diff --git a/src/main/resources/static/css/app.css b/src/main/resources/static/css/app.css
index 19504f9..339844c 100644
--- a/src/main/resources/static/css/app.css
+++ b/src/main/resources/static/css/app.css
@@ -129,7 +129,8 @@ body {
 }
 
 .rw-menu-trigger:hover,
-.rw-menu-trigger:focus {
+.rw-menu-trigger:focus,
+.rw-menu-group.open .rw-menu-trigger {
   background: var(--rw-surface-muted);
   border-color: var(--rw-border);
   color: var(--rw-text);
@@ -149,8 +150,7 @@ body {
   z-index: 30;
 }
 
-.rw-menu-group:hover .rw-menu-panel,
-.rw-menu-group:focus-within .rw-menu-panel {
+.rw-menu-group.open .rw-menu-panel {
   display: grid;
   gap: .15rem;
 }
@@ -181,7 +181,7 @@ body {
     position: static;
   }
 
-  .rw-menu-group:focus-within .rw-menu-panel {
+  .rw-menu-group.open .rw-menu-panel {
     display: grid;
   }
 
diff --git a/src/main/resources/static/js/app.js b/src/main/resources/static/js/app.js
index 3c729c4..1dcddce 100644
--- a/src/main/resources/static/js/app.js
+++ b/src/main/resources/static/js/app.js
@@ -59,6 +59,48 @@ function syncPolicyTemplate(select) {
   });
 }
 
+function closeMenuGroup(group) {
+  if (!group) {
+    return;
+  }
+  group.classList.remove('open');
+  group.querySelector('.rw-menu-trigger')?.setAttribute('aria-expanded', 'false');
+}
+
+function closeAllMenuGroups(exceptGroup = null) {
+  document.querySelectorAll('.rw-menu-group.open').forEach((group) => {
+    if (group !== exceptGroup) {
+      closeMenuGroup(group);
+    }
+  });
+}
+
+function initPersistentMenus() {
+  document.querySelectorAll('.rw-menu-trigger').forEach((button) => {
+    button.addEventListener('click', (event) => {
+      event.stopPropagation();
+      const group = button.closest('.rw-menu-group');
+      if (!group) {
+        return;
+      }
+      const nextOpen = !group.classList.contains('open');
+      closeAllMenuGroups(group);
+      group.classList.toggle('open', nextOpen);
+      button.setAttribute('aria-expanded', String(nextOpen));
+    });
+  });
+  document.addEventListener('click', (event) => {
+    if (!event.target.closest('.rw-menu')) {
+      closeAllMenuGroups();
+    }
+  });
+  document.addEventListener('keydown', (event) => {
+    if (event.key === 'Escape') {
+      closeAllMenuGroups();
+    }
+  });
+}
+
 function escapeHtml(value) {
   return value
       .replaceAll('&', '&')
@@ -428,6 +470,7 @@ function initPermissionWizard() {
 }
 
 document.addEventListener('DOMContentLoaded', () => {
+  initPersistentMenus();
   renderMarkdownViews();
   const master = document.getElementById('userRoleMaster');
   if (master) {
diff --git a/src/main/resources/templates/fragments/layout.html b/src/main/resources/templates/fragments/layout.html
index bf7748f..491cc17 100644
--- a/src/main/resources/templates/fragments/layout.html
+++ b/src/main/resources/templates/fragments/layout.html
@@ -16,7 +16,7 @@
     <a class="navbar-brand" href="/">VPD Backoffice</a>
     <div class="rw-menu">
       <div class="rw-menu-group">
-        <button class="rw-menu-trigger" type="button">권한 관리</button>
+        <button class="rw-menu-trigger" type="button" aria-expanded="false">권한 관리</button>
         <div class="rw-menu-panel">
           <a class="nav-link" href="/users">사용자</a>
           <a class="nav-link" href="/roles">역할</a>
@@ -25,7 +25,7 @@
         </div>
       </div>
       <div class="rw-menu-group">
-        <button class="rw-menu-trigger" type="button">ORDS 서빙</button>
+        <button class="rw-menu-trigger" type="button" aria-expanded="false">ORDS 서빙</button>
         <div class="rw-menu-panel">
           <a class="nav-link" href="/objects">조회 Handler 생성</a>
           <a class="nav-link" href="/probe">ORDS 검증</a>
@@ -33,7 +33,7 @@
         </div>
       </div>
       <div class="rw-menu-group">
-        <button class="rw-menu-trigger" type="button">MCP</button>
+        <button class="rw-menu-trigger" type="button" aria-expanded="false">MCP</button>
         <div class="rw-menu-panel">
           <a class="nav-link" href="/mcp-chatbot">Chatbot</a>
           <a class="nav-link" href="/mcp-reasoning">Reasoning</a>
@@ -42,7 +42,7 @@
         </div>
       </div>
       <div class="rw-menu-group">
-        <button class="rw-menu-trigger" type="button">운영</button>
+        <button class="rw-menu-trigger" type="button" aria-expanded="false">운영</button>
         <div class="rw-menu-panel">
           <a class="nav-link" href="/operation-status">운영 상태</a>
           <a class="nav-link" href="/vpd-policies">VPD 설정</a>