:root {
      --primary: #e11d48;
      --primary-hover: #be123c;
      --primary-light: #ffe4e6;
      --primary-soft: #fff1f2;
      --accent: #ec4899;
      --accent-deep: #9d174d;
      --text-main: #1e293b;
      --text-secondary: #475569;
      --text-muted: #64748b;
      --bg-base: #fffbfa;
      --bg-card: #ffffff;
      --border-color: #fecdd3;
      --border-light: #ffe4e6;
      --shadow-sm: 0 2px 8px rgba(225, 29, 72, 0.04);
      --shadow-md: 0 10px 25px -5px rgba(225, 29, 72, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 35px -5px rgba(225, 29, 72, 0.12), 0 10px 15px -5px rgba(0, 0, 0, 0.03);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-full: 9999px;
      --container-width: 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-base);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 10% 20%, rgba(254, 205, 211, 0.35) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(251, 207, 232, 0.35) 0%, transparent 45%);
      background-attachment: fixed;
    }

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

    ul, ol {
      list-style: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 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, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      box-shadow: 0 4px 20px rgba(225, 29, 72, 0.05);
    }

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

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

    .brand-box .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

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

    .header-cta-group {
      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: var(--radius-full);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: linear-gradient(135deg, #e11d48, #ec4899);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #be123c, #db2777);
      box-shadow: 0 6px 20px rgba(225, 29, 72, 0.45);
      transform: translateY(-2px);
      color: #ffffff;
    }

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

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

    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: space-around;
      width: 30px;
      height: 24px;
      background: transparent;
      border: none;
      cursor: pointer;
    }

    .nav-toggle span {
      width: 100%;
      height: 3px;
      background-color: var(--primary);
      border-radius: 2px;
      transition: all 0.3s;
    }

    /* 区域通用样式 */
    .section-padding {
      padding: 80px 0;
    }

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px auto;
    }

    .badge-sub {
      display: inline-block;
      padding: 6px 16px;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: var(--primary-light);
      border-radius: var(--radius-full);
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* Hero 首屏 - 严禁出现图片，采用艳丽纯CSS几何装饰 */
    .hero-section {
      padding: 90px 0 80px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #ffffff 0%, #fff1f2 100%);
      border-bottom: 1px solid var(--border-light);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 6px 18px;
      border-radius: var(--radius-full);
      border: 1px solid var(--border-color);
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 20px;
    }

    .hero-tag .dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(225, 29, 72, 0.2);
    }

    .hero-title {
      font-size: 44px;
      line-height: 1.25;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #e11d48 0%, #ec4899 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 17px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 34px;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 40px;
    }

    .hero-btn-group .btn {
      padding: 14px 34px;
      font-size: 16px;
    }

    .hero-features-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      padding-top: 25px;
      border-top: 1px solid rgba(225, 29, 72, 0.15);
    }

    .feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-secondary);
    }

    .feature-item .icon {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 900;
    }

    /* 首屏纯CSS可视化科技板 */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .card-top-status {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 18px;
      margin-bottom: 20px;
      border-bottom: 1px solid var(--border-light);
    }

    .status-badge {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 700;
      color: #059669;
      background: #ecfdf5;
      padding: 4px 12px;
      border-radius: var(--radius-full);
    }

    .engine-matrix {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 22px;
    }

    .matrix-item {
      background: var(--primary-soft);
      padding: 16px;
      border-radius: var(--radius-md);
      border-left: 4px solid var(--primary);
    }

    .matrix-title {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .matrix-desc {
      font-size: 12px;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .model-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      padding: 14px;
      background: #fafaf9;
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-color);
    }

    .chip {
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      background: #ffffff;
      color: var(--primary-hover);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
    }

    /* 平台核心指标展示条 */
    .metric-stripe {
      background: #ffffff;
      padding: 36px 0;
      border-bottom: 1px solid var(--border-light);
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }

    .metric-val {
      font-size: 36px;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 4px;
      font-family: Arial, sans-serif;
    }

    .metric-label {
      font-size: 14px;
      color: var(--text-secondary);
      font-weight: 600;
    }

    /* 平台介绍板块 */
    .about-section {
      background: #ffffff;
    }

    .about-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 50px;
      align-items: center;
    }

    .about-text p {
      font-size: 16px;
      color: var(--text-secondary);
      margin-bottom: 20px;
      line-height: 1.8;
    }

    .about-pillars {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 30px;
    }

    .pillar-card {
      background: var(--bg-base);
      border: 1px solid var(--border-light);
      padding: 18px;
      border-radius: var(--radius-md);
    }

    .pillar-card h4 {
      font-size: 16px;
      color: var(--primary);
      margin-bottom: 6px;
      font-weight: 700;
    }

    .pillar-card p {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 0;
      line-height: 1.5;
    }

    .about-media-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 3px solid #ffffff;
    }

    /* 服务能力卡片列表 */
    .service-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-md);
      padding: 30px;
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: var(--primary);
    }

    .service-head {
      margin-bottom: 18px;
    }

    .service-icon-sym {
      width: 46px;
      height: 46px;
      background: linear-gradient(135deg, var(--primary-light), var(--primary-soft));
      color: var(--primary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 16px;
    }

    .service-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .service-content {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .service-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 20px;
    }

    .service-tag {
      font-size: 11px;
      padding: 3px 8px;
      background: #fff1f2;
      color: var(--accent-deep);
      border-radius: 4px;
    }

    /* 一站式创作与行业方案多维度网格 */
    .solution-tabs {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }

    .sol-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .sol-card h3 {
      font-size: 18px;
      color: var(--primary-hover);
      margin-bottom: 12px;
      font-weight: 700;
    }

    .sol-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 对比评测卡片与表格 */
    .review-score-hero {
      background: linear-gradient(135deg, #ffffff, #fff1f2);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--shadow-md);
    }

    .score-left h3 {
      font-size: 26px;
      color: var(--text-main);
      margin-bottom: 10px;
      font-weight: 800;
    }

    .score-stars {
      color: #e11d48;
      font-size: 20px;
      letter-spacing: 2px;
      margin-bottom: 8px;
    }

    .score-right {
      text-align: right;
    }

    .big-score {
      font-size: 52px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }

    .score-scale {
      font-size: 16px;
      color: var(--text-muted);
    }

    .comparison-table-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 15px;
    }

    .comp-table th, 
    .comp-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-light);
    }

    .comp-table th {
      background-color: #fff1f2;
      color: var(--text-main);
      font-weight: 700;
    }

    .comp-table th.highlight-col,
    .comp-table td.highlight-col {
      background-color: #fff9fa;
      color: var(--primary-hover);
      font-weight: 700;
      border-left: 2px solid var(--primary-light);
      border-right: 2px solid var(--primary-light);
    }

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

    /* 标准流程时间线 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
    }

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

    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px auto;
      font-size: 16px;
    }

    .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;
    }

    /* 案例中心展示 */
    .case-gallery-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 28px;
    }

    .case-panel {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .case-panel .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
      border-bottom: 1px solid var(--border-light);
    }

    .case-info {
      padding: 24px;
    }

    .case-info h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .case-info p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 需求匹配与表单 */
    .form-section-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      padding: 44px;
      max-width: 860px;
      margin: 0 auto;
    }

    .custom-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      padding: 12px 16px;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--text-main);
      background-color: #fafaf9;
      outline: none;
      transition: all 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.15);
    }

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

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

    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .testi-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .testi-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
    }

    .testi-user h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
    }

    .testi-user span {
      font-size: 12px;
      color: var(--text-muted);
    }

    .testi-quote {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      font-style: italic;
    }

    /* FAQ 折叠组件 */
    .faq-container {
      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: var(--radius-md);
      overflow: hidden;
      transition: all 0.25s ease;
    }

    .faq-question {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-icon-cross {
      font-size: 18px;
      font-weight: bold;
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
      border-top: 1px solid var(--border-light);
      background: #fffbfa;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

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

    /* 资讯与百科板块 */
    .info-dual-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }

    .info-column {
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .info-column h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 2px solid var(--primary-light);
    }

    .article-links-box {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 15px;
    }

    .article-link-item {
      padding: 10px 14px;
      background: var(--bg-base);
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      justify-content: space-between;
      word-break: break-all;
    }

    .article-link-item:hover {
      color: var(--primary);
      background: var(--primary-soft);
    }

    /* 代理加盟政策 */
    .partner-banner {
      background: linear-gradient(135deg, #be123c, #e11d48, #ec4899);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      box-shadow: var(--shadow-lg);
    }

    .partner-content h3 {
      font-size: 28px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .partner-content p {
      font-size: 15px;
      opacity: 0.95;
      max-width: 600px;
      line-height: 1.6;
    }

    /* 联系我们与客服矩阵 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: center;
    }

    .qr-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 30px;
      text-align: center;
      box-shadow: var(--shadow-md);
    }

    .qr-image-wrapper {
      max-width: 180px;
      margin: 0 auto 16px auto;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
    }

    .contact-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .contact-meta-item {
      background: #ffffff;
      padding: 18px 22px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-light);
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .contact-meta-item strong {
      color: var(--primary);
      font-size: 15px;
      min-width: 100px;
    }

    .contact-meta-item span {
      color: var(--text-secondary);
      font-size: 15px;
    }

    /* 底部专属统一系统页脚 */
    .site-footer {
      background-color: #ffffff;
      color: var(--text-secondary);
      border-top: 1px solid var(--border-color);
      padding: 60px 0 30px;
      margin-top: 60px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1.6fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid var(--border-light);
    }

    .footer-brand .ai-page-logo {
      height: 38px;
      width: auto;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-muted);
    }

    .footer-links h5,
    .footer-friendship h5 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .friendship-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .friendship-tags a {
      font-size: 13px;
      color: var(--text-secondary);
      background: var(--bg-base);
      border: 1px solid var(--border-light);
      padding: 5px 12px;
      border-radius: var(--radius-sm);
    }

    .friendship-tags a:hover {
      color: var(--primary);
      border-color: var(--primary);
      background: #ffffff;
    }

    .footer-bottom {
      padding-top: 25px;
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 悬浮工具与回到顶部 */
    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 30px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 999;
    }

    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-weight: bold;
      cursor: pointer;
      transition: all 0.3s;
    }

    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: scale(1.08);
    }

    /* 响应式样式适配 */
    @media (max-width: 992px) {
      .hero-grid,
      .about-wrap,
      .case-gallery-grid,
      .info-dual-grid,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .service-grid,
      .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .solution-tabs {
        grid-template-columns: repeat(2, 1fr);
      }

      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }

      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-top {
        grid-template-columns: 1fr;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        border-bottom: 1px solid var(--border-light);
      }

      .nav-links.show {
        display: flex;
      }

      .nav-links li {
        width: 100%;
        text-align: center;
      }

      .nav-toggle {
        display: flex;
      }
    }

    @media (max-width: 640px) {
      .hero-title {
        font-size: 30px;
      }

      .service-grid,
      .solution-tabs,
      .testimonials-grid,
      .flow-steps,
      .custom-form {
        grid-template-columns: 1fr;
      }

      .form-group.full-width {
        grid-column: span 1;
      }

      .partner-banner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
      }

      .review-score-hero {
        flex-direction: column;
        text-align: center;
        gap: 16px;
      }

      .score-right {
        text-align: center;
      }

      .floating-tools {
        right: 12px;
        bottom: 20px;
      }
    }