diff --git a/docs/对接文档_Unity前端.md b/docs/对接文档_Unity前端.md
index 006eddf..8288382 100644
--- a/docs/对接文档_Unity前端.md
+++ b/docs/对接文档_Unity前端.md
@@ -13,8 +13,10 @@
 ```
 src/Unity/Assets/Plugins/              ← DLL（Core + sqlite + JSON）
 src/Unity/Assets/Scripts/Managers/     ← 桥接脚本
-data/defaults.json                     ← 默认数据（弹药/航线/火力单元/无人机/天气，放到 persistentDataPath 下）
-data/planner_config.json               ← 规划器配置（放到 persistentDataPath 下）
+
+将以下文件放到 Unity 项目 Assets/StreamingAssets/ 目录下：
+  data/defaults.json                    ← 默认数据（首次运行自动复制到 persistentDataPath）
+  data/planner_config.json              ← 规划器配置（同上）
 ```
 
 ---
diff --git a/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll b/src/Unity/Assets/Plugins/CounterDrone.Core/CounterDrone.Core.dll
index e1351ae..3a16729 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 01a3dce..0959f3e 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/UnityPathProvider.cs b/src/Unity/Assets/Scripts/Managers/UnityPathProvider.cs
index ed542b8..c774f63 100644
--- a/src/Unity/Assets/Scripts/Managers/UnityPathProvider.cs
+++ b/src/Unity/Assets/Scripts/Managers/UnityPathProvider.cs
@@ -7,6 +7,7 @@ namespace CounterDrone.Unity
     public class UnityPathProvider : IPathProvider
     {
         private string _root;
+        private bool _copied;
 
         public string GetDataRoot()
         {
@@ -14,10 +15,27 @@ namespace CounterDrone.Unity
             {
                 _root = Application.persistentDataPath;
                 Directory.CreateDirectory(_root);
+                CopyDataFiles();
             }
             return _root;
         }
 
+        /// <summary>首次运行时从 StreamingAssets 复制默认数据文件到 persistentDataPath</summary>
+        private void CopyDataFiles()
+        {
+            if (_copied) return;
+            _copied = true;
+            var sourceDir = Application.streamingAssetsPath;
+            if (!Directory.Exists(sourceDir)) return;
+            foreach (var file in new[] { "defaults.json", "planner_config.json" })
+            {
+                var dst = Path.Combine(_root, file);
+                if (File.Exists(dst)) continue;
+                var src = Path.Combine(sourceDir, file);
+                if (File.Exists(src)) File.Copy(src, dst);
+            }
+        }
+
         public string GetMainDbPath() => Path.Combine(GetDataRoot(), "main.db");
 
         public string GetFramesDir()