:root {
      --primary: #1d4ed8;
      --primary-hover: #1e40af;
      --accent: #0284c7;
      --accent-glow: #06b6d4;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-soft: #f1f5f9;
      --text-main: #0f172a;
      --text-sub: #334155;
      --text-muted: #64748b;
      --border-color: #e2e8f0;
      --success: #059669;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .logo-box {
      width: 140px;
      max-height: 44px;
      display: flex;
      align-items: center;
    }
    .ai-page-logo {
      max-height: 40px;
      width: auto;
      object-fit: contain;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }
    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      transition: var(--transition);
      border-radius: 6px;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background: rgba(29, 78, 216, 0.06);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 8px;
      font-size: 0.95rem;
      font-weight: 600;
      cursor: pointer;
      transition: var(--transition);
      border: 1px solid transparent;
      text-align: center;
    }
    .btn-primary {
      background: var(--primary);
      color: #ffffff;
      box-shadow: 0 2px 8px rgba(29, 78, 216, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
      box-shadow: 0 4px 14px rgba(29, 78, 216, 0.35);
      color: #ffffff;
    }
    .btn-outline {
      border-color: var(--border-color);
      background: #ffffff;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(29, 78, 216, 0.04);
    }
    .btn-highlight {
      background: linear-gradient(135deg, #0284c7, #2563eb);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
    }
    .btn-highlight:hover {
      background: linear-gradient(135deg, #0369a1, #1d4ed8);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(2, 132, 199, 0.4);
      color: #ffffff;
    }
    .btn-sm {
      padding: 6px 14px;
      font-size: 0.85rem;
    }
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 6px;
    }

    .hero-section {
      background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
      padding: 70px 0 60px;
      border-bottom: 1px solid var(--border-color);
      position: relative;
      overflow: hidden;
    }
    .hero-decor-grid {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-size: 32px 32px;
      background-image: linear-gradient(to right, rgba(29, 78, 216, 0.04) 1px, transparent 1px),
                        linear-gradient(to bottom, rgba(29, 78, 216, 0.04) 1px, transparent 1px);
      pointer-events: none;
    }
    .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;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      color: var(--primary);
      padding: 6px 16px;
      border-radius: 9999px;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 24px;
      box-shadow: 0 2px 6px rgba(37, 99, 235, 0.1);
    }
    .hero-badge span {
      width: 8px;
      height: 8px;
      background: #10b981;
      border-radius: 50%;
      display: inline-block;
    }
    .hero-title {
      font-size: 2.5rem;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -0.02em;
    }
    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-sub);
      margin-bottom: 32px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .hero-official-link {
      font-size: 1.1rem;
      padding: 14px 34px;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .stat-item {
      text-align: center;
      border-right: 1px solid var(--border-color);
    }
    .stat-item:last-child {
      border-right: none;
    }
    .stat-value {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.875rem;
      color: var(--text-muted);
      margin-top: 4px;
    }

    section {
      padding: 60px 0;
      position: relative;
    }
    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 40px;
    }
    .section-eyebrow {
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 1.85rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    .card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
      border-color: #cbd5e1;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .about-lead {
      font-size: 1.05rem;
      color: var(--text-sub);
      margin-bottom: 20px;
      line-height: 1.75;
    }
    .about-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }
    .about-tag {
      background: #eff6ff;
      color: var(--primary);
      border: 1px solid #dbeafe;
      font-size: 0.85rem;
      padding: 6px 14px;
      border-radius: 9999px;
      font-weight: 500;
    }
    .about-metrics {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      text-align: left;
    }
    .metric-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .service-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      transition: var(--transition);
    }
    .service-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }
    .service-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: rgba(29, 78, 216, 0.08);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      margin-bottom: 16px;
      font-weight: 700;
    }
    .service-name {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .service-detail {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .models-cloud {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      margin-top: 30px;
      text-align: center;
    }
    .models-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .models-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }
    .model-chip {
      background: var(--bg-soft);
      color: var(--text-sub);
      border: 1px solid var(--border-color);
      padding: 5px 12px;
      border-radius: 6px;
      font-size: 0.8rem;
      font-weight: 500;
      transition: var(--transition);
    }
    .model-chip:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    .workflow-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .workflow-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      position: relative;
    }
    .workflow-step-num {
      font-size: 1.5rem;
      font-weight: 800;
      color: #93c5fd;
      margin-bottom: 8px;
    }
    .workflow-heading {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .workflow-text {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .solution-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px;
    }
    .solution-item h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .solution-item p {
      font-size: 0.875rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .network-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 20px;
      text-align: center;
    }
    .network-item strong {
      display: block;
      font-size: 1.05rem;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .network-item span {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .cases-gallery {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }
    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      overflow: hidden;
    }
    .case-img-wrap {
      width: 100%;
      height: 240px;
      overflow: hidden;
      background: var(--bg-soft);
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.03);
    }
    .case-body {
      padding: 20px;
    }
    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .case-desc {
      font-size: 0.88rem;
      color: var(--text-sub);
      line-height: 1.55;
    }

    .eval-box {
      background: #ffffff;
      border: 2px solid #bfdbfe;
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-md);
    }
    .eval-header-summary {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--border-color);
      margin-bottom: 24px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .score-badge {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .score-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1;
    }
    .score-stars {
      color: #f59e0b;
      font-size: 1.4rem;
      margin-bottom: 4px;
    }
    .score-caption {
      font-size: 0.9rem;
      color: var(--text-muted);
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .eval-table th, .eval-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }
    .eval-table th {
      background: var(--bg-soft);
      font-weight: 700;
      color: var(--text-main);
    }
    .eval-table tr:hover td {
      background: rgba(239, 246, 255, 0.4);
    }
    .eval-table .highlight-col {
      font-weight: 700;
      color: var(--primary);
      background: rgba(239, 246, 255, 0.5);
    }

    .matching-form-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
    }
    .form-textarea {
      resize: vertical;
      min-height: 100px;
    }

    .pricing-cards {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .price-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px 24px;
      text-align: center;
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .price-card.featured {
      border-color: var(--primary);
      box-shadow: 0 8px 24px rgba(29, 78, 216, 0.12);
      transform: translateY(-4px);
    }
    .price-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      padding: 4px 14px;
      border-radius: 9999px;
      font-size: 0.75rem;
      font-weight: 700;
    }
    .price-title {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .price-value {
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .price-value span {
      font-size: 0.9rem;
      font-weight: 400;
      color: var(--text-muted);
    }
    .price-features {
      list-style: none;
      text-align: left;
      margin: 20px 0;
      flex-grow: 1;
    }
    .price-features li {
      font-size: 0.88rem;
      color: var(--text-sub);
      padding: 6px 0;
      border-bottom: 1px dashed var(--border-color);
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 22px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
      font-style: italic;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .reviewer-avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: #dbeafe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .reviewer-name {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .reviewer-role {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: var(--transition);
    }
    .faq-question {
      padding: 18px 20px;
      font-weight: 600;
      font-size: 1rem;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-question:hover {
      background: rgba(239, 246, 255, 0.5);
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #ffffff;
      padding: 0 20px;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px 20px;
    }
    .faq-answer p {
      font-size: 0.92rem;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .wiki-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .wiki-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 18px;
    }
    .wiki-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .wiki-text {
      font-size: 0.85rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    .news-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
    }
    .news-panel {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
    }
    .news-list {
      list-style: none;
    }
    .news-list li {
      padding: 10px 0;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.92rem;
    }
    .news-list li:last-child {
      border-bottom: none;
    }
    .news-list li a {
      color: var(--text-sub);
      transition: var(--transition);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      max-width: 80%;
    }
    .news-list li a:hover {
      color: var(--primary);
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .partner-banner {
      background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 100%);
      color: #ffffff;
      border-radius: var(--radius);
      padding: 40px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 24px;
    }
    .partner-banner h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 10px;
      color: #ffffff;
    }
    .partner-banner p {
      font-size: 1rem;
      color: #cbd5e1;
      max-width: 600px;
      line-height: 1.6;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 32px;
      align-items: start;
    }
    .contact-info-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
    }
    .contact-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 18px;
    }
    .contact-icon {
      font-size: 1.1rem;
      color: var(--primary);
    }
    .contact-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .contact-val {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .qr-container {
      margin-top: 20px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .qr-box {
      width: 110px;
      height: 110px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 4px;
      background: #ffffff;
    }
    .qr-box img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }
    .qr-desc h4 {
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 4px;
    }
    .qr-desc p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 48px 0 24px;
      border-top: 1px solid #1e293b;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1.5fr;
      gap: 32px;
      padding-bottom: 36px;
      border-bottom: 1px solid #1e293b;
    }
    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.2rem;
      margin-bottom: 12px;
    }
    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.6;
      color: #94a3b8;
    }
    .footer-links-title {
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .footer-friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .footer-friend-links a {
      color: #94a3b8;
      background: #1e293b;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.82rem;
      transition: var(--transition);
    }
    .footer-friend-links a:hover {
      color: #ffffff;
      background: var(--primary);
    }
    .footer-bottom {
      text-align: center;
      padding-top: 24px;
      font-size: 0.82rem;
      color: #64748b;
    }

    .floating-tools {
      position: fixed;
      right: 20px;
      bottom: 28px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-main);
      cursor: pointer;
      transition: var(--transition);
      font-size: 1.1rem;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      transform: translateY(-2px);
    }
    .back-to-top {
      opacity: 0;
      pointer-events: none;
    }
    .back-to-top.show {
      opacity: 1;
      pointer-events: auto;
    }

    @media (max-width: 992px) {
      .hero-title {
        font-size: 2rem;
      }
      .about-grid,
      .contact-grid,
      .matching-form-wrap,
      .news-wrapper,
      .footer-top {
        grid-template-columns: 1fr;
      }
      .services-grid,
      .solutions-grid,
      .pricing-cards,
      .reviews-grid,
      .wiki-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-grid,
      .network-grid,
      .hero-stats {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item:nth-child(2) {
        border-right: none;
      }
      .stat-item {
        margin-bottom: 12px;
      }
      .nav-links {
        display: none;
      }
      .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 20px;
        box-shadow: var(--shadow-md);
      }
      .mobile-menu-toggle {
        display: block;
      }
    }
    @media (max-width: 640px) {
      .hero-title {
        font-size: 1.55rem;
      }
      .services-grid,
      .solutions-grid,
      .pricing-cards,
      .reviews-grid,
      .cases-gallery,
      .workflow-grid,
      .network-grid,
      .wiki-grid,
      .hero-stats {
        grid-template-columns: 1fr;
      }
      .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 12px;
      }
      .stat-item:last-child {
        border-bottom: none;
      }
      .partner-banner {
        padding: 24px;
      }
    }