diff --git a/docs/guide/README.md b/docs/guide/README.md
index fb5a9e9..2c54f6b 100644
--- a/docs/guide/README.md
+++ b/docs/guide/README.md
@@ -42,6 +42,7 @@
 | 负载均衡 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |
 | 拦截页面 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |
 | 等级保护 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |
+| 免费证书 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |
 | 机器学习 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C35.0457 44 44 35.0457 44 24C44 12.9543 35.0457 4 24 4C12.9543 4 4 12.9543 4 24C4 35.0457 12.9543 44 24 44Z" fill="#c33" stroke="#c33" stroke-width="4" stroke-linejoin="round"/><path d="M29.6567 18.3432L18.343 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/><path d="M18.3433 18.3432L29.657 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> | <svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg>|
 | 增强规则 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C35.0457 44 44 35.0457 44 24C44 12.9543 35.0457 4 24 4C12.9543 4 4 12.9543 4 24C4 35.0457 12.9543 44 24 44Z" fill="#c33" stroke="#c33" stroke-width="4" stroke-linejoin="round"/><path d="M29.6567 18.3432L18.343 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/><path d="M18.3433 18.3432L29.657 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> | <svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg>|
 | 技术支持 |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C35.0457 44 44 35.0457 44 24C44 12.9543 35.0457 4 24 4C12.9543 4 4 12.9543 4 24C4 35.0457 12.9543 44 24 44Z" fill="#c33" stroke="#c33" stroke-width="4" stroke-linejoin="round"/><path d="M29.6567 18.3432L18.343 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/><path d="M18.3433 18.3432L29.657 29.6569" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> |<svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg> | <svg width="24" height="24" viewBox="0 0 48 48" fill="none"><path d="M24 44C29.5228 44 34.5228 41.7614 38.1421 38.1421C41.7614 34.5228 44 29.5228 44 24C44 18.4772 41.7614 13.4772 38.1421 9.85786C34.5228 6.23858 29.5228 4 24 4C18.4772 4 13.4772 6.23858 9.85786 9.85786C6.23858 13.4772 4 18.4772 4 24C4 29.5228 6.23858 34.5228 9.85786 38.1421C13.4772 41.7614 18.4772 44 24 44Z" fill="#3c3" stroke="#3c3" stroke-width="4" stroke-linejoin="round"/><path d="M16 24L22 30L34 18" stroke="#FFF" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"/></svg>|
@@ -57,6 +58,8 @@
 
 
 
+
+
 ##  :art: 界面预览 <!-- {docsify-ignore} -->
 
 南墙为你提供了简单易用的WAF后台管理界面，安装完成后所有操作都可以在浏览器中完成，所有配置无需重启立即生效，远超市面上大部分免费WAF产品如`ModSecurity`，如下：
diff --git a/docs/guide/install.md b/docs/guide/install.md
index 7e0e8db..c4bcf6f 100644
--- a/docs/guide/install.md
+++ b/docs/guide/install.md
@@ -10,7 +10,7 @@
   - 处理器：64位 1千兆赫(GHz)或更快。
   - 内存：不小于2G
   - 磁盘空间：不小于16G
-  - 系统：RedHat 7及以上相关兼容x86_64系统，如Rocky Linux、AlmaLinux等，其它请使用Docker版。
+  - 系统：CentOS系8及以上兼容x86_64系统，如Rocky Linux、AlmaLinux等，其它请使用Docker版。
   ```