隐私政策与数据说明Privacy Policy & Data Notice
最后更新：2025 年Last updated: 2025
核心原则Core Principle
本平台不出售、不共享、不用于广告的任何用户数据。收集数据的唯一目的是提供练习功能和维护平台正常运行。This platform does not sell, share, or use any user data for advertising. Data is collected solely to provide practice features and maintain normal platform operation.
1. 收集的数据1. Data Collected
注册账号时收集邮箱和密码（加密存储）。使用平台时可能记录练习进度、收藏、错题、考试回忆、单词本和管理员上传的题目内容。此外还有维持服务所需的基础系统日志（请求时间、错误信息等）。Account registration collects your email and password (stored encrypted). Platform use may record practice progress, bookmarks, mistakes, exam memories, vocabulary, and admin-uploaded question content. Basic system logs (request timestamps, error info) are retained as needed to operate the service.
2. 数据使用方式2. How Data Is Used
账号数据用于登录验证和访问控制；练习数据用于展示你的错题、收藏和进度；管理员题目数据用于题库管理；系统日志用于排查故障。不使用任何数据进行与备考无关的推送或广告。Account data is used for authentication and access control. Practice data powers your mistake review, bookmarks, and progress views. Admin question data supports the question bank. System logs are used for troubleshooting only. No data is used for unrelated push notifications or advertising.
3. 本地存储3. Local Storage
本站使用浏览器 localStorage 保存语言偏好、主题设置和登录令牌，用于改善使用体验。这些数据保存在你的设备上，清除浏览器数据即可删除。This site uses browser localStorage to store language preference, theme setting, and login tokens for a better experience. This data stays on your device and can be deleted by clearing browser storage.
4. 第三方服务4. Third-Party Services
AI 评分功能可能调用第三方大模型 API（如 OpenAI），提交的文本内容适用该服务的隐私条款。音频播放直接从 CDN 加载，不经过我们的服务器。AI scoring features may call third-party LLM APIs (e.g. OpenAI); submitted text is subject to that service's privacy policy. Audio playback is loaded directly from CDN and does not pass through our servers.
5. 数据访问与删除5. Access & Deletion
如需访问或删除你的账号数据，请通过本站联系方式提交请求，我们将在合理时间内处理。删除账号后，相关练习数据将一并删除。To access or delete your account data, submit a request via the site contact. We will process it within a reasonable timeframe. Deleting your account removes associated practice data.
6. 未成年人6. Minors
本平台面向 18 周岁及以上用户。我们不会故意收集未成年人的个人信息。如发现未成年人注册账号，请联系我们删除相关数据。This platform is intended for users 18 years of age or older. We do not knowingly collect personal information from minors. If you believe a minor has registered, please contact us to remove the data.