diff --git a/pkg/dal/core/core_biz.go b/pkg/dal/core/core_biz.go
index 93b0a7e..010c8aa 100644
--- a/pkg/dal/core/core_biz.go
+++ b/pkg/dal/core/core_biz.go
@@ -1,6 +1,7 @@
 package core
 
 import (
+	"encoding/json"
 	"fmt"
 	"intent-system/pkg/config"
 	"intent-system/pkg/dal/dao"
@@ -145,7 +146,16 @@ func (m *BizCore) NewsEdit(ctx *itypes.Context, req *proto.NewsEditReq) (resp *p
 	if err != nil {
 		return nil, itypes.NewBizCodeDatabaseError(err.Error())
 	}
-	news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Edit)
+	// news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Edit)
+	var prevLogs []*models.ChangeLog
+	if raw, ok := news.ExtraData["logs"]; ok {
+		if arr, ok := raw.([]interface{}); ok {
+			// 先 marshal 回去再 unmarshal 成 []*ChangeLog（通用做法）
+			bytes, _ := json.Marshal(arr)
+			_ = json.Unmarshal(bytes, &prevLogs)
+		}
+	}
+	news.ExtraData["logs"] = models.MakeChangeLog(prevLogs, ctx.UserName(), models.OperType_Edit)
 	_, err = m.newsDAO.Update(&models.NewsDO{
 		Id:        news.Id,
 		ExtraData: news.ExtraData,
@@ -171,7 +181,16 @@ func (m *BizCore) NewsDelete(ctx *itypes.Context, req *proto.NewsDeleteReq) (res
 			return nil, itypes.NewBizCode(itypes.CODE_INVALID_PARAMS, err.Error())
 		}
 
-		news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Delete)
+		// news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Delete)
+		var prevLogs []*models.ChangeLog
+		if raw, ok := news.ExtraData["logs"]; ok {
+			if arr, ok := raw.([]interface{}); ok {
+				// 尝试转成 []*ChangeLog
+				bytes, _ := json.Marshal(arr)
+				_ = json.Unmarshal(bytes, &prevLogs)
+			}
+		}
+		news.ExtraData["logs"] = models.MakeChangeLog(prevLogs, ctx.UserName(), models.OperType_Delete)
 
 		_, err = m.newsDAO.Update(&models.NewsDO{
 			Id:        id,
@@ -282,7 +301,8 @@ func (m *BizCore) NewsDraftPublish(ctx *itypes.Context, req *proto.NewsDraftPubl
 			ImageUrl:    draft.ImageUrl,
 			Content:     draft.Content,
 			Language:    draft.Language,
-			ExtraData:   models.CommonExtraData{},
+			// ExtraData:   models.CommonExtraData{},
+			ExtraData: map[string]interface{}{}, // ✅ 替代旧结构体
 		})
 		if err != nil {
 			return nil, itypes.NewBizCodeDatabaseError(err.Error())
@@ -751,7 +771,19 @@ func (m *BizCore) SubEditNews(ctx *itypes.Context, req *proto.SubEditNewsReq) (r
 	news.Tags = req.Tags
 	news.ImageUrl = req.ImageUrl
 	news.Content = req.Content
-	news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Edit)
+	// news.ExtraData.Logs = models.MakeChangeLog(news.ExtraData.Logs, ctx.UserName(), models.OperType_Edit)
+
+	var prevLogs []*models.ChangeLog
+	if raw, ok := news.ExtraData["logs"]; ok {
+		if arr, ok := raw.([]interface{}); ok {
+			// 安全解析为 []*ChangeLog
+			if bytes, err := json.Marshal(arr); err == nil {
+				_ = json.Unmarshal(bytes, &prevLogs)
+			}
+		}
+	}
+	news.ExtraData["logs"] = models.MakeChangeLog(prevLogs, ctx.UserName(), models.OperType_Edit)
+
 	_, err = m.newsDAO.Update(news,
 		models.NEWS_COLUMN_CATEGORY,
 		models.NEWS_COLUMN_MAIN_TITLE,