## 改动说明 / Description

<!-- 简要描述本次 PR 的目的和改动内容 / Briefly describe the purpose and changes -->


## 改动类型 / Type of Change

<!-- 请勾选适用的类型 / Check the type(s) that apply -->

- [ ] 🐛 Bug 修复 / Bug fix
- [ ] ✨ 新功能 / New feature
- [ ] ♻️ 代码重构 / Refactoring (no functional change)
- [ ] 📝 文档更新 / Documentation update
- [ ] 🎨 UI/样式调整 / UI / style change
- [ ] ⚡ 性能优化 / Performance improvement
- [ ] 🔧 构建/配置变更 / Build / config change

## 关联 Issue / Related Issue

<!-- 如果有关联的 Issue，请填写 / Link to related issue if applicable -->

Closes #

## 测试说明 / Testing

<!-- 描述你如何测试这些改动 / Describe how you tested these changes -->

- [ ] 本地开发模式测试通过 / Tested in dev mode
- [ ] 打包 exe 测试通过 / Tested with packaged exe
- [ ] 相关功能无明显回归 / No obvious regression

## 截图 / Screenshots

<!-- 如涉及 UI 改动，请提供前后对比截图 / If UI changes are involved, add before/after screenshots -->


## 检查清单 / Checklist

- [ ] 代码符合项目现有风格（纯 JavaScript，无 TypeScript）/ Code follows project style (vanilla JS)
- [ ] 没有引入不必要的依赖 / No unnecessary new dependencies
- [ ] 如有必要，已更新相关文档 / Documentation updated if needed