diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
index b2bde51d..fee12aa3 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
@@ -1291,6 +1291,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
         /// <param name="request"></param>
         /// <param name="cancellationToken"></param>
         /// <returns></returns>
+        [Obsolete("相关接口或字段于 2025-07-01 下线。")]
         public static async Task<Models.ChannelsECCategoryAvailableSonCategoriesGetResponse> ExecuteChannelsECCategoryAvailableSonCategoriesGetAsync(this WechatApiClient client, Models.ChannelsECCategoryAvailableSonCategoriesGetRequest request, CancellationToken cancellationToken = default)
         {
             if (client is null) throw new ArgumentNullException(nameof(client));
@@ -1339,6 +1340,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
         /// <param name="request"></param>
         /// <param name="cancellationToken"></param>
         /// <returns></returns>
+        [Obsolete("相关接口或字段于 2025-07-01 下线。")]
         public static async Task<Models.ChannelsECCategoryAuditGetResponse> ExecuteChannelsECCategoryAuditGetAsync(this WechatApiClient client, Models.ChannelsECCategoryAuditGetRequest request, CancellationToken cancellationToken = default)
         {
             if (client is null) throw new ArgumentNullException(nameof(client));
@@ -1387,6 +1389,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
         /// <param name="request"></param>
         /// <param name="cancellationToken"></param>
         /// <returns></returns>
+        [Obsolete("相关接口或字段于 2025-07-01 下线。")]
         public static async Task<Models.ChannelsECCategoryListGetResponse> ExecuteChannelsECCategoryListGetAsync(this WechatApiClient client, Models.ChannelsECCategoryListGetRequest request, CancellationToken cancellationToken = default)
         {
             if (client is null) throw new ArgumentNullException(nameof(client));
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.cs
index 48711565..8987d346 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.cs
@@ -1,8 +1,11 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [POST] /channels/ec/category/audit/get 接口的请求。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryAuditGetRequest : WechatApiRequest, IInferable<ChannelsECCategoryAuditGetRequest, ChannelsECCategoryAuditGetResponse>
     {
         /// <summary>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.cs
index 351714e2..b728ad5a 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.cs
@@ -1,8 +1,11 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [POST] /channels/ec/category/audit/get 接口的响应。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryAuditGetResponse : WechatApiResponse
     {
         public static class Types
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.cs
index 291a0d03..60ffd700 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.cs
@@ -1,8 +1,11 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [POST] /channels/ec/category/availablesoncategories/get 接口的请求。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryAvailableSonCategoriesGetRequest : WechatApiRequest, IInferable<ChannelsECCategoryAvailableSonCategoriesGetRequest, ChannelsECCategoryAvailableSonCategoriesGetResponse>
     {
         /// <summary>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.cs
index 8af3ba0b..82cb1f75 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.cs
@@ -5,6 +5,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
     /// <summary>
     /// <para>表示 [POST] /channels/ec/category/availablesoncategories/get 接口的响应。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryAvailableSonCategoriesGetResponse : WechatApiResponse
     {
         public static class Types
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetRequest.cs
index 729c98a6..f0481b1c 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetRequest.cs
@@ -1,8 +1,11 @@
+using System;
+
 namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [GET] /channels/ec/category/list/get 接口的请求。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryListGetRequest : WechatApiRequest, IInferable<ChannelsECCategoryListGetRequest, ChannelsECCategoryListGetResponse>
     {
     }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetResponse.cs
index e22781d5..9fb71d56 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECCategory/ChannelsECCategoryListGetResponse.cs
@@ -1,8 +1,11 @@
+using System;
+
 namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [GET] /channels/ec/category/list/get 接口的响应。</para>
     /// </summary>
+    [Obsolete("相关接口或字段于 2025-07-01 下线。")]
     public class ChannelsECCategoryListGetResponse : WechatApiResponse
     {
         public static class Types
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductAddRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductAddRequest.cs
index 2220113b..37c098ce 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductAddRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductAddRequest.cs
@@ -354,10 +354,18 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
         /// <summary>
         /// 获取或设置商品副标题。
         /// </summary>
+        [Obsolete("相关接口或字段于 2025-06-16 下线。")]
         [Newtonsoft.Json.JsonProperty("sub_title")]
         [System.Text.Json.Serialization.JsonPropertyName("sub_title")]
         public string? SubTitle { get; set; }
 
+        /// <summary>
+        /// 获取或设置商品短标题。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("short_title")]
+        [System.Text.Json.Serialization.JsonPropertyName("short_title")]
+        public string? ShortTitle { get; set; }
+
         /// <summary>
         /// 获取或设置主图 URL 列表。
         /// </summary>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductGetResponse.cs
index 5c89c0e4..e6a4273c 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductGetResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductGetResponse.cs
@@ -383,10 +383,18 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
                 /// <summary>
                 /// 获取或设置商品副标题。
                 /// </summary>
+                [Obsolete("相关接口或字段于 2025-06-16 下线。")]
                 [Newtonsoft.Json.JsonProperty("sub_title")]
                 [System.Text.Json.Serialization.JsonPropertyName("sub_title")]
                 public string? SubTitle { get; set; }
 
+                /// <summary>
+                /// 获取或设置商品短标题。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("short_title")]
+                [System.Text.Json.Serialization.JsonPropertyName("short_title")]
+                public string? ShortTitle { get; set; }
+
                 /// <summary>
                 /// 获取或设置主图 URL 列表。
                 /// </summary>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductUpdateRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductUpdateRequest.cs
index c5943fa9..f8403622 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductUpdateRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECProduct/ChannelsECProductUpdateRequest.cs
@@ -146,10 +146,18 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
         /// <summary>
         /// 获取或设置商品副标题。
         /// </summary>
+        [Obsolete("相关接口或字段于 2025-06-16 下线。")]
         [Newtonsoft.Json.JsonProperty("sub_title")]
         [System.Text.Json.Serialization.JsonPropertyName("sub_title")]
         public string? SubTitle { get; set; }
 
+        /// <summary>
+        /// 获取或设置商品短标题。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("short_title")]
+        [System.Text.Json.Serialization.JsonPropertyName("short_title")]
+        public string? ShortTitle { get; set; }
+
         /// <summary>
         /// 获取或设置主图 URL 列表。
         /// </summary>
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.json
deleted file mode 100644
index 8e361082..00000000
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetRequest.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "audit_id": "123456"
-}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.json
deleted file mode 100644
index d18b65ea..00000000
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAuditGetResponse.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-    "errcode": 0,
-    "errmsg": "ok",
-    "data": {
-        "status": 9,
-        "reject_reason": "请重新提交审核"
-    }
-}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.json
deleted file mode 100644
index 648abcdb..00000000
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetRequest.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "f_cat_id": 0
-}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.json
deleted file mode 100644
index a4b67325..00000000
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryAvailableSonCategoriesGetResponse.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-    "errcode": 0,
-    "errmsg": "ok",
-    "cat_list": [
-        {
-            "cat_id": 1,
-            "f_cat_id": 0,
-            "name": "服饰"
-        },
-        {
-            "cat_id": 2,
-            "f_cat_id": 0,
-            "name": "鞋帽"
-        }
-    ],
-    "cat_list_v2": [
-        {
-            "cat_id": 1,
-            "f_cat_id": 0,
-            "name": "服饰",
-            "leaf": false
-        },
-        {
-            "cat_id": 2,
-            "f_cat_id": 0,
-            "name": "鞋帽",
-            "leaf": false
-        },
-        {
-            "cat_id": 3,
-            "f_cat_id": 0,
-            "name": "生鲜水产",
-            "leaf": false
-        }
-    ]
-}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryListGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryListGetResponse.json
deleted file mode 100644
index cfb0e49a..00000000
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECCategory/ChannelsECCategoryListGetResponse.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-    "errcode": 0,
-    "errmsg": "ok",
-    "list": [
-        {
-            "cat_id": "1003",
-            "qua_id": "0"
-        },
-        {
-            "cat_id": "1096",
-            "qua_id": "6"
-        }
-    ]
-}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductAddRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductAddRequest.json
index 40698991..6601fb40 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductAddRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductAddRequest.json
@@ -1,6 +1,6 @@
 {
     "title": "任天堂 Nintendo Switch 国行续航增强版 NS家用体感游戏机掌机 便携掌上游戏机 红蓝主机",
-    "sub_title": "随时随地，一起趣玩。",
+    "short_title": "随时随地，一起趣玩。",
     "head_imgs": [
         "https://mmecimage.cn/p/wx37f38d59298839c3/HJE9eJaEc5bJk-eaArVdILSB7MMaHgdK2-JIn51nMQ"
     ],
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductGetResponse.json
index da0952ef..8ff88844 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductGetResponse.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductGetResponse.json
@@ -5,7 +5,7 @@
         "product_id": "123456789",
         "out_product_id": "OUT_PRODUCT_ID_TEST",
         "title": "任天堂 Nintendo Switch 国行续航增强版",
-        "sub_title": "【国行Switch，更安心的保修服务，更快的国行服务器】一台主机三种模式，游戏掌机，随时随地，一起趣玩",
+        "short_title": "【国行Switch，更安心的保修服务，更快的国行服务器】一台主机三种模式，游戏掌机，随时随地，一起趣玩",
         "head_imgs": [
             "https://mmecimage.cn/p/wx37f38d59298839c3/HJE9eJaEc5bJk-eaArVdILSB7MMaHgdK2-JIn51nMQ"
         ],
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductUpdateRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductUpdateRequest.json
index 1ddc2472..cf38665b 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductUpdateRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECProduct/ChannelsECProductUpdateRequest.json
@@ -1,7 +1,7 @@
 {
     "product_id": "10000000089215",
     "title": "任天堂 Nintendo Switch 国行续航增强版 NS家用体感游戏机掌机 便携掌上游戏机 红蓝主机",
-    "sub_title": "随时随地，一起趣玩。【更新】",
+    "short_title": "随时随地，一起趣玩。【更新】",
     "head_imgs": [
         "https://mmecimage.cn/p/wx37f38d59298839c3/HJE9eJaEc5bJk-eaArVdILSB7MMaHgdK2-JIn51nMQ"
     ],