/* roulang page: index */
/* Design Variables */
    :root {
      --primary: #0F172A;
      --primary-light: #1E293B;
      --accent: #2563EB;
      --accent-hover: #1D4ED8;
      --accent-soft: #EFF6FF;
      --success: #10B981;
      --success-bg: #ECFDF5;
      --warning: #F59E0B;
      --bg-main: #F8FAFC;
      --bg-white: #FFFFFF;
      --bg-dark: #090D16;
      --text-main: #0F172A;
      --text-secondary: #475569;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --border-dark: #1E293B;
      --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05);
      --card-shadow-hover: 0 12px 28px -4px rgba(15, 23, 42, 0.12);
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }

    /* Reset & Base */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      text-size-adjust: 100%;
    }
    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Heiti SC", sans-serif;
      line-height: 1.7;
      color: var(--text-main);
      background-color: var(--bg-main);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font: inherit;
    }

    /* Layout & Containers */
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    .section-wrap {
      padding: 88px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #F8FAFC;
      border-bottom: 1px solid var(--border-dark);
    }
    .section-white {
      background-color: var(--bg-white);
    }

    /* Typography Utilities */
    .section-header {
      margin-bottom: 52px;
      max-width: 820px;
    }
    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.05em;
      text-transform: uppercase;
      color: var(--accent);
      background-color: var(--accent-soft);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 14px;
    }
    .section-tag-dark {
      background-color: rgba(37, 99, 235, 0.18);
      color: #60A5FA;
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.35;
      letter-spacing: -0.02em;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .section-dark .section-title {
      color: #F8FAFC;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* Header Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }
    .meta-bar {
      background-color: #0F172A;
      color: #94A3B8;
      font-size: 12px;
      border-bottom: 1px solid #1E293B;
      padding: 6px 0;
    }
    .meta-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .pulse-dot {
      width: 7px;
      height: 7px;
      background-color: var(--success);
      border-radius: 50%;
      box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3);
    }
    .nav-bar {
      height: 72px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 20px;
      color: var(--primary);
    }
    .logo-badge {
      background-color: var(--accent);
      color: #FFF;
      font-size: 13px;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      letter-spacing: 0.05em;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 6px 0;
      position: relative;
    }
    .nav-menu a:hover {
      color: var(--accent);
    }
    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--accent);
      transition: width 0.2s ease;
    }
    .nav-menu a:hover::after {
      width: 100%;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
      border: 1px solid transparent;
      white-space: nowrap;
      min-height: 42px;
    }
    .btn-primary {
      background-color: var(--accent);
      color: #FFF;
      box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--accent-hover);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
    }
    .btn-secondary {
      background-color: #FFF;
      color: var(--primary);
      border-color: var(--border-color);
    }
    .btn-secondary:hover {
      background-color: var(--bg-main);
      border-color: #CBD5E1;
      transform: translateY(-2px);
    }
    .btn-outline-white {
      background-color: transparent;
      color: #FFF;
      border-color: rgba(255, 255, 255, 0.3);
    }
    .btn-outline-white:hover {
      background-color: rgba(255, 255, 255, 0.1);
      border-color: #FFF;
    }
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 22px;
      cursor: pointer;
      color: var(--primary);
      padding: 8px;
    }

    /* Banner / Hero */
    .hero-section {
      background-color: #0B1120;
      color: #FFF;
      padding: 96px 0 108px;
      position: relative;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: linear-gradient(to right, rgba(11, 17, 32, 0.95) 40%, rgba(11, 17, 32, 0.65) 100%), url('/assets/images/87a2389a7feb0a25.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.9;
    }
    .hero-container {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 56px;
      align-items: center;
    }
    .hero-badge-wrap {
      display: flex;
      gap: 10px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background-color: rgba(37, 99, 235, 0.2);
      border: 1px solid rgba(96, 165, 250, 0.4);
      color: #93C5FD;
      font-size: 13px;
      font-weight: 600;
      padding: 5px 14px;
      border-radius: 20px;
    }
    .hero-h1 {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 22px;
      color: #FFFFFF;
    }
    .hero-h1 span {
      background: linear-gradient(120deg, #60A5FA 0%, #38BDF8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-intro {
      font-size: 16px;
      line-height: 1.8;
      color: #CBD5E1;
      margin-bottom: 32px;
      max-width: 620px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
    }
    .hero-status-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.12);
    }
    .hero-status-item .status-num {
      font-family: var(--font-mono);
      font-size: 24px;
      font-weight: 700;
      color: #38BDF8;
    }
    .hero-status-item .status-label {
      font-size: 13px;
      color: #94A3B8;
      margin-top: 4px;
    }

    /* Hero Form Card */
    .hero-card {
      background: rgba(15, 23, 42, 0.75);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 32px;
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    .hero-card-title {
      font-size: 20px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 8px;
    }
    .hero-card-sub {
      font-size: 13px;
      color: #94A3B8;
      margin-bottom: 24px;
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: #E2E8F0;
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      height: 44px;
      background-color: rgba(30, 41, 59, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: var(--radius-sm);
      color: #FFF;
      padding: 0 14px;
      font-size: 14px;
      transition: border-color 0.2s;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--accent);
      background-color: rgba(30, 41, 59, 1);
    }
    .form-control option {
      background-color: #0F172A;
      color: #FFF;
    }

    /* Grid Layouts */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    /* Architecture Block */
    .arch-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .arch-image-wrap {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      background-color: #FFF;
    }
    .arch-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .arch-item {
      display: flex;
      gap: 16px;
    }
    .arch-icon {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      border-radius: var(--radius-sm);
      background-color: var(--accent-soft);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 18px;
    }
    .arch-info h4 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .arch-info p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
    }

    /* Advantage Cards */
    .adv-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      transition: all 0.25s ease;
      position: relative;
    }
    .adv-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--card-shadow-hover);
      border-color: #93C5FD;
    }
    .adv-card::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 3px;
      background-color: var(--accent);
      transition: width 0.3s ease;
      border-radius: 0 0 0 var(--radius-md);
    }
    .adv-card:hover::after {
      width: 100%;
    }
    .adv-num {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 14px;
    }
    .adv-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .adv-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* Product Cards */
    .product-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .product-card:hover {
      box-shadow: var(--card-shadow-hover);
      transform: translateY(-3px);
      border-color: #CBD5E1;
    }
    .product-img-box {
      height: 220px;
      position: relative;
      overflow: hidden;
      background-color: #E2E8F0;
    }
    .product-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .product-card:hover .product-img-box img {
      transform: scale(1.04);
    }
    .product-status-tag {
      position: absolute;
      top: 14px;
      right: 14px;
      background-color: rgba(15, 23, 42, 0.85);
      color: #FFF;
      font-size: 12px;
      padding: 3px 10px;
      border-radius: var(--radius-sm);
      backdrop-filter: blur(4px);
    }
    .product-body {
      padding: 26px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .product-title {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .product-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 18px;
    }
    .product-specs {
      list-style: none;
      margin-bottom: 22px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }
    .product-specs li {
      font-size: 13px;
      color: var(--text-muted);
      display: flex;
      justify-content: space-between;
    }
    .product-specs li span:last-child {
      color: var(--text-main);
      font-weight: 600;
    }
    .product-action {
      margin-top: auto;
    }

    /* Technology Flow Section */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      margin-top: 40px;
    }
    .flow-step-item {
      background-color: #111827;
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
    }
    .flow-step-num {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background-color: var(--accent);
      color: #FFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .flow-step-title {
      font-size: 16px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 10px;
    }
    .flow-step-desc {
      font-size: 13px;
      color: #94A3B8;
      line-height: 1.65;
    }

    /* Scenario Cards */
    .scenario-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--card-shadow);
    }
    .scenario-img-box {
      height: 180px;
      position: relative;
    }
    .scenario-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .scenario-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }
    .scenario-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .scenario-desc {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .scenario-points {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .scenario-points li {
      font-size: 13px;
      color: var(--text-muted);
      position: relative;
      padding-left: 14px;
    }
    .scenario-points li::before {
      content: '•';
      color: var(--accent);
      position: absolute;
      left: 0;
      top: -1px;
      font-size: 16px;
    }

    /* Case Studies */
    .case-panel {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 48px;
      align-items: center;
    }
    .case-gallery-img {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }
    .case-title {
      font-size: 24px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }
    .case-quote {
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 24px;
      border-left: 3px solid var(--accent);
      padding-left: 16px;
      font-style: italic;
    }
    .case-stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .case-stat-val {
      font-family: var(--font-mono);
      font-size: 22px;
      font-weight: 700;
      color: var(--accent);
    }
    .case-stat-name {
      font-size: 12px;
      color: var(--text-muted);
      margin-top: 4px;
    }

    /* Metric Bar */
    .metrics-bar {
      background-color: var(--primary);
      border-radius: var(--radius-lg);
      padding: 44px 32px;
      color: #FFF;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
    }
    .metric-cell {
      text-align: center;
      position: relative;
    }
    .metric-cell:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 15%;
      height: 70%;
      width: 1px;
      background-color: rgba(255, 255, 255, 0.15);
    }
    .metric-data {
      font-family: var(--font-mono);
      font-size: 40px;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .metric-title {
      font-size: 14px;
      color: #CBD5E1;
      font-weight: 500;
    }

    /* Testimonials */
    .testimonial-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-text {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 16px;
    }
    .avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background-color: var(--accent-soft);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 15px;
    }
    .author-name {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-role {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Insights Articles */
    .insight-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      transition: all 0.2s ease;
    }
    .insight-card:hover {
      border-color: #93C5FD;
      transform: translateY(-2px);
    }
    .insight-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .insight-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .insight-summary {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.7;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .insight-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* FAQ Details */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-icon-arrow {
      width: 16px;
      height: 16px;
      border-right: 2px solid var(--text-muted);
      border-bottom: 2px solid var(--text-muted);
      transform: rotate(45deg);
      transition: transform 0.25s ease;
      margin-right: 6px;
    }
    .faq-item[open] .faq-icon-arrow {
      transform: rotate(-135deg);
    }
    .faq-content {
      padding: 0 24px 22px 24px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.8;
      border-top: 1px solid rgba(226, 232, 240, 0.6);
      margin-top: -6px;
      padding-top: 16px;
    }

    /* Final CTA / Contact Container */
    .cta-card-box {
      background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      color: #FFF;
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }
    .cta-left h3 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .cta-left p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.75;
      margin-bottom: 28px;
    }
    .cta-hotline {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .cta-hotline-num {
      font-family: var(--font-mono);
      font-size: 24px;
      font-weight: 800;
      color: #38BDF8;
    }
    .form-dark-box {
      background-color: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 30px;
    }

    /* Footer */
    .site-footer {
      background-color: #070B12;
      color: #94A3B8;
      padding: 80px 0 32px;
      font-size: 14px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 800;
      color: #FFF;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-col-h4 {
      font-size: 15px;
      font-weight: 700;
      color: #FFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a:hover {
      color: #60A5FA;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      color: #64748B;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
      }
      .flow-steps {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .metric-cell:nth-child(2)::after {
        display: none;
      }
      .case-panel {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
    }
    @media (max-width: 768px) {
      .meta-bar {
        display: none;
      }
      .nav-menu {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background-color: #FFF;
        padding: 24px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        align-items: flex-start;
      }
      .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .arch-content {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
      }
      .flow-steps {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: 1fr;
      }
      .metric-cell:not(:last-child)::after {
        display: none;
      }
      .cta-card-box {
        grid-template-columns: 1fr;
        padding: 36px 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }