* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      background: linear-gradient(145deg, #fdf8f2 0%, #fff5ed 100%);
      color: #1e1a17;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 通用按钮 */
    .btn {
      display: inline-block;
      background: #e84a2e;
      color: #fff;
      font-weight: 600;
      padding: 12px 32px;
      border-radius: 60px;
      border: none;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
      box-shadow: 0 8px 18px rgba(232, 74, 46, 0.25);
      font-size: 1rem;
      line-height: 1.2;
    }
    .btn:hover {
      background: #c93d24;
      transform: translateY(-2px);
      box-shadow: 0 12px 22px rgba(232, 74, 46, 0.35);
    }
    .btn-outline {
      background: transparent;
      color: #b43a1f;
      border: 1.5px solid #e84a2e;
      box-shadow: none;
    }
    .btn-outline:hover {
      background: #e84a2e;
      color: #fff;
      box-shadow: 0 8px 18px rgba(232, 74, 46, 0.25);
    }
    /* 导航 */
    .site-header {
      background: rgba(255, 250, 245, 0.92);
      backdrop-filter: blur(8px);
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(232, 74, 46, 0.12);
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      font-size: 1.45rem;
      color: #1e1a17;
      letter-spacing: -0.02em;
    }
    .brand img {
      width: 42px;
      height: 42px;
      object-fit: contain;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links li {
      margin: 0 2px;
    }
    .nav-links a {
      font-size: 0.94rem;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 30px;
      color: #3d322b;
      transition: background 0.15s, color 0.15s;
      white-space: nowrap;
    }
    .nav-links a:hover {
      background: #ffe9e1;
      color: #b43a1f;
    }
    .nav-links .home-link {
      font-weight: 600;
      color: #e84a2e;
    }
    .nav-cta .btn {
      padding: 9px 22px;
      font-size: 0.9rem;
    }
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.8rem;
      line-height: 1;
      cursor: pointer;
      color: #1e1a17;
    }
    /* 首屏 hero — 无图片 */
    .hero {
      padding: 70px 0 90px;
      position: relative;
      overflow: hidden;
    }
    .hero::after {
      content: '';
      position: absolute;
      top: -10%;
      right: -8%;
      width: 520px;
      height: 520px;
      background: radial-gradient(circle, rgba(232, 74, 46, 0.10) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
      z-index: 0;
    }
    .hero .container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 50px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: clamp(2.2rem, 4vw, 3.4rem);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.03em;
      color: #1c1714;
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      color: #e84a2e;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: #4d3e36;
      margin-bottom: 32px;
      max-width: 580px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 40px;
    }
    .hero-stats {
      display: flex;
      gap: 36px;
      flex-wrap: wrap;
    }
    .stat-item strong {
      display: block;
      font-size: 1.9rem;
      color: #e84a2e;
      font-weight: 700;
      line-height: 1.1;
    }
    .stat-item span {
      font-size: 0.88rem;
      color: #6b5a50;
      letter-spacing: 0.02em;
    }
    .hero-visual {
      display: flex;
      flex-direction: column;
      gap: 20px;
      align-items: flex-end;
    }
    .hero-highlight-card {
      background: #fff8f4;
      border: 1px solid rgba(232, 74, 46, 0.2);
      border-radius: 36px;
      padding: 28px 30px;
      width: 100%;
      max-width: 400px;
      box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.08);
      transition: transform 0.2s ease;
    }
    .hero-highlight-card:hover {
      transform: translateY(-4px);
    }
    .hero-highlight-card h3 {
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1e1a17;
    }
    .hero-highlight-card p {
      color: #5a4a41;
      font-size: 0.97rem;
    }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .tag-cloud span {
      background: #ffe1d6;
      color: #b43a1f;
      font-size: 0.8rem;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: 40px;
    }
    /* section 通用 */
    .section {
      padding: 80px 0;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }
    .section-header h2 {
      font-size: clamp(1.9rem, 3vw, 2.6rem);
      font-weight: 700;
      letter-spacing: -0.02em;
      color: #1c1714;
      margin-bottom: 14px;
    }
    .section-header p {
      color: #5f5048;
      font-size: 1.06rem;
    }
    /* 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 1.7rem;
      color: #1e1a17;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .about-text p {
      margin-bottom: 16px;
      color: #4b3f38;
    }
    .about-features {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      margin-top: 24px;
    }
    .about-feature-item {
      background: #fff;
      padding: 16px 18px;
      border-radius: 24px;
      border: 1px solid #f0ded5;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
      font-weight: 500;
    }
    .about-feature-item::before {
      content: '✦';
      color: #e84a2e;
      margin-right: 8px;
      font-weight: 700;
    }
    .about-image-box {
      background: #faece4;
      border-radius: 40px;
      padding: 8px;
      box-shadow: 0 30px 40px -20px rgba(0, 0, 0, 0.15);
    }
    /* 数据指标卡片 */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .metric-card {
      background: #ffffff;
      border-radius: 28px;
      padding: 30px 24px;
      text-align: center;
      box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.06);
      border: 1px solid #f5e3da;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .metric-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 18px 32px -10px rgba(232, 74, 46, 0.12);
    }
    .metric-card .number {
      font-size: 2.6rem;
      font-weight: 700;
      color: #e84a2e;
      line-height: 1.2;
    }
    .metric-card .label {
      color: #6b5a50;
      font-size: 0.94rem;
    }
    /* 服务能力卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .service-card {
      background: #ffffff;
      border-radius: 32px;
      padding: 32px 28px;
      box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.05);
      border: 1px solid #f7e7df;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 24px 40px -12px rgba(232, 74, 46, 0.15);
    }
    .service-card h3 {
      font-size: 1.4rem;
      margin-bottom: 12px;
      color: #1e1a17;
      font-weight: 600;
    }
    .service-card p {
      color: #5f5048;
      margin-bottom: 18px;
      font-size: 0.97rem;
    }
    .service-card ul {
      list-style: none;
      padding: 0;
    }
    .service-card li {
      padding: 6px 0 6px 20px;
      position: relative;
      color: #3e322c;
      font-size: 0.95rem;
    }
    .service-card li::before {
      content: '•';
      color: #e84a2e;
      font-weight: 700;
      position: absolute;
      left: 2px;
    }
    /* 流程步骤 */
    .steps-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 24px;
    }
    .step-item {
      flex: 1 1 180px;
      background: #fff;
      border-radius: 28px;
      padding: 28px 20px;
      text-align: center;
      border: 1px solid #f2dfd4;
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.02);
    }
    .step-num {
      display: inline-block;
      width: 48px;
      height: 48px;
      line-height: 48px;
      background: #e84a2e;
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      margin-bottom: 18px;
    }
    .step-item h4 {
      font-size: 1.15rem;
      margin-bottom: 8px;
      color: #1e1a17;
    }
    .step-item p {
      font-size: 0.9rem;
      color: #6b5a50;
    }
    /* 对比表格 */
    .compare-wrap {
      overflow-x: auto;
      border-radius: 28px;
      border: 1px solid #f2dfd5;
      background: #fff;
      box-shadow: 0 10px 20px -8px rgba(0, 0, 0, 0.04);
    }
    .compare-table {
      width: 100%;
      min-width: 680px;
      border-collapse: collapse;
      font-size: 0.95rem;
    }
    .compare-table th,
    .compare-table td {
      padding: 20px 24px;
      text-align: left;
      border-bottom: 1px solid #fae3d9;
    }
    .compare-table th {
      background: #fff4ef;
      font-weight: 600;
      color: #1e1a17;
      font-size: 0.94rem;
      letter-spacing: 0.01em;
    }
    .compare-table td {
      color: #4b3f38;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .highlight-cell {
      color: #e84a2e;
      font-weight: 600;
    }
    /* 评分大卡片 */
    .rating-card {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 24px;
      background: #fff;
      border-radius: 32px;
      padding: 30px 36px;
      border: 1px solid #f7e2d8;
      margin-bottom: 32px;
      box-shadow: 0 12px 28px -12px rgba(232, 74, 46, 0.12);
    }
    .rating-score {
      font-size: 3rem;
      font-weight: 800;
      color: #e84a2e;
      line-height: 1;
    }
    .rating-text {
      flex: 1;
    }
    .rating-text p {
      color: #3e322c;
      font-weight: 500;
    }
    /* FAQ */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: #fff;
      border-radius: 24px;
      border: 1px solid #f2dfd5;
      overflow: hidden;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.02);
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 26px;
      font-weight: 600;
      font-size: 1.05rem;
      color: #1e1a17;
      cursor: pointer;
      transition: background 0.15s;
    }
    .faq-question:hover {
      background: #fffaf7;
    }
    .faq-question::after {
      content: '＋';
      font-size: 1.4rem;
      color: #e84a2e;
      transition: transform 0.25s;
    }
    .faq-item.open .faq-question::after {
      content: '－';
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.2s;
      padding: 0 26px;
      color: #4f4039;
      background: #fffcf9;
    }
    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 26px 22px;
    }
    /* 评论卡片 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .review-card {
      background: #fff;
      border-radius: 28px;
      padding: 26px;
      border: 1px solid #f7e7df;
      box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.04);
      transition: transform 0.2s;
    }
    .review-card:hover {
      transform: translateY(-4px);
    }
    .review-stars {
      color: #e84a2e;
      letter-spacing: 2px;
      margin-bottom: 12px;
      font-size: 1rem;
    }
    .review-text {
      color: #3e322c;
      font-size: 0.96rem;
      margin-bottom: 18px;
      font-style: italic;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar {
      width: 42px;
      height: 42px;
      background: #ffe1d6;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #b43a1f;
      font-size: 1rem;
    }
    .user-info strong {
      display: block;
      font-size: 0.95rem;
      color: #1e1a17;
    }
    .user-info span {
      font-size: 0.8rem;
      color: #8a7266;
    }
    /* 案例 & 文章 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 28px;
    }
    .case-card {
      background: #fff;
      border-radius: 32px;
      overflow: hidden;
      border: 1px solid #f0ded5;
      box-shadow: 0 12px 24px -12px rgba(0, 0, 0, 0.06);
    }
    .case-img {
      background: #faece4;
      padding: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img img {
      border-radius: 24px;
      object-fit: contain;
      max-height: 200px;
    }
    .case-body {
      padding: 24px 26px;
    }
    .case-body h4 {
      font-size: 1.25rem;
      margin-bottom: 8px;
      color: #1e1a17;
    }
    .case-body p {
      color: #5f5048;
      font-size: 0.94rem;
    }
    .articles-list {
      list-style: none;
      padding: 0;
      display: grid;
      gap: 16px;
    }
    .articles-list li a {
      display: flex;
      align-items: center;
      padding: 16px 20px;
      background: #fff;
      border-radius: 20px;
      border: 1px solid #f2dfd5;
      color: #2f2622;
      font-weight: 500;
      transition: background 0.15s, transform 0.1s;
    }
    .articles-list li a:hover {
      background: #fff5f0;
      transform: translateX(4px);
    }
    /* 表单 */
    .form-card {
      background: #fff;
      border-radius: 36px;
      padding: 44px 40px;
      box-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.1);
      border: 1px solid #f7e7df;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }
    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
      color: #3e322c;
    }
    .form-group input,
    .form-group select,
    .form-group textarea {
      padding: 14px 18px;
      border-radius: 18px;
      border: 1px solid #ecd9cf;
      font-family: inherit;
      font-size: 0.95rem;
      background: #fffbf9;
      transition: border 0.15s, box-shadow 0.15s;
    }
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      outline: none;
      border-color: #e84a2e;
      box-shadow: 0 0 0 3px rgba(232, 74, 46, 0.1);
    }
    .form-group textarea {
      min-height: 110px;
      resize: vertical;
    }
    .form-submit {
      grid-column: span 2;
      margin-top: 12px;
      text-align: center;
    }
    .form-submit button {
      width: 100%;
      max-width: 280px;
    }
    /* 页脚 */
    .site-footer {
      background: #1e1a17;
      color: #eae1dc;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1.2fr 1.2fr 1.2fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand p {
      color: #b3a49b;
      margin: 18px 0;
      font-size: 0.92rem;
    }
    .footer-links h4 {
      color: #fff;
      font-size: 1rem;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links ul {
      list-style: none;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #b3a49b;
      font-size: 0.9rem;
      transition: color 0.15s;
    }
    .footer-links a:hover {
      color: #f0b8a5;
    }
    .footer-contact p {
      color: #b3a49b;
      font-size: 0.9rem;
      margin-bottom: 8px;
    }
    .footer-bottom {
      border-top: 1px solid #3b2f2a;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      color: #8f7d74;
      font-size: 0.85rem;
    }
    .footer-bottom a {
      color: #c4a99e;
    }
    /* 浮动客服 */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 60;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
    }
    .float-btn {
      width: 56px;
      height: 56px;
      background: #e84a2e;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(232, 74, 46, 0.4);
      color: #fff;
      font-weight: 600;
      font-size: 1.4rem;
      cursor: pointer;
      transition: transform 0.15s;
      border: none;
    }
    .float-btn:hover {
      transform: scale(1.05);
    }
    .back-to-top {
      background: #3d322b;
      font-size: 1.6rem;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      width: 44px;
      height: 44px;
    }
    /* 响应式 */
    @media (max-width: 992px) {
      .hero .container {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .hero-visual {
        align-items: flex-start;
      }
      .hero-highlight-card {
        max-width: 100%;
      }
      .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .reviews-grid {
        grid-template-columns: 1fr 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: #fffaf6;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 24px;
        gap: 4px;
        border-bottom: 1px solid #f2dfd5;
        box-shadow: 0 20px 30px rgba(0, 0, 0, 0.06);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links a {
        display: block;
        padding: 12px 8px;
        border-radius: 10px;
      }
      .menu-toggle {
        display: block;
      }
      .nav-cta {
        display: none;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .form-submit {
        grid-column: span 1;
      }
      .services-grid {
        grid-template-columns: 1fr;
      }
      .reviews-grid {
        grid-template-columns: 1fr;
      }
      .cases-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .section {
        padding: 60px 0;
      }
    }
    @media (max-width: 480px) {
      .metrics-grid {
        grid-template-columns: 1fr;
      }
      .hero-actions .btn {
        width: 100%;
        text-align: center;
      }
    }