diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ImageMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ImageMessageEvent.cs
index 85f51315..07c733a6 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ImageMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ImageMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 IMAGE 事件的数据。</para>
@@ -29,5 +29,21 @@
         [System.Text.Json.Serialization.JsonPropertyName("MediaId")]
         [System.Xml.Serialization.XmlElement("MediaId")]
         public string MediaId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("MsgDataId")]
+        [System.Text.Json.Serialization.JsonPropertyName("MsgDataId")]
+        [System.Xml.Serialization.XmlElement("MsgDataId", IsNullable = true)]
+        public string? MessageDataId { get; set; }
+
+        /// <summary>
+        /// 获取或设置图文顺序索引（从 1 开始）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("Idx")]
+        [System.Text.Json.Serialization.JsonPropertyName("Idx")]
+        [System.Xml.Serialization.XmlElement("Idx", IsNullable = true)]
+        public int? Index { get; set; }
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/LocationMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/LocationMessageEvent.cs
index fd419785..6bec6ae6 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/LocationMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/LocationMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 LOCATION 事件的数据。</para>
@@ -45,5 +45,21 @@
         [System.Text.Json.Serialization.JsonPropertyName("Label")]
         [System.Xml.Serialization.XmlElement("Label")]
         public string Label { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("MsgDataId")]
+        [System.Text.Json.Serialization.JsonPropertyName("MsgDataId")]
+        [System.Xml.Serialization.XmlElement("MsgDataId", IsNullable = true)]
+        public string? MessageDataId { get; set; }
+
+        /// <summary>
+        /// 获取或设置图文顺序索引（从 1 开始）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("Idx")]
+        [System.Text.Json.Serialization.JsonPropertyName("Idx")]
+        [System.Xml.Serialization.XmlElement("Idx", IsNullable = true)]
+        public int? Index { get; set; }
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ShortVideoMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ShortVideoMessageEvent.cs
index e3d2d623..301b9b4f 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ShortVideoMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/ShortVideoMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 SHORTVIDEO 事件的数据。</para>
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/TextMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/TextMessageEvent.cs
index 502aec54..c6848fe3 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/TextMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/TextMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 TEXT 事件的数据。</para>
@@ -21,5 +21,21 @@
         [System.Text.Json.Serialization.JsonPropertyName("Content")]
         [System.Xml.Serialization.XmlElement("Content")]
         public string Content { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("MsgDataId")]
+        [System.Text.Json.Serialization.JsonPropertyName("MsgDataId")]
+        [System.Xml.Serialization.XmlElement("MsgDataId", IsNullable = true)]
+        public string? MessageDataId { get; set; }
+
+        /// <summary>
+        /// 获取或设置图文顺序索引（从 1 开始）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("Idx")]
+        [System.Text.Json.Serialization.JsonPropertyName("Idx")]
+        [System.Xml.Serialization.XmlElement("Idx", IsNullable = true)]
+        public int? Index { get; set; }
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VideoMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VideoMessageEvent.cs
index a09a4fc7..ee9ccfb1 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VideoMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VideoMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 VIDEO 事件的数据。</para>
@@ -29,5 +29,21 @@
         [System.Text.Json.Serialization.JsonPropertyName("ThumbMediaId")]
         [System.Xml.Serialization.XmlElement("ThumbMediaId")]
         public string ThumbnailMediaId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("MsgDataId")]
+        [System.Text.Json.Serialization.JsonPropertyName("MsgDataId")]
+        [System.Xml.Serialization.XmlElement("MsgDataId", IsNullable = true)]
+        public string? MessageDataId { get; set; }
+
+        /// <summary>
+        /// 获取或设置图文顺序索引（从 1 开始）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("Idx")]
+        [System.Text.Json.Serialization.JsonPropertyName("Idx")]
+        [System.Xml.Serialization.XmlElement("Idx", IsNullable = true)]
+        public int? Index { get; set; }
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VoiceMessageEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VoiceMessageEvent.cs
index 855f5147..3aa0b411 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VoiceMessageEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Events/MpMessage/VoiceMessageEvent.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Events
+namespace SKIT.FlurlHttpClient.Wechat.Api.Events
 {
     /// <summary>
     /// <para>表示 VOICE 事件的数据。</para>
@@ -29,5 +29,21 @@
         [System.Text.Json.Serialization.JsonPropertyName("MediaId")]
         [System.Xml.Serialization.XmlElement("MediaId")]
         public string MediaId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("MsgDataId")]
+        [System.Text.Json.Serialization.JsonPropertyName("MsgDataId")]
+        [System.Xml.Serialization.XmlElement("MsgDataId", IsNullable = true)]
+        public string? MessageDataId { get; set; }
+
+        /// <summary>
+        /// 获取或设置图文顺序索引（从 1 开始）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("Idx")]
+        [System.Text.Json.Serialization.JsonPropertyName("Idx")]
+        [System.Xml.Serialization.XmlElement("Idx", IsNullable = true)]
+        public int? Index { get; set; }
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinFreePublish/CgibinFreePublishSubmitResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinFreePublish/CgibinFreePublishSubmitResponse.cs
index ddcbfc8a..59267e1a 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinFreePublish/CgibinFreePublishSubmitResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/CgibinFreePublish/CgibinFreePublishSubmitResponse.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [POST] /cgi-bin/freepublish/submit 接口的响应。</para>
@@ -11,5 +11,12 @@
         [Newtonsoft.Json.JsonProperty("publish_id")]
         [System.Text.Json.Serialization.JsonPropertyName("publish_id")]
         public string PublishId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置消息数据 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("msg_data_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("msg_data_id")]
+        public string? MessageDataId { get; set; }
     }
 }