diff --git a/android/app/src/main/kotlin/com/run/sportsx/AppConstants.kt b/android/app/src/main/kotlin/com/run/sportsx/AppConstants.kt
index 385b77d..0971a45 100644
--- a/android/app/src/main/kotlin/com/run/sportsx/AppConstants.kt
+++ b/android/app/src/main/kotlin/com/run/sportsx/AppConstants.kt
@@ -1,10 +1,10 @@
 package com.run.sportsx
 
 object AppConstants {
-    const val PACKAGE_NAME = "com.run.sportsx"
-    const val PLATFORM_INFO_CHANNEL = "$PACKAGE_NAME/platform_info"
-    const val RECORDING_METHOD_CHANNEL = "$PACKAGE_NAME/recording"
-    const val RECORDING_EVENT_CHANNEL = "$PACKAGE_NAME/recording_events"
-    const val RECORDING_ACTION_START = "$PACKAGE_NAME.recording.START"
-    const val RECORDING_ACTION_STOP = "$PACKAGE_NAME.recording.STOP"
+    private const val CHANNEL_NAMESPACE = "app.record_tool"
+    const val PLATFORM_INFO_CHANNEL = "$CHANNEL_NAMESPACE/platform_info"
+    const val RECORDING_METHOD_CHANNEL = "$CHANNEL_NAMESPACE/recording"
+    const val RECORDING_EVENT_CHANNEL = "$CHANNEL_NAMESPACE/recording_events"
+    const val RECORDING_ACTION_START = "$CHANNEL_NAMESPACE.recording.START"
+    const val RECORDING_ACTION_STOP = "$CHANNEL_NAMESPACE.recording.STOP"
 }
diff --git a/ios/Runner/PlatformInfoPlugin.swift b/ios/Runner/PlatformInfoPlugin.swift
index 5de88dd..f219908 100644
--- a/ios/Runner/PlatformInfoPlugin.swift
+++ b/ios/Runner/PlatformInfoPlugin.swift
@@ -4,7 +4,7 @@ import UIKit
 final class PlatformInfoPlugin: NSObject, FlutterPlugin {
   static func register(with registrar: FlutterPluginRegistrar) {
     let channel = FlutterMethodChannel(
-      name: "com.run.sportsx/platform_info",
+      name: "app.record_tool/platform_info",
       binaryMessenger: registrar.messenger()
     )
     let plugin = PlatformInfoPlugin()
diff --git a/ios/Runner/RecordingPlugin.swift b/ios/Runner/RecordingPlugin.swift
index 0fdeb25..6b8e53b 100644
--- a/ios/Runner/RecordingPlugin.swift
+++ b/ios/Runner/RecordingPlugin.swift
@@ -633,9 +633,9 @@ private final class RecordingCameraController: NSObject, AVCaptureFileOutputReco
 }
 
 private enum RecordingChannelNames {
-  static let packageName = "com.run.sportsx"
-  static let method = "\(packageName)/recording"
-  static let events = "\(packageName)/recording_events"
+  static let namespace = "app.record_tool"
+  static let method = "\(namespace)/recording"
+  static let events = "\(namespace)/recording_events"
 }
 
 final class RecordingPlugin: NSObject, FlutterPlugin, FlutterStreamHandler {
diff --git a/lib/core/platform/app_platform_info.dart b/lib/core/platform/app_platform_info.dart
index 3c7f53d..3f70f66 100644
--- a/lib/core/platform/app_platform_info.dart
+++ b/lib/core/platform/app_platform_info.dart
@@ -60,7 +60,7 @@ class AppPlatformInfo {
   AppPlatformInfo._();
 
   static const MethodChannel _channel = MethodChannel(
-    'com.run.sportsx/platform_info',
+    'app.record_tool/platform_info',
   );
 
   static Future<AppPackageInfo> packageInfo() async {
diff --git a/lib/features/recording/platform/recording_channel_names.dart b/lib/features/recording/platform/recording_channel_names.dart
index b97f0b7..4d07f93 100644
--- a/lib/features/recording/platform/recording_channel_names.dart
+++ b/lib/features/recording/platform/recording_channel_names.dart
@@ -1,5 +1,5 @@
 abstract final class RecordingChannelNames {
-  static const packageName = 'com.run.sportsx';
-  static const method = '$packageName/recording';
-  static const events = '$packageName/recording_events';
+  static const namespace = 'app.record_tool';
+  static const method = '$namespace/recording';
+  static const events = '$namespace/recording_events';
 }
diff --git a/lib/features/recording/widgets/widget_recording_hud.dart b/lib/features/recording/widgets/widget_recording_hud.dart
index c0f52c2..ab76bc3 100644
--- a/lib/features/recording/widgets/widget_recording_hud.dart
+++ b/lib/features/recording/widgets/widget_recording_hud.dart
@@ -308,7 +308,7 @@ class _ZoomPresetButton extends StatelessWidget {
           ),
         ),
         child: Text(
-          '${_formatZoomRatio(displayRatio)}x',
+          _formatZoomRatio(displayRatio),
           style: TextStyle(
             fontSize: 13.sp,
             fontWeight: FontWeight.w700,
@@ -320,9 +320,12 @@ class _ZoomPresetButton extends StatelessWidget {
   }
 
   String _formatZoomRatio(double ratio) {
-    if (ratio == ratio.roundToDouble()) {
-      return ratio.toStringAsFixed(0);
+    if (ratio < 1.0) {
+      return '广角';
     }
-    return ratio.toStringAsFixed(1);
+    if (ratio == ratio.roundToDouble()) {
+      return '${ratio.toStringAsFixed(0)}x';
+    }
+    return '${ratio.toStringAsFixed(1)}x';
   }
 }
diff --git a/test/features/recording/recording_platform_test.dart b/test/features/recording/recording_platform_test.dart
index 54bd537..9774d92 100644
--- a/test/features/recording/recording_platform_test.dart
+++ b/test/features/recording/recording_platform_test.dart
@@ -1,7 +1,15 @@
 import 'package:flutter_test/flutter_test.dart';
+import 'package:recording_tool/features/recording/platform/recording_channel_names.dart';
 import 'package:recording_tool/features/recording/platform/recording_platform.dart';
 
 void main() {
+  group('RecordingChannelNames', () {
+    test('uses stable bridge names without package binding', () {
+      expect(RecordingChannelNames.method, 'app.record_tool/recording');
+      expect(RecordingChannelNames.events, 'app.record_tool/recording_events');
+    });
+  });
+
   group('RecordingPlatform support', () {
     test('supports Android and iOS hosts only', () {
       expect(