Last updated: 5 August 2026
1. Scope
This website provides professional information, articles, article search and contact details. It does not currently provide user accounts, online payment or matter-file upload.
2. Technical information
Hosting, network and security services may process an IP address, browser and device type, request time, visited page, referring page, error logs and cookies or similar identifiers necessary for secure operation. This supports page delivery, security, troubleshooting and service stability.
Article search uses URL parameters. The website does not create a user account or intentionally associate search history with an identified visitor.
To understand overall page use, the website may retain a daily aggregate count by Beijing-time date, page path and page type in its controlled hosting database. This aggregate does not retain an IP address, User-Agent, query term or complete referring address; it is available only in the private administration area and is not shown on public pages.
3. Contact outside the website
If you contact Liu Mengyang by telephone, WeChat or an official account, the platform’s own privacy terms also apply. Before an initial discussion, remove unrelated identity documents, payment data, health information, information about minors, trade secrets and other sensitive material.
4. Retention, third-party links and your requests
Technical logs are retained only as reasonably required by hosting and security operations. External links are governed by the third party’s own rules. Requests concerning access, correction or deletion can be made through the contact page and will be handled according to whether the information is controlled by this website, identity-verification needs and applicable law.