Privacy Policy

We value your privacy. This Privacy Policy explains how we collect, use, and protect your personal information.

Information Collection

We only collect information you voluntarily provide, including username, learning progress, and performance data. We do not collect any personally identifiable information (such as real name, phone number, address, etc.).

Information Usage

We use the collected information to: provide and improve the learning experience, save learning progress, and display learning statistics and achievements.

Data Storage

Your learning data is stored in your browser's local storage. We do not upload your data to any server. You can clear all information at any time by clearing your browser data.

Cookie Usage

We may use essential cookies to ensure the website functions properly. We use Google Analytics to analyze website usage, which may set analytics cookies.

Third-Party Services

We use the following third-party services: Google Analytics (website analytics), Google AdSense (advertising), and CDN resource loading. These services may collect anonymous usage data.

Children's Privacy

This website is intended for student users. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us so we can delete it.

Policy Updates

We may update this Privacy Policy from time to time. The updated policy will be posted on this page, and we encourage you to review it periodically.

Contact

If you have any questions about this Privacy Policy, please contact us at: 45516813@qq.com