diff --git a/app/src/main/java/com/hippo/ehviewer/Settings.kt b/app/src/main/java/com/hippo/ehviewer/Settings.kt
index c7915148b..5a190038b 100755
--- a/app/src/main/java/com/hippo/ehviewer/Settings.kt
+++ b/app/src/main/java/com/hippo/ehviewer/Settings.kt
@@ -111,7 +111,7 @@ object Settings {
     private const val KEY_SELECT_SITE = "select_site"
     private const val DEFAULT_SELECT_SITE = true
     private const val DEFAULT_THEME = THEME_SYSTEM
-    private const val DEFAULT_GALLERY_SITE = 1
+    private const val DEFAULT_GALLERY_SITE = 0
     private const val KEY_LAUNCH_PAGE = "launch_page"
     private const val DEFAULT_LAUNCH_PAGE = 0
     private const val DEFAULT_LIST_MODE = 0
diff --git a/app/src/main/java/com/hippo/ehviewer/ui/login/SignInScreen.kt b/app/src/main/java/com/hippo/ehviewer/ui/login/SignInScreen.kt
index e3969930b..30bb9bc00 100644
--- a/app/src/main/java/com/hippo/ehviewer/ui/login/SignInScreen.kt
+++ b/app/src/main/java/com/hippo/ehviewer/ui/login/SignInScreen.kt
@@ -1,5 +1,7 @@
 package com.hippo.ehviewer.ui.login
 
+import android.app.Activity
+import androidx.activity.compose.BackHandler
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -79,6 +81,10 @@ fun SignInScreen() {
     val context = LocalContext.current
     var signInJob by remember { mutableStateOf<Job?>(null) }
 
+    BackHandler {
+        (context as Activity).moveTaskToBack(true)
+    }
+
     // Basic login request
     fun signIn() {
         if (signInJob?.isActive == true) return