diff --git a/lib/config/storage_keys.dart b/lib/config/storage_keys.dart
index e37881c..f0f79ac 100644
--- a/lib/config/storage_keys.dart
+++ b/lib/config/storage_keys.dart
@@ -29,7 +29,7 @@ class StorageKeys {
   static const String themeMode = 'theme_mode'; // 主题模式：light, dark, system
 
   // 默认值
-  static const String defaultTimerMode = 'random_break';
+  static const String defaultTimerMode = 'pomodoro';
   static const int defaultFocusTimeMinutes = 90;
   static const int defaultBigBreakTimeMinutes = 20;
   static const bool defaultMicroBreakEnabled = true; // 默认启用微休息
diff --git a/lib/page/home/view.dart b/lib/page/home/view.dart
index 409189a..0878b0c 100644
--- a/lib/page/home/view.dart
+++ b/lib/page/home/view.dart
@@ -111,17 +111,17 @@ class HomePage extends StatelessWidget {
           children: [
             _buildModeChip(
               context: context,
-              label: '随机提示音',
-              isSelected: !isPomodoro,
+              label: '番茄时钟',
+              isSelected: isPomodoro,
               enabled: isStopped,
-              onTap: () => controller.switchTimerMode('random_break'),
+              onTap: () => controller.switchTimerMode('pomodoro'),
             ),
             _buildModeChip(
               context: context,
-              label: '番茄时钟',
-              isSelected: isPomodoro,
+              label: '随机提示音',
+              isSelected: !isPomodoro,
               enabled: isStopped,
-              onTap: () => controller.switchTimerMode('pomodoro'),
+              onTap: () => controller.switchTimerMode('random_break'),
             ),
           ],
         ),
diff --git a/lib/page/main/controller.dart b/lib/page/main/controller.dart
index acb2d1b..1e8a0df 100644
--- a/lib/page/main/controller.dart
+++ b/lib/page/main/controller.dart
@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_background_service/flutter_background_service.dart';
 import 'package:get/get.dart';
 import 'package:time_machine/page/main/state.dart';
+import 'package:time_machine/utils/toast_util.dart';
 
 class MainController extends GetxController {
   final MainState state = MainState();
@@ -44,14 +45,7 @@ class MainController extends GetxController {
       state.lastBackPressTime = now;
 
       // 显示Toast提示
-      Get.snackbar(
-        '提示',
-        '再按一次返回键退出应用',
-        snackPosition: SnackPosition.TOP,
-        duration: const Duration(seconds: 2),
-        margin: const EdgeInsets.all(16),
-        barBlur: 100,
-      );
+      ToastUtil.show('提示', '再按一次返回键退出应用');
 
       return false; // 不退出应用
     } else {
diff --git a/lib/page/setting/controller.dart b/lib/page/setting/controller.dart
index ae781f3..38016ae 100644
--- a/lib/page/setting/controller.dart
+++ b/lib/page/setting/controller.dart
@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:mmkv/mmkv.dart';
 import 'package:time_machine/route/route_name.dart';
+import 'package:time_machine/utils/toast_util.dart';
 
 import '../../service/app_storage_service.dart';
 import '../../service/permission_service.dart';
@@ -107,13 +108,7 @@ class SettingController extends GetxController {
   /// 保存设置到存储
   void saveSettings() {
     if (!state.validateAll()) {
-      Get.snackbar(
-        '验证失败',
-        '请检查输入的设置值',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: Duration(seconds: 2)
-      );
+      ToastUtil.show('验证失败', '请检查输入的设置值');
       return;
     }
 
@@ -131,13 +126,7 @@ class SettingController extends GetxController {
     _storage.encodeInt(StorageKeys.pomodoroLongBreakMinutes, state.pomodoroLongBreakMinutes.value);
     _storage.encodeInt(StorageKeys.pomodoroLongBreakInterval, state.pomodoroLongBreakInterval.value);
 
-    Get.snackbar(
-      '设置已保存',
-      '所有设置已成功保存',
-      snackPosition: SnackPosition.TOP,
-      barBlur: 100.0,
-      duration: Duration(seconds: 1),
-    );
+    ToastUtil.show('设置已保存', '所有设置已成功保存');
 
     // 通知 HomeController 重新加载设置
     try {
@@ -167,13 +156,7 @@ class SettingController extends GetxController {
     state.updateControllers();
     state.clearErrors();
 
-    Get.snackbar(
-      '已重置',
-      '所有设置已重置为默认值',
-      snackPosition: SnackPosition.TOP,
-      barBlur: 100.0,
-      duration: Duration(seconds: 1),
-    );
+    ToastUtil.show('已重置', '所有设置已重置为默认值');
   }
 
   /// 更新专注时间
@@ -268,12 +251,10 @@ class SettingController extends GetxController {
     // 申请存储权限
     final perm = Get.find<PermissionService>();
     if (!await perm.requestStorage()) {
-      Get.snackbar(
+      ToastUtil.show(
         '权限不足',
         '备份需要存储权限, 请在「权限管理→存储权限」中授予后再试',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: const Duration(seconds: 3),
+        toastLength: Toast.LENGTH_LONG,
       );
       return;
     }
@@ -288,30 +269,26 @@ class SettingController extends GetxController {
       final backupPath = await backupRestoreDBService.backupData();
 
       if (backupPath != null) {
-        Get.snackbar(
+        // 原生 Toast 对超长无空格路径会截断,只展示外部存储根(/0/)之后的关键路径
+        final shownPath = backupPath.split('/0/').last;
+        ToastUtil.show(
           '备份成功',
-          '数据已备份到: $backupPath',
-          snackPosition: SnackPosition.TOP,
-          barBlur: 100.0,
-          duration: const Duration(seconds: 3),
+          '数据已备份到: $shownPath',
+          toastLength: Toast.LENGTH_LONG,
         );
       } else {
-        Get.snackbar(
+        ToastUtil.show(
           '备份失败',
           '无法创建备份文件, 请检查存储权限',
-          snackPosition: SnackPosition.TOP,
-          barBlur: 100.0,
-          duration: const Duration(seconds: 3),
+          toastLength: Toast.LENGTH_LONG,
         );
       }
     } catch (e) {
       Get.log('备份过程中发生错误: $e');
-      Get.snackbar(
+      ToastUtil.show(
         '备份失败',
         '备份过程中发生错误: ${e.toString()}',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100.0,
-        duration: const Duration(seconds: 3),
+        toastLength: Toast.LENGTH_LONG,
       );
     } finally {
       state.isBackupInProgress.value = false;
@@ -325,12 +302,10 @@ class SettingController extends GetxController {
     // 申请存储权限
     final perm = Get.find<PermissionService>();
     if (!await perm.requestStorage()) {
-      Get.snackbar(
+      ToastUtil.show(
         '权限不足',
         '恢复需要存储权限, 请在「权限管理→存储权限」中授予后再试',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: const Duration(seconds: 3),
+        toastLength: Toast.LENGTH_LONG,
       );
       return;
     }
@@ -364,12 +339,10 @@ class SettingController extends GetxController {
       final success = await backupRestoreDBService.restoreData();
 
       if (success) {
-        Get.snackbar(
+        ToastUtil.show(
           '恢复成功',
           '数据已成功恢复, 请重启应用以生效',
-          snackPosition: SnackPosition.TOP,
-          barBlur: 100.0,
-          duration: const Duration(seconds: 3),
+          toastLength: Toast.LENGTH_LONG,
         );
 
         // 重新加载设置
@@ -383,22 +356,18 @@ class SettingController extends GetxController {
           // HomeController 可能还没有初始化, 忽略错误
         }
       } else {
-        Get.snackbar(
+        ToastUtil.show(
           '恢复失败',
           '无法恢复数据, 请检查备份文件是否有效',
-          snackPosition: SnackPosition.TOP,
-          barBlur: 100.0,
-          duration: const Duration(seconds: 3),
+          toastLength: Toast.LENGTH_LONG,
         );
       }
     } catch (e) {
       Get.log('恢复过程中发生错误: $e');
-      Get.snackbar(
+      ToastUtil.show(
         '恢复失败',
         '恢复过程中发生错误: ${e.toString()}',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100.0,
-        duration: const Duration(seconds: 3),
+        toastLength: Toast.LENGTH_LONG,
       );
     } finally {
       state.isRestoreInProgress.value = false;
diff --git a/lib/page/setting/state.dart b/lib/page/setting/state.dart
index c72ba1e..50cf9f9 100644
--- a/lib/page/setting/state.dart
+++ b/lib/page/setting/state.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:time_machine/utils/toast_util.dart';
 import '../../config/storage_keys.dart';
 
 class SettingState {
@@ -137,13 +138,7 @@ class SettingState {
       if (microBreakIntervalMinMinutes.value > microBreakIntervalMaxMinutes.value) {
         microBreakIntervalMinMinutes.value = microBreakIntervalMaxMinutes.value;
         microBreakIntervalMinController.text = microBreakIntervalMinMinutes.value.toString();
-        Get.snackbar(
-          '设置已调整',
-          '最小间隔不能大于最大间隔,已调整为相同值',
-          snackPosition: SnackPosition.TOP,
-          barBlur: 100,
-          duration: Duration(seconds: 2),
-        );
+        ToastUtil.show('设置已调整', '最小间隔不能大于最大间隔,已调整为相同值');
       }
     }
 
diff --git a/lib/page/setting/view.dart b/lib/page/setting/view.dart
index 381e57b..447b00c 100644
--- a/lib/page/setting/view.dart
+++ b/lib/page/setting/view.dart
@@ -89,9 +89,19 @@ class SettingPage extends StatelessWidget {
           child: ListView(
             padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 16.0),
             children: [
-              // 专注设置组
+              // 番茄时钟设置组（始终显示，供用户预先配置）
               SettingSection(
-                title: '专注设置',
+                title: '番茄时钟设置',
+                children: [
+                  PomodoroSettings(controller: controller),
+                ],
+              ),
+
+              const SizedBox(height: 24),
+
+              // 随机提示音设置组
+              SettingSection(
+                title: '随机提示音设置',
                 children: [
                   SettingTile(
                     title: '专注时间',
@@ -125,34 +135,7 @@ class SettingPage extends StatelessWidget {
                     ),
                   ),
                   const SettingDivider(),
-                  SettingTile(
-                    title: '自动开始下一个',
-                    subtitle: '休息结束后自动开始下一个专注',
-                    trailing: Obx(() => SettingSwitch(
-                      value: state.autoStartNextFocus.value,
-                      onChanged: controller.toggleAutoStartNextFocus,
-                    )),
-                  ),
-                ],
-              ),
-
-              const SizedBox(height: 24),
-
-              // 微休息设置组
-              SettingSection(
-                title: '微休息设置',
-                children: [
-                  MicroBreakSettings(controller: controller),
-                ],
-              ),
-
-              const SizedBox(height: 24),
-
-              // 番茄时钟设置组（始终显示，供用户预先配置）
-              SettingSection(
-                title: '番茄时钟设置',
-                children: [
-                  PomodoroSettings(controller: controller),
+                  MicroBreakSettings(controller: controller)
                 ],
               ),
 
@@ -175,12 +158,15 @@ class SettingPage extends StatelessWidget {
 
               // 显示设置组
               SettingSection(
-                title: '显示设置',
+                title: '显示与行为',
                 children: [
                   SettingTile(
-                    title: '主题模式',
-                    subtitle: '选择应用的外观主题',
-                    trailing: const ThemeSelector(),
+                    title: '自动开始下一个',
+                    subtitle: '休息结束后自动开始下一个专注',
+                    trailing: Obx(() => SettingSwitch(
+                      value: state.autoStartNextFocus.value,
+                      onChanged: controller.toggleAutoStartNextFocus,
+                    )),
                   ),
                   const SettingDivider(),
                   SettingTile(
@@ -200,6 +186,12 @@ class SettingPage extends StatelessWidget {
                       onChanged: controller.toggleProgressDirection,
                     )),
                   ),
+                  const SettingDivider(),
+                  SettingTile(
+                    title: '主题模式',
+                    subtitle: '选择应用的外观主题',
+                    trailing: const ThemeSelector(),
+                  ),
                 ],
               ),
 
diff --git a/lib/page/setting/widgets/data_settings.dart b/lib/page/setting/widgets/data_settings.dart
index 6eaa274..58eccc1 100644
--- a/lib/page/setting/widgets/data_settings.dart
+++ b/lib/page/setting/widgets/data_settings.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:time_machine/utils/toast_util.dart';
 
 import '../../../service/database_service.dart';
 import '../controller.dart';
@@ -102,10 +103,7 @@ class DataSettings extends StatelessWidget {
               if (confirmed == true) {
                 final databaseService = Get.find<DatabaseService>();
                 await databaseService.resetDatabase();
-                Get.snackbar('成功', '数据库已重置', 
-                duration: Duration(seconds: 1),
-                barBlur: 100,
-                );
+                ToastUtil.show('成功', '数据库已重置');
               }
             },
             child: const Text('重置'),
diff --git a/lib/page/setting/widgets/developer_settings.dart b/lib/page/setting/widgets/developer_settings.dart
index 1670104..86f2d38 100644
--- a/lib/page/setting/widgets/developer_settings.dart
+++ b/lib/page/setting/widgets/developer_settings.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
+import 'package:time_machine/utils/toast_util.dart';
 import 'package:time_machine/page/setting/widgets/setting_divider.dart';
 import 'package:time_machine/page/setting/widgets/setting_section.dart';
 import 'package:time_machine/page/setting/widgets/setting_tile.dart';
@@ -24,7 +25,7 @@ class DeveloperSettings extends StatelessWidget {
             onPressed: () async {
               final testDataController = Get.put(TestDataController());
               await testDataController.generateTestData();
-              Get.snackbar('成功', '测试数据已生成', duration: Duration(seconds: 1));
+              ToastUtil.show('成功', '测试数据已生成');
             },
             child: const Text('生成'),
           ),
diff --git a/lib/page/setting/widgets/permission_settings.dart b/lib/page/setting/widgets/permission_settings.dart
index a48f06d..71f86d3 100644
--- a/lib/page/setting/widgets/permission_settings.dart
+++ b/lib/page/setting/widgets/permission_settings.dart
@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:permission_handler/permission_handler.dart';
+import 'package:time_machine/utils/toast_util.dart';
 
 import '../../../service/permission_service.dart';
 import 'setting_tile.dart';
@@ -75,13 +76,7 @@ class PermissionSettings extends StatelessWidget {
   }
 
   void _showOpenSettingsHint() {
-    Get.snackbar(
-      '需要在系统设置中手动开启',
-      '权限已被永久拒绝, 即将跳转到应用设置',
-      snackPosition: SnackPosition.TOP,
-      barBlur: 100,
-      duration: const Duration(seconds: 2),
-    );
+    ToastUtil.show('需要在系统设置中手动开启', '权限已被永久拒绝, 即将跳转到应用设置');
   }
 }
 
diff --git a/lib/page/sound_settings/controller.dart b/lib/page/sound_settings/controller.dart
index c51c59a..a1857e2 100644
--- a/lib/page/sound_settings/controller.dart
+++ b/lib/page/sound_settings/controller.dart
@@ -6,6 +6,7 @@ import 'package:file_picker/file_picker.dart';
 import 'package:get/get.dart';
 import 'package:mmkv/mmkv.dart';
 import 'package:path/path.dart' as p;
+import 'package:time_machine/utils/toast_util.dart';
 
 import '../../config/storage_keys.dart';
 import '../../service/app_storage_service.dart';
@@ -130,13 +131,7 @@ class SoundSettingsController extends GetxController {
     // Android 13+ 需要 READ_MEDIA_AUDIO
     final granted = await _permissionService.requestAudioRead();
     if (!granted) {
-      Get.snackbar(
-        '权限不足',
-        '请授予音频读取权限后重试',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: const Duration(seconds: 2),
-      );
+      ToastUtil.show('权限不足', '请授予音频读取权限后重试');
       return;
     }
 
@@ -152,13 +147,7 @@ class SoundSettingsController extends GetxController {
 
     final dest = await _customSoundStorage.importCustomSound(eventId, src);
     if (dest == null) {
-      Get.snackbar(
-        '导入失败',
-        '无法保存自定义音效',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: const Duration(seconds: 2),
-      );
+      ToastUtil.show('导入失败', '无法保存自定义音效');
       return;
     }
 
@@ -217,13 +206,7 @@ class SoundSettingsController extends GetxController {
     }
     await stopAllPreview();
     if (!await File(filePath).exists()) {
-      Get.snackbar(
-        '试听失败',
-        '文件不存在',
-        snackPosition: SnackPosition.TOP,
-        barBlur: 100,
-        duration: const Duration(seconds: 2),
-      );
+      ToastUtil.show('试听失败', '文件不存在');
       return;
     }
     state.previewingTag.value = tag;
diff --git a/lib/utils/toast_util.dart b/lib/utils/toast_util.dart
new file mode 100644
index 0000000..6cb46c1
--- /dev/null
+++ b/lib/utils/toast_util.dart
@@ -0,0 +1,25 @@
+import 'package:fluttertoast/fluttertoast.dart';
+
+// 重新导出 Toast,使调用方仅 import 本文件即可使用 Toast.LENGTH_SHORT/LONG。
+export 'package:fluttertoast/fluttertoast.dart' show Toast;
+
+/// 统一 Toast 封装,替代原 Get.snackbar。
+///
+/// 使用原生 fluttertoast:标题与正文以两行展示。
+/// 时长仅 SHORT/LONG 两档,通过 [toastLength] 指定,默认 [Toast.LENGTH_SHORT]。
+/// 注意:Android 11+ 系统会忽略原生 Toast 的位置(gravity)与自定义样式。
+class ToastUtil {
+  ToastUtil._();
+
+  static void show(
+    String title,
+    String message, {
+    Toast toastLength = Toast.LENGTH_SHORT,
+  }) {
+    Fluttertoast.showToast(
+      msg: title.isEmpty ? message : '$title\n$message',
+      toastLength: toastLength,
+      gravity: ToastGravity.TOP,
+    );
+  }
+}
diff --git a/pubspec.lock b/pubspec.lock
index 7d1c77f..10bcdb5 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -336,6 +336,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  fluttertoast:
+    dependency: "direct main"
+    description:
+      name: fluttertoast
+      sha256: "7903c9d5339173497bfecbc23bc4212f5a87e0edfac2e1693fb74465ea67da7e"
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "9.1.0"
   get:
     dependency: "direct main"
     description:
@@ -895,4 +903,4 @@ packages:
     version: "3.1.3"
 sdks:
   dart: ">=3.11.0 <4.0.0"
-  flutter: ">=3.38.4"
+  flutter: ">=3.41.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index afdddb4..8d77638 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -43,6 +43,7 @@ dependencies:
   file_picker: ^12.0.0-beta.5
   path_provider: ^2.1.5
   permission_handler: ^12.0.0+1
+  fluttertoast: ^9.1.0
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.