diff --git a/components/SmartChatBox/InputBar.tsx b/components/SmartChatBox/InputBar.tsx
index 1785d0a..ea3cde8 100644
--- a/components/SmartChatBox/InputBar.tsx
+++ b/components/SmartChatBox/InputBar.tsx
@@ -246,6 +246,7 @@ export function InputBar({ onSend, setVideoPreview, initialVideoUrl, initialVide
             {/* 图片上传按钮 - 单行时显示在左侧 */}
             {!isMultiline && (
               <motion.label 
+                key="single-line-upload"
                 initial={{ opacity: 0, scale: 0.8 }}
                 animate={{ opacity: 1, scale: 1 }}
                 exit={{ opacity: 0, scale: 0.8 }}
@@ -264,7 +265,7 @@ export function InputBar({ onSend, setVideoPreview, initialVideoUrl, initialVide
             )}
 
             {/* 文本输入 */}
-            <motion.div layout className="flex-1 flex">
+            <motion.div layout key="text-input" className="flex-1 flex">
               <textarea
                 ref={textareaRef}
                 placeholder="输入文字…"
@@ -295,6 +296,7 @@ export function InputBar({ onSend, setVideoPreview, initialVideoUrl, initialVide
             {isMultiline ? (
               // 多行模式：底部按钮区域
               <motion.div 
+                key="multi-line-buttons"
                 layout
                 initial={{ opacity: 0, y: -10 }}
                 animate={{ opacity: 1, y: 0 }}
@@ -303,6 +305,7 @@ export function InputBar({ onSend, setVideoPreview, initialVideoUrl, initialVide
               >
                 {/* 图片上传 */}
                 <motion.label 
+                  key="multi-line-upload"
                   whileHover={{ scale: 1.05 }}
                   whileTap={{ scale: 0.95 }}
                   className={`cursor-pointer inline-flex items-center gap-2 p-2 rounded-full hover:bg-gray-700/50 text-gray-100 ${isUploading ? 'opacity-50 cursor-not-allowed' : ''}`} 
@@ -333,6 +336,7 @@ export function InputBar({ onSend, setVideoPreview, initialVideoUrl, initialVide
             ) : (
               // 单行模式：发送按钮
               <motion.button
+                key="single-line-send"
                 whileHover={{ scale: 1.05 }}
                 whileTap={{ scale: 0.95 }}
                 onClick={handleSend}