I need a developer to help me build a website from scratch. It should be built based on WordPress and a website template needs to be created. This template should be a universal one, and then many sub-templates will need to be developed based on it. After that, all our templates can be further developed and modified based on this base template. Therefore, the strict requirement is: the underlying functions should be uniformly fixed, while the front-end appearance should be completely free. The goal is to ensure that subsequent development can be infinitely replicated and carried out in batches, with the appearance being able to be differentiated and without any limitations for modification. The core is that this template serves as the basic framework version, serving as the standard for general functions and structure. The requirement is to completely separate functions and styles, modularize the code, have high scalability, and allow all subsequent websites to independently modify the UI, layout, sections, styles, without affecting the core functions. Structure: Fixed layout for product detail pages, fields, display logic, unified fields: support batch import of products from Excel, rules for calling product lists, filtering logic, data output format, product upload/import functions, rules for the backend editor. System structure: Fixed sections: categories, products, blog, about us, contact us Unified plugins, functional modules, database structure Unified backend calling rules, data interfaces. Allow complete customization: homepage layout, order of sections, number of sections, display form, navigation, UI, style, position, display effect, color, font, buttons, icons, rounded corners, animations, internal page layout, layout, carousel, etc. These need to be freely modified during subsequent development. Do not hard-code width, height, position, etc. in the style. Do not write visual design directly in the functional code. All pages support modular replacement, movement, and deletion. Ensure that subsequent development can produce completely different visual websites and can be fully copied and migrated.