diff --git a/fe-user/src/components/Layout.tsx b/fe-user/src/components/Layout.tsx
index 0a51bcd..cd8e30e 100644
--- a/fe-user/src/components/Layout.tsx
+++ b/fe-user/src/components/Layout.tsx
@@ -1,7 +1,7 @@
-import { Link, NavLink, Outlet } from 'react-router-dom'
+import { createContext, useContext, useEffect, useMemo, useState } from 'react'
+import { Link, NavLink, Outlet, useLocation } from 'react-router-dom'
 import { ChevronDown, Circle, type LucideIcon } from 'lucide-react'
 import * as Icons from 'lucide-react'
-import { useState } from 'react'
 import { useAuth } from '@/contexts/AuthContext'
 import { TopBar } from '@/components/TopBar'
 import type { MenuNode } from '@/types/menu'
@@ -23,6 +23,18 @@ const TYPE_CODE_TO_INT: Record<string, number> = {
   NguyenTacDv: 7,
 }
 
+// Reverse lookup int → code (cho auto-expand từ URL ?type=)
+const INT_TO_TYPE_CODE: Record<number, string> = Object.fromEntries(
+  Object.entries(TYPE_CODE_TO_INT).map(([k, v]) => [v, k]),
+)
+
+// Detect Ct_<Code> group key (no suffix, distinguish from leaf Ct_<Code>_List/Create/Pending)
+const CT_GROUP_PATTERN = /^Ct_([^_]+)$/
+function getCtGroupCode(key: string): string | null {
+  const m = key.match(CT_GROUP_PATTERN)
+  return m ? m[1] : null
+}
+
 // User-side menu key → route. Differs from admin: Danh sách points to
 // /my-contracts (user's own drafts), Duyệt to /inbox (pending THEIR approval).
 function resolvePath(key: string): string | null {
@@ -58,6 +70,18 @@ function filterForUser(nodes: MenuNode[]): MenuNode[] {
     .map(n => ({ ...n, children: filterForUser(n.children) }))
 }
 
+// Accordion state cho 7 group Ct_<Code> — chỉ 1 expand cùng lúc. Auto-expand
+// theo URL `?type=X` để khi navigate giữa các loại HĐ menu tự sync. Group
+// non-Ct_ giữ behavior cũ (independent local useState).
+type AccordionContextValue = {
+  expandedCtCode: string | null
+  setExpandedCtCode: (code: string | null) => void
+}
+const AccordionContext = createContext<AccordionContextValue>({
+  expandedCtCode: null,
+  setExpandedCtCode: () => {},
+})
+
 function MenuNodeRenderer({ node, depth = 0 }: { node: MenuNode; depth?: number }) {
   const hasChildren = node.children.length > 0
   if (hasChildren) return <MenuGroup node={node} depth={depth} />
@@ -65,19 +89,38 @@ function MenuNodeRenderer({ node, depth = 0 }: { node: MenuNode; depth?: number
 }
 
 function MenuGroup({ node, depth }: { node: MenuNode; depth: number }) {
-  const [open, setOpen] = useState(depth === 0)
+  const ctCode = getCtGroupCode(node.key)
+  const accordion = useContext(AccordionContext)
+
+  // Local state cho group thường (top-level "Hợp đồng" mặc định mở)
+  const [localOpen, setLocalOpen] = useState(depth === 0)
+
+  // Ct_<Code> group: state controlled bởi accordion context
+  const isAccordion = ctCode != null
+  const open = isAccordion ? accordion.expandedCtCode === ctCode : localOpen
+
+  function toggle() {
+    if (isAccordion) {
+      accordion.setExpandedCtCode(open ? null : ctCode)
+    } else {
+      setLocalOpen(o => !o)
+    }
+  }
+
   const Icon = getIcon(node.icon)
   const isTopLevel = depth === 0
 
   return (
     <div>
       <button
-        onClick={() => setOpen(o => !o)}
+        onClick={toggle}
         className={cn(
           'flex w-full items-center justify-between rounded-md transition',
           isTopLevel
             ? 'px-3 py-2 text-xs font-semibold uppercase tracking-wider text-slate-500 hover:bg-slate-100'
             : 'px-3 py-1.5 text-[13px] font-medium text-slate-600 hover:bg-slate-100 hover:text-slate-900',
+          // Highlight Ct_ group đang active (accordion open) bằng tinted background
+          isAccordion && open && 'bg-slate-50 text-slate-900',
         )}
       >
         <span className="flex items-center gap-2">
@@ -161,29 +204,49 @@ function StaticLeaf({ node }: { node: MenuNode }) {
 export function Layout() {
   const { menu } = useAuth()
   const filteredMenu = filterForUser(menu)
+  const location = useLocation()
+
+  // Accordion state — chỉ 1 Ct_<Code> group expand. Auto-sync theo URL ?type=
+  // (sidebar tự mở đúng loại HĐ user đang xem).
+  const [expandedCtCode, setExpandedCtCode] = useState<string | null>(null)
+
+  useEffect(() => {
+    const params = new URLSearchParams(location.search)
+    const typeParam = params.get('type')
+    if (typeParam) {
+      const code = INT_TO_TYPE_CODE[Number(typeParam)]
+      if (code) setExpandedCtCode(code)
+    }
+    // KHÔNG reset null khi URL không có ?type — giữ context user-selected
+    // (vd user đang xem dashboard nhưng đã click expand 1 group, giữ nguyên)
+  }, [location.search])
+
+  const accordionValue = useMemo(() => ({ expandedCtCode, setExpandedCtCode }), [expandedCtCode])
 
   return (
-    <div className="flex h-screen">
-      <aside className="flex w-64 flex-col border-r border-slate-200 bg-white">
-        <div className="flex h-16 items-center border-b border-slate-200 px-5">
-          <Link to="/inbox" className="flex items-center gap-2.5">
-            <img src="/logo.png" alt="Solutions" className="h-8 w-auto" />
-            <span className="text-[11px] font-semibold uppercase tracking-wider text-slate-400">ERP</span>
-          </Link>
+    <AccordionContext.Provider value={accordionValue}>
+      <div className="flex h-screen">
+        <aside className="flex w-64 flex-col border-r border-slate-200 bg-white">
+          <div className="flex h-16 items-center border-b border-slate-200 px-5">
+            <Link to="/inbox" className="flex items-center gap-2.5">
+              <img src="/logo.png" alt="Solutions" className="h-8 w-auto" />
+              <span className="text-[11px] font-semibold uppercase tracking-wider text-slate-400">ERP</span>
+            </Link>
+          </div>
+          <nav className="flex-1 space-y-1 overflow-y-auto p-3">
+            {USER_FIXED_TOP.map(n => <StaticLeaf key={n.key} node={n} />)}
+            {filteredMenu.map(n => (
+              <MenuNodeRenderer key={n.key} node={n} depth={0} />
+            ))}
+          </nav>
+        </aside>
+        <div className="flex flex-1 flex-col overflow-hidden">
+          <TopBar />
+          <main className="flex-1 overflow-auto">
+            <Outlet />
+          </main>
         </div>
-        <nav className="flex-1 space-y-1 overflow-y-auto p-3">
-          {USER_FIXED_TOP.map(n => <StaticLeaf key={n.key} node={n} />)}
-          {filteredMenu.map(n => (
-            <MenuNodeRenderer key={n.key} node={n} depth={0} />
-          ))}
-        </nav>
-      </aside>
-      <div className="flex flex-1 flex-col overflow-hidden">
-        <TopBar />
-        <main className="flex-1 overflow-auto">
-          <Outlet />
-        </main>
       </div>
-    </div>
+    </AccordionContext.Provider>
   )
 }