diff --git a/backend/routes/feishu.js b/backend/routes/feishu.js
index 687cdc80..3450048d 100644
--- a/backend/routes/feishu.js
+++ b/backend/routes/feishu.js
@@ -117,9 +117,9 @@ router.post('/syslog-receive', async (req, res) => {
       });
     }
 
-    const timestamp = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19);
-    const safeDevId = String(devId).replace(/[^a-zA-Z0-9_-]/g, '');
-    const filename  = `SYSLOG-${safeDevId}-${timestamp}.json`;
+    const timestampStr = new Date().toISOString().replace(/[:.]/g, '-').slice(0, 19);
+    const safeDevId   = String(devId).replace(/[^a-zA-Z0-9_-]/g, '');
+    const filename  = `SYSLOG-${safeDevId}-${timestampStr}.json`;
     const filePath  = `syslog-inbox/${filename}`;
     const content   = Buffer.from(JSON.stringify(syslog, null, 2)).toString('base64');
 
diff --git a/scripts/bridge/fetch-broadcast.js b/scripts/bridge/fetch-broadcast.js
index 1420573a..5e05326c 100644
--- a/scripts/bridge/fetch-broadcast.js
+++ b/scripts/bridge/fetch-broadcast.js
@@ -137,7 +137,7 @@ async function getPageTitle(pageId, token) {
       return props[key].title.map(t => t.plain_text).join('');
     }
   }
-  return 'Untitled';
+  return '未命名广播';
 }
 
 // ══════════════════════════════════════════════════════════
diff --git a/scripts/bridge/upload-pdf.js b/scripts/bridge/upload-pdf.js
index a897d09e..d5f8e071 100644
--- a/scripts/bridge/upload-pdf.js
+++ b/scripts/bridge/upload-pdf.js
@@ -22,6 +22,7 @@ const fs   = require('fs');
 const path = require('path');
 
 const OUTPUT_DIR = path.join('data', 'broadcasts', 'pdf');
+const SITE_BASE_URL = 'https://guanghulab.com';
 
 // ══════════════════════════════════════════════════════════
 // 上传模式
@@ -49,10 +50,10 @@ async function uploadToServer(pdfFiles) {
 
     const filename = path.basename(pdfPath);
     const destPath = path.join(serverDir, filename);
+    const downloadUrl = `${SITE_BASE_URL}/broadcasts/${filename}`;
 
     if (isCI) {
       // CI 环境：仅记录，由部署脚本负责实际复制
-      const downloadUrl = `https://guanghulab.com/broadcasts/${filename}`;
       results.push({ ...item, download_url: downloadUrl });
       console.log(`  📋 ${filename} → ${downloadUrl} (CI模式·待部署)`);
     } else {
@@ -61,7 +62,6 @@ async function uploadToServer(pdfFiles) {
           fs.mkdirSync(serverDir, { recursive: true });
         }
         fs.copyFileSync(pdfPath, destPath);
-        const downloadUrl = `https://guanghulab.com/broadcasts/${filename}`;
         results.push({ ...item, download_url: downloadUrl });
         console.log(`  ✅ ${filename} → ${destPath}`);
       } catch (e) {