diff --git a/src-tauri/src/downloader.rs b/src-tauri/src/downloader.rs
index ad78910..b9acb60 100644
--- a/src-tauri/src/downloader.rs
+++ b/src-tauri/src/downloader.rs
@@ -58,7 +58,7 @@ pub struct LogEvent {
 pub async fn fetch_metadata(app: &AppHandle, url: &str, parse_mix_playlist: bool) -> Result<MetadataResult> {
     app.emit("download-log", LogEvent {
         id: "Analysis".to_string(),
-        message: format!("Starting metadata fetch for URL: {}", url),
+        message: format!("正在为 URL: {} 获取元数据", url),
         level: "info".to_string(),
     }).ok();
 
@@ -93,7 +93,7 @@ pub async fn fetch_metadata(app: &AppHandle, url: &str, parse_mix_playlist: bool
         let stderr = String::from_utf8_lossy(&output.stderr);
         app.emit("download-log", LogEvent {
             id: "Analysis".to_string(),
-            message: format!("Metadata fetch failed: {}", stderr),
+            message: format!("元数据获取失败: {}", stderr),
             level: "error".to_string(),
         }).ok();
         return Err(anyhow!("yt-dlp error: {}", stderr));
@@ -120,7 +120,7 @@ pub async fn fetch_metadata(app: &AppHandle, url: &str, parse_mix_playlist: bool
 
             app.emit("download-log", LogEvent {
                 id: "Analysis".to_string(),
-                message: "Metadata fetch success (Playlist)".to_string(),
+                message: "元数据获取成功（播放列表）".to_string(),
                 level: "info".to_string(),
             }).ok();
 
@@ -132,7 +132,7 @@ pub async fn fetch_metadata(app: &AppHandle, url: &str, parse_mix_playlist: bool
     let result = MetadataResult::Video(parse_video_metadata(&json));
     app.emit("download-log", LogEvent {
         id: "Analysis".to_string(),
-        message: "Metadata fetch success (Video)".to_string(),
+        message: "元数据获取成功（视频）".to_string(),
         level: "info".to_string(),
     }).ok();
 
@@ -201,7 +201,7 @@ pub async fn download_video(
     let full_cmd_str = format!("{} {}", ytdlp_path.to_string_lossy(), args.join(" "));
     app.emit("download-log", LogEvent {
         id: id.clone(),
-        message: format!("Executing command: {}", full_cmd_str),
+        message: format!("正在执行命令: {}", full_cmd_str),
         level: "info".to_string(),
     }).ok();
 
@@ -241,7 +241,7 @@ pub async fn download_video(
                             app.emit("download-progress", ProgressEvent {
                                 id: id.clone(),
                                 progress: pct,
-                                speed: "TODO".to_string(),
+                                speed: "待定".to_string(),
                                 status: "downloading".to_string(),
                             }).ok();
                         }
@@ -276,7 +276,7 @@ pub async fn download_video(
             speed: "-".to_string(),
             status: "finished".to_string(),
         }).ok();
-        Ok("Download complete".to_string())
+        Ok("下载完成".to_string())
     } else {
          app.emit("download-progress", ProgressEvent {
             id: id.clone(),
@@ -284,6 +284,6 @@ pub async fn download_video(
             speed: "-".to_string(),
             status: "error".to_string(),
         }).ok();
-        Err(anyhow!("Download process failed"))
+        Err(anyhow!("下载进程失败"))
     }
 }
diff --git a/src/App.vue b/src/App.vue
index fd05086..1deb4d7 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -23,7 +23,7 @@ onMounted(async () => {
 <template>
   <div class="flex h-screen bg-gray-50 dark:bg-zinc-950 text-zinc-900 dark:text-gray-100 font-sans overflow-hidden">
     <!-- Sidebar -->
-    <aside class="w-20 lg:w-64 bg-white dark:bg-zinc-900 border-r border-gray-200 dark:border-zinc-800 flex flex-col flex-shrink-0">
+    <aside class="w-20 lg:w-56 bg-white dark:bg-zinc-900 border-r border-gray-200 dark:border-zinc-800 flex flex-col flex-shrink-0">
       <div class="p-6 flex items-center gap-3 justify-center lg:justify-start">
         <div class="w-8 h-8 bg-blue-600 rounded-lg flex items-center justify-center text-white shrink-0">
            <Download class="w-5 h-5" />