文档参数有误
https://developers.weixin.qq.com/miniprogram/dev/extended/component-plus/vtabs.html
tab-line-color 应该为tab-bar-line-color
tab-active-text-color 应该为 tab-bar-active-text-color
https://developers.weixin.qq.com/miniprogram/dev/extended/component-plus/vtabs.html
tab-line-color 应该为tab-bar-line-color
tab-active-text-color 应该为 tab-bar-active-text-color