diff --git a/src/renderer/components/input-area.ts b/src/renderer/components/input-area.ts
index b48d093..91a955f 100644
--- a/src/renderer/components/input-area.ts
+++ b/src/renderer/components/input-area.ts
@@ -254,6 +254,7 @@ async function handleVideoPath(filePath: string): Promise<void> {
 
   // 日志：开始 → 进度（原地更新） → 完成
   logInfo('🎬 正在提取视频帧', name);
+  appendSystemMessage(`🎬 正在提取视频帧 (1fps): ${name}...`);
   pendingVideoMeta = { fileName: name, duration: 0, width: 0, height: 0 };
   renderVideoPreview();
   resetVideoProgress(name);
@@ -274,6 +275,7 @@ async function handleVideoPath(filePath: string): Promise<void> {
       pendingVideoFrames = [];
       pendingVideoMeta = null;
       renderVideoPreview();
+      appendSystemMessage(`❌ 视频帧提取失败: ${result.error || ''}`);
       logError('视频帧提取失败', result.error || '');
       return;
     }
@@ -283,12 +285,14 @@ async function handleVideoPath(filePath: string): Promise<void> {
 
     // 完成：新加一条 success 日志，进度条目保留原地
     logSuccess('✅ 视频帧提取完成', `${pendingVideoFrames.length} 帧 / ${pendingVideoMeta.duration.toFixed(1)}s (1fps)`);
+    appendSystemMessage(`✅ ${name}: 已提取 ${pendingVideoFrames.length} 帧 (1fps 采样)`);
     renderVideoPreview();
   } catch (err) {
     bridge.video.removeProgressListener();
     pendingVideoFrames = [];
     pendingVideoMeta = null;
     renderVideoPreview();
+    appendSystemMessage(`❌ 视频处理失败: ${(err as Error).message}`);
     logError('视频帧提取失败', (err as Error).message);
   }
 }