:root {
      --primary: #059669;
      --primary-hover: #047857;
      --primary-light: #d1fae5;
      --primary-mint: #10b981;
      --primary-subtle: #ecfdf5;
      --accent: #0f766e;
      --bg-page: #f8fafc;
      --bg-surface: #ffffff;
      --bg-alt: #f0fdf4;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-soft: #64748b;
      --border-color: #e2e8f0;
      --border-mint: #a7f3d0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 12px rgba(16, 185, 129, 0.08);
      --shadow-lg: 0 10px 25px rgba(5, 150, 105, 0.12);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-xl: 24px;
      --transition: all 0.28s ease;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover {
      color: var(--primary-hover);
    }

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .section-padding {
      padding: 72px 0;
    }

    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 48px auto;
    }

    .badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background-color: var(--primary-subtle);
      color: var(--primary);
      border: 1px solid var(--border-mint);
      padding: 4px 14px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
      letter-spacing: -0.02em;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(167, 243, 208, 0.5);
      transition: var(--transition);
    }

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

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

    .brand-group .ai-page-logo {
      height: 38px;
      width: auto;
    }

    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      flex-direction: column;
      line-height: 1.1;
    }
    .brand-name small {
      font-size: 0.72rem;
      color: var(--primary);
      font-weight: 500;
      letter-spacing: 0.05em;
    }

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

    .nav-links li a {
      color: var(--text-main);
      font-size: 0.94rem;
      font-weight: 500;
      padding: 8px 14px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      text-align: center;
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(5, 150, 105, 0.35);
    }

    .btn-secondary {
      background-color: #ffffff;
      color: var(--primary) !important;
      border-color: var(--primary-mint);
    }
    .btn-secondary:hover {
      background-color: var(--primary-subtle);
      transform: translateY(-2px);
    }

    .btn-outline {
      background-color: transparent;
      color: var(--text-main) !important;
      border-color: var(--border-color);
    }
    .btn-outline:hover {
      background-color: #ffffff;
      border-color: var(--primary);
      color: var(--primary) !important;
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    /* 首屏 HERO 区域 - 严禁出现任何图片 */
    .hero-section {
      background: radial-gradient(circle at 80% 20%, #d1fae5 0%, rgba(240, 253, 244, 0.7) 45%, #f8fafc 100%);
      padding: 80px 0 64px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }

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

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

    .hero-h1 {
      font-size: 2.5rem;
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }

    .hero-h1 span {
      color: var(--primary);
      background: linear-gradient(120deg, #059669, #10b981);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 1.12rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 580px;
    }

    .hero-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 36px;
    }

    .hero-features-list {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .hero-features-list span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-features-list span::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
      background: var(--primary-light);
      width: 18px;
      height: 18px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
    }

    /* 首屏右侧纯 CSS / 矢量数据面板（无图片） */
    .hero-visual-card {
      background: #ffffff;
      border: 1px solid var(--border-mint);
      border-radius: var(--radius-xl);
      padding: 32px;
      box-shadow: 0 20px 40px rgba(5, 150, 105, 0.08);
      position: relative;
    }

    .console-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 16px;
      margin-bottom: 20px;
    }

    .console-dots {
      display: flex;
      gap: 6px;
    }
    .console-dots span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: #cbd5e1;
    }
    .console-dots span:nth-child(1) { background-color: #f87171; }
    .console-dots span:nth-child(2) { background-color: #fbbf24; }
    .console-dots span:nth-child(3) { background-color: #34d399; }

    .console-tag {
      font-size: 0.78rem;
      font-family: monospace;
      color: var(--primary);
      background: var(--primary-subtle);
      padding: 2px 8px;
      border-radius: 4px;
    }

    .console-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-bottom: 20px;
    }

    .console-stat-box {
      background: var(--bg-alt);
      border: 1px solid var(--border-mint);
      border-radius: var(--radius-md);
      padding: 16px;
    }
    .console-stat-label {
      font-size: 0.82rem;
      color: var(--text-soft);
      margin-bottom: 4px;
    }
    .console-stat-value {
      font-size: 1.45rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .console-stat-value small {
      font-size: 0.8rem;
      color: var(--primary);
      margin-left: 2px;
    }

    .model-chips-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .model-chip {
      font-size: 0.75rem;
      background: #f1f5f9;
      color: var(--text-muted);
      padding: 4px 10px;
      border-radius: var(--radius-sm);
      border: 1px solid #e2e8f0;
      font-weight: 500;
    }
    .model-chip.highlight {
      background: var(--primary-subtle);
      color: var(--primary);
      border-color: var(--border-mint);
      font-weight: 600;
    }

    /* 平台核心模型滚动栏 */
    .model-ticker-section {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      padding: 20px 0;
      overflow: hidden;
    }

    .ticker-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-soft);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 12px;
      text-align: center;
    }

    .ticker-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px 18px;
    }

    .ticker-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      background: var(--bg-page);
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid var(--border-color);
    }
    .ticker-item::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background-color: var(--primary-mint);
    }

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

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    /* AIGC 服务卡片 */
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .service-card:hover {
      border-color: var(--border-mint);
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .service-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: var(--primary-subtle);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .service-desc {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
      flex-grow: 1;
    }

    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: auto;
    }

    .service-tag {
      font-size: 0.75rem;
      color: var(--primary-hover);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
    }

    /* 一站式制作全景 */
    .feature-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }
    .feature-box:hover {
      border-color: var(--primary-mint);
      box-shadow: var(--shadow-md);
    }
    .feature-box.featured {
      background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
      border-color: var(--border-mint);
    }
    .feature-badge {
      position: absolute;
      top: 16px;
      right: 16px;
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 999px;
    }

    /* 对比评测表格与卡片 */
    .comparison-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-mint);
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: var(--bg-alt);
      border: 1px solid var(--border-mint);
      border-radius: var(--radius-lg);
      padding: 20px 28px;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .rating-score {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }
    .stars {
      color: #f59e0b;
      font-size: 1.2rem;
      letter-spacing: 2px;
    }

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

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 600px;
    }

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.95rem;
    }

    .custom-table th {
      background-color: var(--bg-page);
      color: var(--text-main);
      font-weight: 700;
    }

    .custom-table tr:hover td {
      background-color: var(--primary-subtle);
    }

    .highlight-col {
      background-color: rgba(240, 253, 244, 0.6);
      font-weight: 600;
      color: var(--primary-hover);
    }

    /* 流程与步骤 */
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      position: relative;
      transition: var(--transition);
    }
    .step-card:hover {
      border-color: var(--primary);
      transform: translateY(-4px);
    }
    .step-number {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-mint);
      margin-bottom: 12px;
      line-height: 1;
    }

    /* 案例中心图片展示 */
    .case-gallery {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 24px;
    }

    .case-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .case-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--border-mint);
    }
    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 10;
      background: #f1f5f9;
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-item:hover .case-img-wrap img {
      transform: scale(1.04);
    }
    .case-content {
      padding: 20px;
    }
    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 客户评论 */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
      box-shadow: var(--shadow-sm);
    }
    .review-quote {
      font-size: 0.94rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 20px;
      position: relative;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .review-avatar-text {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }
    .review-meta h4 {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .review-meta p {
      font-size: 0.78rem;
      color: var(--text-soft);
    }

    /* FAQ 折叠面板 */
    .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: var(--transition);
    }
    .faq-item.active {
      border-color: var(--border-mint);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }
    .faq-question:hover {
      color: var(--primary);
    }
    .faq-icon {
      font-size: 1.2rem;
      transition: transform 0.3s ease;
      color: var(--primary);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
      background-color: var(--bg-alt);
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.65;
    }
    .faq-answer-inner {
      padding: 18px 24px;
      border-top: 1px solid var(--border-mint);
    }
    .faq-item.active .faq-answer {
      max-height: 500px;
      transition: max-height 0.35s ease-in-out;
    }

    /* 表单与转化区 */
    .form-wrapper {
      background: #ffffff;
      border: 1px solid var(--border-mint);
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow-lg);
    }

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

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      font-size: 0.95rem;
      color: var(--text-main);
      background-color: var(--bg-page);
      transition: var(--transition);
      outline: none;
      font-family: inherit;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      background-color: #ffffff;
      box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    }

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

    /* 文章资讯与外部资源 */
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      margin-top: 24px;
    }
    .article-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      list-style: none;
    }
    .article-links-list li a {
      display: inline-block;
      padding: 6px 14px;
      background: var(--bg-page);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.88rem;
      color: var(--text-muted);
    }
    .article-links-list li a:hover {
      background: var(--primary-subtle);
      color: var(--primary);
      border-color: var(--border-mint);
    }

    /* 页脚 */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 64px 0 32px 0;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand h3 {
      color: #ffffff;
      font-size: 1.3rem;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 0.9rem;
      line-height: 1.6;
      color: #94a3b8;
      margin-bottom: 20px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 18px;
      font-weight: 600;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links li a {
      color: #94a3b8;
      font-size: 0.9rem;
    }
    .footer-links li a:hover {
      color: var(--primary-mint);
    }

    .footer-contact-item {
      font-size: 0.88rem;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: #cbd5e1;
    }

    .footer-qr-box {
      margin-top: 12px;
      background: #1e293b;
      padding: 10px;
      border-radius: var(--radius-md);
      display: inline-block;
      text-align: center;
    }
    .footer-qr-box img {
      width: 100px;
      height: 100px;
      margin: 0 auto 6px auto;
      border-radius: 4px;
    }
    .footer-qr-box span {
      font-size: 0.75rem;
      color: #94a3b8;
      display: block;
    }

    .friend-links-bar {
      border-top: 1px solid #1e293b;
      padding: 24px 0;
      margin-bottom: 24px;
    }
    .friend-links-title {
      font-size: 0.85rem;
      color: #64748b;
      margin-bottom: 10px;
      font-weight: 600;
    }
    .friend-links-group {
      display: flex;
      flex-wrap: wrap;
      gap: 12px 18px;
    }
    .friend-links-group a {
      color: #94a3b8;
      font-size: 0.86rem;
    }
    .friend-links-group a:hover {
      color: var(--primary-mint);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #64748b;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 悬浮客服与返回顶部 */
    .floating-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;
      color: var(--primary);
      box-shadow: 0 4px 14px rgba(0,0,0,0.15);
      border: 1px solid var(--border-mint);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.2rem;
      position: relative;
      transition: var(--transition);
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
    }

    .qr-popover {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      padding: 12px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0,0,0,0.2);
      border: 1px solid var(--border-mint);
      display: none;
      width: 140px;
      text-align: center;
    }
    .qr-popover img {
      width: 116px;
      height: 116px;
      margin: 0 auto 6px auto;
    }
    .qr-popover p {
      font-size: 0.75rem;
      color: var(--text-main);
      font-weight: 600;
    }
    .float-btn-qr:hover .qr-popover {
      display: block;
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-wrapper {
        grid-template-columns: 1fr;
      }
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-gallery {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        width: 100%;
        padding: 10px 14px;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .grid-3, .grid-2 {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .case-gallery {
        grid-template-columns: 1fr;
      }
    }