/* CSS Reset & Variables */
        :root {
            --bg-color: #fafbfe;
            --text-color: #1e293b;
            --text-muted: #64748b;
            --white: #ffffff;
            
            /* Neon Trendy Gradients */
            --primary-gradient: linear-gradient(135deg, #ff007f 0%, #7f00ff 50%, #00f0ff 100%);
            --secondary-gradient: linear-gradient(135deg, #00f0ff 0%, #7f00ff 100%);
            --card-hover-border: linear-gradient(90deg, #ff007f, #00f0ff);
            
            --primary-color: #7f00ff;
            --accent-pink: #ff007f;
            --accent-cyan: #00f0ff;
            
            --container-width: 1200px;
            --border-radius: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        .section-padding {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            font-size: 0.95rem;
        }

        .btn-gradient {
            background: var(--primary-gradient);
            color: var(--white);
            box-shadow: 0 4px 15px rgba(127, 0, 255, 0.3);
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(127, 0, 255, 0.4);
        }

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

        .btn-outline:hover {
            background: var(--primary-color);
            color: var(--white);
            transform: translateY(-2px);
        }

        /* Badges */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            background: rgba(127, 0, 255, 0.1);
            color: var(--primary-color);
            margin-bottom: 16px;
        }

        /* Header & Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid rgba(127, 0, 255, 0.08);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
        }

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

        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
        }

        .nav-menu a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-color);
            position: relative;
            padding: 6px 0;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-gradient);
            transition: var(--transition);
        }

        .nav-menu a:hover::after {
            width: 100%;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
        }

        .mobile-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-color);
            transition: var(--transition);
        }

        /* Hero Section (No Image, Vibrant Style) */
        .hero {
            padding: 160px 0 100px;
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(255, 0, 127, 0.05) 0%, rgba(127, 0, 255, 0.05) 45%, rgba(0, 240, 255, 0.03) 90%);
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            background: var(--primary-gradient);
            filter: blur(120px);
            opacity: 0.15;
            top: -50px;
            right: -50px;
            border-radius: 50%;
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.02em;
        }

        .hero p.lead {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 35px;
            line-height: 1.7;
        }

        .hero-btn-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

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

        .metric-card {
            background: var(--white);
            border: 1px solid rgba(127, 0, 255, 0.06);
            border-radius: var(--border-radius);
            padding: 24px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: rgba(127, 0, 255, 0.2);
            box-shadow: 0 8px 30px rgba(127, 0, 255, 0.06);
        }

        .metric-number {
            font-size: 2.2rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* Platform Introduction Section */
        .intro-section {
            background: var(--white);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .intro-text p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .intro-features {
            list-style: none;
        }

        .intro-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .intro-features li::before {
            content: '✓';
            color: var(--accent-pink);
            font-weight: bold;
        }

        .intro-visual {
            position: relative;
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.03) 0%, rgba(0, 240, 255, 0.03) 100%);
            border-radius: var(--border-radius);
            padding: 40px;
            border: 1px solid rgba(127, 0, 255, 0.1);
        }

        .visual-item {
            background: var(--white);
            border-radius: 12px;
            padding: 16px;
            margin-bottom: 16px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            display: flex;
            align-items: center;
            gap: 15px;
            border-left: 4px solid var(--primary-color);
        }

        .visual-item:last-child {
            margin-bottom: 0;
        }

        .visual-icon {
            font-size: 1.5rem;
        }

        .visual-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

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

        /* AIGC Service Grid */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 35px 24px;
            border: 1px solid rgba(127, 0, 255, 0.05);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-gradient);
            transform: scaleX(0);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 40px rgba(127, 0, 255, 0.08);
            border-color: rgba(127, 0, 255, 0.15);
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.1) 0%, rgba(127, 0, 255, 0.1) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Model Badge Cloud */
        .models-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-top: 30px;
        }

        .model-tag {
            background: var(--white);
            border: 1px solid rgba(0, 0, 0, 0.05);
            border-radius: 30px;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-color);
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--accent-pink);
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.05) 0%, rgba(127, 0, 255, 0.05) 100%);
            transform: scale(1.05);
        }

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

        .step-item {
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            margin: 0 auto 16px;
            border: 4px solid var(--white);
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Cases Grid (With Images) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            border-color: rgba(127, 0, 255, 0.15);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

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

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

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Evaluation Section */
        .eval-wrap {
            background: var(--white);
            border-radius: var(--border-radius);
            border: 1px solid rgba(127, 0, 255, 0.1);
            padding: 40px;
            box-shadow: 0 10px 30px rgba(127,0,0,0.01);
        }

        .eval-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            padding-bottom: 25px;
            border-bottom: 1px solid rgba(0,0,0,0.06);
            margin-bottom: 30px;
        }

        .eval-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .score-num {
            font-size: 3rem;
            font-weight: 900;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .score-stars {
            color: #f59e0b;
            font-size: 1.4rem;
        }

        .eval-table-wrap {
            overflow-x: auto;
        }

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .eval-table th, .eval-table td {
            padding: 16px;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .eval-table th {
            font-weight: 700;
            color: var(--text-color);
            background: rgba(127, 0, 255, 0.02);
        }

        .eval-table td strong {
            color: var(--accent-pink);
        }

        /* Price / Token Comparison Table */
        .token-table-wrap {
            background: var(--white);
            border-radius: var(--border-radius);
            border: 1px solid rgba(0,0,0,0.05);
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

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

        .token-table th, .token-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .token-table th {
            background: rgba(0, 240, 255, 0.05);
            font-weight: 700;
        }

        .token-badge {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 240, 255, 0.1);
            color: #0d9488;
        }

        /* Training Section */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background: var(--white);
            border: 1px solid rgba(127, 0, 255, 0.06);
            border-radius: var(--border-radius);
            padding: 24px 16px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-pink);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.05);
        }

        .training-icon {
            font-size: 2rem;
            margin-bottom: 12px;
            display: inline-block;
        }

        .training-card h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .training-card p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Reviews Grid */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 24px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

        .review-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .review-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 700;
            font-size: 1.1rem;
        }

        .review-user h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .review-user p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .review-body {
            font-size: 0.85rem;
            color: var(--text-color);
            line-height: 1.6;
        }

        /* FAQ Accordion */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--border-radius);
            margin-bottom: 12px;
            border: 1px solid rgba(0,0,0,0.05);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-color);
            cursor: pointer;
        }

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

        .faq-item.active .faq-trigger::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding: 0 24px;
        }

        .faq-item.active .faq-content {
            max-height: 200px;
            padding-bottom: 18px;
        }

        .faq-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Contact & Form Section */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: start;
        }

        .contact-info-panel {
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.02) 0%, rgba(127, 0, 255, 0.02) 100%);
            border: 1px solid rgba(127, 0, 255, 0.1);
            border-radius: var(--border-radius);
            padding: 40px;
        }

        .contact-info-panel h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 24px;
        }

        .contact-meta {
            margin-bottom: 30px;
        }

        .contact-meta-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        .contact-meta-item span.icon {
            font-size: 1.2rem;
            color: var(--primary-color);
        }

        .qr-area {
            display: flex;
            gap: 20px;
            align-items: center;
            background: var(--white);
            padding: 16px;
            border-radius: 12px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .qr-img-wrapper {
            width: 100px;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(0,0,0,0.08);
            border-radius: 8px;
            overflow: hidden;
        }

        .qr-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .qr-desc h4 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .qr-desc p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Form */
        .form-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 40px;
            border: 1px solid rgba(0,0,0,0.05);
            box-shadow: 0 4px 25px rgba(0,0,0,0.02);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            font-weight: 700;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid rgba(0,0,0,0.1);
            outline: none;
            transition: var(--transition);
            font-family: inherit;
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(127, 0, 255, 0.1);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 16px;
            padding-right: 40px;
        }

        /* Articles / Knowledge Base */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 24px;
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent-cyan);
            box-shadow: 0 8px 24px rgba(0, 240, 255, 0.05);
        }

        .article-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .article-link {
            font-size: 0.85rem;
            color: var(--primary-color);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .article-link:hover {
            color: var(--accent-pink);
        }

        /* Footer */
        .footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

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

        .footer-logo-area {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .footer-logo-area img {
            
        }

        .footer-column h5 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-column ul {
            list-style: none;
        }

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

        .footer-column ul li a:hover {
            color: var(--accent-cyan);
        }

        .footer-friends {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
            margin-top: 10px;
        }

        .footer-friends a {
            color: #64748b;
            font-size: 0.8rem;
        }

        .footer-friends a:hover {
            color: var(--white);
        }

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.8rem;
        }

        /* Sticky Service */
        .sticky-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .sticky-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--white);
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(127, 0, 255, 0.1);
            position: relative;
        }

        .sticky-btn:hover {
            background: var(--primary-gradient);
            color: var(--white);
            transform: scale(1.05);
        }

        .sticky-btn .tooltip {
            position: absolute;
            right: 60px;
            background: #0f172a;
            color: var(--white);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 0.75rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .sticky-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--white);
            border: 1px solid rgba(0,0,0,0.1);
            border-radius: 12px;
            padding: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            width: 160px;
            text-align: center;
        }

        .sticky-btn:hover .qr-popover {
            display: block;
        }

        .qr-popover img {
            width: 100%;
            margin-bottom: 6px;
        }

        .qr-popover span {
            font-size: 0.7rem;
            color: var(--text-color);
            font-weight: 600;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .cases-grid, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                display: none;
                border-top: 1px solid rgba(0,0,0,0.05);
            }

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

            .mobile-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .intro-grid {
                grid-template-columns: 1fr;
            }

            .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }

            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .service-grid, .cases-grid, .reviews-grid, .articles-grid {
                grid-template-columns: 1fr;
            }

            .eval-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }