diff --git a/src/client/theme-default/Layout.vue b/src/client/theme-default/Layout.vue
index 30ebe4912b91..8f90dc68aa94 100644
--- a/src/client/theme-default/Layout.vue
+++ b/src/client/theme-default/Layout.vue
@@ -8,15 +8,18 @@ import VPNav from './components/VPNav.vue'
 import VPSidebar from './components/VPSidebar.vue'
 import VPSkipLink from './components/VPSkipLink.vue'
 import { useData } from './composables/data'
-import { registerWatchers } from './composables/layout'
+import { registerWatchers, useLayout } from './composables/layout'
 import { useSidebarControl } from './composables/sidebar'
 
 const {
   isOpen: isSidebarOpen,
   open: openSidebar,
-  close: closeSidebar
+  close: closeSidebar,
+  isCollapsed
 } = useSidebarControl()
 
+const { hasSidebar } = useLayout()
+
 registerWatchers({ closeSidebar })
 
 const { frontmatter } = useData()
@@ -25,13 +28,21 @@ const slots = useSlots()
 const heroImageSlotExists = computed(() => !!slots['home-hero-image'])
 
 provide('hero-image-slot-exists', heroImageSlotExists)
+
+const layoutClasses = computed(() => {
+  return {
+    [String(frontmatter.value.pageClass || '')]: !!frontmatter.value.pageClass,
+    'has-sidebar': hasSidebar.value,
+    'sidebar-collapsed': isCollapsed.value && hasSidebar.value
+  }
+})
 </script>
 
 <template>
   <div
     v-if="frontmatter.layout !== false"
     class="Layout"
-    :class="frontmatter.pageClass"
+    :class="layoutClasses"
   >
     <slot name="layout-top" />
     <VPSkipLink />
@@ -92,4 +103,16 @@ provide('hero-image-slot-exists', heroImageSlotExists)
   flex-direction: column;
   min-height: 100vh;
 }
+
+@media (min-width: 1440px) {
+  .Layout.has-sidebar.sidebar-collapsed .VPContent :deep(.VPDoc .content-container),
+  .Layout.has-sidebar.sidebar-collapsed .VPContent :deep(.VPDoc .content) { 
+    max-width: 100%;
+  }
+
+  .Layout.has-sidebar.sidebar-collapsed .VPContent :deep(.VPDoc .container) {
+    max-width: 100%;
+    justify-content: space-between;
+  }
+}
 </style>
diff --git a/src/client/theme-default/components/VPContent.vue b/src/client/theme-default/components/VPContent.vue
index 8b033785d60c..79a665b04c23 100644
--- a/src/client/theme-default/components/VPContent.vue
+++ b/src/client/theme-default/components/VPContent.vue
@@ -1,20 +1,23 @@
 <script setup lang="ts">
 import NotFound from '../NotFound.vue'
 import { useData } from '../composables/data'
-import { useLayout } from '../composables/layout'
+import { useLayout, } from '../composables/layout'
+import {useSidebarControl} from '../composables/sidebar'
 import VPDoc from './VPDoc.vue'
 import VPHome from './VPHome.vue'
 import VPPage from './VPPage.vue'
 
 const { page, frontmatter } = useData()
 const { isHome, hasSidebar } = useLayout()
+const {isCollapsed} = useSidebarControl()
 </script>
 
 <template>
   <div
     class="VPContent"
     id="VPContent"
-    :class="{ 'has-sidebar': hasSidebar, 'is-home': isHome }"
+    :class="{ 'has-sidebar': hasSidebar, 'is-home': isHome ,'collapsed':isCollapsed
+    }"
   >
     <slot name="not-found" v-if="page.isNotFound"><NotFound /></slot>
 
@@ -91,5 +94,8 @@ const { isHome, hasSidebar } = useLayout()
     padding-right: calc((100vw - var(--vp-layout-max-width)) / 2);
     padding-left: calc((100vw - var(--vp-layout-max-width)) / 2 + var(--vp-sidebar-width));
   }
+  .VPContent.has-sidebar.collapsed {
+    padding-left: calc(100vw - var(--vp-layout-max-width)) / 2 ;
+  }
 }
 </style>
diff --git a/src/client/theme-default/components/VPNavBar.vue b/src/client/theme-default/components/VPNavBar.vue
index 1313657ccebe..8b105b312449 100644
--- a/src/client/theme-default/components/VPNavBar.vue
+++ b/src/client/theme-default/components/VPNavBar.vue
@@ -1,7 +1,8 @@
 <script lang="ts" setup>
-import { useWindowScroll } from '@vueuse/core'
+import { useMediaQuery, useWindowScroll } from '@vueuse/core'
 import { ref, watchPostEffect } from 'vue'
 import { useLayout } from '../composables/layout'
+import { useSidebarControl } from '../composables/sidebar'
 import VPNavBarAppearance from './VPNavBarAppearance.vue'
 import VPNavBarExtra from './VPNavBarExtra.vue'
 import VPNavBarHamburger from './VPNavBarHamburger.vue'
@@ -20,6 +21,7 @@ defineEmits<{
 }>()
 
 const { y } = useWindowScroll()
+const {isCollapsed, toggleCollapse: toggleSidebarCollapse } = useSidebarControl()
 const { isHome, hasSidebar } = useLayout()
 
 const classes = ref<Record<string, boolean>>({})
@@ -29,20 +31,31 @@ watchPostEffect(() => {
     'has-sidebar': hasSidebar.value,
     'home': isHome.value,
     'top': y.value === 0,
+    'collapsed':isCollapsed.value,
     'screen-open': props.isScreenOpen
   }
 })
+const is1440 = useMediaQuery('(min-width: 1440px)')
 </script>
 
 <template>
   <div class="VPNavBar" :class="classes">
     <div class="wrapper">
       <div class="container">
-        <div class="title">
-          <VPNavBarTitle>
-            <template #nav-bar-title-before><slot name="nav-bar-title-before" /></template>
-            <template #nav-bar-title-after><slot name="nav-bar-title-after" /></template>
-          </VPNavBarTitle>
+          <div class="title">
+            <VPNavBarTitle >
+              <template #nav-bar-title-before><slot name="nav-bar-title-before" /></template>
+              <template #nav-bar-title-after><slot name="nav-bar-title-after" /></template>
+
+            </VPNavBarTitle>
+            <button
+              v-if="!isHome&&is1440"
+              class="sidebar-toggle-button"
+              @click="toggleSidebarCollapse"
+              aria-label="collapse sidebar"
+            >
+              <span class="vpi-collapse icon" />
+            </button>
         </div>
 
         <div class="content">
@@ -94,6 +107,9 @@ watchPostEffect(() => {
   .VPNavBar:not(.has-sidebar):not(.home.top) {
     background-color: var(--vp-nav-bg-color);
   }
+  .VPNavBar.collapsed {
+    background-color: var(--vp-nav-bg-color);
+  }
 }
 
 .wrapper {
@@ -140,6 +156,17 @@ watchPostEffect(() => {
   flex-shrink: 0;
   height: calc(var(--vp-nav-height) - 1px);
   transition: background-color 0.5s;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+.VPNavBar:not(.home):not(.collapsed).has-sidebar .title{
+    border-bottom: 1px solid var(--vp-c-divider);
+    width: calc((100% - (var(--vp-layout-max-width) - 64px)) / 2 + var(--vp-sidebar-width) - 32px - 20px)
+}
+.VPNavBar:not(.home).collapsed .title{
+    background-color: var(--vp-nav-bg-color);
+    border-bottom: 1px solid var(--vp-c-divider);
 }
 
 @media (min-width: 960px) {
@@ -269,4 +296,33 @@ watchPostEffect(() => {
     background-color: var(--vp-c-gutter);
   }
 }
+
+.sidebar-toggle-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px; 
+  height: 36px;
+  color: var(--vp-c-text-2);
+  background-color: transparent;
+  border: none;
+  border-radius: 6px;
+  transition: background-color 0.25s, color 0.25s;
+  pointer-events: auto; 
+}
+
+.sidebar-toggle-button:hover {
+  background-color: var(--vp-c-bg-mute);
+  color: var(--vp-c-text-1);
+}
+
+.sidebar-toggle-button .icon {
+  width: 20px; 
+  height: 20px;
+  transition: transform 0.25s ease;
+}
+
+.sidebar-toggle-button .icon.is-collapsed {
+  transform: rotate(180deg);
+}
 </style>
diff --git a/src/client/theme-default/components/VPNavBarTitle.vue b/src/client/theme-default/components/VPNavBarTitle.vue
index 9679f8a5c592..de07968fb267 100644
--- a/src/client/theme-default/components/VPNavBarTitle.vue
+++ b/src/client/theme-default/components/VPNavBarTitle.vue
@@ -50,7 +50,6 @@ const target = computed(() =>
 .title {
   display: flex;
   align-items: center;
-  border-bottom: 1px solid transparent;
   width: 100%;
   height: var(--vp-nav-height);
   font-size: 16px;
@@ -63,10 +62,6 @@ const target = computed(() =>
   .title {
     flex-shrink: 0;
   }
-
-  .VPNavBarTitle.has-sidebar .title {
-    border-bottom-color: var(--vp-c-divider);
-  }
 }
 
 :deep(.logo) {
diff --git a/src/client/theme-default/components/VPSidebar.vue b/src/client/theme-default/components/VPSidebar.vue
index c2de0a0d8356..817a9c9b9248 100644
--- a/src/client/theme-default/components/VPSidebar.vue
+++ b/src/client/theme-default/components/VPSidebar.vue
@@ -1,11 +1,13 @@
 <script lang="ts" setup>
-import { useScrollLock } from '@vueuse/core'
+import { useEventListener, useScrollLock } from '@vueuse/core'
 import { inBrowser } from 'vitepress'
 import { ref, watch } from 'vue'
 import { useLayout } from '../composables/layout'
 import VPSidebarGroup from './VPSidebarGroup.vue'
+import { useSidebarControl } from '../composables/sidebar'
 
-const { sidebarGroups, hasSidebar } = useLayout()
+const { isHome,sidebarGroups } = useLayout()
+const { isCollapsed } = useSidebarControl()
 
 const props = defineProps<{
   open: boolean
@@ -28,6 +30,7 @@ watch(
 
 const key = ref(0)
 
+
 watch(
   sidebarGroups,
   () => {
@@ -35,15 +38,25 @@ watch(
   },
   { deep: true }
 )
+
+useEventListener(document,'mousemove',(e)=>{
+  if(isHome.value) return
+  if(e.clientX<5){
+    navEl.value?.classList.add('expanded')
+  }else if(e.target instanceof Node &&!navEl.value?.contains(e.target)&&e.pageX>272){
+    navEl.value?.classList.remove('expanded')
+  }
+})
+
 </script>
 
 <template>
-  <aside
-    v-if="hasSidebar"
+    <aside
     class="VPSidebar"
-    :class="{ open }"
+    :class="{ open ,collapsed:isCollapsed}"
     ref="navEl"
     @click.stop
+    v-if="!isHome"
   >
     <div class="curtain" />
 
@@ -84,12 +97,26 @@ watch(
   overscroll-behavior: contain;
 }
 
+.collapsed{
+  transform: translateX(-100%);
+  opacity: 0 !important;
+  transition: opacity 0.25s, transform 0.25s ease;
+  overscroll-behavior: contain;
+}
+.expanded{
+  transform: translateX(0);
+  opacity: 1 !important;
+  transition: opacity 0.25s, transform 0.25s ease;
+  overscroll-behavior: contain;
+  width: calc(100vw - 64px);
+  max-width: 320px;
+  z-index: var(--vp-z-index-sidebar) !important;
+}
+
 .VPSidebar.open {
   opacity: 1;
   visibility: visible;
   transform: translateX(0);
-  transition: opacity 0.25s,
-    transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
 }
 
 .dark .VPSidebar {
diff --git a/src/client/theme-default/composables/sidebar.ts b/src/client/theme-default/composables/sidebar.ts
index b693cc89d266..ddfe63372710 100644
--- a/src/client/theme-default/composables/sidebar.ts
+++ b/src/client/theme-default/composables/sidebar.ts
@@ -14,6 +14,7 @@ import { hasActiveLink as containsActiveLink } from '../support/sidebar'
 import { useData } from './data'
 
 const isOpen = ref(false)
+const isCollapsed = ref(false)
 
 /**
  * a11y: cache the element that opened the Sidebar (the menu button) then
@@ -57,11 +58,17 @@ export function useSidebarControl() {
     isOpen.value ? close() : open()
   }
 
+  function toggleCollapse() {
+    isCollapsed.value = !isCollapsed.value
+  }
+
   return {
     isOpen,
     open,
     close,
-    toggle
+    toggle,
+    isCollapsed,
+    toggleCollapse
   }
 }
 
diff --git a/src/client/theme-default/styles/icons.css b/src/client/theme-default/styles/icons.css
index 987651a3e50e..70242edcd708 100644
--- a/src/client/theme-default/styles/icons.css
+++ b/src/client/theme-default/styles/icons.css
@@ -85,6 +85,9 @@
 .vpi-corner-down-left {
   --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='m9 10-5 5 5 5'/%3E%3Cpath d='M20 4v7a4 4 0 0 1-4 4H4'/%3E%3C/svg%3E");
 }
+.vpi-collapse {
+  --icon: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIyNCIgdmlld0JveD0iMCAwIDI0IDI0IiBmaWxsPSJub25lIiBzdHJva2U9ImN1cnJlbnRDb2xvciIgc3Ryb2tlLXdpZHRoPSIyIiBzdHJva2UtbGluZWNhcD0icm91bmQiIHN0cm9rZS1saW5lam9pbj0icm91bmQiIGNsYXNzPSJsdWNpZGUiPgogICAgICAgIDxyZWN0IHdpZHRoPSIxOCIgaGVpZ2h0PSIxOCIgeD0iMyIgeT0iMyIgcng9IjIiLz4KICAgICAgICA8cGF0aCBkPSJNOSAzdjE4Ii8+CiAgICA8L3N2Zz4=');
+}
 :root {
   /* clipboard */
   --vp-icon-copy: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='rgba(128,128,128,1)' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' viewBox='0 0 24 24'%3E%3Crect width='8' height='4' x='8' y='2' rx='1' ry='1'/%3E%3Cpath d='M16 4h2a2 2 0 0 1 2 2v14a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h2'/%3E%3C/svg%3E");