diff --git a/_config.yml b/_config.yml
index d577529..2b2a28d 100644
--- a/_config.yml
+++ b/_config.yml
@@ -157,11 +157,10 @@ katex:
   allpost: true
   copy_tex: false
 
-# mermaid 三个选项缺一不可
+# mermaid流程图 三个选项缺一不可(https://mermaid-js.github.io/mermaid/)
 mermaid:
-  enable: true
-  version: 8.5.2
-  cdn: https://cdn.bootcdn.net/ajax/libs/mermaid
+  enable: false
+  cdn: https://cdn.jsdelivr.net/npm/mermaid@8.9.2/dist/mermaid.min.js
   theme: forest
 
 # 网站成立年份(默认为 2019，若填入年份小于当前年份，则显示为 2018-2019 类似的格式)
@@ -235,7 +234,7 @@ twikoo:
 minivaline:
   enable: false
   md: true
-  # 更多选项 https://minivaline.js.org/docs/cn/#/Options 按照yml格式继续填写即可 （除了 [el] 选项）  
+  # 更多选项 https://minivaline.js.org/docs/cn/#/Options 按照yml格式继续填写即可 （除了 [el] 选项）
   # emoticonUrl 等列表选项 可参考 https://github.com/MiniValine/hexo-next-minivaline
   # 下面是一个例子：
   backend: waline
@@ -253,4 +252,4 @@ ads:
     title: 云服务器全球购低至2折
     img: https://cdn.jsdelivr.net/gh/Shen-Yu/cdn/img/ten_2.jpg
     url: https://curl.qcloud.com/kvO7hb43
-    width: 300
\ No newline at end of file
+    width: 300
diff --git a/layout/_partial/after-footer.ejs b/layout/_partial/after-footer.ejs
index bce1e30..34f275d 100644
--- a/layout/_partial/after-footer.ejs
+++ b/layout/_partial/after-footer.ejs
@@ -1,75 +1,57 @@
-<%- js('/js/jquery-2.0.3.min') %>
-<%- js('/js/lazyload.min') %>
+<%- js('/js/jquery-2.0.3.min') %> <%- js('/js/lazyload.min') %>
 <!-- Tocbot -->
-<% if (theme.toc && is_post() && !page.no_toc){ %>
-<%- js('/js/tocbot.min') %>
+<% if (theme.toc && is_post() && !page.no_toc){ %> <%- js('/js/tocbot.min') %>
 <script>
   tocbot.init({
-    tocSelector: '.tocbot',
-    contentSelector: '.article-entry',
-    headingSelector: 'h1, h2, h3, h4, h5, h6',
+    tocSelector: ".tocbot",
+    contentSelector: ".article-entry",
+    headingSelector: "h1, h2, h3, h4, h5, h6",
     hasInnerContainers: true,
     scrollSmooth: true,
-    scrollContainer: 'main',
-    positionFixedSelector: '.tocbot',
-    positionFixedClass: 'is-position-fixed',
-    fixedSidebarOffset: 'auto'
+    scrollContainer: "main",
+    positionFixedSelector: ".tocbot",
+    positionFixedClass: "is-position-fixed",
+    fixedSidebarOffset: "auto",
   });
 </script>
 <% } %>
 <script src="https://cdn.jsdelivr.net/npm/jquery-modal@0.9.2/jquery.modal.min.js"></script>
-<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/jquery-modal@0.9.2/jquery.modal.min.css">
+<link
+  rel="stylesheet"
+  href="https://cdn.jsdelivr.net/npm/jquery-modal@0.9.2/jquery.modal.min.css"
+/>
 <script src="https://cdn.jsdelivr.net/npm/justifiedGallery@3.7.0/dist/js/jquery.justifiedGallery.min.js"></script>
 <%- js('dist/main') %>
 <!-- ImageViewer -->
-<% if (theme.image_viewer){ %>
-<%- partial('viewer') %>
-<% } %>
+<% if (theme.image_viewer){ %> <%- partial('viewer') %> <% } %>
 <!-- MathJax -->
-<% if (theme.mathjax){ %>
-<%- partial('mathjax') %>
+<% if (theme.mathjax){ %> <%- partial('mathjax') %>
 <script>
   var ayerConfig = {
-    mathjax: true
-  }
+    mathjax: true,
+  };
 </script>
 <% } %>
 <!-- Katex -->
-<% if (theme.katex.enable){ %>
-<%- partial('katex') %>
-<% } %>
+<% if (theme.katex.enable){ %> <%- partial('katex') %> <% } %>
 <!-- busuanzi  -->
-<% if (theme.busuanzi && theme.busuanzi.enable){ %>
-<%- js('/js/busuanzi-2.3.pure.min') %>
-<% } %>
+<% if (theme.busuanzi && theme.busuanzi.enable){ %> <%-
+js('/js/busuanzi-2.3.pure.min') %> <% } %>
 <!-- ClickLove -->
-<% if (theme.click_effect===1){ %>
-<%- js('/js/clickLove') %>
-<% } %>
+<% if (theme.click_effect===1){ %> <%- js('/js/clickLove') %> <% } %>
 <!-- ClickBoom1 -->
 <% if (theme.click_effect===2){ %>
 <script src="https://cdn.jsdelivr.net/npm/animejs@latest/anime.min.js"></script>
-<%- js('/js/clickBoom1') %>
-<% } %>
+<%- js('/js/clickBoom1') %> <% } %>
 <!-- ClickBoom2 -->
-<% if (theme.click_effect===3){ %>
-<%- js('/js/clickBoom2') %>
-<% } %>
+<% if (theme.click_effect===3){ %> <%- js('/js/clickBoom2') %> <% } %>
 <!-- CodeCopy -->
-<% if (theme.copy_btn == true) { %>
-<%- css('/css/clipboard') %>
-<%- partial('post/clipboard') %>
-<% } %>
+<% if (theme.copy_btn == true) { %> <%- css('/css/clipboard') %> <%-
+partial('post/clipboard') %> <% } %>
 <!-- CanvasBackground -->
-<% if (theme.canvas_bg == 1) { %>
-<%- js('/js/dz') %>
-<% } %>
-<!-- mermaid -->
-<% if (theme.mermaid.enable) { %>
-  <script src='<%= theme.mermaid.cdn %>/<%= theme.mermaid.version %>/mermaid.min.js'></script>
-  <script>
-    if (window.mermaid) {
-      mermaid.initialize({theme: '<%= theme.mermaid.theme %>'});
-    }
-  </script>
-<% } %>
\ No newline at end of file
+<% if (theme.canvas_bg == 1) { %> <%- js('/js/dz') %> <% } %>
+<script>
+  if (window.mermaid) {
+    mermaid.initialize({ theme: "<%= theme.mermaid.theme %>" });
+  }
+</script>
diff --git a/layout/_partial/head.ejs b/layout/_partial/head.ejs
index 54e92cb..905ebd9 100644
--- a/layout/_partial/head.ejs
+++ b/layout/_partial/head.ejs
@@ -2,40 +2,48 @@
 
 <% if (config.language){ %>
 <html lang="<%= config.language %>">
-<% } else { %>
-<html lang="en">
-<% }%>
+  <% } else { %>
+  <html lang="en">
+    <% }%>
 
-<head>
-  <meta charset="utf-8" />
-  <% var title = page.title; if (is_archive()) { title = __('archive_a'); if
-    (is_month()) { title += ': ' + page.year + '/' + page.month; } else if
-    (is_year()) { title += ': ' + page.year; } } else if (is_category()) { title
-    = page.category; } else if (is_tag()) {
-    title = __('tag') + ': ' + page.tag; } %> <% if (page.keywords){ %>
-  <meta name="keywords" content="<%= page.keywords %>,<%= config.keywords %>" />
-  <% } else if (config.keywords){ %>
-  <meta name="keywords" content="<%= config.keywords %>" />
-  <% } %> <% if (page.description){ %>
-  <meta name="description" content="<%= page.description %>" />
-  <% } else if (config.description){ %>
-  <meta name="description" content="<%= config.description %>" />
-  <% } %>
-  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
-  <title>
-    <% if (title){ %><%= title %> | <% } %> <%= config.title %>
-  </title>
-  <% if (theme.favicon){ %>
-  <link rel="shortcut icon" href="<%- theme.favicon %>" />
-  <% } %>
-  <%- css('dist/main') %>
-  <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/Shen-Yu/cdn/css/remixicon.min.css">
-  <%- css('css/custom') %>
-  <% if (theme.progressBar){ %>
-  <script src="https://cdn.jsdelivr.net/npm/pace-js@1.0.2/pace.min.js"></script>
-  <% } %>
-  <%- partial('google-analytics') %>
-  <%- partial('baidu-analytics') %>
-</head>
-
-</html>
\ No newline at end of file
+    <head>
+      <meta charset="utf-8" />
+      <% var title = page.title; if (is_archive()) { title = __('archive_a'); if
+      (is_month()) { title += ': ' + page.year + '/' + page.month; } else if
+      (is_year()) { title += ': ' + page.year; } } else if (is_category()) {
+      title = page.category; } else if (is_tag()) { title = __('tag') + ': ' +
+      page.tag; } %> <% if (page.keywords){ %>
+      <meta
+        name="keywords"
+        content="<%= page.keywords %>,<%= config.keywords %>"
+      />
+      <% } else if (config.keywords){ %>
+      <meta name="keywords" content="<%= config.keywords %>" />
+      <% } %> <% if (page.description){ %>
+      <meta name="description" content="<%= page.description %>" />
+      <% } else if (config.description){ %>
+      <meta name="description" content="<%= config.description %>" />
+      <% } %>
+      <meta
+        name="viewport"
+        content="width=device-width, initial-scale=1, maximum-scale=1"
+      />
+      <title><% if (title){ %><%= title %> | <% } %> <%= config.title %></title>
+      <% if (theme.favicon){ %>
+      <link rel="shortcut icon" href="<%- theme.favicon %>" />
+      <% } %> <%- css('dist/main') %>
+      <link
+        rel="stylesheet"
+        href="https://cdn.jsdelivr.net/gh/Shen-Yu/cdn/css/remixicon.min.css"
+      />
+      <%- css('css/custom') %> <% if (theme.progressBar){ %>
+      <script src="https://cdn.jsdelivr.net/npm/pace-js@1.0.2/pace.min.js"></script>
+      <% } %> <%- partial('google-analytics') %> <%- partial('baidu-analytics')
+      %>
+      <!-- mermaid -->
+      <% if (theme.mermaid.enable) { %>
+      <script src="<%= theme.mermaid.cdn %>"></script>
+      <% } %>
+    </head>
+  </html>
+</html>