diff --git a/Assets/Res/language/language.json b/Assets/Res/language/language.json
index 8359057..491c79a 100644
--- a/Assets/Res/language/language.json
+++ b/Assets/Res/language/language.json
@@ -1523,6 +1523,16 @@
     "key": "100305",
     "zh": "国家/地区",
     "en": "Country/Region"
+  },
+  {
+    "key": "100306",
+    "zh": "温馨提示",
+    "en": "Tips"
+  },
+  {
+    "key": "100307",
+    "zh": "答题进度将不会被保存，确定退出？",
+    "en": "Assessment progress will not be saved. Exit now?"
   }
 
 
diff --git a/Assets/Res/ui/safetylearningpage/safetylearningPage.prefab b/Assets/Res/ui/safetylearningpage/safetylearningPage.prefab
index 08b4536..aceba2b 100644
--- a/Assets/Res/ui/safetylearningpage/safetylearningPage.prefab
+++ b/Assets/Res/ui/safetylearningpage/safetylearningPage.prefab
@@ -5265,6 +5265,7 @@ RectTransform:
   - {fileID: 3344115969272692373}
   - {fileID: 4979664660209189838}
   - {fileID: 1852129750215414410}
+  - {fileID: 8390716373871088365}
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
@@ -5328,6 +5329,7 @@ MonoBehaviour:
   - {fileID: 9123274365802173091}
   - {fileID: 8645046711372268641}
   topUI: {fileID: 5964361374726533750}
+  backTip: {fileID: 2496965656737255716}
 --- !u!1 &9067201341321877501
 GameObject:
   m_ObjectHideFlags: 0
@@ -5866,6 +5868,262 @@ MonoBehaviour:
     type: 3}
   sonObjs: []
   questionQueue: []
+--- !u!1001 &2581667851608837118
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+    - target: {fileID: 5819498693055166909, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      propertyPath: m_Name
+      value: "\u9000\u51FA\u63D0\u9192"
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+    - target: {fileID: 5819498693055166909, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      propertyPath: m_IsActive
+      value: 0
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+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 0
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+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 0
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+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
+        type: 3}
+      propertyPath: m_LocalEulerAnglesHint.x
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      propertyPath: m_LocalEulerAnglesHint.z
+      value: 0
+      objectReference: {fileID: 0}
+    - target: {fileID: 6932510086501176331, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 100306
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+    - target: {fileID: 6936886167337472632, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      propertyPath: m_SizeDelta.x
+      value: 530
+      objectReference: {fileID: 0}
+    - target: {fileID: 6936886167337472632, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: 92
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+      value: 295
+      objectReference: {fileID: 0}
+    - target: {fileID: 6936886167337472632, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
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+      value: -140
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+      propertyPath: textKey
+      value: 100307
+      objectReference: {fileID: 0}
+    - target: {fileID: 8129608870612343553, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
+        type: 3}
+      propertyPath: m_Text
+      value: Assessment progress will not be saved. Exit now?
+      objectReference: {fileID: 0}
+    - target: {fileID: 8554119746467992561, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
+        type: 3}
+      propertyPath: m_Text
+      value: Tips
+      objectReference: {fileID: 0}
+    m_RemovedComponents: []
+    m_RemovedGameObjects: []
+    m_AddedGameObjects: []
+    m_AddedComponents: []
+  m_SourcePrefab: {fileID: 100100000, guid: 52c284b3dc8d7b94297736ede9ad1f7e, type: 3}
+--- !u!114 &2496965656737255716 stripped
+MonoBehaviour:
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+    type: 3}
+  m_PrefabInstance: {fileID: 2581667851608837118}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: ce7f9a66c3b832343bd86c4b491d90c8, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+--- !u!224 &8390716373871088365 stripped
+RectTransform:
+  m_CorrespondingSourceObject: {fileID: 6314676893636565267, guid: 52c284b3dc8d7b94297736ede9ad1f7e,
+    type: 3}
+  m_PrefabInstance: {fileID: 2581667851608837118}
+  m_PrefabAsset: {fileID: 0}
 --- !u!1001 &2596339697786043469
 PrefabInstance:
   m_ObjectHideFlags: 0
diff --git a/Assets/Res/ui/videopage/videoPage.prefab b/Assets/Res/ui/videopage/videoPage.prefab
index f15d0e5..c2fcb4d 100644
--- a/Assets/Res/ui/videopage/videoPage.prefab
+++ b/Assets/Res/ui/videopage/videoPage.prefab
@@ -2922,10 +2922,10 @@ RectTransform:
   - {fileID: 4456453622763294627}
   m_Father: {fileID: 3526220891912601925}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
-  m_AnchorMin: {x: 0.5, y: 1}
-  m_AnchorMax: {x: 0.5, y: 1}
+  m_AnchorMin: {x: 0, y: 1}
+  m_AnchorMax: {x: 1, y: 1}
   m_AnchoredPosition: {x: 0, y: -200}
-  m_SizeDelta: {x: 688, y: 60}
+  m_SizeDelta: {x: -60, y: 60}
   m_Pivot: {x: 0.5, y: 1}
 --- !u!222 &76054174154722392
 CanvasRenderer:
diff --git a/Assets/Scripts/Bluetooth/BluetoothManager.cs b/Assets/Scripts/Bluetooth/BluetoothManager.cs
index ee4d0d5..b845271 100644
--- a/Assets/Scripts/Bluetooth/BluetoothManager.cs
+++ b/Assets/Scripts/Bluetooth/BluetoothManager.cs
@@ -144,7 +144,8 @@ namespace Kill.Bluetooth
         private System.Collections.IEnumerator DelayedGoHome()
         {
             yield return new WaitForSeconds(1f);
-            UIManager.Instance?.OpenMainPage(UIManager.PageName.homePage);
+            if(UIManager.Instance.nowPageName!=UIManager.PageName.homePage)
+                UIManager.Instance?.OpenMainPage(UIManager.PageName.homePage);
         }
         void Start()
         {
diff --git a/Assets/Scripts/UI/Pages/Safetylearning/SafetylearningPageCtrl.cs b/Assets/Scripts/UI/Pages/Safetylearning/SafetylearningPageCtrl.cs
index 0835270..ef9f033 100644
--- a/Assets/Scripts/UI/Pages/Safetylearning/SafetylearningPageCtrl.cs
+++ b/Assets/Scripts/UI/Pages/Safetylearning/SafetylearningPageCtrl.cs
@@ -24,6 +24,7 @@ namespace Kill.UI.Pages
         // 题目数据
         private List<QuestionInfo> questions = new List<QuestionInfo>();
         private int currentQuestionIndex = 0;
+        public WindowTipCtrl backTip;
 
         void Awake()
         {
@@ -140,6 +141,11 @@ namespace Kill.UI.Pages
             UIManager.Instance.OpenPage(UIManager.PageName.connectDevicePage,null,true); 
         }
         public void BackAction()
+        {
+            backTip.Init(SureBack,()=>{backTip.gameObject.SetActive(false);});
+            backTip.gameObject.SetActive(true);
+        }
+        public void SureBack()
         {
             UIManager.Instance.OpenPage(UIManager.PageName.homePage,null,true);
         }