/* roulang page: index */
:root {
      --bg-dark: #060913;
      --bg-deep: #0b1224;
      --bg-surface: rgba(15, 23, 42, 0.72);
      --bg-surface-hover: rgba(22, 34, 62, 0.85);
      --primary-blue: #1d63ff;
      --accent-cyan: #00e5ff;
      --accent-purple: #7000ff;
      --text-main: #f8fafc;
      --text-muted: #94a3b8;
      --text-dim: #64748b;
      --border-color: rgba(255, 255, 255, 0.09);
      --border-glow: rgba(0, 229, 255, 0.35);
      --glow-blue: 0 0 25px rgba(29, 99, 255, 0.35);
      --glow-cyan: 0 0 22px rgba(0, 229, 255, 0.32);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-dark);
      color: var(--text-main);
      font-family: var(--font-stack);
      line-height: 1.7;
    }
    body {
      background-color: var(--bg-dark);
      background-image: 
        radial-gradient(circle at 18% 12%, rgba(29, 99, 255, 0.14) 0%, transparent 45%),
        radial-gradient(circle at 85% 35%, rgba(112, 0, 255, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 50% 80%, rgba(0, 229, 255, 0.08) 0%, transparent 50%);
      background-attachment: fixed;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* Top Strip & Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(6, 9, 19, 0.88);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-color);
    }
    .top-meta-strip {
      background: rgba(11, 18, 36, 0.95);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 12px;
      color: var(--text-dim);
      padding: 6px 0;
    }
    .top-meta-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .meta-tag {
      color: var(--accent-cyan);
      background: rgba(0, 229, 255, 0.1);
      padding: 2px 8px;
      border-radius: 4px;
      margin-right: 12px;
      font-weight: 500;
    }
    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--text-main);
    }
    .brand-symbol {
      width: 38px;
      height: 38px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--glow-cyan);
    }
    .brand-symbol svg {
      width: 22px;
      height: 22px;
      fill: #fff;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-link {
      font-size: 14px;
      font-weight: 500;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--accent-cyan);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--accent-cyan), var(--primary-blue));
      transition: width 0.3s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 11px 24px;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      border: 1px solid transparent;
      gap: 8px;
      white-space: nowrap;
    }
    .btn-glow {
      background: linear-gradient(135deg, #1d63ff, #00c8e0);
      color: #ffffff;
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
    }
    .btn-glow:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 229, 255, 0.6);
      color: #fff;
    }
    .btn-outline {
      background: rgba(15, 23, 42, 0.5);
      border-color: rgba(0, 229, 255, 0.4);
      color: var(--accent-cyan);
      backdrop-filter: blur(8px);
    }
    .btn-outline:hover {
      background: rgba(0, 229, 255, 0.12);
      border-color: var(--accent-cyan);
      transform: translateY(-2px);
    }
    .menu-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-main);
      cursor: pointer;
      width: 44px;
      height: 44px;
      padding: 10px;
    }
    .menu-toggle svg {
      width: 24px;
      height: 24px;
      stroke: currentColor;
      fill: none;
    }

    /* Section Styling */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-alt {
      background: linear-gradient(180deg, rgba(11, 18, 36, 0.4) 0%, rgba(6, 9, 19, 0.7) 100%);
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .section-header {
      margin-bottom: 56px;
    }
    .section-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(29, 99, 255, 0.15);
      color: var(--accent-cyan);
      border: 1px solid rgba(0, 229, 255, 0.25);
      margin-bottom: 14px;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.5px;
      margin-bottom: 16px;
      background: linear-gradient(180deg, #ffffff 20%, #cbd5e1 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 820px;
    }

    /* Glass Cards */
    .glass-card {
      background: var(--bg-surface);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px;
      transition: all 0.35s ease;
      position: relative;
      overflow: hidden;
    }
    .glass-card:hover {
      border-color: rgba(0, 229, 255, 0.35);
      background: var(--bg-surface-hover);
      box-shadow: 0 12px 35px -10px rgba(0, 229, 255, 0.15);
      transform: translateY(-4px);
    }

    /* 1. Hero Section: Before / After 并置 */
    .hero-section {
      padding: 70px 0 90px;
      position: relative;
      background-image: linear-gradient(to bottom, rgba(6, 9, 19, 0.78), rgba(6, 9, 19, 0.94)), url('/assets/images/47c8f21d34c75429.jpg');
      background-size: cover;
      background-position: center;
    }
    .hero-intro {
      text-align: center;
      max-width: 920px;
      margin: 0 auto 52px;
    }
    .hero-title {
      font-size: 44px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -1px;
    }
    .hero-title .highlight {
      background: linear-gradient(90deg, #00e5ff 0%, #1d63ff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-summary {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.85;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 18px;
    }
    .hero-contrast-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      margin-top: 20px;
    }
    .contrast-panel {
      padding: 32px;
      border-radius: var(--radius-lg);
      backdrop-filter: blur(14px);
      position: relative;
    }
    .contrast-before {
      background: rgba(30, 20, 30, 0.6);
      border: 1px solid rgba(239, 68, 68, 0.25);
    }
    .contrast-after {
      background: rgba(13, 29, 56, 0.75);
      border: 1px solid rgba(0, 229, 255, 0.45);
      box-shadow: 0 10px 30px rgba(0, 229, 255, 0.12);
    }
    .contrast-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 4px;
      margin-bottom: 18px;
    }
    .tag-before {
      background: rgba(239, 68, 68, 0.2);
      color: #f87171;
      border: 1px solid rgba(239, 68, 68, 0.35);
    }
    .tag-after {
      background: rgba(0, 229, 255, 0.2);
      color: #38bdf8;
      border: 1px solid rgba(0, 229, 255, 0.5);
    }
    .contrast-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
      font-size: 14px;
    }
    .contrast-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      line-height: 1.6;
    }
    .contrast-before li { color: #cbd5e1; }
    .contrast-after li { color: #f1f5f9; }

    /* 2. Metrics Strip */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .metric-card {
      text-align: left;
      padding: 24px;
      border-radius: var(--radius-md);
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid var(--border-color);
    }
    .metric-num {
      font-size: 38px;
      font-weight: 800;
      color: var(--accent-cyan);
      line-height: 1.1;
      margin-bottom: 6px;
      letter-spacing: -0.5px;
    }
    .metric-title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 3. Product Architecture */
    .arch-grid {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .arch-spec-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 24px;
    }
    .spec-item {
      display: flex;
      gap: 16px;
      align-items: flex-start;
    }
    .spec-icon {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      background: rgba(29, 99, 255, 0.2);
      border: 1px solid var(--primary-blue);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      color: var(--accent-cyan);
    }
    .arch-preview {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid rgba(0, 229, 255, 0.3);
      box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
    }

    /* 4. Capabilities Grid (6 Cards) */
    .capability-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .cap-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .cap-icon-box {
      width: 44px;
      height: 44px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(29, 99, 255, 0.25), rgba(0, 229, 255, 0.15));
      border: 1px solid rgba(0, 229, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
    }
    .cap-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
    }
    .cap-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 5. Featured Modules (3 Column Enhancement) */
    .modules-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .module-card {
      display: flex;
      flex-direction: column;
      height: 100%;
    }
    .module-img-wrap {
      height: 170px;
      border-radius: 10px;
      overflow: hidden;
      margin-bottom: 20px;
      border: 1px solid rgba(255, 255, 255, 0.1);
    }
    .module-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .module-card:hover .module-img-wrap img {
      transform: scale(1.05);
    }
    .module-badge-row {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
    }
    .pill-badge {
      font-size: 11px;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(255, 255, 255, 0.08);
      color: #93c5fd;
    }
    .module-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .module-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-grow: 1;
    }
    .module-points {
      list-style: none;
      font-size: 13px;
      color: var(--text-dim);
      display: flex;
      flex-direction: column;
      gap: 8px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 16px;
    }

    /* 6. Comparison Table */
    .table-container {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      background: var(--bg-surface);
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .comp-table th, .comp-table td {
      padding: 18px 24px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .comp-table th {
      background: rgba(11, 18, 36, 0.9);
      color: var(--text-main);
      font-weight: 700;
    }
    .comp-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }
    .comp-cell-sys {
      color: var(--accent-cyan);
      font-weight: 600;
    }

    /* 7. Deep Tech Operations Hub */
    .tech-hub-box {
      border: 1px solid rgba(0, 229, 255, 0.25);
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, rgba(13, 23, 48, 0.8) 0%, rgba(6, 9, 19, 0.95) 100%);
      padding: 44px;
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .tech-code-panel {
      background: #040711;
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      padding: 20px;
      font-family: monospace;
      font-size: 13px;
      color: #7dd3fc;
      line-height: 1.7;
    }
    .code-comment { color: #64748b; }
    .code-keyword { color: #f472b6; }

    /* 8. Roadmap & Milestone */
    .timeline-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .timeline-flow::before {
      content: '';
      position: absolute;
      top: 36px;
      left: 10%;
      right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
      z-index: 1;
    }
    .timeline-step {
      position: relative;
      z-index: 2;
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px 20px;
    }
    .step-marker {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-deep);
      border: 2px solid var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--accent-cyan);
      margin-bottom: 20px;
      box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
    }

    /* 9. Client Stories */
    .story-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .story-card {
      display: grid;
      grid-template-columns: 160px 1fr;
      gap: 20px;
      padding: 24px;
    }
    .story-thumb {
      border-radius: 8px;
      overflow: hidden;
      height: 100%;
      min-height: 160px;
    }
    .story-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-body h4 {
      font-size: 18px;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .story-stat {
      color: var(--accent-cyan);
      font-weight: 600;
      font-size: 13px;
      margin-top: 10px;
    }

    /* 10. Reviews Grid */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .review-quote {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 20px;
      position: relative;
    }
    .reviewer-meta {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .reviewer-avatar {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: rgba(29, 99, 255, 0.3);
      border: 1px solid var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
    }
    .reviewer-info h5 {
      font-size: 15px;
      color: var(--text-main);
    }
    .reviewer-info p {
      font-size: 12px;
      color: var(--text-dim);
    }

    /* 11. Insights & Digest */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .digest-card {
      padding: 24px;
      display: flex;
      flex-direction: column;
    }
    .digest-date {
      font-size: 12px;
      color: var(--accent-cyan);
      margin-bottom: 8px;
    }
    .digest-title {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .digest-text {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;;
      margin-bottom: 16px;
      flex-grow: 1;
    }
    .digest-link {
      font-size: 13px;
      color: var(--accent-cyan);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 12. Security Assurance */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .sec-card {
      padding: 26px 20px;
      text-align: center;
    }
    .sec-icon {
      width: 52px;
      height: 52px;
      margin: 0 auto 16px;
      border-radius: 12px;
      background: rgba(0, 229, 255, 0.12);
      border: 1px solid rgba(0, 229, 255, 0.3);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
    }
    .sec-card h4 {
      font-size: 16px;
      margin-bottom: 8px;
    }
    .sec-card p {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 13. FAQ Accordion */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: var(--bg-surface);
      overflow: hidden;
      transition: border-color 0.3s;
    }
    .faq-item[open] {
      border-color: rgba(0, 229, 255, 0.4);
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      user-select: none;
      list-style: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-summary::after {
      content: '+';
      font-size: 20px;
      color: var(--accent-cyan);
      transition: transform 0.25s;
    }
    .faq-item[open] .faq-summary::after {
      transform: rotate(45deg);
    }
    .faq-content {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 14px;
    }

    /* 14. Lead CTA Block */
    .cta-banner {
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 255, 0.15) 0%, transparent 60%),
                  linear-gradient(135deg, rgba(13, 23, 48, 0.95) 0%, rgba(6, 9, 19, 0.98) 100%);
      border: 1px solid rgba(0, 229, 255, 0.35);
      border-radius: var(--radius-lg);
      padding: 56px 48px;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    }
    .cta-layout {
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .cta-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .form-group-full {
      grid-column: span 2;
    }
    .form-input {
      width: 100%;
      background: rgba(6, 9, 19, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 14px;
      color: #fff;
      outline: none;
      transition: border-color 0.25s;
    }
    .form-input:focus {
      border-color: var(--accent-cyan);
      box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
    }

    /* Footer */
    .site-footer {
      background: #04060d;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 64px 0 32px;
      font-size: 13px;
      color: var(--text-dim);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-col h5 {
      color: var(--text-main);
      font-size: 15px;
      margin-bottom: 18px;
      font-weight: 600;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero-contrast-grid, .arch-grid, .cta-layout, .tech-hub-box {
        grid-template-columns: 1fr;
      }
      .capability-grid, .modules-grid, .reviews-grid, .insights-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-grid, .security-grid, .timeline-flow {
        grid-template-columns: repeat(2, 1fr);
      }
      .timeline-flow::before { display: none; }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .top-meta-strip { display: none; }
      .menu-toggle { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(6, 9, 19, 0.98);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 24px;
        gap: 18px;
      }
      .nav-links.open { display: flex; }
      .hero-title { font-size: 30px; }
      .section-title { font-size: 26px; }
      .capability-grid, .modules-grid, .reviews-grid, .insights-grid, .story-grid, .metrics-grid, .security-grid, .timeline-flow {
        grid-template-columns: 1fr;
      }
      .story-card {
        grid-template-columns: 1fr;
      }
      .story-thumb {
        height: 180px;
      }
      .cta-form {
        grid-template-columns: 1fr;
      }
      .form-group-full {
        grid-column: span 1;
      }
      .cta-banner {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }