diff --git a/web/src/components/file-editor/EditorPane.vue b/web/src/components/file-editor/EditorPane.vue
index 8ab86e3b..99d234a1 100644
--- a/web/src/components/file-editor/EditorPane.vue
+++ b/web/src/components/file-editor/EditorPane.vue
@@ -51,7 +51,7 @@ async function initEditor() {
     // Display settings
     lineNumbers: settings.lineNumbers,
     renderWhitespace: settings.renderWhitespace,
-    'bracketPairColorization.enabled': settings.bracketPairColorization,
+    bracketPairColorization: { enabled: settings.bracketPairColorization },
     guides: {
       indentation: settings.guides,
       bracketPairs: settings.guides
@@ -308,7 +308,7 @@ watch(
       // Display settings
       lineNumbers: settings.lineNumbers,
       renderWhitespace: settings.renderWhitespace,
-      'bracketPairColorization.enabled': settings.bracketPairColorization,
+      bracketPairColorization: { enabled: settings.bracketPairColorization },
       guides: {
         indentation: settings.guides,
         bracketPairs: settings.guides
diff --git a/web/src/components/file-editor/EditorStatusBar.vue b/web/src/components/file-editor/EditorStatusBar.vue
index a8bad625..79d78e50 100644
--- a/web/src/components/file-editor/EditorStatusBar.vue
+++ b/web/src/components/file-editor/EditorStatusBar.vue
@@ -40,10 +40,10 @@ const encodings = ['utf-8', 'gbk', 'gb2312', 'iso-8859-1', 'utf-16', 'utf-16le',
 
 // 缩进选项
 const indentOptions = computed(() => [
-  { label: `${$gettext('Spaces')}: 2`, value: { tabSize: 2, insertSpaces: true } },
-  { label: `${$gettext('Spaces')}: 4`, value: { tabSize: 4, insertSpaces: true } },
-  { label: `${$gettext('Tabs')}: 2`, value: { tabSize: 2, insertSpaces: false } },
-  { label: `${$gettext('Tabs')}: 4`, value: { tabSize: 4, insertSpaces: false } }
+  { label: `${$gettext('Spaces')}: 2`, value: '2-spaces' },
+  { label: `${$gettext('Spaces')}: 4`, value: '4-spaces' },
+  { label: `${$gettext('Tabs')}: 2`, value: '2-tabs' },
+  { label: `${$gettext('Tabs')}: 4`, value: '4-tabs' }
 ])
 
 // 当前缩进显示
@@ -74,8 +74,12 @@ function handleLanguageChange(value: string) {
 }
 
 // 更新缩进
-function handleIndentChange(value: { tabSize: number; insertSpaces: boolean }) {
-  editorStore.updateSettings(value)
+function handleIndentChange(value: string) {
+  const [size, type] = value.split('-')
+  editorStore.updateSettings({
+    tabSize: parseInt(size),
+    insertSpaces: type === 'spaces'
+  })
 }
 </script>
 
diff --git a/web/src/components/file-editor/EditorToolbar.vue b/web/src/components/file-editor/EditorToolbar.vue
index f8e2f5fd..ef197aa3 100644
--- a/web/src/components/file-editor/EditorToolbar.vue
+++ b/web/src/components/file-editor/EditorToolbar.vue
@@ -142,9 +142,10 @@ function handleSettings() {
 }
 
 // 字体大小调整
-function handleFontSizeChange(delta: number) {
-  const newSize = Math.max(10, Math.min(24, editorStore.settings.fontSize + delta))
-  editorStore.updateSettings({ fontSize: newSize })
+function handleFontSizeChange(value: number | null) {
+  if (value !== null) {
+    editorStore.updateSettings({ fontSize: value })
+  }
 }
 
 // 切换小地图
@@ -244,21 +245,16 @@ defineExpose({
       <n-divider vertical />
 
       <!-- 视图操作 -->
-      <n-button-group size="small">
-        <n-button @click="handleFontSizeChange(-1)" :title="$gettext('Decrease Font Size')">
-          <template #icon>
-            <i-mdi-format-font-size-decrease />
-          </template>
-        </n-button>
-        <n-button class="font-size-display">
-          {{ editorStore.settings.fontSize }}
-        </n-button>
-        <n-button @click="handleFontSizeChange(1)" :title="$gettext('Increase Font Size')">
-          <template #icon>
-            <i-mdi-format-font-size-increase />
-          </template>
-        </n-button>
-      </n-button-group>
+      <n-input-number
+        :value="editorStore.settings.fontSize"
+        @update:value="handleFontSizeChange"
+        size="small"
+        button-placement="both"
+        :min="10"
+        :max="24"
+        :show-button="true"
+        class="w-80"
+      />
 
       <n-button
         size="small"
@@ -305,10 +301,4 @@ defineExpose({
 .spacer {
   flex: 1;
 }
-
-.font-size-display {
-  min-width: 40px;
-  cursor: default;
-  pointer-events: none;
-}
 </style>
diff --git a/web/src/components/file-editor/FileEditorView.vue b/web/src/components/file-editor/FileEditorView.vue
index e1fbb8fc..5fd50d1e 100644
--- a/web/src/components/file-editor/FileEditorView.vue
+++ b/web/src/components/file-editor/FileEditorView.vue
@@ -64,7 +64,7 @@ watch(rootPath, (newPath) => {
 
 // 键盘快捷键
 function handleKeydown(e: KeyboardEvent) {
-  const isMac = navigator.platform.toUpperCase().indexOf('MAC') >= 0
+  const isMac = /Mac|iPod|iPhone|iPad/.test(navigator.userAgent)
   const modKey = isMac ? e.metaKey : e.ctrlKey
 
   // Ctrl/Cmd+S 保存
diff --git a/web/src/components/file-editor/FileTree.vue b/web/src/components/file-editor/FileTree.vue
index e9f5cfa4..fb0e3edd 100644
--- a/web/src/components/file-editor/FileTree.vue
+++ b/web/src/components/file-editor/FileTree.vue
@@ -117,11 +117,13 @@ function handleExpandedKeysUpdate(keys: string[]) {
 }
 
 // 选择节点（打开文件）
-async function handleSelect(keys: string[], option: TreeOption[]) {
+function handleSelect(keys: string[], option: (TreeOption | null)[]) {
   if (keys.length === 0) return
   selectedKeys.value = keys
 
   const node = option[0]
+  if (!node) return
+
   const isDir = (node as any)?.isDir
 
   // 搜索模式下点击文件夹，跳转到该目录
@@ -784,7 +786,7 @@ defineExpose({
           @update:selected-keys="handleSelect"
           selectable
           expand-on-click
-          virtual-scroll
+          virtual-scrollå
           class="file-tree-content"
           style="height: 100%"
         />