diff --git a/Assets/Scripts/UI/Pages/ConnectDevice/ScanQRcode.cs b/Assets/Scripts/UI/Pages/ConnectDevice/ScanQRcode.cs
index 0416880..1979264 100644
--- a/Assets/Scripts/UI/Pages/ConnectDevice/ScanQRcode.cs
+++ b/Assets/Scripts/UI/Pages/ConnectDevice/ScanQRcode.cs
@@ -205,11 +205,14 @@ namespace Kill.UI.Pages
             }
             Debug.Log($"[ScanQRcode] 选中摄像头: {deviceName}");
 
-            webCamTexture = new WebCamTexture(deviceName, 2160, 30);
+            // 使用 1080p 原生分辨率，iOS 会触发系统连续自动对焦
+            webCamTexture = new WebCamTexture(deviceName, 1920, 1080, 30);
             webCamTexture.Play();
 
             yield return new WaitUntil(() => webCamTexture.width > 100);
 
+            Debug.Log($"[ScanQRcode] 实际摄像头分辨率: {webCamTexture.width}x{webCamTexture.height} FPS:{webCamTexture.requestedFPS}");
+
             AdjustPreviewAspect();
 
             isScanning = true;
@@ -218,7 +221,11 @@ namespace Kill.UI.Pages
 
             if (enableAutoFocus)
             {
+#if UNITY_IOS && !UNITY_EDITOR
+                // iOS 通过高分辨率触发系统连续自动对焦，无需额外操作
+#else
                 StartCoroutine(AutoFocusCoroutine());
+#endif
             }
         }