diff --git a/jumpserver/luna.user.js b/jumpserver/luna.user.js
new file mode 100644
index 0000000..2fc3267
--- /dev/null
+++ b/jumpserver/luna.user.js
@@ -0,0 +1,21 @@
+// ==UserScript==
+// @name         LUNA辅助扩展
+// @namespace    https://miaowoo.cc/
+// @version      0.1
+// @description  Jumpserver Web终端 扩展
+// @author       MiaoWoo
+// @match        https://jump.miaowoo.cc/luna/*
+// @grant        none
+// ==/UserScript==
+
+(function() {
+    'use strict';
+    document.querySelector('.left-side').style.maxWidth = '10.5%'
+    document.querySelector('.content').style.maxWidth = '89.5%'
+    setTimeout(function(){
+        document.querySelector('#assetsTree_4_switch').click()
+        setTimeout(function(){
+            document.querySelector('#assetsTree_6_switch').click()
+        }, 500)
+    }, 500)
+})();
\ No newline at end of file