
      width: 46px;
      height: 46px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(0, 82, 255, 0.1));
      color: #0052ff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 16px;
    }

    .service-title {
      font-size: 1.18rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

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

    .flow-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    }

    .flow-num {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #00f0ff, #0052ff);
      color: #ffffff;
      border-radius: 50%;
      font-weight: 800;
      font-size: 0.9rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 14px;
      box-shadow: 0 0 10px rgba(0, 240, 255, 0.4);
    }

    .flow-card h3 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .flow-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例展示区 (含真实素材图) */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.03);
      transition: all 0.3s;
    }

    .case-card:hover {
      box-shadow: var(--card-shadow);
      transform: translateY(-3px);
    }

    .case-media-box {
      width: 100%;
      background: #f1f5f9;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .case-media-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s;
    }

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

    .case-body {
      padding: 20px;
    }

    .case-cat {
      font-size: 0.78rem;
      font-weight: 700;
      color: #0052ff;
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-name {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 对比评测板块 */
    .compare-wrap {
      background: #ffffff;
      border: 1px solid rgba(0, 240, 255, 0.3);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: var(--card-shadow);
    }

    .score-summary-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(121, 40, 202, 0.08));
      border: 1px solid rgba(0, 240, 255, 0.2);
      border-radius: var(--radius-md);
      padding: 24px 30px;
      margin-bottom: 28px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-left {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-val {
      font-size: 2.6rem;
      font-weight: 900;
      color: #0052ff;
      line-height: 1;
    }

    .score-meta h4 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 4px;
    }

    .score-stars {
      color: #ff9900;
      font-size: 1.1rem;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

    .compare-table th,
    .compare-table td {
      padding: 14px 18px;
      border-bottom: 1px solid #edf2f7;
      font-size: 0.92rem;
    }

    .compare-table th {
      background: #f8fafc;
      color: var(--text-main);
      font-weight: 700;
    }

    .compare-table tr:hover td {
      background: rgba(0, 240, 255, 0.03);
    }

    .highlight-cell {
      background: rgba(0, 82, 255, 0.04);
      font-weight: 700;
      color: #0052ff;
    }

    /* Token 比价与代理加盟 */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 30px 24px;
      position: relative;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .price-card.featured {
      border: 2px solid #0052ff;
      box-shadow: 0 8px 30px rgba(0, 82, 255, 0.15);
    }

    .price-head {
      margin-bottom: 20px;
    }

    .price-tier {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .price-amount {
      font-size: 2rem;
      font-weight: 900;
      color: #0052ff;
      margin-bottom: 8px;
    }

    .price-amount span {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .price-features {
      list-style: none;
      margin-bottom: 26px;
    }

    .price-features li {
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 用户评论 (6条) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: 0 4px 16px rgba(0, 0, 0, 0.02);
      transition: all 0.3s;
    }

    .review-card:hover {
      box-shadow: var(--card-shadow);
      border-color: rgba(0, 240, 255, 0.4);
      transform: translateY(-2px);
    }

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

    .user-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #00f0ff, #7928ca);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-name {
      font-weight: 700;
      font-size: 0.96rem;
      color: var(--text-main);
    }

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

    .review-comment {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: all 0.25s;
    }

    .faq-item.open {
      border-color: rgba(0, 82, 255, 0.4);
      box-shadow: 0 4px 18px rgba(0, 82, 255, 0.08);
    }

    .faq-question {
      padding: 18px 22px;
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: #0052ff;
      transition: transform 0.3s;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      background: #fafcff;
    }

    .faq-answer p {
      padding: 0 22px 18px;
      font-size: 0.93rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 需求匹配与联系我们表单 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }

    .form-box {
      background: #ffffff;
      border: 1px solid rgba(0, 240, 255, 0.3);
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: var(--card-shadow);
    }

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

    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 11px 14px;
      font-size: 0.92rem;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      outline: none;
      transition: all 0.2s;
      background: #f8fafc;
      color: var(--text-main);
    }

    .form-control:focus {
      border-color: #0052ff;
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(0, 82, 255, 0.15);
    }

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

    .contact-info-panel {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-lg);
      padding: 34px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-details {
      list-style: none;
      margin-bottom: 24px;
    }

    .contact-details li {
      font-size: 0.94rem;
      color: var(--text-muted);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qr-box {
      text-align: center;
      padding: 16px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px dashed #cbd5e1;
    }

    .qr-box img {
      width: 140px;
      height: 140px;
      margin-bottom: 8px;
      display: inline-block;
      object-fit: contain;
    }

    .qr-box p {
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 600;
    }

    /* 行业资讯与文章 */
    .article-section-content {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 24px;
      margin-bottom: 24px;
    }

    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
      margin-top: 14px;
    }

    .article-links-list a {
      color: #0052ff;
      text-decoration: none;
      font-size: 0.9rem;
      background: #f1f5f9;
      padding: 6px 14px;
      border-radius: 6px;
      transition: all 0.2s;
    }

    .article-links-list a:hover {
      background: #0052ff;
      color: #ffffff;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 24px;
      margin-top: auto;
      border-top: 1px solid rgba(0, 240, 255, 0.2);
    }

    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.7;
    }

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

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

    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.2s;
    }

    .footer-links-list a:hover {
      color: #00f0ff;
    }

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      margin-bottom: 24px;
    }

    .friend-links-box h5 {
      color: #e2e8f0;
      font-size: 0.92rem;
      margin-bottom: 10px;
    }

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

    .friend-links-wrap a {
      color: #64748b;
      font-size: 0.84rem;
      text-decoration: none;
      transition: color 0.2s;
    }

    .friend-links-wrap a:hover {
      color: #00f0ff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 0.82rem;
      color: #64748b;
    }

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

    .float-btn {
      width: 46px;
      height: 46px;
      background: #ffffff;
      border: 1px solid rgba(0, 240, 255, 0.4);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0052ff;
      font-weight: 700;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      cursor: pointer;
      text-decoration: none;
      transition: all 0.2s;
    }

    .float-btn:hover {
      background: #0052ff;
      color: #ffffff;
      box-shadow: var(--neon-shadow);
      transform: translateY(-2px);
    }

    /* 响应式调整 */
    @media (max-width: 992px) {
      .hero-stats-grid,
      .services-grid,
      .flow-grid,
      .cases-grid,
      .pricing-grid,
      .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid,
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .nav-links {
        display: none;
      }
      .mobile-menu-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 2.1rem;
      }
    }

    @media (max-width: 640px) {
      .hero-stats-grid,
      .services-grid,
      .flow-grid,
      .cases-grid,
      .pricing-grid,
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .footer-top-grid {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 1.8rem;
      }
      .section-title {
        font-size: 1.6rem;
      }
      .score-summary-box {
        flex-direction: column;
        align-items: flex-start;
      }
    }