diff --git a/FileMerger.cs b/FileMerger.cs
index 25a2365..cde65c3 100644
--- a/FileMerger.cs
+++ b/FileMerger.cs
@@ -155,15 +155,15 @@ namespace SlideCombine
             try
             {
                 string[] lines;
-                // 先尝试UTF-8，支持特殊字符如Ü、ü等
+                // 在Windows上使用GB2312编码读取，正确处理中文字符
                 try
                 {
-                    lines = File.ReadAllLines(txtFile, Encoding.UTF8);
+                    lines = File.ReadAllLines(txtFile, Encoding.GetEncoding("GB2312"));
                 }
                 catch
                 {
-                    // 如果UTF-8失败，尝试GBK
-                    lines = File.ReadAllLines(txtFile, Encoding.GetEncoding("GBK"));
+                    // 如果GB2312不可用，使用系统默认编码
+                    lines = File.ReadAllLines(txtFile, Encoding.Default);
                 }
 
                 foreach (var line in lines)