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

    :root {
      --primary-gradient: linear-gradient(135deg, #0052d4 0%, #4364f7 50%, #6fb1fc 100%);
      --rainbow-accent: linear-gradient(90deg, #ff4e50, #f9d423, #11998e, #38ef7d, #6a11cb, #2575fc);
      --rainbow-card: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(245,247,250,0.95));
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
      --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: #f8fafc;
    }

    /* Container System */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Typography & Utilities */
    h1, h2, h3, h4 {
      color: var(--text-main);
      font-weight: 700;
      line-height: 1.3;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    .badge {
      display: inline-block;
      padding: 4px 12px;
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: 50px;
      background: var(--rainbow-accent);
      color: #ffffff;
      margin-bottom: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    }

    .section-title {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-title h2 {
      font-size: 2.2rem;
      margin-bottom: 12px;
      background: linear-gradient(135deg, #0f172a 0%, #2575fc 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .section-title p {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    .rainbow-line {
      height: 4px;
      width: 80px;
      background: var(--rainbow-accent);
      margin: 16px auto 0;
      border-radius: 2px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 1rem;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      border: none;
      transition: var(--transition);
      gap: 8px;
    }

    .btn-primary {
      background: linear-gradient(135deg, #2575fc 0%, #6a11cb 100%);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37, 117, 252, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37, 117, 252, 0.5);
    }

    .btn-outline {
      background: #ffffff;
      color: #2575fc;
      border: 2px solid #2575fc;
    }

    .btn-outline:hover {
      background: #2575fc;
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* Top Rainbow Bar */
    .top-rainbow-bar {
      height: 4px;
      background: var(--rainbow-accent);
      width: 100%;
    }

    /* Header & Navbar */
    .header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-title {
      font-size: 1.3rem;
      font-weight: 800;
      background: linear-gradient(90deg, #2575fc, #6a11cb);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0; /* Strictly set as requested */
      list-style: none;
    }

    .nav-links li a {
      display: block;
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: #2575fc;
      background: rgba(37, 117, 252, 0.06);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

    /* Hero Section (NO IMAGES strictly enforced) */
    .hero-section {
      position: relative;
      padding: 90px 0 70px;
      background: radial-gradient(circle at 50% 0%, rgba(37, 117, 252, 0.08) 0%, rgba(248, 250, 252, 1) 70%);
      overflow: hidden;
      text-align: center;
    }

    .hero-content {
      max-width: 880px;
      margin: 0 auto;
      position: relative;
      z-index: 2;
    }

    .hero-title {
      font-size: 2.8rem;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.25rem;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 50px;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }

    .stat-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--rainbow-accent);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lg);
    }

    .stat-number {
      font-size: 2rem;
      font-weight: 800;
      color: #2575fc;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 0.9rem;
      color: var(--text-light);
    }

    /* Platform Intro / About Us */
    .section-padding {
      padding: 80px 0;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .about-card {
      background: #ffffff;
      padding: 32px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .about-card h3 {
      font-size: 1.4rem;
      margin-bottom: 16px;
      color: #2575fc;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .tag-item {
      background: #f1f5f9;
      color: var(--text-main);
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 500;
      border: 1px solid #e2e8f0;
    }

    /* Grid Services Cards */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #2575fc;
    }

    .service-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: var(--rainbow-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .service-card h3 {
      font-size: 1.2rem;
      margin-bottom: 10px;
    }

    .service-card p {
      font-size: 0.95rem;
      color: var(--text-muted);
    }

    /* Workflow Steps */
    .steps-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      background: #2575fc;
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin: 0 auto 16px;
    }

    /* Comparison Table & Rating */
    .comparison-wrapper {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 36px;
      box-shadow: var(--shadow-sm);
    }

    .rating-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: linear-gradient(135deg, #1e293b, #0f172a);
      color: #ffffff;
      padding: 24px 32px;
      border-radius: 8px;
      margin-bottom: 32px;
    }

    .rating-score {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .score-val {
      font-size: 2.8rem;
      font-weight: 900;
      color: #f59e0b;
    }

    .stars {
      color: #f59e0b;
      font-size: 1.4rem;
    }

    .table-responsive {
      overflow-x: auto;
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }

    .comp-table th {
      background: #f8fafc;
      font-size: 1rem;
      color: var(--text-main);
    }

    .highlight-col {
      background: rgba(37, 117, 252, 0.04);
      font-weight: 600;
      color: #2575fc;
    }

    /* Token Price Table */
    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .price-card {
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 32px 24px;
      text-align: center;
      transition: var(--transition);
    }

    .price-card.featured {
      border: 2px solid #2575fc;
      transform: scale(1.03);
      box-shadow: var(--shadow-lg);
    }

    .price-card h3 {
      font-size: 1.3rem;
      margin-bottom: 8px;
    }

    .price-val {
      font-size: 2.2rem;
      font-weight: 800;
      color: #2575fc;
      margin: 16px 0;
    }

    /* Cases & Articles */
    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .case-card {
      background: #ffffff;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .case-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background: #e2e8f0;
    }

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

    .case-card:hover .ai-page-image {
      transform: scale(1.05);
    }

    .case-info {
      padding: 20px;
    }

    .article-links-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      margin-top: 20px;
    }

    .article-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 20px;
      background: #ffffff;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

    .article-item a {
      color: #2575fc;
      font-weight: 600;
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 840px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 8px;
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .faq-title {
      padding: 20px;
      font-weight: 600;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #ffffff;
      user-select: none;
    }

    .faq-content {
      padding: 0 20px 20px 20px;
      color: var(--text-muted);
      font-size: 0.95rem;
      display: none;
      border-top: 1px solid #f1f5f9;
    }

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

    .faq-item.active .faq-title {
      color: #2575fc;
    }

    /* Testimonials */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .testimonial-card {
      background: #ffffff;
      padding: 28px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .user-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
    }

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--rainbow-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 700;
    }

    /* Form & Contact */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .contact-form {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .form-group label {
      font-weight: 600;
      font-size: 0.9rem;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border-radius: 6px;
      border: 1px solid var(--border-color);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: #2575fc;
      box-shadow: 0 0 0 3px rgba(37, 117, 252, 0.1);
    }

    .qr-box {
      text-align: center;
      padding: 24px;
      background: #f8fafc;
      border-radius: 8px;
      border: 1px dashed var(--border-color);
    }

    .qr-box img {
      width: 160px;
      height: 160px;
      object-fit: contain;
      border-radius: 8px;
      margin-bottom: 12px;
    }

    /* Footer */
    .footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer h4 {
      color: #ffffff;
      margin-bottom: 20px;
      font-size: 1.1rem;
    }

    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

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

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 12px;
    }

    .friendship-links a {
      color: #94a3b8;
      background: rgba(255,255,255,0.05);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.85rem;
    }

    .friendship-links a:hover {
      color: #ffffff;
      background: rgba(255,255,255,0.15);
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 30px;
      text-align: center;
      color: #64748b;
      font-size: 0.85rem;
    }

    /* Floating Contact Widget */
    .float-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, #2575fc, #6a11cb);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: var(--shadow-lg);
      cursor: pointer;
      font-weight: 700;
      font-size: 0.85rem;
      text-align: center;
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .hero-title { font-size: 2.2rem; }
      .services-grid, .case-grid, .testimonial-grid, .price-grid { grid-template-columns: repeat(2, 1fr); }
      .hero-stats, .steps-container { grid-template-columns: repeat(2, 1fr); }
      .about-grid, .contact-wrapper, .footer-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
      }
      .nav-links.active { display: flex; }
      .mobile-menu-btn { display: block; }
      .services-grid, .case-grid, .testimonial-grid, .price-grid, .hero-stats, .steps-container { grid-template-columns: 1fr; }
      .hero-title { font-size: 1.8rem; }
      .rating-banner { flex-direction: column; gap: 16px; text-align: center; }
    }