diff --git a/packages/frontend-embed/src/components/EmMediaBanner.vue b/packages/frontend-embed/src/components/EmMediaBanner.vue
index 3e3dfd95b2..cf4a4c53b5 100644
--- a/packages/frontend-embed/src/components/EmMediaBanner.vue
+++ b/packages/frontend-embed/src/components/EmMediaBanner.vue
@@ -31,10 +31,10 @@ defineProps<{
 	display: flex;
 	align-items: center;
 	width: 100%;
-	padding: var(--margin);
+	padding: var(--MI-margin);
 	margin-top: 4px;
 	border: 1px solid var(--MI_THEME-inputBorder);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	background-color: var(--MI_THEME-panel);
 	transition: background-color .1s, border-color .1s;
 
diff --git a/packages/frontend-embed/src/components/EmMediaVideo.vue b/packages/frontend-embed/src/components/EmMediaVideo.vue
index 5ca0b92d43..e2779bdee4 100644
--- a/packages/frontend-embed/src/components/EmMediaVideo.vue
+++ b/packages/frontend-embed/src/components/EmMediaVideo.vue
@@ -29,9 +29,9 @@ defineProps<{
 	width: 100%;
 	height: auto;
 	aspect-ratio: 16 / 9;
-	padding: var(--margin);
+	padding: var(--MI-margin);
 	border: 1px solid var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	background-color: #000;
 
 	&:hover {
diff --git a/packages/frontend-embed/src/components/EmNote.vue b/packages/frontend-embed/src/components/EmNote.vue
index 7eeeda1797..d4b4827c90 100644
--- a/packages/frontend-embed/src/components/EmNote.vue
+++ b/packages/frontend-embed/src/components/EmNote.vue
@@ -190,7 +190,7 @@ const isDeleted = ref(false);
 			width: calc(100% - 8px);
 			height: calc(100% - 8px);
 			border: dashed 2px var(--MI_THEME-focus);
-			border-radius: var(--radius);
+			border-radius: var(--MI-radius);
 			box-sizing: border-box;
 		}
 	}
@@ -356,7 +356,7 @@ const isDeleted = ref(false);
 	width: 58px;
 	height: 58px;
 	position: sticky !important;
-	top: calc(22px + var(--stickyTop, 0px));
+	top: calc(22px + var(--MI-stickyTop, 0px));
 	left: 0;
 }
 
@@ -377,7 +377,7 @@ const isDeleted = ref(false);
 	width: 100%;
 	margin-top: 14px;
 	position: sticky;
-	bottom: calc(var(--stickyBottom, 0px) + 14px);
+	bottom: calc(var(--MI-stickyBottom, 0px) + 14px);
 }
 
 .showLessLabel {
@@ -430,7 +430,7 @@ const isDeleted = ref(false);
 
 .translation {
 	border: solid 0.5px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	padding: 12px;
 	margin-top: 8px;
 }
@@ -550,7 +550,7 @@ const isDeleted = ref(false);
 		margin: 0 10px 0 0;
 		width: 46px;
 		height: 46px;
-		top: calc(14px + var(--stickyTop, 0px));
+		top: calc(14px + var(--MI-stickyTop, 0px));
 	}
 }
 
diff --git a/packages/frontend-embed/src/components/EmNoteDetailed.vue b/packages/frontend-embed/src/components/EmNoteDetailed.vue
index ccd723d7d2..b39b47c065 100644
--- a/packages/frontend-embed/src/components/EmNoteDetailed.vue
+++ b/packages/frontend-embed/src/components/EmNoteDetailed.vue
@@ -364,7 +364,7 @@ const collapsed = ref(appearNote.value.cw == null && isLong);
 	width: 100%;
 	margin-top: 14px;
 	position: sticky;
-	bottom: calc(var(--stickyBottom, 0px) + 14px);
+	bottom: calc(var(--MI-stickyBottom, 0px) + 14px);
 }
 
 .showLessLabel {
diff --git a/packages/frontend-embed/src/components/EmNoteSimple.vue b/packages/frontend-embed/src/components/EmNoteSimple.vue
index 704a876e59..b9aaf3fa4a 100644
--- a/packages/frontend-embed/src/components/EmNoteSimple.vue
+++ b/packages/frontend-embed/src/components/EmNoteSimple.vue
@@ -53,7 +53,7 @@ const showContent = ref(false);
 	height: 34px;
 	border-radius: 8px;
 	position: sticky !important;
-	top: calc(16px + var(--stickyTop, 0px));
+	top: calc(16px + var(--MI-stickyTop, 0px));
 	left: 0;
 }
 
diff --git a/packages/frontend-embed/src/components/EmSubNoteContent.vue b/packages/frontend-embed/src/components/EmSubNoteContent.vue
index dcaa1ec914..61815ddfd8 100644
--- a/packages/frontend-embed/src/components/EmSubNoteContent.vue
+++ b/packages/frontend-embed/src/components/EmSubNoteContent.vue
@@ -100,7 +100,7 @@ const collapsed = ref(isLong);
 	width: 100%;
 	margin-top: 14px;
 	position: sticky;
-	bottom: calc(var(--stickyBottom, 0px) + 14px);
+	bottom: calc(var(--MI-stickyBottom, 0px) + 14px);
 }
 
 .showLessLabel {
diff --git a/packages/frontend-embed/src/pages/clip.vue b/packages/frontend-embed/src/pages/clip.vue
index d805cb3e4f..f4d4e8cf6f 100644
--- a/packages/frontend-embed/src/pages/clip.vue
+++ b/packages/frontend-embed/src/pages/clip.vue
@@ -100,7 +100,7 @@ function top(ev: MouseEvent) {
 	display: flex;
 	min-width: 0;
 	align-items: center;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 	overflow: hidden;
 
 	.headerClipIconRoot {
diff --git a/packages/frontend-embed/src/pages/tag.vue b/packages/frontend-embed/src/pages/tag.vue
index 78049e4041..4b00ae7c2d 100644
--- a/packages/frontend-embed/src/pages/tag.vue
+++ b/packages/frontend-embed/src/pages/tag.vue
@@ -83,7 +83,7 @@ function top(ev: MouseEvent) {
 	display: flex;
 	min-width: 0;
 	align-items: center;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 	overflow: hidden;
 
 	.headerClipIconRoot {
diff --git a/packages/frontend-embed/src/pages/user-timeline.vue b/packages/frontend-embed/src/pages/user-timeline.vue
index 85e6f52d50..348b1a7622 100644
--- a/packages/frontend-embed/src/pages/user-timeline.vue
+++ b/packages/frontend-embed/src/pages/user-timeline.vue
@@ -117,7 +117,7 @@ function top(ev: MouseEvent) {
 	display: flex;
 	min-width: 0;
 	align-items: center;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 	overflow: hidden;
 
 	.avatarLink {
diff --git a/packages/frontend-embed/src/style.scss b/packages/frontend-embed/src/style.scss
index 1569de01f8..2e43cfd20a 100644
--- a/packages/frontend-embed/src/style.scss
+++ b/packages/frontend-embed/src/style.scss
@@ -7,11 +7,11 @@
  */
 
 :root {
-	--radius: 12px;
-	--marginFull: 14px;
-	--marginHalf: 10px;
+	--MI-radius: 12px;
+	--MI-marginFull: 14px;
+	--MI-marginHalf: 10px;
 
-	--margin: var(--marginFull);
+	--MI-margin: var(--MI-marginFull);
 }
 
 html {
@@ -218,12 +218,12 @@ rt {
 
 ._panel {
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 
 ._margin {
-	margin: var(--margin) 0;
+	margin: var(--MI-margin) 0;
 }
 
 ._gaps_m {
@@ -241,7 +241,7 @@ rt {
 ._gaps {
 	display: flex;
 	flex-direction: column;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 }
 
 ._buttons {
@@ -264,7 +264,7 @@ rt {
 	box-sizing: border-box;
 	text-align: center;
 	border: solid 0.5px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 
 	&:active {
 		border-color: var(--MI_THEME-accent);
@@ -273,14 +273,14 @@ rt {
 
 ._popup {
 	background: var(--MI_THEME-popup);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	contain: content;
 }
 
 ._acrylic {
 	background: var(--MI_THEME-acrylicPanel);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 
 ._fullinfo {
diff --git a/packages/frontend-embed/src/ui.vue b/packages/frontend-embed/src/ui.vue
index 2ed2f58376..4ba5968a91 100644
--- a/packages/frontend-embed/src/ui.vue
+++ b/packages/frontend-embed/src/ui.vue
@@ -95,7 +95,7 @@ onUnmounted(() => {
 	height: auto;
 
 	&.rounded {
-		border-radius: var(--radius);
+		border-radius: var(--MI-radius);
 	}
 
 	&.noBorder {
diff --git a/packages/frontend/src/boot/common.ts b/packages/frontend/src/boot/common.ts
index 52f8fb49e5..1145891b71 100644
--- a/packages/frontend/src/boot/common.ts
+++ b/packages/frontend/src/boot/common.ts
@@ -186,14 +186,14 @@ export async function common(createVue: () => App<Element>) {
 	});
 
 	watch(defaultStore.reactiveState.useBlurEffectForModal, v => {
-		document.documentElement.style.setProperty('--modalBgFilter', v ? 'blur(4px)' : 'none');
+		document.documentElement.style.setProperty('--MI-modalBgFilter', v ? 'blur(4px)' : 'none');
 	}, { immediate: true });
 
 	watch(defaultStore.reactiveState.useBlurEffect, v => {
 		if (v) {
-			document.documentElement.style.removeProperty('--blur');
+			document.documentElement.style.removeProperty('--MI-blur');
 		} else {
-			document.documentElement.style.setProperty('--blur', 'none');
+			document.documentElement.style.setProperty('--MI-blur', 'none');
 		}
 	}, { immediate: true });
 
diff --git a/packages/frontend/src/components/MkAccountMoved.vue b/packages/frontend/src/components/MkAccountMoved.vue
index bd6f8ceb09..0839955d9d 100644
--- a/packages/frontend/src/components/MkAccountMoved.vue
+++ b/packages/frontend/src/components/MkAccountMoved.vue
@@ -34,7 +34,7 @@ misskeyApi('users/show', { userId: props.movedTo }).then(u => user.value = u);
 	font-size: 90%;
 	background: var(--MI_THEME-infoWarnBg);
 	color: var(--MI_THEME-error);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .link {
diff --git a/packages/frontend/src/components/MkAnnouncementDialog.vue b/packages/frontend/src/components/MkAnnouncementDialog.vue
index 488492701e..1adb244c9e 100644
--- a/packages/frontend/src/components/MkAnnouncementDialog.vue
+++ b/packages/frontend/src/components/MkAnnouncementDialog.vue
@@ -84,7 +84,7 @@ onMounted(() => {
 	max-width: 480px;
 	box-sizing: border-box;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .header {
diff --git a/packages/frontend/src/components/MkChart.vue b/packages/frontend/src/components/MkChart.vue
index 57d325b11a..d05f4921f6 100644
--- a/packages/frontend/src/components/MkChart.vue
+++ b/packages/frontend/src/components/MkChart.vue
@@ -863,8 +863,8 @@ onMounted(() => {
 	left: 0;
 	width: 100%;
 	height: 100%;
-	-webkit-backdrop-filter: var(--blur, blur(12px));
-	backdrop-filter: var(--blur, blur(12px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(12px));
+	backdrop-filter: var(--MI-blur, blur(12px));
 	display: flex;
 	justify-content: center;
 	align-items: center;
diff --git a/packages/frontend/src/components/MkContainer.vue b/packages/frontend/src/components/MkContainer.vue
index f2bafb4adf..8ab01d7db8 100644
--- a/packages/frontend/src/components/MkContainer.vue
+++ b/packages/frontend/src/components/MkContainer.vue
@@ -165,7 +165,7 @@ onUnmounted(() => {
 
 .header {
 	position: sticky;
-	top: var(--stickyTop, 0px);
+	top: var(--MI-stickyTop, 0px);
 	left: 0;
 	color: var(--MI_THEME-panelHeaderFg);
 	background: var(--MI_THEME-panelHeaderBg);
@@ -201,7 +201,7 @@ onUnmounted(() => {
 }
 
 .content {
-	--stickyTop: 0px;
+	--MI-stickyTop: 0px;
 
 	&.omitted {
 		position: relative;
diff --git a/packages/frontend/src/components/MkCropperDialog.vue b/packages/frontend/src/components/MkCropperDialog.vue
index a25dc36882..c2a1aaf29a 100644
--- a/packages/frontend/src/components/MkCropperDialog.vue
+++ b/packages/frontend/src/components/MkCropperDialog.vue
@@ -170,8 +170,8 @@ onMounted(() => {
 		display: flex;
 		align-items: center;
 		justify-content: center;
-		-webkit-backdrop-filter: var(--blur, blur(10px));
-		backdrop-filter: var(--blur, blur(10px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(10px));
+		backdrop-filter: var(--MI-blur, blur(10px));
 		background: rgba(0, 0, 0, 0.5);
 	}
 
diff --git a/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue b/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
index 29a435fb1a..949adc6a8e 100644
--- a/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
+++ b/packages/frontend/src/components/MkCustomEmojiDetailedDialog.vue
@@ -86,7 +86,7 @@ function cancel() {
   max-width: 100%;
   height: 40cqh;
   background-image: repeating-linear-gradient(45deg, transparent, transparent 8px, var(--MI_THEME-X5) 8px, var(--MI_THEME-X5) 14px);
-  border-radius: var(--radius);
+  border-radius: var(--MI-radius);
   margin: auto;
   overflow-y: hidden;
 }
@@ -103,6 +103,6 @@ function cancel() {
   padding: 3px 10px;
   background-color: var(--MI_THEME-X5);
   border: solid 1px var(--MI_THEME-divider);
-  border-radius: var(--radius);
+  border-radius: var(--MI-radius);
 }
 </style>
diff --git a/packages/frontend/src/components/MkDateSeparatedList.vue b/packages/frontend/src/components/MkDateSeparatedList.vue
index 0886b7a4f7..a8a32e8bc7 100644
--- a/packages/frontend/src/components/MkDateSeparatedList.vue
+++ b/packages/frontend/src/components/MkDateSeparatedList.vue
@@ -182,7 +182,7 @@ export default defineComponent({
 	}
 
 	&:not(.date-separated-list-nogap) > *:not(:last-child) {
-		margin-bottom: var(--margin);
+		margin-bottom: var(--MI-margin);
 	}
 }
 
diff --git a/packages/frontend/src/components/MkDonation.vue b/packages/frontend/src/components/MkDonation.vue
index ebface5185..0e0da64750 100644
--- a/packages/frontend/src/components/MkDonation.vue
+++ b/packages/frontend/src/components/MkDonation.vue
@@ -65,12 +65,12 @@ function neverShow() {
 .root {
 	position: fixed;
 	z-index: v-bind(zIndex);
-	bottom: var(--margin);
+	bottom: var(--MI-margin);
 	left: 0;
 	right: 0;
 	margin: auto;
 	box-sizing: border-box;
-	width: calc(100% - (var(--margin) * 2));
+	width: calc(100% - (var(--MI-margin) * 2));
 	max-width: 500px;
 	display: flex;
 }
diff --git a/packages/frontend/src/components/MkDrive.vue b/packages/frontend/src/components/MkDrive.vue
index 8bd7ee8324..23883a44e9 100644
--- a/packages/frontend/src/components/MkDrive.vue
+++ b/packages/frontend/src/components/MkDrive.vue
@@ -768,7 +768,7 @@ onBeforeUnmount(() => {
 .main {
 	flex: 1;
 	overflow: auto;
-	padding: var(--margin);
+	padding: var(--MI-margin);
 	user-select: none;
 
 	&.fetching {
diff --git a/packages/frontend/src/components/MkExtensionInstaller.vue b/packages/frontend/src/components/MkExtensionInstaller.vue
index ed29dade7a..b41604b2c3 100644
--- a/packages/frontend/src/components/MkExtensionInstaller.vue
+++ b/packages/frontend/src/components/MkExtensionInstaller.vue
@@ -110,7 +110,7 @@ const emits = defineEmits<{
 
 <style lang="scss" module>
 .extInstallerRoot {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	background: var(--MI_THEME-panel);
 	padding: 1.5rem;
 }
diff --git a/packages/frontend/src/components/MkFoldableSection.vue b/packages/frontend/src/components/MkFoldableSection.vue
index ef1d075360..1717f8fc98 100644
--- a/packages/frontend/src/components/MkFoldableSection.vue
+++ b/packages/frontend/src/components/MkFoldableSection.vue
@@ -118,9 +118,9 @@ onMounted(() => {
 	position: relative;
 	z-index: 10;
 	position: sticky;
-	top: var(--stickyTop, 0px);
-	-webkit-backdrop-filter: var(--blur, blur(8px));
-	backdrop-filter: var(--blur, blur(20px));
+	top: var(--MI-stickyTop, 0px);
+	-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+	backdrop-filter: var(--MI-blur, blur(20px));
 }
 
 .title {
diff --git a/packages/frontend/src/components/MkFolder.vue b/packages/frontend/src/components/MkFolder.vue
index 290d73dd92..5f9500d923 100644
--- a/packages/frontend/src/components/MkFolder.vue
+++ b/packages/frontend/src/components/MkFolder.vue
@@ -145,8 +145,8 @@ onMounted(() => {
 	box-sizing: border-box;
 	padding: 9px 12px 9px 12px;
 	background: var(--MI_THEME-folderHeaderBg);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	border-radius: 6px;
 	transition: border-radius 0.3s;
 
@@ -236,12 +236,12 @@ onMounted(() => {
 .footer {
 	position: sticky !important;
 	z-index: 1;
-	bottom: var(--stickyBottom, 0px);
+	bottom: var(--MI-stickyBottom, 0px);
 	left: 0;
 	padding: 12px;
 	background: var(--MI_THEME-acrylicBg);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background-size: auto auto;
 	background-image: repeating-linear-gradient(135deg, transparent, transparent 5px, var(--MI_THEME-panel) 5px, var(--MI_THEME-panel) 10px);
 	border-radius: 0 0 6px 6px;
diff --git a/packages/frontend/src/components/MkFukidashi.vue b/packages/frontend/src/components/MkFukidashi.vue
index 307cd15dc8..8b1c56fca4 100644
--- a/packages/frontend/src/components/MkFukidashi.vue
+++ b/packages/frontend/src/components/MkFukidashi.vue
@@ -39,7 +39,7 @@ withDefaults(defineProps<{
 
 <style module lang="scss">
 .root {
-	--fukidashi-radius: var(--radius);
+	--fukidashi-radius: var(--MI-radius);
 	--fukidashi-bg: var(--MI_THEME-panel);
 
 	position: relative;
diff --git a/packages/frontend/src/components/MkInfo.vue b/packages/frontend/src/components/MkInfo.vue
index 87c98cf072..90ca1b5a9d 100644
--- a/packages/frontend/src/components/MkInfo.vue
+++ b/packages/frontend/src/components/MkInfo.vue
@@ -38,7 +38,7 @@ function close() {
 	font-size: 90%;
 	background: var(--MI_THEME-infoBg);
 	color: var(--MI_THEME-infoFg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	white-space: pre-wrap;
 
 	&.warn {
diff --git a/packages/frontend/src/components/MkInstanceStats.vue b/packages/frontend/src/components/MkInstanceStats.vue
index da313d4d70..8ccbf61e48 100644
--- a/packages/frontend/src/components/MkInstanceStats.vue
+++ b/packages/frontend/src/components/MkInstanceStats.vue
@@ -257,7 +257,7 @@ onMounted(() => {
 				min-width: 0;
 				position: relative;
 				background: var(--MI_THEME-panel);
-				border-radius: var(--radius);
+				border-radius: var(--MI-radius);
 				padding: 24px;
 				max-height: 300px;
 
diff --git a/packages/frontend/src/components/MkMediaAudio.vue b/packages/frontend/src/components/MkMediaAudio.vue
index 915d67db7f..8b713b2734 100644
--- a/packages/frontend/src/components/MkMediaAudio.vue
+++ b/packages/frontend/src/components/MkMediaAudio.vue
@@ -392,7 +392,7 @@ onDeactivated(() => {
 	container-type: inline-size;
 	position: relative;
 	border: .5px solid var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 
 	&:focus-visible {
@@ -454,7 +454,7 @@ onDeactivated(() => {
 
 	.controlButton {
 		padding: 6px;
-		border-radius: calc(var(--radius) / 2);
+		border-radius: calc(var(--MI-radius) / 2);
 		font-size: 1.05rem;
 
 		&:hover {
diff --git a/packages/frontend/src/components/MkMediaImage.vue b/packages/frontend/src/components/MkMediaImage.vue
index fbd973c196..ec85569df5 100644
--- a/packages/frontend/src/components/MkMediaImage.vue
+++ b/packages/frontend/src/components/MkMediaImage.vue
@@ -226,8 +226,8 @@ html[data-color-scheme=light] .visible {
 	position: absolute;
 	border-radius: 999px;
 	background-color: rgba(0, 0, 0, 0.3);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	color: #fff;
 	font-size: 0.8em;
 	width: 28px;
diff --git a/packages/frontend/src/components/MkMediaList.vue b/packages/frontend/src/components/MkMediaList.vue
index 9fab73d87b..32766f2029 100644
--- a/packages/frontend/src/components/MkMediaList.vue
+++ b/packages/frontend/src/components/MkMediaList.vue
@@ -317,7 +317,7 @@ defineExpose({
 <style lang="scss">
 .pswp__bg {
 	background: var(--MI_THEME-modalBg);
-	backdrop-filter: var(--modalBgFilter);
+	backdrop-filter: var(--MI-modalBgFilter);
 }
 
 .pswp__alt-text-container {
@@ -338,8 +338,8 @@ defineExpose({
 	color: var(--MI_THEME-fg);
 	margin: 0 auto;
 	text-align: center;
-	padding: var(--margin);
-	border-radius: var(--radius);
+	padding: var(--MI-margin);
+	border-radius: var(--MI-radius);
 	max-height: 8em;
 	overflow-y: auto;
 	text-shadow: var(--MI_THEME-bg) 0 0 10px, var(--MI_THEME-bg) 0 0 3px, var(--MI_THEME-bg) 0 0 3px;
diff --git a/packages/frontend/src/components/MkMediaVideo.vue b/packages/frontend/src/components/MkMediaVideo.vue
index 271c66552b..d3a12ca734 100644
--- a/packages/frontend/src/components/MkMediaVideo.vue
+++ b/packages/frontend/src/components/MkMediaVideo.vue
@@ -658,7 +658,7 @@ onDeactivated(() => {
 
 	.controlButton {
 		padding: 6px;
-		border-radius: calc(var(--radius) / 2);
+		border-radius: calc(var(--MI-radius) / 2);
 		transition: background-color .2s ease-in-out;
 		font-size: 1.05rem;
 
diff --git a/packages/frontend/src/components/MkModalWindow.vue b/packages/frontend/src/components/MkModalWindow.vue
index c77611ef12..fe9e1ce088 100644
--- a/packages/frontend/src/components/MkModalWindow.vue
+++ b/packages/frontend/src/components/MkModalWindow.vue
@@ -90,7 +90,7 @@ defineExpose({
 	display: flex;
 	flex-direction: column;
 	contain: content;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 
 	--root-margin: 24px;
 
@@ -106,8 +106,8 @@ defineExpose({
 	display: flex;
 	flex-shrink: 0;
 	background: var(--MI_THEME-windowHeader);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 
 .headerButton {
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index c5f5431dcf..be93b3c529 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -644,7 +644,7 @@ function emitUpdReaction(emoji: string, delta: number) {
 			width: calc(100% - 8px);
 			height: calc(100% - 8px);
 			border: dashed 2px var(--MI_THEME-focus);
-			border-radius: var(--radius);
+			border-radius: var(--MI-radius);
 			box-sizing: border-box;
 		}
 	}
@@ -810,7 +810,7 @@ function emitUpdReaction(emoji: string, delta: number) {
 	width: 58px;
 	height: 58px;
 	position: sticky !important;
-	top: calc(22px + var(--stickyTop, 0px));
+	top: calc(22px + var(--MI-stickyTop, 0px));
 	left: 0;
 }
 
@@ -831,7 +831,7 @@ function emitUpdReaction(emoji: string, delta: number) {
 	width: 100%;
 	margin-top: 14px;
 	position: sticky;
-	bottom: calc(var(--stickyBottom, 0px) + 14px);
+	bottom: calc(var(--MI-stickyBottom, 0px) + 14px);
 }
 
 .showLessLabel {
@@ -884,7 +884,7 @@ function emitUpdReaction(emoji: string, delta: number) {
 
 .translation {
 	border: solid 0.5px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	padding: 12px;
 	margin-top: 8px;
 }
@@ -998,7 +998,7 @@ function emitUpdReaction(emoji: string, delta: number) {
 		margin: 0 10px 0 0;
 		width: 46px;
 		height: 46px;
-		top: calc(14px + var(--stickyTop, 0px));
+		top: calc(14px + var(--MI-stickyTop, 0px));
 	}
 }
 
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index 8a7a98d23f..6d53685651 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -570,7 +570,7 @@ function loadConversation() {
 			width: calc(100% - 8px);
 			height: calc(100% - 8px);
 			border: dashed 2px var(--MI_THEME-focus);
-			border-radius: var(--radius);
+			border-radius: var(--MI-radius);
 			box-sizing: border-box;
 		}
 	}
@@ -711,7 +711,7 @@ function loadConversation() {
 
 .translation {
 	border: solid 0.5px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	padding: 12px;
 	margin-top: 8px;
 }
diff --git a/packages/frontend/src/components/MkNoteSimple.vue b/packages/frontend/src/components/MkNoteSimple.vue
index c3f3c42b42..e684cf2a30 100644
--- a/packages/frontend/src/components/MkNoteSimple.vue
+++ b/packages/frontend/src/components/MkNoteSimple.vue
@@ -51,7 +51,7 @@ const showContent = ref(false);
 	height: 34px;
 	border-radius: 8px;
 	position: sticky !important;
-	top: calc(16px + var(--stickyTop, 0px));
+	top: calc(16px + var(--MI-stickyTop, 0px));
 	left: 0;
 }
 
diff --git a/packages/frontend/src/components/MkNotes.vue b/packages/frontend/src/components/MkNotes.vue
index cb240160cf..1c17c6b691 100644
--- a/packages/frontend/src/components/MkNotes.vue
+++ b/packages/frontend/src/components/MkNotes.vue
@@ -66,7 +66,7 @@ defineExpose({
 
 			.note {
 				background: var(--MI_THEME-panel);
-				border-radius: var(--radius);
+				border-radius: var(--MI-radius);
 			}
 		}
 	}
diff --git a/packages/frontend/src/components/MkOmit.vue b/packages/frontend/src/components/MkOmit.vue
index 38c8664575..a05176e2f4 100644
--- a/packages/frontend/src/components/MkOmit.vue
+++ b/packages/frontend/src/components/MkOmit.vue
@@ -47,7 +47,7 @@ onUnmounted(() => {
 
 <style lang="scss" module>
 .content {
-	--stickyTop: 0px;
+	--MI-stickyTop: 0px;
 
 	&.omitted {
 		position: relative;
diff --git a/packages/frontend/src/components/MkPagePreview.vue b/packages/frontend/src/components/MkPagePreview.vue
index b5281d8a3d..19579cc4cc 100644
--- a/packages/frontend/src/components/MkPagePreview.vue
+++ b/packages/frontend/src/components/MkPagePreview.vue
@@ -42,7 +42,7 @@ const props = defineProps<{
 .eyeCatchingImageRoot {
 	width: 100%;
 	height: 200px;
-	border-radius: var(--radius) var(--radius) 0 0;
+	border-radius: var(--MI-radius) var(--MI-radius) 0 0;
 	overflow: hidden;
 }
 </style>
@@ -67,7 +67,7 @@ const props = defineProps<{
 			left: 0;
 			width: 100%;
 			height: 100%;
-			border-radius: var(--radius);
+			border-radius: var(--MI-radius);
 			pointer-events: none;
 			box-shadow: inset 0 0 0 2px var(--MI_THEME-focus);
 		}
@@ -75,14 +75,14 @@ const props = defineProps<{
 
 	> .thumbnail {
 		& + article {
-			border-radius: 0 0 var(--radius) var(--radius);
+			border-radius: 0 0 var(--MI-radius) var(--MI-radius);
 		}
 	}
 
 	> article {
 		background-color: var(--MI_THEME-panel);
 		padding: 16px;
-		border-radius: var(--radius);
+		border-radius: var(--MI-radius);
 
 		> header {
 			margin-bottom: 8px;
diff --git a/packages/frontend/src/components/MkPageWindow.vue b/packages/frontend/src/components/MkPageWindow.vue
index 421051f73d..4777da2848 100644
--- a/packages/frontend/src/components/MkPageWindow.vue
+++ b/packages/frontend/src/components/MkPageWindow.vue
@@ -181,6 +181,6 @@ defineExpose({
 	min-height: 100%;
 	background: var(--MI_THEME-bg);
 
-	--margin: var(--marginHalf);
+	--MI-margin: var(--MI-marginHalf);
 }
 </style>
diff --git a/packages/frontend/src/components/MkRemoteCaution.vue b/packages/frontend/src/components/MkRemoteCaution.vue
index 3ffb50dbd9..a56a4b1671 100644
--- a/packages/frontend/src/components/MkRemoteCaution.vue
+++ b/packages/frontend/src/components/MkRemoteCaution.vue
@@ -21,7 +21,7 @@ defineProps<{
 	padding: 16px;
 	background: var(--MI_THEME-infoWarnBg);
 	color: var(--MI_THEME-infoWarnFg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 
diff --git a/packages/frontend/src/components/MkSigninDialog.vue b/packages/frontend/src/components/MkSigninDialog.vue
index 51dea960aa..676a336ec7 100644
--- a/packages/frontend/src/components/MkSigninDialog.vue
+++ b/packages/frontend/src/components/MkSigninDialog.vue
@@ -70,7 +70,7 @@ function onLogin(res: Misskey.entities.SigninFlowResponse & { finished: true })
 	max-height: 450px;
 	box-sizing: border-box;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .header {
@@ -83,7 +83,7 @@ function onLogin(res: Misskey.entities.SigninFlowResponse & { finished: true })
 	display: flex;
 	align-items: center;
 	font-weight: bold;
-	backdrop-filter: var(--blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background: var(--MI_THEME-acrylicBg);
 	z-index: 1;
 }
diff --git a/packages/frontend/src/components/MkSignupDialog.rules.vue b/packages/frontend/src/components/MkSignupDialog.rules.vue
index 1470f1e57e..e2a06dd91f 100644
--- a/packages/frontend/src/components/MkSignupDialog.rules.vue
+++ b/packages/frontend/src/components/MkSignupDialog.rules.vue
@@ -170,7 +170,7 @@ async function updateAgreeNote(v: boolean) {
 		flex-shrink: 0;
 		display: flex;
 		position: sticky;
-		top: calc(var(--stickyTop, 0px) + 8px);
+		top: calc(var(--MI-stickyTop, 0px) + 8px);
 		counter-increment: item;
 		content: counter(item);
 		width: 32px;
diff --git a/packages/frontend/src/components/MkSourceCodeAvailablePopup.vue b/packages/frontend/src/components/MkSourceCodeAvailablePopup.vue
index 438dd7e3a5..4c197ed43e 100644
--- a/packages/frontend/src/components/MkSourceCodeAvailablePopup.vue
+++ b/packages/frontend/src/components/MkSourceCodeAvailablePopup.vue
@@ -63,12 +63,12 @@ function close() {
 .root {
 	position: fixed;
 	z-index: v-bind(zIndex);
-	bottom: var(--margin);
+	bottom: var(--MI-margin);
 	left: 0;
 	right: 0;
 	margin: auto;
 	box-sizing: border-box;
-	width: calc(100% - (var(--margin) * 2));
+	width: calc(100% - (var(--MI-margin) * 2));
 	max-width: 500px;
 	display: flex;
 }
diff --git a/packages/frontend/src/components/MkSubNoteContent.vue b/packages/frontend/src/components/MkSubNoteContent.vue
index a36765b73c..9e02884b8c 100644
--- a/packages/frontend/src/components/MkSubNoteContent.vue
+++ b/packages/frontend/src/components/MkSubNoteContent.vue
@@ -97,7 +97,7 @@ const collapsed = ref(isLong);
 	width: 100%;
 	margin-top: 14px;
 	position: sticky;
-	bottom: calc(var(--stickyBottom, 0px) + 14px);
+	bottom: calc(var(--MI-stickyBottom, 0px) + 14px);
 }
 
 .showLessLabel {
diff --git a/packages/frontend/src/components/MkSystemWebhookEditor.vue b/packages/frontend/src/components/MkSystemWebhookEditor.vue
index 23130d7f9f..a00cf0d9d3 100644
--- a/packages/frontend/src/components/MkSystemWebhookEditor.vue
+++ b/packages/frontend/src/components/MkSystemWebhookEditor.vue
@@ -263,8 +263,8 @@ onMounted(async () => {
 	padding: 12px;
 	border-top: solid 0.5px var(--MI_THEME-divider);
 	background: var(--MI_THEME-acrylicBg);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 
 .switchBox {
diff --git a/packages/frontend/src/components/MkTextarea.vue b/packages/frontend/src/components/MkTextarea.vue
index 0139712232..d1a6e1ebbf 100644
--- a/packages/frontend/src/components/MkTextarea.vue
+++ b/packages/frontend/src/components/MkTextarea.vue
@@ -226,7 +226,7 @@ onUnmounted(() => {
 
 .mfmPreview {
   padding: 12px;
-  border-radius: var(--radius);
+  border-radius: var(--MI-radius);
   box-sizing: border-box;
   min-height: 130px;
 	pointer-events: none;
diff --git a/packages/frontend/src/components/MkTokenGenerateWindow.vue b/packages/frontend/src/components/MkTokenGenerateWindow.vue
index 63dc93ae27..a7bc3f37f1 100644
--- a/packages/frontend/src/components/MkTokenGenerateWindow.vue
+++ b/packages/frontend/src/components/MkTokenGenerateWindow.vue
@@ -137,7 +137,7 @@ function enableAll(): void {
 	margin: 8px -6px 0;
 	padding: 24px 6px 6px;
 	border: 2px solid var(--MI_THEME-error);
-	border-radius: calc(var(--radius) / 2);
+	border-radius: calc(var(--MI-radius) / 2);
 }
 
 .adminPermissionsHeader {
diff --git a/packages/frontend/src/components/MkTutorialDialog.Note.vue b/packages/frontend/src/components/MkTutorialDialog.Note.vue
index 5644907434..b26a01737e 100644
--- a/packages/frontend/src/components/MkTutorialDialog.Note.vue
+++ b/packages/frontend/src/components/MkTutorialDialog.Note.vue
@@ -105,7 +105,7 @@ function removeReaction(emoji) {
 
 <style lang="scss" module>
 .exampleNoteRoot {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	border: var(--MI_THEME-panelBorder);
 	background: var(--MI_THEME-panel);
 }
diff --git a/packages/frontend/src/components/MkTutorialDialog.PostNote.vue b/packages/frontend/src/components/MkTutorialDialog.PostNote.vue
index 7044e05804..6559307a94 100644
--- a/packages/frontend/src/components/MkTutorialDialog.PostNote.vue
+++ b/packages/frontend/src/components/MkTutorialDialog.PostNote.vue
@@ -81,7 +81,7 @@ const exampleCWNote = reactive<Misskey.entities.Note>({
 <style lang="scss" module>
 .exampleRoot {
 	max-width: none!important;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	border: var(--MI_THEME-panelBorder);
 	background: var(--MI_THEME-panel);
 }
diff --git a/packages/frontend/src/components/MkTutorialDialog.Sensitive.vue b/packages/frontend/src/components/MkTutorialDialog.Sensitive.vue
index ce06b97b6b..f7b60fbc45 100644
--- a/packages/frontend/src/components/MkTutorialDialog.Sensitive.vue
+++ b/packages/frontend/src/components/MkTutorialDialog.Sensitive.vue
@@ -91,7 +91,7 @@ const exampleNote = reactive<Misskey.entities.Note>({
 
 <style lang="scss" module>
 .exampleRoot {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	border: var(--MI_THEME-panelBorder);
 	background: var(--MI_THEME-panel);
 }
diff --git a/packages/frontend/src/components/MkTutorialDialog.Timeline.vue b/packages/frontend/src/components/MkTutorialDialog.Timeline.vue
index 9e33afbb53..b203110ef0 100644
--- a/packages/frontend/src/components/MkTutorialDialog.Timeline.vue
+++ b/packages/frontend/src/components/MkTutorialDialog.Timeline.vue
@@ -31,7 +31,7 @@ import { basicTimelineIconClass, basicTimelineTypes } from '@/timelines.js';
 
 <style lang="scss" module>
 .exampleNoteRoot {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	border: var(--MI_THEME-panelBorder);
 	background: var(--MI_THEME-panel);
 }
diff --git a/packages/frontend/src/components/MkUpdated.vue b/packages/frontend/src/components/MkUpdated.vue
index fe50ab8cff..c937b4ce59 100644
--- a/packages/frontend/src/components/MkUpdated.vue
+++ b/packages/frontend/src/components/MkUpdated.vue
@@ -47,7 +47,7 @@ onMounted(() => {
 	box-sizing: border-box;
 	text-align: center;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .title {
diff --git a/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue b/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue
index 26ba108244..7a2b5f5ddc 100644
--- a/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue
+++ b/packages/frontend/src/components/MkUserAnnouncementEditDialog.vue
@@ -142,7 +142,7 @@ async function del() {
 	left: 0;
 	padding: 12px;
 	border-top: solid 0.5px var(--MI_THEME-divider);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/components/MkUserList.vue b/packages/frontend/src/components/MkUserList.vue
index 17a9254d01..8b4afd7994 100644
--- a/packages/frontend/src/components/MkUserList.vue
+++ b/packages/frontend/src/components/MkUserList.vue
@@ -39,6 +39,6 @@ const props = withDefaults(defineProps<{
 .root {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
-	grid-gap: var(--margin);
+	grid-gap: var(--MI-margin);
 }
 </style>
diff --git a/packages/frontend/src/components/MkUserSetupDialog.Follow.vue b/packages/frontend/src/components/MkUserSetupDialog.Follow.vue
index 1524ea0ec9..5153c06139 100644
--- a/packages/frontend/src/components/MkUserSetupDialog.Follow.vue
+++ b/packages/frontend/src/components/MkUserSetupDialog.Follow.vue
@@ -62,7 +62,7 @@ const popularUsers: Paging = {
 .users {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
-	grid-gap: var(--margin);
+	grid-gap: var(--MI-margin);
 	justify-content: center;
 }
 </style>
diff --git a/packages/frontend/src/components/MkVisitorDashboard.vue b/packages/frontend/src/components/MkVisitorDashboard.vue
index 91e2898798..97c765d81c 100644
--- a/packages/frontend/src/components/MkVisitorDashboard.vue
+++ b/packages/frontend/src/components/MkVisitorDashboard.vue
@@ -107,7 +107,7 @@ function showMenu(ev: MouseEvent) {
 .panel {
 	position: relative;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	box-shadow: 0 12px 32px rgb(0 0 0 / 25%);
 }
 
diff --git a/packages/frontend/src/components/MkWaitingDialog.vue b/packages/frontend/src/components/MkWaitingDialog.vue
index 62e187f172..34fa6b0723 100644
--- a/packages/frontend/src/components/MkWaitingDialog.vue
+++ b/packages/frontend/src/components/MkWaitingDialog.vue
@@ -48,7 +48,7 @@ watch(() => props.showing, () => {
 	box-sizing: border-box;
 	text-align: center;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	width: 250px;
 
 	&.iconOnly {
diff --git a/packages/frontend/src/components/MkWidgets.vue b/packages/frontend/src/components/MkWidgets.vue
index 0c51cfa9ce..492dd4cdc0 100644
--- a/packages/frontend/src/components/MkWidgets.vue
+++ b/packages/frontend/src/components/MkWidgets.vue
@@ -7,7 +7,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 <div :class="$style.root">
 	<template v-if="edit">
 		<header :class="$style.editHeader">
-			<MkSelect v-model="widgetAdderSelected" style="margin-bottom: var(--margin)" data-cy-widget-select>
+			<MkSelect v-model="widgetAdderSelected" style="margin-bottom: var(--MI-margin)" data-cy-widget-select>
 				<template #label>{{ i18n.ts.selectWidget }}</template>
 				<option v-for="widget in widgetDefs" :key="widget" :value="widget">{{ i18n.ts._widgets[widget] }}</option>
 			</MkSelect>
@@ -123,7 +123,7 @@ function onContextmenu(widget: Widget, ev: MouseEvent) {
 
 .widget {
 	contain: content;
-	margin: var(--margin) 0;
+	margin: var(--MI-margin) 0;
 
 	&:first-of-type {
 		margin-top: 0;
diff --git a/packages/frontend/src/components/MkWindow.vue b/packages/frontend/src/components/MkWindow.vue
index dd92952a35..a5f7a2e9e5 100644
--- a/packages/frontend/src/components/MkWindow.vue
+++ b/packages/frontend/src/components/MkWindow.vue
@@ -502,7 +502,7 @@ defineExpose({
 	contain: content;
 	width: 100%;
 	height: 100%;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .header {
@@ -515,8 +515,8 @@ defineExpose({
 	user-select: none;
 	height: var(--height);
 	background: var(--MI_THEME-windowHeader);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	//border-bottom: solid 1px var(--MI_THEME-divider);
 	font-size: 90%;
 	font-weight: bold;
diff --git a/packages/frontend/src/components/global/MkPageHeader.vue b/packages/frontend/src/components/global/MkPageHeader.vue
index e032313b02..aa4be69b2c 100644
--- a/packages/frontend/src/components/global/MkPageHeader.vue
+++ b/packages/frontend/src/components/global/MkPageHeader.vue
@@ -130,8 +130,8 @@ onUnmounted(() => {
 
 <style lang="scss" module>
 .root {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	border-bottom: solid 0.5px var(--MI_THEME-divider);
 	width: 100%;
 }
@@ -145,7 +145,7 @@ onUnmounted(() => {
 .upper {
 	--height: 50px;
 	display: flex;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 	height: var(--height);
 
 	.tabs:first-child {
diff --git a/packages/frontend/src/components/global/MkStickyContainer.vue b/packages/frontend/src/components/global/MkStickyContainer.vue
index 72993991ce..cb21dafd2b 100644
--- a/packages/frontend/src/components/global/MkStickyContainer.vue
+++ b/packages/frontend/src/components/global/MkStickyContainer.vue
@@ -69,28 +69,28 @@ onMounted(() => {
 
 	watch(childStickyTop, () => {
 		if (bodyEl.value == null) return;
-		bodyEl.value.style.setProperty('--stickyTop', `${childStickyTop.value}px`);
+		bodyEl.value.style.setProperty('--MI-stickyTop', `${childStickyTop.value}px`);
 	}, {
 		immediate: true,
 	});
 
 	watch(childStickyBottom, () => {
 		if (bodyEl.value == null) return;
-		bodyEl.value.style.setProperty('--stickyBottom', `${childStickyBottom.value}px`);
+		bodyEl.value.style.setProperty('--MI-stickyBottom', `${childStickyBottom.value}px`);
 	}, {
 		immediate: true,
 	});
 
 	if (headerEl.value != null) {
 		headerEl.value.style.position = 'sticky';
-		headerEl.value.style.top = 'var(--stickyTop, 0)';
+		headerEl.value.style.top = 'var(--MI-stickyTop, 0)';
 		headerEl.value.style.zIndex = '1';
 		observer.observe(headerEl.value);
 	}
 
 	if (footerEl.value != null) {
 		footerEl.value.style.position = 'sticky';
-		footerEl.value.style.bottom = 'var(--stickyBottom, 0)';
+		footerEl.value.style.bottom = 'var(--MI-stickyBottom, 0)';
 		footerEl.value.style.zIndex = '1';
 		observer.observe(footerEl.value);
 	}
diff --git a/packages/frontend/src/components/page/page.dynamic.vue b/packages/frontend/src/components/page/page.dynamic.vue
index c355cd07d7..c2449931c1 100644
--- a/packages/frontend/src/components/page/page.dynamic.vue
+++ b/packages/frontend/src/components/page/page.dynamic.vue
@@ -28,8 +28,8 @@ const props = defineProps<{
 <style lang="scss" module>
 .root {
 	border: 1px solid var(--MI_THEME-divider);
-	border-radius: var(--radius);
-	padding: var(--margin);
+	border-radius: var(--MI-radius);
+	padding: var(--MI-margin);
 	text-align: center;
 }
 
diff --git a/packages/frontend/src/components/page/page.image.vue b/packages/frontend/src/components/page/page.image.vue
index c4bedcdb54..69443ce7dd 100644
--- a/packages/frontend/src/components/page/page.image.vue
+++ b/packages/frontend/src/components/page/page.image.vue
@@ -29,7 +29,7 @@ onMounted(() => {
 <style lang="scss" module>
 .root {
 	border: 1px solid var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: hidden;
 }
 .mediaList {
diff --git a/packages/frontend/src/components/page/page.note.vue b/packages/frontend/src/components/page/page.note.vue
index 4a1be9b772..84436e7adb 100644
--- a/packages/frontend/src/components/page/page.note.vue
+++ b/packages/frontend/src/components/page/page.note.vue
@@ -36,6 +36,6 @@ onMounted(() => {
 <style lang="scss" module>
 .root {
 	border: 1px solid var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 </style>
diff --git a/packages/frontend/src/pages/about-misskey.vue b/packages/frontend/src/pages/about-misskey.vue
index a66d580db9..891489f1a1 100644
--- a/packages/frontend/src/pages/about-misskey.vue
+++ b/packages/frontend/src/pages/about-misskey.vue
@@ -441,7 +441,7 @@ definePageMetadata(() => ({
 .znqjceqz {
 	> .about {
 		position: relative;
-		border-radius: var(--radius);
+		border-radius: var(--MI-radius);
 
 		> .treasure {
 			position: absolute;
diff --git a/packages/frontend/src/pages/about.federation.vue b/packages/frontend/src/pages/about.federation.vue
index b3776c67e6..0a7cb8a50b 100644
--- a/packages/frontend/src/pages/about.federation.vue
+++ b/packages/frontend/src/pages/about.federation.vue
@@ -10,7 +10,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<template #prefix><i class="ti ti-search"></i></template>
 			<template #label>{{ i18n.ts.host }}</template>
 		</MkInput>
-		<FormSplit style="margin-top: var(--margin);">
+		<FormSplit style="margin-top: var(--MI-margin);">
 			<MkSelect v-model="state">
 				<template #label>{{ i18n.ts.state }}</template>
 				<option value="all">{{ i18n.ts.all }}</option>
diff --git a/packages/frontend/src/pages/about.overview.vue b/packages/frontend/src/pages/about.overview.vue
index c19757f88f..e5e57c05c4 100644
--- a/packages/frontend/src/pages/about.overview.vue
+++ b/packages/frontend/src/pages/about.overview.vue
@@ -183,7 +183,7 @@ const initStats = () => misskeyApi('stats', {});
 		flex-shrink: 0;
 		display: flex;
 		position: sticky;
-		top: calc(var(--stickyTop, 0px) + 8px);
+		top: calc(var(--MI-stickyTop, 0px) + 8px);
 		counter-increment: item;
 		content: counter(item);
 		width: 32px;
diff --git a/packages/frontend/src/pages/admin/RolesEditorFormula.vue b/packages/frontend/src/pages/admin/RolesEditorFormula.vue
index dc2862d225..4762ef3f97 100644
--- a/packages/frontend/src/pages/admin/RolesEditorFormula.vue
+++ b/packages/frontend/src/pages/admin/RolesEditorFormula.vue
@@ -156,7 +156,7 @@ function removeSelf() {
 
 .item {
 	border: solid 2px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	padding: 12px;
 
 	&:hover {
diff --git a/packages/frontend/src/pages/admin/_header_.vue b/packages/frontend/src/pages/admin/_header_.vue
index 36fe483771..9b1bf51f58 100644
--- a/packages/frontend/src/pages/admin/_header_.vue
+++ b/packages/frontend/src/pages/admin/_header_.vue
@@ -156,8 +156,8 @@ onUnmounted(() => {
 	--height: 60px;
 	display: flex;
 	width: 100%;
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 
 	> .buttons {
 		--margin: 8px;
diff --git a/packages/frontend/src/pages/admin/abuse-report/notification-recipient.editor.vue b/packages/frontend/src/pages/admin/abuse-report/notification-recipient.editor.vue
index f70b46b84a..eef24afd32 100644
--- a/packages/frontend/src/pages/admin/abuse-report/notification-recipient.editor.vue
+++ b/packages/frontend/src/pages/admin/abuse-report/notification-recipient.editor.vue
@@ -296,8 +296,8 @@ onMounted(async () => {
 	padding: 12px;
 	border-top: solid 0.5px var(--MI_THEME-divider);
 	background: var(--MI_THEME-acrylicBg);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 
 .systemWebhook {
diff --git a/packages/frontend/src/pages/admin/ads.vue b/packages/frontend/src/pages/admin/ads.vue
index 6c8901b10b..0d67359e47 100644
--- a/packages/frontend/src/pages/admin/ads.vue
+++ b/packages/frontend/src/pages/admin/ads.vue
@@ -266,7 +266,7 @@ definePageMetadata(() => ({
 	padding: 32px;
 
 	&:not(:last-child) {
-		margin-bottom: var(--margin);
+		margin-bottom: var(--MI-margin);
 	}
 }
 .input {
diff --git a/packages/frontend/src/pages/admin/branding.vue b/packages/frontend/src/pages/admin/branding.vue
index 947dde767e..95f82c1f24 100644
--- a/packages/frontend/src/pages/admin/branding.vue
+++ b/packages/frontend/src/pages/admin/branding.vue
@@ -183,7 +183,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/admin/email-settings.vue b/packages/frontend/src/pages/admin/email-settings.vue
index 4a858887f3..5b60e67dac 100644
--- a/packages/frontend/src/pages/admin/email-settings.vue
+++ b/packages/frontend/src/pages/admin/email-settings.vue
@@ -138,7 +138,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/admin/federation.vue b/packages/frontend/src/pages/admin/federation.vue
index debf684c9b..e7b9fd8621 100644
--- a/packages/frontend/src/pages/admin/federation.vue
+++ b/packages/frontend/src/pages/admin/federation.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #prefix><i class="ti ti-search"></i></template>
 						<template #label>{{ i18n.ts.host }}</template>
 					</MkInput>
-					<FormSplit style="margin-top: var(--margin);">
+					<FormSplit style="margin-top: var(--MI-margin);">
 						<MkSelect v-model="state">
 							<template #label>{{ i18n.ts.state }}</template>
 							<option value="all">{{ i18n.ts.all }}</option>
diff --git a/packages/frontend/src/pages/admin/files.vue b/packages/frontend/src/pages/admin/files.vue
index 5132b85c64..4cc859227f 100644
--- a/packages/frontend/src/pages/admin/files.vue
+++ b/packages/frontend/src/pages/admin/files.vue
@@ -9,7 +9,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<template #header><XHeader :actions="headerActions"/></template>
 		<MkSpacer :contentMax="900">
 			<div class="_gaps">
-				<div class="inputs" style="display: flex; gap: var(--margin); flex-wrap: wrap;">
+				<div class="inputs" style="display: flex; gap: var(--MI-margin); flex-wrap: wrap;">
 					<MkSelect v-model="origin" style="margin: 0; flex: 1;">
 						<template #label>{{ i18n.ts.instance }}</template>
 						<option value="combined">{{ i18n.ts.all }}</option>
@@ -20,7 +20,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #label>{{ i18n.ts.host }}</template>
 					</MkInput>
 				</div>
-				<div class="inputs" style="display: flex; gap: var(--margin); flex-wrap: wrap;">
+				<div class="inputs" style="display: flex; gap: var(--MI-margin); flex-wrap: wrap;">
 					<MkInput v-model="userId" :debounce="true" type="search" style="margin: 0; flex: 1;">
 						<template #label>User ID</template>
 					</MkInput>
diff --git a/packages/frontend/src/pages/admin/modlog.ModLog.vue b/packages/frontend/src/pages/admin/modlog.ModLog.vue
index ddbd293c3a..1e144394fb 100644
--- a/packages/frontend/src/pages/admin/modlog.ModLog.vue
+++ b/packages/frontend/src/pages/admin/modlog.ModLog.vue
@@ -89,7 +89,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	</template>
 
 	<div>
-		<div style="display: flex; gap: var(--margin); flex-wrap: wrap;">
+		<div style="display: flex; gap: var(--MI-margin); flex-wrap: wrap;">
 			<div style="flex: 1;">{{ i18n.ts.moderator }}: <MkA :to="`/admin/user/${log.userId}`" class="_link">@{{ log.user?.username }}</MkA></div>
 			<div style="flex: 1;">{{ i18n.ts.dateAndTime }}: <MkTime :time="log.createdAt" mode="detail"/></div>
 		</div>
diff --git a/packages/frontend/src/pages/admin/modlog.vue b/packages/frontend/src/pages/admin/modlog.vue
index 38610e7e92..c9eaf07531 100644
--- a/packages/frontend/src/pages/admin/modlog.vue
+++ b/packages/frontend/src/pages/admin/modlog.vue
@@ -8,7 +8,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<template #header><XHeader :actions="headerActions" :tabs="headerTabs"/></template>
 	<MkSpacer :contentMax="900">
 		<div>
-			<div style="display: flex; gap: var(--margin); flex-wrap: wrap;">
+			<div style="display: flex; gap: var(--MI-margin); flex-wrap: wrap;">
 				<MkSelect v-model="type" style="margin: 0; flex: 1;">
 					<template #label>{{ i18n.ts.type }}</template>
 					<option :value="null">{{ i18n.ts.all }}</option>
@@ -19,8 +19,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 				</MkInput>
 			</div>
 
-			<MkPagination v-slot="{items}" ref="logs" :pagination="pagination" style="margin-top: var(--margin);">
-				<MkDateSeparatedList v-slot="{ item }" :items="items" :noGap="false" style="--margin: 8px;">
+			<MkPagination v-slot="{items}" ref="logs" :pagination="pagination" style="margin-top: var(--MI-margin);">
+				<MkDateSeparatedList v-slot="{ item }" :items="items" :noGap="false" style="--MI-margin: 8px;">
 					<XModLog :key="item.id" :log="item"/>
 				</MkDateSeparatedList>
 			</MkPagination>
diff --git a/packages/frontend/src/pages/admin/object-storage.vue b/packages/frontend/src/pages/admin/object-storage.vue
index 5fddb715cd..d5a664934c 100644
--- a/packages/frontend/src/pages/admin/object-storage.vue
+++ b/packages/frontend/src/pages/admin/object-storage.vue
@@ -157,7 +157,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/admin/overview.queue.vue b/packages/frontend/src/pages/admin/overview.queue.vue
index 98d1b8d7f6..de6b254412 100644
--- a/packages/frontend/src/pages/admin/overview.queue.vue
+++ b/packages/frontend/src/pages/admin/overview.queue.vue
@@ -120,7 +120,7 @@ onUnmounted(() => {
 				min-width: 0;
 				padding: 16px;
 				background: var(--MI_THEME-panel);
-				border-radius: var(--radius);
+				border-radius: var(--MI-radius);
 
 				> .title {
 					font-size: 0.85em;
diff --git a/packages/frontend/src/pages/admin/queue.chart.vue b/packages/frontend/src/pages/admin/queue.chart.vue
index 700865c91c..7c171ba0e1 100644
--- a/packages/frontend/src/pages/admin/queue.chart.vue
+++ b/packages/frontend/src/pages/admin/queue.chart.vue
@@ -136,7 +136,7 @@ onUnmounted(() => {
 	min-width: 0;
 	padding: 16px;
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .chartTitle {
diff --git a/packages/frontend/src/pages/admin/roles.edit.vue b/packages/frontend/src/pages/admin/roles.edit.vue
index 60f06d50ba..2b4006c3f7 100644
--- a/packages/frontend/src/pages/admin/roles.edit.vue
+++ b/packages/frontend/src/pages/admin/roles.edit.vue
@@ -95,7 +95,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/antenna-timeline.vue b/packages/frontend/src/pages/antenna-timeline.vue
index 167f402931..a01bafd996 100644
--- a/packages/frontend/src/pages/antenna-timeline.vue
+++ b/packages/frontend/src/pages/antenna-timeline.vue
@@ -97,26 +97,26 @@ definePageMetadata(() => ({
 <style lang="scss" module>
 .new {
 	position: sticky;
-	top: calc(var(--stickyTop, 0px) + 16px);
+	top: calc(var(--MI-stickyTop, 0px) + 16px);
 	z-index: 1000;
 	width: 100%;
 	margin: calc(-0.675em - 8px) 0;
 
 	&:first-child {
-		margin-top: calc(-0.675em - 8px - var(--margin));
+		margin-top: calc(-0.675em - 8px - var(--MI-margin));
 	}
 }
 
 .newButton {
 	display: block;
-	margin: var(--margin) auto 0 auto;
+	margin: var(--MI-margin) auto 0 auto;
 	padding: 8px 16px;
 	border-radius: 32px;
 }
 
 .tl {
 	background: var(--MI_THEME-bg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 </style>
diff --git a/packages/frontend/src/pages/avatar-decorations.vue b/packages/frontend/src/pages/avatar-decorations.vue
index b377314856..b97e7c0eea 100644
--- a/packages/frontend/src/pages/avatar-decorations.vue
+++ b/packages/frontend/src/pages/avatar-decorations.vue
@@ -124,7 +124,7 @@ definePageMetadata(() => ({
 	display: grid;
 	grid-template-columns: 1fr;
 	grid-template-rows: auto auto;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 }
 
 .preview {
@@ -132,7 +132,7 @@ definePageMetadata(() => ({
 	place-items: center;
 	grid-template-columns: 1fr 1fr;
 	grid-template-rows: 1fr;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 }
 
 .previewItem {
@@ -142,7 +142,7 @@ definePageMetadata(() => ({
 	display: flex;
 	align-items: center;
 	justify-content: center;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 
 	&.light {
 		background: #eee;
@@ -157,7 +157,7 @@ definePageMetadata(() => ({
 	.editorWrapper {
 		grid-template-columns: 200px 1fr;
 		grid-template-rows: 1fr;
-		gap: calc(var(--margin) * 2);
+		gap: calc(var(--MI-margin) * 2);
 	}
 
 	.preview {
diff --git a/packages/frontend/src/pages/channel.vue b/packages/frontend/src/pages/channel.vue
index c8b04ca350..b61054118d 100644
--- a/packages/frontend/src/pages/channel.vue
+++ b/packages/frontend/src/pages/channel.vue
@@ -269,12 +269,12 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .main {
-	min-height: calc(100cqh - (var(--stickyTop, 0px) + var(--stickyBottom, 0px)));
+	min-height: calc(100cqh - (var(--MI-stickyTop, 0px) + var(--MI-stickyBottom, 0px)));
 }
 
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background: var(--MI_THEME-acrylicBg);
 	border-top: solid 0.5px var(--MI_THEME-divider);
 }
diff --git a/packages/frontend/src/pages/custom-emojis-manager.vue b/packages/frontend/src/pages/custom-emojis-manager.vue
index 6d0b3d8d2e..1e416e22d3 100644
--- a/packages/frontend/src/pages/custom-emojis-manager.vue
+++ b/packages/frontend/src/pages/custom-emojis-manager.vue
@@ -317,14 +317,14 @@ definePageMetadata(() => ({
 .ogwlenmc {
 	> .local {
 		.empty {
-			margin: var(--margin);
+			margin: var(--MI-margin);
 		}
 
 		.ldhfsamy {
 			display: grid;
 			grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
 			grid-gap: 12px;
-			margin: var(--margin) 0;
+			margin: var(--MI-margin) 0;
 
 			> .emoji {
 				display: flex;
@@ -369,14 +369,14 @@ definePageMetadata(() => ({
 
 	> .remote {
 		.empty {
-			margin: var(--margin);
+			margin: var(--MI-margin);
 		}
 
 		.ldhfsamy {
 			display: grid;
 			grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
 			grid-gap: 12px;
-			margin: var(--margin) 0;
+			margin: var(--MI-margin) 0;
 
 			> .emoji {
 				display: flex;
diff --git a/packages/frontend/src/pages/drive.file.info.vue b/packages/frontend/src/pages/drive.file.info.vue
index 98fa99e2a3..dfcc82c77b 100644
--- a/packages/frontend/src/pages/drive.file.info.vue
+++ b/packages/frontend/src/pages/drive.file.info.vue
@@ -232,7 +232,7 @@ onMounted(async () => {
 
 .filePreviewRoot {
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	// MkMediaList 内の上部マージン 4px
 	padding: calc(1rem - 4px) 1rem 1rem;
 }
@@ -285,7 +285,7 @@ onMounted(async () => {
 	align-items: center;
 	min-width: 0;
 	font-weight: 700;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	font-size: .8rem;
 
 	>.fileNameEditIcon {
@@ -322,7 +322,7 @@ onMounted(async () => {
 	display: block;
 	width: 100%;
 	padding: .5rem 1rem;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 
 	.kvEditIcon {
 		display: inline-block;
diff --git a/packages/frontend/src/pages/emoji-edit-dialog.vue b/packages/frontend/src/pages/emoji-edit-dialog.vue
index bd798d9f3a..969aa6bbf7 100644
--- a/packages/frontend/src/pages/emoji-edit-dialog.vue
+++ b/packages/frontend/src/pages/emoji-edit-dialog.vue
@@ -245,7 +245,7 @@ async function del() {
 	padding: 12px;
 	border-top: solid 0.5px var(--MI_THEME-divider);
 	background: var(--MI_THEME-acrylicBg);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/explore.featured.vue b/packages/frontend/src/pages/explore.featured.vue
index cfdb235d3a..8b16a88ff3 100644
--- a/packages/frontend/src/pages/explore.featured.vue
+++ b/packages/frontend/src/pages/explore.featured.vue
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <MkSpacer :contentMax="800">
-	<MkTab v-model="tab" style="margin-bottom: var(--margin);">
+	<MkTab v-model="tab" style="margin-bottom: var(--MI-margin);">
 		<option value="notes">{{ i18n.ts.notes }}</option>
 		<option value="polls">{{ i18n.ts.poll }}</option>
 	</MkTab>
diff --git a/packages/frontend/src/pages/explore.users.vue b/packages/frontend/src/pages/explore.users.vue
index e9608ae94e..c9acfec04f 100644
--- a/packages/frontend/src/pages/explore.users.vue
+++ b/packages/frontend/src/pages/explore.users.vue
@@ -5,7 +5,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <MkSpacer :contentMax="1200">
-	<MkTab v-model="origin" style="margin-bottom: var(--margin);">
+	<MkTab v-model="origin" style="margin-bottom: var(--MI-margin);">
 		<option value="local">{{ i18n.ts.local }}</option>
 		<option value="remote">{{ i18n.ts.remote }}</option>
 	</MkTab>
diff --git a/packages/frontend/src/pages/favorites.vue b/packages/frontend/src/pages/favorites.vue
index e2765da3e9..6716566101 100644
--- a/packages/frontend/src/pages/favorites.vue
+++ b/packages/frontend/src/pages/favorites.vue
@@ -47,6 +47,6 @@ definePageMetadata(() => ({
 <style lang="scss" module>
 .note {
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 </style>
diff --git a/packages/frontend/src/pages/flash/flash-edit.vue b/packages/frontend/src/pages/flash/flash-edit.vue
index 87bd707f6d..d84ec4873b 100644
--- a/packages/frontend/src/pages/flash/flash-edit.vue
+++ b/packages/frontend/src/pages/flash/flash-edit.vue
@@ -467,7 +467,7 @@ definePageMetadata(() => ({
 </script>
 <style lang="scss" module>
 .footer {
-	backdrop-filter: var(--blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background: var(--MI_THEME-acrylicBg);
 	border-top: solid .5px var(--MI_THEME-divider);
 }
diff --git a/packages/frontend/src/pages/gallery/index.vue b/packages/frontend/src/pages/gallery/index.vue
index e0e187f2ce..f396fd2c0c 100644
--- a/packages/frontend/src/pages/gallery/index.vue
+++ b/packages/frontend/src/pages/gallery/index.vue
@@ -130,6 +130,6 @@ definePageMetadata(() => ({
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
 	grid-gap: 12px;
-	margin: 0 var(--margin);
+	margin: 0 var(--MI-margin);
 }
 </style>
diff --git a/packages/frontend/src/pages/gallery/post.vue b/packages/frontend/src/pages/gallery/post.vue
index aab4e53454..feb4c60611 100644
--- a/packages/frontend/src/pages/gallery/post.vue
+++ b/packages/frontend/src/pages/gallery/post.vue
@@ -321,7 +321,7 @@ definePageMetadata(() => ({
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
 	grid-gap: 12px;
-	margin: var(--margin);
+	margin: var(--MI-margin);
 
 	> .post {
 
diff --git a/packages/frontend/src/pages/install-extensions.vue b/packages/frontend/src/pages/install-extensions.vue
index 30e658d8c0..6d68ed83b4 100644
--- a/packages/frontend/src/pages/install-extensions.vue
+++ b/packages/frontend/src/pages/install-extensions.vue
@@ -250,7 +250,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .extInstallerRoot {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	background: var(--MI_THEME-panel);
 	padding: 1.5rem;
 }
diff --git a/packages/frontend/src/pages/list.vue b/packages/frontend/src/pages/list.vue
index 954246ff93..48bc568ac4 100644
--- a/packages/frontend/src/pages/list.vue
+++ b/packages/frontend/src/pages/list.vue
@@ -108,7 +108,7 @@ definePageMetadata(() => ({
 </script>
 <style lang="scss" module>
 .main {
-	min-height: calc(100cqh - (var(--stickyTop, 0px) + var(--stickyBottom, 0px)));
+	min-height: calc(100cqh - (var(--MI-stickyTop, 0px) + var(--MI-stickyBottom, 0px)));
 }
 
 .userItem {
diff --git a/packages/frontend/src/pages/my-lists/list.vue b/packages/frontend/src/pages/my-lists/list.vue
index a78f4bb539..804a5ae8f8 100644
--- a/packages/frontend/src/pages/my-lists/list.vue
+++ b/packages/frontend/src/pages/my-lists/list.vue
@@ -199,7 +199,7 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .main {
-	min-height: calc(100cqh - (var(--stickyTop, 0px) + var(--stickyBottom, 0px)));
+	min-height: calc(100cqh - (var(--MI-stickyTop, 0px) + var(--MI-stickyBottom, 0px)));
 }
 
 .userItem {
@@ -234,8 +234,8 @@ definePageMetadata(() => ({
 }
 
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	border-top: solid 0.5px var(--MI_THEME-divider);
 }
 </style>
diff --git a/packages/frontend/src/pages/note.vue b/packages/frontend/src/pages/note.vue
index d2e7559109..448244204d 100644
--- a/packages/frontend/src/pages/note.vue
+++ b/packages/frontend/src/pages/note.vue
@@ -170,11 +170,11 @@ definePageMetadata(() => ({
 }
 
 .loadNext {
-	margin-bottom: var(--margin);
+	margin-bottom: var(--MI-margin);
 }
 
 .loadPrev {
-	margin-top: var(--margin);
+	margin-top: var(--MI-margin);
 }
 
 .loadButton {
@@ -182,7 +182,7 @@ definePageMetadata(() => ({
 }
 
 .note {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	background: var(--MI_THEME-panel);
 }
 </style>
diff --git a/packages/frontend/src/pages/notifications.vue b/packages/frontend/src/pages/notifications.vue
index bd93fc8369..46ee501c76 100644
--- a/packages/frontend/src/pages/notifications.vue
+++ b/packages/frontend/src/pages/notifications.vue
@@ -102,7 +102,7 @@ definePageMetadata(() => ({
 
 <style module lang="scss">
 .notifications {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 </style>
diff --git a/packages/frontend/src/pages/page.vue b/packages/frontend/src/pages/page.vue
index 73fe938e9c..a1bec52f18 100644
--- a/packages/frontend/src/pages/page.vue
+++ b/packages/frontend/src/pages/page.vue
@@ -365,7 +365,7 @@ definePageMetadata(() => ({
 }
 
 .pageMain {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	padding: 2rem;
 	background: var(--MI_THEME-panel);
 	box-sizing: border-box;
@@ -374,7 +374,7 @@ definePageMetadata(() => ({
 .pageBanner {
 	width: calc(100% + 4rem);
 	margin: -2rem -2rem 1.5rem;
-	border-radius: var(--radius) var(--radius) 0 0;
+	border-radius: var(--MI-radius) var(--MI-radius) 0 0;
 	overflow: hidden;
 	position: relative;
 
@@ -458,7 +458,7 @@ definePageMetadata(() => ({
 			flex-shrink: 0;
 			display: flex;
 			align-items: center;
-			gap: var(--marginHalf);
+			gap: var(--MI-marginHalf);
 			margin-left: auto;
 		}
 	}
@@ -479,7 +479,7 @@ definePageMetadata(() => ({
 	> .other {
 		margin-left: auto;
 		display: flex;
-		gap: var(--marginHalf);
+		gap: var(--MI-marginHalf);
 	}
 }
 
@@ -526,11 +526,11 @@ definePageMetadata(() => ({
 	display: flex;
 	align-items: center;
 	flex-wrap: wrap;
-	gap: var(--marginHalf);
+	gap: var(--MI-marginHalf);
 }
 
 .relatedPagesRoot {
-	padding: var(--margin);
+	padding: var(--MI-margin);
 }
 
 .relatedPagesItem > article {
diff --git a/packages/frontend/src/pages/reversi/game.setting.vue b/packages/frontend/src/pages/reversi/game.setting.vue
index f24614f2eb..dfb6e3f53e 100644
--- a/packages/frontend/src/pages/reversi/game.setting.vue
+++ b/packages/frontend/src/pages/reversi/game.setting.vue
@@ -290,8 +290,8 @@ onUnmounted(() => {
 }
 
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background: var(--MI_THEME-acrylicBg);
 	border-top: solid 0.5px var(--MI_THEME-divider);
 }
diff --git a/packages/frontend/src/pages/reversi/index.vue b/packages/frontend/src/pages/reversi/index.vue
index 91616d3a50..d608a2411c 100644
--- a/packages/frontend/src/pages/reversi/index.vue
+++ b/packages/frontend/src/pages/reversi/index.vue
@@ -285,7 +285,7 @@ definePageMetadata(() => ({
 .gamePreviews {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
-	grid-gap: var(--margin);
+	grid-gap: var(--MI-margin);
 }
 
 .gamePreview {
diff --git a/packages/frontend/src/pages/scratchpad.vue b/packages/frontend/src/pages/scratchpad.vue
index 280a8d0d44..2250e1ce60 100644
--- a/packages/frontend/src/pages/scratchpad.vue
+++ b/packages/frontend/src/pages/scratchpad.vue
@@ -204,7 +204,7 @@ definePageMetadata(() => ({
 .root {
 	display: flex;
 	flex-direction: column;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 }
 
 .editor {
diff --git a/packages/frontend/src/pages/settings/avatar-decoration.dialog.vue b/packages/frontend/src/pages/settings/avatar-decoration.dialog.vue
index 7f1c6fd401..853e536ea3 100644
--- a/packages/frontend/src/pages/settings/avatar-decoration.dialog.vue
+++ b/packages/frontend/src/pages/settings/avatar-decoration.dialog.vue
@@ -151,7 +151,7 @@ async function detach() {
 	left: 0;
 	padding: 12px;
 	border-top: solid 0.5px var(--MI_THEME-divider);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 </style>
diff --git a/packages/frontend/src/pages/settings/avatar-decoration.vue b/packages/frontend/src/pages/settings/avatar-decoration.vue
index 77229d3349..9fca306f9f 100644
--- a/packages/frontend/src/pages/settings/avatar-decoration.vue
+++ b/packages/frontend/src/pages/settings/avatar-decoration.vue
@@ -145,7 +145,7 @@ definePageMetadata(() => ({
 
 .current {
 	padding: 16px;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .decorations {
diff --git a/packages/frontend/src/pages/settings/emoji-picker.vue b/packages/frontend/src/pages/settings/emoji-picker.vue
index 427cdbe64e..fd3581d114 100644
--- a/packages/frontend/src/pages/settings/emoji-picker.vue
+++ b/packages/frontend/src/pages/settings/emoji-picker.vue
@@ -248,8 +248,8 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .tab {
-	margin: calc(var(--margin) / 2) 0;
-	padding: calc(var(--margin) / 2) 0;
+	margin: calc(var(--MI-margin) / 2) 0;
+	padding: calc(var(--MI-margin) / 2) 0;
 	background: var(--MI_THEME-bg);
 }
 
diff --git a/packages/frontend/src/pages/settings/preferences-backups.vue b/packages/frontend/src/pages/settings/preferences-backups.vue
index 80d04ec686..7388e014ed 100644
--- a/packages/frontend/src/pages/settings/preferences-backups.vue
+++ b/packages/frontend/src/pages/settings/preferences-backups.vue
@@ -445,7 +445,7 @@ definePageMetadata(() => ({
 <style lang="scss" module>
 .buttons {
 	display: flex;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 	flex-wrap: wrap;
 }
 
diff --git a/packages/frontend/src/pages/settings/theme.vue b/packages/frontend/src/pages/settings/theme.vue
index 73cc075082..f1ec231588 100644
--- a/packages/frontend/src/pages/settings/theme.vue
+++ b/packages/frontend/src/pages/settings/theme.vue
@@ -412,7 +412,7 @@ definePageMetadata(() => ({
 .rsljpzjq {
 	> .selects {
 		display: flex;
-		gap: 1.5em var(--margin);
+		gap: 1.5em var(--MI-margin);
 		flex-wrap: wrap;
 
 		> .select {
diff --git a/packages/frontend/src/pages/signup-complete.vue b/packages/frontend/src/pages/signup-complete.vue
index ab8502c1e6..14fb96d4f1 100644
--- a/packages/frontend/src/pages/signup-complete.vue
+++ b/packages/frontend/src/pages/signup-complete.vue
@@ -71,7 +71,7 @@ place-content: center;
 .form {
 	position: relative;
 	z-index: 10;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
 	overflow: clip;
 	max-width: 500px;
diff --git a/packages/frontend/src/pages/tag.vue b/packages/frontend/src/pages/tag.vue
index 3e6d4db03d..b669e25179 100644
--- a/packages/frontend/src/pages/tag.vue
+++ b/packages/frontend/src/pages/tag.vue
@@ -76,8 +76,8 @@ definePageMetadata(() => ({
 
 <style lang="scss" module>
 .footer {
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 	background: var(--MI_THEME-acrylicBg);
 	border-top: solid 0.5px var(--MI_THEME-divider);
 	display: flex;
diff --git a/packages/frontend/src/pages/timeline.vue b/packages/frontend/src/pages/timeline.vue
index f913060096..4feba54104 100644
--- a/packages/frontend/src/pages/timeline.vue
+++ b/packages/frontend/src/pages/timeline.vue
@@ -9,10 +9,10 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<MkSpacer :contentMax="800">
 		<MkHorizontalSwipe v-model:tab="src" :tabs="$i ? headerTabs : headerTabsWhenNotLogin">
 			<div :key="src" ref="rootEl">
-				<MkInfo v-if="isBasicTimeline(src) && !defaultStore.reactiveState.timelineTutorials.value[src]" style="margin-bottom: var(--margin);" closable @close="closeTutorial()">
+				<MkInfo v-if="isBasicTimeline(src) && !defaultStore.reactiveState.timelineTutorials.value[src]" style="margin-bottom: var(--MI-margin);" closable @close="closeTutorial()">
 					{{ i18n.ts._timelineDescription[src] }}
 				</MkInfo>
-				<MkPostForm v-if="defaultStore.reactiveState.showFixedPostForm.value" :class="$style.postForm" class="post-form _panel" fixed style="margin-bottom: var(--margin);"/>
+				<MkPostForm v-if="defaultStore.reactiveState.showFixedPostForm.value" :class="$style.postForm" class="post-form _panel" fixed style="margin-bottom: var(--MI-margin);"/>
 				<div v-if="queue > 0" :class="$style.new"><button class="_buttonPrimary" :class="$style.newButton" @click="top()">{{ i18n.ts.newNoteRecived }}</button></div>
 				<div :class="$style.tl">
 					<MkTimeline
@@ -345,30 +345,30 @@ definePageMetadata(() => ({
 <style lang="scss" module>
 .new {
 	position: sticky;
-	top: calc(var(--stickyTop, 0px) + 16px);
+	top: calc(var(--MI-stickyTop, 0px) + 16px);
 	z-index: 1000;
 	width: 100%;
 	margin: calc(-0.675em - 8px) 0;
 
 	&:first-child {
-		margin-top: calc(-0.675em - 8px - var(--margin));
+		margin-top: calc(-0.675em - 8px - var(--MI-margin));
 	}
 }
 
 .newButton {
 	display: block;
-	margin: var(--margin) auto 0 auto;
+	margin: var(--MI-margin) auto 0 auto;
 	padding: 8px 16px;
 	border-radius: 32px;
 }
 
 .postForm {
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 
 .tl {
 	background: var(--MI_THEME-bg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 </style>
diff --git a/packages/frontend/src/pages/user-list-timeline.vue b/packages/frontend/src/pages/user-list-timeline.vue
index a05743a5a1..3efeb46c0a 100644
--- a/packages/frontend/src/pages/user-list-timeline.vue
+++ b/packages/frontend/src/pages/user-list-timeline.vue
@@ -79,26 +79,26 @@ definePageMetadata(() => ({
 <style lang="scss" module>
 .new {
 	position: sticky;
-	top: calc(var(--stickyTop, 0px) + 16px);
+	top: calc(var(--MI-stickyTop, 0px) + 16px);
 	z-index: 1000;
 	width: 100%;
 	margin: calc(-0.675em - 8px) 0;
 
 	&:first-child {
-		margin-top: calc(-0.675em - 8px - var(--margin));
+		margin-top: calc(-0.675em - 8px - var(--MI-margin));
 	}
 }
 
 .newButton {
 	display: block;
-	margin: var(--margin) auto 0 auto;
+	margin: var(--MI-margin) auto 0 auto;
 	padding: 8px 16px;
 	border-radius: 32px;
 }
 
 .tl {
 	background: var(--MI_THEME-bg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 </style>
diff --git a/packages/frontend/src/pages/user/follow-list.vue b/packages/frontend/src/pages/user/follow-list.vue
index e60dccec17..868767e8f4 100644
--- a/packages/frontend/src/pages/user/follow-list.vue
+++ b/packages/frontend/src/pages/user/follow-list.vue
@@ -45,6 +45,6 @@ const followersPagination = {
 .users {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
-	grid-gap: var(--margin);
+	grid-gap: var(--MI-margin);
 }
 </style>
diff --git a/packages/frontend/src/pages/user/gallery.vue b/packages/frontend/src/pages/user/gallery.vue
index 9ba81322ba..0bc5628528 100644
--- a/packages/frontend/src/pages/user/gallery.vue
+++ b/packages/frontend/src/pages/user/gallery.vue
@@ -38,6 +38,6 @@ const pagination = {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
 	grid-gap: 12px;
-	margin: var(--margin);
+	margin: var(--MI-margin);
 }
 </style>
diff --git a/packages/frontend/src/pages/user/home.vue b/packages/frontend/src/pages/user/home.vue
index f0f8724c67..00b5740639 100644
--- a/packages/frontend/src/pages/user/home.vue
+++ b/packages/frontend/src/pages/user/home.vue
@@ -377,8 +377,8 @@ onUnmounted(() => {
 						position: absolute;
 						top: 12px;
 						right: 12px;
-						-webkit-backdrop-filter: var(--blur, blur(8px));
-						backdrop-filter: var(--blur, blur(8px));
+						-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+						backdrop-filter: var(--MI-blur, blur(8px));
 						background: rgba(0, 0, 0, 0.2);
 						padding: 8px;
 						border-radius: 24px;
@@ -432,8 +432,8 @@ onUnmounted(() => {
 							> .add-note-button {
 								background: rgba(0, 0, 0, 0.2);
 								color: #fff;
-								-webkit-backdrop-filter: var(--blur, blur(8px));
-								backdrop-filter: var(--blur, blur(8px));
+								-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+								backdrop-filter: var(--MI-blur, blur(8px));
 								border-radius: 24px;
 								padding: 4px 8px;
 								font-size: 80%;
@@ -616,7 +616,7 @@ onUnmounted(() => {
 
 		> .contents {
 			> .content {
-				margin-bottom: var(--margin);
+				margin-bottom: var(--MI-margin);
 			}
 		}
 	}
@@ -633,7 +633,7 @@ onUnmounted(() => {
 		> .sub {
 			max-width: 350px;
 			min-width: 350px;
-			margin-left: var(--margin);
+			margin-left: var(--MI-margin);
 		}
 	}
 }
@@ -711,7 +711,7 @@ onUnmounted(() => {
 <style lang="scss" module>
 .tl {
 	background: var(--MI_THEME-bg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 
diff --git a/packages/frontend/src/pages/user/index.timeline.vue b/packages/frontend/src/pages/user/index.timeline.vue
index 6339c54ddf..49d015a530 100644
--- a/packages/frontend/src/pages/user/index.timeline.vue
+++ b/packages/frontend/src/pages/user/index.timeline.vue
@@ -51,13 +51,13 @@ const pagination = computed(() => tab.value === 'featured' ? {
 
 <style lang="scss" module>
 .tab {
-	padding: calc(var(--margin) / 2) 0;
+	padding: calc(var(--MI-margin) / 2) 0;
 	background: var(--MI_THEME-bg);
 }
 
 .tl {
 	background: var(--MI_THEME-bg);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 </style>
diff --git a/packages/frontend/src/pages/welcome.entrance.a.vue b/packages/frontend/src/pages/welcome.entrance.a.vue
index 8e1f9a4a2c..f0e4a852c9 100644
--- a/packages/frontend/src/pages/welcome.entrance.a.vue
+++ b/packages/frontend/src/pages/welcome.entrance.a.vue
@@ -165,8 +165,8 @@ misskeyApiGet('federation/instances', {
 		right: 0;
 		margin: auto;
 		background: var(--MI_THEME-acrylicPanel);
-		-webkit-backdrop-filter: var(--blur, blur(15px));
-		backdrop-filter: var(--blur, blur(15px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+		backdrop-filter: var(--MI-blur, blur(15px));
 		border-radius: 999px;
 		overflow: clip;
 		width: 800px;
diff --git a/packages/frontend/src/pages/welcome.setup.vue b/packages/frontend/src/pages/welcome.setup.vue
index 6174bcd820..33cc139a45 100644
--- a/packages/frontend/src/pages/welcome.setup.vue
+++ b/packages/frontend/src/pages/welcome.setup.vue
@@ -99,7 +99,7 @@ function submit() {
 .form {
 	position: relative;
 	z-index: 10;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
 	overflow: clip;
 	max-width: 500px;
diff --git a/packages/frontend/src/pages/welcome.timeline.vue b/packages/frontend/src/pages/welcome.timeline.vue
index 732d483615..9be3a80a9e 100644
--- a/packages/frontend/src/pages/welcome.timeline.vue
+++ b/packages/frontend/src/pages/welcome.timeline.vue
@@ -60,7 +60,7 @@ onUpdated(() => {
 		transform: translate3d(0, 0, 0);
 	}
 	100% {
-		transform: translate3d(0, calc(calc(-100% - 128px) - var(--margin)), 0);
+		transform: translate3d(0, calc(calc(-100% - 128px) - var(--MI-margin)), 0);
 	}
 }
 
@@ -69,7 +69,7 @@ onUpdated(() => {
 		transform: translate3d(0, -128px, 0);
 	}
 	100% {
-		transform: translate3d(0, calc(calc(-100% - 128px) - var(--margin)), 0);
+		transform: translate3d(0, calc(calc(-100% - 128px) - var(--MI-margin)), 0);
 	}
 }
 
diff --git a/packages/frontend/src/style.scss b/packages/frontend/src/style.scss
index 424cc02d0e..cfc988bd58 100644
--- a/packages/frontend/src/style.scss
+++ b/packages/frontend/src/style.scss
@@ -7,20 +7,20 @@
  */
 
 :root {
-	--radius: 12px;
-	--marginFull: 16px;
-	--marginHalf: 10px;
+	--MI-radius: 12px;
+	--MI-marginFull: 16px;
+	--MI-marginHalf: 10px;
 
-	--margin: var(--marginFull);
+	--MI-margin: var(--MI-marginFull);
 
 	// switch dynamically
-	--minBottomSpacingMobile: calc(72px + max(12px, env(safe-area-inset-bottom, 0px)));
-	--minBottomSpacing: var(--minBottomSpacingMobile);
+	--MI-minBottomSpacingMobile: calc(72px + max(12px, env(safe-area-inset-bottom, 0px)));
+	--MI-minBottomSpacing: var(--MI-minBottomSpacingMobile);
 
 	//--ad: rgb(255 169 0 / 10%);
 
 	@media (max-width: 500px) {
-		--margin: var(--marginHalf);
+		--MI-margin: var(--MI-marginHalf);
 	}
 }
 
@@ -130,7 +130,7 @@ optgroup, option {
 }
 
 hr {
-	margin: var(--margin) 0 var(--margin) 0;
+	margin: var(--MI-margin) 0 var(--MI-margin) 0;
 	border: none;
 	height: 1px;
 	background: var(--MI_THEME-divider);
@@ -210,8 +210,8 @@ rt {
 	width: 100%;
 	height: 100%;
 	background: var(--MI_THEME-modalBg);
-	-webkit-backdrop-filter: var(--modalBgFilter);
-	backdrop-filter: var(--modalBgFilter);
+	-webkit-backdrop-filter: var(--MI-modalBgFilter);
+	backdrop-filter: var(--MI-modalBgFilter);
 }
 
 ._shadow {
@@ -290,12 +290,12 @@ rt {
 
 ._panel {
 	background: var(--MI_THEME-panel);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	overflow: clip;
 }
 
 ._margin {
-	margin: var(--margin) 0;
+	margin: var(--MI-margin) 0;
 }
 
 ._gaps_m {
@@ -313,7 +313,7 @@ rt {
 ._gaps {
 	display: flex;
 	flex-direction: column;
-	gap: var(--margin);
+	gap: var(--MI-margin);
 }
 
 ._buttons {
@@ -336,7 +336,7 @@ rt {
 	box-sizing: border-box;
 	text-align: center;
 	border: solid 0.5px var(--MI_THEME-divider);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 
 	&:active {
 		border-color: var(--MI_THEME-accent);
@@ -345,14 +345,14 @@ rt {
 
 ._popup {
 	background: var(--MI_THEME-popup);
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 	contain: content;
 }
 
 ._acrylic {
 	background: var(--MI_THEME-acrylicPanel);
-	-webkit-backdrop-filter: var(--blur, blur(15px));
-	backdrop-filter: var(--blur, blur(15px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
+	backdrop-filter: var(--MI-blur, blur(15px));
 }
 
 ._formLinksGrid {
diff --git a/packages/frontend/src/ui/_common_/common.vue b/packages/frontend/src/ui/_common_/common.vue
index e3c0f1f4ce..d145b9b6c6 100644
--- a/packages/frontend/src/ui/_common_/common.vue
+++ b/packages/frontend/src/ui/_common_/common.vue
@@ -116,27 +116,27 @@ if ($i) {
 .notifications {
 	position: fixed;
 	z-index: 3900000;
-	padding: 0 var(--margin);
+	padding: 0 var(--MI-margin);
 	pointer-events: none;
 	display: flex;
 
 	&.notificationsPosition_leftTop {
-		top: var(--margin);
+		top: var(--MI-margin);
 		left: 0;
 	}
 
 	&.notificationsPosition_rightTop {
-		top: var(--margin);
+		top: var(--MI-margin);
 		right: 0;
 	}
 
 	&.notificationsPosition_leftBottom {
-		bottom: calc(var(--minBottomSpacing) + var(--margin));
+		bottom: calc(var(--MI-minBottomSpacing) + var(--MI-margin));
 		left: 0;
 	}
 
 	&.notificationsPosition_rightBottom {
-		bottom: calc(var(--minBottomSpacing) + var(--margin));
+		bottom: calc(var(--MI-minBottomSpacing) + var(--MI-margin));
 		right: 0;
 	}
 
diff --git a/packages/frontend/src/ui/_common_/navbar-for-mobile.vue b/packages/frontend/src/ui/_common_/navbar-for-mobile.vue
index a71f57670d..9acf7b2ede 100644
--- a/packages/frontend/src/ui/_common_/navbar-for-mobile.vue
+++ b/packages/frontend/src/ui/_common_/navbar-for-mobile.vue
@@ -94,8 +94,8 @@ function more() {
 	z-index: 1;
 	padding: 20px 0;
 	background: var(--nav-bg-transparent);
-	-webkit-backdrop-filter: var(--blur, blur(8px));
-	backdrop-filter: var(--blur, blur(8px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+	backdrop-filter: var(--MI-blur, blur(8px));
 }
 
 .banner {
@@ -128,8 +128,8 @@ function more() {
 	bottom: 0;
 	padding: 20px 0;
 	background: var(--nav-bg-transparent);
-	-webkit-backdrop-filter: var(--blur, blur(8px));
-	backdrop-filter: var(--blur, blur(8px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+	backdrop-filter: var(--MI-blur, blur(8px));
 }
 
 .post {
diff --git a/packages/frontend/src/ui/_common_/navbar.vue b/packages/frontend/src/ui/_common_/navbar.vue
index 4d01330432..cbfdaac235 100644
--- a/packages/frontend/src/ui/_common_/navbar.vue
+++ b/packages/frontend/src/ui/_common_/navbar.vue
@@ -146,8 +146,8 @@ function more(ev: MouseEvent) {
 		z-index: 1;
 		padding: 20px 0;
 		background: var(--nav-bg-transparent);
-		-webkit-backdrop-filter: var(--blur, blur(8px));
-		backdrop-filter: var(--blur, blur(8px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+		backdrop-filter: var(--MI-blur, blur(8px));
 	}
 
 	.banner {
@@ -189,8 +189,8 @@ function more(ev: MouseEvent) {
 		bottom: 0;
 		padding-top: 20px;
 		background: var(--nav-bg-transparent);
-		-webkit-backdrop-filter: var(--blur, blur(8px));
-		backdrop-filter: var(--blur, blur(8px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+		backdrop-filter: var(--MI-blur, blur(8px));
 	}
 
 	.post {
@@ -380,8 +380,8 @@ function more(ev: MouseEvent) {
 		z-index: 1;
 		padding: 20px 0;
 		background: var(--nav-bg-transparent);
-		-webkit-backdrop-filter: var(--blur, blur(8px));
-		backdrop-filter: var(--blur, blur(8px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+		backdrop-filter: var(--MI-blur, blur(8px));
 	}
 
 	.instance {
@@ -410,8 +410,8 @@ function more(ev: MouseEvent) {
 		bottom: 0;
 		padding-top: 20px;
 		background: var(--nav-bg-transparent);
-		-webkit-backdrop-filter: var(--blur, blur(8px));
-		backdrop-filter: var(--blur, blur(8px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(8px));
+		backdrop-filter: var(--MI-blur, blur(8px));
 	}
 
 	.post {
diff --git a/packages/frontend/src/ui/_common_/stream-indicator.vue b/packages/frontend/src/ui/_common_/stream-indicator.vue
index ad93b7e61c..cc62a28b14 100644
--- a/packages/frontend/src/ui/_common_/stream-indicator.vue
+++ b/packages/frontend/src/ui/_common_/stream-indicator.vue
@@ -48,8 +48,8 @@ onUnmounted(() => {
 .root {
 	position: fixed;
 	z-index: v-bind(zIndex);
-	bottom: calc(var(--minBottomSpacing) + var(--margin));
-	right: var(--margin);
+	bottom: calc(var(--MI-minBottomSpacing) + var(--MI-margin));
+	right: var(--MI-margin);
 	margin: 0;
 	padding: 12px;
 	font-size: 0.9em;
diff --git a/packages/frontend/src/ui/classic.vue b/packages/frontend/src/ui/classic.vue
index 9715e1ba18..5ea9bf7068 100644
--- a/packages/frontend/src/ui/classic.vue
+++ b/packages/frontend/src/ui/classic.vue
@@ -12,7 +12,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			<XSidebar/>
 		</div>
 		<div v-else-if="!pageMetadata?.needWideArea" ref="widgetsLeft" class="widgets left">
-			<XWidgets place="left" :marginTop="'var(--margin)'" @mounted="attachSticky(widgetsLeft)"/>
+			<XWidgets place="left" :marginTop="'var(--MI-margin)'" @mounted="attachSticky(widgetsLeft)"/>
 		</div>
 
 		<main class="main" @contextmenu.stop="onContextmenu">
@@ -22,7 +22,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		</main>
 
 		<div v-if="isDesktop && !pageMetadata?.needWideArea" ref="widgetsRight" class="widgets right">
-			<XWidgets :place="showMenuOnTop ? 'right' : null" :marginTop="showMenuOnTop ? '0' : 'var(--margin)'" @mounted="attachSticky(widgetsRight)"/>
+			<XWidgets :place="showMenuOnTop ? 'right' : null" :marginTop="showMenuOnTop ? '0' : 'var(--MI-margin)'" @mounted="attachSticky(widgetsRight)"/>
 		</div>
 	</div>
 
@@ -217,7 +217,7 @@ onMounted(() => {
 
 	&.wallpaper {
 		background: var(--MI_THEME-wallpaperOverlay);
-		//backdrop-filter: var(--blur, blur(4px));
+		//backdrop-filter: var(--MI-blur, blur(4px));
 	}
 
 	> .columns {
@@ -253,13 +253,13 @@ onMounted(() => {
 			border-right: solid 1px var(--MI_THEME-divider);
 			border-radius: 0;
 			overflow: clip;
-			--margin: 12px;
+			--MI-margin: 12px;
 		}
 
 		> .widgets {
 			//--MI_THEME-panelBorder: none;
 			width: 300px;
-			padding-bottom: calc(var(--margin) + env(safe-area-inset-bottom, 0px));
+			padding-bottom: calc(var(--MI-margin) + env(safe-area-inset-bottom, 0px));
 
 			@media (max-width: $widgets-hide-threshold) {
 				display: none;
@@ -278,12 +278,12 @@ onMounted(() => {
 			> .main {
 				margin-top: 0;
 				border: solid 1px var(--MI_THEME-divider);
-				border-radius: var(--radius);
-				--stickyTop: var(--globalHeaderHeight);
+				border-radius: var(--MI-radius);
+				--MI-stickyTop: var(--globalHeaderHeight);
 			}
 
 			> .widgets {
-				--stickyTop: var(--globalHeaderHeight);
+				--MI-stickyTop: var(--globalHeaderHeight);
 				margin-top: 0;
 			}
 		}
@@ -314,7 +314,7 @@ onMounted(() => {
 		right: 0;
 		z-index: 1001;
 		height: 100dvh;
-		padding: var(--margin) var(--margin) calc(var(--margin) + env(safe-area-inset-bottom, 0px));
+		padding: var(--MI-margin) var(--MI-margin) calc(var(--MI-margin) + env(safe-area-inset-bottom, 0px));
 		box-sizing: border-box;
 		overflow: auto;
 		background: var(--MI_THEME-bg);
diff --git a/packages/frontend/src/ui/deck.vue b/packages/frontend/src/ui/deck.vue
index 623a109e88..36ffca8264 100644
--- a/packages/frontend/src/ui/deck.vue
+++ b/packages/frontend/src/ui/deck.vue
@@ -305,7 +305,7 @@ body {
 .root {
 	$nav-hide-threshold: 650px; // TODO: どこかに集約したい
 
-	--margin: var(--marginHalf);
+	--MI-margin: var(--MI-marginHalf);
 
 	--columnGap: 6px;
 
@@ -428,8 +428,8 @@ body {
 	grid-gap: 8px;
 	width: 100%;
 	box-sizing: border-box;
-	-webkit-backdrop-filter: var(--blur, blur(32px));
-	backdrop-filter: var(--blur, blur(32px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(32px));
+	backdrop-filter: var(--MI-blur, blur(32px));
 	background-color: var(--MI_THEME-header);
 	border-top: solid 0.5px var(--MI_THEME-divider);
 }
diff --git a/packages/frontend/src/ui/deck/column.vue b/packages/frontend/src/ui/deck/column.vue
index 4aaaea0fd9..da0bf24a56 100644
--- a/packages/frontend/src/ui/deck/column.vue
+++ b/packages/frontend/src/ui/deck/column.vue
@@ -332,8 +332,8 @@ function onDrop(ev) {
 
 	&.naked {
 		background: var(--MI_THEME-acrylicBg) !important;
-		-webkit-backdrop-filter: var(--blur, blur(10px));
-		backdrop-filter: var(--blur, blur(10px));
+		-webkit-backdrop-filter: var(--MI-blur, blur(10px));
+		backdrop-filter: var(--MI-blur, blur(10px));
 
 		> .header {
 			background: transparent;
diff --git a/packages/frontend/src/ui/deck/widgets-column.vue b/packages/frontend/src/ui/deck/widgets-column.vue
index da12570ae2..a0e62c8264 100644
--- a/packages/frontend/src/ui/deck/widgets-column.vue
+++ b/packages/frontend/src/ui/deck/widgets-column.vue
@@ -57,10 +57,10 @@ const menu = [{
 
 <style lang="scss" module>
 .root {
-	--margin: 8px;
+	--MI-margin: 8px;
 	--MI_THEME-panelBorder: none;
 
-	padding: 0 var(--margin);
+	padding: 0 var(--MI-margin);
 }
 
 .intro {
diff --git a/packages/frontend/src/ui/universal.vue b/packages/frontend/src/ui/universal.vue
index 73c4e7c195..9fc8bd102d 100644
--- a/packages/frontend/src/ui/universal.vue
+++ b/packages/frontend/src/ui/universal.vue
@@ -225,12 +225,12 @@ provide<Ref<number>>(CURRENT_STICKY_BOTTOM, navFooterHeight);
 watch(navFooter, () => {
 	if (navFooter.value) {
 		navFooterHeight.value = navFooter.value.offsetHeight;
-		document.body.style.setProperty('--stickyBottom', `${navFooterHeight.value}px`);
-		document.body.style.setProperty('--minBottomSpacing', 'var(--minBottomSpacingMobile)');
+		document.body.style.setProperty('--MI-stickyBottom', `${navFooterHeight.value}px`);
+		document.body.style.setProperty('--MI-minBottomSpacing', 'var(--MI-minBottomSpacingMobile)');
 	} else {
 		navFooterHeight.value = 0;
-		document.body.style.setProperty('--stickyBottom', '0px');
-		document.body.style.setProperty('--minBottomSpacing', '0px');
+		document.body.style.setProperty('--MI-stickyBottom', '0px');
+		document.body.style.setProperty('--MI-minBottomSpacing', '0px');
 	}
 }, {
 	immediate: true,
@@ -336,7 +336,7 @@ $widgets-hide-threshold: 1090px;
 	height: 100%;
 	box-sizing: border-box;
 	overflow: auto;
-	padding: var(--margin) var(--margin) calc(var(--margin) + env(safe-area-inset-bottom, 0px));
+	padding: var(--MI-margin) var(--MI-margin) calc(var(--MI-margin) + env(safe-area-inset-bottom, 0px));
 	border-left: solid 0.5px var(--MI_THEME-divider);
 	background: var(--MI_THEME-bg);
 
@@ -370,7 +370,7 @@ $widgets-hide-threshold: 1090px;
 	z-index: 1001;
 	width: 310px;
 	height: 100dvh;
-	padding: var(--margin) var(--margin) calc(var(--margin) + env(safe-area-inset-bottom, 0px)) !important;
+	padding: var(--MI-margin) var(--MI-margin) calc(var(--MI-margin) + env(safe-area-inset-bottom, 0px)) !important;
 	box-sizing: border-box;
 	overflow: auto;
 	overscroll-behavior: contain;
@@ -400,8 +400,8 @@ $widgets-hide-threshold: 1090px;
 	grid-gap: 8px;
 	width: 100%;
 	box-sizing: border-box;
-	-webkit-backdrop-filter: var(--blur, blur(24px));
-	backdrop-filter: var(--blur, blur(24px));
+	-webkit-backdrop-filter: var(--MI-blur, blur(24px));
+	backdrop-filter: var(--MI-blur, blur(24px));
 	background-color: var(--MI_THEME-header);
 	border-top: solid 0.5px var(--MI_THEME-divider);
 }
@@ -484,6 +484,6 @@ $widgets-hide-threshold: 1090px;
 }
 
 .spacer {
-	height: calc(var(--minBottomSpacing));
+	height: calc(var(--MI-minBottomSpacing));
 }
 </style>
diff --git a/packages/frontend/src/ui/zen.vue b/packages/frontend/src/ui/zen.vue
index 93d57b647e..1f73b5fcaf 100644
--- a/packages/frontend/src/ui/zen.vue
+++ b/packages/frontend/src/ui/zen.vue
@@ -63,12 +63,12 @@ document.documentElement.style.overflowY = 'scroll';
 }
 
 .rootWithBottom {
-	min-height: calc(100dvh - (60px + (var(--margin) * 2) + env(safe-area-inset-bottom, 0px)));
+	min-height: calc(100dvh - (60px + (var(--MI-margin) * 2) + env(safe-area-inset-bottom, 0px)));
 	box-sizing: border-box;
 }
 
 .bottom {
-	height: calc(60px + (var(--margin) * 2) + env(safe-area-inset-bottom, 0px));
+	height: calc(60px + (var(--MI-margin) * 2) + env(safe-area-inset-bottom, 0px));
 	width: 100%;
 	margin-top: auto;
 }
@@ -83,7 +83,7 @@ document.documentElement.style.overflowY = 'scroll';
 	border-radius: 100%;
 	background: var(--MI_THEME-panel);
 	color: var(--MI_THEME-fg);
-	right: var(--margin);
-	bottom: calc(var(--margin) + env(safe-area-inset-bottom, 0px));
+	right: var(--MI-margin);
+	bottom: calc(var(--MI-margin) + env(safe-area-inset-bottom, 0px));
 }
 </style>
diff --git a/packages/frontend/src/widgets/WidgetBirthdayFollowings.vue b/packages/frontend/src/widgets/WidgetBirthdayFollowings.vue
index bcfaaf00ab..c2bda85ac7 100644
--- a/packages/frontend/src/widgets/WidgetBirthdayFollowings.vue
+++ b/packages/frontend/src/widgets/WidgetBirthdayFollowings.vue
@@ -115,7 +115,7 @@ defineExpose<WidgetComponentExpose>({
 <style lang="scss" module>
 .bdayFRoot {
 	overflow: hidden;
-	min-height: calc(calc(calc(50px * 3) - 8px) + calc(var(--margin) * 2));
+	min-height: calc(calc(calc(50px * 3) - 8px) + calc(var(--MI-margin) * 2));
 }
 .bdayFGrid {
 	display: grid;
@@ -123,7 +123,7 @@ defineExpose<WidgetComponentExpose>({
 	grid-template-rows: repeat(3, 42px);
 	place-content: center;
 	gap: 8px;
-	margin: var(--margin) auto;
+	margin: var(--MI-margin) auto;
 }
 
 .bdayFFallback {
@@ -139,6 +139,6 @@ defineExpose<WidgetComponentExpose>({
 	width: auto;
 	max-width: 90%;
 	margin-bottom: 8px;
-	border-radius: var(--radius);
+	border-radius: var(--MI-radius);
 }
 </style>