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

    :root {
      --primary: #4f46e5;
      --primary-light: #818cf8;
      --secondary: #ec4899;
      --accent: #06b6d4;
      --bg-light: #f8fafc;
      --bg-white: #ffffff;
      --text-dark: #1e293b;
      --text-secondary: #475569;
      --text-muted: #94a3b8;
      --border-light: #e2e8f0;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
      --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      --container: 1200px;
    }

    body {
      font-family: var(--font-sans);
      color: var(--text-dark);
      background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 40%, #fdf2f8 100%);
      background-attachment: fixed;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    a {
      text-decoration: none;
      color: inherit;
    }

    ul {
      list-style: none;
    }

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

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

    /* 动画 */
    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(24px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes floatY {
      0% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
      100% { transform: translateY(0); }
    }

    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }

    /* 按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 16px;
      border: none;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.3s ease, background 0.3s ease;
      line-height: 1.2;
      text-align: center;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #7c3aed);
      color: #fff;
      box-shadow: 0 10px 20px -8px rgba(79, 70, 229, 0.4);
    }

    .btn-primary:hover {
      box-shadow: 0 14px 25px -8px rgba(79, 70, 229, 0.55);
    }

    .btn-outline {
      background: transparent;
      color: var(--primary);
      border: 2px solid var(--primary);
    }

    .btn-outline:hover {
      background: rgba(79, 70, 229, 0.05);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(8px);
      color: var(--text-dark);
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-sm);
    }

    .btn-ghost:hover {
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    /* 头部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.6);
      transition: box-shadow 0.3s ease;
    }

    .site-header.scrolled {
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 72px;
      gap: 16px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-logo {
      width: 40px;
      height: 40px;
      object-fit: contain;
      border-radius: 10px;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: -0.5px;
    }

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

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 8px 12px;
      border-radius: 8px;
      transition: color 0.2s, background 0.2s;
      white-space: nowrap;
    }

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

    .nav-cta {
      flex-shrink: 0;
    }

    .nav-cta .btn {
      padding: 10px 22px;
      font-size: 14px;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
      flex-direction: column;
      gap: 5px;
    }

    .menu-toggle span {
      display: block;
      width: 24px;
      height: 2.5px;
      background: var(--text-dark);
      border-radius: 4px;
      transition: transform 0.3s, opacity 0.3s;
    }

    /* Hero */
    .hero {
      padding: 60px 0 70px;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: '';
      position: absolute;
      top: -30%;
      right: -10%;
      width: 600px;
      height: 600px;
      background: radial-gradient(circle, rgba(129, 140, 248, 0.2) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero::after {
      content: '';
      position: absolute;
      bottom: -20%;
      left: -5%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(236, 72, 153, 0.12) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 24px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(79, 70, 229, 0.08);
      color: var(--primary);
      padding: 8px 20px;
      border-radius: 60px;
      font-size: 14px;
      font-weight: 500;
      border: 1px solid rgba(79, 70, 229, 0.15);
    }

    .hero-badge span {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      animation: floatY 2s ease-in-out infinite;
    }

    .hero h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -1px;
      color: var(--text-dark);
      max-width: 920px;
    }

    .hero h1 .highlight {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--text-secondary);
      max-width: 640px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-top: 8px;
    }

    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 20px;
      margin-top: 40px;
      width: 100%;
    }

    .stat-card {
      background: rgba(255, 255, 255, 0.75);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.9);
      border-radius: var(--radius-md);
      padding: 24px 32px;
      min-width: 160px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .stat-number {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-secondary);
      margin-top: 4px;
    }

    /* 通用 Section */
    .section {
      padding: 70px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-label {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 6px 16px;
      border-radius: 60px;
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 34px;
      font-weight: 700;
      line-height: 1.3;
      color: var(--text-dark);
      margin-bottom: 16px;
    }

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

    /* 关于我们 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: start;
    }

    .about-text h3 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-dark);
    }

    .about-text p {
      color: var(--text-secondary);
      margin-bottom: 16px;
      font-size: 15px;
      line-height: 1.8;
    }

    .about-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .tag {
      background: #fff;
      border: 1px solid var(--border-light);
      padding: 6px 16px;
      border-radius: 60px;
      font-size: 13px;
      color: var(--text-secondary);
      transition: border-color 0.2s, color 0.2s;
    }

    .tag:hover {
      border-color: var(--primary-light);
      color: var(--primary);
    }

    .about-visual {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .about-image-card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      transition: transform 0.3s;
    }

    .about-image-card:hover {
      transform: translateY(-4px);
    }

    .about-image-card img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    /* 服务卡片 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .service-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid rgba(226, 232, 240, 0.8);
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.08));
    }

    .service-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-dark);
    }

    .service-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* 流程 */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .process-step {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 22px;
      text-align: center;
      border: 1px solid var(--border-light);
      transition: transform 0.3s, box-shadow 0.3s;
      position: relative;
    }

    .process-step:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .step-num {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      font-weight: 700;
      font-size: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 14px;
    }

    .process-step h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .process-step p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 对比表格 */
    .table-wrapper {
      overflow-x: auto;
      border-radius: var(--radius-md);
      background: #fff;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 14px;
      min-width: 640px;
    }

    .compare-table th,
    .compare-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid var(--border-light);
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 600;
      color: var(--text-dark);
      font-size: 14px;
      white-space: nowrap;
    }

    .compare-table td {
      color: var(--text-secondary);
    }

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

    .rating-stars {
      color: #f59e0b;
      font-size: 18px;
      letter-spacing: 2px;
    }

    .score-badge {
      display: inline-block;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #fff;
      padding: 4px 14px;
      border-radius: 60px;
      font-weight: 700;
      font-size: 14px;
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 24px;
    }

    .case-card {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .case-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }

    .case-image {
      width: 100%;
      aspect-ratio: 16/10;
      background: #f1f5f9;
      overflow: hidden;
    }

    .case-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .case-body {
      padding: 20px;
    }

    .case-body h3 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-dark);
    }

    .case-body p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 用户评论 */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
      gap: 24px;
    }

    .review-card {
      background: #fff;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      border: 1px solid var(--border-light);
      display: flex;
      flex-direction: column;
      gap: 12px;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .review-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

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

    .review-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-light), var(--secondary));
      color: #fff;
      font-weight: 700;
      font-size: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .review-meta h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-dark);
    }

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

    .review-text {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      flex-grow: 1;
    }

    .review-stars {
      color: #f59e0b;
      font-size: 14px;
      letter-spacing: 2px;
    }

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      background: #fff;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-light);
      overflow: hidden;
      transition: box-shadow 0.3s;
    }

    .faq-item:hover {
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      cursor: pointer;
      font-weight: 600;
      font-size: 15px;
      color: var(--text-dark);
      user-select: none;
      gap: 16px;
      transition: background 0.2s;
    }

    .faq-question:hover {
      background: #f8fafc;
    }

    .faq-icon {
      font-size: 20px;
      font-weight: 300;
      color: var(--primary);
      transition: transform 0.3s;
      flex-shrink: 0;
      line-height: 1;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 22px;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.7;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
      padding: 0 22px 20px;
    }

    /* 文章列表 */
    .article-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 20px;
    }

    .article-item {
      background: #fff;
      border-radius: var(--radius-sm);
      padding: 20px;
      border: 1px solid var(--border-light);
      transition: transform 0.2s, box-shadow 0.2s;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .article-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }

    .article-item a {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-dark);
      transition: color 0.2s;
      line-height: 1.5;
    }

    .article-item a:hover {
      color: var(--primary);
    }

    .article-date {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 表单 */
    .form-wrapper {
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-light);
      max-width: 760px;
      margin: 0 auto;
    }

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

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

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

    .form-group label {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-dark);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-family: inherit;
      color: var(--text-dark);
      background: #f8fafc;
      transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
      outline: none;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary);
      background: #fff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    }

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

    .form-submit {
      margin-top: 8px;
      grid-column: 1 / -1;
    }

    .form-submit .btn {
      width: 100%;
    }

    /* 页脚 */
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 48px 0 24px;
      margin-top: auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 36px;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-brand .brand-name {
      color: #fff;
      font-size: 20px;
    }

    .footer-brand p {
      font-size: 14px;
      color: #94a3b8;
      line-height: 1.7;
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 16px;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a {
      font-size: 14px;
      color: #94a3b8;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: #fff;
    }

    .footer-links-row {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-links-row a {
      font-size: 13px;
      color: #94a3b8;
      transition: color 0.2s;
    }

    .footer-links-row a:hover {
      color: #fff;
    }

    .footer-bottom {
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 13px;
      color: #64748b;
    }

    /* 浮动客服 */
    .float-kefu {
      position: fixed;
      right: 20px;
      bottom: 100px;
      z-index: 90;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #fff;
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
      border: 1px solid var(--border-light);
      font-size: 20px;
      color: var(--primary);
      position: relative;
    }

    .float-btn:hover {
      transform: scale(1.08);
      box-shadow: var(--shadow-lg);
    }

    .float-btn .kefu-pop {
      position: absolute;
      right: 60px;
      top: 50%;
      transform: translateY(-50%) scale(0.9);
      background: #fff;
      border-radius: var(--radius-sm);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s, transform 0.2s;
      width: 150px;
    }

    .float-btn:hover .kefu-pop {
      opacity: 1;
      transform: translateY(-50%) scale(1);
      pointer-events: auto;
    }

    .kefu-pop img {
      width: 100%;
      border-radius: 6px;
    }

    .back-top {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 90;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: var(--shadow-md);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s, transform 0.3s;
      font-size: 20px;
      border: none;
    }

    .back-top.show {
      opacity: 1;
      pointer-events: auto;
    }

    .back-top:hover {
      transform: translateY(-3px);
    }

    /* 响应式 */
    @media (max-width: 1024px) {
      .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        min-height: 64px;
      }

      .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--border-light);
        gap: 4px;
        z-index: 99;
      }

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

      .nav-links a {
        width: 100%;
        padding: 10px 12px;
        border-radius: 8px;
      }

      .menu-toggle {
        display: flex;
      }

      .nav-cta {
        display: none;
      }

      .hero h1 {
        font-size: 30px;
      }

      .hero-desc {
        font-size: 16px;
      }

      .section-title {
        font-size: 26px;
      }

      .section {
        padding: 48px 0;
      }

      .hero {
        padding: 40px 0 50px;
      }

      .stat-card {
        padding: 18px 20px;
        min-width: 130px;
      }

      .stat-number {
        font-size: 26px;
      }

      .process-grid {
        grid-template-columns: 1fr;
      }

      .form-grid {
        grid-template-columns: 1fr;
      }

      .form-wrapper {
        padding: 28px 20px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .review-grid {
        grid-template-columns: 1fr;
      }

      .float-kefu {
        right: 12px;
        bottom: 80px;
      }

      .back-top {
        right: 12px;
        bottom: 24px;
      }
    }

    @media (max-width: 480px) {
      .hero h1 {
        font-size: 26px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .stat-card {
        width: 100%;
        min-width: unset;
      }

      .service-grid {
        grid-template-columns: 1fr;
      }

      .case-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 素材横版 / 方版展示 */
    .media-showcase {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 20px;
      margin-top: 32px;
    }

    .media-item {
      background: #fff;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-light);
      transition: transform 0.3s;
    }

    .media-item:hover {
      transform: translateY(-3px);
    }

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

    .media-caption {
      padding: 12px 16px;
      font-size: 13px;
      color: var(--text-secondary);
      text-align: center;
    }

    @media (max-width: 768px) {
      .media-showcase {
        grid-template-columns: 1fr;
      }
    }