diff --git a/web/src/App.tsx b/web/src/App.tsx
index d342f3d5..1c864c36 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -653,14 +653,21 @@ export default function App() {
   const [docVisibilityModalOpen, setDocVisibilityModalOpen] = useState(false);
   const [targetDocForVisibility, setTargetDocForVisibility] = useState<DeliverableItem | null>(null);
 
+  const [capabilities, setCapabilities] = useState<string[]>(() => authClient.getCapabilities());
+
   useEffect(() => {
     authClient.getSystemAuthConfig().then(setSystemAuthConfig).catch(() => {});
     const saved = authClient.loadSavedSession();
     if (saved) {
       setSession(saved);
       if (saved.env) setSystemEnv(saved.env);
+      setCapabilities(saved.capabilities ?? []);
       const match = allUsers.find((u) => u.id === saved.user.id);
       setCurrentUser(mergeSessionUser(saved.user, match));
+      void authClient.fetchMe().then((me) => {
+        setCapabilities(me.capabilities ?? []);
+        setCurrentUser(mergeSessionUser(me.user, match));
+      }).catch(() => {});
     }
   }, []);
 
@@ -741,19 +748,19 @@ export default function App() {
 
   // 核心功能权限计算
   const canCreateProject = useMemo(() => {
-    return hasPermission(currentUser, roles, 'project:create');
-  }, [currentUser, roles]);
+    return hasPermission(currentUser, roles, 'project:create', capabilities);
+  }, [currentUser, roles, capabilities]);
 
   const canAssignLead = useMemo(() => {
-    return hasPermission(currentUser, roles, 'project:assign_lead');
-  }, [currentUser, roles]);
+    return hasPermission(currentUser, roles, 'project:assign_lead', capabilities);
+  }, [currentUser, roles, capabilities]);
 
   const canOverrideVisibility = useMemo(() => {
     return (
-      hasPermission(currentUser, roles, 'doc:override_visibility') ||
-      hasPermission(currentUser, roles, 'perm:manage')
+      hasPermission(currentUser, roles, 'doc:override_visibility', capabilities) ||
+      hasPermission(currentUser, roles, 'perm:manage', capabilities)
     );
-  }, [currentUser, roles]);
+  }, [currentUser, roles, capabilities]);
 
   // 项目多工作流激活状态与文档血缘 (支持前端切换与状态联动)
   const [projectWorkflowsState, setProjectWorkflowsState] = useState<
@@ -3035,6 +3042,7 @@ export default function App() {
       <LoginView
         onLoginSuccess={(newSession) => {
           setSession(newSession);
+          setCapabilities(newSession.capabilities ?? []);
           if (newSession.env) setSystemEnv(newSession.env);
           const match = allUsers.find((u) => u.id === newSession.user.id);
           setCurrentUser(mergeSessionUser(newSession.user, match));
diff --git a/web/src/api/auth.ts b/web/src/api/auth.ts
index f6866521..8ca50eae 100644
--- a/web/src/api/auth.ts
+++ b/web/src/api/auth.ts
@@ -7,6 +7,7 @@ import {
   RegisterResult,
   CreateAdminUserPayload,
   AccountStatus,
+  MeResult,
 } from '../types/auth';
 
 const AUTH_STORAGE_KEY_SESSION = 'smdf_auth_session';
@@ -34,6 +35,32 @@ async function apiFetch(path: string, init?: RequestInit): Promise<Response> {
 export class AuthClient {
   constructor(_options?: AuthClientOptions) {}
 
+  async fetchMe(): Promise<MeResult> {
+    const token = this.getSessionToken();
+    const resp = await apiFetch('/api/v1/auth/me', {
+      headers: token ? { Authorization: `Bearer ${token}` } : {},
+    });
+    if (!resp.ok) {
+      throw new Error('会话已过期或未登录');
+    }
+    const data: MeResult = await resp.json();
+    const saved = this.loadSavedSession();
+    if (saved && data.user) {
+      this.saveSession({
+        ...saved,
+        user: data.user,
+        env: data.env ?? saved.env,
+        mustChangePassword: data.must_change_password ?? saved.mustChangePassword,
+        capabilities: data.capabilities ?? [],
+      });
+    }
+    return data;
+  }
+
+  getCapabilities(): string[] {
+    return this.loadSavedSession()?.capabilities ?? [];
+  }
+
   async login(payload: LoginPayload): Promise<LoginResult> {
     const trimmedUser = payload.username.trim();
     if (!trimmedUser || !payload.password) {
@@ -50,6 +77,13 @@ export class AuthClient {
     }
     const data: LoginResult = await resp.json();
     this.saveSession(data);
+    try {
+      const me = await this.fetchMe();
+      data.capabilities = me.capabilities;
+      data.user = me.user;
+    } catch {
+      // login 已成功；capabilities 可在后续 refresh 补齐
+    }
     return data;
   }
 
diff --git a/web/src/engine/rbac.ts b/web/src/engine/rbac.ts
index 311d1481..b79eb711 100644
--- a/web/src/engine/rbac.ts
+++ b/web/src/engine/rbac.ts
@@ -80,14 +80,23 @@ export const DEFAULT_ROLES: RoleDefinition[] = [
 ];
 
 /**
- * 判定用户是否具备指定全局功能权限
+ * 判定用户是否具备指定全局功能权限。
+ * capabilities 来自服务端 /auth/me 时为权威来源；roles 仅作 UI 兜底（deprecated）。
  */
 export function hasPermission(
   user: UserProfile,
   roles: RoleDefinition[],
-  permKey: PermissionKey
+  permKey: PermissionKey,
+  capabilities?: string[]
 ): boolean {
-  // 1. 查找用户角色定义
+  if (capabilities && capabilities.length > 0) {
+    if (capabilities.includes('perm:manage')) {
+      return true;
+    }
+    return capabilities.includes(permKey);
+  }
+
+  // 1. 查找用户角色定义（localStorage 兜底，deprecated）
   const role = roles.find((r) => r.id === user.roleId);
 
   // 2. 超级管理员拥有全量特权通配
diff --git a/web/src/types/auth.ts b/web/src/types/auth.ts
index 6f1cf9e6..3b3c4bce 100644
--- a/web/src/types/auth.ts
+++ b/web/src/types/auth.ts
@@ -26,6 +26,14 @@ export interface LoginResult {
   user: UserAccount;
   mustChangePassword?: boolean;
   env: string;
+  capabilities?: string[];
+}
+
+export interface MeResult {
+  user: UserAccount;
+  must_change_password?: boolean;
+  env: string;
+  capabilities: string[];
 }
 
 export interface RegisterPayload {