diff --git a/admin/dashboard/templates/wx_logs.html b/admin/dashboard/templates/wx_logs.html
index 0c0f718..ac06902 100644
--- a/admin/dashboard/templates/wx_logs.html
+++ b/admin/dashboard/templates/wx_logs.html
@@ -77,7 +77,7 @@
     }
     
     .log-content {
-        max-height: 600px;
+        max-height: 700px;
         overflow-y: auto;
         background-color: #f5f5f5;
         padding: 10px;
diff --git a/message_util.py b/message_util.py
index 17e5142..c9ac776 100644
--- a/message_util.py
+++ b/message_util.py
@@ -60,6 +60,35 @@ class MessageUtil:
         self.LOG.info(f"Sending file to {receiver}: {file_path}")
         self.wcf.send_file(file_path, receiver)
 
+    def send_rich_text(self, name: str, account: str, title: str, digest: str, url: str, thumburl: str, receiver: str) -> int:
+        """
+        发送富文本消息
+        
+        卡片样式：
+            |-------------------------------------|
+            |title, 最长两行                      |
+            |(长标题, 标题短的话这行没有)          |
+            |digest, 最多三行，会占位    |--------|
+            |digest, 最多三行，会占位    |thumburl|
+            |digest, 最多三行，会占位    |--------|
+            |(account logo) name                 |
+            |-------------------------------------|
+            
+        :param name: 左下显示的名字
+        :param account: 填公众号 id 可以显示对应的头像（gh_ 开头的）
+        :param title: 标题，最多两行
+        :param digest: 摘要，三行
+        :param url: 点击后跳转的链接
+        :param thumburl: 缩略图的链接
+        :param receiver: 接收人, wxid 或者 roomid
+        :return: 0 为成功，其他失败
+        """
+        # 风控处理，随机延迟发送，解决群消息高频发送导致的微信风险
+        time.sleep(random.uniform(0.5, 1.5))
+        
+        self.LOG.info(f"Sending rich text to {receiver}: {title}")
+        return self.wcf.send_rich_text(name, account, title, digest, url, thumburl, receiver)
+
     def update_contacts(self, contacts: dict) -> None:
         """
         更新联系人字典
diff --git a/plugins/group_member_change/main.py b/plugins/group_member_change/main.py
index f2bc826..a51fe0a 100644
--- a/plugins/group_member_change/main.py
+++ b/plugins/group_member_change/main.py
@@ -208,12 +208,15 @@ class GroupMemberChangePlugin(MessagePluginInterface):
         """发送成员入群通知"""
         now_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
 
-        message = f"""【入群欢迎】
+        message = f"""
 欢迎新成员: {nickname}
-入群时间: {now_time}
+⌚️: {now_time}
 """
-        # 使用message_util发送消息
-        self.message_util.send_text_msg(message, group_id)
+        # 使用message_util发送消息 编写一个 send_rich_text 方法
+        self.message_util.send_rich_text("bot", "gh_bot", f"欢迎 {nickname} 加入群聊", message,
+                                         "https://hot.imsyy.top/#/",
+                                         "https://github.com/bovine-liu/liu_icon/blob/main/icon/a-bot.jpg",
+                                         group_id)
         self.LOG.info(f"已发送入群通知: {nickname} 加入群 {group_id}")
 
     @property