Urgent WordPress Home Page Redesign

My current website is for selling cigarettes. However, the UI is very poor. I previously modified it using a template, but the company reported that it was not satisfactory. Now, I will provide a new template and you can simply replace the current one. That means I only need to change the visual effects, without needing to change any data, including products, etc. I require you to replace the current template with the new one within one day. The website's payment logic, products, and product images cannot be modified. One issue to note is that when users click on a product on my website, they directly enter the shopping cart. Currently, the products do not have detail pages, so the final effect needs to include product detail pages. I need to be very familiar and proficient in WordPress front-end development.