diff --git a/src/YhCore.Common/YhCore.Common.csproj b/src/YhCore.Common/YhCore.Common.csproj
index db4c87e..cad4382 100644
--- a/src/YhCore.Common/YhCore.Common.csproj
+++ b/src/YhCore.Common/YhCore.Common.csproj
@@ -16,9 +16,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <Reference Include="Yh.Platform.Abstractions">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.Abstractions\bin\Debug\net5.0\Yh.Platform.Abstractions.dll</HintPath>
-    </Reference>
+    <!-- 平台模型与信封（DException/ErrorCode/BoaUser 等）：从 Nexus nuget-group 引用（原为本地源项目引用） -->
+    <PackageReference Include="Yh.Platform.Abstractions" Version="1.0.0-preview.1" />
   </ItemGroup>
 
 </Project>
diff --git a/src/YhCore.Service/YhCore.Service.csproj b/src/YhCore.Service/YhCore.Service.csproj
index 4270285..005bdd3 100644
--- a/src/YhCore.Service/YhCore.Service.csproj
+++ b/src/YhCore.Service/YhCore.Service.csproj
@@ -21,14 +21,10 @@
   </ItemGroup>
 
   <ItemGroup>
-    <!-- 业务异常 DException / ErrorCode / IErrorCode -->
-    <Reference Include="Yh.Platform.Abstractions">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.Abstractions\bin\Debug\net5.0\Yh.Platform.Abstractions.dll</HintPath>
-    </Reference>
-    <!-- 教务（SchClass）开放接口 SDK：教师/学校查询（C1 reviewprocess 教师类接口） -->
-    <Reference Include="Yh.SchClass.OpenApi">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.SchClass.OpenApi\bin\Debug\net5.0\Yh.SchClass.OpenApi.dll</HintPath>
-    </Reference>
+    <!-- 业务异常 DException / ErrorCode / IErrorCode：从 Nexus nuget-group 引用（原为本地源项目引用） -->
+    <PackageReference Include="Yh.Platform.Abstractions" Version="1.0.0-preview.1" />
+    <!-- 教务（SchClass）开放接口 SDK：教师/学校查询（C1 reviewprocess 教师类接口）：从 Nexus nuget-group 引用（原为本地源项目引用） -->
+    <PackageReference Include="Yh.SchClass.OpenApi" Version="1.0.0-preview.1" />
   </ItemGroup>
 
 </Project>
diff --git a/src/YhCore.WebApi/YhCore.WebApi.csproj b/src/YhCore.WebApi/YhCore.WebApi.csproj
index aa2ed62..3dc0acc 100644
--- a/src/YhCore.WebApi/YhCore.WebApi.csproj
+++ b/src/YhCore.WebApi/YhCore.WebApi.csproj
@@ -32,21 +32,12 @@
   </ItemGroup>
 
   <ItemGroup>
-    <Reference Include="Yh.Platform.Abstractions">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.Abstractions\bin\Debug\net5.0\Yh.Platform.Abstractions.dll</HintPath>
-    </Reference>
-    <Reference Include="Yh.Platform.AppAuth">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.AppAuth\bin\Debug\net5.0\Yh.Platform.AppAuth.dll</HintPath>
-    </Reference>
-    <Reference Include="Yh.Platform.Auth">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.Auth\bin\Debug\net5.0\Yh.Platform.Auth.dll</HintPath>
-    </Reference>
-    <Reference Include="Yh.Platform.OpenApi">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.Platform.OpenApi\bin\Debug\net5.0\Yh.Platform.OpenApi.dll</HintPath>
-    </Reference>
-    <Reference Include="Yh.SchClass.OpenApi">
-      <HintPath>..\..\..\yunhai.netcore.tool\BasePlatformDotnet\src\Yh.SchClass.OpenApi\bin\Debug\net5.0\Yh.SchClass.OpenApi.dll</HintPath>
-    </Reference>
+    <!-- 平台基础（Abstractions/AppAuth/Auth/OpenApi + 教务 SDK）：从 Nexus nuget-group 引用（原为本地源项目引用） -->
+    <PackageReference Include="Yh.Platform.Abstractions" Version="1.0.0-preview.1" />
+    <PackageReference Include="Yh.Platform.AppAuth" Version="1.0.0-preview.1" />
+    <PackageReference Include="Yh.Platform.Auth" Version="1.0.0-preview.1" />
+    <PackageReference Include="Yh.Platform.OpenApi" Version="1.0.0-preview.1" />
+    <PackageReference Include="Yh.SchClass.OpenApi" Version="1.0.0-preview.1" />
   </ItemGroup>
 
 </Project>