.product-description {         font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;         color: #333;         line-height: 1.6;         margin: 0;         padding: 0;         background-color: #ffffff;         font-size: 16px;     }     .features {         list-style: none;         padding: 0;         margin-bottom: 20px;     }     .features li {         margin: 8px 0;         position: relative;         padding-left: 25px;     }     .features li:before {         content: "✓";         position: absolute;         left: 0;         color: #28a745;         font-weight: bold;     }     .spec-table {         width: 100%;         border-collapse: collapse;         margin-top: 15px;     }     .spec-table th, .spec-table td {         border: 1px solid #e0e0e0;         padding: 12px;         text-align: center;     }     .spec-table th {         background-color: #f8f9fa;         font-weight: 600;     }