/* CSS Reset & Variable Definitions */
    :root {
      --primary: #4f46e5;
      --primary-dark: #4338ca;
      --secondary: #06b6d4;
      --accent: #f59e0b;
      --accent-red: #ef4444;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --bg-alt: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 25px -5px rgba(79, 70, 229, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-vibrant: 0 20px 35px -10px rgba(6, 182, 212, 0.25);
      --radius-sm: 0.375rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
      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, sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }

    /* Container Standardisation */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 4.5rem;
    }

    .brand-area {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .ai-page-logo {
      height: 2.5rem;
      width: auto;
      object-fit: contain;
    }

    /* Constraint Rule Applied: .nav-links gap MUST BE 0 */
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
      list-style: none;
    }

    .nav-links a {
      display: inline-block;
      padding: 0.5rem 0.75rem;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
      font-size: 0.9375rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .nav-links a:hover {
      color: var(--primary);
      background-color: rgba(79, 70, 229, 0.06);
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.625rem 1.375rem;
      font-weight: 600;
      font-size: 0.9375rem;
      border-radius: 9999px;
      text-decoration: none;
      transition: var(--transition);
      cursor: pointer;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      box-shadow: var(--shadow-md);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-vibrant);
      color: #ffffff;
    }

    .btn-secondary {
      background-color: #ffffff;
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-secondary:hover {
      background-color: rgba(79, 70, 229, 0.05);
      transform: translateY(-2px);
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Hero Section - STRICTLY NO IMAGES */
    .hero-section {
      padding: 5rem 0 4rem;
      background: radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.12) 0%, rgba(79, 70, 229, 0.05) 50%, rgba(248, 250, 252, 1) 100%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      padding: 0.375rem 1rem;
      border-radius: 9999px;
      background: linear-gradient(90deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
      border: 1px solid rgba(79, 70, 229, 0.2);
      color: var(--primary);
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 1.5rem;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 800;
      letter-spacing: -0.025em;
      color: var(--text-main);
      margin-bottom: 1.25rem;
      line-height: 1.25;
    }

    .hero-subtitle {
      font-size: 1.125rem;
      color: var(--text-muted);
      max-width: 800px;
      margin: 0 auto 2.25rem;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 3.5rem;
      flex-wrap: wrap;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.25rem;
      margin-top: 2rem;
    }

    .stat-card {
      background: #ffffff;
      padding: 1.5rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(79, 70, 229, 0.3);
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 0.25rem;
    }

    .stat-desc {
      font-size: 0.875rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* Common Section Formatting */
    .section {
      padding: 4.5rem 0;
    }

    .section-alt {
      background-color: var(--bg-alt);
    }

    .section-header {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 3.25rem;
    }

    .section-tag {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--secondary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: 0.5rem;
      display: block;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 1rem;
    }

    .section-desc {
      font-size: 1rem;
      color: var(--text-muted);
    }

    /* Cards Grid System */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 1.75rem;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
    }

    .feature-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(6, 182, 212, 0.4);
    }

    .feature-icon-box {
      width: 3rem;
      height: 3rem;
      border-radius: var(--radius-sm);
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 1.25rem;
    }

    .feature-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: var(--text-main);
    }

    .feature-card p {
      font-size: 0.9375rem;
      color: var(--text-muted);
      flex-grow: 1;
      line-height: 1.6;
    }

    /* Supported Platforms Badge Cloud */
    .platform-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      justify-content: center;
      margin-top: 1.5rem;
    }

    .platform-chip {
      padding: 0.5rem 1.125rem;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 9999px;
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .platform-chip:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: scale(1.05);
    }

    /* Workflow Section */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 1.5rem;
      position: relative;
    }

    .process-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      padding: 1.75rem;
      border-radius: var(--radius-md);
      position: relative;
    }

    .process-step {
      font-size: 2.25rem;
      font-weight: 900;
      color: rgba(79, 70, 229, 0.15);
      position: absolute;
      top: 1rem;
      right: 1.25rem;
    }

    .process-card h4 {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    /* Comparison Table Component */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      overflow-x: auto;
    }

    .score-banner {
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      padding: 1.5rem 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }

    .score-badge {
      font-size: 1.25rem;
      font-weight: 700;
    }

    .score-num {
      font-size: 2rem;
      font-weight: 900;
      color: #fef08a;
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 1.25rem 1.5rem;
      border-bottom: 1px solid var(--border-color);
      font-size: 0.9375rem;
    }

    .comparison-table th {
      background-color: var(--bg-alt);
      font-weight: 700;
      color: var(--text-main);
    }

    .comparison-table td.highlight {
      background-color: rgba(79, 70, 229, 0.03);
      font-weight: 700;
      color: var(--primary);
    }

    /* Cases & Showcase */
    .case-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .case-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }

    .case-img-holder {
      width: 100%;
      height: 220px;
      overflow: hidden;
      background-color: var(--bg-alt);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-card:hover .ai-page-image {
      transform: scale(1.04);
    }

    .case-body {
      padding: 1.5rem;
    }

    .case-body h4 {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    .case-body p {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    /* Token Price Card */
    .token-box {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 2.5rem;
      box-shadow: var(--shadow-lg);
    }

    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 1.5rem;
      margin-top: 1.5rem;
    }

    .token-item {
      background: rgba(255, 255, 255, 0.07);
      padding: 1.25rem;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .token-item h5 {
      color: var(--secondary);
      font-size: 1.125rem;
      margin-bottom: 0.5rem;
    }

    .token-price {
      font-size: 1.5rem;
      font-weight: 800;
      color: #ffffff;
    }

    /* User Reviews */
    .review-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .review-quote {
      font-size: 0.9375rem;
      color: var(--text-muted);
      margin-bottom: 1.25rem;
      font-style: italic;
      line-height: 1.6;
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .user-avatar-placeholder {
      width: 2.75rem;
      height: 2.75rem;
      border-radius: 9999px;
      background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.125rem;
    }

    .user-info h5 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-info p {
      font-size: 0.8125rem;
      color: var(--text-light);
    }

    /* Contact Form & Info */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2.5rem;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }

    .contact-info-side {
      background: linear-gradient(135deg, rgba(79, 70, 229, 0.04), rgba(6, 182, 212, 0.04));
      padding: 2.5rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .info-list {
      list-style: none;
      margin: 1.5rem 0;
    }

    .info-list li {
      margin-bottom: 1rem;
      font-size: 0.9375rem;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 0.75rem;
    }

    .qr-box {
      margin-top: 1rem;
      text-align: center;
      background: #ffffff;
      padding: 1.25rem;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      display: inline-block;
      max-width: 200px;
    }

    .qr-box img {
      width: 100%;
      height: auto;
      border-radius: var(--radius-sm);
    }

    .contact-form-side {
      padding: 2.5rem;
    }

    .form-group {
      margin-bottom: 1.25rem;
    }

    .form-group label {
      display: block;
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 0.375rem;
      color: var(--text-main);
    }

    .form-control {
      width: 100%;
      padding: 0.75rem 1rem;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 0.9375rem;
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
      background-color: #ffffff;
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    /* FAQ Accordion Component */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-toggle {
      width: 100%;
      padding: 1.25rem 1.5rem;
      text-align: left;
      background: none;
      border: none;
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .faq-toggle::after {
      content: "+";
      font-size: 1.5rem;
      color: var(--primary);
      transition: transform 0.2s;
    }

    .faq-item.active .faq-toggle::after {
      content: "−";
    }

    .faq-content {
      padding: 0 1.5rem 1.25rem;
      font-size: 0.9375rem;
      color: var(--text-muted);
      display: none;
      line-height: 1.6;
    }

    .faq-item.active .faq-content {
      display: block;
    }

    /* Articles & Links Grid */
    .article-links-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1rem;
    }

    .article-link-card {
      padding: 1rem 1.25rem;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      text-decoration: none;
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.9375rem;
      transition: var(--transition);
      display: block;
    }

    .article-link-card:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateX(4px);
    }

    /* Footer Component */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 4rem 0 2rem;
      font-size: 0.875rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 2.5rem;
      margin-bottom: 3rem;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 1.25rem;
      margin-bottom: 1rem;
    }

    .footer-brand p {
      line-height: 1.6;
      margin-bottom: 1.25rem;
    }

    .footer-column h5 {
      color: #ffffff;
      font-size: 1rem;
      margin-bottom: 1rem;
      font-weight: 700;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.625rem;
    }

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: #ffffff;
    }

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem 1rem;
      margin-top: 0.75rem;
    }

    .friendship-links a {
      color: #38bdf8;
      text-decoration: none;
    }

    .friendship-links a:hover {
      text-decoration: underline;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 2rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 1rem;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
    }

    .float-btn {
      width: 3.25rem;
      height: 3.25rem;
      border-radius: 9999px;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      box-shadow: var(--shadow-lg);
      font-weight: bold;
      transition: var(--transition);
    }

    .float-btn:hover {
      transform: scale(1.1);
      background: var(--primary-dark);
    }

    /* Responsive Breakpoints */
    @media (max-width: 992px) {
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 1.875rem;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 4.5rem;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.show {
        display: flex;
      }
      .nav-links a {
        width: 100%;
        padding: 0.75rem 1rem;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }