diff --git a/Yi.Ai.Vue3/src/pages/chat/layouts/chatWithId/index.vue b/Yi.Ai.Vue3/src/pages/chat/layouts/chatWithId/index.vue
index 2f43625c..e0a50833 100644
--- a/Yi.Ai.Vue3/src/pages/chat/layouts/chatWithId/index.vue
+++ b/Yi.Ai.Vue3/src/pages/chat/layouts/chatWithId/index.vue
@@ -1449,6 +1449,7 @@ onUnmounted(() => {
             // AI 内容区域左边距
             .ai-content-wrapper {
               margin-left: 36px;
+              width: calc(100% - 36px);
             }
 
             // 用户消息容器 - 宽度铺满（和 AI 消息一样）
@@ -1494,9 +1495,17 @@ onUnmounted(() => {
         width: 100%;
         max-width: 100%;
 
+        .el-bubble-content-wrapper {
+          flex: auto;
+        }
+
         .el-bubble-content {
           width: 100%;
           max-width: 100%;
+          background: transparent !important;
+          border: none !important;
+          box-shadow: none !important;
+          padding: 0;
         }
       }
 
@@ -1805,6 +1814,9 @@ onUnmounted(() => {
     width: 100%;
     max-width: 100%;
     padding: 0;
+    background: transparent;
+    border: none;
+    box-shadow: none;
 
     .markdown-body {
       width: 100%;