diff --git a/doc/source/index.rst b/doc/source/index.rst
index 7ecaf4b..7f9e6c2 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -8,5 +8,7 @@ CCE provides highly scalable, high-performance, enterprise-class Kubernetes clus
 
    .. service_card::
       :service_type: cce
+      :environment: internal
       :umn: Describes the basic concepts, functions, key terms, best practices, FAQs and steps for quickly creating clusters and containerized applications.
-      :api-ref: Describes the APIs provided by CCE including the functions, parameters, and examples of each API.
\ No newline at end of file
+      :api-ref: Describes the APIs provided by CCE including the functions, parameters, and examples of each API.
+      :best-practice: To use Cloud Container Engine more securely, reliably, flexibly, and efficiently, you are advised to follow the following best practices.