<!-- Note -->
<!-- This is a template for submitting a new feature. 
Use the bug fix template if you're submitting a bug fix pull request by adding `template=bug_fix.md` to your pull request URL. -->

# Description (需求描述)
<!-- Describe the new feature or modification to an existing feature clearly and consciously. -->

# Motivation (需求背景)
<!-- Explain the reason for adding or modifying this feature. -->

# Key changes (关键改动）
<!-- Provide a technically detailed description of the key changes made. -->
- Frontend (前端)
- Backend (后端)

# Test plan (测试计划)
## Suggestions (测试建议)
<!-- Provide any suggestions or recommendations for improvements in the testing plan. -->

## Underlying risk (潜在风险)
<!-- Identify any potential risks or issues that may arise from the new feature or modification. -->

# Showcase (结果展示）
<!-- Including any screenshots of the new feature or modification. -->