diff --git a/src/pages/cluster-management/components/add-worker-step.tsx b/src/pages/cluster-management/components/add-worker-step.tsx
index e09049f5..b6abd1c4 100644
--- a/src/pages/cluster-management/components/add-worker-step.tsx
+++ b/src/pages/cluster-management/components/add-worker-step.tsx
@@ -28,7 +28,7 @@ const Line = styled.div`
     width: 16px;
     height: 16px;
     transform: rotate(45deg);
-    background-color: var(--ant-color-bg-container);
+    background-color: var(--ant-color-bg-elevated);
     border-top: 1px solid var(--ant-color-border);
     border-left: 1px solid var(--ant-color-border);
   }
diff --git a/src/pages/resources/config/index.ts b/src/pages/resources/config/index.ts
index e5c04dec..f84b7041 100644
--- a/src/pages/resources/config/index.ts
+++ b/src/pages/resources/config/index.ts
@@ -69,7 +69,8 @@ export const addWorkerGuide: Record<string, any> = {
     },
     checkEnvCommand: {
       [ProviderValueMap.Docker]: `nvidia-smi >/dev/null 2>&1 && echo "NVIDIA driver OK" || (echo "NVIDIA driver issue"; exit 1) && docker info 2>/dev/null | grep -q "Default Runtime: nvidia" && echo "NVIDIA Container Toolkit OK" || (echo "NVIDIA Container Toolkit not configured"; exit 1)`,
-      [ProviderValueMap.Kubernetes]: 'k8s env check command'
+      [ProviderValueMap.Kubernetes]:
+        'kubectl get runtimeclass nvidia > /dev/null 2>&1  && echo "NVIDIA runtimeclass registered" || (echo "NVIDIA runtimeclass issue"; exit 1)'
     }
   },
   npu: {