/* CSS Variables: Vibrant Fresh Green Theme */
    :root {
      --primary-color: #059669;
      --primary-hover: #047857;
      --primary-light: #ecfdf5;
      --accent-color: #10b981;
      --accent-bright: #34d399;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --bg-card: #ffffff;
      --bg-accent: #f0fdf4;
      --border-color: #e2e8f0;
      --border-green: #a7f3d0;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 6px -1px rgba(5,150,105,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
      --shadow-lg: 0 10px 25px -5px rgba(5,150,105,0.12), 0 8px 10px -6px rgba(0,0,0,0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --container-max-width: 1200px;
    }

    /* Reset & Global Base */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: var(--primary-color);
      text-decoration: none;
      transition: color 0.2s ease, opacity 0.2s ease;
    }
    a:hover {
      color: var(--primary-hover);
    }

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

    ul, ol {
      list-style: none;
    }

    /* Standard Outer Container (Unified Across Header, Main, Footer) */
    .container {
      width: 100%;
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* Typography Utilities */
    .section-title-wrap {
      text-align: center;
      margin-bottom: 2.5rem;
    }
    .section-badge {
      display: inline-block;
      padding: 0.25rem 0.85rem;
      background-color: var(--primary-light);
      color: var(--primary-color);
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 50px;
      border: 1px solid var(--border-green);
      margin-bottom: 0.5rem;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.5rem;
      line-height: 1.3;
    }
    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto;
    }

    /* Global Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.75rem 1.6rem;
      font-size: 0.95rem;
      font-weight: 600;
      border-radius: var(--radius-md);
      transition: all 0.25s ease;
      cursor: pointer;
      border: none;
      outline: none;
      text-align: center;
    }
    .btn-primary {
      background-color: var(--primary-color);
      color: #ffffff !important;
      box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(5, 150, 105, 0.35);
    }
    .btn-secondary {
      background-color: var(--primary-light);
      color: var(--primary-color) !important;
      border: 1px solid var(--border-green);
    }
    .btn-secondary:hover {
      background-color: #d1fae5;
      transform: translateY(-2px);
    }
    .btn-outline {
      background-color: transparent;
      color: var(--text-main) !important;
      border: 1px solid var(--border-color);
    }
    .btn-outline:hover {
      border-color: var(--primary-color);
      color: var(--primary-color) !important;
      background-color: var(--bg-white);
    }

    /* SECTION LAYOUT BASE */
    .section-block {
      padding: 4.5rem 0;
      border-bottom: 1px solid var(--border-color);
    }
    .section-block:nth-child(even) {
      background-color: var(--bg-white);
    }
    .section-block:nth-child(odd) {
      background-color: var(--bg-main);
    }

    /* 1. Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(8px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }
    .brand-logo-area {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .ai-page-logo {
      height: 40px;
      width: auto;
    }
    .brand-name {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--primary-color);
      letter-spacing: -0.5px;
    }

    /* REQUIREMENT: .nav-links gap must be set to 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; 
      margin: 0;
      padding: 0;
    }
    .nav-links li {
      display: inline-block;
    }
    .nav-links a {
      display: block;
      padding: 0.4rem 0.65rem;
      font-size: 0.88rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: var(--radius-sm);
      transition: background-color 0.2s ease, color 0.2s ease;
    }
    .nav-links a:hover {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }
    .nav-links .ai-page-home-link {
      color: var(--primary-color);
      font-weight: 700;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
      padding: 0.5rem;
    }

    /* 2. Hero First Screen (STRICT REQUIREMENT: NO IMAGES AT ALL) */
    .hero-section {
      background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 50%, #e6f4ea 100%);
      padding: 5rem 0 4.5rem;
      text-align: center;
      position: relative;
      overflow: hidden;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-section::before {
      content: "";
      position: absolute;
      top: -100px;
      right: -100px;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(16,185,129,0.12) 0%, rgba(255,255,255,0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-section::after {
      content: "";
      position: absolute;
      bottom: -150px;
      left: -100px;
      width: 450px;
      height: 450px;
      background: radial-gradient(circle, rgba(5,150,105,0.08) 0%, rgba(255,255,255,0) 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-content-box {
      max-width: 880px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      padding: 0.4rem 1rem;
      background-color: var(--bg-white);
      border: 1px solid var(--border-green);
      border-radius: 50px;
      font-size: 0.88rem;
      color: var(--primary-color);
      font-weight: 600;
      margin-bottom: 1.5rem;
      box-shadow: var(--shadow-sm);
    }
    /* H1改写 requirement: <= 20 chars */
    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 1.25rem;
      letter-spacing: -0.5px;
    }
    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin-bottom: 2rem;
      line-height: 1.6;
    }
    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
      margin-bottom: 3rem;
    }
    .hero-cta-btn-main {
      padding: 0.9rem 2.2rem;
      font-size: 1.05rem;
      background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    }

    /* Key Statistics / Highlights Data Grid inside Hero Footer */
    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.25rem;
      background-color: var(--bg-white);
      padding: 1.5rem;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .stat-item {
      text-align: center;
      padding: 0.5rem;
    }
    .stat-num {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-color);
      line-height: 1.1;
      margin-bottom: 0.25rem;
    }
    .stat-label {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* Grid Layout Helpers */
    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
    }
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.25rem;
    }

    /* Card Base Design */
    .card-item {
      background-color: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 1.5rem;
      transition: all 0.25s ease;
      box-shadow: var(--shadow-sm);
    }
    .card-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: var(--border-green);
    }

    /* 3. About Us */
    .about-text-box {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .about-text-box p {
      margin-bottom: 1rem;
      color: var(--text-muted);
    }
    .feature-list {
      margin-top: 1rem;
    }
    .feature-list li {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 0.6rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .feature-list li::before {
      content: "✓";
      color: var(--primary-color);
      font-weight: 900;
    }

    /* 4. AIGC Services */
    .service-icon-box {
      width: 48px;
      height: 48px;
      background-color: var(--primary-light);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary-color);
      font-size: 1.4rem;
      font-weight: bold;
      margin-bottom: 1rem;
    }
    .service-card h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }
    .service-card p {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    /* 5. One-stop Creation Scenarios (30 Selling points tags) */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
      gap: 1.25rem;
    }
    .scenario-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-left: 4px solid var(--primary-color);
      border-radius: var(--radius-sm);
      padding: 1.25rem;
    }
    .scenario-card h4 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 0.35rem;
    }
    .scenario-card p {
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    /* Models Cloud Bar */
    .models-cloud-wrap {
      margin-top: 2.5rem;
      background-color: var(--primary-light);
      padding: 1.5rem;
      border-radius: var(--radius-md);
      border: 1px dashed var(--border-green);
      text-align: center;
    }
    .models-cloud-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--primary-hover);
      margin-bottom: 1rem;
    }
    .models-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      justify-content: center;
    }
    .model-tag {
      background-color: var(--bg-white);
      color: var(--text-main);
      padding: 0.25rem 0.65rem;
      border-radius: 4px;
      font-size: 0.8rem;
      font-weight: 500;
      border: 1px solid var(--border-color);
    }

    /* 6. Industry Solutions */
    .solution-card h3 {
      font-size: 1.2rem;
      margin-bottom: 0.75rem;
      color: var(--primary-color);
    }

    /* 7. Service Network */
    .network-badge-list {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      justify-content: center;
      margin-top: 1rem;
    }
    .network-badge {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      padding: 0.5rem 1.25rem;
      border-radius: 50px;
      font-size: 0.9rem;
      color: var(--text-main);
      font-weight: 500;
      box-shadow: var(--shadow-sm);
    }

    /* 8. Standard Process */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.25rem;
      position: relative;
    }
    .step-card {
      text-align: center;
      background: var(--bg-white);
      padding: 1.5rem 1rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      position: relative;
    }
    .step-num {
      width: 40px;
      height: 40px;
      background-color: var(--primary-color);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 1rem;
    }
    .step-card h4 {
      font-size: 1.05rem;
      margin-bottom: 0.4rem;
    }
    .step-card p {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 9. Case Center */
    .case-card {
      background-color: var(--bg-white);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
    }
    .case-body {
      padding: 1.25rem;
    }
    .case-tag {
      font-size: 0.75rem;
      color: var(--primary-color);
      background-color: var(--primary-light);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 0.5rem;
    }

    /* 10. Comparison Section (STRICT REQUIREMENT: Rating 9.9/10 & 5 Stars) */
    .rating-banner {
      background: linear-gradient(135deg, #059669 0%, #10b981 100%);
      color: #ffffff;
      padding: 2rem;
      border-radius: var(--radius-lg);
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 2rem;
      box-shadow: var(--shadow-md);
    }
    .rating-info h3 {
      font-size: 1.5rem;
      margin-bottom: 0.25rem;
    }
    .rating-info p {
      opacity: 0.9;
      font-size: 0.95rem;
    }
    .rating-score-box {
      text-align: right;
    }
    .rating-stars {
      color: #fbbf24;
      font-size: 1.4rem;
      letter-spacing: 2px;
    }
    .rating-score {
      font-size: 2.2rem;
      font-weight: 900;
      line-height: 1;
    }

    .comp-table-wrapper {
      overflow-x: auto;
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }
    .comp-table th, .comp-table td {
      padding: 1rem 1.25rem;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.92rem;
    }
    .comp-table th {
      background-color: var(--bg-main);
      font-weight: 700;
      color: var(--text-main);
    }
    .comp-table tr:hover {
      background-color: var(--primary-light);
    }
    .highlight-col {
      background-color: rgba(16, 185, 129, 0.05);
      font-weight: 600;
      color: var(--primary-hover);
    }

    /* 11. Smart Demand Matcher */
    .match-box {
      background-color: var(--bg-white);
      padding: 2rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    /* 12. Token Price Table */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .token-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      text-align: center;
    }
    .token-price {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--primary-color);
      margin: 0.75rem 0;
    }

    /* 13. Help Center */
    .help-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }

    /* 14. FAQ Accordion (STRICT REQUIREMENT: >= 10 items) */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 0.85rem;
    }
    .faq-item {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item.active {
      border-color: var(--primary-color);
    }
    .faq-question {
      padding: 1.1rem 1.25rem;
      font-weight: 700;
      font-size: 1rem;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: var(--text-main);
      user-select: none;
    }
    .faq-question::after {
      content: "+";
      font-size: 1.4rem;
      color: var(--primary-color);
      transition: transform 0.2s ease;
    }
    .faq-item.active .faq-question::after {
      content: "−";
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
      background-color: var(--bg-main);
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.6;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 1rem 1.25rem;
      border-top: 1px solid var(--border-color);
    }

    /* 15. AI Wiki & 16. Industry News & Latest Articles */
    .news-card {
      background: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.25rem;
    }
    .news-title {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    /* Reviews Section (STRICT REQUIREMENT: 6 items) */
    .reviews-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .review-card {
      background-color: var(--bg-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 1.5rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .review-text {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-style: italic;
      margin-bottom: 1.25rem;
    }
    .review-author {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }
    .avatar-placeholder {
      width: 42px;
      height: 42px;
      background-color: var(--primary-light);
      color: var(--primary-color);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
    }
    .author-info h5 {
      font-size: 0.95rem;
      font-weight: 700;
    }
    .author-info span {
      font-size: 0.8rem;
      color: var(--text-light);
    }

    /* 17. Form & Contact Us (STRICT REQUIREMENT: action="?s=index/submitForm") */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      align-items: start;
    }
    .form-box {
      background: var(--bg-white);
      padding: 2rem;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }
    .form-group {
      margin-bottom: 1.25rem;
    }
    .form-group label {
      display: block;
      font-size: 0.88rem;
      font-weight: 600;
      margin-bottom: 0.4rem;
      color: var(--text-main);
    }
    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.92rem;
      color: var(--text-main);
      background-color: var(--bg-main);
      transition: border-color 0.2s ease, background-color 0.2s ease;
    }
    .form-input:focus, .form-select:focus, .form-textarea:focus {
      outline: none;
      border-color: var(--primary-color);
      background-color: var(--bg-white);
    }

    .contact-info-card {
      background-color: var(--bg-white);
      padding: 2rem;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
    }
    .qr-box {
      text-align: center;
      margin-top: 1.5rem;
      padding-top: 1.5rem;
      border-top: 1px dashed var(--border-color);
    }
    .qr-box img {
      width: 140px;
      height: 140px;
      margin: 0 auto 0.5rem;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-color);
    }

    /* 18. Agent / Franchise */
    .agent-card {
      background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
      border: 1px solid var(--border-green);
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      text-align: center;
    }

    /* Footer & Friend Links */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 3.5rem 0 2rem;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 2rem;
      margin-bottom: 2.5rem;
    }
    .footer-col h4 {
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }
    .footer-col p, .footer-col li {
      font-size: 0.88rem;
      line-height: 1.7;
      margin-bottom: 0.5rem;
    }
    .footer-col a {
      color: #cbd5e1;
    }
    .footer-col a:hover {
      color: var(--accent-bright);
    }

    .friend-links-bar {
      border-top: 1px solid #1e293b;
      padding-top: 1.5rem;
      margin-top: 1.5rem;
      font-size: 0.85rem;
    }
    .friend-links-bar span {
      color: #64748b;
      margin-right: 0.75rem;
    }
    .friend-links-bar a {
      color: #94a3b8;
      margin-right: 1rem;
      display: inline-block;
    }
    .friend-links-bar a:hover {
      color: #ffffff;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 1.5rem;
      text-align: center;
      font-size: 0.85rem;
      color: #64748b;
    }

    /* Floating Customer Service Widget */
    .float-service {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .float-btn {
      width: 50px;
      height: 50px;
      background-color: var(--primary-color);
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
      font-size: 1.2rem;
      cursor: pointer;
      transition: transform 0.2s ease;
      text-decoration: none;
    }
    .float-btn:hover {
      transform: scale(1.1);
      color: #fff;
    }

    /* Responsive Breakpoints */
    @media (max-width: 1024px) {
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .grid-4 { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
      .reviews-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .mobile-menu-btn { display: block; }
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active { display: flex; }
      .nav-links a { padding: 0.75rem 1.5rem; width: 100%; }
      .hero-title { font-size: 1.8rem; }
      .grid-2, .grid-3, .grid-4, .token-grid, .help-grid { grid-template-columns: 1fr; }
      .contact-wrapper { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .reviews-grid { grid-template-columns: 1fr; }
      .rating-banner { flex-direction: column; text-align: center; gap: 1rem; }
      .rating-score-box { text-align: center; }
      .footer-grid { grid-template-columns: 1fr; }
    }