* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            background: linear-gradient(135deg, #236fa1 0%, #1a4f75 100%);
            color: white;
            padding: 30px 20px;
            text-align: center;
            border-radius: 8px;
            margin-bottom: 30px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: relative;
        }
        
        .logo {
            position: absolute;
            top: 20px;
            left: 20px;
            font-size: 24px;
            font-weight: bold;
        }
        
        header h1 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            margin-top: 10px;
        }
        
        header p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .content-card {
            background: white;
            border-radius: 8px;
            padding: 25px;
            margin-bottom: 25px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        h2 {
            color: #236fa1;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eaeaea;
        }
        
        h3 {
            color: #1a4f75;
            margin: 20px 0 15px;
        }
        
        p {
            margin-bottom: 15px;
            font-size: 1.05rem;
        }
        
        .highlight {
            color: #236fa1;
            font-weight: 600;
        }
        
        .two-columns {
            display: flex;
            gap: 30px;
            margin: 25px 0;
        }
        
        .column {
            flex: 1;
        }
        
        .factor-list {
            background: #f1f8ff;
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid #236fa1;
        }
        
        .factor-item {
            margin-bottom: 20px;
        }
        
        .factor-item h4 {
            color: #236fa1;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }
        
        .factor-item h4 i {
            margin-right: 10px;
        }
        
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            font-size: 0.95rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }
        
        th, td {
            padding: 12px 15px;
            text-align: left;
            border: 1px solid #ddd;
        }
        
        th {
            background-color: #236fa1;
            color: white;
            font-weight: 600;
            position: sticky;
            top: 0;
        }
        
        tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        
        tr:hover {
            background-color: #f1f8ff;
        }
        
        .product-image {
            text-align: center;
            margin: 30px 0;
        }
        
        .product-image img {
            max-width: 100%;
            border-radius: 8px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .conclusion {
            background: linear-gradient(to right, #f1f8ff, #e3f2fd);
            padding: 25px;
            border-radius: 8px;
            margin: 30px 0;
            border-left: 4px solid #236fa1;
        }
        
        .specs-highlight {
            background: #f1f8ff;
            padding: 20px;
            border-radius: 8px;
            margin: 20px 0;
        }
        
        .specs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 15px;
            margin: 20px 0;
        }
        
        .spec-card {
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
            border-top: 3px solid #236fa1;
        }
        
        .spec-card h4 {
            color: #236fa1;
            margin-bottom: 10px;
        }
        
        .contact-bar {
            background: linear-gradient(135deg, #236fa1 0%, #1a4f75 100%);
            color: white;
            padding: 15px;
            text-align: center;
            border-radius: 8px;
            margin-top: 40px;
        }
        
        .contact-bar a {
            color: white;
            text-decoration: none;
            font-weight: bold;
            margin: 0 10px;
        }
        
        @media (max-width: 768px) {
            .two-columns {
                flex-direction: column;
            }
            
            .specs-grid {
                grid-template-columns: 1fr;
            }
            
            th, td {
                padding: 8px;
                font-size: 0.85rem;
            }
            
            header h1 {
                font-size: 2rem;
            }
            
            .logo {
                position: static;
                margin-bottom: 15px;
                text-align: center;
            }
        }