1. Collection of personal information:
1. We may collect personal information that you actively provide when registering, using services, and participating in activities or transactions, including but not limited to basic information such as name, contact number, email, address, and information generated to improve service quality. Browsing history, shopping preferences， and other data.
2. When you use our products or services, we may collect necessary device information, location information， and other log information through technical means such as cookies.

2. Use of personal information:
1. We will use your personal information to provide you with services, process transactions, improve user experience, personalize recommendations, prevent fraud risks, etc.
2. After obtaining your explicit consent, we may use your information for other purposes such as marketing promotion, research and analysis, and other services.

3. Information disclosure and sharing:
1. We will not sell your personal information to any third party unless we obtain your explicit consent or are explicitly required by law.
2. To provide services, we may share your necessary information with partners and suppliers, but we will ensure that these third parties comply with strict confidentiality obligations and only use your information for contractual purposes.

4. Information security:
1. Beihaixun adopts reasonable technical and management measures to prevent your personal information from being accessed, leaked, tampered with, damaged, or lost without authorization.
2. If a personal information security incident unfortunately occurs, we will immediately activate an emergency plan, take remedial measures promptly, and notify and report to you by the requirements of relevant laws and regulations.

5. Your rights you have the right to review, correct, delete your personal information, or withdraw your consent to the use of personal information. You can exercise these rights through our customer service channels.

6. Protection of minors: We will only collect and use the personal information of minors with the consent of their parents or legal guardians, and ensure that the use of information complies with the requirements of relevant laws and regulations.

7. Policy updates: We will update this privacy policy from time to time to reflect changes in our information practices. If there are any major changes, we will notify you through appropriate means (such as website announcement).

8. Contact us: If you have any questions, suggestions, or complaints about this privacy policy, please contact us by email or phone and our customer service team will be happy to serve you.