diff --git a/application/common/HelperFunction.php b/application/common/HelperFunction.php
index 24910c1..36b71e5 100644
--- a/application/common/HelperFunction.php
+++ b/application/common/HelperFunction.php
@@ -332,7 +332,7 @@ class HelperFunction
 
     //     return $chunks;
     // }
-    public function splitContent($content,$maxChunkTokens = 12000,$charPerToken = 3,$overlap = 100){
+    public function splitContent($content,$maxChunkTokens = 12000,$charPerToken = 4,$overlap = 100){
         // 1. 前置参数校验（极简逻辑，减少分支损耗）
         $contentLength = strlen($content);
         if ($contentLength === 0) {