:root {
      --primary: #0052d9;
      --primary-hover: #003cab;
      --accent: #00a870;
      --accent-warm: #ed7b2f;
      --bg-page: #f7f9fc;
      --bg-card: #ffffff;
      --text-main: #1f2329;
      --text-regular: #4e5969;
      --text-muted: #86909c;
      --border-color: #e5e6eb;
      --border-focus: #0052d9;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px rgba(0, 82, 217, 0.08);
      --shadow-lg: 0 16px 36px rgba(0, 82, 217, 0.12);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    ul, ol {
      list-style: none;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

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

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

    .ai-page-logo {
      height: 38px;
      width: auto;
      object-fit: contain;
      display: block;
    }

    .brand-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }

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

    .nav-links a {
      display: inline-block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-regular);
      border-radius: var(--radius-sm);
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
      background: rgba(0, 82, 217, 0.05);
    }

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

    .btn-solid-primary {
      background: var(--primary);
      color: #ffffff !important;
      padding: 9px 20px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      border: 1px solid var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      box-shadow: 0 4px 14px rgba(0, 82, 217, 0.24);
      cursor: pointer;
    }

    .btn-solid-primary:hover {
      background: var(--primary-hover);
      border-color: var(--primary-hover);
      box-shadow: 0 6px 20px rgba(0, 82, 217, 0.32);
      transform: translateY(-1px);
    }

    .btn-outline-primary {
      background: transparent;
      color: var(--primary);
      border: 1px solid var(--primary);
      padding: 8px 18px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.95rem;
      display: inline-flex;
      align-items: center;
      cursor: pointer;
    }

    .btn-outline-primary:hover {
      background: rgba(0, 82, 217, 0.06);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 6px 10px;
      font-size: 1.25rem;
      cursor: pointer;
      color: var(--text-main);
    }

    .section-wrap {
      padding: 72px 0;
      position: relative;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 44px auto;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.8rem;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: var(--primary);
      background: rgba(0, 82, 217, 0.08);
      border-radius: 99px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

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

    .hero-section {
      padding: 90px 0 70px 0;
      background: radial-gradient(circle at 50% 10%, rgba(0, 82, 217, 0.08) 0%, rgba(247, 249, 252, 0) 70%), var(--bg-page);
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .hero-content {
      max-width: 980px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      border: 1px solid rgba(0, 82, 217, 0.2);
      box-shadow: var(--shadow-sm);
      padding: 6px 16px;
      border-radius: 99px;
      font-size: 0.88rem;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 850;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-title span {
      background: linear-gradient(135deg, #0052d9 0%, #00a870 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-sub {
      font-size: 1.2rem;
      color: var(--text-regular);
      max-width: 820px;
      margin: 0 auto 36px auto;
      line-height: 1.7;
    }

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

    .hero-cta-btn {
      font-size: 1.1rem;
      padding: 14px 34px;
      border-radius: var(--radius-md);
      font-weight: 700;
    }

    .hero-metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 36px;
    }

    .metric-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 18px;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 82, 217, 0.3);
    }

    .metric-value {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

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

    .model-badge-belt {
      margin-top: 40px;
      padding: 20px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: center;
      gap: 8px 12px;
    }

    .model-chip {
      font-size: 0.8rem;
      background: var(--bg-page);
      border: 1px solid #eaedf3;
      padding: 4px 10px;
      border-radius: 6px;
      color: var(--text-regular);
      font-weight: 500;
    }

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

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .service-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
      border-color: rgba(0, 82, 217, 0.4);
    }

    .service-card-header {
      margin-bottom: 16px;
    }

    .service-tag {
      font-size: 0.75rem;
      color: var(--primary);
      background: rgba(0, 82, 217, 0.08);
      font-weight: 700;
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 8px;
    }

    .service-card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .service-card-desc {
      font-size: 0.94rem;
      color: var(--text-regular);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .service-features-list {
      margin-bottom: 20px;
    }

    .service-features-list li {
      font-size: 0.88rem;
      color: var(--text-regular);
      padding: 4px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .service-features-list li::before {
      content: "✓";
      color: var(--accent);
      font-weight: bold;
    }

    .card-action-link {
      font-size: 0.9rem;
      color: var(--primary);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    .card-action-link:hover {
      gap: 8px;
    }

    .platform-intro-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .intro-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 36px;
    }

    .intro-item {
      display: flex;
      gap: 16px;
    }

    .intro-icon {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      background: rgba(0, 82, 217, 0.08);
      color: var(--primary);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.25rem;
    }

    .intro-info h3 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .intro-info p {
      font-size: 0.92rem;
      color: var(--text-regular);
      line-height: 1.6;
    }

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

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
      transition: var(--transition);
    }

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

    .step-num {
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
      margin-bottom: 14px;
    }

    .step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-desc {
      font-size: 0.88rem;
      color: var(--text-regular);
      line-height: 1.5;
    }

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

    .case-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .case-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .case-media-wrap {
      width: 100%;
      height: 200px;
      background: #f0f2f5;
      position: relative;
      overflow: hidden;
    }

    .case-media-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-card:hover .case-media-wrap img {
      transform: scale(1.04);
    }

    .case-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .case-header h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .case-header p {
      font-size: 0.9rem;
      color: var(--text-regular);
      line-height: 1.5;
      margin-bottom: 14px;
    }

    .case-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-top: 1px solid #f0f2f5;
      padding-top: 12px;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .eval-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .eval-highlight-strip {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(90deg, #f0f5ff 0%, #e6f9f0 100%);
      border-radius: var(--radius-md);
      padding: 20px 28px;
      margin-bottom: 30px;
      border: 1px solid rgba(0, 82, 217, 0.15);
    }

    .eval-score-box {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-badge {
      font-size: 2.2rem;
      font-weight: 850;
      color: var(--primary);
      line-height: 1;
    }

    .eval-star-group {
      color: #ff9800;
      font-size: 1.25rem;
      letter-spacing: 2px;
    }

    .table-responsive {
      width: 100%;
      overflow-x: auto;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
    }

    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }

    .eval-table th,
    .eval-table td {
      padding: 14px 18px;
      border-bottom: 1px solid var(--border-color);
    }

    .eval-table th {
      background: #f7f9fc;
      font-weight: 700;
      color: var(--text-main);
    }

    .eval-table tr:hover td {
      background: #fafcff;
    }

    .eval-table .col-spec {
      font-weight: 600;
      color: var(--text-main);
      width: 22%;
    }

    .eval-table .col-self {
      font-weight: 600;
      color: var(--primary);
      background: rgba(0, 82, 217, 0.02);
      width: 40%;
    }

    .eval-table .col-other {
      color: var(--text-regular);
      width: 38%;
    }

    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

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

    .review-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
      border-color: rgba(0, 82, 217, 0.3);
    }

    .review-text {
      font-size: 0.92rem;
      color: var(--text-regular);
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f0f2f5;
      padding-top: 14px;
    }

    .reviewer-avatar-ph {
      width: 40px;
      height: 40px;
      background: rgba(0, 82, 217, 0.1);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.95rem;
    }

    .reviewer-name {
      font-size: 0.92rem;
      font-weight: 700;
      color: var(--text-main);
    }

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

    .faq-accordion {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 22px;
      font-weight: 600;
      font-size: 1.02rem;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
    }

    .faq-icon-arrow {
      transition: transform 0.25s ease;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fafbfc;
      font-size: 0.93rem;
      color: var(--text-regular);
      line-height: 1.65;
      padding: 0 22px;
    }

    .faq-item.active {
      border-color: rgba(0, 82, 217, 0.4);
    }

    .faq-item.active .faq-icon-arrow {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-item.active .faq-answer {
      padding: 16px 22px;
      max-height: 300px;
      border-top: 1px solid #f0f2f5;
    }

    .two-column-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .form-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .form-group {
      margin-bottom: 18px;
    }

    .form-label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      color: var(--text-main);
      background: #ffffff;
      outline: none;
      transition: var(--transition);
      font-family: inherit;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.12);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .contact-card-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .contact-info-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-bottom: 24px;
    }

    .contact-info-row {
      display: flex;
      align-items: flex-start;
      gap: 14px;
    }

    .contact-badge {
      padding: 4px 10px;
      background: rgba(0, 82, 217, 0.08);
      color: var(--primary);
      border-radius: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      flex-shrink: 0;
    }

    .contact-val {
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 500;
    }

    .qr-group {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 16px;
      background: var(--bg-page);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .qr-group img {
      width: 100px;
      height: 100px;
      object-fit: cover;
      border-radius: 8px;
      border: 1px solid #e1e4e8;
      display: block;
    }

    .qr-text h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .qr-text p {
      font-size: 0.82rem;
      color: var(--text-regular);
      line-height: 1.4;
    }

    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .article-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
      transform: translateY(-2px);
    }

    .article-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.45;
      margin-bottom: 10px;
    }

    .article-meta {
      font-size: 0.82rem;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
      margin-top: 14px;
    }

    .promo-banner-card {
      margin-top: 36px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .promo-banner-imgs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .promo-banner-imgs img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
      display: block;
      border: 1px solid var(--border-color);
    }

    .network-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }

    .network-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px;
      text-align: center;
      transition: var(--transition);
    }

    .network-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .network-city {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .network-scope {
      font-size: 0.85rem;
      color: var(--text-regular);
    }

    .agent-box {
      background: linear-gradient(135deg, #ffffff 0%, #f4f8ff 100%);
      border: 1px solid rgba(0, 82, 217, 0.2);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 3fr 2fr;
      gap: 36px;
      align-items: center;
      box-shadow: var(--shadow-sm);
    }

    .agent-points {
      margin: 18px 0 24px 0;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .agent-points li {
      font-size: 0.95rem;
      color: var(--text-regular);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .agent-points li::before {
      content: "★";
      color: var(--accent-warm);
    }

    .agent-cta-box {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      box-shadow: var(--shadow-sm);
    }

    .agent-cta-box h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .agent-cta-box p {
      font-size: 0.88rem;
      color: var(--text-regular);
      margin-bottom: 18px;
    }

    .site-footer {
      background: #11141a;
      color: #9aa1ad;
      padding: 60px 0 24px 0;
      border-top: 1px solid #232733;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      padding-bottom: 40px;
      border-bottom: 1px solid #232733;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.2rem;
      margin-bottom: 12px;
    }

    .footer-brand p {
      font-size: 0.88rem;
      line-height: 1.6;
      max-width: 320px;
    }

    .footer-col h5 {
      color: #ffffff;
      font-size: 0.98rem;
      font-weight: 600;
      margin-bottom: 16px;
    }

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

    .footer-col ul li a {
      color: #9aa1ad;
      font-size: 0.88rem;
    }

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

    .friend-links-strip {
      padding: 20px 0;
      border-bottom: 1px solid #232733;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 18px;
      font-size: 0.85rem;
    }

    .friend-links-strip span {
      color: #ffffff;
      font-weight: 600;
    }

    .friend-links-strip a {
      color: #9aa1ad;
    }

    .friend-links-strip a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.82rem;
      color: #687182;
    }

    .float-dock {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .dock-btn {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      color: var(--text-main);
      font-size: 1.15rem;
      transition: var(--transition);
      position: relative;
    }

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

    .dock-qr-popup {
      position: absolute;
      right: 60px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 140px;
      text-align: center;
    }

    .dock-qr-popup img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 4px;
      margin-bottom: 6px;
    }

    .dock-qr-popup span {
      font-size: 0.75rem;
      color: var(--text-main);
      font-weight: 600;
      display: block;
    }

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

    @media (max-width: 1024px) {
      .services-grid,
      .cases-gallery,
      .reviews-grid,
      .articles-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-steps-grid,
      .network-grid,
      .hero-metrics-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .two-column-block,
      .agent-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links,
      .header-actions {
        display: none;
      }
      .nav-links.mobile-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);
      }
      .nav-links.mobile-open a {
        padding: 12px 16px;
        width: 100%;
      }
      .mobile-menu-btn {
        display: block;
      }
      .hero-title {
        font-size: 2.1rem;
      }
      .hero-sub {
        font-size: 1rem;
      }
      .section-title {
        font-size: 1.7rem;
      }
      .services-grid,
      .cases-gallery,
      .reviews-grid,
      .articles-grid,
      .intro-grid,
      .workflow-steps-grid,
      .network-grid,
      .hero-metrics-grid {
        grid-template-columns: 1fr;
      }
      .promo-banner-imgs {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .eval-highlight-strip {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
      }
    }