diff --git a/docs/对接文档_Unity前端.md b/docs/对接文档_Unity前端.md
index 63578ff..c4974a2 100644
--- a/docs/对接文档_Unity前端.md
+++ b/docs/对接文档_Unity前端.md
@@ -39,7 +39,7 @@ src/Unity/Assets/Scripts/Managers/     ← 桥接脚本
 
 ```csharp
 var scenario = GetComponent<ScenarioManager>();
-var demos = scenario.Search("[Demo]", null, null, 1, 100);
+var demos = scenario.Search("Demo", null, null, 1, 100);
 // → 返回 6 个预设想定：
 //   [Demo] 无防御-无人机抵达目标
 //   [Demo] 管控区域侵入
diff --git a/src/CounterDrone.Core/DefaultScenarios.cs b/src/CounterDrone.Core/DefaultScenarios.cs
index 1cf67bc..8fbff47 100644
--- a/src/CounterDrone.Core/DefaultScenarios.cs
+++ b/src/CounterDrone.Core/DefaultScenarios.cs
@@ -13,8 +13,14 @@ namespace CounterDrone.Core
     {
         public static void Seed(IScenarioService scenario, DefaultData d)
         {
-            var existing = scenario.SearchTasks("[Demo]", null, null, 1, 100);
-            if (existing.TotalCount > 0) return;
+            // 检测旧格式任务（名称含 [Demo]，但 SQL LIKE 中 [] 是通配符，搜索 "Demo"）
+            var existing = scenario.SearchTasks("Demo", null, null, 1, 100);
+            if (existing.TotalCount > 0)
+            {
+                // 版本升级：删除旧 Demo 任务，重新创建
+                foreach (var t in existing.Items)
+                    scenario.DeleteTask(t.Id);
+            }
 
             SeedNoDefense(scenario, d);
             SeedZoneIntrusion(scenario, d);
diff --git a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll
index beef680..18bbd8e 100644
Binary files a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll and b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll differ
diff --git a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.pdb b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.pdb
index c35c9bd..436e525 100644
Binary files a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.pdb and b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.pdb differ
diff --git a/src/Unity/Assets/Scripts/Managers/SimulationBootstrap.cs b/src/Unity/Assets/Scripts/Managers/SimulationBootstrap.cs
index 5456498..115097f 100644
--- a/src/Unity/Assets/Scripts/Managers/SimulationBootstrap.cs
+++ b/src/Unity/Assets/Scripts/Managers/SimulationBootstrap.cs
@@ -46,7 +46,7 @@ namespace CounterDrone.Unity
             if (_usePreset)
             {
                 // 方式1：直接使用预设想定（最简单）
-                var demos = scenario.SearchTasks("[Demo]", null, null, 1, 1);
+                var demos = scenario.SearchTasks("Demo", null, null, 1, 1);
                 if (demos.TotalCount == 0)
                 {
                     Debug.LogError("无预设想定，请确认 defaults.json 已放入 StreamingAssets");