:root {
      --primary: #0284c7;
      --primary-hover: #0369a1;
      --primary-light: #e0f2fe;
      --secondary: #0d9488;
      --accent: #f59e0b;
      --bg-base: #f8fafc;
      --bg-surface: #ffffff;
      --bg-subtle: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --border-focus: #38bdf8;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
      --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.1);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 18px;
      --container-max: 1200px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }
    html {
      scroll-behavior: smooth;
      font-size: 16px;
      background-color: var(--bg-base);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      color: var(--text-main);
      background-color: var(--bg-base);
      line-height: 1.6;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
      overflow-x: hidden;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }
    .brand-wrap .ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
      object-fit: contain;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }
    .nav-links li a {
      text-decoration: none;
      color: var(--text-muted);
      font-weight: 500;
      font-size: 0.95rem;
      padding: 8px 12px;
      border-radius: var(--radius-sm);
      transition: all 0.2s ease;
      display: inline-block;
    }
    .nav-links li a:hover,
    .nav-links li a.active {
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .nav-cta-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-sm);
      text-decoration: none;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, #0ea5e9 100%);
      color: #ffffff;
      box-shadow: 0 2px 6px rgba(2, 132, 199, 0.35);
    }
    .btn-primary:hover {
      background: linear-gradient(135deg, var(--primary-hover) 0%, #0284c7 100%);
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(2, 132, 199, 0.45);
    }
    .btn-secondary {
      background: #ffffff;
      color: var(--primary);
      border-color: #bae6fd;
    }
    .btn-secondary:hover {
      background: var(--primary-light);
      border-color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-accent {
      background: #f59e0b;
      color: #ffffff;
    }
    .btn-accent:hover {
      background: #d97706;
      transform: translateY(-2px);
    }
    .btn-glow {
      position: relative;
      animation: pulseGlow 2.5s infinite alternate;
    }
    @keyframes pulseGlow {
      0% { box-shadow: 0 0 0 0 rgba(2, 132, 199, 0.4); }
      100% { box-shadow: 0 0 0 8px rgba(2, 132, 199, 0); }
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
    }
    .nav-toggle span {
      display: block;
      width: 24px;
      height: 2.5px;
      background: var(--text-main);
      margin: 5px 0;
      border-radius: 2px;
      transition: all 0.3s;
    }
    .section-wrap {
      padding: 70px 0;
      position: relative;
    }
    .section-wrap-subtle {
      background-color: var(--bg-subtle);
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }
    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px auto;
    }
    .badge-sub {
      display: inline-block;
      padding: 4px 12px;
      background-color: var(--primary-light);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 999px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 14px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .hero-section {
      padding: 90px 0 80px 0;
      background: radial-gradient(circle at 80% 20%, rgba(56, 189, 248, 0.12), transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(13, 148, 136, 0.08), transparent 45%),
                  linear-gradient(180deg, #ffffff 0%, var(--bg-base) 100%);
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .hero-content {
      text-align: center;
      max-width: 920px;
      margin: 0 auto;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid #bae6fd;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }
    .hero-tag::before {
      content: "";
      width: 8px;
      height: 8px;
      background-color: var(--secondary);
      border-radius: 50%;
      display: inline-block;
    }
    .hero-title {
      font-size: 2.8rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      letter-spacing: -1px;
      margin-bottom: 20px;
    }
    .hero-title span {
      background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 50%, #0d9488 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.2rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }
    .hero-action-box {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-bottom: 40px;
    }
    .btn-hero-primary {
      padding: 14px 34px;
      font-size: 1.1rem;
      font-weight: 700;
      border-radius: 8px;
    }
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 900px;
      margin: 40px auto 0 auto;
      padding-top: 30px;
      border-top: 1px dashed var(--border-color);
    }
    .hero-stat-card {
      background: rgba(255, 255, 255, 0.85);
      padding: 16px 12px;
      border-radius: var(--radius-md);
      border: 1px solid #e2e8f0;
      text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .hero-stat-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
    }
    .hero-stat-card .num {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--primary);
      display: block;
      margin-bottom: 4px;
    }
    .hero-stat-card .label {
      font-size: 0.85rem;
      color: var(--text-light);
      font-weight: 500;
    }
    .model-pills-wrap {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      margin-top: 24px;
    }
    .model-pill {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 4px 10px;
      border-radius: 6px;
      font-size: 0.8rem;
      color: var(--text-muted);
      font-weight: 500;
      transition: all 0.2s ease;
    }
    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      background-color: var(--primary-light);
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }
    .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .card-title {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
      flex-grow: 1;
    }
    .card-meta {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px solid var(--border-color);
      font-size: 0.85rem;
      color: var(--primary);
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .banner-media-box {
      margin: 40px auto 0 auto;
      max-width: 980px;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-md);
      border: 1px solid var(--border-color);
      background: #ffffff;
    }
    .banner-media-box img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: cover;
    }
    .media-card-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 30px;
    }
    .media-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s ease;
    }
    .media-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .media-card .img-container {
      width: 100%;
      height: 220px;
      background-color: #e2e8f0;
      overflow: hidden;
    }
    .media-card .img-container img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.3s ease;
    }
    .media-card:hover .img-container img {
      transform: scale(1.03);
    }
    .media-card .info-area {
      padding: 20px;
    }
    .media-card .info-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .media-card .info-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .rating-banner {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 36px 40px;
      margin-bottom: 36px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      box-shadow: var(--shadow-lg);
    }
    .rating-content h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 8px;
    }
    .rating-content p {
      font-size: 0.95rem;
      color: #94a3b8;
      max-width: 600px;
    }
    .rating-score-box {
      text-align: right;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .stars {
      color: #f59e0b;
      font-size: 1.6rem;
      letter-spacing: 2px;
    }
    .score-number {
      font-size: 3rem;
      font-weight: 900;
      line-height: 1;
      color: #38bdf8;
    }
    .score-label {
      font-size: 0.85rem;
      color: #cbd5e1;
    }
    .table-container {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 680px;
    }
    .compare-table th, 
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }
    .compare-table th {
      background-color: #f8fafc;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table th:nth-child(2) {
      background-color: #f0f9ff;
      color: var(--primary);
    }
    .compare-table td:nth-child(2) {
      background-color: rgba(240, 249, 255, 0.4);
      font-weight: 600;
      color: #0369a1;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .token-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
    }
    .token-card.highlight {
      border: 2px solid var(--primary);
      box-shadow: var(--shadow-md);
    }
    .token-card .model-type {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .token-card .price-row {
      display: flex;
      align-items: baseline;
      gap: 6px;
      margin: 12px 0;
    }
    .token-card .price-now {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary);
    }
    .token-card .price-official {
      font-size: 0.9rem;
      color: var(--text-light);
      text-decoration: line-through;
    }
    .token-card .feature-list {
      list-style: none;
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .token-card .feature-list li {
      margin-bottom: 8px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      position: relative;
    }
    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: #bae6fd;
      line-height: 1;
      margin-bottom: 12px;
    }
    .step-card h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text-main);
    }
    .step-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.5;
    }
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 900px;
      margin: 0 auto;
    }
    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.active {
      border-color: var(--primary);
    }
    .faq-question {
      width: 100%;
      text-align: left;
      padding: 18px 22px;
      background: none;
      border: none;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background-color 0.2s;
    }
    .faq-question:hover {
      background-color: var(--bg-base);
    }
    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--primary);
      transition: transform 0.3s ease;
    }
    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
      background-color: #fafbfc;
    }
    .faq-answer-inner {
      padding: 0 22px 18px 22px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }
    .testi-content {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: italic;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border-color);
      padding-top: 14px;
    }
    .testi-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .testi-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .testi-info p {
      font-size: 0.8rem;
      color: var(--text-light);
    }
    .form-section-layout {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }
    .contact-info-panel h4 {
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 14px;
    }
    .contact-info-panel p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 24px;
    }
    .contact-detail-list {
      list-style: none;
      margin-bottom: 24px;
    }
    .contact-detail-list li {
      font-size: 0.92rem;
      color: var(--text-main);
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .qr-box-wrap {
      display: inline-block;
      padding: 10px;
      background: var(--bg-base);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-align: center;
    }
    .qr-box-wrap img {
      width: 130px;
      height: 130px;
      display: block;
      margin-bottom: 6px;
    }
    .qr-box-wrap span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .custom-form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-label {
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      font-size: 0.95rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background-color: var(--bg-base);
      color: var(--text-main);
      transition: border-color 0.2s;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background-color: #ffffff;
    }
    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }
    .article-link-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 20px;
    }
    .article-item-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 16px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      text-decoration: none;
      transition: all 0.2s ease;
    }
    .article-item-card:hover {
      border-color: var(--primary);
      background-color: var(--primary-light);
      transform: translateX(4px);
    }
    .article-item-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .article-item-tag {
      font-size: 0.8rem;
      color: var(--primary);
      font-weight: 600;
      white-space: nowrap;
    }
    .footer-wrap {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px 0;
      border-top: 1px solid #1e293b;
      margin-top: auto;
    }
    .footer-main-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }
    .footer-col h4 {
      color: #f8fafc;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 16px;
      color: #94a3b8;
    }
    .footer-links-list {
      list-style: none;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-links-list li a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.9rem;
      transition: color 0.2s;
    }
    .footer-links-list li a:hover {
      color: #38bdf8;
    }
    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-bottom: 24px;
    }
    .friend-links-title {
      font-size: 0.85rem;
      font-weight: 700;
      color: #cbd5e1;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .friend-links-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }
    .friend-links-row a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 0.85rem;
      transition: color 0.2s;
    }
    .friend-links-row a:hover {
      color: #38bdf8;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 0.85rem;
      color: #64748b;
    }
    .floating-widget {
      position: fixed;
      right: 24px;
      bottom: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      z-index: 990;
    }
    .float-btn {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: #ffffff;
      color: var(--text-main);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.1rem;
      transition: all 0.2s ease;
      text-decoration: none;
    }
    .float-btn:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }
    .float-qr-modal {
      position: absolute;
      right: 54px;
      bottom: 0;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 12px;
      box-shadow: var(--shadow-lg);
      display: none;
      width: 160px;
      text-align: center;
    }
    .float-qr-modal img {
      width: 100%;
      height: auto;
      border-radius: 4px;
      display: block;
      margin-bottom: 6px;
    }
    .float-qr-modal span {
      font-size: 0.75rem;
      color: var(--text-muted);
      display: block;
    }
    .float-btn.active + .float-qr-modal {
      display: block;
    }
    @media (max-width: 1024px) {
      .grid-3, .testimonials-grid, .token-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-4, .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-main-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .nav-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 72px;
        left: 0;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        padding: 16px 20px;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 14px;
      }
      .nav-cta-group {
        display: none;
      }
      .hero-title {
        font-size: 2rem;
      }
      .hero-desc {
        font-size: 1rem;
      }
      .grid-3, .grid-2, .grid-4, .testimonials-grid, .token-grid, .step-grid, .media-card-grid {
        grid-template-columns: 1fr;
      }
      .form-section-layout {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .rating-banner {
        flex-direction: column;
        align-items: flex-start;
      }
      .rating-score-box {
        text-align: left;
      }
      .footer-main-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
    }