CenterPopup 组件中使用 Steps，弹窗打开瞬间进度条会发生位移抖动

描述

贡献者指南

技术栈

typescriptreactcss

领域

frontend

议题类型

bug

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

3

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

1-3 hours

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

stale

清晰度议题是否清楚说明期望改动、验收标准和下一步。

mostly clear

前置要求

React basicsCSS animations knowledge

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

60

研究方向

Investigate the CenterPopup and Steps component CSS to identify the cause of the dot jump during the popup open animation. Check the transition effects affecting the Steps component. The reproduction code is in the linked CodeSandbox. Look for any CSS properties like transform or opacity that might affect layout. Compare the animation of the popup with the Steps' internal positioning. Potential fix could involve using will change or adjusting animation timing. See discussion at https://github.com/ant design/ant design mobile/discussions/5624 for more context.