diff --git a/app/Http/Controllers/ChatBotController.php b/app/Http/Controllers/ChatBotController.php
index 01f8293..3e7d9c5 100644
--- a/app/Http/Controllers/ChatBotController.php
+++ b/app/Http/Controllers/ChatBotController.php
@@ -56,8 +56,12 @@ class ChatBotController extends Controller
         $request->validate([
             'message' => 'required|string|max:2000',
             'room_id' => 'required|integer',
+            'is_secret' => 'nullable|boolean',
         ]);
 
+        // 私聊模式：AI 回复也走悄悄话，仅发言人和 AI 可见
+        $isSecret = (bool) $request->input('is_secret', false);
+
         // 检查全局开关
         $enabled = Sysparam::getValue('chatbot_enabled', '0');
         if ($enabled !== '1') {
@@ -148,14 +152,14 @@ class ChatBotController extends Controller
                 }
             }
 
-            // 广播 AI 回复消息
+            // 广播 AI 回复消息（私聊模式下仅发言人与 AI 可见）
             $botMsg = [
                 'id' => $this->chatState->nextMessageId($roomId),
                 'room_id' => $roomId,
                 'from_user' => 'AI小班长',
                 'to_user' => $user->username,
                 'content' => $reply,
-                'is_secret' => false,
+                'is_secret' => $isSecret,
                 'font_color' => '#16a34a',
                 'action' => '',
                 'sent_at' => now()->toDateTimeString(),
diff --git a/resources/views/chat/partials/ai-chatbot.blade.php b/resources/views/chat/partials/ai-chatbot.blade.php
index 5c7b56e..7955e0d 100644
--- a/resources/views/chat/partials/ai-chatbot.blade.php
+++ b/resources/views/chat/partials/ai-chatbot.blade.php
@@ -6,13 +6,30 @@
      * 发送消息给 AI 机器人
      * 先在包厢窗口显示用户消息，再调用 API 获取回复
      */
-    async function sendToChatBot(content) {
+    async function sendToChatBot(content, isSecret = false) {
         if (chatBotSending) {
             window.chatDialog.alert('AI 正在思考中，请稍候...', '提示', '#336699');
             return;
         }
         chatBotSending = true;
 
+        /**
+         * 将 AI 错误提示追加到包厢窗口，样式与正常 AI 回复保持一致。
+         *
+         * @param {string} text  错误提示文本
+         */
+        function appendBotError(text) {
+            const msgBox = document.getElementById('chat-messages-container2');
+            if (!msgBox) return;
+            const errDiv = document.createElement('div');
+            errDiv.className = 'msg-line';
+            errDiv.innerHTML = `<span style="color: #dc2626;">🤖【AI小班长】${text}</span>`;
+            msgBox.appendChild(errDiv);
+            if (typeof autoScroll !== 'undefined' && autoScroll) {
+                msgBox.scrollTop = msgBox.scrollHeight;
+            }
+        }
+
         try {
             const res = await fetch(window.chatContext.chatBotUrl, {
                 method: 'POST',
@@ -24,28 +41,23 @@
                 },
                 body: JSON.stringify({
                     message: content,
-                    room_id: window.chatContext.roomId
+                    room_id: window.chatContext.roomId,
+                    is_secret: isSecret ? 1 : 0,
                 })
             });
 
             const data = await res.json();
 
             if (!res.ok || data.status !== 'success') {
-                const errDiv = document.createElement('div');
-                errDiv.className = 'msg-line';
-                errDiv.innerHTML =
-                    `<span style="color: #dc2626;">🤖【AI小班长】${data.message || '回复失败，请稍后重试'}</span>`;
-                container.appendChild(errDiv);
+                // 接口返回的错误信息：仅显示在包厢窗口，不走公屏
+                appendBotError(data.message || '回复失败，请稍后重试');
             }
         } catch (e) {
-            const errDiv = document.createElement('div');
-            errDiv.className = 'msg-line';
-            errDiv.innerHTML = '<span style="color: #dc2626;">🤖【AI小班长】网络连接错误，请稍后重试</span>';
-            container.appendChild(errDiv);
+            // 网络层异常：同样只显示在包厢窗口
+            appendBotError('网络连接错误，请稍后重试');
         }
 
         chatBotSending = false;
-        scrollToBottom();
     }
 
     /**
diff --git a/resources/views/chat/partials/scripts.blade.php b/resources/views/chat/partials/scripts.blade.php
index b476109..5a8372e 100644
--- a/resources/views/chat/partials/scripts.blade.php
+++ b/resources/views/chat/partials/scripts.blade.php
@@ -3397,7 +3397,7 @@
 
         // 如果发言对象是 AI 小助手，也发送一份给专用机器人 API，不打断正常的发消息流程
         if (toUser === 'AI小班长' && content) {
-            sendToChatBot(content); // 异步调用，不阻塞全局发送
+            sendToChatBot(content, composerState.isSecret); // 异步调用，私聊状态一并传递
         }
 
         // ── 神秘箱子暗号拦截 ────────────────────────────────────