:root {
      --primary: #2563eb;
      --primary-light: #3b82f6;
      --primary-gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
      --accent-gradient: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
      --surface-gradient: linear-gradient(180deg, #f0fdfa 0%, #f8fafc 100%);
      --hero-gradient: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 50%, #f0fdf4 100%);
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-focus: #3b82f6;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 16px 36px rgba(37, 99, 235, 0.12);
      --container-max: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-logo-container {
      width: 42px;
      height: 42px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: #0f172a;
      letter-spacing: -0.02em;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      padding: 8px 14px;
      font-size: 0.93rem;
      font-weight: 500;
      color: var(--text-muted);
      border-radius: 6px;
      transition: all 0.2s ease;
    }
    .nav-links li a:hover {
      color: var(--primary);
      background: #eff6ff;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-header-official {
      padding: 8px 20px;
      background: var(--primary-gradient);
      color: #ffffff !important;
      font-size: 0.9rem;
      font-weight: 600;
      border-radius: 999px;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .btn-header-official:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    }
    .menu-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      border-radius: 6px;
      padding: 6px 10px;
      cursor: pointer;
      color: var(--text-main);
    }
    .hero-section {
      background: var(--hero-gradient);
      padding: 72px 0 64px;
      border-bottom: 1px solid #e0e7ff;
      position: relative;
    }
    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: 999px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .hero-title {
      font-size: 2.5rem;
      line-height: 1.25;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -0.03em;
    }
    .hero-desc {
      font-size: 1.15rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 36px;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .btn-primary-glow {
      padding: 14px 34px;
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      border-radius: 12px;
      box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .btn-primary-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.45);
    }
    .btn-outline-action {
      padding: 14px 28px;
      background: #ffffff;
      color: #0f172a;
      font-size: 1rem;
      font-weight: 600;
      border: 1px solid #cbd5e1;
      border-radius: 12px;
      transition: all 0.25s ease;
    }
    .btn-outline-action:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #eff6ff;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      text-align: left;
    }
    .hero-stat-card {
      background: #ffffff;
      padding: 20px;
      border-radius: var(--radius-md);
      border: 1px solid #dbeafe;
      box-shadow: var(--shadow-sm);
    }
    .hero-stat-card .val {
      font-size: 1.75rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 4px;
    }
    .hero-stat-card .lbl {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    .section-wrap {
      padding: 80px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background: #f1f5f9;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .sec-header {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }
    .sec-tag {
      display: inline-block;
      padding: 4px 14px;
      background: #dbeafe;
      color: #1d4ed8;
      font-size: 0.82rem;
      font-weight: 700;
      border-radius: 999px;
      margin-bottom: 12px;
      letter-spacing: 0.05em;
    }
    .sec-title {
      font-size: 2rem;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 14px;
    }
    .sec-sub {
      font-size: 1rem;
      color: var(--text-muted);
    }
    .about-box {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .about-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .about-text h3 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: #0f172a;
    }
    .about-text p {
      font-size: 0.98rem;
      color: var(--text-muted);
      margin-bottom: 14px;
      line-height: 1.75;
    }
    .about-highlights {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      margin-top: 24px;
    }
    .highlight-chip {
      background: #f8fafc;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--primary);
      font-size: 0.9rem;
      font-weight: 600;
      color: #1e293b;
    }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: #93c5fd;
    }
    .service-icon-wrap {
      width: 48px;
      height: 48px;
      background: #eff6ff;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .service-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #0f172a;
    }
    .service-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .service-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .service-tags span {
      background: #f1f5f9;
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.78rem;
      color: #475569;
      font-weight: 500;
    }
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .scene-box {
      background: #ffffff;
      border: 1px solid #e2e8f0;
      border-radius: var(--radius-md);
      padding: 22px;
      transition: border-color 0.2s;
    }
    .scene-box:hover {
      border-color: var(--primary);
    }
    .scene-box h4 {
      font-size: 1.05rem;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .scene-box h4::before {
      content: "";
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      display: inline-block;
    }
    .scene-box p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .model-badge-cloud {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      margin-top: 36px;
    }
    .model-cloud-header {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 20px;
      text-align: center;
      color: #0f172a;
    }
    .cloud-tags-list {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }
    .model-tag {
      padding: 6px 14px;
      background: #f8fafc;
      border: 1px solid #cbd5e1;
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      color: #334155;
      transition: all 0.2s;
    }
    .model-tag:hover {
      background: #eff6ff;
      border-color: var(--primary-light);
      color: var(--primary);
    }
    .steps-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      text-align: center;
      position: relative;
    }
    .step-num {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin: 0 auto 16px;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
    }
    .step-item h4 {
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .step-item p {
      font-size: 0.86rem;
      color: var(--text-muted);
      line-height: 1.55;
    }
    .score-banner {
      background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 32px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 20px;
    }
    .score-left h3 {
      font-size: 1.45rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #f8fafc;
    }
    .score-left p {
      font-size: 0.95rem;
      color: #94a3b8;
    }
    .score-badges {
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .score-card {
      text-align: right;
    }
    .score-big {
      font-size: 2.8rem;
      font-weight: 900;
      color: #38bdf8;
      line-height: 1;
    }
    .score-sub {
      font-size: 0.85rem;
      color: #cbd5e1;
      margin-top: 4px;
    }
    .stars-render {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }
    .table-container {
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .eval-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 0.92rem;
    }
    .eval-table th, .eval-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .eval-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #1e293b;
    }
    .eval-table tr:last-child td {
      border-bottom: none;
    }
    .col-highlight {
      background: #eff6ff;
      font-weight: 600;
      color: var(--primary);
    }
    .badge-pill-yes {
      display: inline-block;
      padding: 3px 10px;
      background: #dcfce7;
      color: #15803d;
      font-weight: 600;
      font-size: 0.8rem;
      border-radius: 999px;
    }
    .badge-pill-mid {
      display: inline-block;
      padding: 3px 10px;
      background: #fef3c7;
      color: #b45309;
      font-weight: 600;
      font-size: 0.8rem;
      border-radius: 999px;
    }
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .price-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 32px 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .price-card.featured {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .featured-label {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #ffffff;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 700;
    }
    .price-name {
      font-size: 1.2rem;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .price-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .price-val span {
      font-size: 0.95rem;
      font-weight: 400;
      color: var(--text-muted);
    }
    .price-features {
      list-style: none;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .price-features li {
      font-size: 0.9rem;
      color: var(--text-muted);
      padding: 8px 0;
      border-bottom: 1px dashed var(--border-color);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .price-features li::before {
      content: "✓";
      color: #10b981;
      font-weight: 800;
    }
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .case-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #e2e8f0;
    }
    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .case-card:hover .case-img-wrap img {
      transform: scale(1.04);
    }
    .case-body {
      padding: 20px;
    }
    .case-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .case-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.55;
    }
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      font-style: italic;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .review-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: #dbeafe;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .review-info .name {
      font-size: 0.92rem;
      font-weight: 700;
      color: #0f172a;
    }
    .review-info .role {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.2s;
    }
    .faq-question {
      padding: 18px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-weight: 600;
      font-size: 1rem;
      color: #0f172a;
      background: #ffffff;
      user-select: none;
    }
    .faq-question::after {
      content: "+";
      font-size: 1.25rem;
      font-weight: 400;
      color: var(--text-light);
      transition: transform 0.2s;
    }
    .faq-item.active .faq-question::after {
      content: "−";
      color: var(--primary);
    }
    .faq-answer {
      display: none;
      padding: 0 24px 18px;
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      background: #ffffff;
      border-top: 1px solid #f8fafc;
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    .form-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
      max-width: 800px;
      margin: 0 auto;
    }
    .contact-form {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: #1e293b;
    }
    .form-control {
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      background: #f8fafc;
      color: #0f172a;
      outline: none;
      transition: border-color 0.2s;
      font-family: inherit;
    }
    .form-control:focus {
      border-color: var(--primary);
      background: #ffffff;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .btn-submit {
      grid-column: span 2;
      padding: 14px;
      background: var(--primary-gradient);
      color: #ffffff;
      border: none;
      border-radius: 8px;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
      transition: opacity 0.2s;
    }
    .btn-submit:hover {
      opacity: 0.95;
    }
    .agent-block {
      background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
      border: 1px solid #bfdbfe;
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 32px;
      align-items: center;
    }
    .agent-text h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: #1e3a8a;
      margin-bottom: 12px;
    }
    .agent-text p {
      font-size: 0.96rem;
      color: #1e40af;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .agent-card-right {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .agent-qr-wrap {
      width: 140px;
      height: 140px;
      margin: 0 auto 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 8px;
      overflow: hidden;
    }
    .agent-qr-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .agent-qr-tip {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }
    .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: 20px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s;
    }
    .article-item:hover {
      transform: translateY(-2px);
      border-color: #93c5fd;
    }
    .article-item a {
      display: block;
      font-size: 1rem;
      font-weight: 600;
      color: #0f172a;
      line-height: 1.45;
      margin-bottom: 10px;
    }
    .article-item a:hover {
      color: var(--primary);
    }
    .article-meta {
      font-size: 0.82rem;
      color: var(--text-light);
    }
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 32px;
      border-top: 1px solid #1e293b;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 36px;
      margin-bottom: 48px;
    }
    .footer-col h5 {
      color: #f8fafc;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 0.88rem;
      line-height: 1.6;
      margin-bottom: 10px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .footer-links a {
      font-size: 0.88rem;
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #38bdf8;
    }
    .footer-qr-block {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .footer-qr-img {
      width: 90px;
      height: 90px;
      background: #ffffff;
      padding: 4px;
      border-radius: 6px;
    }
    .footer-qr-text {
      font-size: 0.82rem;
      line-height: 1.5;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.82rem;
    }
    .friendly-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
    }
    .friendly-links a {
      color: #64748b;
    }
    .friendly-links a:hover {
      color: #94a3b8;
    }
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-kefu-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary-gradient);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
      cursor: pointer;
      position: relative;
    }
    .float-kefu-btn:hover .float-kefu-pop {
      display: block;
    }
    .float-kefu-pop {
      display: none;
      position: absolute;
      right: 56px;
      bottom: 0;
      background: #ffffff;
      border-radius: 8px;
      padding: 12px;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      width: 140px;
      text-align: center;
      color: #0f172a;
    }
    .float-kefu-pop img {
      width: 100%;
      height: auto;
      border-radius: 4px;
      margin-bottom: 6px;
    }
    .float-kefu-pop span {
      font-size: 0.75rem;
      color: #64748b;
    }
    .btn-back-top {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #ffffff;
      color: #0f172a;
      border: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-sm);
      cursor: pointer;
      transition: all 0.2s;
    }
    .btn-back-top:hover {
      background: #f1f5f9;
      color: var(--primary);
    }
    @media (max-width: 1024px) {
      .services-grid, .scenes-grid, .reviews-grid, .case-gallery, .price-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-row {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .hero-stats-grid {
        grid-template-columns: 1fr;
      }
      .about-grid {
        grid-template-columns: 1fr;
      }
      .services-grid, .scenes-grid, .reviews-grid, .case-gallery, .price-grid, .articles-grid {
        grid-template-columns: 1fr;
      }
      .steps-row {
        grid-template-columns: 1fr;
      }
      .score-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .score-badges {
        width: 100%;
        justify-content: space-between;
      }
      .contact-form {
        grid-template-columns: 1fr;
      }
      .form-group.full {
        grid-column: span 1;
      }
      .btn-submit {
        grid-column: span 1;
      }
      .agent-block {
        grid-template-columns: 1fr;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }