diff --git a/src/App.tsx b/src/App.tsx
index 2bdc76c..65914ed 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -6,6 +6,7 @@ import { Route, BrowserRouter as Router, Routes } from "react-router-dom"
 import ErrorBoundary from "./components/ErrorBoundary"
 import Footer from "./components/Footer"
 import Header, { RefreshToast } from "./components/Header"
+import { useBackground } from "./hooks/use-background"
 import { useTheme } from "./hooks/use-theme"
 import { InjectContext } from "./lib/inject"
 import { fetchSetting } from "./lib/nezha-api"
@@ -25,6 +26,7 @@ const App: React.FC = () => {
   const { i18n } = useTranslation()
   const { setTheme } = useTheme()
   const [isCustomCodeInjected, setIsCustomCodeInjected] = useState(false)
+  const { backgroundImage: customBackgroundImage } = useBackground()
 
   // 检测是否强制指定了主题颜色
   const forceTheme =
@@ -60,10 +62,6 @@ const App: React.FC = () => {
     i18n.changeLanguage(settingData?.data?.config?.language)
   }
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
-
   const customMobileBackgroundImage =
     // @ts-expect-error CustomMobileBackgroundImage is a global variable
     (window.CustomMobileBackgroundImage as string) !== "" ? window.CustomMobileBackgroundImage : undefined
diff --git a/src/components/CycleTransferStatsClient.tsx b/src/components/CycleTransferStatsClient.tsx
index ebae6bb..85419ca 100644
--- a/src/components/CycleTransferStatsClient.tsx
+++ b/src/components/CycleTransferStatsClient.tsx
@@ -22,9 +22,7 @@ interface CycleTransferStatsClientProps {
 
 export const CycleTransferStatsClient: React.FC<CycleTransferStatsClientProps> = ({ name, from, to, max, serverStats, className }) => {
   const { t } = useTranslation()
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
   return (
     <div
       className={cn(
diff --git a/src/components/GlobalMap.tsx b/src/components/GlobalMap.tsx
index c1d12c3..ae9f2c1 100644
--- a/src/components/GlobalMap.tsx
+++ b/src/components/GlobalMap.tsx
@@ -13,9 +13,7 @@ export default function GlobalMap({ serverList, now }: { serverList: NezhaServer
   const countryList: string[] = []
   const serverCounts: { [key: string]: number } = {}
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   serverList.forEach((server) => {
     if (server.country_code) {
diff --git a/src/components/GroupSwitch.tsx b/src/components/GroupSwitch.tsx
index 0298634..960c95f 100644
--- a/src/components/GroupSwitch.tsx
+++ b/src/components/GroupSwitch.tsx
@@ -11,9 +11,7 @@ export default function GroupSwitch({
   currentTab: string
   setCurrentTab: (tab: string) => void
 }) {
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const scrollRef = useRef<HTMLDivElement>(null)
   const tagRefs = useRef(tabs.map(() => createRef<HTMLDivElement>()))
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
index 4af0483..e40524f 100644
--- a/src/components/Header.tsx
+++ b/src/components/Header.tsx
@@ -1,11 +1,13 @@
 import { ModeToggle } from "@/components/ThemeSwitcher"
 import { Separator } from "@/components/ui/separator"
 import { Skeleton } from "@/components/ui/skeleton"
+import { useBackground } from "@/hooks/use-background"
 import { useWebSocketContext } from "@/hooks/use-websocket-context"
 import { fetchLoginUser, fetchSetting } from "@/lib/nezha-api"
 import { cn } from "@/lib/utils"
 import { useQuery } from "@tanstack/react-query"
 import { AnimatePresence, m } from "framer-motion"
+import { ImageMinus } from "lucide-react"
 import { DateTime } from "luxon"
 import { useEffect, useRef, useState } from "react"
 import { useTranslation } from "react-i18next"
@@ -18,6 +20,7 @@ import { Button } from "./ui/button"
 function Header() {
   const { t } = useTranslation()
   const navigate = useNavigate()
+  const { backgroundImage, updateBackground } = useBackground()
 
   const { data: settingData, isLoading } = useQuery({
     queryKey: ["setting"],
@@ -38,10 +41,6 @@ function Header() {
   // @ts-expect-error CustomDesc is a global variable
   const customDesc = window.CustomDesc || t("nezha")
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
-
   useEffect(() => {
     const link = document.querySelector("link[rel*='icon']") || document.createElement("link")
     // @ts-expect-error set link.type
@@ -57,6 +56,22 @@ function Header() {
     document.title = siteName || "哪吒监控 Nezha Monitoring"
   }, [siteName])
 
+  const handleBackgroundToggle = () => {
+    if (window.CustomBackgroundImage) {
+      // Store the current background image before removing it
+      sessionStorage.setItem("savedBackgroundImage", window.CustomBackgroundImage)
+      updateBackground(undefined)
+    } else {
+      // Restore the saved background image
+      const savedImage = sessionStorage.getItem("savedBackgroundImage")
+      if (savedImage) {
+        updateBackground(savedImage)
+      }
+    }
+  }
+
+  const customBackgroundImage = backgroundImage
+
   return (
     <div className="mx-auto w-full max-w-5xl">
       <section className="flex items-center justify-between header-top">
@@ -87,6 +102,18 @@ function Header() {
           </div>
           <LanguageSwitcher />
           <ModeToggle />
+          {(customBackgroundImage || sessionStorage.getItem("savedBackgroundImage")) && (
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={handleBackgroundToggle}
+              className={cn("rounded-full px-[9px] bg-white dark:bg-black", {
+                "bg-white/70 dark:bg-black/70": customBackgroundImage,
+              })}
+            >
+              <ImageMinus className="w-4 h-4" />
+            </Button>
+          )}
           <Button
             variant="outline"
             size="sm"
@@ -234,32 +261,23 @@ function DashboardLink() {
   )
 }
 
-// https://github.com/streamich/react-use/blob/master/src/useInterval.ts
-const useInterval = (callback: () => void, delay: number | null) => {
-  const savedCallback = useRef<() => void>(() => {})
-  useEffect(() => {
-    savedCallback.current = callback
-  })
-  useEffect(() => {
-    if (delay !== null) {
-      const interval = setInterval(() => savedCallback.current(), delay || 0)
-      return () => clearInterval(interval)
-    }
-    return undefined
-  }, [delay])
-}
 function Overview() {
   const { t } = useTranslation()
   const [mouted, setMounted] = useState(false)
   useEffect(() => {
     setMounted(true)
   }, [])
-  const timeOption = DateTime.TIME_SIMPLE
+  const timeOption = DateTime.TIME_WITH_SECONDS
   timeOption.hour12 = true
   const [timeString, setTimeString] = useState(DateTime.now().setLocale("en-US").toLocaleString(timeOption))
-  useInterval(() => {
-    setTimeString(DateTime.now().setLocale("en-US").toLocaleString(timeOption))
-  }, 1000)
+  useEffect(() => {
+    const updateTime = () => {
+      const now = DateTime.now().setLocale("en-US").toLocaleString(timeOption)
+      setTimeString(now)
+      requestAnimationFrame(updateTime)
+    }
+    requestAnimationFrame(updateTime)
+  }, [])
   return (
     <section className={"mt-10 flex flex-col md:mt-16 header-timer"}>
       <p className="text-base font-semibold">👋 {t("overview")}</p>
diff --git a/src/components/LanguageSwitcher.tsx b/src/components/LanguageSwitcher.tsx
index a6bc7db..36ac680 100644
--- a/src/components/LanguageSwitcher.tsx
+++ b/src/components/LanguageSwitcher.tsx
@@ -9,9 +9,7 @@ import { useTranslation } from "react-i18next"
 export function LanguageSwitcher() {
   const { t, i18n } = useTranslation()
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const locale = i18n.languages[0]
 
diff --git a/src/components/NetworkChart.tsx b/src/components/NetworkChart.tsx
index c89de45..d6fba05 100644
--- a/src/components/NetworkChart.tsx
+++ b/src/components/NetworkChart.tsx
@@ -93,9 +93,7 @@ export const NetworkChartClient = React.memo(function NetworkChart({
 
   const defaultChart = "All"
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const [activeChart, setActiveChart] = React.useState(defaultChart)
   const [isPeakEnabled, setIsPeakEnabled] = React.useState(false)
diff --git a/src/components/ServerCard.tsx b/src/components/ServerCard.tsx
index e88699f..4a8c961 100644
--- a/src/components/ServerCard.tsx
+++ b/src/components/ServerCard.tsx
@@ -27,9 +27,7 @@ export default function ServerCard({ now, serverInfo }: { now: number; serverInf
 
   const showFlag = true
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   // @ts-expect-error ShowNetTransfer is a global variable
   const showNetTransfer = window.ShowNetTransfer as boolean
diff --git a/src/components/ServerCardInline.tsx b/src/components/ServerCardInline.tsx
index 68d1c99..6b8cd5b 100644
--- a/src/components/ServerCardInline.tsx
+++ b/src/components/ServerCardInline.tsx
@@ -27,9 +27,7 @@ export default function ServerCardInline({ now, serverInfo }: { now: number; ser
 
   const showFlag = true
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const parsedData = parsePublicNote(public_note)
 
diff --git a/src/components/ServerDetailChart.tsx b/src/components/ServerDetailChart.tsx
index 8cfb115..c72515b 100644
--- a/src/components/ServerDetailChart.tsx
+++ b/src/components/ServerDetailChart.tsx
@@ -128,9 +128,7 @@ function GpuChart({
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   // 初始化历史数据
   useEffect(() => {
@@ -237,9 +235,7 @@ function CpuChart({ now, data, messageHistory }: { now: number; data: NezhaServe
 
   const { cpu } = formatNezhaInfo(now, data)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   // 初始化历史数据
   useEffect(() => {
@@ -343,9 +339,7 @@ function ProcessChart({ now, data, messageHistory }: { now: number; data: NezhaS
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const { process } = formatNezhaInfo(now, data)
 
@@ -457,9 +451,7 @@ function MemChart({ now, data, messageHistory }: { now: number; data: NezhaServe
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const { mem, swap } = formatNezhaInfo(now, data)
 
@@ -602,9 +594,7 @@ function DiskChart({ now, data, messageHistory }: { now: number; data: NezhaServ
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const { disk } = formatNezhaInfo(now, data)
 
@@ -715,9 +705,7 @@ function NetworkChart({ now, data, messageHistory }: { now: number; data: NezhaS
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const { up, down } = formatNezhaInfo(now, data)
 
@@ -858,9 +846,7 @@ function ConnectChart({ now, data, messageHistory }: { now: number; data: NezhaS
   const hasInitialized = useRef(false)
   const [historyLoaded, setHistoryLoaded] = useState(false)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const { tcp, udp } = formatNezhaInfo(now, data)
 
diff --git a/src/components/ServerDetailOverview.tsx b/src/components/ServerDetailOverview.tsx
index 9b58b1e..b1ccc85 100644
--- a/src/components/ServerDetailOverview.tsx
+++ b/src/components/ServerDetailOverview.tsx
@@ -75,9 +75,7 @@ export default function ServerDetailOverview({ server_id }: { server_id: string
     last_active_time_string,
   } = formatNezhaInfo(nezhaWsData.now, server)
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   countries.registerLocale(enLocale)
 
diff --git a/src/components/ServerOverview.tsx b/src/components/ServerOverview.tsx
index 5d5edb3..86d3987 100644
--- a/src/components/ServerOverview.tsx
+++ b/src/components/ServerOverview.tsx
@@ -25,9 +25,7 @@ export default function ServerOverview({ online, offline, total, up, down, upSpe
   // @ts-expect-error CustomIllustration is a global variable
   const customIllustration = window.CustomIllustration || "/animated-man.webp"
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   return (
     <>
diff --git a/src/components/ServiceTrackerClient.tsx b/src/components/ServiceTrackerClient.tsx
index 96c502e..dfc5376 100644
--- a/src/components/ServiceTrackerClient.tsx
+++ b/src/components/ServiceTrackerClient.tsx
@@ -17,9 +17,7 @@ interface ServiceTrackerProps {
 
 export const ServiceTrackerClient: React.FC<ServiceTrackerProps> = ({ days, className, title, uptime = 100, avgDelay = 0 }) => {
   const { t } = useTranslation()
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
   return (
     <div
       className={cn(
diff --git a/src/components/TabSwitch.tsx b/src/components/TabSwitch.tsx
index b5b1d63..c6c9613 100644
--- a/src/components/TabSwitch.tsx
+++ b/src/components/TabSwitch.tsx
@@ -4,9 +4,7 @@ import { useTranslation } from "react-i18next"
 
 export default function TabSwitch({ tabs, currentTab, setCurrentTab }: { tabs: string[]; currentTab: string; setCurrentTab: (tab: string) => void }) {
   const { t } = useTranslation()
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
   return (
     <div className="z-50 flex flex-col items-start rounded-[50px] server-info-tab">
       <div
diff --git a/src/components/ThemeSwitcher.tsx b/src/components/ThemeSwitcher.tsx
index 94f22d8..9dcea33 100644
--- a/src/components/ThemeSwitcher.tsx
+++ b/src/components/ThemeSwitcher.tsx
@@ -12,9 +12,7 @@ export function ModeToggle() {
   const { t } = useTranslation()
   const { setTheme, theme } = useTheme()
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const handleSelect = (e: Event, newTheme: Theme) => {
     e.preventDefault()
diff --git a/src/context/websocket-provider.tsx b/src/context/websocket-provider.tsx
index 948d80e..2e09956 100644
--- a/src/context/websocket-provider.tsx
+++ b/src/context/websocket-provider.tsx
@@ -106,28 +106,15 @@ export const WebSocketProvider: React.FC<WebSocketProviderProps> = ({ url, child
   useEffect(() => {
     connect()
 
-    // 添加页面可见性变化监听
-    const handleVisibilityChange = () => {
-      if (document.hidden) {
-        // 页面隐藏时断开连接
-        cleanup()
-      } else {
-        // 页面可见时重新连接
-        connect()
-      }
-    }
-
     // 添加页面卸载事件监听
     const handleBeforeUnload = () => {
       cleanup()
     }
 
-    document.addEventListener("visibilitychange", handleVisibilityChange)
     window.addEventListener("beforeunload", handleBeforeUnload)
 
     return () => {
       cleanup()
-      document.removeEventListener("visibilitychange", handleVisibilityChange)
       window.removeEventListener("beforeunload", handleBeforeUnload)
     }
   }, [url])
diff --git a/src/hooks/use-background.ts b/src/hooks/use-background.ts
new file mode 100644
index 0000000..487c2bb
--- /dev/null
+++ b/src/hooks/use-background.ts
@@ -0,0 +1,37 @@
+import { useEffect, useState } from "react"
+
+declare global {
+  interface Window {
+    CustomBackgroundImage: string
+  }
+}
+
+const BACKGROUND_CHANGE_EVENT = "backgroundChange"
+
+export function useBackground() {
+  const [backgroundImage, setBackgroundImage] = useState<string | undefined>(() => {
+    // 首先检查 sessionStorage 中是否有保存的背景图
+    const savedImage = sessionStorage.getItem("savedBackgroundImage")
+    // 如果 window.CustomBackgroundImage 为空但有保存的背景图，则恢复它
+    if (!window.CustomBackgroundImage && savedImage) {
+      window.CustomBackgroundImage = savedImage
+    }
+    return window.CustomBackgroundImage || undefined
+  })
+
+  useEffect(() => {
+    const handleBackgroundChange = () => {
+      setBackgroundImage(window.CustomBackgroundImage || undefined)
+    }
+
+    window.addEventListener(BACKGROUND_CHANGE_EVENT, handleBackgroundChange)
+    return () => window.removeEventListener(BACKGROUND_CHANGE_EVENT, handleBackgroundChange)
+  }, [])
+
+  const updateBackground = (newBackground: string | undefined) => {
+    window.CustomBackgroundImage = newBackground || ""
+    window.dispatchEvent(new Event(BACKGROUND_CHANGE_EVENT))
+  }
+
+  return { backgroundImage, updateBackground }
+}
diff --git a/src/pages/Server.tsx b/src/pages/Server.tsx
index 15060b9..7a95628 100644
--- a/src/pages/Server.tsx
+++ b/src/pages/Server.tsx
@@ -36,9 +36,7 @@ export default function Servers() {
   const [settingsOpen, setSettingsOpen] = useState<boolean>(false)
   const [currentGroup, setCurrentGroup] = useState<string>("All")
 
-  const customBackgroundImage =
-    // @ts-expect-error CustomBackgroundImage is a global variable
-    (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
+  const customBackgroundImage = (window.CustomBackgroundImage as string) !== "" ? window.CustomBackgroundImage : undefined
 
   const restoreScrollPosition = () => {
     const savedPosition = sessionStorage.getItem("scrollPosition")