* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #ffffff;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Header */
        header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .logo img {
            height: 50px;
            width: auto;
            object-fit: contain;
        }
        
        .logo-separator {
            width: 2px;
            height: 40px;
            background: #e2e8f0;
        }
        
        .cta-header {
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            padding: 12px 30px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(37,99,235,0.3);
        }
        
        .cta-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37,99,235,0.4);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            padding: 80px 0 100px;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="%232563eb" opacity="0.05"/></svg>');
            background-size: 300px;
            opacity: 0.3;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-text h1 {
            font-size: 48px;
            font-weight: 800;
            color: #1e293b;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero-text h1 .highlight {
            color: #2563eb;
            position: relative;
        }
        
        .hero-text p {
            font-size: 20px;
            color: #64748b;
            margin-bottom: 30px;
        }
        
        .hero-features {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-bottom: 40px;
        }
        
        .hero-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 16px;
            color: #475569;
        }
        
        .hero-feature::before {
            content: '✓';
            background: #10b981;
            color: white;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        
        .hero-cta {
            display: inline-block;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            padding: 18px 50px;
            border-radius: 12px;
            text-decoration: none;
            font-size: 18px;
            font-weight: 700;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(37,99,235,0.3);
        }
        
        .hero-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(37,99,235,0.4);
        }
        
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .qr-code-container {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .qr-code-box {
            background: white;
            padding: 40px;
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.15);
            text-align: center;
            max-width: 400px;
            border: 3px solid #e0f2fe;
        }
        
        .qr-code-image {
            width: 280px;
            height: 280px;
            margin-bottom: 25px;
            border-radius: 12px;
            object-fit: contain;
            background: white;
        }
        
        .scan-icon {
            font-size: 48px;
            margin-bottom: 15px;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
        }
        
        .qr-code-text h3 {
            font-size: 24px;
            color: #1e293b;
            margin-bottom: 10px;
            font-weight: 700;
        }
        
        .qr-code-text p {
            font-size: 15px;
            color: #64748b;
            line-height: 1.6;
        }
        
        /* Section Styles */
        section {
            padding: 80px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 40px;
            font-weight: 800;
            color: #1e293b;
            margin-bottom: 15px;
        }
        
        .section-title p {
            font-size: 18px;
            color: #64748b;
            max-width: 600px;
            margin: 0 auto;
        }
        
        /* Advantages */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background: #fff;
            padding: 40px 30px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            transition: all 0.3s ease;
            border: 1px solid #e2e8f0;
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
        }
        
        .advantage-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            margin-bottom: 20px;
        }
        
        .advantage-card h3 {
            font-size: 22px;
            color: #1e293b;
            margin-bottom: 12px;
            font-weight: 700;
        }
        
        .advantage-card p {
            color: #64748b;
            line-height: 1.7;
        }
        
        /* Comparison Section */
        .comparison {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        }
        
        .comparison-table {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0,0,0,0.08);
        }
        
        .comparison-header {
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            padding: 30px;
            text-align: center;
        }
        
        .comparison-header h3 {
            font-size: 28px;
            margin-bottom: 10px;
        }
        
        .comparison-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .comparison-row:last-child {
            border-bottom: none;
        }
        
        .comparison-label,
        .comparison-value {
            padding: 25px 30px;
        }
        
        .comparison-label {
            font-weight: 600;
            color: #1e293b;
            background: #f8fafc;
        }
        
        .comparison-value {
            color: #475569;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .check-icon {
            color: #10b981;
            font-weight: 700;
            font-size: 20px;
        }
        
        /* How It Works */
        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-top: 50px;
        }
        
        .step {
            text-align: center;
            position: relative;
        }
        
        .step-number {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            font-weight: 800;
            margin: 0 auto 25px;
            box-shadow: 0 8px 25px rgba(37,99,235,0.3);
        }
        
        .step h3 {
            font-size: 22px;
            color: #1e293b;
            margin-bottom: 15px;
            font-weight: 700;
        }
        
        .step p {
            color: #64748b;
            line-height: 1.7;
        }
        
        /* FAQ */
        .faq {
            background: #fff;
        }
        
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-item {
            background: #f8fafc;
            border-radius: 12px;
            margin-bottom: 20px;
            overflow: hidden;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            box-shadow: 0 4px 15px rgba(0,0,0,0.06);
        }
        
        .faq-question {
            padding: 25px 30px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #1e293b;
            user-select: none;
        }
        
        .faq-toggle {
            font-size: 24px;
            color: #2563eb;
            transition: transform 0.3s ease;
        }
        
        .faq-answer {
            padding: 0 30px 25px;
            color: #64748b;
            line-height: 1.8;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
        }
        
        /* Testimonials */
        .testimonials {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
        }
        
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }
        
        .testimonial-card {
            background: white;
            padding: 35px;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            position: relative;
        }
        
        .testimonial-rating {
            color: #fbbf24;
            font-size: 20px;
            margin-bottom: 15px;
        }
        
        .testimonial-text {
            color: #475569;
            line-height: 1.8;
            margin-bottom: 20px;
            font-style: italic;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 700;
            font-size: 20px;
        }
        
        .author-info h4 {
            font-size: 16px;
            color: #1e293b;
            font-weight: 600;
        }
        
        .author-info p {
            font-size: 14px;
            color: #94a3b8;
        }
        
        /* QR Section */
        .qr-section {
            background: white;
            padding: 80px 0;
        }
        
        .qr-section-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        
        .qr-section-text h2 {
            font-size: 38px;
            font-weight: 800;
            color: #1e293b;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .qr-section-text p {
            font-size: 18px;
            color: #64748b;
            line-height: 1.8;
            margin-bottom: 30px;
        }
        
        .qr-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .qr-feature-item {
            font-size: 16px;
            color: #475569;
            font-weight: 500;
        }
        
        .qr-code-frame {
            background: white;
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(37,99,235,0.15);
            text-align: center;
            border: 3px solid #dbeafe;
        }
        
        .qr-code-frame img {
            width: 100%;
            max-width: 300px;
            height: auto;
            border-radius: 12px;
            margin-bottom: 15px;
        }
        
        .qr-label {
            font-size: 18px;
            font-weight: 700;
            color: #2563eb;
            margin: 0;
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        
        .cta-button {
            display: inline-block;
            background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
            color: white;
            padding: 20px 60px;
            border-radius: 12px;
            text-decoration: none;
            font-size: 20px;
            font-weight: 700;
            transition: all 0.3s ease;
            box-shadow: 0 10px 30px rgba(59,130,246,0.4);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(59,130,246,0.5);
        }
        
        /* Footer */
        footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 60px 0 30px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-about h3 {
            color: white;
            font-size: 24px;
            margin-bottom: 15px;
        }
        
        .footer-about p {
            line-height: 1.8;
            color: #94a3b8;
        }
        
        .footer-column h4 {
            color: white;
            font-size: 18px;
            margin-bottom: 20px;
            font-weight: 600;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 12px;
        }
        
        .footer-column ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-column ul li a:hover {
            color: #2563eb;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #334155;
            color: #64748b;
        }

        .guide-section {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            padding: 80px 0;
        }
        
        .guide-content {
            max-width: 900px;
            margin: 0 auto;
        }
        
        .guide-paragraph {
            background: white;
            padding: 40px;
            border-radius: 16px;
            margin-bottom: 30px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            border-left: 4px solid #2563eb;
            transition: all 0.3s ease;
        }
        
        .guide-paragraph:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
        }
        
        .guide-paragraph h3 {
            font-size: 26px;
            font-weight: 700;
            color: #1e293b;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .guide-paragraph h3::before {
            content: '📖';
            font-size: 28px;
        }
        
        .guide-paragraph p {
            font-size: 17px;
            line-height: 1.9;
            color: #475569;
            text-align: justify;
        }
        
        .guide-paragraph strong {
            color: #2563eb;
            font-weight: 600;
        }
        
        @media (max-width: 768px) {
            .guide-paragraph {
                padding: 25px;
            }
            
            .guide-paragraph h3 {
                font-size: 22px;
            }
            
            .guide-paragraph p {
                font-size: 16px;
            }
        }
        
        /* Responsive */
        @media (max-width: 968px) {
            .hero-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .hero-text h1 {
                font-size: 36px;
            }
            
            .hero-features {
                align-items: center;
            }
            
            .qr-section-content {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .qr-features {
                align-items: center;
            }
            
            .steps {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .comparison-row {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 640px) {
            .header-content {
                flex-direction: column;
                gap: 15px;
            }
            
            .logo {
                flex-direction: column;
                gap: 10px;
            }
            
            .logo-separator {
                width: 40px;
                height: 2px;
            }
            
            .logo img {
                height: 40px;
            }
            
            .hero {
                padding: 50px 0;
            }
            
            .hero-text h1 {
                font-size: 28px;
            }
            
            .qr-code-box {
                padding: 25px;
            }
            
            .qr-code-image {
                width: 220px;
                height: 220px;
            }
            
            .section-title h2 {
                font-size: 28px;
            }
        }