diff --git a/.env b/.env
index c759777..922973d 100644
--- a/.env
+++ b/.env
@@ -8,4 +8,7 @@ DATABASE_SYNCHRONIZE=true
 
 # 代理配置（可选）
 PROXY_HOST=127.0.0.1
-PROXY_PORT=3211
\ No newline at end of file
+PROXY_PORT=3211
+
+# 日志级别（可选）：error, warn, info, debug, verbose
+LOG_LEVEL=info
\ No newline at end of file
diff --git a/.env.example b/.env.example
index e514bc9..8116932 100644
--- a/.env.example
+++ b/.env.example
@@ -10,4 +10,7 @@ DATABASE_SYNCHRONIZE=true
 PROXY_HOST=127.0.0.1
 PROXY_PORT=6000
 # PROXY_USERNAME=
-# PROXY_PASSWORD=
\ No newline at end of file
+# PROXY_PASSWORD=
+
+# 日志级别（可选）：error, warn, info, debug, verbose
+LOG_LEVEL=info
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 3c3629e..3613c4c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,7 @@
 node_modules
+dist
+.vscode
+public
+*.xls*
+pw-browsers
+logs
\ No newline at end of file
diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 98fe8c9..38506ae 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -65,22 +65,37 @@
           <el-divider />
           <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;">
             <h3 style="margin: 0;">Today's Bids</h3>
-            <el-select
-              v-model="selectedKeywords"
-              multiple
-              collapse-tags
-              collapse-tags-tooltip
-              placeholder="Filter by Keywords"
-              clearable
-              style="width: 300px;"
-            >
-              <el-option
-                v-for="keyword in keywords"
-                :key="keyword.id"
-                :label="keyword.word"
-                :value="keyword.word"
+            <div style="display: flex; gap: 10px;">
+              <el-date-picker
+                v-model="dateRange"
+                type="daterange"
+                range-separator="To"
+                start-placeholder="Start Date"
+                end-placeholder="End Date"
+                format="YYYY-MM-DD"
+                value-format="YYYY-MM-DD"
+                clearable
+                style="width: 240px;"
               />
-            </el-select>
+              <el-button type="primary" @click="setLast3Days">3天</el-button>
+              <el-button type="primary" @click="setLast7Days">7天</el-button>
+              <el-select
+                v-model="selectedKeywords"
+                multiple
+                collapse-tags
+                collapse-tags-tooltip
+                placeholder="Filter by Keywords"
+                clearable
+                style="width: 300px;"
+              >
+                <el-option
+                  v-for="keyword in keywords"
+                  :key="keyword.id"
+                  :label="keyword.word"
+                  :value="keyword.word"
+                />
+              </el-select>
+            </div>
           </div>
           <el-table :data="filteredTodayBids" v-loading="loading" style="width: 100%">
               <el-table-column prop="title" label="Title">
@@ -173,13 +188,14 @@
 </template>
 
 <script setup lang="ts">
-import { ref, onMounted, reactive, computed, watch } from 'vue'
+import { ref, onMounted, reactive, computed, watch, nextTick } from 'vue'
 import axios from 'axios'
 import { ElMessage } from 'element-plus'
 import { DataBoard, Document, Setting, Refresh } from '@element-plus/icons-vue'
 
 const activeIndex = ref('1')
 const bids = ref<any[]>([])
+const todayBids = ref<any[]>([])
 const highPriorityBids = ref<any[]>([])
 const keywords = ref<any[]>([])
 const loading = ref(false)
@@ -192,6 +208,7 @@ const total = ref(0)
 const sourceOptions = ref<string[]>([])
 const isCrawling = ref(false)
 const selectedKeywords = ref<string[]>([])
+const dateRange = ref<[string, string] | null>(null)
 
 // 从 localStorage 加载保存的关键字
 const loadSavedKeywords = () => {
@@ -210,6 +227,16 @@ watch(selectedKeywords, (newKeywords) => {
   localStorage.setItem('selectedKeywords', JSON.stringify(newKeywords))
 }, { deep: true })
 
+// 监听日期范围变化并显示提示
+watch(dateRange, () => {
+  const totalBids = bids.value.length
+  const filteredCount = filteredTodayBids.value.length
+  
+  if (totalBids > 0 && filteredCount < totalBids) {
+    ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
+  }
+})
+
 const form = reactive({
   word: '',
   weight: 1
@@ -241,24 +268,134 @@ const handleSizeChange = (size: number) => {
   fetchData()
 }
 
+// 设置日期范围为最近3天
+const setLast3Days = () => {
+  const endDate = new Date()
+  const startDate = new Date()
+  startDate.setDate(startDate.getDate() - 2) // 最近3天（包括今天）
+  
+  const formatDateForPicker = (date: Date) => {
+    const year = date.getFullYear()
+    const month = String(date.getMonth() + 1).padStart(2, '0')
+    const day = String(date.getDate()).padStart(2, '0')
+    return `${year}-${month}-${day}`
+  }
+  
+  dateRange.value = [formatDateForPicker(startDate), formatDateForPicker(endDate)]
+  
+  console.log('setLast3Days called, todayBids:', todayBids.value.length, 'dateRange:', dateRange.value)
+  
+  // 直接计算筛选结果并显示提示
+  const start = new Date(startDate)
+  start.setHours(0, 0, 0, 0)
+  const end = new Date(endDate)
+  end.setHours(23, 59, 59, 999)
+  
+  let result = todayBids.value
+  result = result.filter(bid => {
+    if (!bid.publishDate) return false
+    const bidDate = new Date(bid.publishDate)
+    return bidDate >= start && bidDate <= end
+  })
+  
+  const totalBids = todayBids.value.length
+  const filteredCount = result.length
+  
+  console.log('setLast3Days result, totalBids:', totalBids, 'filteredCount:', filteredCount)
+  if (totalBids > 0) {
+    ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
+  } else {
+    ElMessage.warning('暂无数据，请先抓取数据')
+  }
+}
+
+// 设置日期范围为最近7天
+const setLast7Days = () => {
+  const endDate = new Date()
+  const startDate = new Date()
+  startDate.setDate(startDate.getDate() - 6) // 最近7天（包括今天）
+  
+  const formatDateForPicker = (date: Date) => {
+    const year = date.getFullYear()
+    const month = String(date.getMonth() + 1).padStart(2, '0')
+    const day = String(date.getDate()).padStart(2, '0')
+    return `${year}-${month}-${day}`
+  }
+  
+  dateRange.value = [formatDateForPicker(startDate), formatDateForPicker(endDate)]
+  
+  console.log('setLast7Days called, todayBids:', todayBids.value.length, 'dateRange:', dateRange.value)
+  
+  // 直接计算筛选结果并显示提示
+  const start = new Date(startDate)
+  start.setHours(0, 0, 0, 0)
+  const end = new Date(endDate)
+  end.setHours(23, 59, 59, 999)
+  
+  let result = todayBids.value
+  result = result.filter(bid => {
+    if (!bid.publishDate) return false
+    const bidDate = new Date(bid.publishDate)
+    return bidDate >= start && bidDate <= end
+  })
+  
+  const totalBids = todayBids.value.length
+  const filteredCount = result.length
+  
+  console.log('setLast7Days result, totalBids:', totalBids, 'filteredCount:', filteredCount)
+  if (totalBids > 0) {
+    ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
+  } else {
+    ElMessage.warning('暂无数据，请先抓取数据')
+  }
+}
+
 const formatDate = (dateString: string) => {
   if (!dateString) return '-'
   return new Date(dateString).toLocaleDateString()
 }
 
-// 过滤 Today's Bids，只显示包含所选关键字的项目
+// 过滤 Today's Bids，只显示包含所选关键字的项目，并且在日期范围内
 const filteredTodayBids = computed(() => {
-  if (selectedKeywords.value.length === 0) {
-    return bids.value
+  let result = todayBids.value
+  
+  // 按关键字筛选
+  if (selectedKeywords.value.length > 0) {
+    result = result.filter(bid => {
+      return selectedKeywords.value.some(keyword =>
+        bid.title.toLowerCase().includes(keyword.toLowerCase())
+      )
+    })
   }
   
-  return bids.value.filter(bid => {
-    return selectedKeywords.value.some(keyword =>
-      bid.title.toLowerCase().includes(keyword.toLowerCase())
-    )
-  })
+  // 按日期范围筛选
+  if (dateRange.value && dateRange.value.length === 2) {
+    const [startDate, endDate] = dateRange.value
+    result = result.filter(bid => {
+      if (!bid.publishDate) return false
+      const bidDate = new Date(bid.publishDate)
+      const start = new Date(startDate)
+      const end = new Date(endDate)
+      // 设置时间为当天的开始和结束
+      start.setHours(0, 0, 0, 0)
+      end.setHours(23, 59, 59, 999)
+      return bidDate >= start && bidDate <= end
+    })
+  }
+  
+  return result
 })
 
+// 监听筛选结果变化并显示提示
+watch(filteredTodayBids, (newFilteredBids) => {
+  const totalBids = todayBids.value.length
+  const filteredCount = newFilteredBids.length
+  
+  if (totalBids > 0 && filteredCount < totalBids) {
+    ElMessage.info(`筛选结果：共 ${filteredCount} 条数据（总共 ${totalBids} 条）`)
+  }
+}, { deep: true })
+
 const fetchData = async () => {
   loading.value = true
   try {
@@ -281,6 +418,15 @@ const fetchData = async () => {
     keywords.value = kwRes.data
     sourceOptions.value = sourcesRes.data
     isCrawling.value = statusRes.data.isCrawling
+    
+    // 过滤今天的数据用于 Today's Bids
+    const today = new Date()
+    today.setHours(0, 0, 0, 0)
+    todayBids.value = bidsRes.data.items.filter((bid: any) => {
+      if (!bid.publishDate) return false
+      const bidDate = new Date(bid.publishDate)
+      return bidDate >= today
+    })
   } catch (error) {
     ElMessage.error('Failed to fetch data')
   } finally {
diff --git a/package.json b/package.json
index ee81c08..467a9b3 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,8 @@
     "test:watch": "jest --watch",
     "test:cov": "jest --coverage",
     "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
-    "test:e2e": "jest --config ./test/jest-e2e.json"
+    "test:e2e": "jest --config ./test/jest-e2e.json",
+    "crawl": "ts-node -r tsconfig-paths/register src/scripts/crawl.ts"
   },
   "dependencies": {
     "@nestjs/common": "^11.0.1",
@@ -32,9 +33,13 @@
     "class-validator": "^0.14.3",
     "mysql2": "^3.16.0",
     "puppeteer": "^24.34.0",
+    "puppeteer-extra": "^3.3.6",
+    "puppeteer-extra-plugin-stealth": "^2.11.2",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1",
-    "typeorm": "^0.3.28"
+    "typeorm": "^0.3.28",
+    "winston": "^3.19.0",
+    "winston-daily-rotate-file": "^5.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.2.0",
diff --git a/src/app.module.ts b/src/app.module.ts
index b274485..a5cb2de 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -8,6 +8,7 @@ import { BidsModule } from './bids/bids.module';
 import { KeywordsModule } from './keywords/keywords.module';
 import { CrawlerModule } from './crawler/crawler.module';
 import { TasksModule } from './schedule/schedule.module';
+import { LoggerModule } from './common/logger/logger.module';
 
 @Module({
   imports: [
@@ -17,6 +18,7 @@ import { TasksModule } from './schedule/schedule.module';
       rootPath: join(__dirname, '..', 'frontend', 'dist'),
       exclude: ['/api*'],
     }),
+    LoggerModule,
     DatabaseModule,
     BidsModule,
     KeywordsModule,
diff --git a/src/common/logger/logger.module.ts b/src/common/logger/logger.module.ts
new file mode 100644
index 0000000..ab3238c
--- /dev/null
+++ b/src/common/logger/logger.module.ts
@@ -0,0 +1,9 @@
+import { Module, Global } from '@nestjs/common';
+import { CustomLogger } from './logger.service';
+
+@Global()
+@Module({
+  providers: [CustomLogger],
+  exports: [CustomLogger],
+})
+export class LoggerModule {}
diff --git a/src/common/logger/logger.service.ts b/src/common/logger/logger.service.ts
new file mode 100644
index 0000000..dbc339b
--- /dev/null
+++ b/src/common/logger/logger.service.ts
@@ -0,0 +1,31 @@
+import { Injectable, LoggerService, Scope } from '@nestjs/common';
+import { winstonLogger } from './winston.config';
+
+@Injectable({ scope: Scope.TRANSIENT })
+export class CustomLogger implements LoggerService {
+  private context?: string;
+
+  setContext(context: string) {
+    this.context = context;
+  }
+
+  log(message: any, context?: string) {
+    winstonLogger.info(message, { context: context || this.context });
+  }
+
+  error(message: any, trace?: string, context?: string) {
+    winstonLogger.error(message, { context: context || this.context, trace });
+  }
+
+  warn(message: any, context?: string) {
+    winstonLogger.warn(message, { context: context || this.context });
+  }
+
+  debug(message: any, context?: string) {
+    winstonLogger.debug(message, { context: context || this.context });
+  }
+
+  verbose(message: any, context?: string) {
+    winstonLogger.verbose(message, { context: context || this.context });
+  }
+}
diff --git a/src/common/logger/winston.config.ts b/src/common/logger/winston.config.ts
new file mode 100644
index 0000000..fc7bf72
--- /dev/null
+++ b/src/common/logger/winston.config.ts
@@ -0,0 +1,64 @@
+import * as winston from 'winston';
+import DailyRotateFile from 'winston-daily-rotate-file';
+import * as path from 'path';
+
+const logDir = path.join(process.cwd(), 'logs');
+
+// 日志格式
+const logFormat = winston.format.combine(
+  winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
+  winston.format.errors({ stack: true }),
+  winston.format.splat(),
+  winston.format.printf(({ timestamp, level, message, context, stack }) => {
+    let log = `${timestamp} [${level}]`;
+    if (context) {
+      log += ` [${context}]`;
+    }
+    log += ` ${message}`;
+    if (stack) {
+      log += `\n${stack}`;
+    }
+    return log;
+  }),
+);
+
+// 控制台传输
+const consoleTransport = new winston.transports.Console({
+  format: winston.format.combine(
+    winston.format.colorize(),
+    logFormat,
+  ),
+});
+
+// 应用日志传输（按天轮转）
+const appLogTransport = new DailyRotateFile({
+  dirname: logDir,
+  filename: 'application-%DATE%.log',
+  datePattern: 'YYYY-MM-DD',
+  maxSize: '20m',
+  maxFiles: '30d',
+  format: logFormat,
+});
+
+// 错误日志传输（按天轮转）
+const errorLogTransport = new DailyRotateFile({
+  dirname: logDir,
+  filename: 'error-%DATE%.log',
+  datePattern: 'YYYY-MM-DD',
+  level: 'error',
+  maxSize: '20m',
+  maxFiles: '30d',
+  format: logFormat,
+});
+
+// 创建 winston logger 实例
+export const winstonLogger = winston.createLogger({
+  level: process.env.LOG_LEVEL || 'info',
+  format: logFormat,
+  transports: [
+    consoleTransport,
+    appLogTransport,
+    errorLogTransport,
+  ],
+  exitOnError: false,
+});
diff --git a/src/crawler/services/bid-crawler.service.ts b/src/crawler/services/bid-crawler.service.ts
index 44026f7..c5c1787 100644
--- a/src/crawler/services/bid-crawler.service.ts
+++ b/src/crawler/services/bid-crawler.service.ts
@@ -25,10 +25,13 @@ export class BidCrawlerService {
   async crawlAll() {
     this.logger.log('Starting crawl task with Puppeteer...');
     
-    // 设置最大执行时间为1小时
-    const maxExecutionTime = 60 * 60 * 1000; // 1小时（毫秒）
+    // 设置最大执行时间为3小时
+    const maxExecutionTime = 3 * 60 * 60 * 1000; // 3小时（毫秒）
     const startTime = Date.now();
     
+    // 统计结果
+    const crawlResults: Record<string, { success: number; error?: string }> = {};
+    
     // 从环境变量读取代理配置
     const proxyHost = this.configService.get<string>('PROXY_HOST');
     const proxyPort = this.configService.get<string>('PROXY_PORT');
@@ -68,7 +71,7 @@ export class BidCrawlerService {
         // 检查是否超时
         const elapsedTime = Date.now() - startTime;
         if (elapsedTime > maxExecutionTime) {
-          this.logger.warn(`⚠️ Crawl task exceeded maximum execution time of 1 hour. Stopping...`);
+          this.logger.warn(`⚠️ Crawl task exceeded maximum execution time of 3 hours. Stopping...`);
           this.logger.warn(`⚠️ Total elapsed time: ${Math.floor(elapsedTime / 1000 / 60)} minutes`);
           break;
         }
@@ -76,18 +79,23 @@ export class BidCrawlerService {
         try {
           const results = await crawler.crawl(browser);
           this.logger.log(`Extracted ${results.length} items from ${crawler.name}`);
+          
+          // 记录成功数量
+          crawlResults[crawler.name] = { success: results.length };
 
           for (const item of results) {
             await this.bidsService.createOrUpdate({
               title: item.title,
               url: item.url,
               publishDate: item.publishDate,
-              source: crawler.name, 
-              unit: '', 
+              source: crawler.name,
+              unit: '',
             });
           }
         } catch (err) {
           this.logger.error(`Error crawling ${crawler.name}: ${err.message}`);
+          // 记录错误信息
+          crawlResults[crawler.name] = { success: 0, error: err.message };
         }
       }
     } catch (error) {
@@ -100,8 +108,31 @@ export class BidCrawlerService {
       this.logger.log(`Crawl task finished. Total time: ${minutes} minutes`);
       
       if (totalTime > maxExecutionTime) {
-        this.logger.warn(`⚠️ Crawl task exceeded maximum execution time of 1 hour.`);
+        this.logger.warn(`⚠️ Crawl task exceeded maximum execution time of 3 hours.`);
       }
+      
+      // 输出统计总结
+      this.logger.log('='.repeat(50));
+      this.logger.log('爬虫执行总结 / Crawl Summary');
+      this.logger.log('='.repeat(50));
+      
+      let totalSuccess = 0;
+      let errorCount = 0;
+      
+      for (const [source, result] of Object.entries(crawlResults)) {
+        if (result.error) {
+          this.logger.error(`❌ ${source}: 出错 - ${result.error}`);
+          errorCount++;
+        } else {
+          this.logger.log(`✅ ${source}: 成功获取 ${result.success} 条工程信息`);
+          totalSuccess += result.success;
+        }
+      }
+      
+      this.logger.log('='.repeat(50));
+      this.logger.log(`总计: ${totalSuccess} 条工程信息, ${errorCount} 个来源出错`);
+      this.logger.log(`Total: ${totalSuccess} items, ${errorCount} sources failed`);
+      this.logger.log('='.repeat(50));
     }
   }
 }
diff --git a/src/crawler/services/chng_target_playwright.spec.ts b/src/crawler/services/chng_target_playwright.spec.ts
deleted file mode 100644
index 949bf2c..0000000
--- a/src/crawler/services/chng_target_playwright.spec.ts
+++ /dev/null
@@ -1,72 +0,0 @@
-import { chromium } from 'playwright';
-import { ChngCrawler } from './chng_target';
-
-jest.setTimeout(120000);
-
-describe('ChngCrawler Playwright Test', () => {
-  let browser;
-
-  beforeAll(async () => {
-    browser = await chromium.launch({
-      headless: false,
-      args: ['--no-sandbox', '--disable-setuid-sandbox']
-    });
-  });
-
-  afterAll(async () => {
-    if (browser) {
-      await browser.close();
-    }
-  });
-
-  it('should visit the website and list all found bid information', async () => {
-    console.log(`
-Starting crawl for: ${ChngCrawler.name}`);
-    console.log(`Target URL: ${ChngCrawler.url}`);
-    
-    const context = await browser.newContext({
-      viewport: { width: 1920, height: 1080 },
-      userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
-    });
-
-    const page = await context.newPage();
-    
-    // Add stealth scripts if needed, but Playwright is often better at evasion
-    await page.addInitScript(() => {
-      Object.defineProperty(navigator, 'webdriver', { get: () => false });
-    });
-
-    await page.goto(ChngCrawler.url, { waitUntil: 'networkidle', timeout: 60000 });
-    
-    // Wait for content
-    try {
-        await page.waitForSelector('.ant-table-row', { timeout: 30000 });
-    } catch (e) {
-        console.warn('Timed out waiting for .ant-table-row');
-    }
-
-    const content = await page.content();
-    
-    // Reuse the extraction logic from the Crawler definition
-    const results = ChngCrawler.extract(content);
-    
-    console.log(`
-Successfully found ${results.length} items:
-`);
-    console.log('----------------------------------------');
-    results.forEach((item, index) => {
-      console.log(`${index + 1}. [${item.publishDate.toLocaleDateString()}] ${item.title}`);
-      console.log(`   Link: ${item.url}`);
-      console.log('----------------------------------------');
-    });
-
-    if (results.length === 0) {
-        console.warn('No items found. Debugging content length: ' + content.length);
-        if (content.length < 500) {
-            console.log('Content dump:', content);
-        }
-    }
-
-    expect(Array.isArray(results)).toBeTruthy();
-  });
-});
diff --git a/src/crawler/services/chng_target_stealth.spec.ts b/src/crawler/services/chng_target_stealth.spec.ts
new file mode 100644
index 0000000..5e1bce5
--- /dev/null
+++ b/src/crawler/services/chng_target_stealth.spec.ts
@@ -0,0 +1,134 @@
+import { ChngCrawler } from './chng_target';
+import puppeteer from 'puppeteer-extra';
+import StealthPlugin from 'puppeteer-extra-plugin-stealth';
+import type { Browser, Page } from 'puppeteer';
+
+// 使用 stealth 插件增强反爬虫能力
+puppeteer.use(StealthPlugin());
+
+// Increase timeout to 180 seconds for slow sites and stealth mode
+jest.setTimeout(180000);
+
+// 模拟人类鼠标移动
+async function simulateHumanMouseMovement(page: Page) {
+  const viewport = page.viewport();
+  if (!viewport) return;
+
+  const movements = 5 + Math.floor(Math.random() * 5); // 5-10次随机移动
+
+  for (let i = 0; i < movements; i++) {
+    const x = Math.floor(Math.random() * viewport.width);
+    const y = Math.floor(Math.random() * viewport.height);
+    
+    await page.mouse.move(x, y, {
+      steps: 10 + Math.floor(Math.random() * 20) // 10-30步，使移动更平滑
+    });
+    
+    // 随机停顿 100-500ms
+    await new Promise(r => setTimeout(r, 100 + Math.random() * 400));
+  }
+}
+
+// 模拟人类滚动
+async function simulateHumanScrolling(page: Page) {
+  const scrollCount = 3 + Math.floor(Math.random() * 5); // 3-7次滚动
+
+  for (let i = 0; i < scrollCount; i++) {
+    const scrollDistance = 100 + Math.floor(Math.random() * 400); // 100-500px
+    
+    await page.evaluate((distance) => {
+      window.scrollBy({
+        top: distance,
+        behavior: 'smooth'
+      });
+    }, scrollDistance);
+
+    // 随机停顿 500-1500ms
+    await new Promise(r => setTimeout(r, 500 + Math.random() * 1000));
+  }
+
+  // 滚动回顶部
+  await page.evaluate(() => {
+    window.scrollTo({ top: 0, behavior: 'smooth' });
+  });
+  await new Promise(r => setTimeout(r, 1000));
+}
+
+describe('ChngCrawler Stealth Test (Headless Mode with Stealth Plugin)', () => {
+  let browser: Browser;
+
+  beforeAll(async () => {
+    browser = await puppeteer.launch({
+      headless: true, // 使用 headless 模式
+      args: [
+        '--no-sandbox',
+        '--disable-setuid-sandbox',
+        '--disable-blink-features=AutomationControlled',
+        '--window-size=1920,1080',
+        '--disable-infobars',
+        '--disable-dev-shm-usage',
+        '--disable-accelerated-2d-canvas',
+        '--no-first-run',
+        '--no-zygote',
+        '--disable-gpu',
+        '--disable-features=VizDisplayCompositor',
+        '--disable-webgl',
+      ],
+      defaultViewport: null
+    });
+  });
+
+  afterAll(async () => {
+    if (browser) {
+      await browser.close();
+    }
+  });
+
+  it('should visit the website and list all found bid information with stealth plugin', async () => {
+    // 为此测试单独设置更长的超时时间
+    jest.setTimeout(180000);
+    console.log(`
+Starting crawl for: ${ChngCrawler.name}`);
+    console.log(`Target URL: ${ChngCrawler.url}`);
+    console.log('Using puppeteer-extra-plugin-stealth for anti-detection');
+    console.log('Running in headless mode');
+    
+    // 创建一个临时页面用于模拟人类行为
+    const tempPage = await browser.newPage();
+    await tempPage.setViewport({ width: 1920, height: 1080, deviceScaleFactor: 1 });
+    
+    // 模拟人类鼠标移动
+    console.log('Simulating human mouse movements...');
+    await simulateHumanMouseMovement(tempPage);
+    
+    // 模拟人类滚动
+    console.log('Simulating human scrolling...');
+    await simulateHumanScrolling(tempPage);
+    
+    await tempPage.close();
+    
+    const results = await ChngCrawler.crawl(browser);
+    
+    console.log(`
+Successfully found ${results.length} items:
+`);
+    console.log('----------------------------------------');
+    results.forEach((item, index) => {
+      console.log(`${index + 1}. [${item.publishDate.toLocaleDateString()}] ${item.title}`);
+      console.log(`   Link: ${item.url}`);
+      console.log('----------------------------------------');
+    });
+
+    expect(results).toBeDefined();
+    expect(Array.isArray(results)).toBeTruthy();
+    
+    if (results.length === 0) {
+      console.warn('Warning: No items found. The site might have detected the crawler or content is not loading properly.');
+    } else {
+       const firstItem = results[0];
+       expect(firstItem.title).toBeTruthy();
+       expect(firstItem.url).toMatch(/^https?:\/\//);
+       expect(firstItem.publishDate).toBeInstanceOf(Date);
+    }
+  });
+});
diff --git a/src/keywords/keywords.service.ts b/src/keywords/keywords.service.ts
index ffee72d..61d91d7 100644
--- a/src/keywords/keywords.service.ts
+++ b/src/keywords/keywords.service.ts
@@ -1,26 +1,15 @@
-import { Injectable, OnModuleInit } from '@nestjs/common';
+import { Injectable } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
 import { Repository } from 'typeorm';
 import { Keyword } from './keyword.entity';
 
 @Injectable()
-export class KeywordsService implements OnModuleInit {
+export class KeywordsService {
   constructor(
     @InjectRepository(Keyword)
     private keywordRepository: Repository<Keyword>,
   ) {}
 
-  async onModuleInit() {
-    // 初始预设关键词
-    const defaultKeywords = ["山东", "海", "建设", "工程", "采购"];
-    for (const word of defaultKeywords) {
-      const exists = await this.keywordRepository.findOne({ where: { word } });
-      if (!exists) {
-        await this.keywordRepository.save({ word, weight: 1 });
-      }
-    }
-  }
-
   findAll() {
     return this.keywordRepository.find();
   }
diff --git a/src/scripts/crawl.ts b/src/scripts/crawl.ts
new file mode 100644
index 0000000..a72862e
--- /dev/null
+++ b/src/scripts/crawl.ts
@@ -0,0 +1,25 @@
+import { NestFactory } from '@nestjs/core';
+import { AppModule } from '../app.module';
+import { BidCrawlerService } from '../crawler/services/bid-crawler.service';
+import { Logger } from '@nestjs/common';
+
+async function runCrawler() {
+  const logger = new Logger('CrawlScript');
+  
+  try {
+    const app = await NestFactory.createApplicationContext(AppModule);
+    const crawlerService = app.get(BidCrawlerService);
+    
+    logger.log('Starting crawler...');
+    await crawlerService.crawlAll();
+    logger.log('Crawler completed successfully');
+    
+    await app.close();
+    process.exit(0);
+  } catch (error) {
+    logger.error('Crawler failed:', error);
+    process.exit(1);
+  }
+}
+
+runCrawler();