diff --git a/.devops/start.sh b/.devops/start.sh
index 5458337..2fe5057 100755
--- a/.devops/start.sh
+++ b/.devops/start.sh
@@ -16,9 +16,20 @@ if ! command -v python3 &> /dev/null; then
     exit 1
 fi
 
-# 检查依赖
-echo "检查 Python 依赖..."
-pip3 list | grep -q PyYAML || pip3 install PyYAML
+# 检查依赖（如果在虚拟环境中，跳过系统级安装）
+if [ -z "$VIRTUAL_ENV" ]; then
+    echo "检查 Python 依赖..."
+    if ! python3 -c "import yaml" 2>/dev/null; then
+        echo "警告: 未找到 PyYAML，尝试安装..."
+        pip3 install --user PyYAML || echo "请手动安装: pip3 install --user PyYAML"
+    fi
+else
+    echo "检测到虚拟环境: $VIRTUAL_ENV"
+    if ! python3 -c "import yaml" 2>/dev/null; then
+        echo "安装 PyYAML..."
+        pip install PyYAML
+    fi
+fi
 
 # 进入项目根目录
 cd "$PROJECT_ROOT"