:root {
      --primary: #0052d9;
      --primary-hover: #003cab;
      --primary-light: #e8f3ff;
      --secondary: #00a8ff;
      --accent: #ff6b00;
      --dark-text: #1d2129;
      --sub-text: #4e5969;
      --muted-text: #86909c;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --border-color: #e5e6eb;
      --card-shadow: 0 4px 20px rgba(0, 82, 217, 0.08);
      --card-shadow-hover: 0 10px 30px rgba(0, 82, 217, 0.15);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    }

    * {
      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", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--dark-text);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      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(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    }

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

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

    .brand-box .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

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

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

    .nav-links a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 15px;
      color: var(--dark-text);
      font-weight: 500;
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: var(--primary-light);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #fff !important;
      box-shadow: 0 4px 12px rgba(0, 82, 217, 0.25);
    }

    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 6px 16px rgba(0, 82, 217, 0.35);
      transform: translateY(-1px);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary) !important;
      background-color: transparent;
    }

    .btn-outline:hover {
      background-color: var(--primary-light);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark-text);
      cursor: pointer;
      padding: 6px;
    }

    /* 区域通用标题 */
    .section-padding {
      padding: 80px 0;
    }

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

    .section-tag {
      display: inline-block;
      padding: 4px 12px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--dark-text);
      line-height: 1.3;
      margin-bottom: 16px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--sub-text);
      line-height: 1.6;
    }

    /* 首屏 Hero 区域 (无图片) */
    .hero-section {
      position: relative;
      background: linear-gradient(135deg, #f0f7ff 0%, #e6efff 50%, #f7faff 100%);
      padding: 100px 0 80px 0;
      border-bottom: 1px solid #d9e6f7;
      overflow: hidden;
    }

    .hero-decor-1, .hero-decor-2 {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-decor-1 {
      width: 400px;
      height: 400px;
      background: rgba(0, 82, 217, 0.12);
      top: -100px;
      right: 5%;
    }

    .hero-decor-2 {
      width: 350px;
      height: 350px;
      background: rgba(0, 168, 255, 0.15);
      bottom: -80px;
      left: 10%;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #c9ddfc;
      border-radius: 30px;
      font-size: 14px;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: 0 2px 8px rgba(0, 82, 217, 0.06);
    }

    .hero-title {
      font-size: 42px;
      line-height: 1.25;
      font-weight: 800;
      color: #0b1a30;
      margin-bottom: 20px;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--sub-text);
      margin-bottom: 36px;
      line-height: 1.6;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      background: #ffffff;
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      text-align: left;
    }

    .metric-item {
      padding: 0 16px;
      border-right: 1px solid var(--border-color);
    }

    .metric-item:last-child {
      border-right: none;
    }

    .metric-num {
      font-size: 32px;
      font-weight: 700;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 14px;
      color: var(--sub-text);
      font-weight: 500;
    }

    /* 关于我们 / 平台介绍 */
    .about-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--card-shadow);
      margin-bottom: 40px;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-text h3 {
      font-size: 26px;
      color: var(--dark-text);
      margin-bottom: 16px;
    }

    .about-text p {
      font-size: 15px;
      color: var(--sub-text);
      margin-bottom: 14px;
    }

    .features-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .feature-item {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      color: var(--dark-text);
      font-weight: 500;
    }

    .feature-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--primary);
      margin-top: 8px;
      flex-shrink: 0;
    }

    .about-media-box {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0,0,0,0.04);
    }

    .about-media-box img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 服务与能力网格 (多卡片展示) */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: #b3d1ff;
    }

    .service-tag {
      font-size: 12px;
      color: var(--primary);
      background: var(--primary-light);
      padding: 2px 8px;
      border-radius: 4px;
      align-self: flex-start;
      margin-bottom: 14px;
      font-weight: 600;
    }

    .service-card h4 {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 14px;
      color: var(--sub-text);
      line-height: 1.6;
      flex-grow: 1;
    }

    /* 模型矩阵徽章 */
    .models-section {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .models-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      max-width: 1050px;
      margin: 0 auto;
    }

    .model-chip {
      background: var(--bg-main);
      border: 1px solid var(--border-color);
      padding: 8px 18px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 500;
      color: var(--dark-text);
      transition: var(--transition);
    }

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

    /* 行业方案与标准流程 */
    .solution-tabs-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .solution-item {
      background: var(--bg-white);
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      transition: var(--transition);
    }

    .solution-item:hover {
      border-color: var(--primary);
    }

    .solution-item h4 {
      font-size: 17px;
      margin-bottom: 10px;
      color: var(--dark-text);
    }

    .solution-item p {
      font-size: 13px;
      color: var(--sub-text);
      line-height: 1.5;
    }

    .process-flow {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
      position: relative;
      margin-top: 40px;
    }

    .process-step {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 24px 16px;
      border-radius: var(--radius-md);
      text-align: center;
      position: relative;
      box-shadow: var(--card-shadow);
    }

    .step-badge {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #fff;
      font-weight: 700;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 12px;
      font-size: 16px;
    }

    .process-step h5 {
      font-size: 16px;
      margin-bottom: 8px;
      color: var(--dark-text);
    }

    .process-step p {
      font-size: 12px;
      color: var(--sub-text);
    }

    /* 案例中心展示 */
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

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

    .case-img-wrap {
      width: 100%;
      height: 260px;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }

    .case-info {
      padding: 24px;
    }

    .case-info h4 {
      font-size: 19px;
      margin-bottom: 10px;
      color: var(--dark-text);
    }

    .case-info p {
      font-size: 14px;
      color: var(--sub-text);
      margin-bottom: 16px;
    }

    /* 对比评测表格与卡片 */
    .rating-highlight {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 2px solid #b3d1ff;
      padding: 30px;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: var(--card-shadow);
      flex-wrap: wrap;
      gap: 20px;
    }

    .rating-title-group h3 {
      font-size: 24px;
      color: var(--primary);
      margin-bottom: 6px;
    }

    .rating-title-group p {
      font-size: 14px;
      color: var(--sub-text);
    }

    .score-badge-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .stars-box {
      color: #ff9800;
      font-size: 22px;
      font-weight: 700;
    }

    .score-value {
      font-size: 38px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }

    .score-total {
      font-size: 16px;
      color: var(--muted-text);
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .compare-table th, .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .compare-table th {
      background: #f1f6ff;
      color: var(--dark-text);
      font-weight: 600;
    }

    .compare-table tr:hover {
      background-color: #fcfdfe;
    }

    .table-feature {
      font-weight: 600;
      color: var(--dark-text);
      width: 25%;
    }

    .table-highlight {
      background: #f4f8ff;
      color: var(--primary);
      font-weight: 600;
      width: 45%;
    }

    .table-other {
      color: var(--muted-text);
      width: 30%;
    }

    /* Token 比价与需求匹配 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 50px;
    }

    .token-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--card-shadow);
    }

    .token-tier {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark-text);
      margin-bottom: 8px;
    }

    .token-price {
      font-size: 32px;
      font-weight: 800;
      color: var(--primary);
      margin: 16px 0;
    }

    .token-features-list {
      text-align: left;
      margin-bottom: 20px;
    }

    .token-features-list li {
      font-size: 13px;
      color: var(--sub-text);
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 表单与需求匹配 */
    .form-wrapper {
      background: var(--bg-white);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--card-shadow);
      max-width: 800px;
      margin: 0 auto;
    }

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

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

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--dark-text);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark-text);
      background-color: #fbfdff;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.12);
      background-color: #fff;
    }

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

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

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

    .review-text {
      font-size: 14px;
      color: var(--sub-text);
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }

    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
      flex-shrink: 0;
    }

    .author-info h5 {
      font-size: 15px;
      font-weight: 600;
      color: var(--dark-text);
    }

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

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

    .faq-item {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      box-shadow: var(--card-shadow);
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--dark-text);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
      background: #fbfdff;
    }

    .faq-icon {
      font-size: 18px;
      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 0.3s cubic-bezier(0, 1, 0, 1);
      padding: 0 24px;
      color: var(--sub-text);
      font-size: 14px;
      line-height: 1.6;
    }

    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px 24px;
      transition: max-height 0.3s ease-in-out;
    }

    /* 行业资讯与最新文章 */
    .news-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 30px;
    }

    .articles-block {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      box-shadow: var(--card-shadow);
    }

    .articles-block h4 {
      font-size: 18px;
      margin-bottom: 20px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-color);
    }

    .article-links-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-links-list li a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 14px;
      color: var(--dark-text);
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
    }

    .article-links-list li a:hover {
      color: var(--primary);
      padding-left: 6px;
    }

    .wiki-card {
      background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--card-shadow);
    }

    .wiki-card h4 {
      font-size: 18px;
      margin-bottom: 16px;
      color: var(--primary);
    }

    .wiki-card p {
      font-size: 14px;
      color: var(--sub-text);
      line-height: 1.6;
      margin-bottom: 14px;
    }

    /* 加盟代理与联系我们 */
    .contact-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .contact-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      text-align: center;
      box-shadow: var(--card-shadow);
    }

    .qr-container {
      width: 140px;
      height: 140px;
      margin: 16px auto;
      border: 1px solid var(--border-color);
      padding: 6px;
      border-radius: var(--radius-sm);
      background: #fff;
    }

    .qr-container img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

    /* 友情链接与页脚 */
    .site-footer {
      background-color: #0d1a2d;
      color: #b0c4de;
      padding: 60px 0 30px 0;
      font-size: 14px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      margin-bottom: 14px;
    }

    .footer-brand p {
      line-height: 1.6;
      font-size: 13px;
      color: #8da4c4;
      margin-bottom: 16px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 16px;
      margin-bottom: 16px;
      font-weight: 600;
    }

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

    .footer-col a {
      color: #8da4c4;
      font-size: 13px;
    }

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

    .friend-links-wrap {
      padding: 24px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-wrap span {
      color: #ffffff;
      font-weight: 600;
      font-size: 13px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .friend-links-list a {
      color: #8da4c4;
      font-size: 13px;
    }

    .friend-links-list a:hover {
      color: #38bdf8;
    }

    .footer-bottom {
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #627d98;
    }

    /* 浮动客服入口 */
    .float-service-panel {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(0, 82, 217, 0.3);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      position: relative;
    }

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

    .float-btn-qr {
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #fff;
      padding: 10px;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 16px rgba(0,0,0,0.15);
      display: none;
      width: 140px;
      text-align: center;
      border: 1px solid var(--border-color);
    }

    .float-btn-qr img {
      width: 120px;
      height: 120px;
      display: block;
    }

    .float-btn-qr span {
      font-size: 12px;
      color: var(--dark-text);
      display: block;
      margin-top: 4px;
    }

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

    /* 移动端响应式处理 */
    @media (max-width: 992px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
        border-bottom: 1px solid var(--border-color);
      }

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

      .nav-links a {
        width: 100%;
        padding: 10px 14px;
      }

      .mobile-menu-toggle {
        display: block;
      }

      .hero-title {
        font-size: 32px;
      }

      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }

      .metric-item:nth-child(2) {
        border-right: none;
      }

      .metric-item:nth-child(n+3) {
        margin-top: 16px;
      }

      .about-grid, .cases-grid, .news-grid {
        grid-template-columns: 1fr;
      }

      .services-grid, .reviews-grid, .token-grid, .contact-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .solution-tabs-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .process-flow {
        grid-template-columns: repeat(2, 1fr);
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 640px) {
      .section-padding {
        padding: 50px 0;
      }

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

      .hero-metrics {
        grid-template-columns: 1fr;
        padding: 20px;
      }

      .metric-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 10px 0;
      }

      .metric-item:last-child {
        border-bottom: none;
      }

      .services-grid, .reviews-grid, .token-grid, .contact-grid, .solution-tabs-grid {
        grid-template-columns: 1fr;
      }

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

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

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

      .rating-highlight {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-top {
        grid-template-columns: 1fr;
      }
    }