:root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --text-main: #0f172a;
      --text-muted: #475569;
      --brand-blue: #0052ff;
      --brand-blue-hover: #0041cc;
      --accent-coral: #ff4757;
      --accent-yellow: #ffd32a;
      --accent-cyan: #0fbcf9;
      --accent-green: #05c46b;
      --accent-purple: #8854d0;
      --border-dark: #0f172a;
      --border-light: #e2e8f0;
      --shadow-solid: 4px 4px 0px #0f172a;
      --shadow-solid-lg: 6px 6px 0px #0f172a;
      --radius: 12px;
      --container-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease;
    }

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部导航 */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: #ffffff;
      border-bottom: 2px solid var(--border-dark);
    }

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

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

    .brand-logo-wrap {
      width: 44px;
      height: 44px;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .brand-title {
      font-size: 1.35rem;
      font-weight: 900;
      letter-spacing: -0.5px;
      color: var(--text-main);
    }

    .brand-title span {
      color: var(--brand-blue);
    }

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

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      background: #f1f5f9;
      color: var(--brand-blue);
    }

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

    .btn-top-portal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      font-size: 0.95rem;
      font-weight: 700;
      color: #ffffff;
      background-color: var(--brand-blue);
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      box-shadow: 2px 2px 0px var(--border-dark);
      cursor: pointer;
    }

    .btn-top-portal:hover {
      transform: translate(-1px, -1px);
      box-shadow: 4px 4px 0px var(--border-dark);
      background-color: var(--brand-blue-hover);
    }

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

    .mobile-menu-toggle span {
      width: 24px;
      height: 3px;
      background-color: var(--text-main);
      border-radius: 2px;
    }

    /* 撞色风格通用模块标题 */
    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }

    .badge-pill {
      display: inline-block;
      padding: 6px 14px;
      font-size: 0.85rem;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      border: 2px solid var(--border-dark);
      border-radius: 999px;
      margin-bottom: 12px;
      box-shadow: 2px 2px 0px var(--border-dark);
    }

    .badge-yellow { background-color: var(--accent-yellow); color: var(--text-main); }
    .badge-coral { background-color: var(--accent-coral); color: #ffffff; }
    .badge-cyan { background-color: var(--accent-cyan); color: var(--text-main); }
    .badge-green { background-color: var(--accent-green); color: #ffffff; }
    .badge-purple { background-color: var(--accent-purple); color: #ffffff; }

    .section-title {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* 首屏 HERO 区域 - 严格无图，纯CSS几何高饱撞色 */
    .hero-section {
      background: #ffffff;
      border-bottom: 2px solid var(--border-dark);
      padding: 70px 0 80px;
      position: relative;
    }

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

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--accent-yellow);
      border: 2px solid var(--border-dark);
      padding: 8px 16px;
      font-weight: 800;
      font-size: 0.95rem;
      border-radius: 8px;
      box-shadow: 3px 3px 0 var(--border-dark);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1.25;
      color: var(--text-main);
      margin-bottom: 24px;
    }

    .hero-title .highlight-blue {
      color: var(--brand-blue);
      text-decoration: underline;
      text-underline-offset: 8px;
      text-decoration-color: var(--accent-coral);
    }

    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-btn-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 16px 36px;
      background-color: var(--accent-coral);
      color: #ffffff;
      font-size: 1.15rem;
      font-weight: 900;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      box-shadow: 4px 4px 0 var(--border-dark);
      cursor: pointer;
    }

    .btn-hero-primary:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--border-dark);
      background-color: #eb3b4a;
    }

    .btn-hero-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 16px 32px;
      background-color: #ffffff;
      color: var(--text-main);
      font-size: 1.15rem;
      font-weight: 800;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      box-shadow: 4px 4px 0 var(--border-dark);
    }

    .btn-hero-secondary:hover {
      transform: translate(-2px, -2px);
      box-shadow: 6px 6px 0 var(--border-dark);
      background-color: #f8fafc;
    }

    /* 纯代码数据指标卡片 */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .stat-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 12px;
      padding: 20px 16px;
      box-shadow: 4px 4px 0 var(--border-dark);
      text-align: center;
      position: relative;
    }

    .stat-card:nth-child(1) { border-top: 8px solid var(--brand-blue); }
    .stat-card:nth-child(2) { border-top: 8px solid var(--accent-coral); }
    .stat-card:nth-child(3) { border-top: 8px solid var(--accent-green); }
    .stat-card:nth-child(4) { border-top: 8px solid var(--accent-yellow); }

    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-muted);
    }

    /* 公共模块间距 */
    section {
      padding: 70px 0;
    }

    /* 聚合模型展区 */
    .models-section {
      background-color: #f1f5f9;
      border-bottom: 2px solid var(--border-dark);
    }

    .model-tags-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-chip {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      padding: 10px 20px;
      border-radius: 10px;
      font-weight: 800;
      font-size: 1rem;
      box-shadow: 2px 2px 0 var(--border-dark);
      transition: all 0.2s ease;
    }

    .model-chip:hover {
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0 var(--brand-blue);
      background-color: #fff9db;
    }

    /* 平台核心功能与场景展示 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-box {
      background: var(--bg-card);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: all 0.2s ease;
    }

    .service-box:hover {
      transform: translate(-3px, -3px);
      box-shadow: var(--shadow-solid-lg);
    }

    .service-box-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .service-box-title {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
    }

    .service-box-tag {
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 8px;
      border-radius: 6px;
      border: 1.5px solid var(--border-dark);
    }

    .service-box-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    .service-box-feature {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--brand-blue);
      background: #eff6ff;
      padding: 8px 12px;
      border-radius: 6px;
      border-left: 4px solid var(--brand-blue);
    }

    /* 图文结合案例与视觉中心 */
    .media-showcase-section {
      background-color: #ffffff;
      border-top: 2px solid var(--border-dark);
      border-bottom: 2px solid var(--border-dark);
    }

    .media-grid-2col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: center;
      margin-bottom: 40px;
    }

    .media-card-img {
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-solid-lg);
      background: #f1f5f9;
      line-height: 0;
    }

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

    .media-card-content {
      padding: 10px;
    }

    .media-card-content h3 {
      font-size: 1.8rem;
      font-weight: 900;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .media-card-content p {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      line-height: 1.7;
    }

    .feature-checklist {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .feature-checklist li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .checklist-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: var(--accent-green);
      color: #ffffff;
      font-size: 0.8rem;
      font-weight: 900;
      border: 1.5px solid var(--border-dark);
    }

    /* 对比评测表格板块 */
    .compare-section {
      background-color: #f8fafc;
    }

    .rating-banner {
      background: var(--accent-yellow);
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      margin-bottom: 36px;
    }

    .rating-banner-text h3 {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .rating-banner-text p {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .rating-score-box {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      padding: 12px 24px;
      border-radius: 10px;
      box-shadow: 2px 2px 0 var(--border-dark);
    }

    .score-stars {
      color: #ff9f43;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .score-digit {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--accent-coral);
    }

    .table-container {
      overflow-x: auto;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-solid-lg);
      background: #ffffff;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .compare-table th, .compare-table td {
      padding: 18px 20px;
      border-bottom: 1px solid var(--border-light);
      font-size: 0.95rem;
    }

    .compare-table th {
      background: #f1f5f9;
      font-weight: 900;
      color: var(--text-main);
      border-bottom: 2px solid var(--border-dark);
    }

    .compare-table td.col-brand {
      background-color: #fff9e6;
      font-weight: 800;
      color: var(--brand-blue);
      border-left: 2px solid var(--border-dark);
      border-right: 2px solid var(--border-dark);
    }

    .compare-table th.col-brand {
      background-color: #ffeaa7;
      color: var(--text-main);
      border-left: 2px solid var(--border-dark);
      border-right: 2px solid var(--border-dark);
      font-size: 1.05rem;
    }

    /* 标准制作流程与时间线 */
    .flow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .flow-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px 20px;
      box-shadow: var(--shadow-solid);
      position: relative;
    }

    .flow-num {
      width: 36px;
      height: 36px;
      background: var(--brand-blue);
      color: #ffffff;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      border: 2px solid var(--border-dark);
      margin-bottom: 16px;
    }

    .flow-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .flow-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 客户评价板块 */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-text {
      font-size: 0.95rem;
      color: var(--text-main);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: normal;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }

    .reviewer-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e2e8f0;
      border: 2px solid var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.1rem;
      color: var(--text-main);
    }

    .reviewer-info h4 {
      font-size: 0.95rem;
      font-weight: 800;
    }

    .reviewer-info span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 展开折叠面板 */
    .faq-container {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      box-shadow: var(--shadow-solid);
      overflow: hidden;
    }

    .faq-header {
      width: 100%;
      text-align: left;
      padding: 18px 24px;
      font-size: 1.05rem;
      font-weight: 800;
      background: transparent;
      border: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      color: var(--text-main);
    }

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

    .faq-icon {
      font-size: 1.3rem;
      font-weight: 900;
      transition: transform 0.2s ease;
    }

    .faq-body {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: none;
      border-top: 1px dashed var(--border-light);
      padding-top: 16px;
    }

    .faq-item.active .faq-body {
      display: block;
    }

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

    /* 需求匹配与项目接入表单 */
    .form-section {
      background: #ffffff;
      border-top: 2px solid var(--border-dark);
      border-bottom: 2px solid var(--border-dark);
    }

    .form-wrapper {
      max-width: 760px;
      margin: 0 auto;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-solid-lg);
    }

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

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

    .form-label {
      display: block;
      font-weight: 800;
      font-size: 0.95rem;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      font-size: 0.95rem;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      outline: none;
      background: #f8fafc;
      font-family: inherit;
    }

    .form-control:focus {
      background: #ffffff;
      border-color: var(--brand-blue);
      box-shadow: 0 0 0 2px rgba(0, 82, 255, 0.2);
    }

    textarea.form-control {
      min-height: 120px;
      resize: vertical;
    }

    .btn-submit {
      width: 100%;
      padding: 16px;
      background: var(--brand-blue);
      color: #ffffff;
      font-size: 1.1rem;
      font-weight: 800;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      box-shadow: 4px 4px 0 var(--border-dark);
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-submit:hover {
      background: var(--brand-blue-hover);
      transform: translate(-1px, -1px);
      box-shadow: 5px 5px 0 var(--border-dark);
    }

    /* 资讯与百科文章 */
    .articles-section {
      background-color: #f8fafc;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .article-box {
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-solid);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-title {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 12px;
      line-height: 1.4;
    }

    .article-title a:hover {
      color: var(--brand-blue);
    }

    .article-summary {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .article-link {
      font-weight: 800;
      font-size: 0.9rem;
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 底部收尾与页脚 */
    footer.site-footer {
      background: #ffffff;
      border-top: 2px solid var(--border-dark);
      padding: 60px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 14px;
      line-height: 1.7;
    }

    .footer-heading {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links-list li a {
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .footer-links-list li a:hover {
      color: var(--brand-blue);
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 0.9rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    .qr-container {
      width: 110px;
      height: 110px;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      padding: 4px;
      background: #ffffff;
      box-shadow: 2px 2px 0 var(--border-dark);
      margin-top: 10px;
    }

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

    .friend-links-bar {
      border-top: 1px solid var(--border-light);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .friend-links-bar span {
      font-weight: 800;
      color: var(--text-main);
    }

    .friend-links-bar a {
      color: var(--text-muted);
      font-weight: 600;
    }

    .friend-links-bar a:hover {
      color: var(--brand-blue);
    }

    .footer-bottom-copy {
      border-top: 1px solid var(--border-light);
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 600;
    }

    /* 浮动客服挂件 */
    .float-service-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      box-shadow: 3px 3px 0 var(--border-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-weight: 900;
      font-size: 1.1rem;
      transition: all 0.2s ease;
      position: relative;
    }

    .float-btn:hover {
      transform: translate(-2px, -2px);
      box-shadow: 4px 4px 0 var(--brand-blue);
    }

    .float-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      width: 140px;
      padding: 10px;
      background: #ffffff;
      border: 2px solid var(--border-dark);
      border-radius: 8px;
      box-shadow: var(--shadow-solid);
      display: none;
      text-align: center;
    }

    .float-qr-popup img {
      width: 100%;
      height: auto;
      display: block;
    }

    .float-qr-popup p {
      font-size: 0.75rem;
      font-weight: 800;
      margin-top: 6px;
      color: var(--text-main);
    }

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

    /* 响应式媒体查询 */
    @media (max-width: 992px) {
      .services-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-grid, .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .media-grid-2col {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 2px solid var(--border-dark);
        flex-direction: column;
        padding: 16px 20px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-light);
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .section-title {
        font-size: 1.7rem;
      }
      .services-grid, .reviews-grid, .articles-grid, .hero-stats-grid, .flow-grid {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }