:root {
      --primary: #2563eb;
      --primary-light: #3b82f6;
      --primary-deep: #1d4ed8;
      --accent: #06b6d4;
      --accent-warm: #f59e0b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
      --shadow-hover: 0 20px 25px -5px rgba(37,99,235,0.12), 0 8px 10px -6px rgba(37,99,235,0.08);
      --radius: 12px;
      --container-max: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }
    ul, ol {
      list-style: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    .section-padding {
      padding: 72px 0;
    }
    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-tag {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(37, 99, 235, 0.1);
      color: var(--primary);
      border-radius: 999px;
      font-size: 0.875rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(37,99,235,0.25);
    }
    .btn-primary:hover {
      box-shadow: 0 8px 20px rgba(37,99,235,0.35);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--primary);
      border-color: var(--border-color);
    }
    .btn-secondary:hover {
      background: #f1f5f9;
      border-color: var(--primary-light);
    }
    .btn-accent {
      background: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
      color: #ffffff;
    }

    /* 顶部导航 */
    .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);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-container {
      height: 40px;
      display: flex;
      align-items: center;
    }
    .logo-container img {
      height: 38px;
      width: auto;
    }
    .brand-text {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary-deep);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links li a {
      display: block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 6px;
      transition: all 0.2s ease;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(37, 99, 235, 0.06);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    /* 首屏 Hero（无图片） */
    .hero-section {
      position: relative;
      background: radial-gradient(120% 80% at 50% 0%, #eff6ff 0%, #f8fafc 100%);
      padding: 80px 0 60px 0;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 999px;
      color: var(--primary-deep);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
    }
    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
    }
    .hero-title {
      font-size: 2.75rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-title .highlight {
      background: linear-gradient(135deg, #1d4ed8 0%, #06b6d4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.125rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 580px;
    }
    .hero-cta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 36px;
    }
    .hero-cta .btn-hero-main {
      font-size: 1.05rem;
      padding: 14px 32px;
      background: linear-gradient(135deg, #2563eb 0%, #0284c7 100%);
      color: #ffffff;
      box-shadow: 0 10px 25px rgba(37,99,235,0.3);
      font-weight: 700;
    }
    .hero-cta .btn-hero-main:hover {
      box-shadow: 0 14px 30px rgba(37,99,235,0.4);
      transform: translateY(-2px);
    }
    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .hero-feature-item {
      display: flex;
      align-items: center;
      gap: 6px;
      background: #ffffff;
      padding: 6px 12px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
    }
    .hero-feature-item svg {
      width: 16px;
      height: 16px;
      fill: #10b981;
    }
    .hero-visual-board {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .v-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-md);
      transition: all 0.3s ease;
    }
    .v-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #93c5fd;
    }
    .v-card-icon {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: #eff6ff;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      color: var(--primary);
    }
    .v-card-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .v-card-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .v-card-tag {
      display: inline-block;
      margin-top: 12px;
      font-size: 0.75rem;
      color: var(--primary);
      font-weight: 600;
      background: #f0fdf4;
      padding: 2px 8px;
      border-radius: 4px;
      border: 1px solid #bbf7d0;
    }

    /* 数据指标条 */
    .metrics-bar {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 32px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-item {
      padding: 12px 16px;
      border-right: 1px solid #f1f5f9;
    }
    .metric-item:last-child {
      border-right: none;
    }
    .metric-num {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--primary-deep);
      line-height: 1.2;
    }
    .metric-label {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 6px;
      font-weight: 500;
    }

    /* 平台核心模型矩阵 */
    .models-chip-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }
    .model-chip {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.875rem;
      font-weight: 600;
      color: #334155;
      box-shadow: var(--shadow-sm);
      transition: all 0.2s ease;
    }
    .model-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    /* AIGC 服务矩阵卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.3s ease;
    }
    .service-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: #bfdbfe;
      transform: translateY(-4px);
    }
    .service-badge {
      font-size: 0.75rem;
      font-weight: 700;
      color: #0284c7;
      background: #e0f2fe;
      padding: 4px 10px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
      width: fit-content;
    }
    .service-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .service-card p {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .service-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: 600;
    }

    /* 行业方案展示（含指定图片） */
    .solution-banner-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      margin-bottom: 32px;
    }
    .banner-box {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .banner-box-img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      display: block;
    }
    .banner-box-body {
      padding: 24px;
    }
    .banner-box-body h4 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .banner-box-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 对比评测模块 */
    .compare-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .score-card {
      background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
      color: #ffffff;
      border-radius: var(--radius);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 36px;
      box-shadow: var(--shadow-lg);
    }
    .score-left h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .score-left p {
      color: #bfdbfe;
      font-size: 0.95rem;
    }
    .score-badge-wrap {
      display: flex;
      align-items: baseline;
      gap: 6px;
      background: rgba(255,255,255,0.15);
      padding: 12px 24px;
      border-radius: 12px;
      backdrop-filter: blur(5px);
    }
    .score-value {
      font-size: 3rem;
      font-weight: 900;
      color: #fbbf24;
      line-height: 1;
    }
    .score-max {
      font-size: 1.25rem;
      color: #ffffff;
      font-weight: 600;
    }
    .score-stars {
      color: #fbbf24;
      font-size: 1.1rem;
      letter-spacing: 2px;
    }
    .compare-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.95rem;
    }
    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table thead th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table tbody tr:hover {
      background: #f8fafc;
    }
    .compare-table .highlight-col {
      background: rgba(37,99,235,0.03);
      font-weight: 600;
      color: var(--primary-deep);
    }
    .status-badge {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    .badge-win {
      background: #dcfce7;
      color: #15803d;
    }
    .badge-normal {
      background: #f1f5f9;
      color: #64748b;
    }

    /* 标准制作流程 */
    .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);
      padding: 24px;
      position: relative;
    }
    .flow-step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 16px;
    }
    .flow-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .flow-card p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 案例展示区 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-img-box {
      width: 100%;
      height: 190px;
      background: #e2e8f0;
      overflow: hidden;
    }
    .case-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-box img {
      transform: scale(1.05);
    }
    .case-body {
      padding: 20px;
    }
    .case-tag {
      font-size: 0.75rem;
      color: var(--primary);
      background: #eff6ff;
      padding: 3px 8px;
      border-radius: 4px;
      font-weight: 600;
    }
    .case-body h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin: 10px 0 8px 0;
      color: var(--text-main);
    }
    .case-body p {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 用户评论 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .review-header {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .review-avatar-text {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #dbeafe;
      color: var(--primary-deep);
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
    }
    .review-user-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }
    .review-user-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .review-stars {
      color: #f59e0b;
      font-size: 0.85rem;
      margin-bottom: 10px;
    }
    .review-text {
      font-size: 0.875rem;
      color: #334155;
      line-height: 1.6;
    }

    /* FAQ 折叠面板 */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.active {
      border-color: #93c5fd;
    }
    .faq-header {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 600;
      font-size: 1.05rem;
      color: var(--text-main);
      background: #ffffff;
    }
    .faq-header:hover {
      background: #f8fafc;
    }
    .faq-icon {
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform 0.2s ease;
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-body {
      padding: 0 24px 20px 24px;
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.6;
      display: none;
    }
    .faq-item.active .faq-body {
      display: block;
    }

    /* 需求匹配与联系我们表单 */
    .contact-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }
    .contact-info-col h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .contact-info-col p {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-bottom: 24px;
      line-height: 1.6;
    }
    .info-list-group {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 28px;
    }
    .info-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.9rem;
    }
    .info-item-label {
      font-weight: 700;
      color: var(--text-main);
      min-width: 90px;
    }
    .info-item-val {
      color: var(--text-muted);
    }
    .contact-qr-box {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 16px;
      background: #f8fafc;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }
    .contact-qr-img {
      width: 90px;
      height: 90px;
      border-radius: 6px;
      object-fit: cover;
    }
    .form-col form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      background: #ffffff;
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease;
    }
    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 文章与百科模块 */
    .article-section {
      background: #f1f5f9;
    }
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .article-card {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .article-card h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .article-card ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .article-card li a {
      font-size: 0.9rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .article-card li a:hover {
      color: var(--primary);
    }

    /* 加盟代理模块 */
    .agent-card {
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius);
      padding: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
    }
    .agent-text h3 {
      font-size: 1.75rem;
      font-weight: 800;
      color: #1e3a8a;
      margin-bottom: 12px;
    }
    .agent-text p {
      font-size: 1rem;
      color: #3b82f6;
      max-width: 600px;
      line-height: 1.6;
    }

    /* 页脚设计 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 56px 0 24px 0;
      color: var(--text-muted);
      font-size: 0.875rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }
    .footer-brand h4 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .footer-brand p {
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .friend-links-wrap {
      border-top: 1px solid #f1f5f9;
      padding-top: 24px;
      margin-bottom: 24px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      font-size: 0.85rem;
    }
    .friend-links-wrap span {
      font-weight: 700;
      color: var(--text-main);
    }
    .friend-links-wrap a {
      color: var(--text-muted);
    }
    .friend-links-wrap a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid #f1f5f9;
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #94a3b8;
      font-size: 0.8rem;
    }

    /* 浮动客服栏 */
    .floating-bar {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--primary);
      transition: all 0.25s ease;
      position: relative;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }
    .float-btn .float-tooltip {
      position: absolute;
      right: 56px;
      top: 50%;
      transform: translateY(-50%);
      background: #0f172a;
      color: #ffffff;
      padding: 6px 12px;
      border-radius: 6px;
      font-size: 0.75rem;
      white-space: nowrap;
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.2s ease;
    }
    .float-btn:hover .float-tooltip {
      opacity: 1;
    }

    /* 响应式样式适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .services-grid, .cases-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 768px) {
      .header-inner {
        position: relative;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-lg);
      }
      .nav-links.show {
        display: flex;
      }
      .menu-toggle {
        display: block;
      }
      .hero-title {
        font-size: 2rem;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-item {
        border-right: none;
        border-bottom: 1px solid #f1f5f9;
      }
      .services-grid, .cases-grid, .reviews-grid {
        grid-template-columns: 1fr;
      }
      .solution-banner-grid, .contact-wrap, .articles-grid {
        grid-template-columns: 1fr;
      }
      .flow-grid {
        grid-template-columns: 1fr;
      }
      .agent-card {
        flex-direction: column;
        text-align: center;
      }
      .score-card {
        flex-direction: column;
        gap: 20px;
        text-align: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }