diff --git a/src/components/CommentSection.vue b/src/components/CommentSection.vue
index b671f57..3ad9ff1 100644
--- a/src/components/CommentSection.vue
+++ b/src/components/CommentSection.vue
@@ -209,7 +209,7 @@ onMounted(() => {
 }
 
 .comment-item:not(:last-child) .comment-card {
-  border-bottom: 1px dashed #d4c4b0;
+  border-bottom: 1px dashed var(--ac-border-strong);
   padding-bottom: 18px;
 }