diff --git a/src/assets/main.css b/src/assets/main.css
index 76905a0..a7367c7 100644
--- a/src/assets/main.css
+++ b/src/assets/main.css
@@ -1,13 +1,18 @@
-body, #app .el-header{
+body,
+#app .el-header {
     padding: 0;
 }
 
-html, body {
+html,
+body {
     margin: 0;
     --el-border-radius-large: 6px;
 }
 
-html, body, #app, .index-container {
+html,
+body,
+#app,
+.index-container {
     height: 100%;
 }
 
@@ -60,18 +65,23 @@ html, body, #app, .index-container {
 .padding-left1 {
     padding-left: 5px;
 }
+
 .padding-left2 {
     padding-left: 10px;
 }
+
 .padding-left3 {
     padding-left: 15px;
 }
+
 .padding-right1 {
     padding-right: 5px;
 }
+
 .padding-right2 {
     padding-right: 10px;
 }
+
 .padding-right3 {
     padding-right: 15px;
 }
@@ -79,18 +89,23 @@ html, body, #app, .index-container {
 .padding-top1 {
     padding-top: 5px;
 }
+
 .padding-top2 {
     padding-top: 10px;
 }
+
 .padding-top3 {
     padding-top: 15px;
 }
+
 .padding-bottom1 {
     padding-bottom: 5px;
 }
+
 .padding-bottom2 {
     padding-bottom: 10px;
 }
+
 .padding-bottom3 {
     padding-bottom: 15px;
 }
@@ -98,9 +113,11 @@ html, body, #app, .index-container {
 .margin-bottom1 {
     margin-bottom: 5px;
 }
+
 .margin-bottom2 {
     margin-bottom: 10px;
 }
+
 .margin-bottom3 {
     margin-bottom: 15px;
 }
@@ -108,9 +125,11 @@ html, body, #app, .index-container {
 .margin-left1 {
     margin-left: 5px;
 }
+
 .margin-left2 {
     margin-left: 10px;
 }
+
 .margin-left3 {
     margin-left: 15px;
 }
@@ -118,9 +137,11 @@ html, body, #app, .index-container {
 .margin-right1 {
     margin-right: 5px;
 }
+
 .margin-right2 {
     margin-right: 10px;
 }
+
 .margin-right3 {
     margin-right: 15px;
 }
@@ -128,9 +149,11 @@ html, body, #app, .index-container {
 .margin-top1 {
     margin-top: 5px;
 }
+
 .margin-top2 {
     margin-top: 10px;
 }
+
 .margin-top3 {
     margin-top: 15px;
 }
@@ -138,20 +161,22 @@ html, body, #app, .index-container {
 .text-center {
     text-align: center;
 }
+
 .text-left {
     text-align: left;
 }
+
 .text-right {
     text-align: right;
 }
 
-.flex-center{
+.flex-center {
     display: flex;
     justify-content: center;
     align-items: center;
 }
 
-.flex-center-col{
+.flex-center-col {
     display: flex;
     align-items: center;
 }
@@ -165,26 +190,30 @@ html, body, #app, .index-container {
 }
 
 .el-dialog.is-fullscreen .el-dialog__header,
-.el-dialog.is-fullscreen .el-dialog__footer{
+.el-dialog.is-fullscreen .el-dialog__footer {
     position: fixed;
     left: 0;
-    right:0;
+    right: 0;
     z-index: 999;
     border-radius: 0;
     padding-left: 20px;
 }
-.el-dialog.is-fullscreen .el-dialog__header{
+
+.el-dialog.is-fullscreen .el-dialog__header {
     margin-top: -20px;
     padding-top: 20px;
     background: inherit;
 }
-.el-dialog.is-fullscreen .el-dialog__footer{
+
+.el-dialog.is-fullscreen .el-dialog__footer {
     bottom: var(--el-dialog-padding-primary);
 }
-.el-dialog.is-fullscreen .dialog-footer{
+
+.el-dialog.is-fullscreen .dialog-footer {
     border-radius: 0;
 }
-.el-dialog.is-fullscreen .el-dialog__body{
+
+.el-dialog.is-fullscreen .el-dialog__body {
     padding: 48px 12px;
 }
 
@@ -192,13 +221,14 @@ html, body, #app, .index-container {
     z-index: 10;
     width: 6px;
 }
+
 .icon-list::-webkit-scrollbar-thumb {
-    border-radius:5px;
-    width:6px;
-    background:var(--el-text-color-disabled)
+    border-radius: 5px;
+    width: 6px;
+    background: var(--el-text-color-disabled)
 }
 
-.login-form .el-card__header{
+.login-form .el-card__header {
     padding-top: 0;
     padding-bottom: 0;
 }
@@ -230,7 +260,7 @@ html, body, #app, .index-container {
     padding-top: 20px;
 }
 
-.reason-code-container .el-radio__label{
+.reason-code-container .el-radio__label {
     white-space: break-spaces;
 }
 
@@ -250,40 +280,40 @@ html, body, #app, .index-container {
 }
 
 .common-form.el-form--inline .el-select,
-.common-subform.el-form--inline .el-select{
+.common-subform.el-form--inline .el-select {
     --el-select-width: 200px;
 }
 
 .common-form.el-form--inline .el-input,
-.common-subform.el-form--inline .el-input{
+.common-subform.el-form--inline .el-input {
     --el-input-width: 200px;
     --el-date-editor-width: 200px;
 }
 
-.common-form-small.common-form.el-form--inline .el-select{
+.common-form-small.common-form.el-form--inline .el-select {
     --el-select-width: 160px;
 }
 
-.common-form-small.common-form.el-form--inline .el-input{
+.common-form-small.common-form.el-form--inline .el-input {
     --el-input-width: 160px;
     --el-date-editor-width: 160px;
 }
 
 .form-edit-width-70 {
-    width:70%
+    width: 70%
 }
 
 .form-edit-width-90 {
-    width:90%
+    width: 90%
 }
 
 .form-edit-width-100 {
-    width:100%
+    width: 100%
 }
 
-.form-edit-width-70 .el-select:not(:is(.el-form--inline .el-select,.el-pagination .el-select)),
-.form-edit-width-90 .el-select:not(:is(.el-form--inline .el-select,.el-pagination .el-select)),
-.form-edit-width-100 .el-select:not(:is(.el-form--inline .el-select,.el-pagination .el-select)){
+.form-edit-width-70 .el-select:not(:is(.el-form--inline .el-select, .el-pagination .el-select)),
+.form-edit-width-90 .el-select:not(:is(.el-form--inline .el-select, .el-pagination .el-select)),
+.form-edit-width-100 .el-select:not(:is(.el-form--inline .el-select, .el-pagination .el-select)) {
     width: 100%;
 }
 
@@ -291,17 +321,18 @@ html, body, #app, .index-container {
     cursor: pointer;
 }
 
-.common-autocomplete .el-popover__title{
+.common-autocomplete .el-popover__title {
     font-size: 14px;
     font-weight: 600;
 }
 
-.common-autocomplete .autocomplete-table .el-table__cell{
+.common-autocomplete .autocomplete-table .el-table__cell {
     padding: 3px 0;
     cursor: pointer;
 }
 
-.common-autocomplete .el-tabs__nav-next, .el-tabs__nav-prev {
+.common-autocomplete .el-tabs__nav-next,
+.el-tabs__nav-prev {
     line-height: 30px;
 }
 
@@ -331,7 +362,7 @@ html, body, #app, .index-container {
     right: -20px;
 }
 
-.small-card .el-card__header{
+.small-card .el-card__header {
     padding: 10px;
 }
 
@@ -354,7 +385,7 @@ html, body, #app, .index-container {
 }
 
 .common-data-row label {
-    font-weight: 600 ;
+    font-weight: 600;
 }
 
 .common-data-row .el-col {
@@ -408,7 +439,7 @@ html, body, #app, .index-container {
     flex-direction: row-reverse;
 }
 
-.common-message-confirm .el-message-box__btns .el-button+.el-button{
+.common-message-confirm .el-message-box__btns .el-button+.el-button {
     margin-right: 12px;
 }
 
@@ -441,6 +472,7 @@ html, body, #app, .index-container {
     float: right;
     width: calc(100% - 140px) !important;
 }
+
 .common-params-edit .el-upload-list {
     margin-left: -515px;
     width: 700px;
@@ -453,13 +485,16 @@ html, body, #app, .index-container {
 .request-table {
     overflow: auto;
 }
+
 .request-table .el-table__row {
     cursor: pointer;
 }
-.request-table .current-row td:first-child{
+
+.request-table .current-row td:first-child {
     border-left: 4px solid var(--el-color-primary);
 }
-.request-table td{
+
+.request-table td {
     border-left: 4px solid transparent;
 }
 
@@ -506,6 +541,30 @@ html, body, #app, .index-container {
     resize: horizontal;
     overflow: auto;
 }
+
 .disable-affix .el-affix--fixed {
     position: unset;
 }
+
+/* Theme transition animation (from Element Plus) */
+::view-transition-old(root),
+::view-transition-new(root) {
+    animation: none;
+    mix-blend-mode: normal;
+}
+
+::view-transition-old(root) {
+    z-index: 1;
+}
+
+::view-transition-new(root) {
+    z-index: 2147483646;
+}
+
+.dark::view-transition-old(root) {
+    z-index: 2147483646;
+}
+
+.dark::view-transition-new(root) {
+    z-index: 1;
+}
\ No newline at end of file
diff --git a/src/services/menu/MenuService.js b/src/services/menu/MenuService.js
index 2cc1bd7..ffc4e61 100644
--- a/src/services/menu/MenuService.js
+++ b/src/services/menu/MenuService.js
@@ -16,6 +16,7 @@ import { GlobalLocales } from '@/consts/GlobalConstants'
 import { useLoginConfigStore } from '@/stores/LoginConfigStore'
 import { I18N_ENABLED, THEME_ENABLED } from '@/config'
 import { $logout } from '@/utils'
+import { nextTick } from 'vue'
 
 export const searchMenusResult = (queryParam, config) => {
   return $httpPost('/api/searchMenus', queryParam, config)
@@ -135,6 +136,67 @@ const processMenus = (menus, parent = undefined) => {
 
 export const useThemeAndLocaleMenus = () => {
   const globalConfigStore = useGlobalConfigStore()
+
+  const toggleTheme = (event) => {
+    // Attempt to get coordinates from the event or global event
+    // Element Plus el-menu-item emits a custom object, not a MouseEvent, so event.clientX might be missing.
+    const mouseEvent = event && typeof event.clientX === 'number' ? event : window.event
+    const x = mouseEvent?.clientX ?? window.innerWidth / 2
+    const y = mouseEvent?.clientY ?? window.innerHeight / 2
+
+    const endRadius = Math.hypot(
+      Math.max(x, innerWidth - x),
+      Math.max(y, innerHeight - y)
+    )
+
+    // Fallback for browsers without View Transition API
+    if (!document.startViewTransition) {
+      globalConfigStore.changeTheme(!globalConfigStore.isDarkTheme)
+      return
+    }
+
+    // Disable transitions to prevent "fading" snapshot
+    const css = document.createElement('style')
+    css.appendChild(document.createTextNode(`* {
+      -webkit-transition: none !important;
+      -moz-transition: none !important;
+      -o-transition: none !important;
+      -ms-transition: none !important;
+      transition: none !important;
+    }`))
+    document.head.appendChild(css)
+
+    const transition = document.startViewTransition(async () => {
+      globalConfigStore.changeTheme(!globalConfigStore.isDarkTheme)
+      await nextTick()
+    })
+
+    transition.ready.then(() => {
+      const clipPath = [
+        `circle(0px at ${x}px ${y}px)`,
+        `circle(${endRadius}px at ${x}px ${y}px)`
+      ]
+      document.documentElement.animate(
+        {
+          clipPath: globalConfigStore.isDarkTheme ? [...clipPath].reverse() : clipPath
+        },
+        {
+          duration: 400,
+          easing: 'ease-in',
+          fill: 'forwards',
+          pseudoElement: globalConfigStore.isDarkTheme
+            ? '::view-transition-old(root)'
+            : '::view-transition-new(root)'
+        }
+      )
+    })
+
+    // Clean up the transition disable style after the animation finishes
+    transition.finished.then(() => {
+      document.head.removeChild(css)
+    })
+  }
+
   return [{
     icon: 'LanguageFilled',
     isDropdown: true,
@@ -156,7 +218,7 @@ export const useThemeAndLocaleMenus = () => {
     isDropdown: true,
     enabled: THEME_ENABLED,
     iconIf: () => !globalConfigStore.isDarkTheme ? 'moon' : 'sunny',
-    click: () => globalConfigStore.changeTheme(!globalConfigStore.isDarkTheme)
+    click: (event) => toggleTheme(event)
   }]
 }