From 4ec4c76f9cf10fb37df806e72d3863c3998c1a28 Mon Sep 17 00:00:00 2001
From: Acbox <acbox0328@gmail.com>
Date: Sun, 29 Mar 2026 19:48:19 +0800
Subject: [PATCH] fix(ui): remove unwanted borders on CollapsibleContent
 children

The child-selector border styles (*:border-b *:border-x etc.) on
CollapsibleContent caused unexpected white outlines around thinking
blocks and tool-call detail panels in chat messages.
---
 packages/ui/src/components/collapsible/CollapsibleContent.vue | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/ui/src/components/collapsible/CollapsibleContent.vue b/packages/ui/src/components/collapsible/CollapsibleContent.vue
index 7761d170..6f1f945c 100644
--- a/packages/ui/src/components/collapsible/CollapsibleContent.vue
+++ b/packages/ui/src/components/collapsible/CollapsibleContent.vue
@@ -9,7 +9,7 @@ const props = defineProps<CollapsibleContentProps>()
   <CollapsibleContent
     data-slot="collapsible-content"
     v-bind="props"
-    class="*:border-b *:border-x *:first-of-type:border-t *:first-of-type:rounded-t-md *:last-of-type:rounded-b-md"
+    class=""
   >
     <slot />
   </CollapsibleContent>