Default UI redesign (#7429)

* wip

* wip

* wip

* wip

* Update default.sidebar.vue

* wip

* wip

* wip

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* wip

* Update sticky-sidebar.ts

* wip

* wip

* Update messaging-room.form.vue

* Update timeline.vue

19 files changed, 1485 insertions, 208 deletions

diff --git a/src/client/ui/_common_/header.vue b/src/client/ui/_common_/header.vue
index f150653a84..4c914edbbd 100644
--- a/src/client/ui/_common_/header.vue
+++ b/src/client/ui/_common_/header.vue
@@ -12,14 +12,16 @@
 				<MkUserName v-else-if="info.userName" :user="info.userName" :nowrap="false" class="text"/>
 			</div>
 		</div>
-		<button class="_button action" v-if="info.action" @click.stop="info.action.handler"><Fa :icon="info.action.icon" :key="info.action.icon"/></button>
+		<button class="_button menu" @click.stop="menu"><Fa :icon="faEllipsisH"/></button>
+		<!--<button class="_button action" v-if="info.action" @click.stop="info.action.handler"><Fa :icon="info.action.icon" :key="info.action.icon"/></button>-->
 	</template>
 </div>
 </template>
 
 <script lang="ts">
 import { defineComponent } from 'vue';
-import { faChevronLeft, faCircle } from '@fortawesome/free-solid-svg-icons';
+import { faChevronLeft, faCircle, faShareAlt, faEllipsisH } from '@fortawesome/free-solid-svg-icons';
+import { modalMenu } from '@client/os';
 
 export default defineComponent({
 	props: {
@@ -42,7 +44,7 @@ export default defineComponent({
 		return {
 			canBack: false,
 			height: 0,
-			faChevronLeft, faCircle
+			faChevronLeft, faCircle, faShareAlt, faEllipsisH,
 		};
 	},
 
@@ -66,6 +68,23 @@ export default defineComponent({
 		back() {
 			if (this.canBack) this.$router.back();
 		},
+
+		share() {
+			navigator.share(this.info.share);
+		},
+
+		menu(ev) {
+			const menu = this.info.menu ? this.info.menu() : [];
+			if (this.info.share) {
+				if (menu.length > 0) menu.push(null);
+				menu.push({
+					text: this.$ts.share,
+					icon: faShareAlt,
+					action: this.share
+				});
+			}
+			modalMenu(menu, ev.currentTarget || ev.target);
+		}
 	}
 });
 </script>
@@ -74,59 +93,33 @@ export default defineComponent({
 .fdidabkb {
 	&.center {
 		text-align: center;
-	}
 
-	> .back {
-		height: var(--height);
-		width: var(--height);
+		> .titleContainer {
+			margin: 0 auto;
+		}
 	}
 
-	> .action {
+	> .back,
+	> .menu {
+		position: absolute;
+		z-index: 1;
+		top: 0;
 		height: var(--height);
 		width: var(--height);
 	}
 
-	> .titleContainer {
-		width: calc(100% - (var(--height) * 2));
-
-		> .title {
-			height: var(--height);
-
-			> .avatar {
-				$size: 32px;
-				margin: calc((var(--height) - #{$size}) / 2) 8px calc((var(--height) - #{$size}) / 2) 0;
-				pointer-events: none;
-			}
-		}
-	}
-}
-</style>
-
-<style lang="scss" scoped>
-.fdidabkb {
 	> .back {
-		position: absolute;
-		z-index: 1;
-		top: 0;
 		left: 0;
 	}
 
-	> .action {
-		position: absolute;
-		z-index: 1;
-		top: 0;
+	> .menu {
 		right: 0;
 	}
 
-	&.center {
-		> .titleContainer {
-			margin: 0 auto;
-		}
-	}
-
 	> .titleContainer {
 		overflow: auto;
 		white-space: nowrap;
+		width: calc(100% - (var(--height) * 2));
 
 		> .title {
 			display: inline-block;
@@ -136,16 +129,7 @@ export default defineComponent({
 			text-overflow: ellipsis;
 			padding: 0 16px;
 			position: relative;
-
-			> .indicator {
-				position: absolute;
-				top: initial;
-				right: 8px;
-				top: 8px;
-				color: var(--indicator);
-				font-size: 12px;
-				animation: blink 1s infinite;
-			}
+			height: var(--height);
 
 			> .icon + .text {
 				margin-left: 8px;
@@ -157,6 +141,8 @@ export default defineComponent({
 				width: $size;
 				height: $size;
 				vertical-align: bottom;
+				margin: calc((var(--height) - #{$size}) / 2) 8px calc((var(--height) - #{$size}) / 2) 0;
+				pointer-events: none;
 			}
 		}
 	}
diff --git a/src/client/ui/_common_/sidebar.vue b/src/client/ui/_common_/sidebar.vue
new file mode 100644
index 0000000000..6243d6fcc2
--- /dev/null
+++ b/src/client/ui/_common_/sidebar.vue
@@ -0,0 +1,458 @@
+<template>
+<div class="mvcprjjd">
+	<transition name="nav-back">
+		<div class="nav-back _modalBg"
+			v-if="showing"
+			@click="showing = false"
+			@touchstart.passive="showing = false"
+		></div>
+	</transition>
+
+	<transition name="nav">
+		<nav class="nav" :class="{ iconOnly, hidden }" v-show="showing">
+			<div>
+				<button class="item _button account" @click="openAccountMenu">
+					<MkAvatar :user="$i" class="avatar"/><MkAcct class="text" :user="$i"/>
+				</button>
+				<MkA class="item index" active-class="active" to="/" exact>
+					<Fa :icon="faHome" fixed-width/><span class="text">{{ $ts.timeline }}</span>
+				</MkA>
+				<template v-for="item in menu">
+					<div v-if="item === '-'" class="divider"></div>
+					<component v-else-if="menuDef[item] && (menuDef[item].show !== false)" :is="menuDef[item].to ? 'MkA' : 'button'" class="item _button" :class="item" active-class="active" v-on="menuDef[item].action ? { click: menuDef[item].action } : {}" :to="menuDef[item].to">
+						<Fa :icon="menuDef[item].icon" fixed-width/><span class="text">{{ $ts[menuDef[item].title] }}</span>
+						<i v-if="menuDef[item].indicated"><Fa :icon="faCircle"/></i>
+					</component>
+				</template>
+				<div class="divider"></div>
+				<button class="item _button" :class="{ active: $route.path === '/instance' || $route.path.startsWith('/instance/') }" v-if="$i.isAdmin || $i.isModerator" @click="oepnInstanceMenu">
+					<Fa :icon="faServer" fixed-width/><span class="text">{{ $ts.instance }}</span>
+				</button>
+				<button class="item _button" @click="more">
+					<Fa :icon="faEllipsisH" fixed-width/><span class="text">{{ $ts.more }}</span>
+					<i v-if="otherNavItemIndicated"><Fa :icon="faCircle"/></i>
+				</button>
+				<MkA class="item" active-class="active" to="/settings">
+					<Fa :icon="faCog" fixed-width/><span class="text">{{ $ts.settings }}</span>
+				</MkA>
+				<button class="item _button post" @click="post">
+					<Fa :icon="faPencilAlt" fixed-width/><span class="text">{{ $ts.note }}</span>
+				</button>
+			</div>
+		</nav>
+	</transition>
+</div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+import { faGripVertical, faChevronLeft, faHashtag, faBroadcastTower, faFireAlt, faEllipsisH, faPencilAlt, faBars, faTimes, faSearch, faUserCog, faCog, faUser, faHome, faStar, faCircle, faAt, faListUl, faPlus, faUserClock, faUsers, faTachometerAlt, faExchangeAlt, faGlobe, faChartBar, faCloud, faServer, faInfoCircle, faQuestionCircle, faProjectDiagram, faStream, faExclamationCircle } from '@fortawesome/free-solid-svg-icons';
+import { faBell, faEnvelope, faLaugh, faComments } from '@fortawesome/free-regular-svg-icons';
+import { host } from '@client/config';
+import { search } from '@client/scripts/search';
+import * as os from '@client/os';
+import { sidebarDef } from '@client/sidebar';
+import { getAccounts, addAccount, login } from '@client/account';
+
+export default defineComponent({
+	props: {
+		defaultHidden: {
+			type: Boolean,
+			required: false,
+			default: false,
+		}
+	},
+
+	data() {
+		return {
+			host: host,
+			showing: false,
+			accounts: [],
+			connection: null,
+			menuDef: sidebarDef,
+			iconOnly: false,
+			hidden: this.defaultHidden,
+			faGripVertical, faChevronLeft, faComments, faHashtag, faBroadcastTower, faFireAlt, faEllipsisH, faPencilAlt, faBars, faTimes, faBell, faSearch, faUserCog, faCog, faUser, faHome, faStar, faCircle, faAt, faEnvelope, faListUl, faPlus, faUserClock, faLaugh, faUsers, faTachometerAlt, faExchangeAlt, faGlobe, faChartBar, faCloud, faServer, faProjectDiagram
+		};
+	},
+
+	computed: {
+		menu(): string[] {
+			return this.$store.state.menu;
+		},
+
+		otherNavItemIndicated(): boolean {
+			for (const def in this.menuDef) {
+				if (this.menu.includes(def)) continue;
+				if (this.menuDef[def].indicated) return true;
+			}
+			return false;
+		},
+	},
+
+	watch: {
+		$route(to, from) {
+			this.showing = false;
+		},
+
+		'$store.reactiveState.sidebarDisplay.value'() {
+			this.calcViewState();
+		},
+
+		iconOnly() {
+			this.$nextTick(() => {
+				this.$emit('change-view-mode');
+			});
+		},
+
+		hidden() {
+			this.$nextTick(() => {
+				this.$emit('change-view-mode');
+			});
+		}
+	},
+
+	created() {
+		window.addEventListener('resize', this.calcViewState);
+		this.calcViewState();
+	},
+
+	methods: {
+		calcViewState() {
+			this.iconOnly = (window.innerWidth <= 1279) || (this.$store.state.sidebarDisplay === 'icon');
+			if (!this.defaultHidden) {
+				this.hidden = (window.innerWidth <= 650);
+			}
+		},
+
+		show() {
+			this.showing = true;
+		},
+
+		post() {
+			os.post();
+		},
+
+		search() {
+			search();
+		},
+
+		async openAccountMenu(ev) {
+			const storedAccounts = getAccounts().filter(x => x.id !== this.$i.id);
+			const accountsPromise = os.api('users/show', { userIds: storedAccounts.map(x => x.id) });
+
+			const accountItemPromises = storedAccounts.map(a => new Promise(res => {
+				accountsPromise.then(accounts => {
+					const account = accounts.find(x => x.id === a.id);
+					if (account == null) return res(null);
+					res({
+						type: 'user',
+						user: account,
+						action: () => { this.switchAccount(account); }
+					});
+				});
+			}));
+
+			os.modalMenu([...[{
+				type: 'link',
+				text: this.$ts.profile,
+				to: `/@${ this.$i.username }`,
+				avatar: this.$i,
+			}, null, ...accountItemPromises, {
+				icon: faPlus,
+				text: this.$ts.addAcount,
+				action: () => {
+					os.modalMenu([{
+						text: this.$ts.existingAcount,
+						action: () => { this.addAcount(); },
+					}, {
+						text: this.$ts.createAccount,
+						action: () => { this.createAccount(); },
+					}], ev.currentTarget || ev.target);
+				},
+			}]], ev.currentTarget || ev.target, {
+				align: 'left'
+			});
+		},
+
+		oepnInstanceMenu(ev) {
+			os.modalMenu([{
+				type: 'link',
+				text: this.$ts.dashboard,
+				to: '/instance',
+				icon: faTachometerAlt,
+			}, null, this.$i.isAdmin ? {
+				type: 'link',
+				text: this.$ts.settings,
+				to: '/instance/settings',
+				icon: faCog,
+			} : undefined, {
+				type: 'link',
+				text: this.$ts.customEmojis,
+				to: '/instance/emojis',
+				icon: faLaugh,
+			}, {
+				type: 'link',
+				text: this.$ts.users,
+				to: '/instance/users',
+				icon: faUsers,
+			}, {
+				type: 'link',
+				text: this.$ts.files,
+				to: '/instance/files',
+				icon: faCloud,
+			}, {
+				type: 'link',
+				text: this.$ts.jobQueue,
+				to: '/instance/queue',
+				icon: faExchangeAlt,
+			}, {
+				type: 'link',
+				text: this.$ts.federation,
+				to: '/instance/federation',
+				icon: faGlobe,
+			}, {
+				type: 'link',
+				text: this.$ts.relays,
+				to: '/instance/relays',
+				icon: faProjectDiagram,
+			}, {
+				type: 'link',
+				text: this.$ts.announcements,
+				to: '/instance/announcements',
+				icon: faBroadcastTower,
+			}, {
+				type: 'link',
+				text: this.$ts.abuseReports,
+				to: '/instance/abuses',
+				icon: faExclamationCircle,
+			}, {
+				type: 'link',
+				text: this.$ts.logs,
+				to: '/instance/logs',
+				icon: faStream,
+			}], ev.currentTarget || ev.target);
+		},
+
+		more(ev) {
+			os.popup(import('@client/components/launch-pad.vue'), {}, {
+			}, 'closed');
+		},
+
+		addAcount() {
+			os.popup(import('@client/components/signin-dialog.vue'), {}, {
+				done: res => {
+					addAccount(res.id, res.i);
+					os.success();
+				},
+			}, 'closed');
+		},
+
+		createAccount() {
+			os.popup(import('@client/components/signup-dialog.vue'), {}, {
+				done: res => {
+					addAccount(res.id, res.i);
+					this.switchAccountWithToken(res.i);
+				},
+			}, 'closed');
+		},
+
+		switchAccount(account: any) {
+			const storedAccounts = getAccounts();
+			const token = storedAccounts.find(x => x.id === account.id).token;
+			this.switchAccountWithToken(token);
+		},
+
+		switchAccountWithToken(token: string) {
+			login(token);
+		},
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.nav-enter-active,
+.nav-leave-active {
+	opacity: 1;
+	transform: translateX(0);
+	transition: transform 300ms cubic-bezier(0.23, 1, 0.32, 1), opacity 300ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.nav-enter-from,
+.nav-leave-active {
+	opacity: 0;
+	transform: translateX(-240px);
+}
+
+.nav-back-enter-active,
+.nav-back-leave-active {
+	opacity: 1;
+	transition: opacity 300ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.nav-back-enter-from,
+.nav-back-leave-active {
+	opacity: 0;
+}
+
+.mvcprjjd {
+	$ui-font-size: 1em; // TODO: どこかに集約したい
+	$nav-width: 250px;
+	$nav-icon-only-width: 86px;
+
+	> .nav-back {
+		z-index: 1001;
+	}
+
+	> .nav {
+		$avatar-size: 32px;
+		$avatar-margin: 8px;
+
+		flex: 0 0 $nav-width;
+		width: $nav-width;
+		box-sizing: border-box;
+
+		&.iconOnly {
+			flex: 0 0 $nav-icon-only-width;
+			width: $nav-icon-only-width;
+
+			&:not(.hidden) {
+				> div {
+					width: $nav-icon-only-width;
+
+					> .divider {
+						margin: 8px auto;
+						width: calc(100% - 32px);
+					}
+
+					> .item {
+						padding-left: 0;
+						width: 100%;
+						text-align: center;
+						font-size: $ui-font-size * 1.1;
+						line-height: 3.7rem;
+
+						> [data-icon],
+						> .avatar {
+							margin-right: 0;
+						}
+
+						> i {
+							left: 10px;
+						}
+
+						> .text {
+							display: none;
+						}
+
+						&:first-child {
+							margin-bottom: 8px;
+						}
+
+						&:last-child {
+							margin-top: 8px;
+						}
+					}
+				}
+			}
+		}
+
+		&.hidden {
+			position: fixed;
+			top: 0;
+			left: 0;
+			z-index: 1001;
+		}
+
+		&:not(.hidden) {
+			display: block !important;
+		}
+
+		> div {
+			position: fixed;
+			top: 0;
+			left: 0;
+			z-index: 1001;
+			width: $nav-width;
+			// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
+			height: calc(var(--vh, 1vh) * 100);
+			box-sizing: border-box;
+			overflow: auto;
+			background: var(--navBg);
+
+			> .divider {
+				margin: 16px 0;
+				border-top: solid 0.5px var(--divider);
+			}
+
+			> .item {
+				position: relative;
+				display: block;
+				padding-left: 24px;
+				font-size: $ui-font-size;
+				line-height: 3rem;
+				text-overflow: ellipsis;
+				overflow: hidden;
+				white-space: nowrap;
+				width: 100%;
+				text-align: left;
+				box-sizing: border-box;
+				color: var(--navFg);
+
+				> [data-icon] {
+					width: 32px;
+				}
+
+				> [data-icon],
+				> .avatar {
+					margin-right: $avatar-margin;
+				}
+
+				> .avatar {
+					width: $avatar-size;
+					height: $avatar-size;
+					vertical-align: middle;
+				}
+
+				> i {
+					position: absolute;
+					top: 0;
+					left: 20px;
+					color: var(--navIndicator);
+					font-size: 8px;
+					animation: blink 1s infinite;
+				}
+
+				&:hover {
+					text-decoration: none;
+					color: var(--navHoverFg);
+				}
+
+				&.active {
+					color: var(--navActive);
+				}
+
+				&:first-child, &:last-child {
+					position: sticky;
+					z-index: 1;
+					padding-top: 8px;
+					padding-bottom: 8px;
+					background: var(--X14);
+					-webkit-backdrop-filter: blur(8px);
+					backdrop-filter: blur(8px);
+				}
+
+				&:first-child {
+					top: 0;
+					margin-bottom: 16px;
+					border-bottom: solid 0.5px var(--divider);
+				}
+
+				&:last-child {
+					bottom: 0;
+					margin-top: 16px;
+					border-top: solid 0.5px var(--divider);
+				}
+			}
+		}
+	}
+}
+</style>
diff --git a/src/client/ui/chat/index.vue b/src/client/ui/chat/index.vue
index 91d3fb5c9d..d5c455d123 100644
--- a/src/client/ui/chat/index.vue
+++ b/src/client/ui/chat/index.vue
@@ -136,7 +136,7 @@ import { defineComponent, defineAsyncComponent } from 'vue';
 import { faLayerGroup, faBars, faHome, faCircle, faWindowMaximize, faColumns, faPencilAlt, faShareAlt, faSatelliteDish, faListUl, faSatellite, faCog, faSearch, faPlus, faStar, faAt, faLink, faEllipsisH, faGlobe } from '@fortawesome/free-solid-svg-icons';
 import { faBell, faStar as farStar, faEnvelope, faComments, faCalendarAlt } from '@fortawesome/free-regular-svg-icons';
 import { instanceName, url } from '@client/config';
-import XSidebar from '@client/components/sidebar.vue';
+import XSidebar from '@client/ui/_common_/sidebar.vue';
 import XWidgets from './widgets.vue';
 import XCommon from '../_common_/common.vue';
 import XSide from './side.vue';
@@ -354,7 +354,7 @@ export default defineComponent({
 		flex-direction: column;
 		width: 250px;
 		height: 100vh;
-		border-right: solid 1px var(--divider);
+		border-right: solid 0.5px var(--divider);
 
 		> .header, > .footer {
 			$padding: 8px;
@@ -367,11 +367,11 @@ export default defineComponent({
 			user-select: none;
 
 			&.header {
-				border-bottom: solid 1px var(--divider);
+				border-bottom: solid 0.5px var(--divider);
 			}
 
 			&.footer {
-				border-top: solid 1px var(--divider);
+				border-top: solid 0.5px var(--divider);
 			}
 
 			> .left, > .right {
@@ -526,7 +526,7 @@ export default defineComponent({
 			padding: $padding;
 			box-sizing: border-box;
 			background-color: var(--panel);
-			border-bottom: solid 1px var(--divider);
+			border-bottom: solid 0.5px var(--divider);
 			user-select: none;
 
 			> .left {
@@ -599,7 +599,7 @@ export default defineComponent({
 
 	> .side {
 		width: 350px;
-		border-left: solid 1px var(--divider);
+		border-left: solid 0.5px var(--divider);
 
 		&.widgets.sideViewOpening {
 			@media (max-width: 1400px) {
diff --git a/src/client/ui/chat/note-header.vue b/src/client/ui/chat/note-header.vue
index 55228c4c38..be08183d39 100644
--- a/src/client/ui/chat/note-header.vue
+++ b/src/client/ui/chat/note-header.vue
@@ -79,7 +79,7 @@ export default defineComponent({
 		margin: 0 .5em 0 0;
 		padding: 1px 6px;
 		font-size: 80%;
-		border: solid 1px var(--divider);
+		border: solid 0.5px var(--divider);
 		border-radius: 3px;
 	}
 
diff --git a/src/client/ui/chat/note.sub.vue b/src/client/ui/chat/note.sub.vue
index 6c778d1468..bb528dd936 100644
--- a/src/client/ui/chat/note.sub.vue
+++ b/src/client/ui/chat/note.sub.vue
@@ -130,7 +130,7 @@ export default defineComponent({
 	}
 
 	> .reply {
-		border-left: solid 1px var(--divider);
+		border-left: solid 0.5px var(--divider);
 		margin-top: 10px;
 	}
 }
diff --git a/src/client/ui/chat/note.vue b/src/client/ui/chat/note.vue
index f6789f214d..3764bbb65a 100644
--- a/src/client/ui/chat/note.vue
+++ b/src/client/ui/chat/note.vue
@@ -1127,7 +1127,7 @@ export default defineComponent({
 	}
 
 	> .reply {
-		border-top: solid 1px var(--divider);
+		border-top: solid 0.5px var(--divider);
 	}
 }
 
diff --git a/src/client/ui/chat/post-form.vue b/src/client/ui/chat/post-form.vue
index 9dd87edac4..bdf18cf290 100644
--- a/src/client/ui/chat/post-form.vue
+++ b/src/client/ui/chat/post-form.vue
@@ -615,7 +615,7 @@ export default defineComponent({
 <style lang="scss" scoped>
 .pxiwixjf {
 	position: relative;
-	border: solid 1px var(--divider);
+	border: solid 0.5px var(--divider);
 	border-radius: 8px;
 
 	> .form {
@@ -696,7 +696,7 @@ export default defineComponent({
 		> .cw {
 			z-index: 1;
 			padding-bottom: 8px;
-			border-bottom: solid 1px var(--divider);
+			border-bottom: solid 0.5px var(--divider);
 		}
 
 		> .text {
diff --git a/src/client/ui/chat/side.vue b/src/client/ui/chat/side.vue
index 2645874ce4..a3c03b6d06 100644
--- a/src/client/ui/chat/side.vue
+++ b/src/client/ui/chat/side.vue
@@ -117,7 +117,7 @@ export default defineComponent({
 .mrajymqm {
 	$header-height: 54px; // TODO: どこかに集約したい
 
-	--section-padding: 16px;
+	--root-margin: 16px;
 	--margin: var(--marginHalf);
 
 	height: 100%;
@@ -137,7 +137,7 @@ export default defineComponent({
 		-webkit-backdrop-filter: blur(32px);
 		backdrop-filter: blur(32px);
 		background-color: var(--header);
-		border-bottom: solid 1px var(--divider);
+		border-bottom: solid 0.5px var(--divider);
 		box-sizing: border-box;
 
 		> ._button {
diff --git a/src/client/ui/deck.vue b/src/client/ui/deck.vue
index a63db17b01..0429dbc9b1 100644
--- a/src/client/ui/deck.vue
+++ b/src/client/ui/deck.vue
@@ -36,7 +36,7 @@ import {  } from '@fortawesome/free-regular-svg-icons';
 import { v4 as uuid } from 'uuid';
 import { host } from '@client/config';
 import DeckColumnCore from '@client/ui/deck/column-core.vue';
-import XSidebar from '@client/components/sidebar.vue';
+import XSidebar from '@client/ui/_common_/sidebar.vue';
 import { getScrollContainer } from '@client/scripts/scroll';
 import * as os from '@client/os';
 import { sidebarDef } from '@client/sidebar';
diff --git a/src/client/ui/deck/column.vue b/src/client/ui/deck/column.vue
index 6a242c691a..3fae7c27ee 100644
--- a/src/client/ui/deck/column.vue
+++ b/src/client/ui/deck/column.vue
@@ -265,7 +265,7 @@ export default defineComponent({
 
 <style lang="scss" scoped>
 .dnpfarvg {
-	--section-padding: 10px;
+	--root-margin: 10px;
 
 	height: 100%;
 	overflow: hidden;
diff --git a/src/client/ui/deck/main-column.vue b/src/client/ui/deck/main-column.vue
index 4577b0b533..5a8c72d871 100644
--- a/src/client/ui/deck/main-column.vue
+++ b/src/client/ui/deck/main-column.vue
@@ -4,7 +4,7 @@
 		<XHeader :info="pageInfo"/>
 	</template>
 
-	<router-view v-slot="{ Component }">
+	<router-view v-slot="{ Component }" class="_flat_">
 		<transition>
 			<keep-alive :include="['timeline']">
 				<component :is="Component" :ref="changePage" @contextmenu.stop="onContextmenu"/>
diff --git a/src/client/ui/default.side.vue b/src/client/ui/default.side.vue
index 995f987a6a..3a32cb4e13 100644
--- a/src/client/ui/default.side.vue
+++ b/src/client/ui/default.side.vue
@@ -118,7 +118,7 @@ export default defineComponent({
 .qvzfzxam {
 	$header-height: 58px; // TODO: どこかに集約したい
 
-	--section-padding: 16px;
+	--root-margin: 16px;
 	--margin: var(--marginHalf);
 
 	> .container {
diff --git a/src/client/ui/default.sidebar.vue b/src/client/ui/default.sidebar.vue
new file mode 100644
index 0000000000..710a9b1f85
--- /dev/null
+++ b/src/client/ui/default.sidebar.vue
@@ -0,0 +1,362 @@
+<template>
+<div class="npcljfve" :class="{ iconOnly }">
+	<button class="item _button account" @click="openAccountMenu">
+		<MkAvatar :user="$i" class="avatar"/><MkAcct class="text" :user="$i"/>
+	</button>
+	<div class="post" @click="post">
+		<MkButton class="button" primary full>
+			<Fa :icon="faPencilAlt" fixed-width/><span class="text" v-if="!iconOnly">{{ $ts.note }}</span>
+		</MkButton>
+	</div>
+	<div class="divider"></div>
+	<MkA class="item index" active-class="active" to="/" exact>
+		<Fa :icon="faHome" fixed-width/><span class="text">{{ $ts.timeline }}</span>
+	</MkA>
+	<template v-for="item in menu">
+		<div v-if="item === '-'" class="divider"></div>
+		<component v-else-if="menuDef[item] && (menuDef[item].show !== false)" :is="menuDef[item].to ? 'MkA' : 'button'" class="item _button" :class="item" active-class="active" v-on="menuDef[item].action ? { click: menuDef[item].action } : {}" :to="menuDef[item].to">
+			<Fa :icon="menuDef[item].icon" fixed-width/><span class="text">{{ $ts[menuDef[item].title] }}</span>
+			<i v-if="menuDef[item].indicated"><Fa :icon="faCircle"/></i>
+		</component>
+	</template>
+	<div class="divider"></div>
+	<button class="item _button" :class="{ active: $route.path === '/instance' || $route.path.startsWith('/instance/') }" v-if="$i.isAdmin || $i.isModerator" @click="oepnInstanceMenu">
+		<Fa :icon="faServer" fixed-width/><span class="text">{{ $ts.instance }}</span>
+	</button>
+	<button class="item _button" @click="more">
+		<Fa :icon="faEllipsisH" fixed-width/><span class="text">{{ $ts.more }}</span>
+		<i v-if="otherNavItemIndicated"><Fa :icon="faCircle"/></i>
+	</button>
+	<MkA class="item" active-class="active" to="/settings">
+		<Fa :icon="faCog" fixed-width/><span class="text">{{ $ts.settings }}</span>
+	</MkA>
+</div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+import { faGripVertical, faChevronLeft, faHashtag, faBroadcastTower, faFireAlt, faEllipsisH, faPencilAlt, faBars, faTimes, faSearch, faUserCog, faCog, faUser, faHome, faStar, faCircle, faAt, faListUl, faPlus, faUserClock, faUsers, faTachometerAlt, faExchangeAlt, faGlobe, faChartBar, faCloud, faServer, faInfoCircle, faQuestionCircle, faProjectDiagram, faStream, faExclamationCircle } from '@fortawesome/free-solid-svg-icons';
+import { faBell, faEnvelope, faLaugh, faComments } from '@fortawesome/free-regular-svg-icons';
+import { host } from '@client/config';
+import { search } from '@client/scripts/search';
+import * as os from '@client/os';
+import { sidebarDef } from '@client/sidebar';
+import { getAccounts, addAccount, login } from '@client/account';
+import MkButton from '@client/components/ui/button.vue';
+import { StickySidebar } from '@client/scripts/sticky-sidebar';
+
+export default defineComponent({
+	components: {
+		MkButton
+	},
+
+	data() {
+		return {
+			host: host,
+			accounts: [],
+			connection: null,
+			menuDef: sidebarDef,
+			iconOnly: false,
+			faGripVertical, faChevronLeft, faComments, faHashtag, faBroadcastTower, faFireAlt, faEllipsisH, faPencilAlt, faBars, faTimes, faBell, faSearch, faUserCog, faCog, faUser, faHome, faStar, faCircle, faAt, faEnvelope, faListUl, faPlus, faUserClock, faLaugh, faUsers, faTachometerAlt, faExchangeAlt, faGlobe, faChartBar, faCloud, faServer, faProjectDiagram
+		};
+	},
+
+	computed: {
+		menu(): string[] {
+			return this.$store.state.menu;
+		},
+
+		otherNavItemIndicated(): boolean {
+			for (const def in this.menuDef) {
+				if (this.menu.includes(def)) continue;
+				if (this.menuDef[def].indicated) return true;
+			}
+			return false;
+		},
+	},
+
+	watch: {
+		'$store.reactiveState.sidebarDisplay.value'() {
+			this.calcViewState();
+		},
+
+		iconOnly() {
+			this.$nextTick(() => {
+				this.$emit('change-view-mode');
+			});
+		},
+	},
+
+	created() {
+		window.addEventListener('resize', this.calcViewState);
+		this.calcViewState();
+	},
+
+	mounted() {
+		const sticky = new StickySidebar(this.$el.parentElement, 16);
+		window.addEventListener('scroll', () => {
+			sticky.calc(window.scrollY);
+		}, { passive: true });
+	},
+
+	methods: {
+		calcViewState() {
+			this.iconOnly = (window.innerWidth <= 1400) || (this.$store.state.sidebarDisplay === 'icon');
+		},
+
+		post() {
+			os.post();
+		},
+
+		search() {
+			search();
+		},
+
+		async openAccountMenu(ev) {
+			const storedAccounts = getAccounts().filter(x => x.id !== this.$i.id);
+			const accountsPromise = os.api('users/show', { userIds: storedAccounts.map(x => x.id) });
+
+			const accountItemPromises = storedAccounts.map(a => new Promise(res => {
+				accountsPromise.then(accounts => {
+					const account = accounts.find(x => x.id === a.id);
+					if (account == null) return res(null);
+					res({
+						type: 'user',
+						user: account,
+						action: () => { this.switchAccount(account); }
+					});
+				});
+			}));
+
+			os.modalMenu([...[{
+				type: 'link',
+				text: this.$ts.profile,
+				to: `/@${ this.$i.username }`,
+				avatar: this.$i,
+			}, null, ...accountItemPromises, {
+				icon: faPlus,
+				text: this.$ts.addAcount,
+				action: () => {
+					os.modalMenu([{
+						text: this.$ts.existingAcount,
+						action: () => { this.addAcount(); },
+					}, {
+						text: this.$ts.createAccount,
+						action: () => { this.createAccount(); },
+					}], ev.currentTarget || ev.target);
+				},
+			}]], ev.currentTarget || ev.target, {
+				align: 'left'
+			});
+		},
+
+		oepnInstanceMenu(ev) {
+			os.modalMenu([{
+				type: 'link',
+				text: this.$ts.dashboard,
+				to: '/instance',
+				icon: faTachometerAlt,
+			}, null, this.$i.isAdmin ? {
+				type: 'link',
+				text: this.$ts.settings,
+				to: '/instance/settings',
+				icon: faCog,
+			} : undefined, {
+				type: 'link',
+				text: this.$ts.customEmojis,
+				to: '/instance/emojis',
+				icon: faLaugh,
+			}, {
+				type: 'link',
+				text: this.$ts.users,
+				to: '/instance/users',
+				icon: faUsers,
+			}, {
+				type: 'link',
+				text: this.$ts.files,
+				to: '/instance/files',
+				icon: faCloud,
+			}, {
+				type: 'link',
+				text: this.$ts.jobQueue,
+				to: '/instance/queue',
+				icon: faExchangeAlt,
+			}, {
+				type: 'link',
+				text: this.$ts.federation,
+				to: '/instance/federation',
+				icon: faGlobe,
+			}, {
+				type: 'link',
+				text: this.$ts.relays,
+				to: '/instance/relays',
+				icon: faProjectDiagram,
+			}, {
+				type: 'link',
+				text: this.$ts.announcements,
+				to: '/instance/announcements',
+				icon: faBroadcastTower,
+			}, {
+				type: 'link',
+				text: this.$ts.abuseReports,
+				to: '/instance/abuses',
+				icon: faExclamationCircle,
+			}, {
+				type: 'link',
+				text: this.$ts.logs,
+				to: '/instance/logs',
+				icon: faStream,
+			}], ev.currentTarget || ev.target);
+		},
+
+		more(ev) {
+			os.popup(import('@client/components/launch-pad.vue'), {}, {
+			}, 'closed');
+		},
+
+		addAcount() {
+			os.popup(import('@client/components/signin-dialog.vue'), {}, {
+				done: res => {
+					addAccount(res.id, res.i);
+					os.success();
+				},
+			}, 'closed');
+		},
+
+		createAccount() {
+			os.popup(import('@client/components/signup-dialog.vue'), {}, {
+				done: res => {
+					addAccount(res.id, res.i);
+					this.switchAccountWithToken(res.i);
+				},
+			}, 'closed');
+		},
+
+		switchAccount(account: any) {
+			const storedAccounts = getAccounts();
+			const token = storedAccounts.find(x => x.id === account.id).token;
+			this.switchAccountWithToken(token);
+		},
+
+		switchAccountWithToken(token: string) {
+			login(token);
+		},
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.npcljfve {
+	$ui-font-size: 1em; // TODO: どこかに集約したい
+	$nav-icon-only-width: 78px; // TODO: どこかに集約したい
+	$avatar-size: 32px;
+	$avatar-margin: 8px;
+
+	padding: 0 16px;
+	box-sizing: border-box;
+	width: 260px;
+
+	&.iconOnly {
+		flex: 0 0 $nav-icon-only-width;
+		width: $nav-icon-only-width !important;
+
+		> .divider {
+			margin: 8px auto;
+			width: calc(100% - 32px);
+		}
+
+		> .post {
+			> .button {
+				width: 46px;
+				height: 46px;
+				padding: 0;
+			}
+		}
+
+		> .item {
+			padding-left: 0;
+			width: 100%;
+			text-align: center;
+			font-size: $ui-font-size * 1.1;
+			line-height: 3.7rem;
+
+			> [data-icon],
+			> .avatar {
+				margin-right: 0;
+			}
+
+			> i {
+				left: 10px;
+			}
+
+			> .text {
+				display: none;
+			}
+
+		}
+	}
+
+	> .divider {
+		margin: 10px 0;
+		border-top: solid 0.5px var(--divider);
+	}
+
+	> .post {
+		position: sticky;
+		top: 0;
+		z-index: 1;
+		padding: 16px 0;
+		background: var(--bg);
+
+		> .button {
+			min-width: 0;
+		}
+	}
+
+	> .item {
+		position: relative;
+		display: block;
+		font-size: $ui-font-size;
+		line-height: 2.6rem;
+		text-overflow: ellipsis;
+		overflow: hidden;
+		white-space: nowrap;
+		width: 100%;
+		text-align: left;
+		box-sizing: border-box;
+
+		> [data-icon] {
+			width: 32px;
+		}
+
+		> [data-icon],
+		> .avatar {
+			margin-right: $avatar-margin;
+		}
+
+		> .avatar {
+			width: $avatar-size;
+			height: $avatar-size;
+			vertical-align: middle;
+		}
+
+		> i {
+			position: absolute;
+			top: 0;
+			left: 20px;
+			color: var(--navIndicator);
+			font-size: 8px;
+			animation: blink 1s infinite;
+		}
+
+		&:hover {
+			text-decoration: none;
+			color: var(--navHoverFg);
+		}
+
+		&.active {
+			color: var(--navActive);
+		}
+	}
+}
+</style>
diff --git a/src/client/ui/default.vue b/src/client/ui/default.vue
index 38f98f6365..84d6c01094 100644
--- a/src/client/ui/default.vue
+++ b/src/client/ui/default.vue
@@ -1,13 +1,15 @@
 <template>
-<div class="mk-app" :class="{ wallpaper }">
-	<XSidebar ref="nav" class="sidebar"/>
+<div class="mk-app" :class="{ wallpaper, isMobile }">
+	<div class="columns">
+		<div class="sidebar" ref="sidebar" v-if="!isMobile">
+			<XSidebar/>
+		</div>
 
-	<div class="contents" ref="contents" :class="{ withHeader: $store.state.titlebar }" @contextmenu.stop="onContextmenu">
-		<header v-if="$store.state.titlebar" class="header" ref="header" @click="onHeaderClick">
-			<XHeader :info="pageInfo"/>
-		</header>
-		<main ref="main">
-			<div class="content">
+		<main class="main _panel" @contextmenu.stop="onContextmenu">
+			<header v-if="$store.state.titlebar" class="header" @click="onHeaderClick">
+				<XHeader :info="pageInfo"/>
+			</header>
+			<div class="content _flat_">
 				<router-view v-slot="{ Component }">
 					<transition :name="$store.state.animation ? 'page' : ''" mode="out-in" @enter="onTransition">
 						<keep-alive :include="['timeline']">
@@ -16,26 +18,22 @@
 					</transition>
 				</router-view>
 			</div>
-			<div class="spacer"></div>
 		</main>
-	</div>
-
-	<XSide v-if="isDesktop" class="side" ref="side"/>
 
-	<div v-if="isDesktop" class="widgets">
-		<div ref="widgetsSpacer"></div>
-		<XWidgets @mounted="attachSticky"/>
+		<div v-if="isDesktop" class="widgets" ref="widgets">
+			<XWidgets @mounted="attachSticky"/>
+		</div>
 	</div>
 
-	<div class="buttons" :class="{ navHidden }">
-		<button class="button nav _button" @click="showNav" ref="navButton"><Fa :icon="faBars"/><i v-if="navIndicated"><Fa :icon="faCircle"/></i></button>
+	<div class="buttons" v-if="isMobile">
+		<button class="button nav _button" @click="showDrawerNav" ref="navButton"><Fa :icon="faBars"/><i v-if="navIndicated"><Fa :icon="faCircle"/></i></button>
 		<button class="button home _button" @click="$route.name === 'index' ? top() : $router.push('/')"><Fa :icon="faHome"/></button>
 		<button class="button notifications _button" @click="$router.push('/my/notifications')"><Fa :icon="faBell"/><i v-if="$i.hasUnreadNotification"><Fa :icon="faCircle"/></i></button>
 		<button class="button widget _button" @click="widgetsShowing = true"><Fa :icon="faLayerGroup"/></button>
 		<button class="button post _button" @click="post"><Fa :icon="faPencilAlt"/></button>
 	</div>
 
-	<button class="widgetButton _button" :class="{ navHidden }" @click="widgetsShowing = true"><Fa :icon="faLayerGroup"/></button>
+	<XDrawerSidebar ref="drawerNav" class="sidebar" v-if="isMobile"/>
 
 	<transition name="tray-back">
 		<div class="tray-back _modalBg"
@@ -59,38 +57,31 @@ import { faLayerGroup, faBars, faHome, faCircle, faWindowMaximize, faColumns, fa
 import { faBell } from '@fortawesome/free-regular-svg-icons';
 import { instanceName } from '@client/config';
 import { StickySidebar } from '@client/scripts/sticky-sidebar';
-import XSidebar from '@client/components/sidebar.vue';
+import XSidebar from './default.sidebar.vue';
+import XDrawerSidebar from '@client/ui/_common_/sidebar.vue';
 import XCommon from './_common_/common.vue';
 import XHeader from './_common_/header.vue';
-import XSide from './default.side.vue';
 import * as os from '@client/os';
 import { sidebarDef } from '@client/sidebar';
 
 const DESKTOP_THRESHOLD = 1100;
+const MOBILE_THRESHOLD = 600;
 
 export default defineComponent({
 	components: {
 		XCommon,
 		XSidebar,
+		XDrawerSidebar,
 		XHeader,
 		XWidgets: defineAsyncComponent(() => import('./default.widgets.vue')),
-		XSide, // NOTE: dynamic importするとAsyncComponentWrapperが間に入るせいでref取得できなくて面倒になる
-	},
-
-	provide() {
-		return {
-			sideViewHook: this.isDesktop ? (url) => {
-				this.$refs.side.navigate(url);
-			} : null
-		};
 	},
 
 	data() {
 		return {
 			pageInfo: null,
-			isDesktop: window.innerWidth >= DESKTOP_THRESHOLD,
 			menuDef: sidebarDef,
-			navHidden: false,
+			isMobile: window.innerWidth <= MOBILE_THRESHOLD,
+			isDesktop: window.innerWidth >= DESKTOP_THRESHOLD,
 			widgetsShowing: false,
 			wallpaper: localStorage.getItem('wallpaper') != null,
 			faLayerGroup, faBars, faBell, faHome, faCircle, faPencilAlt,
@@ -125,21 +116,10 @@ export default defineComponent({
 	},
 
 	mounted() {
-		this.adjustUI();
-
-		const ro = new ResizeObserver((entries, observer) => {
-			this.adjustUI();
-		});
-
-		ro.observe(this.$refs.contents);
-
-		window.addEventListener('resize', this.adjustUI, { passive: true });
-
-		if (!this.isDesktop) {
-			window.addEventListener('resize', () => {
-				if (window.innerWidth >= DESKTOP_THRESHOLD) this.isDesktop = true;
-			}, { passive: true });
-		}
+		window.addEventListener('resize', () => {
+			this.isMobile = (window.innerWidth <= MOBILE_THRESHOLD);
+			this.isDesktop = (window.innerWidth >= DESKTOP_THRESHOLD);
+		}, { passive: true });
 	},
 
 	methods: {
@@ -151,20 +131,8 @@ export default defineComponent({
 			}
 		},
 
-		adjustUI() {
-			const navWidth = this.$refs.nav.$el.offsetWidth;
-			this.navHidden = navWidth === 0;
-			if (this.$refs.contents == null) return;
-			const width = this.$refs.contents.offsetWidth;
-			if (this.$refs.header) this.$refs.header.style.width = `${width}px`;
-		},
-
-		showNav() {
-			this.$refs.nav.show();
-		},
-
-		attachSticky(el) {
-			const sticky = new StickySidebar(el, this.$refs.widgetsSpacer);
+		attachSticky() {
+			const sticky = new StickySidebar(this.$refs.widgets, 16);
 			window.addEventListener('scroll', () => {
 				sticky.calc(window.scrollY);
 			}, { passive: true });
@@ -178,6 +146,10 @@ export default defineComponent({
 			window.scroll({ top: 0, behavior: 'smooth' });
 		},
 
+		showDrawerNav() {
+			this.$refs.drawerNav.show();
+		},
+
 		onTransition() {
 			if (window._scroll) window._scroll();
 		},
@@ -201,12 +173,6 @@ export default defineComponent({
 				type: 'label',
 				text: path,
 			}, {
-				icon: faColumns,
-				text: this.$ts.openInSideView,
-				action: () => {
-					this.$refs.side.navigate(path);
-				}
-			}, {
 				icon: faWindowMaximize,
 				text: this.$ts.openInWindow,
 				action: () => {
@@ -242,99 +208,98 @@ export default defineComponent({
 }
 
 .mk-app {
-	$header-height: 58px; // TODO: どこかに集約したい
-	$ui-font-size: 1em; // TODO: どこかに集約したい
-	$widgets-hide-threshold: 1090px;
+	$header-height: 50px;
+	$ui-font-size: 1em;
+	$widgets-hide-threshold: 1200px;
+	$nav-icon-only-width: 78px; // TODO: どこかに集約したい
 
 	// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
 	min-height: calc(var(--vh, 1vh) * 100);
 	box-sizing: border-box;
-	display: flex;
 
 	&.wallpaper {
 		background: var(--wallpaperOverlay);
 		//backdrop-filter: blur(4px);
 	}
 
-	> .contents {
-		width: 100%;
-		min-width: 0;
+	&.isMobile {
+		> .columns {
+			display: block;
+			margin: 0;
 
-		&.withHeader {
-			padding-top: $header-height;
-		}
+			> .main {
+				margin: 0;
+				border: none;
+				width: 100%;
+				border-radius: 0;
 
-		> .header {
-			position: fixed;
-			z-index: 1000;
-			top: 0;
-			height: $header-height;
-			width: 100%;
-			line-height: $header-height;
-			text-align: center;
-			font-weight: bold;
-			//background-color: var(--panel);
-			-webkit-backdrop-filter: blur(32px);
-			backdrop-filter: blur(32px);
-			background-color: var(--header);
-			//border-bottom: solid 1px var(--divider);
-			user-select: none;
+				> .header {
+					width: 100%;
+				}
+			}
 		}
+	}
+
+	> .columns {
+		display: flex;
+		justify-content: center;
+		max-width: 100%;
+		margin: 32px 0;
+
+		> .main {
+			width: 750px;
+			margin: 0 16px 0 0;
+			background: var(--bg);
+			--margin: 12px;
 
-		> main {
-			min-width: 0;
+			> .header {
+				position: sticky;
+				z-index: 1000;
+				top: 0;
+				height: $header-height;
+				line-height: $header-height;
+				-webkit-backdrop-filter: blur(32px);
+				backdrop-filter: blur(32px);
+				background-color: var(--header);
+				border-bottom: solid 0.5px var(--divider);
+			}
 
 			> .content {
-				> * {
-					// ほんとは単に calc(100vh - #{$header-height}) と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
-					min-height: calc((var(--vh, 1vh) * 100) - #{$header-height});
-				}
+				background: var(--bg);
+				--stickyTop: #{$header-height};
 			}
 
-			> .spacer {
-				height: 82px;
+			@media (max-width: 850px) {
+				padding-top: $header-height;
 
-				@media (min-width: ($widgets-hide-threshold + 1px)) {
-					display: none;
+				> .header {
+					position: fixed;
+					width: calc(100% - #{$nav-icon-only-width});
 				}
 			}
 		}
-	}
-
-	> .side {
-		min-width: 370px;
-		max-width: 370px;
-		border-left: solid 1px var(--divider);
-	}
 
-	> .widgets {
-		padding: 0 var(--margin);
-		border-left: solid 1px var(--divider);
+		> .widgets {
+			//--panelShadow: none;
 
-		@media (max-width: $widgets-hide-threshold) {
-			display: none;
+			@media (max-width: $widgets-hide-threshold) {
+				display: none;
+			}
 		}
-	}
 
-	> .widgetButton {
-		display: block;
-		position: fixed;
-		z-index: 1000;
-		bottom: 32px;
-		right: 32px;
-		width: 64px;
-		height: 64px;
-		border-radius: 100%;
-		box-shadow: 0 3px 5px -1px rgba(0, 0, 0, 0.2), 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12);
-		font-size: 22px;
-		background: var(--panel);
+		@media (max-width: 850px) {
+			margin: 0;
 
-		&.navHidden {
-			display: none;
-		}
+			> .sidebar {
+				border-right: solid 0.5px var(--divider);
+			}
 
-		@media (min-width: ($widgets-hide-threshold + 1px)) {
-			display: none;
+			> .main {
+				margin: 0;
+				border-radius: 0;
+				box-shadow: none;
+				width: 100%;
+			}
 		}
 	}
 
@@ -349,10 +314,7 @@ export default defineComponent({
 		-webkit-backdrop-filter: blur(32px);
 		backdrop-filter: blur(32px);
 		background-color: var(--header);
-
-		&:not(.navHidden) {
-			display: none;
-		}
+		border-top: solid 0.5px var(--divider);
 
 		> .button {
 			position: relative;
@@ -429,6 +391,3 @@ export default defineComponent({
 	}
 }
 </style>
-
-<style lang="scss">
-</style>
diff --git a/src/client/ui/default.widgets.vue b/src/client/ui/default.widgets.vue
index 35d3442bb2..b12de841a7 100644
--- a/src/client/ui/default.widgets.vue
+++ b/src/client/ui/default.widgets.vue
@@ -61,8 +61,6 @@ export default defineComponent({
 .efzpzdvf {
 	position: sticky;
 	height: min-content;
-	min-height: 100vh;
-	padding: var(--margin) 0;
 	box-sizing: border-box;
 
 	> * {
diff --git a/src/client/ui/desktop.vue b/src/client/ui/desktop.vue
index 1480fd1840..a60aed6841 100644
--- a/src/client/ui/desktop.vue
+++ b/src/client/ui/desktop.vue
@@ -12,7 +12,7 @@ import { host } from '@client/config';
 import { search } from '@client/scripts/search';
 import XCommon from './_common_/common.vue';
 import * as os from '@client/os';
-import XSidebar from '@client/components/sidebar.vue';
+import XSidebar from '@client/ui/_common_/sidebar.vue';
 import { sidebarDef } from '@client/sidebar';
 import { ColdDeviceStorage } from '@client/store';
 
diff --git a/src/client/ui/universal.vue b/src/client/ui/universal.vue
new file mode 100644
index 0000000000..e1b368c25a
--- /dev/null
+++ b/src/client/ui/universal.vue
@@ -0,0 +1,433 @@
+<template>
+<div class="mk-app" :class="{ wallpaper }">
+	<XSidebar ref="nav" class="sidebar"/>
+
+	<div class="contents" ref="contents" :class="{ withHeader: $store.state.titlebar }" @contextmenu.stop="onContextmenu">
+		<header v-if="$store.state.titlebar" class="header" ref="header" @click="onHeaderClick">
+			<XHeader :info="pageInfo"/>
+		</header>
+		<main ref="main">
+			<div class="content">
+				<router-view v-slot="{ Component }">
+					<transition :name="$store.state.animation ? 'page' : ''" mode="out-in" @enter="onTransition">
+						<keep-alive :include="['timeline']">
+							<component :is="Component" :ref="changePage"/>
+						</keep-alive>
+					</transition>
+				</router-view>
+			</div>
+			<div class="spacer"></div>
+		</main>
+	</div>
+
+	<XSide v-if="isDesktop" class="side" ref="side"/>
+
+	<div v-if="isDesktop" class="widgets" ref="widgets">
+		<XWidgets @mounted="attachSticky"/>
+	</div>
+
+	<div class="buttons" :class="{ navHidden }">
+		<button class="button nav _button" @click="showNav" ref="navButton"><Fa :icon="faBars"/><i v-if="navIndicated"><Fa :icon="faCircle"/></i></button>
+		<button class="button home _button" @click="$route.name === 'index' ? top() : $router.push('/')"><Fa :icon="faHome"/></button>
+		<button class="button notifications _button" @click="$router.push('/my/notifications')"><Fa :icon="faBell"/><i v-if="$i.hasUnreadNotification"><Fa :icon="faCircle"/></i></button>
+		<button class="button widget _button" @click="widgetsShowing = true"><Fa :icon="faLayerGroup"/></button>
+		<button class="button post _button" @click="post"><Fa :icon="faPencilAlt"/></button>
+	</div>
+
+	<button class="widgetButton _button" :class="{ navHidden }" @click="widgetsShowing = true"><Fa :icon="faLayerGroup"/></button>
+
+	<transition name="tray-back">
+		<div class="tray-back _modalBg"
+			v-if="widgetsShowing"
+			@click="widgetsShowing = false"
+			@touchstart.passive="widgetsShowing = false"
+		></div>
+	</transition>
+
+	<transition name="tray">
+		<XWidgets v-if="widgetsShowing" class="tray"/>
+	</transition>
+
+	<XCommon/>
+</div>
+</template>
+
+<script lang="ts">
+import { defineComponent, defineAsyncComponent } from 'vue';
+import { faLayerGroup, faBars, faHome, faCircle, faWindowMaximize, faColumns, faPencilAlt } from '@fortawesome/free-solid-svg-icons';
+import { faBell } from '@fortawesome/free-regular-svg-icons';
+import { instanceName } from '@client/config';
+import { StickySidebar } from '@client/scripts/sticky-sidebar';
+import XSidebar from '@client/ui/_common_/sidebar.vue';
+import XCommon from './_common_/common.vue';
+import XHeader from './_common_/header.vue';
+import XSide from './default.side.vue';
+import * as os from '@client/os';
+import { sidebarDef } from '@client/sidebar';
+
+const DESKTOP_THRESHOLD = 1100;
+
+export default defineComponent({
+	components: {
+		XCommon,
+		XSidebar,
+		XHeader,
+		XWidgets: defineAsyncComponent(() => import('./universal.widgets.vue')),
+		XSide, // NOTE: dynamic importするとAsyncComponentWrapperが間に入るせいでref取得できなくて面倒になる
+	},
+
+	provide() {
+		return {
+			sideViewHook: this.isDesktop ? (url) => {
+				this.$refs.side.navigate(url);
+			} : null
+		};
+	},
+
+	data() {
+		return {
+			pageInfo: null,
+			isDesktop: window.innerWidth >= DESKTOP_THRESHOLD,
+			menuDef: sidebarDef,
+			navHidden: false,
+			widgetsShowing: false,
+			wallpaper: localStorage.getItem('wallpaper') != null,
+			faLayerGroup, faBars, faBell, faHome, faCircle, faPencilAlt,
+		};
+	},
+
+	computed: {
+		navIndicated(): boolean {
+			for (const def in this.menuDef) {
+				if (def === 'notifications') continue; // 通知は下にボタンとして表示されてるから
+				if (this.menuDef[def].indicated) return true;
+			}
+			return false;
+		}
+	},
+
+	created() {
+		document.documentElement.style.overflowY = 'scroll';
+
+		if (this.$store.state.widgets.length === 0) {
+			this.$store.set('widgets', [{
+				name: 'calendar',
+				id: 'a', place: 'right', data: {}
+			}, {
+				name: 'notifications',
+				id: 'b', place: 'right', data: {}
+			}, {
+				name: 'trends',
+				id: 'c', place: 'right', data: {}
+			}]);
+		}
+	},
+
+	mounted() {
+		this.adjustUI();
+
+		const ro = new ResizeObserver((entries, observer) => {
+			this.adjustUI();
+		});
+
+		ro.observe(this.$refs.contents);
+
+		window.addEventListener('resize', this.adjustUI, { passive: true });
+
+		if (!this.isDesktop) {
+			window.addEventListener('resize', () => {
+				if (window.innerWidth >= DESKTOP_THRESHOLD) this.isDesktop = true;
+			}, { passive: true });
+		}
+	},
+
+	methods: {
+		changePage(page) {
+			if (page == null) return;
+			if (page.INFO) {
+				this.pageInfo = page.INFO;
+				document.title = `${this.pageInfo.title} | ${instanceName}`;
+			}
+		},
+
+		adjustUI() {
+			const navWidth = this.$refs.nav.$el.offsetWidth;
+			this.navHidden = navWidth === 0;
+			if (this.$refs.contents == null) return;
+			const width = this.$refs.contents.offsetWidth;
+			if (this.$refs.header) this.$refs.header.style.width = `${width}px`;
+		},
+
+		showNav() {
+			this.$refs.nav.show();
+		},
+
+		attachSticky(el) {
+			const sticky = new StickySidebar(this.$refs.widgets);
+			window.addEventListener('scroll', () => {
+				sticky.calc(window.scrollY);
+			}, { passive: true });
+		},
+
+		post() {
+			os.post();
+		},
+
+		top() {
+			window.scroll({ top: 0, behavior: 'smooth' });
+		},
+
+		onTransition() {
+			if (window._scroll) window._scroll();
+		},
+
+		onHeaderClick() {
+			window.scroll({ top: 0, behavior: 'smooth' });
+		},
+
+		onContextmenu(e) {
+			const isLink = (el: HTMLElement) => {
+				if (el.tagName === 'A') return true;
+				if (el.parentElement) {
+					return isLink(el.parentElement);
+				}
+			};
+			if (isLink(e.target)) return;
+			if (['INPUT', 'TEXTAREA'].includes(e.target.tagName) || e.target.attributes['contenteditable']) return;
+			if (window.getSelection().toString() !== '') return;
+			const path = this.$route.path;
+			os.contextMenu([{
+				type: 'label',
+				text: path,
+			}, {
+				icon: faColumns,
+				text: this.$ts.openInSideView,
+				action: () => {
+					this.$refs.side.navigate(path);
+				}
+			}, {
+				icon: faWindowMaximize,
+				text: this.$ts.openInWindow,
+				action: () => {
+					os.pageWindow(path);
+				}
+			}], e);
+		},
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.tray-enter-active,
+.tray-leave-active {
+	opacity: 1;
+	transform: translateX(0);
+	transition: transform 300ms cubic-bezier(0.23, 1, 0.32, 1), opacity 300ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.tray-enter-from,
+.tray-leave-active {
+	opacity: 0;
+	transform: translateX(240px);
+}
+
+.tray-back-enter-active,
+.tray-back-leave-active {
+	opacity: 1;
+	transition: opacity 300ms cubic-bezier(0.23, 1, 0.32, 1);
+}
+.tray-back-enter-from,
+.tray-back-leave-active {
+	opacity: 0;
+}
+
+.mk-app {
+	$header-height: 58px; // TODO: どこかに集約したい
+	$ui-font-size: 1em; // TODO: どこかに集約したい
+	$widgets-hide-threshold: 1090px;
+
+	// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
+	min-height: calc(var(--vh, 1vh) * 100);
+	box-sizing: border-box;
+	display: flex;
+
+	&.wallpaper {
+		background: var(--wallpaperOverlay);
+		//backdrop-filter: blur(4px);
+	}
+
+	> .contents {
+		width: 100%;
+		min-width: 0;
+
+		&.withHeader {
+			padding-top: $header-height;
+		}
+
+		> .header {
+			position: fixed;
+			z-index: 1000;
+			top: 0;
+			height: $header-height;
+			width: 100%;
+			line-height: $header-height;
+			text-align: center;
+			font-weight: bold;
+			//background-color: var(--panel);
+			-webkit-backdrop-filter: blur(32px);
+			backdrop-filter: blur(32px);
+			background-color: var(--header);
+			//border-bottom: solid 0.5px var(--divider);
+			user-select: none;
+		}
+
+		> main {
+			min-width: 0;
+
+			> .content {
+				> * {
+					// ほんとは単に calc(100vh - #{$header-height}) と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
+					min-height: calc((var(--vh, 1vh) * 100) - #{$header-height});
+				}
+			}
+
+			> .spacer {
+				height: 82px;
+
+				@media (min-width: ($widgets-hide-threshold + 1px)) {
+					display: none;
+				}
+			}
+		}
+	}
+
+	> .side {
+		min-width: 370px;
+		max-width: 370px;
+		border-left: solid 0.5px var(--divider);
+	}
+
+	> .widgets {
+		padding: 0 var(--margin);
+		border-left: solid 0.5px var(--divider);
+
+		@media (max-width: $widgets-hide-threshold) {
+			display: none;
+		}
+	}
+
+	> .widgetButton {
+		display: block;
+		position: fixed;
+		z-index: 1000;
+		bottom: 32px;
+		right: 32px;
+		width: 64px;
+		height: 64px;
+		border-radius: 100%;
+		box-shadow: 0 3px 5px -1px rgba(0, 0, 0, 0.2), 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12);
+		font-size: 22px;
+		background: var(--panel);
+
+		&.navHidden {
+			display: none;
+		}
+
+		@media (min-width: ($widgets-hide-threshold + 1px)) {
+			display: none;
+		}
+	}
+
+	> .buttons {
+		position: fixed;
+		z-index: 1000;
+		bottom: 0;
+		padding: 16px;
+		display: flex;
+		width: 100%;
+		box-sizing: border-box;
+		-webkit-backdrop-filter: blur(32px);
+		backdrop-filter: blur(32px);
+		background-color: var(--header);
+
+		&:not(.navHidden) {
+			display: none;
+		}
+
+		> .button {
+			position: relative;
+			flex: 1;
+			padding: 0;
+			margin: auto;
+			height: 64px;
+			border-radius: 8px;
+			background: var(--panel);
+			color: var(--fg);
+
+			&:not(:last-child) {
+				margin-right: 12px;
+			}
+
+			@media (max-width: 400px) {
+				height: 60px;
+
+				&:not(:last-child) {
+					margin-right: 8px;
+				}
+			}
+
+			&:hover {
+				background: var(--X2);
+			}
+
+			> i {
+				position: absolute;
+				top: 0;
+				left: 0;
+				color: var(--indicator);
+				font-size: 16px;
+				animation: blink 1s infinite;
+			}
+
+			&:first-child {
+				margin-left: 0;
+			}
+
+			&:last-child {
+				margin-right: 0;
+			}
+
+			> * {
+				font-size: 22px;
+			}
+
+			&:disabled {
+				cursor: default;
+
+				> * {
+					opacity: 0.5;
+				}
+			}
+		}
+	}
+
+	> .tray-back {
+		z-index: 1001;
+	}
+
+	> .tray {
+		position: fixed;
+		top: 0;
+		right: 0;
+		z-index: 1001;
+		// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
+		height: calc(var(--vh, 1vh) * 100);
+		padding: var(--margin);
+		box-sizing: border-box;
+		overflow: auto;
+		background: var(--bg);
+	}
+}
+</style>
+
+<style lang="scss">
+</style>
diff --git a/src/client/ui/universal.widgets.vue b/src/client/ui/universal.widgets.vue
new file mode 100644
index 0000000000..35d3442bb2
--- /dev/null
+++ b/src/client/ui/universal.widgets.vue
@@ -0,0 +1,81 @@
+<template>
+<div class="efzpzdvf">
+	<XWidgets :edit="editMode" :widgets="$store.reactiveState.widgets.value" @add-widget="addWidget" @remove-widget="removeWidget" @update-widget="updateWidget" @update-widgets="updateWidgets" @exit="editMode = false"/>
+
+	<button v-if="editMode" @click="editMode = false" class="_textButton" style="font-size: 0.9em;"><Fa :icon="faCheck"/> {{ $ts.editWidgetsExit }}</button>
+	<button v-else @click="editMode = true" class="_textButton" style="font-size: 0.9em;"><Fa :icon="faPencilAlt"/> {{ $ts.editWidgets }}</button>
+</div>
+</template>
+
+<script lang="ts">
+import { defineComponent, defineAsyncComponent } from 'vue';
+import { faPencilAlt, faPlus, faBars, faTimes, faCheck } from '@fortawesome/free-solid-svg-icons';
+import XWidgets from '@client/components/widgets.vue';
+import * as os from '@client/os';
+
+export default defineComponent({
+	components: {
+		XWidgets
+	},
+
+	emits: ['mounted'],
+
+	data() {
+		return {
+			editMode: false,
+			faPencilAlt, faPlus, faBars, faTimes, faCheck,
+		};
+	},
+
+	mounted() {
+		this.$emit('mounted', this.$el);
+	},
+
+	methods: {
+		addWidget(widget) {
+			this.$store.set('widgets', [{
+				...widget,
+				place: null,
+			}, ...this.$store.state.widgets]);
+		},
+
+		removeWidget(widget) {
+			this.$store.set('widgets', this.$store.state.widgets.filter(w => w.id != widget.id));
+		},
+
+		updateWidget({ id, data }) {
+			this.$store.set('widgets', this.$store.state.widgets.map(w => w.id === id ? {
+				...w,
+				data: data
+			} : w));
+		},
+
+		updateWidgets(widgets) {
+			this.$store.set('widgets', widgets);
+		}
+	}
+});
+</script>
+
+<style lang="scss" scoped>
+.efzpzdvf {
+	position: sticky;
+	height: min-content;
+	min-height: 100vh;
+	padding: var(--margin) 0;
+	box-sizing: border-box;
+
+	> * {
+		margin: var(--margin) 0;
+		width: 300px;
+
+		&:first-child {
+			margin-top: 0;
+		}
+	}
+
+	> .add {
+		margin: 0 auto;
+	}
+}
+</style>
diff --git a/src/client/ui/zen.vue b/src/client/ui/zen.vue
index 9215a639b0..321eb1a025 100644
--- a/src/client/ui/zen.vue
+++ b/src/client/ui/zen.vue
@@ -94,7 +94,7 @@ export default defineComponent({
 			-webkit-backdrop-filter: blur(32px);
 			backdrop-filter: blur(32px);
 			background-color: var(--header);
-			border-bottom: solid 1px var(--divider);
+			border-bottom: solid 0.5px var(--divider);
 		}
 
 		> main {