/* roulang page: index */
:root {
      --bg-primary: #F8F9FA;
      --bg-surface: #FFFFFF;
      --bg-dark: #0F1115;
      --bg-dark-card: #171A21;
      --brand-blue: #0052FF;
      --brand-blue-hover: #0045D8;
      --brand-purple: #6366F1;
      --status-green: #10B981;
      --text-main: #111827;
      --text-body: #374151;
      --text-muted: #6B7280;
      --text-inverted: #F9FAFB;
      --border-light: rgba(0, 0, 0, 0.08);
      --border-dark: rgba(255, 255, 255, 0.08);
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 16px 36px -6px rgba(0, 0, 0, 0.1);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --font-stack: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      --transition: cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      background-color: var(--bg-primary);
      color: var(--text-body);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Top Utility Bar */
    .top-bar {
      background-color: #1A1D24;
      color: #9CA3AF;
      font-size: 13px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 38px;
    }
    .top-bar-status {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .status-dot {
      width: 8px;
      height: 8px;
      background-color: var(--status-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--status-green);
    }
    .top-bar-contact {
      display: flex;
      gap: 20px;
    }

    /* Main Navigation */
    .site-header {
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
      position: sticky;
      top: 0;
      z-index: 1000;
      transition: all var(--transition);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.01em;
    }
    .logo-symbol {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--brand-blue), var(--brand-purple));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFF;
      font-weight: 800;
      font-size: 19px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 32px;
    }
    .nav-item a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      position: relative;
      padding: 6px 0;
    }
    .nav-item a:hover {
      color: var(--brand-blue);
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 24px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      transition: all var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--brand-blue);
      color: #FFF;
    }
    .btn-primary:hover {
      background-color: var(--brand-blue-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 82, 255, 0.25);
    }
    .btn-outline {
      border-color: rgba(0, 0, 0, 0.15);
      background-color: #FFF;
      color: var(--text-main);
    }
    .btn-outline:hover {
      border-color: var(--text-main);
      background-color: #FAFAFA;
      transform: translateY(-2px);
    }
    .btn-dark-outline {
      border-color: rgba(255, 255, 255, 0.2);
      background-color: transparent;
      color: #FFF;
    }
    .btn-dark-outline:hover {
      border-color: #FFF;
      background-color: rgba(255, 255, 255, 0.08);
      transform: translateY(-2px);
    }

    /* Section Base */
    .section-wrap {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFF;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: var(--text-inverted);
    }
    .section-heading {
      margin-bottom: 56px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--brand-blue);
      margin-bottom: 12px;
      background: rgba(0, 82, 255, 0.08);
      padding: 4px 12px;
      border-radius: 99px;
    }
    .section-tag-dark {
      color: var(--brand-purple);
      background: rgba(99, 102, 241, 0.15);
    }
    .section-title {
      font-size: 34px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .section-dark .section-title {
      color: var(--text-inverted);
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.8;
    }
    .section-dark .section-desc {
      color: #9CA3AF;
    }

    /* 1. Hero Banner */
    .hero-section {
      background: linear-gradient(180deg, #F3F5F9 0%, #FFFFFF 100%);
      padding: 80px 0 100px;
      border-bottom: 1px solid var(--border-light);
      position: relative;
      overflow: hidden;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 46px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.03em;
      color: var(--text-main);
      margin-bottom: 24px;
    }
    .hero-content p {
      font-size: 17px;
      line-height: 1.85;
      color: var(--text-body);
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .badge-chip {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      padding: 6px 14px;
      border-radius: 99px;
      font-size: 13px;
      color: var(--text-body);
      box-shadow: var(--shadow-sm);
    }
    .hero-visual {
      position: relative;
    }
    .hero-visual-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 16px;
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-light);
      position: relative;
    }
    .hero-visual-card img {
      border-radius: var(--radius-md);
      width: 100%;
      height: 380px;
      object-fit: cover;
    }
    .float-stat-bubble {
      position: absolute;
      background: rgba(15, 17, 21, 0.9);
      backdrop-filter: blur(8px);
      color: #FFF;
      padding: 14px 20px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-dark);
    }
    .bubble-1 {
      top: -20px;
      right: -20px;
    }
    .bubble-2 {
      bottom: -20px;
      left: -20px;
    }
    .bubble-value {
      font-size: 22px;
      font-weight: 700;
      color: var(--status-green);
      line-height: 1.2;
    }
    .bubble-label {
      font-size: 12px;
      color: #D1D5DB;
    }

    /* 2. Tech Specs & Architecture */
    .specs-grid {
      display: grid;
      grid-template-columns: 4fr 6fr;
      gap: 56px;
      align-items: start;
    }
    .specs-overview {
      background: #F8F9FA;
      padding: 40px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-light);
    }
    .specs-overview h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }
    .specs-overview p {
      font-size: 15px;
      color: var(--text-body);
      margin-bottom: 24px;
    }
    .specs-list {
      display: grid;
      gap: 16px;
    }
    .spec-item {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      gap: 20px;
      align-items: center;
      transition: transform var(--transition), box-shadow var(--transition);
    }
    .spec-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }
    .spec-code {
      font-family: monospace;
      font-size: 13px;
      background: rgba(0, 82, 255, 0.08);
      color: var(--brand-blue);
      padding: 6px 12px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      white-space: nowrap;
    }
    .spec-detail h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 4px;
      color: var(--text-main);
    }
    .spec-detail p {
      font-size: 14px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 3. Advantages Grid (6 Cards) */
    .cards-grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .adv-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .adv-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(0, 82, 255, 0.3);
    }
    .adv-icon {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-sm);
      background: rgba(0, 82, 255, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--brand-blue);
      font-weight: 700;
      font-size: 20px;
      margin-bottom: 24px;
    }
    .adv-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .adv-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }

    /* 4. Hot Products / Solutions */
    .solutions-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
    }
    .solution-card {
      background: #FFFFFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all var(--transition);
    }
    .solution-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-5px);
    }
    .solution-img {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .solution-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .solution-card:hover .solution-img img {
      transform: scale(1.05);
    }
    .solution-body {
      padding: 32px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .solution-body h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .solution-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 20px;
    }
    .solution-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
      padding-top: 16px;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
    }
    .solution-tag-pill {
      font-size: 12px;
      background: #F3F4F6;
      color: #4B5563;
      padding: 4px 10px;
      border-radius: 4px;
    }

    /* 5. Concept & Architecture (Dark Section) */
    .dark-concept-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .code-terminal {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-dark);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .terminal-header {
      background: #1F242D;
      padding: 12px 18px;
      display: flex;
      align-items: center;
      gap: 8px;
      border-bottom: 1px solid var(--border-dark);
    }
    .terminal-circle {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .c-red { background: #EF4444; }
    .c-yellow { background: #F59E0B; }
    .c-green { background: #10B981; }
    .terminal-title {
      font-size: 12px;
      color: #9CA3AF;
      margin-left: 8px;
      font-family: monospace;
    }
    .terminal-body {
      padding: 24px;
      font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
      font-size: 13px;
      color: #E5E7EB;
      line-height: 1.7;
    }
    .t-blue { color: #60A5FA; }
    .t-purple { color: #C084FC; }
    .t-green { color: #34D399; }
    .t-gray { color: #6B7280; }

    /* 6. Case Studies */
    .cases-container {
      display: grid;
      gap: 32px;
    }
    .case-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
    }
    .case-info h3 {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .case-steps {
      display: grid;
      gap: 16px;
      margin-top: 20px;
    }
    .case-step-item {
      padding: 14px 18px;
      background: #F8F9FA;
      border-left: 3px solid var(--brand-blue);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }
    .case-step-item strong {
      display: block;
      font-size: 14px;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .case-step-item span {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .case-metrics-box {
      background: #0F1115;
      color: #FFF;
      border-radius: var(--radius-md);
      padding: 32px;
      text-align: center;
      display: grid;
      gap: 24px;
    }
    .metric-value-huge {
      font-size: 38px;
      font-weight: 800;
      color: var(--brand-purple);
      line-height: 1;
    }
    .metric-label-text {
      font-size: 13px;
      color: #9CA3AF;
      margin-top: 6px;
    }

    /* 7. Metrics Counter Bar */
    .metrics-bar-section {
      background: #11141A;
      color: #FFF;
      padding: 60px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .metrics-bar-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-num {
      font-size: 44px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: #FFFFFF;
      margin-bottom: 8px;
      font-variant-numeric: tabular-nums;
    }
    .metric-desc {
      font-size: 14px;
      color: #9CA3AF;
    }

    /* 8. Testimonials */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testimonial-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-quote {
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-body);
      margin-bottom: 24px;
      position: relative;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid rgba(0, 0, 0, 0.05);
      padding-top: 18px;
    }
    .author-avatar {
      width: 42px;
      height: 42px;
      background: var(--brand-blue);
      border-radius: 50%;
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }
    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 9. Implementation Roadmap */
    .timeline-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-item {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
      transition: all var(--transition);
    }
    .timeline-item:hover {
      border-color: var(--brand-blue);
      transform: translateY(-4px);
    }
    .timeline-step {
      font-size: 24px;
      font-weight: 800;
      color: rgba(0, 82, 255, 0.2);
      margin-bottom: 12px;
      line-height: 1;
    }
    .timeline-item h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .timeline-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 10. News & Insights */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .news-card {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px;
      display: flex;
      flex-direction: column;
    }
    .news-meta {
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 16px;
    }
    .news-card h3 {
      font-size: 17px;
      font-weight: 700;
      line-height: 1.5;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .news-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      flex-grow: 1;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--brand-blue);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 11. FAQ Accordion */
    .faq-wrapper {
      max-width: 840px;
      margin: 0 auto;
      display: grid;
      gap: 16px;
    }
    .faq-item {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition);
    }
    .faq-item[open] {
      box-shadow: var(--shadow-sm);
      border-color: rgba(0, 82, 255, 0.25);
    }
    .faq-summary {
      padding: 22px 28px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: "+";
      font-size: 20px;
      color: var(--brand-blue);
      font-weight: 400;
      transition: transform var(--transition);
    }
    .faq-item[open] .faq-summary::after {
      content: "−";
    }
    .faq-content {
      padding: 0 28px 24px;
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.8;
      border-top: 1px solid rgba(0, 0, 0, 0.04);
      padding-top: 16px;
    }

    /* 12. SLA & Guarantees */
    .sla-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .sla-badge-box {
      background: #FFF;
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      text-align: center;
      transition: all var(--transition);
    }
    .sla-badge-box:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }
    .sla-icon {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: rgba(16, 185, 129, 0.08);
      color: var(--status-green);
      font-size: 22px;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
    }
    .sla-badge-box h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .sla-badge-box p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 13. CTA Conversion Box */
    .cta-container {
      background: linear-gradient(135deg, #0F1115 0%, #1A2130 100%);
      border-radius: var(--radius-lg);
      padding: 64px 48px;
      color: #FFF;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      align-items: center;
      border: 1px solid var(--border-dark);
    }
    .cta-text h3 {
      font-size: 32px;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-text p {
      font-size: 15px;
      color: #9CA3AF;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .cta-form {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .form-input {
      width: 100%;
      padding: 13px 18px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      color: #FFF;
      font-size: 14px;
      outline: none;
      transition: border var(--transition);
    }
    .form-input:focus {
      border-color: var(--brand-blue);
      background: rgba(255, 255, 255, 0.1);
    }
    .form-select {
      width: 100%;
      padding: 13px 18px;
      background: #171A21;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      color: #FFF;
      font-size: 14px;
      outline: none;
    }
    .form-privacy {
      font-size: 12px;
      color: #6B7280;
      line-height: 1.5;
    }

    /* Footer */
    .site-footer {
      background: #0B0D11;
      color: #9CA3AF;
      padding: 80px 0 32px;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 48px;
      margin-bottom: 60px;
    }
    .footer-brand h4 {
      font-size: 18px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.8;
      color: #6B7280;
      max-width: 320px;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 600;
      color: #FFF;
      margin-bottom: 20px;
    }
    .footer-links {
      list-style: none;
      display: grid;
      gap: 12px;
    }
    .footer-links a:hover {
      color: #FFF;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #4B5563;
    }

    /* Mobile Drawer */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .mobile-menu-btn span {
      display: block;
      width: 22px;
      height: 2px;
      background: var(--text-main);
      margin: 5px 0;
      transition: all var(--transition);
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-grid,
      .specs-grid,
      .case-card,
      .dark-concept-grid,
      .cta-container {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .cards-grid-3x2,
      .solutions-grid,
      .testimonials-grid,
      .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .sla-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 767px) {
      .top-bar {
        display: none;
      }
      .header-inner {
        height: 64px;
      }
      .nav-links,
      .nav-cta {
        display: none;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: #FFF;
        padding: 24px;
        border-bottom: 1px solid var(--border-light);
        gap: 16px;
        box-shadow: var(--shadow-md);
      }
      .section-wrap {
        padding: 60px 0;
      }
      .hero-content h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 26px;
      }
      .cards-grid-3x2,
      .solutions-grid,
      .testimonials-grid,
      .news-grid,
      .timeline-grid,
      .metrics-bar-grid,
      .sla-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .metrics-bar-grid {
        gap: 36px;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }