/* CSS Variables & Global Resets */
    :root {
      --primary-color: #4f46e5;
      --primary-vivid: #6366f1;
      --accent-pink: #ec4899;
      --accent-cyan: #06b6d4;
      --accent-amber: #f59e0b;
      --accent-green: #10b981;
      --text-main: #1f2937;
      --text-muted: #4b5563;
      --text-light: #6b7280;
      --bg-main: #f8fafc;
      --bg-white: #ffffff;
      --bg-soft-gray: #f1f5f9;
      --border-color: #e2e8f0;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 10px 25px -5px rgba(99,102,241,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
      --shadow-lg: 0 20px 30px -10px rgba(79,70,229,0.15);
      --container-max-width: 1240px;
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-main);
      overflow-x: hidden;
    }

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

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

    /* Container Utility */
    .container {
      width: 100%;
      max-width: var(--container-max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* Typography Defaults */
    h1, h2, h3, h4, h5, h6 {
      color: #111827;
      font-weight: 700;
      line-height: 1.3;
    }

    p {
      color: var(--text-muted);
    }

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

    .section-tag {
      display: inline-block;
      padding: 6px 16px;
      background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(236,72,153,0.1));
      color: var(--primary-color);
      font-weight: 700;
      font-size: 14px;
      border-radius: 50px;
      margin-bottom: 12px;
      border: 1px solid rgba(79,70,229,0.2);
    }

    .section-title {
      font-size: 32px;
      letter-spacing: -0.5px;
      color: #111827;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 680px;
      margin: 12px auto 0;
    }

    /* Vibrant Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      border-radius: 12px;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      border: none;
      outline: none;
      gap: 8px;
    }

    .btn-vivid {
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
      color: #ffffff !important;
      box-shadow: 0 8px 20px rgba(236, 72, 153, 0.3);
    }

    .btn-vivid:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(236, 72, 153, 0.45);
    }

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

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

    .btn-cyan {
      background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
      color: #ffffff !important;
      box-shadow: 0 8px 20px rgba(6, 182, 212, 0.3);
    }

    .btn-cyan:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 25px rgba(6, 182, 212, 0.45);
    }

    /* Top Navigation Header */
    .site-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);
      box-shadow: var(--shadow-sm);
    }

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

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

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

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, #4f46e5, #ec4899);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    /* Required rule: nav-links gap set to 0 */
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 0;
    }

    .nav-links li a {
      padding: 8px 14px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      display: block;
      border-radius: 6px;
    }

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

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

    /* Mobile Nav Toggle */
    .menu-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 4px;
    }

    .menu-toggle span {
      width: 24px;
      height: 3px;
      background-color: var(--text-main);
      border-radius: 2px;
      transition: all 0.3s ease;
    }

    /* HERO SECTION - Strictly No Images */
    .hero-section {
      padding: 90px 0 70px;
      background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, rgba(236, 72, 153, 0.05) 50%, rgba(248, 250, 252, 1) 100%);
      text-align: center;
      position: relative;
    }

    .hero-badge-group {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 20px;
      background: #ffffff;
      border-radius: 30px;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.12);
      border: 1px solid rgba(79, 70, 229, 0.15);
      margin-bottom: 24px;
    }

    .badge-dot {
      width: 10px;
      height: 10px;
      background-color: var(--accent-pink);
      border-radius: 50%;
      box-shadow: 0 0 10px var(--accent-pink);
    }

    .hero-badge-text {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-color);
    }

    /* H1 rewritten <= 20 chars */
    .hero-h1 {
      font-size: 42px;
      font-weight: 900;
      color: #111827;
      margin-bottom: 20px;
      letter-spacing: -1px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #4f46e5 0%, #ec4899 50%, #06b6d4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 36px;
      line-height: 1.7;
    }

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

    .hero-stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .stat-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px 16px;
      box-shadow: var(--shadow-sm);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: rgba(99, 102, 241, 0.3);
    }

    .stat-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary-color);
      margin-bottom: 4px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--text-light);
      font-weight: 500;
    }

    /* Standard Sections styling */
    .section-padding {
      padding: 80px 0;
    }

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

    .bg-soft {
      background-color: var(--bg-soft-gray);
    }

    /* Cards Grid */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }

    /* Feature & Service Card */
    .vivid-card {
      background: #ffffff;
      border-radius: 18px;
      padding: 32px 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .vivid-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, #4f46e5, #ec4899);
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .vivid-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

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

    .card-icon-box {
      width: 56px;
      height: 56px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(79,70,229,0.1), rgba(236,72,153,0.1));
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 800;
      margin-bottom: 20px;
    }

    .card-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: #111827;
    }

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

    /* Models Tag Cloud */
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 1000px;
      margin: 0 auto;
    }

    .model-tag {
      padding: 8px 18px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 30px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: 0 2px 6px rgba(0,0,0,0.02);
      transition: all 0.25s ease;
    }

    .model-tag:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      transform: scale(1.05);
      box-shadow: 0 4px 12px rgba(79,70,229,0.15);
    }

    /* Workflow Steps */
    .step-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .step-item {
      background: #ffffff;
      padding: 28px 24px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      text-align: center;
      position: relative;
    }

    .step-number {
      width: 42px;
      height: 42px;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-pink));
      color: #ffffff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
      margin: 0 auto 16px;
    }

    /* Comparison Table Component */
    .comparison-table-wrap {
      overflow-x: auto;
      background: #ffffff;
      border-radius: 18px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 700px;
    }

    .comparison-table th, .comparison-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-color);
    }

    .comparison-table th {
      background: var(--bg-soft-gray);
      font-weight: 700;
      color: #111827;
    }

    .comparison-table tr:last-child td {
      border-bottom: none;
    }

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

    .rating-box {
      background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(236,72,153,0.1));
      border: 1px solid rgba(245,158,11,0.3);
      padding: 20px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: space-around;
      margin-bottom: 30px;
    }

    .score-title {
      font-size: 18px;
      font-weight: 700;
      color: #111827;
    }

    .score-val {
      font-size: 36px;
      font-weight: 900;
      color: var(--accent-amber);
    }

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

    .token-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      padding: 28px 24px;
      text-align: center;
      transition: all 0.3s ease;
    }

    .token-card:hover {
      border-color: var(--primary-color);
      box-shadow: var(--shadow-md);
    }

    .token-price {
      font-size: 32px;
      font-weight: 900;
      color: var(--accent-green);
      margin: 12px 0;
    }

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

    .media-img-wrap {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background-color: var(--bg-soft-gray);
    }

    .ai-page-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .media-card:hover .ai-page-image {
      transform: scale(1.06);
    }

    .media-content {
      padding: 20px;
    }

    /* Customer Reviews */
    .review-card {
      background: #ffffff;
      border-radius: 16px;
      padding: 28px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .reviewer-info {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }

    .avatar-circle {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-cyan));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 18px;
    }

    .reviewer-name {
      font-weight: 700;
      color: #111827;
      font-size: 16px;
    }

    .reviewer-role {
      font-size: 13px;
      color: var(--text-light);
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 14px;
      overflow: hidden;
    }

    .faq-header {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: #111827;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }

    .faq-header::after {
      content: "+";
      font-size: 20px;
      color: var(--primary-color);
      transition: transform 0.2s ease;
    }

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

    .faq-body {
      padding: 0 24px 20px;
      display: none;
      color: var(--text-muted);
      font-size: 15px;
      border-top: 1px dashed var(--border-color);
      padding-top: 16px;
    }

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

    /* Contact Form & Info */
    .contact-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      background: #ffffff;
      border-radius: 24px;
      padding: 40px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
    }

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

    .form-label {
      display: block;
      font-weight: 600;
      margin-bottom: 8px;
      color: #111827;
      font-size: 14px;
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 10px;
      font-size: 15px;
      background-color: var(--bg-main);
      color: var(--text-main);
      outline: none;
      transition: border-color 0.2s ease;
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--primary-color);
      background-color: #ffffff;
    }

    .qr-box {
      text-align: center;
      padding: 24px;
      background: var(--bg-soft-gray);
      border-radius: 16px;
      margin-top: 20px;
    }

    .qr-box img {
      max-width: 160px;
      height: auto;
      border-radius: 12px;
      border: 3px solid #ffffff;
      box-shadow: var(--shadow-sm);
    }

    /* Footer Safety Color System */
    .site-footer {
      background-color: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
    }

    .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;
      margin-bottom: 20px;
    }

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

    .footer-links a {
      color: #94a3b8;
      font-size: 14px;
    }

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

    .friend-links-wrap {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 24px;
    }

    .friend-links-title {
      color: #cbd5e1;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .friend-links-list {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friend-links-list a {
      color: #94a3b8;
      font-size: 13px;
    }

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

    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      text-align: center;
      font-size: 13px;
      color: #64748b;
    }

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

    .float-btn {
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-color), var(--accent-pink));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(0,0,0,0.2);
      cursor: pointer;
      font-size: 20px;
      transition: transform 0.2s ease;
    }

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

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

    @media (max-width: 768px) {
      .menu-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-links.active {
        display: flex;
      }
      .hero-h1 {
        font-size: 28px;
      }
      .grid-3, .grid-2, .grid-4, .token-grid {
        grid-template-columns: 1fr;
      }
      .contact-wrapper {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .step-flow {
        grid-template-columns: 1fr;
      }
    }