fix(Tabs): setLine when popup reopened (#8642)

src/tabs/Tabs.tsx

@@ -42,6 +42,7 @@ import {
 import { route, RouteProps } from '../composables/use-route';
 import { useRefs } from '../composables/use-refs';
 import { useExpose } from '../composables/use-expose';
+import { onPopupReopen } from '../composables/on-popup-reopen';
 
 // Components
 import { Sticky } from '../sticky';
@@ -123,10 +124,8 @@ export default defineComponent({
     const state = reactive({
       inited: false,
       position: '',
+      lineStyle: {} as CSSProperties,
       currentIndex: -1,
-      lineStyle: {
-        backgroundColor: props.color,
-      } as CSSProperties,
     });
 
     // whether the nav is scrollable
@@ -443,6 +442,7 @@ export default defineComponent({
     });
 
     onActivated(setLine);
+    onPopupReopen(setLine);
     onMountedOrActivated(init);
     useEventListener('scroll', onScroll, { target: scroller.value });