diff --git a/src/client/components/global/a.vue b/src/client/components/global/a.vue
index 7ad62a731..d2544ecbe 100644
--- a/src/client/components/global/a.vue
+++ b/src/client/components/global/a.vue
@@ -9,7 +9,7 @@ import { defineComponent } from 'vue';
 import { faExpandAlt, faColumns, faExternalLinkAlt, faLink, faWindowMaximize } from '@fortawesome/free-solid-svg-icons';
 import * as os from '@client/os';
 import copyToClipboard from '@client/scripts/copy-to-clipboard';
-import { router } from '@client/router';
+import { router, setNavigationInfo } from '@client/router';
 import { url } from '@client/config';
 import { popout } from '@client/scripts/popout';
 import { ColdDeviceStorage } from '@client/store';
@@ -130,6 +130,10 @@ export default defineComponent({
 				if (this.$router.currentRoute.value.path === this.to) {
 					window.scroll({ top: 0, behavior: 'smooth' });
 				} else {
+					setNavigationInfo({
+						from: this.$router.currentRoute.value.path,
+						to: this.to
+					});
 					this.$router.push(this.to);
 				}
 			}
diff --git a/src/client/router.ts b/src/client/router.ts
index bf45c806e..bdb7755d5 100644
--- a/src/client/router.ts
+++ b/src/client/router.ts
@@ -1,4 +1,4 @@
-import { defineAsyncComponent, markRaw } from 'vue';
+import { defineAsyncComponent, markRaw, ref } from 'vue';
 import { createRouter, createWebHistory } from 'vue-router';
 import MkLoading from '@client/pages/_loading_.vue';
 import MkError from '@client/pages/_error_.vue';
@@ -13,6 +13,16 @@ const page = (path: string) => defineAsyncComponent({
 
 let indexScrollPos = 0;
 
+export const navigationInfo = ref(null);
+export function setNavigationInfo(info) {
+	navigationInfo.value = info;
+}
+
+window.addEventListener('popstate', (event) => {
+	console.log('popstate');
+	navigationInfo.value = null;
+});
+
 export const router = createRouter({
 	history: createWebHistory(),
 	routes: [
@@ -91,7 +101,7 @@ export const router = createRouter({
 	// 通常の使い方をすると scroll メソッドの behavior を設定できないため、自前で window.scroll するようにする
 	scrollBehavior(to) {
 		window._scroll = () => { // さらにHacky
-			if (to.name === 'index') {
+			if (location.pathname === '/') {
 				window.scroll({ top: indexScrollPos, behavior: 'instant' });
 				const i = setInterval(() => {
 					window.scroll({ top: indexScrollPos, behavior: 'instant' });
@@ -106,11 +116,11 @@ export const router = createRouter({
 	}
 });
 
-router.afterEach((to, from) => {
-	if (from.name === 'index') {
+export function saveScrollPosition() {
+	if (navigationInfo.value?.from === '/') {
 		indexScrollPos = window.scrollY;
 	}
-});
+}
 
 export function resolve(path: string) {
 	const resolved = router.resolve(path);
diff --git a/src/client/style.scss b/src/client/style.scss
index eadf56bf3..0ba8d8b9b 100644
--- a/src/client/style.scss
+++ b/src/client/style.scss
@@ -322,6 +322,8 @@ hr {
 	box-sizing: border-box;
 	margin: var(--root-margin, 32px) auto;
 	max-width: min(var(--baseContentWidth), calc(100% - (var(--root-margin, 32px) * 2)));
+	background: var(--bg);
+	min-height: 100%;
 
 	@media (max-width: 500px) {
 		--root-margin: 10px;
diff --git a/src/client/ui/default.vue b/src/client/ui/default.vue
index c3dce0f32..ba1378d84 100644
--- a/src/client/ui/default.vue
+++ b/src/client/ui/default.vue
@@ -11,7 +11,7 @@
 			</header>
 			<div class="content" :class="{ _flat_: !fullView }">
 				<router-view v-slot="{ Component }">
-					<transition :name="$store.state.animation ? 'page' : ''" mode="out-in" @enter="onTransition">
+					<transition :name="$store.state.animation && navigationInfo ? 'page' : ''" @before-enter="saveScrollPosition" @enter="onTransition">
 						<keep-alive :include="['timeline']">
 							<component :is="Component" :ref="changePage"/>
 						</keep-alive>
@@ -64,6 +64,7 @@ import XHeader from './_common_/header.vue';
 import * as os from '@client/os';
 import { sidebarDef } from '@client/sidebar';
 import * as symbols from '@client/symbols';
+import { saveScrollPosition, navigationInfo } from '@client/router';
 
 const DESKTOP_THRESHOLD = 1100;
 const MOBILE_THRESHOLD = 600;
@@ -85,6 +86,7 @@ export default defineComponent({
 			isDesktop: window.innerWidth >= DESKTOP_THRESHOLD,
 			widgetsShowing: false,
 			fullView: false,
+			navigationInfo,
 			wallpaper: localStorage.getItem('wallpaper') != null,
 			faLayerGroup, faBars, faBell, faHome, faCircle, faPencilAlt,
 		};
@@ -152,6 +154,10 @@ export default defineComponent({
 			this.$refs.drawerNav.show();
 		},
 
+		saveScrollPosition() {
+			saveScrollPosition();
+		},
+
 		onTransition() {
 			if (window._scroll) window._scroll();
 		},
@@ -215,6 +221,39 @@ export default defineComponent({
 	opacity: 0;
 }
 
+.page-enter-active {
+	position: absolute;
+	top: 0;
+	z-index: 1;
+	width: 100%;
+	opacity: 1;
+	transform: translateX(0);
+	transition: transform 500ms cubic-bezier(0.23, 1, 0.32, 1), opacity 500ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.page-leave-active {
+	opacity: 1;
+	transform: translateX(0);
+	transition: transform 500ms cubic-bezier(0.23, 1, 0.32, 1), opacity 500ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.page-enter-from {
+	//opacity: 0;
+	transform: translateX(128px);
+
+	/* iOSはoverflow: clipをサポートしていない */ 
+	@supports (-webkit-touch-callout: none) {
+		transform: translateX(0);
+	}
+}
+.page-leave-active {
+	opacity: 0;
+	transform: translateX(-64px);
+
+	/* iOSはoverflow: clipをサポートしていない */ 
+	@supports (-webkit-touch-callout: none) {
+		transform: translateX(0);
+	}
+}
+
 .mk-app {
 	$header-height: 50px;
 	$ui-font-size: 1em;
@@ -294,6 +333,7 @@ export default defineComponent({
 			}
 
 			> .content {
+				position: relative;
 				background: var(--bg);
 				--stickyTop: #{$header-height};
 			}