:root {
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --accent: #ec4899;
      --accent-gradient: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --badge-bg: #eef2ff;
      --badge-text: #4338ca;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-focus: #818cf8;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
      --shadow-xl: 0 20px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(79, 70, 229, 0.04);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --radius-xl: 24px;
      --container-width: 1200px;
      --transition: all 0.28s ease-in-out;
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    /* 全局容器 */
    .container {
      width: 100%;
      max-width: var(--container-width);
      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, 0.95);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      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;
      text-decoration: none;
    }

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

    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      letter-spacing: -0.5px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0; /* 严格满足指令需求 */
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      color: var(--text-muted);
      font-size: 0.935rem;
      font-weight: 500;
      text-decoration: none;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      white-space: nowrap;
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: 9999px;
      text-decoration: none;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--accent-gradient);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
      color: #ffffff;
    }

    .btn-outline {
      background: #ffffff;
      color: var(--primary);
      border-color: #cbd5e1;
    }

    .btn-outline:hover {
      background: var(--badge-bg);
      border-color: var(--primary);
    }

    .btn-glow {
      background: linear-gradient(135deg, #ec4899 0%, #f43f5e 100%);
      color: #ffffff;
      font-size: 1.05rem;
      padding: 14px 34px;
      box-shadow: 0 8px 24px rgba(236, 72, 153, 0.4);
    }

    .btn-glow:hover {
      transform: scale(1.03);
      box-shadow: 0 10px 28px rgba(236, 72, 153, 0.55);
      color: #ffffff;
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .mobile-menu-toggle span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: var(--transition);
    }

    /* 区域通用规范 */
    .section-padding {
      padding: 80px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--badge-text);
      background: var(--badge-bg);
      border-radius: 9999px;
      margin-bottom: 14px;
      text-transform: uppercase;
      letter-spacing: 1px;
      border: 1px solid rgba(79, 70, 229, 0.15);
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 首屏 HERO 纯CSS设计 (无图片) */
    .hero-section {
      padding: 90px 0 70px;
      background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.12) 0%, rgba(255, 255, 255, 0) 50%),
                  radial-gradient(circle at 20% 80%, rgba(79, 70, 229, 0.12) 0%, rgba(255, 255, 255, 0) 60%),
                  #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-badge-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #fdf2f8;
      border: 1px solid #fbcfe8;
      color: #db2777;
      font-size: 0.9rem;
      font-weight: 700;
      border-radius: 9999px;
      margin-bottom: 24px;
    }

    .hero-h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-h1 span {
      background: var(--accent-gradient);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subhead {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-btn-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .hero-highlights-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: center;
    }

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

    .hero-stat-card .num {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }

    .hero-stat-card .label {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 滚动模型矩阵胶囊 */
    .model-tags-wrapper {
      padding: 30px 0;
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      overflow: hidden;
    }

    .model-tags-title {
      text-align: center;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      letter-spacing: 1px;
    }

    .model-tags-flex {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      max-width: 1100px;
      margin: 0 auto;
    }

    .model-pill {
      background: #f1f5f9;
      color: var(--text-main);
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 9999px;
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: translateY(-2px);
    }

    /* 卡片网格通用 */
    .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;
      align-items: center;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
      border-color: var(--border-focus);
    }

    .feature-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(236, 72, 153, 0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      flex-grow: 1;
    }

    /* 对比评测板块 */
    .review-score-banner {
      background: linear-gradient(135deg, #312e81 0%, #1e1b4b 100%);
      color: #ffffff;
      border-radius: var(--radius-xl);
      padding: 40px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
      box-shadow: var(--shadow-xl);
    }

    .score-left h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 8px;
      color: #ffffff;
    }

    .score-stars {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }

    .score-badge-circle {
      background: rgba(255, 255, 255, 0.1);
      border: 2px solid rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-lg);
      padding: 16px 28px;
      text-align: center;
    }

    .score-badge-circle .score-num {
      font-size: 3rem;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1;
    }

    .score-badge-circle .score-total {
      font-size: 0.9rem;
      color: #94a3b8;
    }

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

    .custom-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }

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

    .custom-table th {
      background: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
      font-size: 0.95rem;
    }

    .custom-table td {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    .custom-table tr:hover td {
      background: #fdf4ff;
    }

    .highlight-col {
      background: #fdf2f8;
      font-weight: 700;
      color: #db2777;
    }

    /* 案例展示画廊 */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

    .gallery-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

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

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

    .gallery-card .img-wrapper.square-ratio {
      aspect-ratio: 4 / 3;
    }

    .gallery-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

    .gallery-card:hover img {
      transform: scale(1.04);
    }

    .gallery-card-body {
      padding: 20px;
    }

    .gallery-card-body h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .gallery-card-body p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .banners-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 30px;
    }

    .banner-item {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

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

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

    .process-step {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 16px;
      text-align: center;
      position: relative;
      transition: var(--transition);
    }

    .process-step:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }

    .step-number {
      width: 36px;
      height: 36px;
      background: var(--accent-gradient);
      color: #ffffff;
      font-weight: 800;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px;
      font-size: 1rem;
    }

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

    .process-step p {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 需求表单模块 */
    .form-wrapper-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-xl);
      padding: 40px;
      box-shadow: var(--shadow-xl);
      max-width: 800px;
      margin: 0 auto;
    }

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

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

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

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

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      background: #f8fafc;
      color: var(--text-main);
      transition: var(--transition);
      outline: none;
    }

    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

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

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 880px;
      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:hover {
      border-color: var(--border-focus);
    }

    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      user-select: none;
    }

    .faq-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.25s ease;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fdf4ff;
    }

    .faq-answer p {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

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

    .faq-item.open .faq-answer {
      max-height: 240px;
    }

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

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .review-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: var(--accent-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .review-author h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .review-author p {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    .review-text {
      font-size: 0.925rem;
      color: var(--text-muted);
      line-height: 1.65;
      font-style: italic;
    }

    /* 资讯与百科文章 */
    .article-links-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 28px;
    }

    .article-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-list li a {
      color: var(--primary);
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      word-break: break-all;
    }

    .article-list li a:hover {
      color: var(--accent);
      text-decoration: underline;
    }

    /* 代理加盟板块 */
    .agency-banner {
      background: linear-gradient(135deg, #fdf4ff 0%, #ede9fe 100%);
      border: 1px solid #e9d5ff;
      border-radius: var(--radius-xl);
      padding: 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      flex-wrap: wrap;
    }

    .agency-info {
      max-width: 650px;
    }

    .agency-info h3 {
      font-size: 1.85rem;
      font-weight: 800;
      color: #581c87;
      margin-bottom: 12px;
    }

    .agency-info p {
      font-size: 1.05rem;
      color: #6b21a8;
      line-height: 1.7;
    }

    /* 联系客服区 */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }

    .contact-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 16px;
      margin-bottom: 20px;
    }

    .contact-item-icon {
      width: 40px;
      height: 40px;
      background: var(--badge-bg);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      flex-shrink: 0;
    }

    .contact-item-info h4 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .contact-item-info p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .qrcode-box {
      text-align: center;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px;
      box-shadow: var(--shadow-sm);
    }

    .qrcode-box img {
      max-width: 190px;
      height: auto;
      margin: 0 auto 16px;
      display: block;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    /* 友情链接 */
    .friend-links-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 36px 0;
    }

    .friend-links-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .friend-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friend-links-wrap a {
      color: var(--text-muted);
      text-decoration: none;
      font-size: 0.9rem;
      transition: var(--transition);
    }

    .friend-links-wrap a:hover {
      color: var(--primary);
    }

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

    .footer-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 30px;
      border-bottom: 1px solid #1e293b;
    }

    .footer-brand h3 {
      font-size: 1.4rem;
      color: #ffffff;
      font-weight: 800;
      margin-bottom: 6px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: #64748b;
    }

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    .footer-bottom a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-bottom a:hover {
      color: #ffffff;
    }

    /* 浮动工具栏 */
    .floating-tools {
      position: fixed;
      right: 24px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      z-index: 999;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      text-decoration: none;
      font-size: 1.2rem;
      cursor: pointer;
      transition: var(--transition);
    }

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

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .process-timeline {
        grid-template-columns: repeat(3, 1fr);
      }
      .hero-highlights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .banners-strip {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
        gap: 0; /* 严格满足指令 */
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 16px;
        width: 100%;
      }
      .grid-3, .grid-2, .review-grid, .gallery-grid, .contact-grid {
        grid-template-columns: 1fr;
      }
      .process-timeline {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .hero-h1 {
        font-size: 2rem;
      }
      .hero-subhead {
        font-size: 1.05rem;
      }
      .agency-banner {
        padding: 28px;
        text-align: center;
        justify-content: center;
      }
      .score-left {
        text-align: center;
        width: 100%;
      }
      .score-badge-circle {
        margin: 0 auto;
      }
      .review-score-banner {
        justify-content: center;
      }
    }