diff --git a/app/api/routers/rbac_admin.py b/app/api/routers/rbac_admin.py
index 453a93e..1f69cd4 100644
--- a/app/api/routers/rbac_admin.py
+++ b/app/api/routers/rbac_admin.py
@@ -317,3 +317,142 @@ async def review_park_transfer(
     await write_audit(db, action="opc.park_transfer_review", resource="park_transfer",
         resource_id=tid, detail=f"status={req.status}", user=actor, request=request)
     return {"ok": True, "transfer": updated}
+
+
+# ==================== 平台园区管理（operator；复用 park 数据层，不依赖 app.state.db） ====================
+
+class AdminBindDeviceBody(BaseModel):
+    tenant_id: str
+    name: str = ""
+    role: str = "main"
+    location: str = ""
+
+
+class AdminCreateTenantBody(BaseModel):
+    name: str
+    intro: list[str] = ["", ""]
+    username: str = ""
+    password: str = ""
+
+
+class AdminTenantStatusBody(BaseModel):
+    status: str  # active | disabled
+
+
+def _park_tenant_public(t: dict) -> dict:
+    """脱敏园区：剔除 auth(username/salt/password_hash)，仅留管理用字段。"""
+    return {k: t.get(k) for k in ("id", "name", "intro", "admin_username", "status")}
+
+
+@router.get("/park/screens", summary="全部屏幕（含未绑定+归属园区名，平台）")
+async def admin_park_screens(
+    db: Database = Depends(get_db),
+    _role: dict = Depends(require_roles("operator")),
+    _perm: dict = Depends(require_permission("menu:admin_user_mgmt")),
+):
+    from app.park import tenants as tnt
+    return {"items": await tnt.list_all_screens()}
+
+
+@router.get("/park/tenants", summary="园区列表（脱敏，平台）")
+async def admin_park_tenants(
+    db: Database = Depends(get_db),
+    _role: dict = Depends(require_roles("operator")),
+    _perm: dict = Depends(require_permission("menu:admin_user_mgmt")),
+):
+    from app.park import tenants as tnt
+    rows = await tnt.list_tenants()
+    return {"items": [_park_tenant_public(t) for t in rows]}
+
+
+@router.post("/park/tenants", summary="平台创建园区")
+async def admin_park_create_tenant(
+    body: AdminCreateTenantBody,
+    request: Request,
+    db: Database = Depends(get_db),
+    actor: dict = Depends(require_permission("action:user.manage")),
+):
+    from app.park import tenants as tnt
+    t = await tnt.create_tenant(body.name, body.intro, body.username, body.password)
+    await write_audit(db, action="park.create", resource="park_tenant",
+        resource_id=(t or {}).get("id", ""), detail=body.name, user=actor, request=request)
+    return {"ok": True, "tenant": _park_tenant_public(t or {})}
+
+
+@router.delete("/park/tenants/{tid}", summary="平台删除园区（级联删屏）")
+async def admin_park_delete_tenant(
+    tid: str,
+    request: Request,
+    db: Database = Depends(get_db),
+    actor: dict = Depends(require_permission("action:user.manage")),
+):
+    from app.park import tenants as tnt
+    ok = await tnt.delete_tenant(tid)
+    if not ok:
+        raise HTTPException(status_code=404, detail="园区不存在")
+    await write_audit(db, action="park.delete", resource="park_tenant",
+        resource_id=tid, detail=tid, user=actor, request=request)
+    return {"ok": True}
+
+
+@router.post("/park/tenants/{tid}/status", summary="平台停用/启用园区")
+async def admin_park_tenant_status(
+    tid: str,
+    body: AdminTenantStatusBody,
+    request: Request,
+    db: Database = Depends(get_db),
+    actor: dict = Depends(require_permission("action:user.manage")),
+):
+    from app.park import tenants as tnt
+    if body.status not in ("active", "disabled"):
+        raise HTTPException(status_code=400, detail="无效状态")
+    ok = await tnt.set_status(tid, body.status)
+    if not ok:
+        raise HTTPException(status_code=404, detail="园区不存在")
+    await write_audit(db, action="park.status", resource="park_tenant",
+        resource_id=tid, detail=body.status, user=actor, request=request)
+    return {"ok": True, "status": body.status}
+
+
+@router.post("/park/devices/{device_id}/bind", summary="平台手动绑定屏幕到园区")
+async def admin_park_bind_device(
+    device_id: str,
+    body: AdminBindDeviceBody,
+    request: Request,
+    db: Database = Depends(get_db),
+    actor: dict = Depends(require_permission("action:user.manage")),
+):
+    from app.park import tenants as tnt
+    tenant = await tnt.get_tenant(body.tenant_id)
+    if tenant is None:
+        raise HTTPException(status_code=404, detail="目标园区不存在")
+    dev = await tnt.get_device_by_id(device_id)
+    if dev is None:
+        raise HTTPException(status_code=404, detail="屏幕不存在")
+    if dev.get("status") == "bound" and dev.get("tenant_id") and dev.get("tenant_id") != body.tenant_id:
+        raise HTTPException(status_code=400, detail="该屏幕已绑定到其它园区，请先解绑")
+    updated = await tnt.bind_device(body.tenant_id, device_id, body.name, body.role, body.location)
+    await write_audit(db, action="park.bind_screen", resource="park_screen",
+        resource_id=device_id, detail=f"tid={body.tenant_id}", user=actor, request=request)
+    return {"ok": True, "screen": updated}
+
+
+@router.post("/park/devices/{device_id}/unbind", summary="平台解绑屏幕（从园区解绑，回未绑定）")
+async def admin_park_unbind_device(
+    device_id: str,
+    request: Request,
+    db: Database = Depends(get_db),
+    actor: dict = Depends(require_permission("action:user.manage")),
+):
+    from app.park import tenants as tnt
+    dev = await tnt.get_device_by_id(device_id)
+    if dev is None:
+        raise HTTPException(status_code=404, detail="屏幕不存在")
+    if dev.get("status") != "bound":
+        raise HTTPException(status_code=400, detail="该屏幕当前未绑定，无需解绑")
+    ok = await tnt.unbind_device(device_id)
+    if not ok:
+        raise HTTPException(status_code=500, detail="解绑失败")
+    await write_audit(db, action="park.unbind_screen", resource="park_screen",
+        resource_id=device_id, detail=f"from tid={dev.get('tenant_id')}", user=actor, request=request)
+    return {"ok": True}
diff --git a/app/park/routers.py b/app/park/routers.py
index 02f0ae0..926d8f1 100644
--- a/app/park/routers.py
+++ b/app/park/routers.py
@@ -21,7 +21,8 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from ..infrastructure.db import get_session
 from ..infrastructure.repositories import TaskRepository
-from ..rbac import require_roles, write_audit
+from ..jwt import decode_access_token
+from ..rbac import write_audit
 from ..api.schemas.admin import ParkAdmissionReviewRequest, ParkTransferReviewRequest
 from . import park_config, tenants
 from .auth import create_device_token, create_token, parse_device_token, parse_token, require_tenant
@@ -148,6 +149,8 @@ async def tenant_bind(tid: str, body: BindBody):
     if user is None:
         return JSONResponse({"ok": False, "error": "账号不存在"}, status_code=404)
     ok = await tenants.bind_admin(tid, body.username.strip(), operator_user_id=user_id)
+    # 绑定即成为该园区的载体方(carrier)：账号单一角色，由后台绑定设置（登录后按 carrier 进园区工作台）。
+    await db.users.set_role(user_id, "carrier", None, None, None)
     return {"ok": ok, "tenant_id": tid, "admin_username": body.username.strip()}
 
 
@@ -881,19 +884,54 @@ async def _carrier_db():
         await db.close()
 
 
+async def _carrier_user(request: Request) -> dict:
+    """园区端鉴权（平台一套）：解析平台 Bearer 登录令牌，要求业务角色 carrier（载体方）。
+
+    park 子应用挂在 dispatcher 下，request.app.state.db 未设置，故不能用平台 require_roles
+    （它读 app.state.db）；这里直接 decode_access_token 验证 + role=carrier。
+    园区端管理员以平台 carrier 身份登录进入，不另立 park-token 鉴权。
+    """
+    auth = request.headers.get("authorization", "")
+    if not auth.startswith("Bearer "):
+        raise HTTPException(status_code=401, detail="缺少登录令牌")
+    payload = decode_access_token(auth.split(" ", 1)[1])
+    if not payload:
+        raise HTTPException(status_code=401, detail="令牌无效或已过期")
+    if payload.get("role") != "carrier":
+        raise HTTPException(status_code=403, detail="仅园区载体方可访问")
+    return {"id": payload.get("sub", ""), "username": payload.get("username", ""), "role": "carrier"}
+
+
 async def _my_park(user: dict) -> dict:
-    """当前 carrier 账号关联的园区（operator_user_id），未关联则拒。"""
+    """当前 carrier 账号关联的园区，未关联则拒。
+
+    主键 operator_user_id（绑定园区管理员时写入）；兜底用 username 匹配
+    park_tenants.admin_username（历史/种子创建的园区管理员，operator_user_id 未回填）。
+    """
     t = await tenants.find_by_operator_user_id(user["id"])
+    if not t and user.get("username"):
+        t = await tenants.find_by_admin(user["username"])
     if not t:
         raise HTTPException(status_code=403, detail="该账号未关联任何园区")
     return t
 
 
-@router.get("/api/park-admissions", summary="园区入驻申请（本园区, carrier）")
+
+
+@router.get("/api/my-tenant", summary="当前 carrier 绑定园区")
+async def my_tenant(
+    db=Depends(_carrier_db),
+    user: dict = Depends(_carrier_user),
+):
+    t = await _my_park(user)
+    return {"ok": True, "tenant": {"id": t["id"], "name": t.get("name", ""), "intro": t.get("intro", [])}}
+
+
+@router.get("/api/park-admissions", summary="园区入驻申请（本园区, 平台 carrier 身份）")
 async def carrier_park_admissions(
     status: str = "",
     db=Depends(_carrier_db),
-    user: dict = Depends(require_roles("carrier")),
+    user: dict = Depends(_carrier_user),
 ):
     t = await _my_park(user)
     return {"items": await db.park_admissions.list(status or None, tenant_id=t["id"])}
@@ -905,7 +943,7 @@ async def carrier_park_admission_review(
     body: ParkAdmissionReviewRequest,
     request: Request,
     db=Depends(_carrier_db),
-    user: dict = Depends(require_roles("carrier")),
+    user: dict = Depends(_carrier_user),
 ):
     t = await _my_park(user)
     adm = await db.park_admissions.get(aid)
@@ -926,11 +964,11 @@ async def carrier_park_admission_review(
     return {"ok": True, "admission": updated}
 
 
-@router.get("/api/park-transfers", summary="OPC 转园申请（本园区相关, carrier）")
+@router.get("/api/park-transfers", summary="OPC 转园申请（本园区相关, 平台 carrier 身份）")
 async def carrier_park_transfers(
     status: str = "",
     db=Depends(_carrier_db),
-    user: dict = Depends(require_roles("carrier")),
+    user: dict = Depends(_carrier_user),
 ):
     t = await _my_park(user)
     return {"items": await db.park_transfers.list(status or None, park_id=t["id"])}
@@ -942,7 +980,7 @@ async def carrier_park_transfer_review(
     body: ParkTransferReviewRequest,
     request: Request,
     db=Depends(_carrier_db),
-    user: dict = Depends(require_roles("carrier")),
+    user: dict = Depends(_carrier_user),
 ):
     t = await _my_park(user)
     tr = await db.park_transfers.get(tid)
diff --git a/app/park/tenants.py b/app/park/tenants.py
index a48ba4a..7093273 100644
--- a/app/park/tenants.py
+++ b/app/park/tenants.py
@@ -401,6 +401,33 @@ async def list_screens(tenant_id: str) -> list[dict]:
         return [_sc(r) for r in rows]
 
 
+def _online_device_ids() -> set[str]:
+    """当前在线大屏 device_id 集合（MQTT 心跳，最近 SCREEN_TTL 内上报）。"""
+    try:
+        from .mqtt import hub
+        return set(hub._online_ids())
+    except Exception:  # noqa: BLE001
+        return set()
+
+
+async def list_all_screens() -> list[dict]:
+    """全部屏幕（含未绑定，tenant_id=None），带归属园区名 + 在线状态。平台端屏幕管理用。"""
+    async with _get_session() as s:
+        rows = (await s.execute(
+            select(ParkScreen, ParkTenant.name)
+            .outerjoin(ParkTenant, ParkTenant.id == ParkScreen.tenant_id)
+            .order_by(ParkScreen.status, ParkScreen.created_at.desc())
+        )).all()
+        online = _online_device_ids()
+        out = []
+        for r, tname in rows:
+            d = _sc(r)
+            d["tenant_name"] = tname or ""
+            d["online"] = bool(d.get("device_id")) and d["device_id"] in online
+            out.append(d)
+        return out
+
+
 async def create_screen(tenant_id: str, payload: dict) -> dict:
     row = ParkScreen(id=_new_id("SCR"), tenant_id=tenant_id, device_id=payload.get("device_id", ""),
                      name=payload.get("name", ""), role=payload.get("role", "main"),