.product-details-content .star {
                display: flex;
                align-items: center;
                margin-bottom: 15px;
            }
            
            .product-details-content .star span {
                background: #4CAF50;
                color: white;
                padding: 3px 8px;
                border-radius: 4px;
                margin-right: 10px;
                font-size: 14px;
                font-weight: 600;
            }
            
            .product-details-content .star a {
                color: #FFD700;
                margin-right: 2px;
            }
            
            .product-details-content .star .text-color {
                color: #666;
                margin-left: 8px;
                text-decoration: none;
            }
            
            .paper-options {
                margin: 20px 0;
            }
            
            .paper-options h5 {
                margin-bottom: 10px;
                font-weight: 600;
            }
            
            .paper-option {
                display: flex;
                align-items: center;
                margin-bottom: 8px;
            }
            
            .paper-option input {
                margin-right: 10px;
            }
            
            .quantity-options {
                margin: 20px 0;
            }
            
            .quantity-options h5 {
                margin-bottom: 10px;
                font-weight: 600;
            }
            
            .quantity-select {
                display: flex;
                flex-wrap: wrap;
                gap: 10px;
            }
            
            .quantity-option {
                padding: 8px 15px;
                border: 1px solid #ddd;
                border-radius: 4px;
                cursor: pointer;
                transition: all 0.3s;
            }
            
            .quantity-option:hover, .quantity-option.active {
                background: #4b6cb7;
                color: white;
                border-color: #4b6cb7;
            }
            
            .design-option {
                margin: 20px 0;
            }
            
            .design-option h5 {
                margin-bottom: 10px;
                font-weight: 600;
            }
            
            .design-options {
                display: flex;
                gap: 15px;
            }
            
            .design-options label {
                display: flex;
                align-items: center;
                cursor: pointer;
            }
            
            .design-options input {
                margin-right: 5px;
            }
            
            .upload-design {
                margin: 15px 0;
                display: none;
            }
            
            .upload-design.active {
                display: block;
            }
            
            .file-upload {
                border: 2px dashed #ddd;
                padding: 20px;
                text-align: center;
                border-radius: 8px;
                margin-bottom: 15px;
            }
            
            .file-upload p {
                margin: 10px 0 5px;
                color: #666;
            }
            
            .file-upload-btn {
                display: inline-block;
                padding: 8px 15px;
                background: #f1f5f9;
                border-radius: 4px;
                cursor: pointer;
                margin-top: 10px;
            }
            
            .price-section {
                margin: 25px 0;
                padding: 15px;
                background: #f9f9f9;
                border-radius: 8px;
            }
            
            .price-section h3 {
                color: #4b6cb7;
                font-weight: 700;
            }
            
            .action-buttons {
                display: flex;
                gap: 15px;
                margin: 20px 0;
            }
            
            .add-to-cart {
                background: #4b6cb7;
                color: white;
                border: none;
                padding: 12px 25px;
                border-radius: 6px;
                font-weight: 600;
                cursor: pointer;
                flex: 1;
                transition: background 0.3s;
            }
            
            .add-to-cart:hover {
                background: #3a5795;
            }
            
            .buy-now {
                background: #FF5722;
                color: white;
                border: none;
                padding: 12px 25px;
                border-radius: 6px;
                font-weight: 600;
                cursor: pointer;
                flex: 1;
                transition: background 0.3s;
            }
            
            .buy-now:hover {
                background: #E64A19;
            }
            
            .online-indicator {
                display: flex;
                align-items: center;
                color: #4CAF50;
                font-weight: 600;
                margin-top: 15px;
            }
            
            .online-indicator::before {
                content: "";
                display: inline-block;
                width: 10px;
                height: 10px;
                background: #4CAF50;
                border-radius: 50%;
                margin-right: 8px;
            }