diff --git a/templates/assets/libs/prism/code.css b/templates/assets/libs/prism/code.css
index 19211870..3aeff948 100644
--- a/templates/assets/libs/prism/code.css
+++ b/templates/assets/libs/prism/code.css
@@ -207,7 +207,7 @@
 
 #article-container .code-expand-btn i ,
 #post-comment .code-expand-btn i{
-    color: var(--hlnumber-color);
+    color: var(--heo-main);
     font-size: 14px;
     line-height: 1;
 }
@@ -327,4 +327,4 @@
     }
 }
 
-/*代码块*/
\ No newline at end of file
+/*代码块*/