diff --git a/lib/global.js b/lib/global.js
index 860d37f1..5032f2cb 100644
--- a/lib/global.js
+++ b/lib/global.js
@@ -1,5 +1,5 @@
 import lang from './lang'
-import { useContext, createContext, useState, useEffect } from 'react'
+import { useContext, createContext, useState } from 'react'
 import Router from 'next/router'
 import { initDarkMode } from './theme'
 const GlobalContext = createContext()
diff --git a/lib/theme.js b/lib/theme.js
index ba888dba..701554a8 100644
--- a/lib/theme.js
+++ b/lib/theme.js
@@ -1,4 +1,5 @@
 import cookie from 'react-cookies'
+import BLOG from '@/blog.config'
 
 /**
  * 初始化主题
@@ -23,10 +24,16 @@ export const initDarkMode = (isDarkMode, updateDarkMode) => {
  * @returns {*}
  */
 export function isPreferDark () {
-  // 系统深色模式或时间是夜间时，强行置为夜间模式
-  const date = new Date()
-  const prefersDarkMode = window.matchMedia('(prefers-color-scheme: dark)').matches
-  return prefersDarkMode || (date.getHours() >= 18 || date.getHours() < 6)
+  if (BLOG.APPEARANCE === 'dark') {
+    return true
+  }
+  if (BLOG.APPEARANCE === 'auto') {
+    // 系统深色模式或时间是夜间时，强行置为夜间模式
+    const date = new Date()
+    const prefersDarkMode = window.matchMedia('(prefers-color-scheme: dark)').matches
+    return prefersDarkMode || (date.getHours() >= 18 || date.getHours() < 6)
+  }
+  return false
 }
 
 /**