:root {
      --primary: #4f46e5;
      --primary-accent: #ff3366;
      --secondary: #06b6d4;
      --warning: #f59e0b;
      --dark-text: #1e1b4b;
      --muted-text: #475569;
      --light-bg: #f8fafc;
      --card-bg: #ffffff;
      --card-border: #e2e8f0;
      --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
      --gradient-warm: linear-gradient(135deg, #ff007a 0%, #7928ca 100%);
      --gradient-cool: linear-gradient(135deg, #0070f3 0%, #00dfd8 100%);
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(79, 70, 229, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      --container-max: 1200px;
    }

    * {
      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;
      color: var(--dark-text);
      background-color: var(--light-bg);
    }

    body {
      line-height: 1.6;
      overflow-x: hidden;
      background: linear-gradient(180deg, #f1f5f9 0%, #ffffff 40%, #f8fafc 100%);
    }

    .container {
      width: 100%;
      max-width: var(--container-max);
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      border-bottom: 2px solid #e0e7ff;
      box-shadow: 0 4px 20px rgba(79, 70, 229, 0.06);
    }

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

    .brand-logo-area {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .brand-logo-area img.ai-page-logo {
      height: 40px;
      width: auto;
      display: block;
    }

    .brand-title {
      font-size: 20px;
      font-weight: 800;
      color: #312e81;
      letter-spacing: -0.5px;
    }

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

    .nav-links li a {
      text-decoration: none;
      color: var(--dark-text);
      font-weight: 600;
      font-size: 14px;
      padding: 8px 12px;
      border-radius: 6px;
      transition: color 0.2s, background-color 0.2s;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: #eef2ff;
    }

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

    .btn-nav-primary {
      background: var(--gradient-brand);
      color: #ffffff !important;
      padding: 10px 20px;
      border-radius: 30px;
      font-size: 14px;
      font-weight: 700;
      text-decoration: none;
      box-shadow: 0 4px 14px rgba(236, 72, 153, 0.35);
      transition: transform 0.2s, box-shadow 0.2s;
      display: inline-block;
    }

    .btn-nav-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(236, 72, 153, 0.5);
    }

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

    /* Hero Section (No Images Allowed) */
    .hero-section {
      padding: 60px 0 50px;
      background: radial-gradient(circle at 80% 20%, rgba(244, 63, 94, 0.12) 0%, transparent 50%),
                  radial-gradient(circle at 10% 80%, rgba(79, 70, 229, 0.12) 0%, transparent 50%),
                  #ffffff;
      border-bottom: 1px solid #e2e8f0;
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #eff6ff;
      border: 1px solid #bfdbfe;
      color: #1d4ed8;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 42px;
      font-weight: 900;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-desc {
      font-size: 18px;
      color: var(--muted-text);
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }

    .btn-hero-official {
      background: var(--gradient-warm);
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 40px;
      text-decoration: none;
      box-shadow: 0 10px 25px rgba(255, 0, 122, 0.35);
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-hero-official:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(255, 0, 122, 0.5);
    }

    .btn-hero-secondary {
      background: #ffffff;
      color: var(--dark-text);
      font-size: 16px;
      font-weight: 700;
      padding: 14px 28px;
      border-radius: 40px;
      text-decoration: none;
      border: 2px solid #cbd5e1;
      transition: all 0.25s ease;
    }

    .btn-hero-secondary:hover {
      background: #f1f5f9;
      border-color: #94a3b8;
    }

    .hero-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 20px;
    }

    .hero-stat-card {
      background: #ffffff;
      padding: 20px 16px;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }

    .hero-stat-num {
      font-size: 28px;
      font-weight: 900;
      color: #4f46e5;
      margin-bottom: 4px;
    }

    .hero-stat-label {
      font-size: 13px;
      color: var(--muted-text);
      font-weight: 600;
    }

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

    .section-header {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 50px;
    }

    .section-tag {
      color: #ec4899;
      font-size: 14px;
      font-weight: 800;
      text-transform: uppercase;
      letter-spacing: 1px;
      margin-bottom: 8px;
      display: block;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: #0f172a;
      margin-bottom: 16px;
    }

    .section-subtitle {
      font-size: 16px;
      color: var(--muted-text);
      line-height: 1.6;
    }

    /* Model Ecosystem Cloud */
    .models-bar-section {
      background: #ffffff;
      border-bottom: 1px solid #f1f5f9;
      padding: 30px 0;
    }

    .models-tag-cloud {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
    }

    .model-tag {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      padding: 6px 14px;
      border-radius: 8px;
      font-size: 13px;
      font-weight: 700;
      color: #334155;
      transition: all 0.2s;
    }

    .model-tag:hover {
      background: #4f46e5;
      color: #ffffff;
      border-color: #4f46e5;
    }

    /* Card Grids */
    .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: #ffffff;
      border-radius: 16px;
      padding: 28px;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, box-shadow 0.2s;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: #cbd5e1;
    }

    .feature-card-title {
      font-size: 18px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .feature-card-desc {
      font-size: 14px;
      color: var(--muted-text);
      line-height: 1.6;
      flex-grow: 1;
    }

    .card-badge-accent {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #ff007a;
    }

    /* Comparison Section */
    .review-highlight-card {
      background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
      color: #ffffff;
      border-radius: 20px;
      padding: 36px;
      margin-bottom: 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .review-score-area {
      display: flex;
      align-items: baseline;
      gap: 10px;
    }

    .review-score-large {
      font-size: 56px;
      font-weight: 900;
      color: #fbbf24;
      line-height: 1;
    }

    .table-container {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }

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

    .comparison-table th, .comparison-table td {
      padding: 18px 24px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 14px;
    }

    .comparison-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }

    .comparison-table tr:hover td {
      background: #faf5ff;
    }

    .table-tag-win {
      background: #ecfdf5;
      color: #059669;
      padding: 4px 10px;
      border-radius: 6px;
      font-weight: 700;
      font-size: 12px;
      border: 1px solid #a7f3d0;
    }

    /* Token Price Matrix */
    .price-card {
      background: #ffffff;
      border-radius: 16px;
      border: 2px solid #e2e8f0;
      padding: 30px;
      text-align: center;
      position: relative;
      transition: all 0.25s ease;
    }

    .price-card.featured {
      border-color: #7c3aed;
      box-shadow: 0 10px 30px rgba(124, 58, 237, 0.15);
    }

    .price-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--gradient-warm);
      color: #ffffff;
      padding: 4px 16px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 800;
    }

    .price-amount {
      font-size: 38px;
      font-weight: 900;
      color: #0f172a;
      margin: 16px 0;
    }

    .price-features {
      list-style: none;
      margin: 20px 0;
      text-align: left;
      font-size: 14px;
      color: var(--muted-text);
    }

    .price-features li {
      padding: 8px 0;
      border-bottom: 1px dashed #f1f5f9;
    }

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

    .step-box {
      background: #ffffff;
      padding: 24px;
      border-radius: 16px;
      border: 1px solid #e2e8f0;
      position: relative;
    }

    .step-number {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: #4f46e5;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 16px;
      margin-bottom: 16px;
    }

    /* Media & Cases Section */
    .media-card {
      background: #ffffff;
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid #e2e8f0;
      box-shadow: var(--shadow-sm);
    }

    .media-card-img-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #f1f5f9;
      overflow: hidden;
    }

    .media-card-img-wrap.square {
      aspect-ratio: 1 / 1;
    }

    .media-card-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.3s;
    }

    .media-card:hover .media-card-img-wrap img {
      transform: scale(1.03);
    }

    .media-card-body {
      padding: 20px;
    }

    /* Testimonials */
    .testimonial-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 24px;
      border: 1px solid #e2e8f0;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      box-shadow: var(--shadow-sm);
    }

    .testimonial-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 16px;
      padding-top: 16px;
      border-top: 1px solid #f1f5f9;
    }

    .user-avatar-placeholder {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: linear-gradient(135deg, #a855f7, #ec4899);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }

    /* FAQ Accordion */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: #ffffff;
      border-radius: 12px;
      border: 1px solid #e2e8f0;
      margin-bottom: 12px;
      overflow: hidden;
    }

    .faq-question {
      padding: 18px 24px;
      font-weight: 700;
      font-size: 16px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      background: #ffffff;
      color: #1e293b;
    }

    .faq-answer {
      padding: 0 24px 18px;
      font-size: 14px;
      color: var(--muted-text);
      line-height: 1.7;
      display: none;
    }

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

    .faq-item.active .faq-question {
      color: #4f46e5;
    }

    /* Form Section */
    .form-section-card {
      background: #ffffff;
      border-radius: 20px;
      border: 1px solid #e2e8f0;
      padding: 40px;
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #334155;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1.5px solid #cbd5e1;
      border-radius: 8px;
      font-size: 14px;
      color: #0f172a;
      transition: border-color 0.2s;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: #4f46e5;
      outline: none;
    }

    .btn-submit {
      background: var(--gradient-brand);
      color: #ffffff;
      padding: 14px 28px;
      border: none;
      border-radius: 8px;
      font-size: 16px;
      font-weight: 700;
      cursor: pointer;
      width: 100%;
      transition: opacity 0.2s;
    }

    .btn-submit:hover {
      opacity: 0.95;
    }

    /* Articles & Links */
    .articles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .article-item {
      background: #ffffff;
      border-radius: 12px;
      padding: 20px;
      border: 1px solid #e2e8f0;
    }

    .article-link {
      color: #1e293b;
      text-decoration: none;
      font-weight: 700;
      font-size: 15px;
      display: block;
      margin-bottom: 8px;
    }

    .article-link:hover {
      color: #4f46e5;
    }

    /* Footer */
    .site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid #1e293b;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 40px;
    }

    .footer-brand-title {
      color: #ffffff;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .footer-heading {
      color: #f8fafc;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }

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

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

    .footer-links-list a {
      color: #94a3b8;
      text-decoration: none;
      font-size: 13px;
      transition: color 0.2s;
    }

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

    .footer-qrcode-box img {
      width: 90px;
      height: 90px;
      border-radius: 8px;
      display: block;
      background: #ffffff;
      padding: 4px;
    }

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
    }

    .friend-links-area {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      margin-bottom: 16px;
    }

    .friend-links-area a {
      color: #64748b;
      text-decoration: none;
      font-size: 12px;
    }

    .friend-links-area a:hover {
      color: #cbd5e1;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      bottom: 30px;
      right: 20px;
      z-index: 99;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #ffffff;
      box-shadow: 0 4px 14px rgba(0,0,0,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      text-decoration: none;
      color: #4f46e5;
      font-size: 18px;
      border: 1px solid #e2e8f0;
      transition: transform 0.2s;
    }

    .floating-btn:hover {
      transform: scale(1.08);
    }

    /* Responsive Queries */
    @media (max-width: 992px) {
      .hero-title { font-size: 32px; }
      .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
      .flow-steps { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
      .nav-links { display: none; }
      .mobile-menu-toggle { display: block; }
    }

    @media (max-width: 640px) {
      .hero-title { font-size: 26px; }
      .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
      .flow-steps { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .hero-stats-grid { grid-template-columns: 1fr; }
      .section-padding { padding: 50px 0; }
    }