diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/IWechatWorkFinanceClient.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/IWechatWorkFinanceClient.cs
similarity index 97%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/IWechatWorkFinanceClient.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/IWechatWorkFinanceClient.cs
index 30c8f3e9..77f10673 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/IWechatWorkFinanceClient.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/IWechatWorkFinanceClient.cs
@@ -2,7 +2,7 @@ using System;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance
 {
     public interface IWechatWorkFinanceClient : IDisposable
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs
similarity index 97%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs
index 9253691d..543a6a9e 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllLinuxPInvoker.cs
@@ -1,7 +1,7 @@
 using System;
 using System.Runtime.InteropServices;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.InteropServices
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.InteropServices
 {
     internal static partial class FinanceDllLinuxPInvoker
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs
similarity index 98%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs
index 1f7a1c38..3151fdcd 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/FinanceDllWindowsPInvoker.cs
@@ -2,7 +2,7 @@ using System;
 using System.Runtime.InteropServices;
 using System.Security;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.InteropServices
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.InteropServices
 {
     internal static partial class FinanceDllWindowsPInvoker
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/MarshalerHelper.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/MarshalerHelper.cs
similarity index 92%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/MarshalerHelper.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/MarshalerHelper.cs
index 8c1bcc47..7d235472 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/InteropServices/MarshalerHelper.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/InteropServices/MarshalerHelper.cs
@@ -2,7 +2,7 @@ using System;
 using System.Runtime.InteropServices;
 using System.Text;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.InteropServices
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.InteropServices
 {
     internal static class MarshalerHelper
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/Abstractions/ChatMessage.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/Abstractions/ChatMessage.cs
similarity index 99%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/Abstractions/ChatMessage.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/Abstractions/ChatMessage.cs
index f30bf008..ae055662 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/Abstractions/ChatMessage.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/Abstractions/ChatMessage.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models.Abstractions
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models.Abstractions
 {
     public abstract class ChatMessageBase
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordRequest.cs
similarity index 93%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordRequest.cs
index a3042a37..0efca7fe 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordRequest.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之解密会话记录数据接口的请求。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordResponse.cs
similarity index 99%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordResponse.cs
index f59fd4bc..15ea2af5 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/DecryptChatRecordResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/DecryptChatRecordResponse.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之解密会话记录数据接口的响应。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsRequest.cs
similarity index 90%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsRequest.cs
index ab41ef9d..369024b2 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsRequest.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取会话记录数据接口的请求。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsResponse.cs
similarity index 97%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsResponse.cs
index 0d10735b..24a23e80 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetChatRecordsResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetChatRecordsResponse.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取会话记录数据接口的响应。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferRequest.cs
similarity index 90%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferRequest.cs
index 0d327c44..26a9530c 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferRequest.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取媒体文件分片接口的请求。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferResponse.cs
similarity index 94%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferResponse.cs
index 45d0f5b3..e9ca68d2 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileBufferResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileBufferResponse.cs
@@ -1,6 +1,6 @@
 using System.Linq;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取媒体文件分片接口的响应。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileRequest.cs
similarity index 86%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileRequest.cs
index 7636c07e..d1debebb 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileRequest.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取媒体文件接口的请求。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileResponse.cs
similarity index 89%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileResponse.cs
index b72f9242..0c163493 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Models/GetMediaFileResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Models/GetMediaFileResponse.cs
@@ -1,6 +1,6 @@
 using System.Linq;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models
 {
     /// <summary>
     /// <para>表示会话内容存档之获取媒体文件接口的响应。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/Credentials.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/Credentials.cs
similarity index 90%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/Credentials.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/Credentials.cs
index 019f87cf..21396665 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/Credentials.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/Credentials.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Settings
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Settings
 {
     public class Credentials
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyEntry.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyEntry.cs
similarity index 97%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyEntry.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyEntry.cs
index dc5e7402..1d228ea8 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyEntry.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyEntry.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Settings
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Settings
 {
     /// <summary>
     /// 表示一个企业微信会话内容存档的消息加解密密钥实体。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyManager.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyManager.cs
similarity index 96%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyManager.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyManager.cs
index dc4423d4..caef0aaf 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/Settings/EncryptionKeyManager.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/Settings/EncryptionKeyManager.cs
@@ -2,7 +2,7 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Settings
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Settings
 {
     /// <summary>
     /// 企业微信会话内容存档的消息加解密密钥管理器接口。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClient.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClient.cs
similarity index 99%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClient.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClient.cs
index d48714e7..24b15b40 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClient.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClient.cs
@@ -5,9 +5,9 @@ using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance
 {
-    using SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.InteropServices;
+    using SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.InteropServices;
 
     /// <summary>
     /// 一个企业微信会话内容存档 API HTTP 客户端。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClientOptions.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClientOptions.cs
similarity index 95%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClientOptions.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClientOptions.cs
index 33070042..3115b286 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceClientOptions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceClientOptions.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance
 {
     /// <summary>
     /// 一个用于构造 <see cref="WechatWorkFinanceClient"/> 时使用的配置项。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceException.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceException.cs
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceException.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceException.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceRequest.cs
similarity index 88%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceRequest.cs
index c24e5a8f..ccc3da03 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceRequest.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance
 {
     /// <summary>
     /// 表示企业微信会话内容存档 API 请求的基类。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceResponse.cs
similarity index 94%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceResponse.cs
index 53e76935..3f77c792 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/WechatWorkFinanceResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/WechatWorkFinanceResponse.cs
@@ -1,7 +1,6 @@
 using System;
-using System.Collections.Generic;
 
-namespace SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance
+namespace SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance
 {
     /// <summary>
     /// 表示企业微信会话内容存档 API 响应的基类。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/WeWorkFinanceSdk.dll b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/WeWorkFinanceSdk.dll
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/WeWorkFinanceSdk.dll
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/WeWorkFinanceSdk.dll
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libWeWorkFinanceSdk_C.so b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libWeWorkFinanceSdk_C.so
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libWeWorkFinanceSdk_C.so
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libWeWorkFinanceSdk_C.so
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libcrypto-1_1-x64.dll b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libcrypto-1_1-x64.dll
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libcrypto-1_1-x64.dll
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libcrypto-1_1-x64.dll
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libcurl-x64.dll b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libcurl-x64.dll
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libcurl-x64.dll
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libcurl-x64.dll
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libssl-1_1-x64.dll b/src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libssl-1_1-x64.dll
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Work/SDK/Finance/_Libs/libssl-1_1-x64.dll
rename to src/SKIT.FlurlHttpClient.Wechat.Work/ExtendedSDK/Finance/_Libs/libssl-1_1-x64.dll
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj b/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
index ac549775..1326311f 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/SKIT.FlurlHttpClient.Wechat.Work.csproj
@@ -36,7 +36,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <ContentWithTargetPath Include="SDK\Finance\_Libs\*.*">
+        <ContentWithTargetPath Include="ExtendedSDK\Finance\_Libs\*.*">
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
             <TargetPath>%(Filename)%(Extension)</TargetPath>
         </ContentWithTargetPath>
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_FinanceSdkTests.cs b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_ExtendedSDKFinanceTests.cs
similarity index 98%
rename from test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_FinanceSdkTests.cs
rename to test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_ExtendedSDKFinanceTests.cs
index 2160bfd1..7018370e 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_FinanceSdkTests.cs
+++ b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/TestCase_ExtendedSDKFinanceTests.cs
@@ -4,10 +4,11 @@ using Xunit;
 namespace SKIT.FlurlHttpClient.Wechat.Work.UnitTests
 {
     using SKIT.FlurlHttpClient;
-    using SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance;
-    using SKIT.FlurlHttpClient.Wechat.Work.SDK.Finance.Models;
+    using SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance;
+    using SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Models;
+    using SKIT.FlurlHttpClient.Wechat.Work.ExtendedSDK.Finance.Settings;
 
-    public class TestCase_FinanceSdkTests
+    public class TestCase_ExtendedSDKFinanceTests
     {
         [Fact(DisplayName = "测试用例：聊天记录 - 会话内容存档 SDK")]
         public async Task TestFinanceSdk()
@@ -17,7 +18,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.UnitTests
                 CorpId = TestConfigs.WechatCorpId,
                 SecretKey = TestConfigs.WechatFinanceSecretKey
             };
-            options.EncryptionKeyManager.AddEntry(new SDK.Finance.Settings.EncryptionKeyEntry(1, TestConfigs.WechatFinanceEncryptionPrivateKey));
+            options.EncryptionKeyManager.AddEntry(new EncryptionKeyEntry(1, TestConfigs.WechatFinanceEncryptionPrivateKey));
             using var client = new WechatWorkFinanceClient(options);
 
             var reqGetChatRecords = new GetChatRecordsRequest();
@@ -386,8 +387,8 @@ namespace SKIT.FlurlHttpClient.Wechat.Work.UnitTests
 
                     var model = serializer.Deserialize<DecryptChatRecordResponse>(json);
                     Assert.Equal("location", model.MessageType);
-                    Assert.Equal(116.586285899, model.MessageContentAsLocation!.Longitude);
-                    Assert.Equal(39.911125799, model.MessageContentAsLocation!.Latitude);
+                    Assert.Equal(116.586285899M, model.MessageContentAsLocation!.Longitude);
+                    Assert.Equal(39.911125799M, model.MessageContentAsLocation!.Latitude);
                     Assert.Equal("北京市xxx区xxx路xxx大厦x座", model.MessageContentAsLocation.Address);
                     Assert.Equal("xxx管理中心", model.MessageContentAsLocation.Title);
                     Assert.Equal(15, model.MessageContentAsLocation.Zoom);