:root {
      --primary: #4f46e5;
      --primary-light: #6366f1;
      --accent-pink: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 14px -2px rgba(79, 70, 229, 0.08);
      --shadow-lg: 0 10px 25px -4px rgba(79, 70, 229, 0.12);
      --radius: 12px;
      --radius-lg: 20px;
      --container-max: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.07) 0px, transparent 50%),
        radial-gradient(at 100% 30%, rgba(236, 72, 153, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 80%, rgba(6, 182, 212, 0.05) 0px, transparent 50%);
      background-attachment: fixed;
      color: var(--text-main);
      line-height: 1.6;
      font-size: 15px;
      overflow-x: hidden;
    }

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

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: 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, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

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

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

    .logo-wrapper {
      max-height: 40px;
      display: flex;
      align-items: center;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .badge-trend {
      font-size: 11px;
      padding: 2px 8px;
      background: linear-gradient(135deg, var(--accent-pink), var(--primary));
      color: #ffffff;
      border-radius: 20px;
      font-weight: 600;
      text-transform: uppercase;
    }

    .nav-menu {
      display: flex;
      align-items: center;
    }

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

    .nav-links li a {
      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);
      background: rgba(79, 70, 229, 0.06);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .btn-nav-primary {
      background: linear-gradient(135deg, var(--primary), var(--accent-pink));
      color: #ffffff !important;
      padding: 8px 18px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 14px;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    }

    .btn-nav-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
    }

    .mobile-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 8px;
      border-radius: 8px;
      cursor: pointer;
    }

    /* 通用章节样式 */
    .section-padding {
      padding: 64px 0;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 44px;
    }

    .section-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 4px 14px;
      border-radius: 30px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
    }

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

    /* 艳色潮流 Hero - 绝不出现任何图片 */
    .hero-section {
      padding: 70px 0 60px;
      position: relative;
    }

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

    .hero-content {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }

    .hero-h1 {
      font-size: 2.35rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      line-height: 1.25;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .hero-h1 span.gradient-text {
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-pink) 60%, var(--accent-amber) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 28px;
      line-height: 1.7;
    }

    .hero-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 30px;
    }

    .btn-hero-official {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 32px;
      background: linear-gradient(135deg, var(--primary), var(--accent-pink));
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      border-radius: 36px;
      box-shadow: 0 10px 20px rgba(79, 70, 229, 0.3);
      border: none;
    }

    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 26px rgba(79, 70, 229, 0.4);
      color: #ffffff;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 26px;
      background: #ffffff;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 600;
      border-radius: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .btn-hero-secondary:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #fafafa;
    }

    .hero-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .chip-item {
      font-size: 12px;
      padding: 4px 10px;
      background: rgba(255, 255, 255, 0.85);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 首屏右侧：纯CSS几何与数据交互卡片，绝对无图 */
    .hero-visual-card {
      background: linear-gradient(145deg, #ffffff, #f1f5f9);
      border-radius: var(--radius-lg);
      border: 2px solid rgba(255, 255, 255, 0.8);
      padding: 28px;
      box-shadow: var(--shadow-lg);
      position: relative;
    }

    .visual-top-bar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--border-color);
    }

    .status-badge {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      color: #10b981;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 8px #10b981;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-bottom: 20px;
    }

    .matrix-box {
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .matrix-num {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

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

    .hero-pipeline-preview {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 14px;
      border: 1px solid var(--border-color);
    }

    .pipeline-step {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 6px 0;
      font-size: 13px;
      border-bottom: 1px solid #f1f5f9;
    }

    .pipeline-step:last-child {
      border-bottom: none;
    }

    .pipeline-status {
      font-weight: 600;
      color: var(--primary);
    }

    /* 模块：关于我们与平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }

    .about-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

    .about-lead {
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 16px;
    }

    .platform-feature-list {
      list-style: none;
      margin-top: 20px;
      display: grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }

    .platform-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .check-icon {
      flex-shrink: 0;
      width: 18px;
      height: 18px;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: bold;
    }

    /* 服务能力卡片与主打场景 (一站式制作与服务) */
    .cards-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(99, 102, 241, 0.4);
    }

    .card-icon-trend {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.15));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .feature-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .feature-text {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 聚合模型展示 */
    .model-tags-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .model-tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 16px;
    }

    .model-tag {
      padding: 6px 14px;
      background: #f1f5f9;
      color: var(--text-main);
      font-size: 13px;
      font-weight: 600;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      transition: all 0.2s;
    }

    .model-tag:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 标准流程时间线 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      position: relative;
    }

    .step-box {
      background: var(--bg-card);
      border-radius: var(--radius);
      padding: 24px;
      border: 1px solid var(--border-color);
      position: relative;
      box-shadow: var(--shadow-sm);
    }

    .step-index {
      font-size: 2rem;
      font-weight: 900;
      color: rgba(79, 70, 229, 0.15);
      line-height: 1;
      margin-bottom: 10px;
    }

    .step-box h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-box p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 对比评测要求板块 */
    .compare-section-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px;
      border: 2px solid #e0e7ff;
      box-shadow: var(--shadow-lg);
    }

    .score-banner {
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(236, 72, 153, 0.08));
      border-radius: var(--radius);
      padding: 20px 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-left h3 {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .score-left p {
      font-size: 14px;
      color: var(--text-muted);
    }

    .score-badge-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 1.25rem;
      letter-spacing: 2px;
      font-weight: 700;
    }

    .score-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
    }

    .score-number small {
      font-size: 1rem;
      color: var(--text-muted);
      font-weight: normal;
    }

    .compare-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: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }

    .highlight-col {
      background: rgba(79, 70, 229, 0.03);
      font-weight: 600;
      color: var(--primary);
    }

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden;
      background: #e2e8f0;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }

    .case-tag {
      font-size: 11px;
      font-weight: 700;
      color: var(--accent-pink);
      text-transform: uppercase;
      margin-bottom: 6px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13.5px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 用户评论卡片 6条 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 16px;
      line-height: 1.6;
      font-style: italic;
    }

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

    .user-avatar-initial {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

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

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

    /* FAQ 手风琴面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all 0.2s;
    }

    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

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

    .faq-answer {
      display: none;
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      border-top: 1px dashed transparent;
    }

    .faq-item.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-item.active .faq-answer {
      display: block;
      border-top-color: #f1f5f9;
    }

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

    /* 需求匹配与联系表单 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.15fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .contact-info-col {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .qr-box {
      background: #f8fafc;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      text-align: center;
      max-width: 260px;
    }

    .qr-box img {
      width: 140px;
      height: 140px;
      object-fit: contain;
      margin: 0 auto 10px;
      display: block;
      border-radius: 8px;
    }

    .qr-box span {
      font-size: 13px;
      color: var(--text-muted);
    }

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

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 13.5px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: border-color 0.2s;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
    }

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

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, var(--primary), var(--accent-pink));
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
      transition: all 0.25s;
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* 行业资讯与最新文章 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .news-link-card {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 20px;
      border: 1px solid var(--border-color);
      display: block;
      transition: all 0.25s;
    }

    .news-link-card:hover {
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    .news-badge {
      font-size: 11px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(79, 70, 229, 0.08);
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }

    .news-title {
      font-size: 14.5px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
      line-height: 1.4;
    }

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

    /* 页脚与友情链接 */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 50px 0 30px;
      margin-top: 50px;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      margin-bottom: 36px;
    }

    .footer-col h5 {
      font-size: 15px;
      color: #ffffff;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 13.5px;
      line-height: 1.6;
      margin-bottom: 12px;
    }

    .footer-links-list {
      list-style: none;
    }

    .footer-links-list li {
      margin-bottom: 8px;
    }

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

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

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding: 20px 0;
      margin-bottom: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .friend-links-title {
      font-size: 13px;
      font-weight: 700;
      color: #cbd5e1;
    }

    .friend-links-box a {
      color: #94a3b8;
      font-size: 12.5px;
      background: #1e293b;
      padding: 3px 10px;
      border-radius: 4px;
    }

    .friend-links-box a:hover {
      color: #ffffff;
      background: #334155;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 20px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

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

    .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;
      cursor: pointer;
      color: var(--primary);
      position: relative;
    }

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

    .float-qr-pop {
      position: absolute;
      right: 56px;
      bottom: 0;
      width: 140px;
      background: #ffffff;
      padding: 10px;
      border-radius: 8px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: none;
      text-align: center;
    }

    .float-qr-pop img {
      width: 120px;
      height: 120px;
      display: block;
      margin: 0 auto 6px;
    }

    .float-qr-pop span {
      font-size: 11px;
      color: var(--text-muted);
    }

    .float-btn:hover .float-qr-pop {
      display: block;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-wrapper, .about-grid, .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .cards-grid-3, .case-grid, .reviews-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cards-grid-4, .process-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-menu.active {
        display: block;
      }
      .nav-links {
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .mobile-toggle {
        display: block;
      }
      .hero-h1 {
        font-size: 1.85rem;
      }
      .cards-grid-3, .cards-grid-4, .case-grid, .reviews-grid, .news-grid, .process-steps {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }