diff --git a/.copilot-temp/submit-ace-smoke.html b/.copilot-temp/submit-ace-smoke.html
new file mode 100644
index 0000000..c799eb5
--- /dev/null
+++ b/.copilot-temp/submit-ace-smoke.html
@@ -0,0 +1,71 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+  <meta charset="UTF-8">
+  <title>Submit Ace Smoke</title>
+  <style>
+    body {
+      margin: 0;
+      padding: 24px;
+      background: #f4f7fb;
+      font-family: "Segoe UI", sans-serif;
+    }
+
+    #source {
+      width: 100%;
+      height: 320px;
+      border: 1px solid #d4d4d5;
+      border-radius: 6px;
+    }
+
+    #hide_source {
+      width: 100%;
+      height: 140px;
+      margin-top: 16px;
+    }
+  </style>
+</head>
+<body>
+  <pre id="source">#include &lt;bits/stdc++.h&gt;
+
+int main() {
+    return 0;
+}
+</pre>
+  <textarea id="hide_source"></textarea>
+  <script src="../web/ace/ace.js"></script>
+  <script src="../web/ace/ext-language_tools.js"></script>
+  <script>
+    ace.config.set('basePath', '../web/ace');
+    var sourceElement = document.getElementById('source');
+    var hiddenSourceElement = document.getElementById('hide_source');
+    var initialSourceCode = sourceElement ? (sourceElement.textContent || sourceElement.innerText || '') : '';
+    var editor = ace.edit('source');
+
+    editor.setTheme('ace/theme/xcode');
+    editor.setShowPrintMargin(false);
+    editor.setBehavioursEnabled(true);
+    editor.session.setUseWrapMode(true);
+    editor.session.setTabSize(4);
+    editor.session.setUseSoftTabs(true);
+    editor.setOptions({
+      enableBasicAutocompletion: true,
+      enableSnippets: true,
+      enableLiveAutocompletion: true,
+      fontSize: '18px'
+    });
+    editor.setValue(initialSourceCode, -1);
+
+    function syncEditorSource() {
+      if (hiddenSourceElement) {
+        hiddenSourceElement.value = editor.getValue();
+      }
+    }
+
+    editor.getSession().on('change', syncEditorSource);
+    syncEditorSource();
+    editor.getSession().setMode('ace/mode/c_cpp');
+    window.smokeEditor = editor;
+  </script>
+</body>
+</html>
diff --git a/web/template/syzoj/submitpage.php b/web/template/syzoj/submitpage.php
index 642a405..5f81125 100644
--- a/web/template/syzoj/submitpage.php
+++ b/web/template/syzoj/submitpage.php
@@ -15,15 +15,23 @@
     text-align: left !important;
 }
 
-.hustoj-vditor-code,
-.hustoj-vditor-code .vditor,
-.hustoj-vditor-code .vditor-content,
-.hustoj-vditor-code .vditor-reset,
-.hustoj-vditor-code textarea {
+#source.ace_editor {
     width: 100% !important;
+    border: 1px solid #d4d4d5;
+    border-radius: 6px;
+}
+
+#source.ace_editor,
+#source.ace_editor .ace_scroller,
+#source.ace_editor .ace_content,
+#source.ace_editor .ace_text-layer {
     text-align: left !important;
 }
 
+#source.ace_editor .ace_gutter {
+    border-radius: 6px 0 0 6px;
+}
+
 .ace-chrome .ace_marker-layer .ace_active-line{   /*当前行*/
    background-color: rgba(0,0,199,0.3);
 }
@@ -474,21 +482,39 @@ function loadFromBlockly(){
       }
 ?>
 <?php if($OJ_ACE_EDITOR){ ?>
-<script src="include/vditor-adapter.js"></script>
+<script src="ace/ace.js"></script>
+<script src="ace/ext-language_tools.js"></script>
 <script>
-    var editor = HustOJVditor.createDeferredCodeEditor({
-        container: "source",
-        hiddenField: "hide_source",
-        theme: "ace/theme/xcode",
-        fontSize: 18
-    });
-    switchLang(<?php echo $lastlang ?>);
+    ace.config.set("basePath", "ace");
+
+    var sourceElement = document.getElementById("source");
+    var hiddenSourceElement = document.getElementById("hide_source");
+    var initialSourceCode = sourceElement ? (sourceElement.textContent || sourceElement.innerText || "") : "";
+    var editor = ace.edit("source");
+
+    editor.setTheme("ace/theme/xcode");
+    editor.setShowPrintMargin(false);
+    editor.setBehavioursEnabled(true);
+    editor.session.setUseWrapMode(true);
+    editor.session.setTabSize(4);
+    editor.session.setUseSoftTabs(true);
     editor.setOptions({
         enableBasicAutocompletion: true,
         enableSnippets: true,
         enableLiveAutocompletion: true,
         fontSize: "18px"
     });
+    editor.setValue(initialSourceCode, -1);
+
+    function syncEditorSource(){
+        if(hiddenSourceElement){
+            hiddenSourceElement.value = editor.getValue();
+        }
+    }
+
+    editor.getSession().on("change", syncEditorSource);
+    switchLang(<?php echo $lastlang ?>);
+    syncEditorSource();
    reloadtemplate($("#language").val()); 
    function getSourceDraftKey(languageOverride){
         let language=languageOverride;
