diff --git a/index.html b/index.html
index 890f130..111d761 100644
--- a/index.html
+++ b/index.html
@@ -10,11 +10,7 @@
       content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"
     />
     <title>微信 Markdown 编辑器 | Doocs 开源社区</title>
-    <link rel="shortcut icon" href="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/md/images/favicon.png" />
-    <link
-      rel="apple-touch-icon-precomposed"
-      href="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/md/images/1648303220922-7e14aefa-816e-44c1-8604-ade709ca1c69.png"
-    />
+    <link rel="shortcut icon" href="./assets/favicon.png" />
     <style>
       .loading {
         position: fixed;
@@ -74,17 +70,7 @@
       <strong>Please enable JavaScript to continue.</strong>
     </noscript>
     <div id="app">
-      <div class="loading">
-        <strong>致力于让 Markdown 编辑更简单</strong>
-        <p class="txt">正在加载编辑器</p>
-      </div>
     </div>
-    <script>
-      const theme = localStorage.getItem('vueuse-color-scheme')
-      if (theme === 'dark' || (theme === 'auto' && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
-        document.querySelector('.loading').classList.add('dark')
-      }
-    </script>
     <script>
       MathJax = {
         loader: { load: ['[tex]/ams'] },
@@ -92,8 +78,8 @@
         svg: { fontCache: 'none' },
       }
     </script>
-    <script id="MathJax-script" src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js"></script>
+    <script id="MathJax-script" src="https://i-aws.czl.net/jsdelivr/npm/mathjax@3/es5/tex-svg.js"></script>
     <script type="module" src="/src/main.ts"></script>
   </body>
-  <script src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/wechatsync/article-syncjs@latest/dist/main.js"></script>
+  <script src="./assets/js/js.js"></script>
 </html>
diff --git a/package-lock.json b/package-lock.json
index a63352e..225fdf1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1527,9 +1527,9 @@
       }
     },
     "node_modules/@eslint/plugin-kit": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmmirror.com/@eslint/plugin-kit/-/plugin-kit-0.2.0.tgz",
-      "integrity": "sha512-vH9PiIMMwvhCx31Af3HiGzsVNULDbyVkHXwlemn/B0TFj/00ho3y55efXrUZTfQipxoHC5u4xq6zblww1zm1Ig==",
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/@eslint/plugin-kit/-/plugin-kit-0.2.3.tgz",
+      "integrity": "sha512-2b/g5hRmpbb1o4GnTZax9N9m0FXzz9OV42ZzI4rDDMDuHUqigAiQCEWChBWCY4ztAGVRjoWT19v0yMmc5/L5kA==",
       "dev": true,
       "dependencies": {
         "levn": "^0.4.1"
@@ -4336,9 +4336,9 @@
       }
     },
     "node_modules/cross-spawn": {
-      "version": "7.0.3",
-      "resolved": "https://registry.npmmirror.com/cross-spawn/-/cross-spawn-7.0.3.tgz",
-      "integrity": "sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==",
+      "version": "7.0.6",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
+      "integrity": "sha512-uV2QOWP2nWzsy2aMp8aRibhi9dlzF5Hgh5SHaB9OiTGEyDTiJJyx0uy51QXdyWbtAHNua4XJzUKca3OzKUd3vA==",
       "dependencies": {
         "path-key": "^3.1.0",
         "shebang-command": "^2.0.0",
@@ -5383,9 +5383,9 @@
       }
     },
     "node_modules/elliptic": {
-      "version": "6.5.7",
-      "resolved": "https://registry.npmmirror.com/elliptic/-/elliptic-6.5.7.tgz",
-      "integrity": "sha512-ESVCtTwiA+XhY3wyh24QqRGBoP3rEdDUl3EDUUo9tft074fi19IrdpH7hLCMMP3CIj7jb3W96rn8lt/BqIlt5Q==",
+      "version": "6.6.1",
+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.6.1.tgz",
+      "integrity": "sha512-RaddvvMatK2LJHqFJ+YA4WysVN5Ita9E35botqIYspQ4TkRAlCicdzKOjlyv/1Za5RyTNn7di//eEV0uTAfe3g==",
       "dev": true,
       "dependencies": {
         "bn.js": "^4.11.9",
@@ -9585,9 +9585,9 @@
       "dev": true
     },
     "node_modules/npm-run-all/node_modules/cross-spawn": {
-      "version": "6.0.5",
-      "resolved": "https://registry.npmmirror.com/cross-spawn/-/cross-spawn-6.0.5.tgz",
-      "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+      "version": "6.0.6",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.6.tgz",
+      "integrity": "sha512-VqCUuhcd1iB+dsv8gxPttb5iZh/D0iubSP21g36KXdEuf6I5JiioesUVjpCdHV9MZRUfVFlvwtIUyPfxo5trtw==",
       "dev": true,
       "dependencies": {
         "nice-try": "^1.0.4",
diff --git a/src/components/CodemirrorEditor/EditorHeader/HelpDropdown.vue b/src/components/CodemirrorEditor/EditorHeader/HelpDropdown.vue
deleted file mode 100644
index f61d121..0000000
--- a/src/components/CodemirrorEditor/EditorHeader/HelpDropdown.vue
+++ /dev/null
@@ -1,23 +0,0 @@
-<script setup lang="ts">
-import { ref } from 'vue'
-
-import AboutDialog from './AboutDialog.vue'
-
-const aboutDialogVisible = ref(false)
-</script>
-
-<template>
-  <MenubarMenu>
-    <MenubarTrigger>
-      帮助
-    </MenubarTrigger>
-    <MenubarContent align="start">
-      <MenubarItem @click="aboutDialogVisible = true">
-        <el-icon class="mr-2 h-4 w-4" />
-        <span>关于</span>
-      </MenubarItem>
-    </MenubarContent>
-  </MenubarMenu>
-
-  <AboutDialog :visible="aboutDialogVisible" @close="aboutDialogVisible = false" />
-</template>
diff --git a/src/components/CodemirrorEditor/EditorHeader/index.vue b/src/components/CodemirrorEditor/EditorHeader/index.vue
index 28d106f..9e9f332 100644
--- a/src/components/CodemirrorEditor/EditorHeader/index.vue
+++ b/src/components/CodemirrorEditor/EditorHeader/index.vue
@@ -40,7 +40,6 @@ import { nextTick } from 'vue'
 import EditDropdown from './EditDropdown.vue'
 
 import FileDropdown from './FileDropdown.vue'
-import HelpDropdown from './HelpDropdown.vue'
 
 import PostInfo from './PostInfo.vue'
 import StyleDropdown from './StyleDropdown.vue'
@@ -195,7 +194,6 @@ function customStyle() {
       </MenubarMenu>
       <EditDropdown />
       <StyleDropdown />
-      <HelpDropdown />
     </Menubar>
 
     <Popover>
diff --git a/src/config/theme.ts b/src/config/theme.ts
index 483d683..d57a8e5 100644
--- a/src/config/theme.ts
+++ b/src/config/theme.ts
@@ -24,13 +24,14 @@ const defaultTheme: Theme = {
     // 二级标题
     h2: {
       'display': `table`,
-      'padding': `0 0.2em`,
+      'padding': `0 0.5em`,
       'margin': `4em auto 2em`,
       'color': `#fff`,
       'background': `var(--md-primary-color)`,
       'font-size': `1.2em`,
       'font-weight': `bold`,
       'text-align': `center`,
+      'border-radius': `4px`,
     },
 
     // 三级标题
diff --git a/src/stores/index.ts b/src/stores/index.ts
index f96732c..96290a9 100644
--- a/src/stores/index.ts
+++ b/src/stores/index.ts
@@ -17,7 +17,7 @@ export const useStore = defineStore(`store`, () => {
   const toggleDark = useToggle(isDark)
 
   // 是否开启 Mac 代码块
-  const isMacCodeBlock = useStorage(`isMacCodeBlock`, true)
+  const isMacCodeBlock = useStorage(`isMacCodeBlock`, false)
   const toggleMacCodeBlock = useToggle(isMacCodeBlock)
 
   // 是否在左侧编辑
@@ -25,7 +25,7 @@ export const useStore = defineStore(`store`, () => {
   const toggleEditOnLeft = useToggle(isEditOnLeft)
 
   // 是否开启微信外链接底部引用
-  const isCiteStatus = useStorage(`isCiteStatus`, false)
+  const isCiteStatus = useStorage(`isCiteStatus`, true)
   const toggleCiteStatus = useToggle(isCiteStatus)
 
   // 是否开启段落首行缩进