diff --git a/src/main/index.ts b/src/main/index.ts
index 9b6edfc..464db75 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -3,6 +3,14 @@ import { join } from 'path'
 import { electronApp, optimizer, is } from '@electron-toolkit/utils'
 import icon from '../../resources/icon.png?asset'
 import { registerIpcHandlers } from './ipc'
+import * as dotenv from 'dotenv'
+import { fileURLToPath } from 'url'
+import { dirname, resolve } from 'path'
+
+// Load environment variables from .env file
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = dirname(__filename)
+dotenv.config({ path: resolve(__dirname, '../../.env') })
 
 function createWindow(): void {
   // Create the browser window.
diff --git a/src/main/ipc/cleaner-handler.ts b/src/main/ipc/cleaner-handler.ts
index a410144..f11b27b 100644
--- a/src/main/ipc/cleaner-handler.ts
+++ b/src/main/ipc/cleaner-handler.ts
@@ -16,31 +16,54 @@ export function registerCleanerHandlers(): void {
       let authService: ErpAuthService | null = null
 
       try {
+        // Check environment variables
+        const erpUrl = process.env.ERP_URL || ''
+        const erpUsername = process.env.ERP_USERNAME || ''
+        const erpPassword = process.env.ERP_PASSWORD || ''
+
+        console.log('[Cleaner] Config:', {
+          url: erpUrl ? '***' : 'EMPTY',
+          username: erpUsername ? '***' : 'EMPTY'
+        })
+
+        if (!erpUrl || !erpUsername || !erpPassword) {
+          throw new Error(
+            'ERP 配置不完整。请检查 .env 文件中的 ERP_URL, ERP_USERNAME, ERP_PASSWORD'
+          )
+        }
+
         // Create auth service and login
         authService = new ErpAuthService({
-          url: process.env.ERP_URL || '',
-          username: process.env.ERP_USERNAME || '',
-          password: process.env.ERP_PASSWORD || '',
+          url: erpUrl,
+          username: erpUsername,
+          password: erpPassword,
           headless: true
         })
 
+        console.log('[Cleaner] Logging in to ERP...')
         await authService.login()
+        console.log('[Cleaner] Login successful')
 
         // Create cleaner service and run cleaning
         const cleaner = new CleanerService(authService)
+        console.log('[Cleaner] Starting cleaning:', input)
         const result = await cleaner.clean(input)
+        console.log('[Cleaner] Cleaning completed:', result)
 
         return { success: true, data: result }
       } catch (error) {
         const message = error instanceof Error ? error.message : 'Unknown error'
-        return { success: false, error: message }
+        console.error('[Cleaner] Error:', message)
+        console.error('[Cleaner] Stack:', error instanceof Error ? error.stack : 'N/A')
+        return { success: false, error: `清理失败：${message}` }
       } finally {
         // Clean up: close browser
         if (authService) {
           try {
             await authService.close()
-          } catch {
-            // Ignore cleanup errors
+            console.log('[Cleaner] Browser closed')
+          } catch (closeError) {
+            console.warn('[Cleaner] Error closing browser:', closeError)
           }
         }
       }
diff --git a/src/main/ipc/extractor-handler.ts b/src/main/ipc/extractor-handler.ts
index ec6a2ff..b3486dd 100644
--- a/src/main/ipc/extractor-handler.ts
+++ b/src/main/ipc/extractor-handler.ts
@@ -16,31 +16,54 @@ export function registerExtractorHandlers(): void {
       let authService: ErpAuthService | null = null
 
       try {
+        // Check environment variables
+        const erpUrl = process.env.ERP_URL || ''
+        const erpUsername = process.env.ERP_USERNAME || ''
+        const erpPassword = process.env.ERP_PASSWORD || ''
+
+        console.log('[Extractor] Config:', {
+          url: erpUrl ? '***' : 'EMPTY',
+          username: erpUsername ? '***' : 'EMPTY'
+        })
+
+        if (!erpUrl || !erpUsername || !erpPassword) {
+          throw new Error(
+            'ERP 配置不完整。请检查 .env 文件中的 ERP_URL, ERP_USERNAME, ERP_PASSWORD'
+          )
+        }
+
         // Create auth service and login
         authService = new ErpAuthService({
-          url: process.env.ERP_URL || '',
-          username: process.env.ERP_USERNAME || '',
-          password: process.env.ERP_PASSWORD || '',
+          url: erpUrl,
+          username: erpUsername,
+          password: erpPassword,
           headless: true
         })
 
+        console.log('[Extractor] Logging in to ERP...')
         await authService.login()
+        console.log('[Extractor] Login successful')
 
         // Create extractor service and run extraction
         const extractor = new ExtractorService(authService)
+        console.log('[Extractor] Starting extraction for orders:', input.orderNumbers)
         const result = await extractor.extract(input)
+        console.log('[Extractor] Extraction completed:', result)
 
         return { success: true, data: result }
       } catch (error) {
         const message = error instanceof Error ? error.message : 'Unknown error'
-        return { success: false, error: message }
+        console.error('[Extractor] Error:', message)
+        console.error('[Extractor] Stack:', error instanceof Error ? error.stack : 'N/A')
+        return { success: false, error: `提取失败：${message}` }
       } finally {
         // Clean up: close browser
         if (authService) {
           try {
             await authService.close()
-          } catch {
-            // Ignore cleanup errors
+            console.log('[Extractor] Browser closed')
+          } catch (closeError) {
+            console.warn('[Extractor] Error closing browser:', closeError)
           }
         }
       }
diff --git a/src/renderer/src/pages/ExtractorPage.tsx b/src/renderer/src/pages/ExtractorPage.tsx
index b378671..9d3ddbe 100644
--- a/src/renderer/src/pages/ExtractorPage.tsx
+++ b/src/renderer/src/pages/ExtractorPage.tsx
@@ -124,7 +124,10 @@ export const ExtractorPage: React.FC = () => {
         {error && (
           <div className="error-section">
             <h3>错误</h3>
-            <p>{error}</p>
+            <div className="error-message" title="双击可选中复制">
+              {error}
+            </div>
+            <p className="error-hint">💡 提示：双击错误信息可选中复制</p>
           </div>
         )}
 
@@ -286,9 +289,27 @@ export const ExtractorPage: React.FC = () => {
           margin: 0 0 8px 0;
           font-size: 16px;
         }
-        .error-section p {
-          color: #666;
-          margin: 0;
+        .error-message {
+          background: #fff;
+          padding: 12px;
+          border-radius: 4px;
+          font-family: 'Consolas', 'Monaco', monospace;
+          font-size: 13px;
+          color: #333;
+          border: 1px solid #ffccc7;
+          user-select: text;
+          -webkit-user-select: text;
+          cursor: text;
+          white-space: pre-wrap;
+          word-break: break-all;
+        }
+        .error-message:hover {
+          background: #fffbfc;
+        }
+        .error-hint {
+          color: #999;
+          font-size: 12px;
+          margin: 8px 0 0 0;
         }
         .result-section {
           margin-top: 24px;