diff --git a/lib/browser/utils.js b/lib/browser/utils.js
index aa7e9f6..3734796 100644
--- a/lib/browser/utils.js
+++ b/lib/browser/utils.js
@@ -242,10 +242,11 @@ export async function humanType(page, target, text) {
         // 2. 停顿思考
         await sleep(500, 1000);
 
-        // 3. 全选删除
-        await page.keyboard.down('Control');
+        // 3. 全选删除 (macOS 使用 Meta/Command, Windows/Linux 使用 Control)
+        const modifierKey = process.platform === 'darwin' ? 'Meta' : 'Control';
+        await page.keyboard.down(modifierKey);
         await page.keyboard.press('A');
-        await page.keyboard.up('Control');
+        await page.keyboard.up(modifierKey);
         await sleep(100, 300);
         await page.keyboard.press('Backspace');
         await sleep(100, 300);