diff --git a/unity/Assets/Scenes/Gameplay.unity b/unity/Assets/Scenes/Gameplay.unity
index 8d5d5c5..c73fdb1 100644
--- a/unity/Assets/Scenes/Gameplay.unity
+++ b/unity/Assets/Scenes/Gameplay.unity
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@@ -1089,12 +1077,19 @@ MonoBehaviour:
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   dimBackground: {fileID: 637101930}
   lostTitleText: {fileID: 0}
-  lostTitleImage: {fileID: 0}
+  lostTitleImage: {fileID: 68438040}
   leftDecoration: {fileID: 0}
   rightDecoration: {fileID: 0}
   mainMenuButton: {fileID: 549601800}
   mainMenuButtonImage: {fileID: 549601797}
   lostSFX: {fileID: 0}
+  titleFadeDuration: 1.5
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+  rippleScaleAmplitude: 0.08
+  rippleFrequency: 15
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   m_EditorClassIdentifier: 
   m_Material: {fileID: 0}
-  m_Color: {r: 1, g: 1, b: 1, a: 0.2}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
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-  m_Children:
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+  m_Children: []
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   m_AnchorMax: {x: 0.5, y: 0.5}
-  m_AnchoredPosition: {x: 0, y: -80}
-  m_SizeDelta: {x: 200, y: 60}
+  m_AnchoredPosition: {x: 0, y: -324.07}
+  m_SizeDelta: {x: 320, y: 180}
   m_Pivot: {x: 0.5, y: 0.5}
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-  m_AnchorMax: {x: 1, y: 1}
-  m_AnchoredPosition: {x: 0, y: 0}
-  m_SizeDelta: {x: 0, y: 0}
+  m_AnchorMin: {x: 0.5, y: 0.5}
+  m_AnchorMax: {x: 0.5, y: 0.5}
+  m_AnchoredPosition: {x: 49, y: 189}
+  m_SizeDelta: {x: 1169, y: 243}
   m_Pivot: {x: 0.5, y: 0.5}
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@@ -10321,14 +10235,14 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   m_Material: {fileID: 0}
-  m_Color: {r: 0, g: 0, b: 0, a: 0.6}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
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   m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
   m_Maskable: 1
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     m_PersistentCalls:
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-  m_Sprite: {fileID: 0}
+  m_Sprite: {fileID: 21300000, guid: 0f01c8b108b020b4ea35929b92863b2d, type: 3}
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   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
-  m_Children:
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+  m_Children: []
   m_Father: {fileID: 1490576152}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
@@ -24794,6 +24707,7 @@ RectTransform:
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   - {fileID: 549601799}
   m_Father: {fileID: 1430258820}
diff --git a/unity/Assets/UI/GameLostOverlay.cs b/unity/Assets/UI/GameLostOverlay.cs
index 3508e49..8c32a37 100644
--- a/unity/Assets/UI/GameLostOverlay.cs
+++ b/unity/Assets/UI/GameLostOverlay.cs
@@ -167,6 +167,23 @@ namespace GameFramework
             // 显示鼠标
             Cursor.visible = true;
             Cursor.lockState = CursorLockMode.None;
+
+            // 确保 EventSystem 有输入模块（UI 点击必需）
+            EnsureEventSystemInputModule();
+        }
+
+        /// <summary>
+        /// 确保 EventSystem 有 StandaloneInputModule，否则 UI 按钮无法响应点击。
+        /// </summary>
+        private void EnsureEventSystemInputModule()
+        {
+            var es = UnityEngine.EventSystems.EventSystem.current;
+            if (es == null) return;
+            if (es.GetComponent<UnityEngine.EventSystems.StandaloneInputModule>() == null)
+            {
+                es.gameObject.AddComponent<UnityEngine.EventSystems.StandaloneInputModule>();
+                Debug.Log("[GameLostOverlay] 已自动添加 StandaloneInputModule");
+            }
         }
 
         /// <summary>
diff --git a/unity/Assets/UI/Materials/WaterRippleFade.mat b/unity/Assets/UI/Materials/WaterRippleFade.mat
index 8d48cfe..b0dcea3 100644
--- a/unity/Assets/UI/Materials/WaterRippleFade.mat
+++ b/unity/Assets/UI/Materials/WaterRippleFade.mat
@@ -1,5 +1,5 @@
 %YAML 1.1
-%TAG !u! tag:unity3d.com,2011:
+%TAG !u! tag:yousandi.cn,2023:
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@@ -8,7 +8,7 @@ Material:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_Name: WaterRippleFade
-  m_Shader: {fileID: 4800000, guid: CH0X5HutAHIq8wKmwmbkjKJlHGH/OREG19hBK3xdhB3plPoFMK+U1dw=, type: 3}
+  m_Shader: {fileID: 4800000, guid: 778aa0c9156d7a348908bdd760332458, type: 3}
   m_Parent: {fileID: 0}
   m_ModifiedSerializedProperties: 0
   m_ValidKeywords: []
@@ -23,18 +23,48 @@ Material:
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     serializedVersion: 3
     m_TexEnvs:
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+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - Normal_Map:
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+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MainBump:
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+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     - _MainTex:
         m_Texture: {fileID: 0}
         m_Scale: {x: 1, y: 1}
         m_Offset: {x: 0, y: 0}
+    - unity_Lightmaps:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - unity_LightmapsInd:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - unity_ShadowMasks:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
     m_Ints: []
     m_Floats:
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     - _ColorMask: 15
+    - _DecalMeshBiasType: 0
+    - _DecalMeshDepthBias: 0
+    - _DecalMeshViewBias: 0
+    - _DrawOrder: 0
     - _FadeAlpha: 1
-    - _RippleAmplitude: 0.02
-    - _RippleFrequency: 8
-    - _RippleIntensity: 1
+    - _RippleAmplitude: 0.0412
+    - _RippleFrequency: 10.5
+    - _RippleIntensity: -0
     - _RippleSpeed: 3
+    - _Shininess: 0.2
     - _Stencil: 0
     - _StencilComp: 8
     - _StencilOp: 0
@@ -43,4 +73,5 @@ Material:
     - _UseUIAlphaClip: 0
     m_Colors:
     - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _Specular: {r: 0, g: 0, b: 0, a: 0}
   m_BuildTextureStacks: []