/* Modern Vibrant Neon Theme on Soft Light Canvas */
        :root {
            --primary: #6366f1;
            --primary-neon: #4f46e5;
            --secondary-neon: #06b6d4;
            --accent-neon: #ec4899;
            --bg-canvas: #f8fafc;
            --bg-card: #ffffff;
            --bg-subtle: #f1f5f9;
            --text-dark: #0f172a;
            --text-regular: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --border-highlight: rgba(99, 102, 241, 0.3);
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
            --shadow-neon: 0 10px 30px -5px rgba(99, 102, 241, 0.15);
            --container-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        body {
            background-color: var(--bg-canvas);
            color: var(--text-regular);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        /* Layout Container */
        .ai-container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Neon Highlights & Typography */
        h1, h2, h3, h4 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
        }

        .neon-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
            color: var(--primary-neon);
            border: 1px solid rgba(99, 102, 241, 0.2);
            margin-bottom: 12px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2rem;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #0f172a 0%, #4f46e5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-header p {
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Component Styles */
        .neon-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .neon-card:hover {
            border-color: var(--border-highlight);
            transform: translateY(-4px);
            box-shadow: var(--shadow-neon);
        }

        .neon-btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
            color: #ffffff !important;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(79, 70, 229, 0.3);
            border: none;
            cursor: pointer;
        }

        .neon-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(79, 70, 229, 0.45);
        }

        .neon-btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #ffffff;
            color: var(--text-dark) !important;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            cursor: pointer;
        }

        .neon-btn-secondary:hover {
            border-color: var(--primary-neon);
            color: var(--primary-neon) !important;
            transform: translateY(-2px);
        }

        /* 1. 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: 72px;
        }

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

        .ai-page-logo {
            max-height: 40px;
            width: auto;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .main-nav a {
            color: var(--text-regular);
            font-size: 0.95rem;
            font-weight: 500;
        }

        .main-nav a:hover {
            color: var(--primary-neon);
        }

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

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-dark);
            cursor: pointer;
        }

        /* 2. Hero Section (NO IMAGES PER RULE) */
        .hero-section {
            padding: 80px 0 60px 0;
            background: radial-gradient(circle at 50% 20%, rgba(99, 102, 241, 0.08) 0%, rgba(6, 182, 212, 0.03) 50%, transparent 100%);
            text-align: center;
        }

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

        .hero-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.7;
        }

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

        .hero-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .stat-card {
            background: #ffffff;
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .stat-val {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary-neon);
            margin-bottom: 4px;
        }

        .stat-lbl {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* Section Layout Common */
        .section-padding {
            padding: 70px 0;
        }

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

        /* 3. Models & Platform Grid */
        .models-tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .model-chip {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 6px 16px;
            border-radius: 99px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-regular);
            transition: all 0.2s;
        }

        .model-chip:hover {
            border-color: var(--primary-neon);
            color: var(--primary-neon);
            box-shadow: 0 2px 10px rgba(99, 102, 241, 0.12);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
            color: var(--primary-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: bold;
            margin-bottom: 16px;
        }

        /* 4. Comparison Table */
        .rating-box {
            background: linear-gradient(135deg, #4f46e5, #06b6d4);
            color: #ffffff;
            padding: 24px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
        }

        .rating-score {
            font-size: 2.2rem;
            font-weight: 800;
        }

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

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background: #f8fafc;
            font-weight: 700;
            color: var(--text-dark);
        }

        .highlight-col {
            background: rgba(99, 102, 241, 0.03);
            font-weight: 600;
            color: var(--primary-neon);
        }

        /* 5. Case Showcase & Media */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .case-card {
            overflow: hidden;
        }

        .case-img-wrap {
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 16px;
        }

        .ai-page-image {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
        }

        .media-flex-row {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        /* 6. Training & Certifications */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
        }

        .cert-chip {
            background: #ffffff;
            border: 1px dashed var(--primary-neon);
            padding: 16px;
            border-radius: 12px;
            text-align: center;
            font-weight: 600;
            color: var(--text-dark);
        }

        /* 7. Reviews Grid */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }

        .author-role {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 8. FAQ Accordion */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
        }

        .faq-header {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.2rem;
            color: var(--primary-neon);
        }

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

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            padding: 0 24px 20px 24px;
            max-height: 300px;
        }

        /* 9. Contact & Form */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            margin-bottom: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: var(--bg-canvas);
            font-size: 0.95rem;
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary-neon);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

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

        .qr-card {
            text-align: center;
            background: #ffffff;
            padding: 20px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            margin-top: 20px;
        }

        .qr-card img {
            max-width: 160px;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        /* Articles & Footer */
        .articles-list {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .article-link-tag {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.88rem;
        }

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

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

        .footer-col h4 {
            color: #ffffff;
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: #94a3b8;
            font-size: 0.9rem;
        }

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

        .friend-links-bar {
            border-top: 1px solid #1e293b;
            padding-top: 20px;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.88rem;
        }

        .friend-links-bar a {
            color: #64748b;
        }

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

        .copyright-text {
            text-align: center;
            margin-top: 30px;
            font-size: 0.85rem;
            color: #475569;
        }

        /* Floating Widget */
        .floating-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background: #ffffff;
            border-radius: 50px;
            padding: 10px 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            gap: 10px;
            border: 1px solid var(--border-color);
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
            .reviews-grid { grid-template-columns: 1fr; }
            .cases-grid { grid-template-columns: 1fr; }
            .contact-layout { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr 1fr; }
            .media-flex-row { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .main-nav { display: none; }
            .mobile-toggle { display: block; }
            .hero-title { font-size: 1.8rem; }
            .hero-stats-grid { grid-template-columns: 1fr; }
            .footer-inner { grid-template-columns: 1fr; }
        }