Technical Support — 了白文化 / Leobright
适用于我们的全部产品与服务 / For all of our products and services
感谢使用我们的产品！如果您在使用任何一款产品时遇到问题，或有功能建议，欢迎通过邮箱联系我们：
Thank you for using our products! For issues or suggestions on any of them, reach us by email:
反馈时建议附上：产品名称、使用平台（iOS / 网页 / 小程序）、版本号、设备或浏览器型号、操作步骤与截图，便于我们快速定位问题。
When writing to us, please include the product name, platform (iOS / web / mini-program), version, device or browser model, steps to reproduce, and screenshots if possible.
How do I recover or change my account password?
使用统一账号登录的产品遇到账号问题（登录异常、换绑、注销等），请通过上述邮箱联系我们处理，请注明注册用的手机号或邮箱。
For account issues on products using a unified account (sign-in problems, rebinding, deletion), contact us by email with the phone number or email you registered with.
How do I restore purchases on a new device?
通过 Apple App Store 购买的项目，可在应用的会员或购买页面点击「恢复购买」（需使用购买时的同一 Apple ID）；通过其他渠道购买的项目，请联系我们找回。
For Apple App Store purchases, tap "Restore Purchases" on the membership or purchase page (using the same Apple ID). For purchases via other channels, contact us.
How do I cancel an auto-renewing subscription?
Apple 订阅：打开 iPhone「设置」→ 点按最上方的您的姓名 →「订阅」，选择对应项目关闭自动续期。微信支付等其他渠道的续费，请联系我们取消。取消后当前已付费周期仍然有效。
For Apple subscriptions: iPhone Settings → your name → Subscriptions, then turn off auto-renewal for the item. For other channels, contact us. The current paid period remains active until it ends.
Is my data safe? Will it sync?
我们重视数据安全：在线产品仅收集提供服务所必需的信息并加密存储，不用于广告、不向第三方出售；纯离线产品的数据仅保存在您的设备本机，不上传、不跨设备同步，卸载应用即清除。详见 《隐私政策》。
We take data security seriously: online products collect only what is needed and store it with encryption — never for ads, never sold. Offline-only products keep data on your device only; uninstalling deletes it. See our Privacy Policy.
What if an app won't start or work properly?
请尝试重启应用、更新到最新版本，或检查网络连接。网页产品可尝试清除浏览器缓存后刷新。如问题持续，请按上述方式联系我们。
Try restarting the app, updating to the latest version, or checking your connection. For web products, clearing the browser cache and refreshing may help. If the issue persists, contact us.