diff --git a/.gitignore b/.gitignore
index 9368ade..19ca86c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .venv/
 __pycache__/
+*/__pycache__
 *.pyc
 
 # 运行时数据
diff --git a/web/backend/__pycache__/database.cpython-312.pyc b/web/backend/__pycache__/database.cpython-312.pyc
index 537e6ee..562d44a 100644
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diff --git a/web/backend/__pycache__/deps.cpython-312.pyc b/web/backend/__pycache__/deps.cpython-312.pyc
index 2563ff6..fae3d62 100644
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diff --git a/web/backend/__pycache__/models.cpython-312.pyc b/web/backend/__pycache__/models.cpython-312.pyc
index 90d7e0b..1f10992 100644
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diff --git a/web/backend/__pycache__/permissions.cpython-312.pyc b/web/backend/__pycache__/permissions.cpython-312.pyc
index c92afda..5375917 100644
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diff --git a/web/backend/__pycache__/schemas.cpython-312.pyc b/web/backend/__pycache__/schemas.cpython-312.pyc
index 1dcce47..0239c89 100644
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diff --git a/web/backend/database.py b/web/backend/database.py
index 2cdaa23..8bd0a3a 100644
--- a/web/backend/database.py
+++ b/web/backend/database.py
@@ -44,6 +44,13 @@ def _migrate():
             conn.execute(text("ALTER TABLE accounts ADD COLUMN tag VARCHAR(64) DEFAULT ''"))
             conn.commit()
 
+        # 检查 users.custom_permissions 列是否存在
+        result = conn.execute(text("PRAGMA table_info(users)"))
+        columns = [row[1] for row in result]
+        if 'custom_permissions' not in columns:
+            conn.execute(text("ALTER TABLE users ADD COLUMN custom_permissions JSON DEFAULT NULL"))
+            conn.commit()
+
 
 def _seed():
     """写入默认超管账号和角色。"""
diff --git a/web/backend/deps.py b/web/backend/deps.py
index 91f856a..6498b9d 100644
--- a/web/backend/deps.py
+++ b/web/backend/deps.py
@@ -8,7 +8,7 @@ from jose import JWTError
 from .database import get_db
 from .security import decode_access_token
 from .models import User
-from .permissions import get_role_permissions
+from .permissions import get_user_permissions
 
 oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
 
@@ -43,7 +43,7 @@ def require_permission(permission: str):
     def checker(current_user: User = Depends(get_current_user)) -> User:
         if not current_user.is_active:
             raise HTTPException(status_code=403, detail="账号已禁用")
-        perms = get_role_permissions(current_user.role)
+        perms = get_user_permissions(current_user)
         if permission not in perms:
             raise HTTPException(status_code=403, detail=f"无权限: {permission}")
         return current_user
diff --git a/web/backend/models.py b/web/backend/models.py
index 95ee8ef..188a53c 100644
--- a/web/backend/models.py
+++ b/web/backend/models.py
@@ -18,6 +18,7 @@ class User(Base):
     role = Column(String(32), nullable=False, default="support")  # super_admin / operation / support
     is_active = Column(Boolean, default=True)
     remark = Column(String(256), default="")
+    custom_permissions = Column(JSON, nullable=True, comment="自定义权限列表，null表示使用角色默认权限")
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
diff --git a/web/backend/permissions.py b/web/backend/permissions.py
index 686cac1..0c44b91 100644
--- a/web/backend/permissions.py
+++ b/web/backend/permissions.py
@@ -48,7 +48,6 @@ ROLE_PERMISSIONS = {
     ],
     "support": [
         "account:view_assigned",
-        "login:view_assigned",
     ],
 }
 
@@ -65,6 +64,16 @@ def get_role_permissions(role: str) -> list[str]:
     return ROLE_PERMISSIONS.get(role, [])
 
 
+def get_user_permissions(user) -> list[str]:
+    """获取用户的实际权限列表。
+    优先使用用户自定义权限（custom_permissions），
+    若为 None 则回退到角色默认权限。
+    """
+    if user.custom_permissions is not None:
+        return user.custom_permissions
+    return get_role_permissions(user.role)
+
+
 def has_permission(role: str, permission: str) -> bool:
     """检查角色是否拥有某权限。"""
     return permission in get_role_permissions(role)
diff --git a/web/backend/routers/__pycache__/auth.cpython-312.pyc b/web/backend/routers/__pycache__/auth.cpython-312.pyc
index c7b98e2..63b3864 100644
Binary files a/web/backend/routers/__pycache__/auth.cpython-312.pyc and b/web/backend/routers/__pycache__/auth.cpython-312.pyc differ
diff --git a/web/backend/routers/__pycache__/users.cpython-312.pyc b/web/backend/routers/__pycache__/users.cpython-312.pyc
index 59250bf..109c854 100644
Binary files a/web/backend/routers/__pycache__/users.cpython-312.pyc and b/web/backend/routers/__pycache__/users.cpython-312.pyc differ
diff --git a/web/backend/routers/auth.py b/web/backend/routers/auth.py
index 81d2bc6..c912cd9 100644
--- a/web/backend/routers/auth.py
+++ b/web/backend/routers/auth.py
@@ -7,7 +7,7 @@ from sqlalchemy.orm import Session
 from ..database import get_db
 from ..models import User, AuditLog
 from ..security import verify_password, create_access_token
-from ..permissions import get_role_permissions, ROLE_LABELS
+from ..permissions import get_user_permissions, ROLE_LABELS
 from ..schemas import LoginRequest, TokenResponse
 from ..deps import get_current_user
 
@@ -23,7 +23,7 @@ def login(req: LoginRequest, db: Session = Depends(get_db)):
         raise HTTPException(status_code=403, detail="账号已禁用，请联系管理员")
 
     token = create_access_token({"sub": str(user.id), "role": user.role})
-    perms = get_role_permissions(user.role)
+    perms = get_user_permissions(user)
 
     # 审计
     db.add(AuditLog(user_id=user.id, username=user.username, action="login", target="auth"))
@@ -46,7 +46,7 @@ def me(current_user: User = Depends(get_current_user)):
         "role_label": ROLE_LABELS.get(current_user.role, current_user.role),
         "is_active": current_user.is_active,
         "remark": current_user.remark,
-        "permissions": get_role_permissions(current_user.role),
+        "permissions": get_user_permissions(current_user),
     }
 
 
diff --git a/web/backend/routers/users.py b/web/backend/routers/users.py
index 2cda1dc..55f235e 100644
--- a/web/backend/routers/users.py
+++ b/web/backend/routers/users.py
@@ -6,7 +6,7 @@ from sqlalchemy.orm import Session
 from ..database import get_db
 from ..models import User, AuditLog
 from ..security import hash_password
-from ..permissions import ROLE_LABELS, get_role_permissions
+from ..permissions import ROLE_LABELS, PERMISSIONS, get_user_permissions
 from ..schemas import UserCreate, UserUpdate, UserInfo
 from ..deps import require_permission, get_current_user
 
@@ -28,7 +28,8 @@ def list_users(
             is_active=u.is_active,
             remark=u.remark or "",
             created_at=u.created_at,
-            permissions=get_role_permissions(u.role),
+            permissions=get_user_permissions(u),
+            custom_permissions=u.custom_permissions,
         ))
     return result
 
@@ -60,7 +61,8 @@ def create_user(
     return UserInfo(
         id=user.id, username=user.username, role=user.role,
         is_active=user.is_active, remark=user.remark or "",
-        permissions=get_role_permissions(user.role),
+        permissions=get_user_permissions(user),
+        custom_permissions=user.custom_permissions,
     )
 
 
@@ -83,6 +85,8 @@ def update_user(
         user.is_active = req.is_active
     if req.remark is not None:
         user.remark = req.remark
+    if req.custom_permissions is not None:
+        user.custom_permissions = req.custom_permissions
 
     db.commit()
     db.refresh(user)
@@ -94,7 +98,8 @@ def update_user(
     return UserInfo(
         id=user.id, username=user.username, role=user.role,
         is_active=user.is_active, remark=user.remark or "",
-        permissions=get_role_permissions(user.role),
+        permissions=get_user_permissions(user),
+        custom_permissions=user.custom_permissions,
     )
 
 
@@ -115,3 +120,13 @@ def delete_user(
     db.delete(user)
     db.commit()
     return {"message": "已删除", "success": True}
+
+
+@router.get("/permissions/list")
+def list_permissions(_: User = Depends(require_permission("user:assign_permissions"))):
+    """返回所有可用权限点及角色默认权限映射。"""
+    from ..permissions import ROLE_PERMISSIONS
+    return {
+        "permissions": PERMISSIONS,
+        "role_permissions": ROLE_PERMISSIONS,
+    }
diff --git a/web/backend/schemas.py b/web/backend/schemas.py
index 1edaed3..e713aa9 100644
--- a/web/backend/schemas.py
+++ b/web/backend/schemas.py
@@ -27,6 +27,7 @@ class UserInfo(BaseModel):
     remark: str = ""
     created_at: Optional[datetime] = None
     permissions: list[str] = []
+    custom_permissions: Optional[list[str]] = None
 
     class Config:
         from_attributes = True
@@ -45,6 +46,7 @@ class UserUpdate(BaseModel):
     role: Optional[str] = None
     is_active: Optional[bool] = None
     remark: Optional[str] = None
+    custom_permissions: Optional[list[str]] = None
 
 
 # ---- 账号 ----
diff --git a/web/frontend/src/api/modules.ts b/web/frontend/src/api/modules.ts
index ef72bce..5024547 100644
--- a/web/frontend/src/api/modules.ts
+++ b/web/frontend/src/api/modules.ts
@@ -15,6 +15,7 @@ export interface UserInfo {
   is_active: boolean;
   remark: string;
   permissions: string[];
+  custom_permissions?: string[] | null;
 }
 
 export const authApi = {
@@ -30,9 +31,10 @@ export const userApi = {
   list: () => api.get<any, UserInfo[]>('/users'),
   create: (data: { username: string; password: string; role: string; remark?: string }) =>
     api.post<any, UserInfo>('/users', data),
-  update: (id: number, data: { password?: string; role?: string; is_active?: boolean; remark?: string }) =>
+  update: (id: number, data: { password?: string; role?: string; is_active?: boolean; remark?: string; custom_permissions?: string[] | null }) =>
     api.put<any, UserInfo>(`/users/${id}`, data),
   delete: (id: number) => api.delete<any, any>(`/users/${id}`),
+  listPermissions: () => api.get<any, any>('/users/permissions/list'),
 };
 
 export const accountApi = {
diff --git a/web/frontend/src/layouts/MainLayout.tsx b/web/frontend/src/layouts/MainLayout.tsx
index c9f23c1..5d4bc3c 100644
--- a/web/frontend/src/layouts/MainLayout.tsx
+++ b/web/frontend/src/layouts/MainLayout.tsx
@@ -46,7 +46,7 @@ export default function MainLayout({ onLogout }: { onLogout?: () => void }) {
   }
 
   // 登录任务
-  if (hasPerm(user, 'login:batch') || hasPerm(user, 'login:view_assigned')) {
+  if (hasPerm(user, 'login:batch') || hasPerm(user, 'login:view_all')) {
     menuItems.push({ key: '/login-tasks', label: '登录任务', icon: <ApiOutlined /> });
   }
 
diff --git a/web/frontend/src/pages/UsersPage.tsx b/web/frontend/src/pages/UsersPage.tsx
index a0f2dea..6dff2a6 100644
--- a/web/frontend/src/pages/UsersPage.tsx
+++ b/web/frontend/src/pages/UsersPage.tsx
@@ -1,9 +1,11 @@
 import { useEffect, useState } from 'react';
 import {
   Table, Button, Modal, Form, Input, Select, Tag, Popconfirm, message, Space,
+  Checkbox, Divider, Alert, Tooltip,
 } from 'antd';
-import { PlusOutlined, EditOutlined, DeleteOutlined } from '@ant-design/icons';
+import { PlusOutlined, EditOutlined, DeleteOutlined, SafetyOutlined } from '@ant-design/icons';
 import { userApi, type UserInfo } from '../api/modules';
+import { getUser, hasPerm } from '../store/auth';
 
 const ROLE_OPTIONS = [
   { value: 'super_admin', label: '超级管理员' },
@@ -17,6 +19,21 @@ const ROLE_COLORS: Record<string, string> = {
   support: 'green',
 };
 
+// 权限分组定义
+const PERMISSION_GROUPS = [
+  { label: '用户管理', prefix: 'user:' },
+  { label: '账号管理', prefix: 'account:' },
+  { label: '登录任务', prefix: 'login:' },
+  { label: 'Cookie', prefix: 'cookie:' },
+  { label: '代理 & 白名单', prefix: ['proxy:', 'whitelist:'] },
+  { label: '系统', prefix: ['system:', 'audit:'] },
+];
+
+function isPrefixMatch(key: string, prefix: string | string[]): boolean {
+  if (Array.isArray(prefix)) return prefix.some(p => key.startsWith(p));
+  return key.startsWith(prefix);
+}
+
 export default function UsersPage() {
   const [users, setUsers] = useState<UserInfo[]>([]);
   const [loading, setLoading] = useState(false);
@@ -24,6 +41,17 @@ export default function UsersPage() {
   const [editing, setEditing] = useState<UserInfo | null>(null);
   const [form] = Form.useForm();
 
+  // 权限管理
+  const [permModalOpen, setPermModalOpen] = useState(false);
+  const [permUser, setPermUser] = useState<UserInfo | null>(null);
+  const [permList, setPermList] = useState<Record<string, string>>({});
+  const [rolePermMap, setRolePermMap] = useState<Record<string, string[]>>({});
+  const [selectedPerms, setSelectedPerms] = useState<string[]>([]);
+  const [useCustom, setUseCustom] = useState(false);
+  const [permLoading, setPermLoading] = useState(false);
+
+  const canAssignPerm = hasPerm(getUser(), 'user:assign_permissions');
+
   const loadUsers = async () => {
     setLoading(true);
     try {
@@ -86,6 +114,52 @@ export default function UsersPage() {
     }
   };
 
+  // ---- 权限管理 ----
+  const handlePermClick = async (user: UserInfo) => {
+    setPermUser(user);
+    setPermModalOpen(true);
+    setPermLoading(true);
+    try {
+      const data = await userApi.listPermissions();
+      setPermList(data.permissions || {});
+      setRolePermMap(data.role_permissions || {});
+      // 初始化选中权限：如果用户有 custom_permissions 则使用，否则使用角色默认
+      if (user.custom_permissions !== null && user.custom_permissions !== undefined) {
+        setUseCustom(true);
+        setSelectedPerms(user.custom_permissions);
+      } else {
+        setUseCustom(false);
+        setSelectedPerms(data.role_permissions?.[user.role] || []);
+      }
+    } catch (e: any) {
+      message.error(e.message);
+    } finally {
+      setPermLoading(false);
+    }
+  };
+
+  const handlePermSave = async () => {
+    if (!permUser) return;
+    setPermLoading(true);
+    try {
+      await userApi.update(permUser.id, {
+        custom_permissions: useCustom ? selectedPerms : null,
+      });
+      message.success('权限已更新');
+      setPermModalOpen(false);
+      loadUsers();
+    } catch (e: any) {
+      message.error(e.message);
+    } finally {
+      setPermLoading(false);
+    }
+  };
+
+  const handleRoleChangeForPerm = (role: string) => {
+    const rolePerms = rolePermMap[role] || [];
+    setSelectedPerms(rolePerms);
+  };
+
   const columns = [
     { title: 'ID', dataIndex: 'id', width: 60 },
     { title: '用户名', dataIndex: 'username' },
@@ -97,18 +171,33 @@ export default function UsersPage() {
         return <Tag color={ROLE_COLORS[role] || 'default'}>{label}</Tag>;
       },
     },
+    {
+      title: '权限模式',
+      dataIndex: 'custom_permissions',
+      width: 100,
+      render: (_: any, record: UserInfo) =>
+        record.custom_permissions !== null && record.custom_permissions !== undefined
+          ? <Tag color="orange">自定义</Tag>
+          : <Tag>角色默认</Tag>,
+    },
     {
       title: '状态',
       dataIndex: 'is_active',
+      width: 80,
       render: (active: boolean) => active ? <Tag color="green">启用</Tag> : <Tag>禁用</Tag>,
     },
-    { title: '备注', dataIndex: 'remark' },
+    { title: '备注', dataIndex: 'remark', ellipsis: true },
     {
       title: '操作',
-      width: 160,
+      width: 200,
       render: (_: any, record: UserInfo) => (
         <Space>
           <Button size="small" icon={<EditOutlined />} onClick={() => handleEdit(record)}>编辑</Button>
+          {canAssignPerm && (
+            <Tooltip title="权限管理">
+              <Button size="small" icon={<SafetyOutlined />} onClick={() => handlePermClick(record)}>权限</Button>
+            </Tooltip>
+          )}
           {record.role !== 'super_admin' && (
             <Popconfirm title="确认删除？" onConfirm={() => handleDelete(record.id)}>
               <Button danger size="small" icon={<DeleteOutlined />}>删除</Button>
@@ -133,6 +222,8 @@ export default function UsersPage() {
         size="small"
         pagination={{ pageSize: 20 }}
       />
+
+      {/* 编辑/新建用户 Modal */}
       <Modal
         title={editing ? '编辑用户' : '新建用户'}
         open={modalOpen}
@@ -159,6 +250,84 @@ export default function UsersPage() {
           </Form.Item>
         </Form>
       </Modal>
+
+      {/* 权限管理 Modal */}
+      <Modal
+        title={permUser ? `权限管理 - ${permUser.username}` : '权限管理'}
+        open={permModalOpen}
+        onCancel={() => setPermModalOpen(false)}
+        onOk={handlePermSave}
+        okText="保存"
+        width={640}
+        confirmLoading={permLoading}
+      >
+        {permUser && (
+          <>
+            <Alert
+              message={
+                useCustom
+                  ? '当前使用自定义权限，修改角色不会自动更新权限'
+                  : '当前使用角色默认权限，修改角色后权限会自动跟随'
+              }
+              type={useCustom ? 'warning' : 'info'}
+              showIcon
+              style={{ marginBottom: 16 }}
+            />
+            <div style={{ marginBottom: 16 }}>
+              <span>权限模式：</span>
+              <Select
+                value={useCustom ? 'custom' : 'role'}
+                style={{ width: 140 }}
+                onChange={(v) => {
+                  if (v === 'role') {
+                    setUseCustom(false);
+                    setSelectedPerms(rolePermMap[permUser.role] || []);
+                  } else {
+                    setUseCustom(true);
+                  }
+                }}
+                options={[
+                  { value: 'role', label: '角色默认' },
+                  { value: 'custom', label: '自定义' },
+                ]}
+              />
+              {useCustom && (
+                <Button
+                  type="link"
+                  size="small"
+                  onClick={() => handleRoleChangeForPerm(permUser.role)}
+                >
+                  重置为角色默认
+                </Button>
+              )}
+            </div>
+            <Checkbox.Group
+              value={selectedPerms}
+              onChange={(vals) => setSelectedPerms(vals as string[])}
+              disabled={!useCustom}
+            >
+              {PERMISSION_GROUPS.map((group) => {
+                const groupKeys = Object.keys(permList).filter(k => isPrefixMatch(k, group.prefix));
+                if (groupKeys.length === 0) return null;
+                return (
+                  <div key={group.label} style={{ marginBottom: 12 }}>
+                    <Divider orientation="left" style={{ margin: '8px 0 12px' }}>
+                      {group.label}
+                    </Divider>
+                    <div style={{ display: 'flex', flexWrap: 'wrap', gap: '8px 24px' }}>
+                      {groupKeys.map(key => (
+                        <Checkbox key={key} value={key}>
+                          {permList[key]}
+                        </Checkbox>
+                      ))}
+                    </div>
+                  </div>
+                );
+              })}
+            </Checkbox.Group>
+          </>
+        )}
+      </Modal>
     </div>
   );
-}
+}
\ No newline at end of file