Last updated: July 31, 2026
Essential storage
The website uses limited browser storage for language selection, privacy choices and secure administration. These functions support navigation, security and the choices you make.
Optional Google measurement
Google Ads measurement is configured with Consent Mode. Advertising and analytics storage remain denied unless you choose “Allow measurement.” No fake price, review or purchase information is sent.
Changing your choice
You can clear this website’s local storage or browser site data to reset your choice. The privacy banner will appear again on your next visit.
Contact
Questions about website storage can be sent to sjzchengyu@163.com.