:root {
      --primary: #4F46E5;
      --primary-vibrant: #6366F1;
      --accent-orange: #FF5722;
      --accent-magenta: #EC4899;
      --accent-cyan: #06B6D4;
      --bg-light: #F8FAFC;
      --card-bg: #FFFFFF;
      --text-main: #0F172A;
      --text-muted: #475569;
      --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(79, 70, 229, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      --radius: 12px;
    }

    * {
      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-light);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background: linear-gradient(180deg, #F1F5F9 0%, #F8FAFC 100%);
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: all 0.25s ease;
    }

    a:hover {
      color: var(--accent-orange);
    }

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

    /* Vibrant Header & Nav */
    header.site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 2px solid #EEF2FF;
      box-shadow: var(--shadow-sm);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
    }

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

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

    .brand-name {
      font-size: 1.4rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-magenta) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

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

    .nav-links li a {
      display: inline-block;
      padding: 10px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: 6px;
    }

    .nav-links li a:hover {
      background: #EEF2FF;
      color: var(--primary);
    }

    .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-size: 0.95rem;
      font-weight: 700;
      cursor: pointer;
      border: none;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary-vibrant) 50%, var(--accent-magenta) 100%);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
      color: #FFFFFF;
    }

    .btn-vibrant {
      background: linear-gradient(135deg, var(--accent-orange) 0%, #F59E0B 100%);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(255, 87, 34, 0.35);
    }

    .btn-vibrant:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 87, 34, 0.5);
      color: #FFFFFF;
    }

    .btn-outline {
      background: #FFFFFF;
      color: var(--primary);
      border: 2px solid var(--primary);
    }

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

    .mobile-menu-toggle {
      display: none;
      font-size: 1.6rem;
      background: none;
      border: none;
      color: var(--text-main);
      cursor: pointer;
    }

    /* Hero Section - STRICTLY NO IMAGES */
    .hero-section {
      padding: 80px 0 60px;
      background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.12) 0%, rgba(236, 72, 153, 0.08) 50%, transparent 80%);
      text-align: center;
      position: relative;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #E0E7FF;
      color: var(--primary);
      border-radius: 50px;
      font-size: 0.9rem;
      font-weight: 700;
      margin-bottom: 24px;
      border: 1px solid #C7D2FE;
    }

    .hero-title {
      font-size: 2.5rem;
      font-weight: 900;
      color: var(--text-main);
      margin-bottom: 20px;
      line-height: 1.25;
      letter-spacing: -0.5px;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: var(--text-muted);
      max-width: 860px;
      margin: 0 auto 36px;
      font-weight: 400;
    }

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

    /* Stat Cards Row in Hero */
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: var(--card-bg);
      padding: 24px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-color);
      border-top: 4px solid var(--primary);
      text-align: center;
      transition: transform 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
    }

    .stat-number {
      font-size: 2.2rem;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-magenta) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .stat-label {
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-top: 4px;
      font-weight: 600;
    }

    /* General Section Styling */
    section.page-section {
      padding: 70px 0;
      border-bottom: 1px solid #EEF2FF;
    }

    .section-header {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 48px;
    }

    .section-tag {
      text-transform: uppercase;
      font-size: 0.85rem;
      font-weight: 800;
      color: var(--accent-orange);
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
    }

    /* Grid Layouts */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 24px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 20px;
    }

    /* Vibrant Feature Cards */
    .vibrant-card {
      background: var(--card-bg);
      border-radius: var(--radius);
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      display: flex;
      flex-direction: column;
      position: relative;
      overflow: hidden;
    }

    .vibrant-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--accent-magenta));
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .vibrant-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #C7D2FE;
    }

    .vibrant-card:hover::before {
      opacity: 1;
    }

    .card-icon-wrapper {
      width: 52px;
      height: 52px;
      border-radius: 10px;
      background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .card-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      flex-grow: 1;
    }

    /* Comparison Table Styling */
    .comparison-container {
      background: var(--card-bg);
      border-radius: var(--radius);
      box-shadow: var(--shadow-lg);
      overflow-x: auto;
      border: 1px solid var(--border-color);
    }

    .comparison-score-banner {
      background: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
      color: #FFFFFF;
      padding: 30px;
      text-align: center;
      display: flex;
      align-items: center;
      justify-content: space-around;
      flex-wrap: wrap;
      gap: 20px;
    }

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

    .score-num {
      font-size: 3.5rem;
      font-weight: 900;
      color: #F59E0B;
      line-height: 1;
    }

    .score-stars {
      color: #F59E0B;
      font-size: 1.4rem;
    }

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

    .comp-table th, .comp-table td {
      padding: 16px 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .comp-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-main);
    }

    .comp-table tr:hover {
      background: #F1F5F9;
    }

    .highlight-col {
      background: #EEF2FF;
      font-weight: 700;
      color: var(--primary);
    }

    /* Step Workflow */
    .step-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 16px;
      position: relative;
    }

    .step-item {
      background: var(--card-bg);
      padding: 24px 16px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      margin: 0 auto 14px;
    }

    /* Token Price Grid */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
      gap: 14px;
    }

    .token-card {
      background: var(--card-bg);
      border: 1px solid var(--border-color);
      border-radius: 8px;
      padding: 14px;
      text-align: center;
    }

    .token-name {
      font-weight: 700;
      font-size: 0.95rem;
      color: var(--text-main);
    }

    .token-price {
      color: var(--accent-orange);
      font-weight: 800;
      font-size: 1.1rem;
      margin-top: 4px;
    }

    /* Testimonial Cards */
    .review-card {
      background: var(--card-bg);
      padding: 24px;
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-placeholder {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
      color: #FFFFFF;
      font-weight: bold;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .user-info .user-name {
      font-weight: 700;
      font-size: 0.95rem;
    }

    .user-info .user-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

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

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

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FFFFFF;
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-answer {
      padding: 0 24px 18px;
      color: var(--text-muted);
      font-size: 0.95rem;
      display: none;
      border-top: 1px dashed #F1F5F9;
      padding-top: 14px;
    }

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

    .faq-toggle-icon {
      font-weight: bold;
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-toggle-icon {
      transform: rotate(45deg);
    }

    /* Contact & Form */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      background: var(--card-bg);
      padding: 40px;
      border-radius: var(--radius);
      box-shadow: var(--shadow-lg);
      border: 1px solid var(--border-color);
    }

    .contact-info-list {
      list-style: none;
      margin-top: 20px;
    }

    .contact-info-list li {
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1rem;
    }

    .qr-box {
      margin-top: 24px;
      text-align: left;
    }

    .qr-box img {
      max-width: 140px;
      height: auto;
      border-radius: 8px;
      border: 1px solid var(--border-color);
    }

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

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

    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .form-control {
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      border-color: var(--primary);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* Media Library Display Section */
    .media-gallery {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

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

    .media-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
      display: block;
    }

    .media-card-body {
      padding: 16px;
    }

    .media-card-title {
      font-weight: 700;
      font-size: 1rem;
      margin-bottom: 6px;
    }

    /* Footer Alignment & Color Safety */
    footer.site-footer {
      background: #0F172A;
      color: #94A3B8;
      padding: 50px 0 30px;
      margin-top: 40px;
    }

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

    .footer-col h4 {
      color: #FFFFFF;
      font-size: 1.1rem;
      margin-bottom: 16px;
    }

    .footer-col p {
      font-size: 0.9rem;
      line-height: 1.6;
    }

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

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a {
      color: #94A3B8;
    }

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

    .friendship-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 10px;
    }

    .friendship-links a {
      color: #CBD5E1;
      background: rgba(255, 255, 255, 0.08);
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 0.85rem;
    }

    .friendship-links a:hover {
      background: var(--primary);
      color: #FFFFFF;
    }

    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 20px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748B;
    }

    /* Floating Customer Service Box */
    .floating-widget {
      position: fixed;
      bottom: 24px;
      right: 24px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent-magenta));
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
      cursor: pointer;
      font-size: 1.2rem;
      transition: transform 0.2s ease;
      border: none;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* Responsive Adjustments */
    @media (max-width: 902px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
      }

      .nav-links.active {
        display: flex;
      }

      .mobile-menu-toggle {
        display: block;
      }

      .contact-wrapper {
        grid-template-columns: 1fr;
      }

      .footer-inner {
        grid-template-columns: 1fr;
      }

      .hero-title {
        font-size: 1.8rem;
      }
    }