update
diff --git a/.htaccess b/.htaccess
index ae4a886..a95afca 100644
--- a/.htaccess
+++ b/.htaccess
@@ -23,8 +23,8 @@
 RewriteEngine On
 
 RewriteCond "%{HTTP:Accept-Language}" ^zh [NC]
-RewriteRule ^/(index.html)?$ "/zh/index.html" [L,R=301]
+RewriteRule ^/?(index[.]html)?$ "/zh/index.html" [L,R=301]
 
 RewriteCond "%{HTTP:Accept-Language}" ^en [NC]
-RewriteRule ^/(index.html)?$ "/en/index.html" [L,R=301]
+RewriteRule ^/?(index[.]html)?$ "/en/index.html" [L,R=301]