/* roulang page: index */
:root {
      --primary: #00E599;
      --primary-dark: #0D382A;
      --primary-hover: #00c784;
      --accent: #FF6B00;
      --accent-hover: #e05e00;
      --dark-obsidian: #0A0F1D;
      --dark-surface: #141B2D;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 30px -4px rgba(0, 229, 153, 0.18);
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    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;
      line-height: 1.75;
      color: var(--text-main);
      background-color: var(--bg-white);
      -webkit-font-smoothing: antialiased;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .top-bar {
      background: var(--dark-obsidian);
      color: var(--text-light);
      font-size: 0.85rem;
      padding: 6px 0;
      border-bottom: 1px solid var(--border-dark);
    }
    .top-bar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-items {
      display: flex;
      gap: 20px;
      align-items: center;
    }
    .top-bar-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--dark-obsidian);
    }
    .brand-logo-icon {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }
    .brand-logo-text {
      letter-spacing: -0.5px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover {
      color: var(--dark-obsidian);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: var(--transition);
    }
    .nav-link:hover::after {
      width: 100%;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      min-height: 44px;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: var(--dark-obsidian);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      box-shadow: 0 4px 14px rgba(0, 229, 153, 0.4);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #fff;
    }
    .btn-accent:hover {
      background-color: var(--accent-hover);
      box-shadow: 0 4px 14px rgba(255, 107, 0, 0.35);
    }
    .btn-outline {
      background: transparent;
      border-color: var(--border-color);
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--dark-obsidian);
      background: rgba(15, 23, 42, 0.03);
    }
    .btn-white {
      background: #fff;
      color: var(--dark-obsidian);
    }
    .btn-white:hover {
      background: #F1F5F9;
    }
    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }
    .section-wrap {
      padding: 88px 0;
      position: relative;
    }
    .section-wrap.alt-bg {
      background-color: var(--bg-light);
    }
    .section-wrap.dark-bg {
      background-color: var(--dark-obsidian);
      color: #fff;
    }
    .section-header {
      margin-bottom: 50px;
    }
    .section-header.text-center {
      text-align: center;
      max-width: 820px;
      margin-left: auto;
      margin-right: auto;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 12px;
      background: rgba(0, 229, 153, 0.12);
      color: #047857;
      border: 1px solid rgba(0, 229, 153, 0.25);
    }
    .section-wrap.dark-bg .section-tag {
      background: rgba(0, 229, 153, 0.15);
      color: var(--primary);
      border-color: rgba(0, 229, 153, 0.3);
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .section-wrap.dark-bg .section-title {
      color: #fff;
    }
    .section-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.8;
    }
    .section-wrap.dark-bg .section-subtitle {
      color: var(--text-light);
    }
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #F0FDF4 0%, #FFFFFF 100%);
      padding: 60px 0 80px;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.75rem;
      font-weight: 900;
      line-height: 1.2;
      color: var(--dark-obsidian);
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }
    .hero-content h1 span {
      background: linear-gradient(135deg, #0D382A 0%, #009966 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 28px;
      line-height: 1.8;
    }
    .hero-appointment-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 24px;
      box-shadow: var(--shadow-card);
    }
    .hero-box-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--dark-obsidian);
    }
    .hero-time-slots {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-bottom: 18px;
    }
    .time-slot {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 10px 8px;
      text-align: center;
      cursor: pointer;
      transition: var(--transition);
      background: var(--bg-light);
    }
    .time-slot.active, .time-slot:hover {
      border-color: var(--primary);
      background: rgba(0, 229, 153, 0.08);
      font-weight: 600;
      color: var(--dark-obsidian);
    }
    .time-slot-name {
      font-size: 0.9rem;
      margin-bottom: 2px;
    }
    .time-slot-status {
      font-size: 0.75rem;
      color: #059669;
    }
    .hero-form-row {
      display: flex;
      gap: 10px;
      margin-bottom: 16px;
    }
    .hero-input {
      flex: 1;
      height: 46px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #fff;
      font-size: 0.95rem;
      outline: none;
    }
    .hero-input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 229, 153, 0.2);
    }
    .hero-visual-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 20px 40px -10px rgba(13, 56, 42, 0.15);
      border: 1px solid rgba(0, 229, 153, 0.3);
    }
    .hero-visual-card img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .hero-badge-float {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(10, 15, 29, 0.88);
      backdrop-filter: blur(10px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .hbf-item-title {
      font-size: 0.75rem;
      color: var(--text-light);
    }
    .hbf-item-val {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--primary);
    }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 32px 28px;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }
    .product-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .product-header-icon {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: rgba(0, 229, 153, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #047857;
      margin-bottom: 20px;
    }
    .product-name {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark-obsidian);
    }
    .product-summary {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 22px;
    }
    .feature-list {
      list-style: none;
      margin-bottom: 26px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex-grow: 1;
    }
    .feature-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.9rem;
      color: var(--text-main);
    }
    .feature-item svg {
      color: #059669;
      flex-shrink: 0;
    }
    .tech-split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .tech-visual {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-card);
    }
    .tech-visual img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .spec-table-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .spec-row {
      display: flex;
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
      align-items: center;
    }
    .spec-row:last-child {
      border-bottom: none;
    }
    .spec-label {
      width: 40%;
      font-weight: 600;
      color: var(--text-main);
      font-size: 0.95rem;
    }
    .spec-val {
      width: 60%;
      color: var(--text-muted);
      font-size: 0.92rem;
    }
    .advantages-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .adv-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .adv-card:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
    }
    .adv-icon {
      width: 44px;
      height: 44px;
      border-radius: 8px;
      background: rgba(13, 56, 42, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #0D382A;
      margin-bottom: 16px;
    }
    .adv-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--dark-obsidian);
    }
    .adv-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .workflow-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .wf-step-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .wf-step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--dark-obsidian);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 16px;
    }
    .wf-step-title {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--dark-obsidian);
    }
    .wf-step-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .arch-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .arch-card {
      background: var(--dark-surface);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
    }
    .arch-card:hover {
      border-color: var(--primary);
    }
    .arch-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #fff;
    }
    .arch-card p {
      font-size: 0.9rem;
      color: var(--text-light);
      line-height: 1.7;
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .case-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      display: flex;
      flex-direction: column;
    }
    .case-img-wrap {
      height: 220px;
      overflow: hidden;
    }
    .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(1.04);
    }
    .case-body {
      padding: 26px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .case-tag {
      font-size: 0.78rem;
      font-weight: 600;
      color: #059669;
      background: rgba(0, 229, 153, 0.12);
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
      align-self: flex-start;
    }
    .case-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--dark-obsidian);
    }
    .case-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .case-metric-box {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-color);
    }
    .cmb-val {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--dark-obsidian);
    }
    .cmb-lbl {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .metric-banner-section {
      background: linear-gradient(135deg, var(--dark-obsidian) 0%, #0D382A 100%);
      padding: 56px 0;
      color: #fff;
    }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      text-align: center;
    }
    .metric-item {
      padding: 10px 16px;
    }
    .metric-number {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    }
    .metric-label {
      font-size: 0.95rem;
      color: #CBD5E1;
      font-weight: 500;
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 22px;
      position: relative;
    }
    .testi-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testi-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #E2E8F0;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #475569;
    }
    .testi-name {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--dark-obsidian);
    }
    .testi-role {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .news-card {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      box-shadow: var(--shadow-hover);
    }
    .news-img {
      height: 180px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 22px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--dark-obsidian);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-excerpt {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .faq-item details summary {
      padding: 22px 24px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--dark-obsidian);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-item details summary::-webkit-details-marker {
      display: none;
    }
    .faq-item details summary::after {
      content: '+';
      font-size: 1.5rem;
      font-weight: 400;
      color: var(--text-muted);
      transition: transform 0.2s ease;
    }
    .faq-item details[open] summary::after {
      content: '−';
      color: var(--primary-hover);
    }
    .faq-answer {
      padding: 0 24px 22px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.75;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .cta-banner {
      background: linear-gradient(135deg, var(--dark-obsidian) 0%, #064E3B 100%);
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      color: #fff;
      box-shadow: 0 20px 40px -10px rgba(10, 15, 29, 0.4);
    }
    .cert-row {
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
      padding-bottom: 40px;
      margin-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }
    .cert-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.9rem;
      color: #E2E8F0;
    }
    .cert-icon {
      width: 28px;
      height: 28px;
      border-radius: 6px;
      background: rgba(0, 229, 153, 0.15);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .cta-heading {
      font-size: 2.2rem;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-desc {
      font-size: 1.05rem;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-md);
      padding: 26px;
      backdrop-filter: blur(8px);
    }
    .cta-form input {
      width: 100%;
      height: 48px;
      margin-bottom: 14px;
      padding: 0 16px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.95);
      color: var(--text-main);
      outline: none;
    }
    .site-footer {
      background: #060913;
      color: #94A3B8;
      padding: 64px 0 32px;
      font-size: 0.9rem;
      border-top: 1px solid var(--border-dark);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand {
      color: #fff;
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 20px;
      font-size: 0.88rem;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      padding-top: 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .products-grid, .advantages-grid, .arch-grid, .news-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .workflow-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .cta-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .nav-toggle {
        display: block;
      }
      .section-wrap {
        padding: 56px 0;
      }
      .section-title {
        font-size: 1.8rem;
      }
      .products-grid, .advantages-grid, .arch-grid, .news-grid, .testimonials-grid, .cases-grid {
        grid-template-columns: 1fr;
      }
      .workflow-timeline {
        grid-template-columns: 1fr;
      }
      .tech-split {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .hero-time-slots {
        grid-template-columns: 1fr;
      }
      .hero-form-row {
        flex-direction: column;
      }
      .cta-banner {
        padding: 36px 20px;
      }
      .cert-row {
        flex-direction: column;
      }
    }