diff --git a/management/src/App.tsx b/management/src/App.tsx
index c5e331b..a3a7a8a 100644
--- a/management/src/App.tsx
+++ b/management/src/App.tsx
@@ -4,7 +4,7 @@ import { ClassesTab } from './components/ClassesTab';
 import { StudentsTab } from './components/StudentsTab';
 import { LearningTab } from './components/LearningTab';
 import { NetworkTab } from './components/NetworkTab';
-import { AccountsTab } from './components/AccountsTab';
+import { EmailDomainsTab, MyAccountTab } from './components/AccountsTab';
 import { ChatWidget } from './components/ChatWidget';
 import { StaffChatSocket } from './hooks/useStaffChatSocket';
 import { ClassWorkspace } from './components/ClassWorkspace';
@@ -50,10 +50,10 @@ const IconNetwork = () => (
   </svg>
 );
 
-const IconAccounts = () => (
+const IconEmail = () => (
   <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
-    <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2" />
-    <circle cx="12" cy="7" r="4" />
+    <rect x="2" y="4" width="20" height="16" rx="2" />
+    <path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7" />
   </svg>
 );
 
@@ -144,21 +144,29 @@ function App() {
             <div className="nav-header">Hệ thống</div>
             <li className="nav-item">
               <button
-                className={`nav-btn ${route.tab === 'accounts' && !route.classId ? 'active' : ''}`}
-                onClick={() => navigate('accounts')}
+                className={`nav-btn ${route.tab === 'email-domains' && !route.classId ? 'active' : ''}`}
+                onClick={() => navigate('email-domains')}
               >
-                <span className="nav-icon"><IconAccounts /></span>
-                Tài khoản
+                <span className="nav-icon"><IconEmail /></span>
+                Đuôi email
               </button>
             </li>
           </ul>
         </nav>
 
         <div className="sidebar-footer">
-          <div style={{ fontSize: '0.75rem', color: 'var(--text-muted)', fontWeight: 500 }}>
-            {staff?.email}
-          </div>
-          <button type="button" className="link-btn" onClick={logout} style={{ marginTop: '0.35rem' }}>
+          <button
+            type="button"
+            className={`sidebar-user-btn ${route.tab === 'profile' && !route.classId ? 'active' : ''}`}
+            onClick={() => navigate('profile')}
+            title="Tài khoản của tôi"
+          >
+            <span className="sidebar-user-name">
+              {staff?.fullName?.trim() || staff?.email?.split('@')[0] || 'Tài khoản'}
+            </span>
+            <span className="sidebar-user-email">{staff?.email}</span>
+          </button>
+          <button type="button" className="link-btn" onClick={logout}>
             Đăng xuất
           </button>
         </div>
@@ -182,7 +190,8 @@ function App() {
               {route.tab === 'students' && <StudentsTab />}
               {route.tab === 'learning' && <LearningTab />}
               {route.tab === 'network' && <NetworkTab />}
-              {route.tab === 'accounts' && <AccountsTab />}
+              {route.tab === 'email-domains' && <EmailDomainsTab />}
+              {route.tab === 'profile' && <MyAccountTab />}
             </>
           )}
         </div>
diff --git a/management/src/components/AccountsTab.tsx b/management/src/components/AccountsTab.tsx
index 1b7eb4a..120bddd 100644
--- a/management/src/components/AccountsTab.tsx
+++ b/management/src/components/AccountsTab.tsx
@@ -64,14 +64,9 @@ export function ChangePasswordPage({ forced }: { forced?: boolean }) {
   );
 }
 
-export function AccountsTab() {
-  const { staff, changePassword } = useAuth();
+export function EmailDomainsTab() {
   const [domains, setDomains] = useState<EmailDomainItem[]>([]);
   const [newDomain, setNewDomain] = useState('');
-  const [oldPw, setOldPw] = useState('');
-  const [newPw, setNewPw] = useState('');
-  const [msg, setMsg] = useState('');
-  const [err, setErr] = useState('');
 
   const load = async () => {
     const res = await apiAdmin.listEmailDomains();
@@ -95,32 +90,13 @@ export function AccountsTab() {
     await load();
   };
 
-  const submitPw = async (e: React.FormEvent) => {
-    e.preventDefault();
-    setErr('');
-    setMsg('');
-    try {
-      await changePassword(oldPw, newPw);
-      setMsg('Đã đổi mật khẩu');
-      setOldPw('');
-      setNewPw('');
-    } catch (e: any) {
-      setErr(e?.message || 'Lỗi');
-    }
-  };
-
   return (
     <div className="page-stack">
       <header className="page-header">
-        <h1 className="page-title">Tài khoản & bảo mật</h1>
-        <p className="page-desc">Quản lý đuôi email được phép và đổi mật khẩu.</p>
+        <h1 className="page-title">Đuôi email</h1>
+        <p className="page-desc">Cấu hình đuôi email được phép đăng ký và đăng nhập.</p>
       </header>
 
-      <div className="card" style={{ padding: '1.25rem' }}>
-        <h2 className="section-title">Tài khoản hiện tại</h2>
-        <p style={{ margin: 0, color: 'var(--text-muted)' }}>{staff?.email}</p>
-      </div>
-
       <div className="card" style={{ padding: '1.25rem' }}>
         <h2 className="section-title">Đuôi email được phép</h2>
         <p className="page-desc" style={{ marginTop: 0 }}>
@@ -145,6 +121,45 @@ export function AccountsTab() {
           ))}
         </ul>
       </div>
+    </div>
+  );
+}
+
+export function MyAccountTab() {
+  const { staff, changePassword } = useAuth();
+  const [oldPw, setOldPw] = useState('');
+  const [newPw, setNewPw] = useState('');
+  const [msg, setMsg] = useState('');
+  const [err, setErr] = useState('');
+
+  const submitPw = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setErr('');
+    setMsg('');
+    try {
+      await changePassword(oldPw, newPw);
+      setMsg('Đã đổi mật khẩu');
+      setOldPw('');
+      setNewPw('');
+    } catch (e: any) {
+      setErr(e?.message || 'Lỗi');
+    }
+  };
+
+  const displayName = staff?.fullName?.trim() || staff?.email?.split('@')[0] || 'Tài khoản';
+
+  return (
+    <div className="page-stack">
+      <header className="page-header">
+        <h1 className="page-title">Tài khoản của tôi</h1>
+        <p className="page-desc">Thông tin đăng nhập và bảo mật cá nhân.</p>
+      </header>
+
+      <div className="card" style={{ padding: '1.25rem' }}>
+        <h2 className="section-title">Thông tin</h2>
+        <p style={{ margin: '0 0 0.25rem', fontWeight: 600 }}>{displayName}</p>
+        <p style={{ margin: 0, color: 'var(--text-muted)' }}>{staff?.email}</p>
+      </div>
 
       <div className="card" style={{ padding: '1.25rem' }}>
         <h2 className="section-title">Đổi mật khẩu</h2>
diff --git a/management/src/index.css b/management/src/index.css
index dc18732..8b91241 100644
--- a/management/src/index.css
+++ b/management/src/index.css
@@ -237,6 +237,51 @@ body {
   flex-shrink: 0;
 }
 
+.sidebar-user-btn {
+  width: 100%;
+  text-align: left;
+  border: 1px solid transparent;
+  border-radius: var(--radius-sm);
+  background: none;
+  padding: 0.5rem 0.6rem;
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  gap: 0.15rem;
+  transition: background 0.15s, border-color 0.15s;
+}
+
+.sidebar-user-btn:hover {
+  background: var(--bg-subtle);
+}
+
+.sidebar-user-btn.active {
+  background: var(--accent-light);
+  border-color: var(--accent);
+}
+
+.sidebar-user-btn.active .sidebar-user-name,
+.sidebar-user-btn.active .sidebar-user-email {
+  color: var(--accent);
+}
+
+.sidebar-user-name {
+  font-size: 0.82rem;
+  font-weight: 600;
+  color: var(--text-primary);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.sidebar-user-email {
+  font-size: 0.72rem;
+  color: var(--text-muted);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
 .token-badge {
   background-color: var(--bg-subtle);
   border: 1px solid var(--border-color);
diff --git a/management/src/navigation.ts b/management/src/navigation.ts
index 0915b00..eb0c2f6 100644
--- a/management/src/navigation.ts
+++ b/management/src/navigation.ts
@@ -1,4 +1,4 @@
-export type TabId = 'dashboard' | 'classes' | 'students' | 'learning' | 'network' | 'accounts';
+export type TabId = 'dashboard' | 'classes' | 'students' | 'learning' | 'network' | 'email-domains' | 'profile';
 
 export interface NavEntry {
   id: string;
@@ -15,20 +15,22 @@ export const TAB_LABELS: Record<TabId, string> = {
   students: 'Sinh viên',
   learning: 'Giám sát & Lịch học',
   network: 'Quản lý mạng',
-  accounts: 'Tài khoản',
+  'email-domains': 'Đuôi email',
+  profile: 'Tài khoản của tôi',
 };
 
 const HISTORY_KEY = 'sc_nav_history';
 const MAX_HISTORY = 10;
 
 function isTabId(value: string | null): value is TabId {
-  return value === 'dashboard' || value === 'classes' || value === 'students' || value === 'learning' || value === 'network' || value === 'accounts';
+  return value === 'dashboard' || value === 'classes' || value === 'students' || value === 'learning' || value === 'network' || value === 'email-domains' || value === 'profile';
 }
 
 export function parseRoute(): { tab: TabId; classId: number | null } {
   const params = new URLSearchParams(window.location.search);
   const tabParam = params.get('tab');
-  const tab: TabId = isTabId(tabParam) ? tabParam : 'dashboard';
+  let tab: TabId = isTabId(tabParam) ? tabParam : 'dashboard';
+  if (tabParam === 'accounts') tab = 'email-domains';
   const classIdRaw = params.get('classId');
   const classId = classIdRaw ? Number(classIdRaw) : null;
   return {