/* CSS Standard Reset & Contrast Theme variables */
    :root {
      --primary: #4f46e5;
      --primary-dark: #3730a3;
      --accent-magenta: #e11d48;
      --accent-cyan: #0891b2;
      --accent-amber: #d97706;
      --accent-purple: #7c3aed;
      --text-main: #0f172a;
      --text-muted: #475569;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-alt: #f1f5f9;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
      --shadow-hover: 0 20px 30px -10px rgba(225, 29, 72, 0.15), 0 10px 15px -5px rgba(79, 70, 229, 0.2);
      --radius: 12px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      overflow-x: hidden;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    /* Container Standard Alignment */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid var(--accent-cyan);
      box-shadow: var(--shadow-sm);
    }

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

    .brand-group {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      object-fit: contain;
    }

    /* Strict Rule: CSS .nav-links gap must be 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      display: inline-block;
      padding: 8px 14px;
      color: var(--text-main);
      text-decoration: none;
      font-weight: 600;
      font-size: 15px;
      transition: var(--transition);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      color: var(--accent-magenta);
      background-color: #ffe4e6;
    }

    .header-cta {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 8px;
      font-weight: 700;
      font-size: 15px;
      text-decoration: none;
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent-magenta), var(--primary));
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(225, 29, 72, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
    }

    .btn-outline {
      border-color: var(--primary);
      color: var(--primary);
      background: transparent;
    }

    .btn-outline:hover {
      background: var(--primary);
      color: #ffffff;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Section Utility */
    .section-padding {
      padding: 80px 0;
    }

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

    .section-header {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 50px auto;
    }

    .badge-tag {
      display: inline-block;
      padding: 4px 14px;
      background: linear-gradient(90deg, #3b82f6, #8b5cf6);
      color: #ffffff;
      font-weight: 700;
      font-size: 13px;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .section-subtitle {
      font-size: 17px;
      color: var(--text-muted);
    }

    /* Hero Section - STRICT RULE: NO IMAGES inside Hero! Pure CSS & Vibrant Contrast */
    .hero-section {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #0f172a 100%);
      color: #ffffff;
      padding: 90px 0 100px 0;
      position: relative;
      overflow: hidden;
      border-bottom: 4px solid var(--accent-amber);
    }

    .hero-bg-shapes {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      pointer-events: none;
      overflow: hidden;
    }

    .shape-blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(70px);
      opacity: 0.4;
    }

    .blob-1 {
      width: 400px;
      height: 400px;
      background: var(--accent-magenta);
      top: -100px;
      right: -50px;
    }

    .blob-2 {
      width: 350px;
      height: 350px;
      background: var(--accent-cyan);
      bottom: -80px;
      left: -50px;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 24px;
      letter-spacing: -0.5px;
      color: #ffffff;
    }

    .hero-title span {
      background: linear-gradient(90deg, #38bdf8, #f43f5e, #fbbf24);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-desc {
      font-size: 19px;
      color: #cbd5e1;
      margin-bottom: 36px;
      line-height: 1.7;
    }

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

    .btn-hero-official {
      padding: 14px 36px;
      font-size: 18px;
      border-radius: 50px;
      background: linear-gradient(90deg, #f43f5e, #e11d48);
      color: #ffffff;
      font-weight: 800;
      text-decoration: none;
      box-shadow: 0 0 25px rgba(244, 63, 94, 0.6);
      transition: var(--transition);
    }

    .btn-hero-official:hover {
      transform: scale(1.05);
      box-shadow: 0 0 35px rgba(244, 63, 94, 0.8);
    }

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

    .stat-card {
      background: rgba(255, 255, 255, 0.07);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-top: 3px solid var(--accent-cyan);
      padding: 20px 16px;
      border-radius: 12px;
      text-align: center;
    }

    .stat-number {
      font-size: 32px;
      font-weight: 900;
      color: #38bdf8;
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 14px;
      color: #94a3b8;
    }

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

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

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .feature-card {
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent-magenta));
    }

    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--accent-magenta);
    }

    .card-icon-box {
      width: 52px;
      height: 52px;
      border-radius: 10px;
      background: rgba(79, 70, 229, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .feature-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .feature-card p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.6;
    }

    /* Platform & Matrix Badge Grid */
    .model-badge-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 30px;
    }

    .model-badge {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      padding: 8px 16px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .model-badge:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
      transform: scale(1.05);
    }

    /* Comparison Table Section */
    .comparison-box {
      background: var(--bg-surface);
      border-radius: var(--radius);
      border: 2px solid var(--accent-cyan);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .rating-banner {
      background: linear-gradient(90deg, #4f46e5, #7c3aed);
      color: #ffffff;
      padding: 24px;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 16px;
    }

    .rating-score {
      font-size: 36px;
      font-weight: 900;
      color: #fbbf24;
    }

    .table-container {
      width: 100%;
      overflow-x: auto;
    }

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

    .custom-table th, .custom-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 15px;
    }

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

    .custom-table tr:hover {
      background: #f8fafc;
    }

    .highlight-col {
      background: rgba(79, 70, 229, 0.04);
      font-weight: 700;
      color: var(--primary-dark);
    }

    /* Token Price Table */
    .token-price-card {
      background: var(--bg-surface);
      border-radius: var(--radius);
      padding: 30px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    /* Testimonials Grid */
    .testimonial-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 24px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

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

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-magenta), var(--accent-cyan));
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
    }

    /* Accordion FAQ */
    .faq-wrapper {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      margin-bottom: 12px;
      overflow: hidden;
    }

    .faq-header {
      width: 100%;
      padding: 18px 24px;
      text-align: left;
      background: none;
      border: none;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      transition: var(--transition);
    }

    .faq-header:hover {
      background: var(--bg-alt);
      color: var(--primary);
    }

    .faq-content {
      padding: 0 24px;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      color: var(--text-muted);
      font-size: 15px;
    }

    .faq-item.active .faq-content {
      padding: 0 24px 18px 24px;
      max-height: 250px;
    }

    .faq-item.active .faq-header {
      color: var(--primary);
      border-bottom: 1px solid var(--border-color);
    }

    /* Gallery & Image Containers */
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

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

    .ai-page-image {
      width: 100%;
      height: auto;
      display: block;
      transition: var(--transition);
    }

    .img-box:hover .ai-page-image {
      transform: scale(1.03);
    }

    /* Form Section */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: var(--bg-surface);
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-weight: 700;
      margin-bottom: 8px;
      font-size: 14px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 15px;
      transition: var(--transition);
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    }

    /* Footer Design */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding-top: 60px;
      padding-bottom: 30px;
      border-top: 4px solid var(--accent-magenta);
      margin-top: auto;
    }

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

    .footer-col h4 {
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }

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

    .footer-links li {
      margin-bottom: 10px;
    }

    .footer-links a {
      color: #94a3b8;
      text-decoration: none;
      transition: var(--transition);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #38bdf8;
    }

    .footer-qr {
      max-width: 120px;
      border-radius: 8px;
      border: 2px solid #334155;
    }

    .copyright-bar {
      border-top: 1px solid #334155;
      padding-top: 24px;
      text-align: center;
      font-size: 14px;
      color: #64748b;
    }

    /* Floating Widget */
    .floating-kefu {
      position: fixed;
      right: 24px;
      bottom: 24px;
      z-index: 999;
      background: linear-gradient(135deg, var(--accent-magenta), var(--primary));
      color: #ffffff;
      border-radius: 50px;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: 0 10px 25px rgba(225, 29, 72, 0.4);
      text-decoration: none;
      font-weight: 700;
      font-size: 14px;
      transition: var(--transition);
    }

    .floating-kefu:hover {
      transform: translateY(-4px) scale(1.03);
    }

    /* Responsive Adaptation */
    @media (max-width: 1024px) {
      .grid-4, .hero-stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .hero-title {
        font-size: 28px;
      }
      .grid-3, .grid-2, .grid-4, .hero-stats-grid, .gallery-grid, .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .mobile-menu-btn {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 2px solid var(--primary);
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links li {
        width: 100%;
        text-align: center;
      }
      .nav-links li a {
        padding: 12px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
    }