:root {
      --bg-base: #060913;
      --bg-surface: #0c1222;
      --bg-card: rgba(16, 24, 44, 0.75);
      --bg-card-hover: rgba(22, 34, 62, 0.9);
      --border-color: rgba(0, 242, 254, 0.15);
      --border-highlight: rgba(79, 172, 254, 0.4);
      --neon-cyan: #00f2fe;
      --neon-blue: #4facfe;
      --neon-purple: #9b51e0;
      --neon-green: #00f5a0;
      --text-main: #f0f6fc;
      --text-sub: #94a3b8;
      --text-muted: #64748b;
      --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.35);
      --glow-purple: 0 0 25px rgba(155, 81, 224, 0.35);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    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-base);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      background-image: 
        radial-gradient(circle at 15% 15%, rgba(0, 242, 254, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 30%, rgba(155, 81, 224, 0.08) 0%, transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(0, 245, 160, 0.05) 0%, transparent 50%);
      background-attachment: fixed;
    }

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

    img {
      display: block;
      max-width: 100%;
      height: auto;
    }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .section {
      padding: 90px 0;
      position: relative;
    }

    .section-title-wrap {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 55px;
    }

    .section-badge {
      display: inline-flex;
      align-items: center;
      padding: 4px 14px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--neon-cyan);
      background: rgba(0, 242, 254, 0.08);
      border: 1px solid rgba(0, 242, 254, 0.3);
      border-radius: 999px;
      margin-bottom: 14px;
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
    }

    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
      line-height: 1.3;
    }

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

    /* 顶部导航 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(6, 9, 19, 0.85);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(0, 242, 254, 0.12);
    }

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

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

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

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: 0.5px;
      background: linear-gradient(90deg, #ffffff, var(--neon-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links a {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-sub);
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      position: relative;
    }

    .nav-links a:hover {
      color: var(--neon-cyan);
    }

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

    .btn-neon-outline {
      padding: 8px 18px;
      font-size: 14px;
      font-weight: 600;
      color: var(--neon-cyan);
      border: 1px solid var(--neon-cyan);
      border-radius: var(--radius-sm);
      background: transparent;
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
      cursor: pointer;
    }

    .btn-neon-outline:hover {
      background: rgba(0, 242, 254, 0.12);
      box-shadow: var(--glow-cyan);
      color: #fff;
    }

    .btn-neon-solid {
      padding: 9px 22px;
      font-size: 14px;
      font-weight: 600;
      color: #040810;
      border: none;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
      box-shadow: var(--glow-cyan);
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
    }

    .btn-neon-solid:hover {
      opacity: 0.92;
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.5);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      font-size: 24px;
      cursor: pointer;
    }

    /* 首屏 Hero (严格无图) */
    .hero-section {
      padding: 110px 0 80px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero-glow-blob {
      position: absolute;
      width: 480px;
      height: 480px;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, rgba(155, 81, 224, 0.1) 45%, transparent 70%);
      filter: blur(60px);
      z-index: 0;
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 920px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      background: rgba(16, 24, 44, 0.8);
      border: 1px solid var(--border-highlight);
      color: var(--neon-cyan);
      margin-bottom: 24px;
      box-shadow: var(--glow-cyan);
    }

    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      color: #ffffff;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00f5a0 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-sub {
      font-size: 18px;
      color: var(--text-sub);
      max-width: 780px;
      margin: 0 auto 36px;
      line-height: 1.65;
    }

    .hero-cta-group {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      margin-bottom: 50px;
      flex-wrap: wrap;
    }

    .hero-btn-main {
      padding: 14px 36px;
      font-size: 16px;
      font-weight: 700;
      border-radius: var(--radius-md);
      background: linear-gradient(135deg, #00f2fe, #4facfe);
      color: #040810;
      box-shadow: 0 0 25px rgba(0, 242, 254, 0.45);
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .hero-btn-main:hover {
      transform: translateY(-3px);
      box-shadow: 0 0 35px rgba(0, 242, 254, 0.7);
    }

    .hero-btn-sub {
      padding: 14px 32px;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-md);
      background: rgba(16, 24, 44, 0.9);
      border: 1px solid var(--border-highlight);
      color: #ffffff;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    }

    .hero-btn-sub:hover {
      background: rgba(22, 34, 62, 1);
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
    }

    /* 指标条 */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      max-width: 980px;
      margin: 0 auto;
      text-align: left;
    }

    .metric-box {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 20px 22px;
      backdrop-filter: blur(10px);
      transition: var(--transition);
    }

    .metric-box:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-3px);
    }

    .metric-val {
      font-size: 28px;
      font-weight: 800;
      color: var(--neon-cyan);
      font-family: monospace, sans-serif;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 平台矩阵滚动标签 */
    .models-stream {
      margin-top: 50px;
      padding: 18px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      background: rgba(8, 14, 28, 0.5);
      overflow: hidden;
    }

    .stream-track {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: center;
    }

    .model-chip {
      padding: 6px 14px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-sm);
      font-size: 13px;
      font-weight: 500;
      color: #cbd5e1;
    }

    .model-chip:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
    }

    /* 平台介绍 */
    .about-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }

    .about-card-main {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
      position: relative;
    }

    .about-card-main h3 {
      font-size: 24px;
      color: #fff;
      margin-bottom: 16px;
    }

    .about-list {
      list-style: none;
      margin: 24px 0 0;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .about-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 15px;
      color: var(--text-sub);
    }

    .about-list li svg {
      width: 18px;
      height: 18px;
      fill: var(--neon-cyan);
      flex-shrink: 0;
      margin-top: 3px;
    }

    .about-highlights {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .hl-box {
      background: rgba(16, 24, 44, 0.5);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }

    .hl-box:hover {
      border-color: var(--neon-purple);
      transform: translateY(-3px);
    }

    .hl-box h4 {
      font-size: 17px;
      color: #fff;
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .hl-box h4 span {
      width: 8px;
      height: 8px;
      background: var(--neon-cyan);
      border-radius: 50%;
    }

    .hl-box p {
      font-size: 13px;
      color: var(--text-sub);
    }

    /* 服务场景网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 22px;
    }

    .service-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .service-card:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-4px);
      box-shadow: 0 10px 30px rgba(0, 242, 254, 0.1);
    }

    .service-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
      opacity: 0;
      transition: var(--transition);
    }

    .service-card:hover::before {
      opacity: 1;
    }

    .service-icon {
      width: 44px;
      height: 44px;
      background: rgba(0, 242, 254, 0.1);
      border: 1px solid rgba(0, 242, 254, 0.25);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      margin-bottom: 18px;
    }

    .service-card h3 {
      font-size: 19px;
      color: #ffffff;
      margin-bottom: 10px;
    }

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

    /* 案例中心 */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }

    .case-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }

    .case-card:hover {
      border-color: var(--neon-blue);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    }

    .case-media-box {
      aspect-ratio: 16 / 9;
      background: #020408;
      overflow: hidden;
    }

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

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

    .case-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .case-body h4 {
      font-size: 18px;
      color: #fff;
      margin-bottom: 8px;
    }

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

    .case-tags {
      display: flex;
      gap: 8px;
      margin-top: auto;
      flex-wrap: wrap;
    }

    .case-tags span {
      font-size: 12px;
      padding: 3px 10px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.05);
      color: var(--neon-cyan);
    }

    .banners-gallery {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 24px;
    }

    .banner-img-item {
      border-radius: var(--radius-sm);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }

    .banner-img-item img {
      width: 100%;
      aspect-ratio: 16/9;
      object-fit: cover;
    }

    /* 对比评测表格与卡片 */
    .compare-wrap {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px;
    }

    .score-badge-box {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: linear-gradient(90deg, rgba(0, 242, 254, 0.1), rgba(155, 81, 224, 0.1));
      border: 1px solid var(--border-highlight);
      border-radius: var(--radius-md);
      padding: 20px 30px;
      margin-bottom: 30px;
      flex-wrap: wrap;
      gap: 16px;
    }

    .score-item {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .score-num {
      font-size: 36px;
      font-weight: 900;
      color: var(--neon-cyan);
      font-family: monospace, sans-serif;
    }

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

    .stars {
      color: #ffb800;
      letter-spacing: 2px;
      font-size: 18px;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

    .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 rgba(255, 255, 255, 0.08);
      font-size: 14px;
    }

    .compare-table th {
      color: var(--text-muted);
      font-weight: 600;
      text-transform: uppercase;
      font-size: 13px;
    }

    .compare-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }

    .table-highlight {
      color: var(--neon-cyan);
      font-weight: 600;
    }

    /* 流程步骤 */
    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 22px;
      position: relative;
      transition: var(--transition);
    }

    .step-card:hover {
      border-color: var(--neon-cyan);
      transform: translateY(-4px);
    }

    .step-num {
      font-size: 32px;
      font-weight: 900;
      color: rgba(0, 242, 254, 0.2);
      margin-bottom: 12px;
      font-family: monospace;
    }

    .step-card h4 {
      font-size: 18px;
      color: #fff;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 13px;
      color: var(--text-sub);
    }

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

    .review-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .review-card:hover {
      border-color: var(--border-highlight);
      transform: translateY(-3px);
    }

    .review-content {
      font-size: 14px;
      color: #cbd5e1;
      line-height: 1.65;
      margin-bottom: 20px;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 14px;
    }

    .user-avatar-badge {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
      font-size: 14px;
    }

    .user-info h5 {
      font-size: 14px;
      color: #fff;
    }

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

    /* FAQ 折叠面板 */
    .faq-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

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

    .faq-item.active {
      border-color: var(--border-highlight);
    }

    .faq-header {
      padding: 18px 22px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-weight: 600;
      font-size: 15px;
      color: #ffffff;
      background: rgba(255, 255, 255, 0.01);
    }

    .faq-header:hover {
      color: var(--neon-cyan);
    }

    .faq-icon {
      font-size: 18px;
      color: var(--neon-cyan);
      transition: transform 0.3s ease;
    }

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

    .faq-body {
      padding: 0 22px 18px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      display: none;
    }

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

    /* 需求表单与联系 */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 36px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
    }

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

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 500;
      color: #ffffff;
      margin-bottom: 6px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      background: rgba(6, 9, 19, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      color: #ffffff;
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }

    .form-control:focus {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
    }

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

    .contact-info-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background: rgba(6, 9, 19, 0.5);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
    }

    .contact-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-bottom: 24px;
    }

    .contact-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: var(--text-sub);
    }

    .contact-item strong {
      color: #fff;
    }

    .qrcode-box {
      text-align: center;
      padding: 18px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: var(--radius-sm);
      border: 1px dashed var(--border-highlight);
    }

    .qrcode-box img {
      width: 120px;
      height: 120px;
      margin: 0 auto 10px;
      border-radius: 6px;
    }

    .qrcode-box span {
      font-size: 13px;
      color: var(--neon-cyan);
    }

    /* 资讯与外链 */
    .article-links-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 20px;
    }

    .article-chip {
      padding: 8px 16px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 13px;
      color: var(--text-sub);
    }

    .article-chip:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
    }

    /* 友情链接与页脚 */
    .site-footer {
      background: #03060c;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 55px 0 25px;
      color: var(--text-muted);
      font-size: 13px;
    }

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

    .footer-brand p {
      margin-top: 12px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    .friend-links-box {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .friend-links-title {
      font-size: 15px;
      font-weight: 600;
      color: #fff;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-list a {
      color: var(--text-sub);
      font-size: 13px;
    }

    .friend-links-list a:hover {
      color: var(--neon-cyan);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    /* 浮动组件 */
    .float-kefu {
      position: fixed;
      right: 24px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--bg-surface);
      border: 1px solid var(--neon-cyan);
      box-shadow: var(--glow-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--neon-cyan);
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--neon-cyan);
      color: #040810;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .services-grid, .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .steps-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .about-grid, .contact-wrapper, .footer-top {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links, .nav-btn-group {
        display: none;
      }
      .nav-toggle {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--bg-surface);
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .services-grid, .reviews-grid, .faq-grid, .case-grid, .banners-gallery {
        grid-template-columns: 1fr;
      }
      .hero-metrics {
        grid-template-columns: 1fr;
      }
      .about-highlights {
        grid-template-columns: 1fr;
      }
    }