/* Global Clean Neon Light Theme Styles */
    :root {
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-accent: #f1f5f9;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #64748b;
      --neon-cyan: #06b6d4;
      --neon-purple: #8b5cf6;
      --neon-pink: #ec4899;
      --primary: #4f46e5;
      --primary-hover: #4338ca;
      --border-color: #e2e8f0;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
      --shadow-neon: 0 10px 25px -5px rgba(6, 182, 212, 0.15), 0 8px 10px -6px rgba(139, 92, 246, 0.1);
      --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-main);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      background: radial-gradient(circle at 50% 0%, rgba(6, 182, 212, 0.05), transparent 40%),
                  radial-gradient(circle at 90% 20%, rgba(139, 92, 246, 0.04), transparent 40%),
                  var(--bg-main);
      min-height: 100vh;
      overflow-x: hidden;
    }

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

    a:hover {
      color: var(--neon-purple);
    }

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

    /* Section Structure */
    section {
      padding: 80px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      margin-bottom: 50px;
    }

    .section-tag {
      display: inline-block;
      padding: 4px 14px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(139, 92, 246, 0.1));
      color: var(--neon-purple);
      border: 1px solid rgba(139, 92, 246, 0.2);
      border-radius: 20px;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 700px;
      margin: 0 auto;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .logo-box {
      display: flex;
      align-items: center;
      gap: 12px;
    }

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

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

    .nav-links li a {
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-main);
      border-radius: 6px;
    }

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

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 8px;
      cursor: pointer;
      transition: var(--transition);
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--neon-cyan), var(--primary));
      color: #ffffff;
      box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(6, 182, 212, 0.35);
      color: #ffffff;
    }

    .btn-outline {
      background: transparent;
      color: var(--text-main);
      border: 1px solid var(--border-color);
    }

    .btn-outline:hover {
      background: var(--bg-accent);
      border-color: var(--primary);
    }

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

    /* Hero Section (No Image Allowed!) */
    .hero-section {
      padding: 100px 0 80px;
      background: radial-gradient(circle at 50% 30%, rgba(6, 182, 212, 0.08), rgba(139, 92, 246, 0.03) 70%);
      text-align: center;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      background: #ffffff;
      border: 1px solid rgba(6, 182, 212, 0.3);
      border-radius: 30px;
      font-size: 13px;
      color: var(--primary);
      box-shadow: var(--shadow-sm);
      margin-bottom: 24px;
    }

    .hero-badge span {
      display: inline-block;
      width: 8px;
      height: 8px;
      background-color: var(--neon-cyan);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--neon-cyan);
    }

    .hero-title {
      font-size: 40px;
      font-weight: 900;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.8px;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      margin-bottom: 36px;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .btn-hero-official {
      padding: 14px 32px;
      font-size: 16px;
      font-weight: 700;
      background: linear-gradient(135deg, #06b6d4 0%, #4f46e5 50%, #8b5cf6 100%);
      color: #ffffff !important;
      border-radius: 10px;
      box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
    }

    .btn-hero-official:hover {
      transform: translateY(-2px) scale(1.02);
      box-shadow: 0 12px 30px rgba(139, 92, 246, 0.4);
    }

    /* Hero Metrics Grid */
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

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

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-neon);
      border-color: rgba(6, 182, 212, 0.4);
    }

    .metric-num {
      font-size: 28px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      margin-bottom: 4px;
    }

    .metric-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    /* Standard Cards & Grid */
    .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: 24px;
    }

    .feature-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 28px;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-neon);
      border-color: rgba(139, 92, 246, 0.3);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(139, 92, 246, 0.12));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 18px;
    }

    .feature-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-main);
    }

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

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

    .rating-banner {
      background: linear-gradient(135deg, #0f172a, #1e293b);
      color: #ffffff;
      padding: 24px 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }

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

    .score-num {
      font-size: 42px;
      font-weight: 900;
      color: #38bdf8;
    }

    .score-stars {
      color: #f59e0b;
      font-size: 20px;
    }

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

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

    .comparison-table th, .comparison-table td {
      padding: 16px 24px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

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

    .comparison-table tr:hover {
      background-color: rgba(6, 182, 212, 0.02);
    }

    .tag-highlight {
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      background: rgba(6, 182, 212, 0.1);
      color: var(--neon-cyan);
      font-weight: 600;
      font-size: 12px;
    }

    /* Models Cloud / Chips */
    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 24px;
    }

    .model-chip {
      padding: 8px 16px;
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-main);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .model-chip:hover {
      border-color: var(--neon-cyan);
      color: var(--neon-cyan);
      transform: translateY(-2px);
    }

    /* FAQ Accordion */
    .faq-grid {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 10px;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-question {
      padding: 18px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

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

    .faq-item.active {
      border-color: rgba(139, 92, 246, 0.4);
      box-shadow: var(--shadow-sm);
    }

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

    .faq-toggle {
      font-size: 20px;
      transition: transform 0.3s;
    }

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

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

    .review-text {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 20px;
      font-style: italic;
    }

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

    .avatar-placeholder {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 14px;
    }

    .user-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .user-info p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* Form Section */
    .form-container {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius);
      padding: 40px;
      box-shadow: var(--shadow-md);
      max-width: 800px;
      margin: 0 auto;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group.full-width {
      grid-column: span 2;
    }

    .form-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
    }

    .form-input, .form-select, .form-textarea {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      background-color: var(--bg-main);
      color: var(--text-main);
      outline: none;
      transition: var(--transition);
    }

    .form-input:focus, .form-select:focus, .form-textarea:focus {
      border-color: var(--neon-cyan);
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15);
    }

    /* Image Gallery / Case Showcase */
    .case-card {
      background: var(--bg-card);
      border-radius: var(--radius);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-img-holder {
      width: 100%;
      height: 200px;
      overflow: hidden;
      background-color: var(--bg-accent);
    }

    .case-img-holder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }

    .case-card:hover .case-img-holder img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 20px;
    }

    .case-title {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .case-desc {
      font-size: 13px;
      color: var(--text-muted);
    }

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

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

    .footer-brand h3 {
      color: #ffffff;
      font-size: 20px;
      margin-bottom: 16px;
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.6;
      margin-bottom: 20px;
    }

    .footer-col h4 {
      color: #ffffff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }

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

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

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

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

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

    .qr-box img {
      width: 90px;
      height: 90px;
      border-radius: 8px;
      border: 2px solid #334155;
    }

    .friend-links-box {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
    }

    .friend-links-box span {
      color: #64748b;
      font-size: 13px;
    }

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

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

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

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 20px;
      bottom: 30px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-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;
      color: var(--text-main);
      font-size: 18px;
      border: 1px solid var(--border-color);
      cursor: pointer;
      transition: var(--transition);
    }

    .float-btn:hover {
      background: var(--neon-cyan);
      color: #ffffff;
      transform: translateY(-2px);
    }

    /* Article List Styling */
    .article-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

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

    .article-item:hover {
      border-color: var(--neon-cyan);
      transform: translateX(4px);
    }

    .article-item a {
      color: var(--text-main);
      font-weight: 600;
      font-size: 15px;
    }

    /* Responsive Design */
    @media (max-width: 992px) {
      .grid-4, .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .hero-title {
        font-size: 32px;
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
      }
      .nav-links.active {
        display: flex;
      }
      .mobile-menu-btn {
        display: block;
      }
      .grid-4, .grid-3, .grid-2 {
        grid-template-columns: 1fr;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full-width {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .rating-banner {
        flex-direction: column;
        text-align: center;
      }
    }