diff --git a/.local.config.js b/.local.config.js
index 46778d4..4c1ab40 100644
--- a/.local.config.js
+++ b/.local.config.js
@@ -54,6 +54,6 @@ const localDevConfig = ({
 		 uniacid: 115,
 		 domain: 'https://5g.aigc-quickapp.com/',
 	},
-})['115']; // 选择要使用的环境配置
+})['1']; // 选择要使用的环境配置
 
 export default localDevConfig;
\ No newline at end of file
diff --git a/pages_tool/ai-chat/ai-chat-message.vue b/pages_tool/ai-chat/ai-chat-message.vue
index 4518b22..04ffb06 100644
--- a/pages_tool/ai-chat/ai-chat-message.vue
+++ b/pages_tool/ai-chat/ai-chat-message.vue
@@ -209,7 +209,13 @@
           :adjust-position="true"
           :cursor-spacing="150"
           @confirm="sendMessage"
-          @input="onInput" />
+          @input="onInput"
+          @linechange="onLineChange" />
+        
+        <!-- 扩大按钮 -->
+        <button v-if="inputLineCount > 3" class="expand-btn" @click="openExpandEditor">
+          <text class="iconfont icon-expand">🔍</text>
+        </button>
         
         <!-- Emoji按钮 -->
         <button class="emoji-btn" @click="toggleEmojiPanel">
@@ -288,6 +294,32 @@
       </view>
     </view>
     
+    <!-- 扩大编辑器弹窗 -->
+    <view v-if="showExpandEditor" class="expand-editor-popup">
+      <view class="expand-editor-mask" @click="closeExpandEditor"></view>
+      <view class="expand-editor-panel">
+        <view class="expand-editor-header">
+          <text>编辑内容</text>
+          <button class="close-btn" @click="closeExpandEditor">
+            <text>×</text>
+          </button>
+        </view>
+        <textarea 
+          v-model="expandInputText" 
+          class="expand-editor-input"
+          placeholder="请输入您的问题..."
+          :maxlength="500"
+          :auto-height="true"
+          :show-confirm-bar="false"
+          :adjust-position="true"
+          :focus="true" />
+        <view class="expand-editor-footer">
+          <button class="expand-cancel-btn" @click="closeExpandEditor">取消</button>
+          <button class="expand-send-btn" @click="sendFromExpandEditor" :disabled="!expandInputText.trim()">发送</button>
+        </view>
+      </view>
+    </view>
+    
     <!-- 语音输入面板 -->
     <view v-if="enalbeVoicePanelShow" class="voice-popup">
       <view class="voice-mask" @click="hideVoicePanel"></view>
@@ -439,6 +471,10 @@ export default {
       showToolsPanel: false,
       enalbeVoicePanelShow: false,
       showEmojiPanel: false,
+      // 扩大编辑器相关
+      showExpandEditor: false,
+      expandInputText: '',
+      inputLineCount: 0,
       emojiList: ['😀','😃','😄','😁','😆','😅','🤣','😂','🙂','🙃','😉','😊','😇','🥰','😍','🤩','😘','😗','😚','😋','😛','😜','🤪','😝','🤑','🤗','🤭','🤫','🤔','🤐','🤨','😐','😑','😶','😏','😒','🙄','😬','🤥','😌','😔','😪','🤤','😴','😷','🤒','🤕','🤢','🤮','🤧','🥵','🥶','🥴','😵','🤯','🤠','🥳','😎','🤓','🧐','😕','😟','🙁','😮','😯','😲','😳','🥺','😦','😧','😨','😰','😥','😢','😭','😱','😖','😣','😞','😓','😩','😫','🥱','😤','😡','😠','🤬','😈','👿','💀','💩','👻','👽','🤖','🎃','😺','😸','😹','😻','😼','😽','🙀','😿','😾','👋','🤚','🖐','✋','🖖','👌','🤏','✌','🤞','🤟','🤘','🤙','👈','👉','👆','🖕','👇','☝','👍','👎','✊','👊','🤛','🤜','👏','🙌','👐','🤲','🤝','🙏','✍','💅','🤳','💪','💗','💓','💕','💖','💝','💞','💘','💌','💟','💛','💙','💜','🖤','💔','💢','💣','💥','💫','💦','💨','👁','👀','👅','👄','👂','👃','👶','👦','👧','👨','👩','👴','👵','👱','👲','👳','👴','👵','👶','👼','👸','🎅','🤶','🦸','🦹','🧙','🧚','🧛','🧜','🧝','🧞','🧟','🦄','🐶','🐱','🐭','🐹','🐰','🦊','🐻','🐼','🐨','🐯','🦁','🐮','🐷','🐸','🐵','🙈','🙉','🙊','🐒','🐔','🐧','🐦','🐤','🐣','🐥','🦆','🦅','🦉','🦇','🐺','🐗','🐴','🦄','🐝','🐛','🦋','🐌','🐞','🐜','🦟','🦗','🕷','🦂','🐢','🐍','🦎','🦖','🦕','🐙','🦑','🦐','🦞','🦀','🐡','🐠','🐟','🐬','🐳','🐋','🦈','🐊','🐅','🐆','🦓','🦍','🦧','🐘','🦛','🦏','🐪','🐫','🦒','🦘','🐃','🐂','🐄','🐎','🐖','🐏','🐑','🐐','🐓','🦃','🦚','🦜','🦢','🦩','🕊','🐕','🐩','🐈','🐓','🐇','🐁','🐀','🐿','🦔','🐾','🐉','🐲'],
       streamingMessage: null,
       streamInterval: null,
@@ -1574,6 +1610,37 @@ async loadChatHistoryIfExist() {
       this.$emit('input-change', e.detail.value)
     },
     
+    // 输入框行数变化事件
+    onLineChange(e) {
+      this.inputLineCount = e.detail.lineCount || 0
+    },
+    
+    // 打开扩大编辑器
+    openExpandEditor() {
+      this.expandInputText = this.inputText
+      this.showExpandEditor = true
+      this.hideEmojiPanel()
+      this.hideToolsPanel()
+    },
+    
+    // 关闭扩大编辑器
+    closeExpandEditor() {
+      this.showExpandEditor = false
+      this.expandInputText = ''
+    },
+    
+    // 从扩大编辑器发送消息
+    async sendFromExpandEditor() {
+      if (!this.expandInputText.trim()) {
+        return
+      }
+      
+      this.inputText = this.expandInputText
+      this.closeExpandEditor()
+      
+      await this.sendMessage()
+    },
+    
     // 处理头像加载失败
     handleAvatarError() {
       this.avatarError = true
@@ -3594,4 +3661,142 @@ $radius-lg: 36rpx;
     }
   }
 }
+
+/* 扩大按钮 */
+.expand-btn {
+  width: 72rpx;
+  height: 72rpx;
+  border-radius: 12rpx;
+  margin-left: 12rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+  background-color: #f2f2f2;
+  padding: 0;
+  
+  .iconfont {
+    font-size: 36rpx;
+    line-height: 1;
+  }
+}
+
+/* 扩大编辑器弹窗 */
+.expand-editor-popup {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  z-index: 1000;
+  display: flex;
+  flex-direction: column;
+  
+  .expand-editor-mask {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: rgba(0, 0, 0, 0.4);
+    backdrop-filter: blur(6rpx);
+  }
+  
+  .expand-editor-panel {
+    position: relative;
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    background-color: #fff;
+    border-radius: 0;
+    margin-top: 100rpx;
+    
+    .expand-editor-header {
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      padding: 24rpx 32rpx;
+      border-bottom: 1rpx solid #e5e5e5;
+      background-color: #f9f9f9;
+      
+      text {
+        font-size: 32rpx;
+        font-weight: 500;
+        color: #333;
+      }
+      
+      .close-btn {
+        width: 64rpx;
+        height: 64rpx;
+        border-radius: 50%;
+        background-color: transparent;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        border: none;
+        padding: 0;
+        
+        text {
+          font-size: 48rpx;
+          color: #999;
+          line-height: 1;
+        }
+      }
+    }
+    
+    .expand-editor-input {
+      flex: 1;
+      min-height: 300rpx;
+      max-height: none;
+      padding: 32rpx;
+      font-size: 30rpx;
+      line-height: 1.6;
+      background-color: #fff;
+      border: none;
+      color: #333;
+    }
+    
+    .expand-editor-footer {
+      display: flex;
+      align-items: center;
+      justify-content: space-between;
+      padding: 24rpx 32rpx;
+      border-top: 1rpx solid #e5e5e5;
+      background-color: #f9f9f9;
+      padding-bottom: calc(24rpx + env(safe-area-inset-bottom));
+      
+      .expand-cancel-btn {
+        width: 160rpx;
+        height: 80rpx;
+        border-radius: 40rpx;
+        background-color: #f2f2f2;
+        color: #666;
+        font-size: 28rpx;
+        border: none;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+      }
+      
+      .expand-send-btn {
+        width: 160rpx;
+        height: 80rpx;
+        border-radius: 40rpx;
+        background-color: #07c160;
+        color: #fff;
+        font-size: 28rpx;
+        font-weight: 500;
+        border: none;
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        
+        &[disabled] {
+          background-color: #ccc;
+          opacity: 0.7;
+        }
+      }
+    }
+  }
+}
 </style>