/* roulang page: index */
:root {
      --primary-dark: #0C4A45;
      --primary: #10B981;
      --primary-hover: #059669;
      --secondary-dark: #0A1926;
      --secondary-light: #0F2942;
      --accent: #F59E0B;
      --bg-light: #F8FAFC;
      --bg-white: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-light: #64748B;
      --border-color: #E2E8F0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.07);
      --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.08);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --container-max: 1280px;
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-muted);
      background-color: var(--bg-light);
      line-height: 1.65;
      font-size: 15px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.25s ease;
    }

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

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

    /* Top Bar */
    .top-bar {
      background: var(--secondary-dark);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .top-bar-badges {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .top-bar-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
    }

    /* Main Nav */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #fff;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 20px;
      box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-weight: 600;
      font-size: 15px;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s ease;
    }
    .nav-link:hover::after, .nav-link.active::after {
      width: 100%;
    }
    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      background: var(--primary-dark);
      color: #fff;
      font-weight: 600;
      border-radius: 9999px;
      font-size: 14px;
      box-shadow: 0 4px 12px rgba(12, 74, 69, 0.25);
    }
    .nav-cta:hover {
      background: var(--primary);
      transform: translateY(-1px);
    }

    /* Common Section Styles */
    section {
      padding: 96px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 56px;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      padding: 6px 14px;
      background: rgba(16, 185, 129, 0.12);
      color: var(--primary-dark);
      font-weight: 700;
      font-size: 13px;
      letter-spacing: 1px;
      border-radius: 9999px;
      margin-bottom: 14px;
      text-transform: uppercase;
    }
    .section-title {
      font-size: 34px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-light);
      max-width: 780px;
      margin: 0 auto;
      line-height: 1.7;
    }

    /* 1. Hero Section (Launch + Countdown + Feature Ring) */
    .hero-section {
      background: linear-gradient(180deg, #FFFFFF 0%, #F0FDF4 100%);
      padding: 70px 0 100px;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid #E2E8F0;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-badge-live {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ECFDF5;
      border: 1px solid #A7F3D0;
      border-radius: 9999px;
      color: #065F46;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-badge-dot {
      width: 8px;
      height: 8px;
      background: var(--primary);
      border-radius: 50%;
      animation: pulseDot 2s infinite;
    }
    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.4; transform: scale(1.2); }
    }
    .hero-title {
      font-size: 44px;
      line-height: 1.2;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-title span {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-lead {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 32px;
      line-height: 1.75;
    }
    .hero-card {
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: 0 20px 40px -10px rgba(12, 74, 69, 0.12);
      border: 1px solid rgba(16, 185, 129, 0.2);
      position: relative;
    }
    .launch-panel-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 24px;
      border-bottom: 1px dashed var(--border-color);
      padding-bottom: 16px;
    }
    .countdown-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-bottom: 24px;
    }
    .countdown-box {
      background: #F8FAFC;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      text-align: center;
    }
    .countdown-num {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1;
      margin-bottom: 4px;
    }
    .countdown-label {
      font-size: 11px;
      font-weight: 600;
      color: var(--text-light);
      text-transform: uppercase;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      background: linear-gradient(135deg, var(--primary-dark), #115E59);
      color: #FFFFFF;
      font-weight: 700;
      border-radius: var(--radius-md);
      box-shadow: 0 4px 14px rgba(12, 74, 69, 0.3);
      border: none;
      cursor: pointer;
    }
    .btn-primary:hover {
      background: var(--primary);
      box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
      transform: translateY(-2px);
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 28px;
      background: #FFFFFF;
      color: var(--primary-dark);
      font-weight: 700;
      border-radius: var(--radius-md);
      border: 1.5px solid var(--border-color);
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: #F0FDF4;
    }

    /* 2. Platform & Base */
    .bg-white { background-color: var(--bg-white); }
    .bg-slate { background-color: #F1F5F9; }
    .bg-dark { background-color: var(--secondary-dark); color: #F8FAFC; }

    .split-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .platform-media {
      position: relative;
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-xl);
    }
    .platform-media img {
      width: 100%;
      height: 420px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .platform-media:hover img {
      transform: scale(1.04);
    }
    .media-floating-badge {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      background: rgba(15, 23, 42, 0.88);
      backdrop-filter: blur(8px);
      padding: 16px 20px;
      border-radius: var(--radius-md);
      color: #fff;
      border: 1px solid rgba(255,255,255,0.15);
    }

    /* 3. Core Advantages (6 Grid) */
    .grid-3-col {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .feature-card {
      background: #FFFFFF;
      padding: 32px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
    }
    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
      border-color: rgba(16, 185, 129, 0.4);
    }
    .feature-icon-box {
      width: 52px;
      height: 52px;
      border-radius: var(--radius-md);
      background: #ECFDF5;
      color: var(--primary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 4. Products & Pipeline */
    .pipeline-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .pipeline-card:hover {
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
    }
    .pipeline-card-img {
      height: 210px;
      overflow: hidden;
      position: relative;
    }
    .pipeline-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .pipeline-tag-float {
      position: absolute;
      top: 14px;
      right: 14px;
      background: var(--primary-dark);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 9999px;
    }
    .pipeline-card-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .pipeline-card-body h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .pipeline-meta {
      display: flex;
      gap: 12px;
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 14px;
    }
    .pipeline-card-body p {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex: 1;
    }
    .card-footer-action {
      margin-top: auto;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .btn-link {
      font-weight: 700;
      color: var(--primary-dark);
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
    }
    .btn-link:hover {
      color: var(--primary);
      gap: 10px;
    }

    /* 5. Deep Dark Philosophy Section */
    .philosophy-wrap {
      background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.15), transparent 50%), var(--secondary-dark);
      border-top: 1px solid rgba(255,255,255,0.06);
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .philosophy-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .philosophy-text h2 {
      font-size: 36px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 24px;
      line-height: 1.3;
    }
    .philosophy-text p {
      color: #94A3B8;
      font-size: 16px;
      line-height: 1.8;
      margin-bottom: 20px;
    }
    .ethics-list {
      list-style: none;
      display: grid;
      gap: 16px;
      margin-top: 28px;
    }
    .ethics-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      color: #E2E8F0;
    }
    .ethics-bullet {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: var(--primary);
      color: var(--secondary-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 900;
      margin-top: 3px;
      flex-shrink: 0;
    }

    /* 6. Case Stories (Interleaved) */
    .story-block {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 64px;
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      padding: 36px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .story-block:last-child {
      margin-bottom: 0;
    }
    .story-block.reverse {
      grid-template-columns: 1.1fr 1fr;
    }
    .story-img {
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 320px;
    }
    .story-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .story-body h3 {
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
    }
    .story-tag {
      font-size: 13px;
      font-weight: 700;
      color: var(--primary-dark);
      background: #ECFDF5;
      padding: 4px 12px;
      border-radius: 6px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .story-highlight {
      background: #F8FAFC;
      border-left: 3px solid var(--primary);
      padding: 14px 18px;
      margin-top: 18px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    }

    /* 7. Key Metrics Bar */
    .metrics-bar-section {
      background: linear-gradient(135deg, var(--primary-dark), #0A2F2C);
      color: #FFFFFF;
      padding: 64px 0;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      text-align: center;
    }
    .metric-value {
      font-size: 44px;
      font-weight: 900;
      color: #34D399;
      line-height: 1.1;
      margin-bottom: 8px;
      font-variant-numeric: tabular-nums;
    }
    .metric-label {
      font-size: 15px;
      font-weight: 600;
      color: #E2E8F0;
      letter-spacing: 0.5px;
    }

    /* 8. Testimonials */
    .testimonial-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testimonial-stars {
      color: var(--accent);
      margin-bottom: 16px;
      font-size: 16px;
      letter-spacing: 2px;
    }
    .testimonial-quote {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 24px;
      font-style: italic;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 14px;
      border-top: 1px solid #F1F5F9;
      padding-top: 16px;
    }
    .author-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #E2E8F0;
      overflow: hidden;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-dark);
      background: #D1FAE5;
    }
    .author-info h4 {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
    }
    .author-info span {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 9. News & Insights */
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .news-card:hover {
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
    }
    .news-img {
      height: 190px;
      overflow: hidden;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-date-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .news-content h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }

    /* 10. FAQ Accordion (CSS Native Checkbox) */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }
    .faq-input {
      display: none;
    }
    .faq-label {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 24px;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
      color: var(--text-main);
      user-select: none;
    }
    .faq-icon {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #F1F5F9;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--text-light);
      transition: transform 0.3s ease, background 0.3s ease;
    }
    .faq-body {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 24px;
      background: #F8FAFC;
    }
    .faq-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
      padding-bottom: 20px;
    }
    .faq-input:checked ~ .faq-label {
      background: #F0FDF4;
      color: var(--primary-dark);
    }
    .faq-input:checked ~ .faq-label .faq-icon {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }
    .faq-input:checked ~ .faq-body {
      max-height: 200px;
      padding-top: 16px;
    }

    /* 11. Target Audience / Scenarios (4 Grid) */
    .grid-4-col {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .audience-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 28px 22px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .audience-icon {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: #F0FDF4;
      color: var(--primary-dark);
      font-size: 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 18px;
    }
    .audience-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .audience-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 12. Final Action CTA */
    .cta-section {
      background: linear-gradient(135deg, #0A1926 0%, #0C4A45 100%);
      color: #FFFFFF;
      padding: 80px 0;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 56px;
      align-items: center;
    }
    .cta-text h2 {
      font-size: 36px;
      font-weight: 900;
      line-height: 1.3;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .cta-text p {
      font-size: 16px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .cta-form-card {
      background: #FFFFFF;
      border-radius: var(--radius-xl);
      padding: 36px;
      box-shadow: 0 25px 50px -12px rgba(0,0,0,0.35);
      color: var(--text-main);
    }
    .cta-form-card h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
      color: var(--primary-dark);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      margin-bottom: 6px;
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-family: inherit;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
    }
    .form-btn {
      width: 100%;
      padding: 14px;
      background: var(--primary-dark);
      color: #fff;
      font-weight: 700;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      font-size: 15px;
      transition: background 0.25s ease;
      margin-top: 8px;
    }
    .form-btn:hover {
      background: var(--primary);
    }

    /* Footer */
    .site-footer {
      background: #060D13;
      color: #94A3B8;
      padding: 80px 0 32px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 14px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
      gap: 48px;
      margin-bottom: 56px;
    }
    .footer-brand h4 {
      font-size: 20px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.75;
      color: #64748B;
    }
    .footer-col h5 {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      display: grid;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.06);
      padding-top: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 13px;
    }

    /* Mobile Drawer */
    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--primary-dark);
      cursor: pointer;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .grid-3-col { grid-template-columns: repeat(2, 1fr); }
      .grid-4-col { grid-template-columns: repeat(2, 1fr); }
      .hero-grid, .split-layout, .philosophy-grid, .cta-grid { grid-template-columns: 1fr; gap: 40px; }
      .story-block, .story-block.reverse { grid-template-columns: 1fr; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle { display: block; }
      .nav-menu { display: none; }
      .top-bar { display: none; }
      .grid-3-col { grid-template-columns: 1fr; }
      .grid-4-col { grid-template-columns: 1fr; }
      .hero-title { font-size: 32px; }
      .section-title { font-size: 26px; }
      .countdown-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr; }
      section { padding: 60px 0; }
    }