diff --git a/packages/frontend/src/components/CodeMirrorMobileEditor.vue b/packages/frontend/src/components/CodeMirrorMobileEditor.vue
new file mode 100644
index 0000000..58c3956
--- /dev/null
+++ b/packages/frontend/src/components/CodeMirrorMobileEditor.vue
@@ -0,0 +1,124 @@
+<template>
+  <div ref="editorRef" class="codemirror-mobile-editor-container"></div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, onBeforeUnmount, watch, shallowRef } from 'vue';
+import { EditorState, Compartment } from '@codemirror/state';
+import { EditorView, keymap } from '@codemirror/view';
+import { basicSetup } from 'codemirror'; // Use basicSetup from the main 'codemirror' package
+
+const props = defineProps({
+  modelValue: {
+    type: String,
+    default: '',
+  },
+  language: {
+    type: String,
+    default: 'plaintext', // Default to plaintext if no language is specified
+  },
+});
+
+const emit = defineEmits(['update:modelValue', 'request-save']);
+
+const editorRef = ref<HTMLDivElement | null>(null);
+const view = shallowRef<EditorView | null>(null);
+const languageCompartment = new Compartment(); // For dynamic language switching
+
+const createEditorState = (doc: string, languageExtension: any) => {
+  return EditorState.create({
+    doc,
+    extensions: [
+      basicSetup, // Includes many common features like line numbers, history, default keymaps etc.
+      keymap.of([
+        { key: "Mod-s", run: () => { emit('request-save'); return true; } }
+      ]),
+      EditorView.updateListener.of((update) => {
+        if (update.docChanged) {
+          emit('update:modelValue', update.state.doc.toString());
+        }
+      }),
+      languageCompartment.of(languageExtension), // Initial language
+    ],
+  });
+};
+
+const getLanguageExtension = async (lang: string) => {
+  if (lang === 'javascript') {
+    const { javascript } = await import('@codemirror/lang-javascript');
+    return javascript();
+  }
+  if (lang === 'css') {
+    const { css } = await import('@codemirror/lang-css');
+    return css();
+  }
+  if (lang === 'html') {
+    const { html } = await import('@codemirror/lang-html');
+    return html();
+  }
+  return [];
+};
+
+
+onMounted(async () => {
+  if (editorRef.value) {
+    const langExt = await getLanguageExtension(props.language);
+    const startState = createEditorState(props.modelValue, langExt);
+    
+    view.value = new EditorView({
+      state: startState,
+      parent: editorRef.value,
+    });
+  }
+});
+
+onBeforeUnmount(() => {
+  if (view.value) {
+    view.value.destroy();
+    view.value = null;
+  }
+});
+
+watch(() => props.modelValue, (newValue) => {
+  if (view.value && newValue !== view.value.state.doc.toString()) {
+    view.value.dispatch({
+      changes: { from: 0, to: view.value.state.doc.length, insert: newValue },
+    });
+  }
+});
+
+watch(() => props.language, async (newLanguage, oldLanguage) => {
+  if (view.value && newLanguage !== oldLanguage) {
+    console.log(`Language changing from ${oldLanguage} to: ${newLanguage}.`);
+    const langExt = await getLanguageExtension(newLanguage);
+    view.value.dispatch({
+      effects: languageCompartment.reconfigure(langExt)
+    });
+  }
+});
+
+defineExpose({
+  focus: () => view.value?.focus(),
+});
+
+</script>
+
+<style scoped>
+.codemirror-mobile-editor-container {
+  width: 100%;
+  height: 100%;
+  min-height: 200px; /* Adjust as needed for mobile */
+  text-align: left;
+  overflow: auto; /* Enable both horizontal and vertical scrolling */
+}
+
+.codemirror-mobile-editor-container :deep(.cm-gutters) {
+  background-color: #1E1E1E !important; /* Match typical dark editor background */
+  color: #858585 !important; /* Ensure line numbers are visible */
+  border-right: 1px solid var(--border-color, #cccccc) !important; /* Use theme border color */
+}
+
+.codemirror-mobile-editor-container :deep(.cm-selectionBackground) {
+  background-color: #5264ac !important;
+}
+</style>
diff --git a/packages/frontend/src/components/FileEditorOverlay.vue b/packages/frontend/src/components/FileEditorOverlay.vue
index 78665c5..ebaf360 100644
--- a/packages/frontend/src/components/FileEditorOverlay.vue
+++ b/packages/frontend/src/components/FileEditorOverlay.vue
@@ -3,6 +3,7 @@ import { computed, ref, onMounted, onBeforeUnmount, watch, nextTick } from 'vue'
 import { useI18n } from 'vue-i18n';
 import { storeToRefs } from 'pinia';
 import MonacoEditor from './MonacoEditor.vue';
+import CodeMirrorMobileEditor from './CodeMirrorMobileEditor.vue'; // +++ Import new mobile editor
 import FileEditorTabs from './FileEditorTabs.vue';
 import { useFileEditorStore, type FileTab } from '../stores/fileEditor.store';
 import { useSettingsStore } from '../stores/settings.store';
@@ -575,9 +576,11 @@ onBeforeUnmount(() => {
       <div class="editor-content-area">
         <div v-if="currentTabIsLoading" class="editor-loading">{{ t('fileManager.loadingFile') }}</div>
         <div v-else-if="currentTabLoadingError" class="editor-error">{{ currentTabLoadingError }}</div>
+        
+        <!-- Desktop Editor -->
         <MonacoEditor
-          v-else-if="activeTab"
-          :key="activeTab.id"
+          v-else-if="activeTab && !props.isMobile"
+          :key="`monaco-${activeTab.id}`"
           v-model="activeEditorContent"
           :language="currentTabLanguage"
           :font-family="currentEditorFontFamily"
@@ -586,9 +589,18 @@ onBeforeUnmount(() => {
           :font-size="currentEditorFontSize"
           @request-save="handleSaveRequest"
           @update:fontSize="handleEditorFontSizeUpdate"
-         :initialScrollTop="activeTab?.scrollTop ?? 0"
-         :initialScrollLeft="activeTab?.scrollLeft ?? 0"
-         @update:scrollPosition="handleEditorScroll"
+          :initialScrollTop="activeTab?.scrollTop ?? 0"
+          :initialScrollLeft="activeTab?.scrollLeft ?? 0"
+          @update:scrollPosition="handleEditorScroll"
+        />
+        <!-- Mobile Editor -->
+        <CodeMirrorMobileEditor
+          v-else-if="activeTab && props.isMobile"
+          :key="`cm-${activeTab.id}`"
+          v-model="activeEditorContent"
+          :language="currentTabLanguage"
+          class="editor-instance"
+          @request-save="handleSaveRequest"
         />
          <!-- 如果容器可见但没有活动标签页 -->
         <div v-else class="editor-placeholder">{{ t('fileManager.selectFileToEdit') }}</div>