diff --git a/backend/src/handler/songs.js b/backend/src/handler/songs.js
index 4e5ad8d..2015b33 100644
--- a/backend/src/handler/songs.js
+++ b/backend/src/handler/songs.js
@@ -7,19 +7,26 @@ function buildPageUrl(source, songId) {
     if (!source || !songId) {
         return '';
     }
+    logger.info(`[buildPageUrl] source=${source}, songId=${songId}`);
     // 使用 TuneHub 格式的页面 URL
     if (source === 'netease') {
-        return `https://music-dl.sayqz.com/?source=${source}&id=${songId}`;
+        const url = `https://music-dl.sayqz.com/?source=${source}&id=${songId}`;
+        logger.info(`[buildPageUrl] Generated TuneHub URL: ${url}`);
+        return url;
     }
     if (source === 'qq') {
-        return `https://music-dl.sayqz.com/?source=${source}&id=${songId}`;
+        const url = `https://music-dl.sayqz.com/?source=${source}&id=${songId}`;
+        logger.info(`[buildPageUrl] Generated TuneHub URL: ${url}`);
+        return url;
     }
+    logger.warn(`[buildPageUrl] Unknown source: ${source}`);
     return '';
 }
 
 function mapTunehubResult(item) {
     const playUrl = item.url || buildSongUrl(item.platform, item.id);
     const pageUrl = buildPageUrl(item.platform, item.id);
+    logger.info(`[mapTunehubResult] item=${JSON.stringify(item)}, pageUrl=${pageUrl}, playUrl=${playUrl}`);
     return {
         songId: item.id || '',
         songName: item.name || '',
@@ -92,9 +99,11 @@ async function search(req, res) {
 
     const globalConfig = await configManager.getGlobalConfig();
     const enabledSources = globalConfig && Array.isArray(globalConfig.sources) ? globalConfig.sources : [];
+    logger.info(`[search] searchData.results = ${JSON.stringify(searchData.results, null, 2)}`);
     const songs = searchData.results
         .filter(item => {
             if (!item.platform) {
+                logger.warn(`[search] Filtered out item without platform: ${JSON.stringify(item)}`);
                 return false;
             }
             if (enabledSources.length === 0) {