diff --git a/auto-update.sh b/auto-update.sh
index debbd32..cfd13a4 100755
--- a/auto-update.sh
+++ b/auto-update.sh
@@ -8,6 +8,9 @@ set -e
 LOG_FILE="/var/log/pit-router-update.log"
 REPO_DIR="/www/wwwroot/pit-router"
 BACKUP_DIR="/www/wwwroot/pit-router-backups"
+HEALTH_PORT=9000
+HEALTH_RETRIES=10
+HEALTH_INTERVAL=10
 
 # 日志函数
 log() {
@@ -19,12 +22,18 @@ backup() {
     if [ -d "$REPO_DIR" ]; then
         mkdir -p "$BACKUP_DIR"
         BACKUP_NAME="pit-router-$(date '+%Y%m%d-%H%M%S').tar.gz"
-        tar -czf "$BACKUP_DIR/$BACKUP_NAME" -C "$(dirname $REPO_DIR)" "$(basename $REPO_DIR)" 2>/dev/null || true
+        # 只备份关键配置，不备份 venv
+        tar -czf "$BACKUP_DIR/$BACKUP_NAME" \
+            --exclude='venv' \
+            --exclude='__pycache__' \
+            --exclude='*.pyc' \
+            --exclude='.git' \
+            -C "$(dirname $REPO_DIR)" "$(basename $REPO_DIR)" 2>/dev/null || true
         log "备份创建: $BACKUP_NAME"
         
-        # 只保留最近 5 个备份
+        # 只保留最近 3 个备份
         cd "$BACKUP_DIR"
-        ls -t | tail -n +6 | xargs rm -f 2>/dev/null || true
+        ls -t | tail -n +4 | xargs rm -f 2>/dev/null || true
         cd "$REPO_DIR"
     fi
 }
@@ -34,16 +43,38 @@ rollback() {
     log "⚠️ 开始回滚..."
     LATEST_BACKUP=$(ls -t "$BACKUP_DIR" | head -1)
     if [ -n "$LATEST_BACKUP" ]; then
+        # 先停止当前容器
+        docker-compose down 2>/dev/null || true
+        
+        # 解压备份（只恢复配置文件）
         cd "$BACKUP_DIR"
-        tar -xzf "$LATEST_BACKUP" -C "$(dirname $REPO_DIR)"
+        tar -xzf "$LATEST_BACKUP" -C "$(dirname $REPO_DIR)" --overwrite 2>/dev/null || true
         cd "$REPO_DIR"
-        docker-compose -f docker-compose.prod.yaml up -d
+        
+        # 重新构建并启动
+        docker-compose build --no-cache 2>&1 | tail -3
+        docker-compose up -d
+        
         log "✅ 回滚完成"
     else
         log "❌ 没有可用的备份"
     fi
 }
 
+# 健康检查
+health_check() {
+    local count=0
+    while [ $count -lt $HEALTH_RETRIES ]; do
+        if curl -sf http://localhost:$HEALTH_PORT/health > /dev/null 2>&1; then
+            return 0
+        fi
+        count=$((count + 1))
+        log "健康检查重试 $count/$HEALTH_RETRIES..."
+        sleep $HEALTH_INTERVAL
+    done
+    return 1
+}
+
 # 主流程
 main() {
     log "========== 🚀 开始自动更新 =========="
@@ -65,42 +96,32 @@ main() {
     
     # 3. 停止旧容器
     log "🛑 停止旧容器..."
-    docker-compose -f docker-compose.prod.yaml down 2>/dev/null || true
+    docker-compose down 2>/dev/null || true
     
     # 4. 构建新镜像
     log "🔨 构建新镜像..."
-    docker-compose -f docker-compose.prod.yaml build --no-cache 2>&1 | tail -5
+    docker-compose build --no-cache 2>&1 | tail -5
     
     # 5. 启动新容器
     log "🚀 启动新容器..."
-    docker-compose -f docker-compose.prod.yaml up -d
+    docker-compose up -d
     
-    # 6. 等待健康检查
+    # 6. 等待服务启动
     log "⏳ 等待服务启动..."
-    sleep 15
+    sleep 30
     
     # 7. 健康检查
     log "🏥 健康检查..."
-    MAX_RETRIES=5
-    RETRY_COUNT=0
-    
-    while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do
-        if curl -sf http://localhost:1999/health > /dev/null 2>&1; then
-            log "✅ 更新成功！服务运行正常"
-            log "========== 🎉 更新完成 =========="
-            exit 0
-        fi
-        
-        RETRY_COUNT=$((RETRY_COUNT + 1))
-        log "重试 $RETRY_COUNT/$MAX_RETRIES..."
-        sleep 5
-    done
-    
-    # 健康检查失败，回滚
-    log "❌ 健康检查失败！"
-    rollback
-    log "========== ⚠️ 更新失败，已回滚 =========="
-    exit 1
+    if health_check; then
+        log "✅ 更新成功！服务运行正常"
+        log "========== 🎉 更新完成 =========="
+        exit 0
+    else
+        log "❌ 健康检查失败！"
+        rollback
+        log "========== ⚠️ 更新失败，已回滚 =========="
+        exit 1
+    fi
 }
 
 # 执行