diff --git a/apps/readest-app/src/app/auth/page.tsx b/apps/readest-app/src/app/auth/page.tsx
index 82f83255..b74f41fd 100644
--- a/apps/readest-app/src/app/auth/page.tsx
+++ b/apps/readest-app/src/app/auth/page.tsx
@@ -67,7 +67,7 @@ export default function AuthPage() {
   const router = useRouter();
   const { login } = useAuth();
   const { envConfig, appService } = useEnv();
-  const { isDarkMode, safeAreaInsets } = useThemeStore();
+  const { isDarkMode, safeAreaInsets, isRoundedWindow } = useThemeStore();
   const { isTrafficLightVisible } = useTrafficLightStore();
   const { settings, setSettings, saveSettings } = useSettingsStore();
   const [port, setPort] = useState<number | null>(null);
@@ -346,8 +346,7 @@ export default function AuthPage() {
       className={clsx(
         'bg-base-100 inset-0 flex select-none flex-col items-center overflow-hidden',
         appService?.isIOSApp ? 'h-[100vh]' : 'h-dvh',
-        appService?.isLinuxApp && 'window-border',
-        appService?.hasRoundedWindow && 'rounded-window',
+        appService?.hasRoundedWindow && isRoundedWindow && 'window-border rounded-window',
       )}
     >
       <div
diff --git a/apps/readest-app/src/app/library/page.tsx b/apps/readest-app/src/app/library/page.tsx
index 06eb592c..d4d5fd41 100644
--- a/apps/readest-app/src/app/library/page.tsx
+++ b/apps/readest-app/src/app/library/page.tsx
@@ -74,7 +74,7 @@ const LibraryPageContent = ({ searchParams }: { searchParams: ReadonlyURLSearchP
   } = useLibraryStore();
   const _ = useTranslation();
   const { selectFiles } = useFileSelector(appService, _);
-  const { safeAreaInsets: insets } = useThemeStore();
+  const { safeAreaInsets: insets, isRoundedWindow } = useThemeStore();
   const { settings, setSettings, saveSettings } = useSettingsStore();
   const [loading, setLoading] = useState(false);
   const isInitiating = useRef(false);
@@ -630,8 +630,7 @@ const LibraryPageContent = ({ searchParams }: { searchParams: ReadonlyURLSearchP
       className={clsx(
         'library-page bg-base-200 text-base-content flex select-none flex-col overflow-hidden',
         appService?.isIOSApp ? 'h-[100vh]' : 'h-dvh',
-        appService?.isLinuxApp && 'window-border',
-        appService?.hasRoundedWindow && 'rounded-window',
+        appService?.hasRoundedWindow && isRoundedWindow && 'window-border rounded-window',
       )}
     >
       <div className='top-0 z-40 w-full'>
diff --git a/apps/readest-app/src/app/reader/components/Reader.tsx b/apps/readest-app/src/app/reader/components/Reader.tsx
index 65dfb80a..ce45ed1b 100644
--- a/apps/readest-app/src/app/reader/components/Reader.tsx
+++ b/apps/readest-app/src/app/reader/components/Reader.tsx
@@ -57,7 +57,8 @@ const Reader: React.FC<{ ids?: string }> = ({ ids }) => {
   const { settings, setSettings } = useSettingsStore();
   const { isSideBarVisible, getIsSideBarVisible, setSideBarVisible } = useSidebarStore();
   const { isNotebookVisible, getIsNotebookVisible, setNotebookVisible } = useNotebookStore();
-  const { isDarkMode, systemUIAlwaysHidden, showSystemUI, dismissSystemUI } = useThemeStore();
+  const { isDarkMode, systemUIAlwaysHidden, isRoundedWindow } = useThemeStore();
+  const { showSystemUI, dismissSystemUI } = useThemeStore();
   const { acquireBackKeyInterception, releaseBackKeyInterception } = useDeviceControlStore();
   const [libraryLoaded, setLibraryLoaded] = useState(false);
   const isInitiating = useRef(false);
@@ -142,8 +143,7 @@ const Reader: React.FC<{ ids?: string }> = ({ ids }) => {
       className={clsx(
         `reader-page bg-base-100 text-base-content select-none overflow-hidden`,
         appService?.isIOSApp ? 'h-[100vh]' : 'h-dvh',
-        appService?.isLinuxApp && 'window-border',
-        appService?.hasRoundedWindow && 'rounded-window',
+        appService?.hasRoundedWindow && isRoundedWindow && 'window-border rounded-window',
       )}
     >
       <Suspense fallback={<div className='h-[100vh]'></div>}>
diff --git a/apps/readest-app/src/app/user/page.tsx b/apps/readest-app/src/app/user/page.tsx
index c6d6f524..a6f7f53d 100644
--- a/apps/readest-app/src/app/user/page.tsx
+++ b/apps/readest-app/src/app/user/page.tsx
@@ -59,7 +59,7 @@ const ProfilePage = () => {
   const { envConfig, appService } = useEnv();
   const { token, user, logout } = useAuth();
   const { settings, setSettings, saveSettings } = useSettingsStore();
-  const { safeAreaInsets } = useThemeStore();
+  const { safeAreaInsets, isRoundedWindow } = useThemeStore();
 
   const [loading, setLoading] = useState(false);
   const [availablePlans, setAvailablePlans] = useState<AvailablePlan[]>([]);
@@ -342,8 +342,7 @@ const ProfilePage = () => {
       className={clsx(
         'bg-base-100 inset-0 select-none overflow-hidden',
         appService?.isIOSApp ? 'h-[100vh]' : 'h-dvh',
-        appService?.isLinuxApp && 'window-border',
-        appService?.hasRoundedWindow && 'rounded-window',
+        appService?.hasRoundedWindow && isRoundedWindow && 'window-border rounded-window',
       )}
     >
       <div
diff --git a/apps/readest-app/src/store/themeStore.ts b/apps/readest-app/src/store/themeStore.ts
index c6760c3c..7556868a 100644
--- a/apps/readest-app/src/store/themeStore.ts
+++ b/apps/readest-app/src/store/themeStore.ts
@@ -2,6 +2,7 @@ import { create } from 'zustand';
 import { AppService } from '@/types/system';
 import { getThemeCode, ThemeCode } from '@/utils/style';
 import { getSystemColorScheme } from '@/utils/bridge';
+import { getCurrentWindow } from '@tauri-apps/api/window';
 import { CustomTheme, Palette, ThemeMode } from '@/styles/themes';
 import { EnvConfigType, isWebAppPlatform } from '@/services/environment';
 import { SystemSettings } from '@/types/settings';
@@ -17,6 +18,7 @@ interface ThemeState {
   statusBarHeight: number;
   systemUIAlwaysHidden: boolean;
   safeAreaInsets: Insets | null;
+  isRoundedWindow: boolean;
   setSystemUIAlwaysHidden: (hidden: boolean) => void;
   setStatusBarHeight: (height: number) => void;
   showSystemUI: () => void;
@@ -68,6 +70,7 @@ export const useThemeStore = create<ThemeState>((set, get) => {
     statusBarHeight: 24,
     systemUIAlwaysHidden: false,
     safeAreaInsets: { top: 0, right: 0, bottom: 0, left: 0 },
+    isRoundedWindow: true,
     showSystemUI: () => set({ systemUIVisible: true }),
     dismissSystemUI: () => set({ systemUIVisible: false }),
     setStatusBarHeight: (height: number) => set({ statusBarHeight: height }),
@@ -136,7 +139,7 @@ export const initSystemThemeListener = (appService: AppService) => {
   if (typeof window === 'undefined' || !appService) return;
 
   const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');
-  const update = async () => {
+  const updateColorTheme = async () => {
     let systemIsDarkMode;
     if (appService.isIOSApp) {
       const res = await getSystemColorScheme();
@@ -147,7 +150,16 @@ export const initSystemThemeListener = (appService: AppService) => {
     useThemeStore.getState().handleSystemThemeChange(systemIsDarkMode);
   };
 
-  mediaQuery?.addEventListener('change', update);
-  document.addEventListener('visibilitychange', update);
-  update();
+  const updateWindowTheme = async () => {
+    if (!appService.hasWindow || !appService.isLinuxApp) return;
+    const currentWindow = getCurrentWindow();
+    const isFullscreen = await currentWindow.isFullscreen();
+    const isMaximized = await currentWindow.isMaximized();
+    useThemeStore.setState({ isRoundedWindow: !isMaximized && !isFullscreen });
+  };
+
+  mediaQuery?.addEventListener('change', updateColorTheme);
+  document.addEventListener('visibilitychange', updateColorTheme);
+  window.addEventListener('resize', updateWindowTheme);
+  updateColorTheme();
 };
diff --git a/apps/readest-app/src/utils/window.ts b/apps/readest-app/src/utils/window.ts
index 0c6bfc20..34e2d7f9 100644
--- a/apps/readest-app/src/utils/window.ts
+++ b/apps/readest-app/src/utils/window.ts
@@ -1,6 +1,7 @@
 import { getCurrentWindow } from '@tauri-apps/api/window';
 import { emitTo, TauriEvent } from '@tauri-apps/api/event';
 import { exit } from '@tauri-apps/plugin-process';
+import { type as osType } from '@tauri-apps/plugin-os';
 import { eventDispatcher } from './event';
 
 export const tauriGetWindowLogicalPosition = async () => {
@@ -14,6 +15,20 @@ export const tauriHandleMinimize = async () => {
   getCurrentWindow().minimize();
 };
 
+// workaround to reset transparent background when toggling fullscreen/maximize
+const linuxWindowRestoreTransparentBg = async () => {
+  const currentSize = await getCurrentWindow().innerSize();
+  currentSize.width -= 1;
+  currentSize.height -= 1;
+  await getCurrentWindow().setSize(currentSize);
+  setTimeout(async () => {
+    const currentSize = await getCurrentWindow().innerSize();
+    currentSize.width += 1;
+    currentSize.height += 1;
+    await getCurrentWindow().setSize(currentSize);
+  }, 100);
+};
+
 export const tauriHandleToggleMaximize = async () => {
   const currentWindow = getCurrentWindow();
   const isFullscreen = await currentWindow.isFullscreen();
@@ -21,7 +36,10 @@ export const tauriHandleToggleMaximize = async () => {
     await currentWindow.setFullscreen(false);
     await currentWindow.unmaximize();
   } else {
-    getCurrentWindow().toggleMaximize();
+    await currentWindow.toggleMaximize();
+  }
+  if ((await osType()) === 'linux') {
+    linuxWindowRestoreTransparentBg();
   }
 };
 
@@ -51,6 +69,9 @@ export const tauriHandleToggleFullScreen = async () => {
   } else {
     await currentWindow.setFullscreen(!isFullscreen);
   }
+  if ((await osType()) === 'linux') {
+    linuxWindowRestoreTransparentBg();
+  }
 };
 
 export const tauriHandleSetAlwaysOnTop = async (isAlwaysOnTop: boolean) => {