:root {
      --primary-color: #4f46e5;
      --secondary-color: #ec4899;
      --accent-color: #06b6d4;
      --warning-color: #f59e0b;
      --success-color: #10b981;
      --bg-light: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --gradient-rainbow: linear-gradient(135deg, #4f46e5 0%, #7c3aed 25%, #ec4899 50%, #f59e0b 75%, #06b6d4 100%);
      --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.95), rgba(248,250,252,0.95));
      --radius: 12px;
      --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
      --shadow-hover: 0 20px 35px -10px rgba(79, 70, 229, 0.15), 0 1px 3px rgba(0,0,0,0.05);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-light);
      background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(236, 72, 153, 0.08) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(6, 182, 212, 0.06) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

    /* 容器规范：全站统一步调 */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 斑斓彩条装饰线 */
    .rainbow-bar {
      height: 4px;
      width: 100%;
      background: var(--gradient-rainbow);
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }

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

    .brand-box {
      display: flex;
      align-items: center;
      gap: 12px;
      max-width: 220px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

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

    .nav-links li a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      padding: 8px 12px;
      border-radius: 6px;
      display: inline-block;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary-color);
      background: rgba(79, 70, 229, 0.06);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #4f46e5, #7c3aed);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    }

    .btn-accent {
      background: linear-gradient(135deg, #ec4899, #f59e0b);
      color: #ffffff !important;
      box-shadow: 0 4px 14px rgba(236, 72, 153, 0.35);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(236, 72, 153, 0.45);
    }

    .btn-outline {
      background: #ffffff;
      border-color: #cbd5e1;
      color: var(--text-main);
    }

    .btn-outline:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: #f8fafc;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      cursor: pointer;
      color: var(--text-main);
      padding: 4px;
    }

    /* 区域通用样式 */
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.1));
      color: var(--primary-color);
      margin-bottom: 12px;
      border: 1px solid rgba(79, 70, 229, 0.15);
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO（纯CSS/几何/无图片） */
    .hero-section {
      padding: 80px 0 60px;
      position: relative;
      overflow: hidden;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      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;
      border-radius: 20px;
      background: #ffffff;
      box-shadow: 0 2px 10px rgba(0,0,0,0.06);
      border: 1px solid #e2e8f0;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary-color);
      margin-bottom: 24px;
    }

    .hero-badge .dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    }

    .hero-title {
      font-size: 40px;
      line-height: 1.25;
      font-weight: 900;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #4f46e5, #ec4899, #f59e0b);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.7;
    }

    .hero-btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 36px;
    }

    .hero-btn-group .btn {
      padding: 14px 30px;
      font-size: 16px;
    }

    .hero-trust {
      display: flex;
      align-items: center;
      gap: 20px;
      font-size: 13px;
      color: #64748b;
    }

    .trust-item {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 首屏纯CSS科技感卡片 */
    .hero-visual-card {
      background: #ffffff;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      box-shadow: 0 20px 40px -15px rgba(79, 70, 229, 0.12);
      padding: 24px;
      position: relative;
    }

    .terminal-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 14px;
      border-bottom: 1px solid #f1f5f9;
      margin-bottom: 18px;
    }

    .terminal-dots {
      display: flex;
      gap: 6px;
    }

    .t-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .t-red { background: #ef4444; }
    .t-yellow { background: #f59e0b; }
    .t-green { background: #10b981; }

    .terminal-title {
      font-size: 12px;
      font-weight: 700;
      color: #94a3b8;
      letter-spacing: 0.5px;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .matrix-item {
      padding: 14px;
      border-radius: 12px;
      background: #f8fafc;
      border: 1px solid #f1f5f9;
      transition: all 0.25s ease;
    }

    .matrix-item:hover {
      background: #ffffff;
      border-color: #cbd5e1;
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }

    .matrix-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 14px;
      margin-bottom: 8px;
      color: #fff;
    }

    .mi-1 { background: linear-gradient(135deg, #4f46e5, #6366f1); }
    .mi-2 { background: linear-gradient(135deg, #ec4899, #f43f5e); }
    .mi-3 { background: linear-gradient(135deg, #f59e0b, #d97706); }
    .mi-4 { background: linear-gradient(135deg, #06b6d4, #0ea5e9); }

    .matrix-item h4 {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .matrix-item p {
      font-size: 11px;
      color: #64748b;
      line-height: 1.4;
    }

    /* 数据指标条 */
    .metrics-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
      padding: 24px;
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow);
    }

    .metric-col {
      text-align: center;
      padding: 10px;
      border-right: 1px solid #f1f5f9;
    }

    .metric-col:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1;
      margin-bottom: 6px;
      font-feature-settings: "tnum";
    }

    .metric-num.colorful-1 { color: #4f46e5; }
    .metric-num.colorful-2 { color: #ec4899; }
    .metric-num.colorful-3 { color: #f59e0b; }
    .metric-num.colorful-4 { color: #10b981; }

    .metric-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 多模型生态展示条 */
    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-pill {
      display: inline-block;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      color: #334155;
      box-shadow: 0 1px 3px rgba(0,0,0,0.02);
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: translateY(-2px);
    }

    /* 通用卡片网格 */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

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

    .cards-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--gradient-rainbow);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #cbd5e1;
    }

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

    .card-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      background: #e0e7ff;
      color: #4338ca;
      margin-bottom: 12px;
      align-self: flex-start;
    }

    .card-badge.pink { background: #fce7f3; color: #be185d; }
    .card-badge.amber { background: #fef3c7; color: #b45309; }
    .card-badge.cyan { background: #cffafe; color: #0e7490; }
    .card-badge.green { background: #d1fae5; color: #047857; }

    .card-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .card-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .card-footer-info {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary-color);
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* 素材图片组件响应式包装 */
    .img-box {
      width: 100%;
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #e2e8f0;
      margin-bottom: 16px;
    }

    .img-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }

    .img-banner-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 30px;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px 20px;
      text-align: center;
      box-shadow: var(--shadow);
      position: relative;
    }

    .step-number {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #7c3aed);
      color: #ffffff;
      font-size: 18px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
    }

    .step-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 对比评测板块 */
    .compare-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      box-shadow: var(--shadow);
      overflow: hidden;
      margin-top: 24px;
    }

    .compare-header-card {
      padding: 28px;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .compare-rating-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-badge {
      background: rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
      padding: 10px 20px;
      border-radius: 12px;
      text-align: center;
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .score-num {
      font-size: 32px;
      font-weight: 900;
      line-height: 1;
    }

    .score-max {
      font-size: 13px;
      opacity: 0.9;
    }

    .stars-box {
      font-size: 20px;
      color: #facc15;
      letter-spacing: 2px;
    }

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

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
    }

    .compare-table th {
      background: #f8fafc;
      color: #334155;
      font-weight: 700;
    }

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

    .compare-table tr:hover td {
      background: #f8fafc;
    }

    .tag-highlight {
      display: inline-block;
      padding: 4px 10px;
      border-radius: 6px;
      font-weight: 700;
      font-size: 13px;
      background: #dcfce7;
      color: #15803d;
    }

    .tag-normal {
      color: #64748b;
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 2px 4px rgba(0,0,0,0.02);
      transition: all 0.2s ease;
    }

    .faq-item:hover {
      border-color: #cbd5e1;
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-toggle-icon {
      font-size: 18px;
      color: var(--primary-color);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
      background: #f8fafc;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
      padding: 0 24px;
    }

    .faq-item.active .faq-answer {
      max-height: 400px;
      padding: 16px 24px 20px;
      border-top: 1px solid #f1f5f9;
    }

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

    /* 用户评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 24px;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }

    .review-user-box {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .review-avatar-txt {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .review-user-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-user-role {
      font-size: 12px;
      color: #64748b;
    }

    /* 表单与需求匹配 */
    .form-section-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 40px;
      box-shadow: var(--shadow);
    }

    .form-info-side {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .form-info-side h3 {
      font-size: 26px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .form-contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 16px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .form-contact-icon {
      width: 36px;
      height: 36px;
      border-radius: 8px;
      background: #e0e7ff;
      color: #4338ca;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      font-weight: 700;
    }

    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 14px;
      background: #ffffff;
      color: var(--text-main);
      transition: border-color 0.2s;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary-color);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 90px;
    }

    /* 资讯与友情链接 */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
      gap: 12px;
      margin-top: 20px;
    }

    .article-link-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 12px 16px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      transition: all 0.2s ease;
    }

    .article-link-card:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: #f8fafc;
    }

    .friendly-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }

    .friendly-links-wrap a {
      display: inline-block;
      padding: 6px 14px;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: 6px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .friendly-links-wrap a:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding-top: 50px;
      padding-bottom: 30px;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 12px;
    }

    .footer-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-nav-list a {
      font-size: 13px;
      color: #94a3b8;
    }

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

    .qr-container {
      width: 110px;
      height: 110px;
      background: #ffffff;
      padding: 6px;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
    }

    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      border-top: 1px solid #1e293b;
      font-size: 12px;
      color: #64748b;
    }

    /* 浮动客服 */
    .float-service-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid #e2e8f0;
      box-shadow: 0 4px 15px rgba(0,0,0,0.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-size: 18px;
      font-weight: 700;
      cursor: pointer;
      transition: all 0.25s ease;
    }

    .float-btn:hover {
      background: var(--primary-color);
      color: #ffffff;
      transform: scale(1.05);
    }

    .float-btn.primary {
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      color: #ffffff;
      border: none;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-layout,
      .form-section-layout {
        grid-template-columns: 1fr;
      }
      .cards-grid-4,
      .steps-wrapper,
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow);
      }
      .nav-links.show {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .cards-grid-3,
      .cards-grid-2,
      .reviews-grid,
      .img-banner-box {
        grid-template-columns: 1fr;
      }
      .hero-title {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .compare-header-card {
        flex-direction: column;
        align-items: flex-start;
      }
    }