diff --git a/backend/app/api/v1/endpoints/screen.py b/backend/app/api/v1/endpoints/screen.py
new file mode 100644
index 0000000..7455682
--- /dev/null
+++ b/backend/app/api/v1/endpoints/screen.py
@@ -0,0 +1,52 @@
+"""大屏 API — 面向管理层**日常运营与督导**的轻量聚合接口
+
+视角：当月吞吐 / 当前卡点 / 系统活跃度。
+
+与 /dashboard 的区别：/dashboard 面向 PC 后台明细下钻（返回大列表），
+/screen 只返回图表直接可用的扁平聚合数据，字段少、无分页、供高频轮询。
+"""
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.database import get_db
+from app.services.screen_service import (
+    get_monthly_metrics, MonthlyMetrics,
+    get_wip_distribution, WipDistributionResponse,
+    get_active_users, ActiveUsersResponse,
+)
+
+router = APIRouter(prefix="/screen", tags=["大屏统计"])
+
+
+@router.get("/monthly-metrics", response_model=MonthlyMetrics)
+async def monthly_metrics(db: AsyncSession = Depends(get_db)):
+    """
+    当月吞吐 — 大屏顶部四张数字卡。
+
+    返回：本月生产流转 / 本月已入库 / 本月已出库 / 本月返厂回流。
+    统计区间为北京时间当月 1 日 00:00 至此刻。
+    """
+    return await get_monthly_metrics(db)
+
+
+@router.get("/wip-distribution", response_model=WipDistributionResponse)
+async def wip_distribution(db: AsyncSession = Depends(get_db)):
+    """
+    工序积压分布 — 当前未完结设备按 overall_status 聚合的**纯数量**。
+
+    返回固定阶段列表（含 0 值），保证柱状图类目稳定、不因缺数据而塌陷。
+    """
+    return await get_wip_distribution(db)
+
+
+@router.get("/active-users", response_model=ActiveUsersResponse)
+async def active_users(
+    top_n: int = Query(5, ge=1, le=20, description="返回的活跃人员数量"),
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    本月系统使用活跃度排行 — 接收 / 转交 / 上传备注次数。
+
+    桥接 /dashboard/user-operations 的统计口径，仅返回本月确实有操作的人员。
+    """
+    return await get_active_users(db, top_n=top_n)
diff --git a/backend/app/api/v1/router.py b/backend/app/api/v1/router.py
index e40ff7b..da9efc9 100644
--- a/backend/app/api/v1/router.py
+++ b/backend/app/api/v1/router.py
@@ -16,6 +16,7 @@ from app.api.v1.endpoints.analytics import router as analytics_router
 from app.api.v1.endpoints.holidays import router as holidays_router
 from app.api.v1.endpoints.webhooks import router as webhooks_router
 from app.api.v1.endpoints.external_products import router as external_products_router
+from app.api.v1.endpoints.screen import router as screen_router
 
 api_router = APIRouter()
 
@@ -35,3 +36,4 @@ api_router.include_router(analytics_router)
 api_router.include_router(holidays_router)
 api_router.include_router(webhooks_router)
 api_router.include_router(external_products_router)
+api_router.include_router(screen_router)
diff --git a/backend/app/services/screen_service.py b/backend/app/services/screen_service.py
new file mode 100644
index 0000000..9dd8e98
--- /dev/null
+++ b/backend/app/services/screen_service.py
@@ -0,0 +1,254 @@
+"""大屏统计服务 — 面向管理层**日常运营与督导**的轻量只读聚合
+
+设计约定：
+  - 只读，无写操作，字段扁平，便于大屏高频轮询。
+  - 时间一律按**北京时间**判定；DB 列为 timestamptz（实存 UTC），
+    比较前统一把边界换算成 UTC，避免月初/凌晨的边界漂移。
+  - 口径与 dashboard_service.get_dashboard_stats 保持一致：
+    未完结 = overall_status 不属于 {待仓库收货, 已入库, 在库, 已出库}。
+
+视角说明：
+  管理层每天要看的是「这个月干得怎么样、现在卡在哪、系统有没有在跑」，
+  而不是历史品质排名。故本模块聚焦三件事 —— 当月吞吐、当前卡点、使用活跃度。
+"""
+from __future__ import annotations
+
+from datetime import datetime, timezone
+
+from pydantic import BaseModel
+from sqlalchemy import func, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.core.lifecycle import (
+    AFTER_SALES_ONLY_STEPS,
+    LIFECYCLE_AFTER_SALES,
+    LIFECYCLE_PRODUCTION,
+)
+from app.core.time_utils import get_beijing_time
+from app.models.product import Product
+from app.models.task import Task
+from app.models.task_log import TaskLog
+
+# 已完结的宏观状态 —— 与 dashboard_service.get_dashboard_stats 同口径
+FINISHED_OVERALL = ("待仓库收货", "已入库", "在库", "已出库")
+
+# 仓储动作日志类型（由 webhooks / product_finalize_service 写入）
+LOG_WAREHOUSE_INBOUND = "warehouse_inbound"
+LOG_WAREHOUSE_OUTBOUND = "warehouse_outbound"
+
+
+def _not_finished():
+    """未完结条件 —— overall_status 为 NULL 或不在已完结集合内。
+
+    注意 PostgreSQL 中 `NULL NOT IN (...)` 结果为 NULL 而非 TRUE，
+    必须显式带上 IS NULL 分支，否则建单后未流转的设备会被整批漏掉。
+    """
+    return or_(
+        Product.overall_status.is_(None),
+        ~Product.overall_status.in_(FINISHED_OVERALL),
+    )
+
+
+def _month_bounds() -> tuple[datetime, datetime, str]:
+    """返回 (本月起点 UTC, 当前时刻 UTC, 'YYYY-MM')。
+
+    本月起点 = 北京时间当月 1 日 00:00 —— 直接换算成 UTC 参与 timestamptz 比较，
+    不依赖数据库会话时区设置。
+    """
+    now_bj = get_beijing_time()
+    month_start_bj = now_bj.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
+    return (
+        month_start_bj.astimezone(timezone.utc),
+        now_bj.astimezone(timezone.utc),
+        month_start_bj.strftime("%Y-%m"),
+    )
+
+
+# ============================================================
+# 1. 当月吞吐指标
+# ============================================================
+
+class MonthlyMetrics(BaseModel):
+    """大屏顶部四张数字卡（当月视角）"""
+    month: str              # "2026-09"
+    month_start: str        # "2026-09-01"（北京时间）
+    month_production: int   # 本月有流转记录或新建的生产态设备数
+    month_inbound: int      # 本月扫码入库数
+    month_outbound: int     # 本月扫码出库数
+    month_returned: int     # 本月进入售后/回流状态的设备数
+
+
+async def get_monthly_metrics(db: AsyncSession) -> MonthlyMetrics:
+    """当月吞吐四联指标。
+
+    口径：
+      - month_production：lifecycle_phase = PRODUCTION，且「本月新建」或
+        「本月产生过任意 TaskLog 流转记录」的设备数（按设备去重）。
+        反映这个月实际被推着走的机器有多少。
+      - month_inbound / month_outbound：task_logs 中 action_type =
+        warehouse_inbound / warehouse_outbound 的记录数（MOM 扫码回调写入）。
+      - month_returned：本月创建过售后专属工序任务（发货测试 / 售后维修）的
+        设备数（去重）。Product 表无 updated_at，无法直接查「转为 AFTER_SALES
+        的时刻」，故以售后工序任务的创建时间作为进入售后阶段的时间锚点。
+    """
+    month_start_utc, now_utc, month_label = _month_bounds()
+
+    # 本月该设备产生过任意流转日志
+    has_activity = (
+        select(TaskLog.id)
+        .join(Task, Task.id == TaskLog.task_id)
+        .where(
+            Task.product_id == Product.id,
+            TaskLog.created_at >= month_start_utc,
+        )
+        .exists()
+    )
+    month_production = await db.scalar(
+        select(func.count(func.distinct(Product.id))).where(
+            Product.lifecycle_phase == LIFECYCLE_PRODUCTION,
+            or_(Product.created_at >= month_start_utc, has_activity),
+        )
+    ) or 0
+
+    async def _count_log(action_type: str) -> int:
+        return await db.scalar(
+            select(func.count(TaskLog.id)).where(
+                TaskLog.action_type == action_type,
+                TaskLog.created_at >= month_start_utc,
+            )
+        ) or 0
+
+    month_inbound = await _count_log(LOG_WAREHOUSE_INBOUND)
+    month_outbound = await _count_log(LOG_WAREHOUSE_OUTBOUND)
+
+    month_returned = await db.scalar(
+        select(func.count(func.distinct(Task.product_id)))
+        .join(Product, Task.product_id == Product.id)
+        .where(
+            Product.lifecycle_phase == LIFECYCLE_AFTER_SALES,
+            Task.task_name.in_(tuple(AFTER_SALES_ONLY_STEPS)),
+            Task.created_at >= month_start_utc,
+        )
+    ) or 0
+
+    return MonthlyMetrics(
+        month=month_label,
+        month_start=f"{month_label}-01",
+        month_production=int(month_production),
+        month_inbound=int(month_inbound),
+        month_outbound=int(month_outbound),
+        month_returned=int(month_returned),
+    )
+
+
+# ============================================================
+# 2. 工序积压分布（柱状图）
+# ============================================================
+
+class WipStage(BaseModel):
+    stage: str          # 工序名（中文，直接作为图表类目）
+    phase: str          # PRODUCTION / AFTER_SALES，供前端分区着色
+    count: int
+
+
+class WipDistributionResponse(BaseModel):
+    total: int          # 未完结设备总数
+    items: list[WipStage]
+
+
+# 阶段与流转顺序 —— 顺序即「工序先后」，前端据此排布柱子
+WIP_STAGES: tuple[tuple[str, str], ...] = (
+    ("待启动", LIFECYCLE_PRODUCTION),      # overall_status 为空：建单后尚未流转
+    ("备货", LIFECYCLE_PRODUCTION),
+    ("生产", LIFECYCLE_PRODUCTION),
+    ("测试", LIFECYCLE_PRODUCTION),
+    ("维修", LIFECYCLE_PRODUCTION),
+    ("发货测试", LIFECYCLE_AFTER_SALES),
+    ("售后维修", LIFECYCLE_AFTER_SALES),
+)
+
+# 「待启动」对应的真实分组键（overall_status IS NULL / 空串）
+_UNSTARTED_KEY = ""
+
+
+async def get_wip_distribution(db: AsyncSession) -> WipDistributionResponse:
+    """工序积压分布 —— 当前未完结设备按 overall_status 聚合的数量。
+
+    返回**固定阶段列表**（含 0 值），保证大屏布局稳定、柱子不因某天缺数据而
+    整根消失；同时把数据里出现但不在词表内的状态追加在末尾，确保 items 的
+    count 之和恒等于 total（避免统计悄悄漏数）。
+    """
+    rows = await db.execute(
+        select(Product.overall_status, func.count(Product.id))
+        .where(_not_finished())
+        .group_by(Product.overall_status)
+    )
+    counts: dict[str, int] = {}
+    for raw_status, cnt in rows.all():
+        key = (raw_status or "").strip()
+        counts[key] = counts.get(key, 0) + cnt
+
+    total = sum(counts.values())
+
+    items: list[WipStage] = []
+    for stage, phase in WIP_STAGES:
+        key = _UNSTARTED_KEY if stage == "待启动" else stage
+        items.append(WipStage(stage=stage, phase=phase, count=counts.get(key, 0)))
+
+    known_keys = {_UNSTARTED_KEY if s == "待启动" else s for s, _ in WIP_STAGES}
+    for key, cnt in counts.items():
+        if key not in known_keys and cnt:
+            items.append(WipStage(
+                stage=key or "待启动",
+                phase=LIFECYCLE_PRODUCTION,
+                count=cnt,
+            ))
+
+    return WipDistributionResponse(total=total, items=items)
+
+
+# ============================================================
+# 3. 系统使用活跃度（本月人员排行）
+# ============================================================
+
+class ActiveUser(BaseModel):
+    user_id: str
+    user_name: str
+    receive_count: int      # 接收
+    transfer_count: int     # 转交
+    record_count: int       # 上传备注
+    total: int
+
+
+class ActiveUsersResponse(BaseModel):
+    month: str
+    items: list[ActiveUser]
+
+
+async def get_active_users(db: AsyncSession, top_n: int = 5) -> ActiveUsersResponse:
+    """本月系统活跃度排行 —— 直接桥接 /dashboard/user-operations 的口径。
+
+    不重复实现聚合逻辑：转交/接收取 task_logs（action_type = receive / complete），
+    上传备注取 task_records（排除系统自动备注）。仅返回本月**确实有操作**的人员，
+    避免排行榜被一串 0 稀释 —— 领导要看到的是"系统真的有人在用"。
+    """
+    from app.services.dashboard_service import get_user_operations
+
+    month_start_utc, _now, month_label = _month_bounds()
+    operations = await get_user_operations(db, since=month_start_utc, until=None)
+    active = [op for op in operations if op.total > 0][:top_n]
+
+    return ActiveUsersResponse(
+        month=month_label,
+        items=[
+            ActiveUser(
+                user_id=op.user_id,
+                user_name=op.user_name,
+                receive_count=op.receive_count,
+                transfer_count=op.transfer_count,
+                record_count=op.record_count,
+                total=op.total,
+            )
+            for op in active
+        ],
+    )
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 7076c49..42ee41c 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -25,6 +25,7 @@ const AdminPeoplePage = lazy(() => import("./pages/admin/AdminPeoplePage"));
 const AdminPrintConfigPage = lazy(() => import("./pages/admin/AdminPrintConfigPage"));
 const AnalyticsDashboard = lazy(() => import("./pages/admin/AnalyticsDashboard"));
 const MatrixBoard = lazy(() => import("./pages/MatrixBoard"));
+const ScreenDashboard = lazy(() => import("./pages/admin/ScreenDashboard"));
 
 export default function App() {
   return (
@@ -47,6 +48,9 @@ export default function App() {
                 {/* PC 管理端 — 登录页（独立，无侧边栏） */}
                 <Route path="/admin/login" element={<AdminLoginPage />} />
 
+                {/* PC 管理端 — 管理层数据大屏（独立全屏，无侧边栏，组件内自带鉴权守卫） */}
+                <Route path="/admin/screen" element={<ScreenDashboard />} />
+
                 {/* PC 管理端 — 需要登录 */}
                 <Route path="/admin" element={<Navigate to="/admin/dashboard" replace />} />
                 <Route element={<AdminLayout />}>
diff --git a/frontend/src/components/BaseEChart.tsx b/frontend/src/components/BaseEChart.tsx
index a3dbc9e..d66b705 100644
--- a/frontend/src/components/BaseEChart.tsx
+++ b/frontend/src/components/BaseEChart.tsx
@@ -2,9 +2,9 @@
  *  支持 onEvents（常规事件）与 onZrClick（ZRender 底层点击，扩大热区）。 */
 import { useEffect, useRef } from "react";
 import * as echarts from "echarts/core";
-import { LineChart, BarChart, CustomChart } from "echarts/charts";
+import { LineChart, BarChart, CustomChart, GaugeChart } from "echarts/charts";
 import {
-  GridComponent, TooltipComponent, LegendComponent, DataZoomComponent,
+  GridComponent, TooltipComponent, LegendComponent, DataZoomComponent, GraphicComponent,
 } from "echarts/components";
 import { CanvasRenderer } from "echarts/renderers";
 import type { EChartsCoreOption } from "echarts/core";
@@ -14,10 +14,12 @@ echarts.use([
   LineChart,
   BarChart,
   CustomChart,
+  GaugeChart,   // 仪表盘（预留，当前大屏未使用）
   GridComponent,
   TooltipComponent,
   LegendComponent,
   DataZoomComponent,
+  GraphicComponent,   // 大屏饼图中心文字（graphic 需显式注册，否则静默不渲染）
   CanvasRenderer,
 ]);
 
diff --git a/frontend/src/components/admin/UserOperationDetailDrawer.tsx b/frontend/src/components/admin/UserOperationDetailDrawer.tsx
new file mode 100644
index 0000000..fba22c2
--- /dev/null
+++ b/frontend/src/components/admin/UserOperationDetailDrawer.tsx
@@ -0,0 +1,114 @@
+/** 人员操作明细抽屉 — 数据源 /dashboard/user-operations/detail
+ *
+ *  AdminDashboard（全局概览 · 人员操作统计）与 ScreenDashboard（大屏 · 系统活跃度）
+ *  共用同一实现，保证两处的下钻交互与呈现完全一致。
+ *
+ *  用法：ref.open({ userId, userName, actionType, label, since, until })
+ */
+import { forwardRef, useImperativeHandle, useState } from "react";
+import { Drawer } from "antd";
+import dayjs from "dayjs";
+import { Loader2 } from "lucide-react";
+
+import { fetchOperationDetail, type OperationDetail } from "../../services/dashboardApi";
+
+export interface OperationDetailRequest {
+  userId: string;
+  userName: string;
+  /** 操作类型: receive / transfer / record */
+  actionType: string;
+  /** 类型中文名（接收 / 转交 / 上传备注），用于标题 */
+  label: string;
+  /** 时间范围 ISO；缺省则不加时间过滤 */
+  since?: string;
+  until?: string;
+}
+
+export interface UserOperationDetailDrawerHandle {
+  open: (req: OperationDetailRequest) => void;
+}
+
+const UserOperationDetailDrawer = forwardRef<
+  UserOperationDetailDrawerHandle,
+  { theme?: "light" | "dark" }
+>(function UserOperationDetailDrawer({ theme = "light" }, ref) {
+  const [open, setOpen] = useState(false);
+  const [list, setList] = useState<OperationDetail[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [title, setTitle] = useState("");
+  const dark = theme === "dark";
+
+  useImperativeHandle(ref, () => ({
+    open: (req) => {
+      setOpen(true);
+      setTitle(`${req.userName} · ${req.label}`);
+      setLoading(true);
+      fetchOperationDetail(req.userId, req.actionType, req.since, req.until)
+        .then(setList)
+        .catch(() => setList([]))
+        .finally(() => setLoading(false));
+    },
+  }));
+
+  return (
+    <Drawer
+      title={
+        <span className={`text-base font-bold ${dark ? "text-slate-100" : ""}`}>
+          📋 {title}
+          <span className={`ml-1 font-normal ${dark ? "text-slate-500" : "text-gray-400"}`}>
+            {list.length} 条
+          </span>
+        </span>
+      }
+      open={open}
+      onClose={() => setOpen(false)}
+      size="large"
+      styles={{
+        header: dark ? { background: "#0f172a", borderBottom: "1px solid #1e293b" } : undefined,
+        content: dark ? { background: "#0b1220" } : undefined,
+        body: { padding: 16, background: dark ? "#0b1220" : "#f8fafc" },
+      }}
+    >
+      {loading ? (
+        <div className="flex items-center justify-center py-20">
+          <Loader2 className={`h-6 w-6 animate-spin ${dark ? "text-cyan-500" : "text-blue-500"}`} />
+        </div>
+      ) : list.length === 0 ? (
+        <div className={`py-16 text-center text-sm ${dark ? "text-slate-600" : "text-gray-400"}`}>
+          该时段暂无相关记录
+        </div>
+      ) : (
+        <div>
+          {list.map((d, i) => (
+            <div
+              key={i}
+              className={`mb-2 rounded-lg border px-4 py-3 shadow-sm ${
+                dark ? "border-slate-800 bg-slate-900/50" : "border-gray-100 bg-white"
+              }`}
+            >
+              <div className="flex items-center justify-between">
+                <span className={`text-sm font-semibold ${dark ? "text-slate-100" : "text-gray-800"}`}>
+                  {d.task_name}
+                </span>
+                <span className={`shrink-0 text-xs ${dark ? "text-slate-500" : "text-gray-400"}`}>
+                  {d.time ? dayjs(d.time).format("YYYY-MM-DD HH:mm") : ""}
+                </span>
+              </div>
+              {d.remark && (
+                <p className={`mt-1 text-xs leading-relaxed ${dark ? "text-slate-300" : "text-gray-600"}`}>
+                  {d.remark}
+                </p>
+              )}
+              <div className={`mt-1.5 text-[11px] ${dark ? "text-slate-500" : "text-gray-400"}`}>
+                <span>{d.material_name || "未知设备"}</span>
+                {d.product_sn && <span className="ml-2 font-mono">身份证: {d.product_sn}</span>}
+              </div>
+            </div>
+          ))}
+        </div>
+      )}
+    </Drawer>
+  );
+});
+
+export default UserOperationDetailDrawer;
diff --git a/frontend/src/components/layout/AdminLayout.tsx b/frontend/src/components/layout/AdminLayout.tsx
index 00416dd..a8595e5 100644
--- a/frontend/src/components/layout/AdminLayout.tsx
+++ b/frontend/src/components/layout/AdminLayout.tsx
@@ -1,5 +1,5 @@
 import { NavLink, Outlet, useLocation, useNavigate, Navigate } from "react-router-dom";
-import { QrCode, Package, ArrowLeft, LayoutDashboard, Smartphone, GitBranch, LogOut, User, Users, BarChart3, Table2 } from "lucide-react";
+import { QrCode, Package, ArrowLeft, LayoutDashboard, Smartphone, GitBranch, LogOut, User, Users, BarChart3, Table2, Tv } from "lucide-react";
 import { useAuth } from "../../contexts/AuthContext";
 
 const MENU = [
@@ -39,6 +39,12 @@ const MENU = [
     icon: Table2,
     description: "规格型号 × 人员/工序 在制品透视表",
   },
+  {
+    title: "管理层大屏",
+    path: "/admin/screen",
+    icon: Tv,
+    description: "全屏数据大盘 · 直通率 / 产量趋势 / 不良分布",
+  },
 ];
 
 export default function AdminLayout() {
diff --git a/frontend/src/pages/MatrixBoard.tsx b/frontend/src/pages/MatrixBoard.tsx
index 0ec8454..b5e9b44 100644
--- a/frontend/src/pages/MatrixBoard.tsx
+++ b/frontend/src/pages/MatrixBoard.tsx
@@ -12,8 +12,18 @@ import { lifecycleBadge } from "../constants/task";
 
 const { RangePicker } = DatePicker;
 
-// 🔧 固定标准主轴：核心工序 + 状态列始终显示（即使计数为 0），表头不随操作内容增减
-const FIXED_STEP_COLUMNS = ["待接收", "备货", "生产", "测试", "维修", "已完成", "已入库", "已出库"];
+// 🔧 三区段列定义：生产区 / 售后区 / 完结区
+//    售后区必须独立成列 —— 出库回流设备的「发货测试 / 售后维修」若与生产区的
+//    「测试 / 维修」共用一列，两类设备会被加在一起，统计完全失真。
+//    accent 用于给分组表头着色，售后区用紫色呼应标签配色（红=驳回语义，不占用）。
+const COLUMN_GROUPS: { title: string; keys: string[]; accent: string }[] = [
+  { title: "生产区", keys: ["待接收", "备货", "生产", "测试", "维修"], accent: "text-blue-700" },
+  { title: "售后区", keys: ["发货测试", "售后维修"], accent: "text-purple-700" },
+  { title: "完结区", keys: ["已完成", "已入库", "已出库"], accent: "text-gray-700" },
+];
+
+// 固定标准主轴：三区段的全部列始终显示（即使计数为 0），表头不随操作内容增减
+const FIXED_STEP_COLUMNS = COLUMN_GROUPS.flatMap((g) => g.keys);
 
 // ⏰ 时间筛选（与全局概览一致）
 type DateRangeKey = "today" | "7d" | "30d" | "custom";
@@ -112,7 +122,18 @@ export default function MatrixBoard() {
   // 🔧 全局唯一表头 + 单表数据：固定标准主轴在前，动态工序（数据中出现的新工序）追加在后
   const { columns, dataSource, keys } = useMemo(() => {
     const dynamicKeys = Array.from(new Set(data.map((d) => d.dimension_key)));
-    const keys = Array.from(new Set([...FIXED_STEP_COLUMNS, ...dynamicKeys]));
+    const fixedKeys = new Set(FIXED_STEP_COLUMNS);
+    const extraKeys = dynamicKeys.filter((k) => !fixedKeys.has(k));
+
+    // 🔧 三区段分组：自定义工序（喷漆 / 老化…）挂到生产区末尾 —— 它们是产线自建工序，
+    //    与售后区那两个受控工序名不同，无法从名字反推归属，故按生产口径展示。
+    //    注：售后设备的历史工序名已在后端归一（测试→发货测试 / 维修→售后维修），
+    //    所以这里拿到的 dimension_key 已经是正确的区段归属。
+    const groups = COLUMN_GROUPS.map((g, i) => ({
+      ...g,
+      keys: i === 0 ? [...g.keys, ...extraKeys] : g.keys,
+    }));
+    const keys = groups.flatMap((g) => g.keys);
 
     const rowsMap = new Map<string, any>();
     for (const item of data) {
@@ -141,28 +162,32 @@ export default function MatrixBoard() {
           </div>
         ),
       },
-      ...keys.map((key) => ({
-        title: key,
-        dataIndex: key,
-        align: "center" as const,
-        width: 96,
-        render: (val: number, record: any) => {
-          const v = val || 0;
-          const assignees = record._assignees?.[key] || [];
-          return (
-            <div
-              className={`py-1 ${v > 0 ? "cursor-pointer hover:bg-blue-50" : ""}`}
-              onClick={() => v > 0 && openDrill(record.spec_model, key, record.product_name)}
-            >
-              <div className={`text-sm font-bold leading-none ${v > 0 ? "text-blue-600" : "text-gray-800"}`}>{v}</div>
-              {assignees.length > 0 && (
-                <div className="mx-auto max-w-[92px] text-xs leading-tight text-gray-500">
-                  {summarizeAssignees(assignees)}
-                </div>
-              )}
-            </div>
-          );
-        },
+      // 🔧 两行表头：第一行区段名（生产区 / 售后区 / 完结区），第二行具体工序
+      ...groups.map((g) => ({
+        title: <span className={`text-xs font-bold ${g.accent}`}>{g.title}</span>,
+        children: g.keys.map((key) => ({
+          title: key,
+          dataIndex: key,
+          align: "center" as const,
+          width: 96,
+          render: (val: number, record: any) => {
+            const v = val || 0;
+            const assignees = record._assignees?.[key] || [];
+            return (
+              <div
+                className={`py-1 ${v > 0 ? "cursor-pointer hover:bg-blue-50" : ""}`}
+                onClick={() => v > 0 && openDrill(record.spec_model, key, record.product_name)}
+              >
+                <div className={`text-sm font-bold leading-none ${v > 0 ? "text-blue-600" : "text-gray-800"}`}>{v}</div>
+                {assignees.length > 0 && (
+                  <div className="mx-auto max-w-[92px] text-xs leading-tight text-gray-500">
+                    {summarizeAssignees(assignees)}
+                  </div>
+                )}
+              </div>
+            );
+          },
+        })),
       })),
       {
         title: "合计",
@@ -182,11 +207,15 @@ export default function MatrixBoard() {
       <div className="mb-4 flex flex-wrap items-center justify-between gap-3">
         <div>
           <h2 className="text-xl font-bold text-gray-800">📊 WIP 分布矩阵</h2>
-          <p className="mt-1 text-sm text-gray-500">生产分布透视表：规格型号 × 工序 · 含已完成/已入库</p>
+          <p className="mt-1 text-sm text-gray-500">生产分布透视表：规格型号 × 工序 · 含售后回流与已完结</p>
           {/* 🔴 术语解释：区分"已完成"（车间完工待实收）与"已入库"（仓库已扫码实收） */}
           <p className="mt-1 text-xs text-red-500">
             ⓘ "已完成" = 车间完工已转交仓库，等待仓库扫码实收；"已入库" = 仓库已扫码确认实收。
           </p>
+          {/* 🟣 三区段说明：强调售后区独立计数，不与生产区同名工序混算 */}
+          <p className="mt-1 text-xs text-purple-600">
+            ⓘ 表头分三区：<b>生产区</b>（产线工序）｜<b>售后区</b>（出库回流设备的「发货测试 / 售后维修」，独立计数，不并入生产区的测试 / 维修）｜<b>完结区</b>。
+          </p>
         </div>
         {/* ⏰ 时间筛选 */}
         <div className="flex flex-wrap items-center gap-2">
diff --git a/frontend/src/pages/admin/AdminDashboard.tsx b/frontend/src/pages/admin/AdminDashboard.tsx
index a839a46..6ac7eb5 100644
--- a/frontend/src/pages/admin/AdminDashboard.tsx
+++ b/frontend/src/pages/admin/AdminDashboard.tsx
@@ -1,4 +1,4 @@
-import { useEffect, useState, useCallback } from "react";
+import { useEffect, useState, useCallback, useRef } from "react";
 import {
   Package, ClipboardList, Bell, TrendingUp, AlertTriangle,
   RefreshCw, Loader2, AlertCircle, ArrowRight, ArrowUp, ArrowDown, ArrowUpDown,
@@ -7,9 +7,12 @@ import {
 import { Radio, DatePicker, Drawer, Input } from "antd";
 import dayjs, { type Dayjs } from "dayjs";
 import {
-  fetchDashboardStats, fetchWipTasks, fetchDashboardMessages, fetchCompletedTasks, fetchRejectedTasks, fetchUserOperations, fetchOperationDetail,
-  type DashboardStats, type WipTask, type ProductMessageItem, type CompletedTask, type RejectedTask, type UserOperation, type OperationDetail,
+  fetchDashboardStats, fetchWipTasks, fetchDashboardMessages, fetchCompletedTasks, fetchRejectedTasks, fetchUserOperations,
+  type DashboardStats, type WipTask, type ProductMessageItem, type CompletedTask, type RejectedTask, type UserOperation,
 } from "../../services/dashboardApi";
+import UserOperationDetailDrawer, {
+  type UserOperationDetailDrawerHandle,
+} from "../../components/admin/UserOperationDetailDrawer";
 
 const { RangePicker } = DatePicker;
 
@@ -276,11 +279,8 @@ export default function AdminDashboard() {
   // 抽屉内独立时间筛选（不依赖顶部）
   const [opDateKey, setOpDateKey] = useState<DateRangeKey>("today");
   const [opCustomRange, setOpCustomRange] = useState<[Dayjs, Dayjs] | null>(null);
-  // 操作明细下钻
-  const [opDetailOpen, setOpDetailOpen] = useState(false);
-  const [opDetailList, setOpDetailList] = useState<OperationDetail[]>([]);
-  const [opDetailLoading, setOpDetailLoading] = useState(false);
-  const [opDetailTitle, setOpDetailTitle] = useState("");
+  // 操作明细下钻 — 交给共用抽屉组件（与大屏 ScreenDashboard 同一实现）
+  const opDetailRef = useRef<UserOperationDetailDrawerHandle>(null);
 
   // ── 加载主数据 ──
   const loadData = useCallback((key: DateRangeKey, range: [Dayjs, Dayjs] | null) => {
@@ -395,14 +395,15 @@ export default function AdminDashboard() {
 
   // 点击数字下钻查看明细（跟随抽屉内时间）
   const openOpDetail = (user: UserOperation, actionType: string, label: string) => {
-    setOpDetailOpen(true);
-    setOpDetailTitle(`${user.user_name} · ${label}`);
-    setOpDetailLoading(true);
     const { since, until } = rangeToParams(opDateKey, opCustomRange);
-    fetchOperationDetail(user.user_id, actionType, since, until)
-      .then(setOpDetailList)
-      .catch(() => setOpDetailList([]))
-      .finally(() => setOpDetailLoading(false));
+    opDetailRef.current?.open({
+      userId: user.user_id,
+      userName: user.user_name,
+      actionType,
+      label,
+      since,
+      until,
+    });
   };
 
   const onMsgSearch = (value: string) => {
@@ -859,38 +860,8 @@ export default function AdminDashboard() {
         )}
       </Drawer>
 
-      {/* ═══ 操作明细抽屉 ═══ */}
-      <Drawer
-        title={<span className="text-base font-bold">📋 {opDetailTitle} <span className="font-normal text-gray-400">{opDetailList.length} 条</span></span>}
-        open={opDetailOpen}
-        onClose={() => setOpDetailOpen(false)}
-        size="large"
-        styles={{ body: { padding: 16, background: "#f8fafc" } }}
-      >
-        {opDetailLoading ? (
-          <div className="flex items-center justify-center py-20">
-            <Loader2 className="h-6 w-6 animate-spin text-blue-500" />
-          </div>
-        ) : opDetailList.length === 0 ? (
-          <div className="py-16 text-center text-sm text-gray-400">该时段暂无相关记录</div>
-        ) : (
-          <div>
-            {opDetailList.map((d, i) => (
-              <div key={i} className="mb-2 rounded-lg border border-gray-100 bg-white px-4 py-3 shadow-sm">
-                <div className="flex items-center justify-between">
-                  <span className="text-sm font-semibold text-gray-800">{d.task_name}</span>
-                  <span className="shrink-0 text-xs text-gray-400">{d.time ? dayjs(d.time).format("YYYY-MM-DD HH:mm") : ""}</span>
-                </div>
-                {d.remark && <p className="mt-1 text-xs leading-relaxed text-gray-600">{d.remark}</p>}
-                <div className="mt-1.5 text-[11px] text-gray-400">
-                  <span>{d.material_name || "未知设备"}</span>
-                  {d.product_sn && <span className="ml-2 font-mono">身份证: {d.product_sn}</span>}
-                </div>
-              </div>
-            ))}
-          </div>
-        )}
-      </Drawer>
+      {/* ═══ 操作明细抽屉 — 公共组件，与大屏 ScreenDashboard 共用同一实现 ═══ */}
+      <UserOperationDetailDrawer ref={opDetailRef} />
     </div>
   );
 }
diff --git a/frontend/src/pages/admin/ScreenDashboard.tsx b/frontend/src/pages/admin/ScreenDashboard.tsx
new file mode 100644
index 0000000..aa01909
--- /dev/null
+++ b/frontend/src/pages/admin/ScreenDashboard.tsx
@@ -0,0 +1,482 @@
+/** 管理层数据大屏 — 全屏无侧边栏 · 亮色主题（与系统其他页面统一）· 60s 自动轮询
+ *
+ *  视角：日常运营与督导 —— 当月吞吐 / 当前卡点 / 系统活跃度。
+ *
+ *  布局：
+ *    顶部一排  4 张当月指标卡（生产流转 / 已入库 / 已出库 / 返厂回流）
+ *    左·主图区 【车间工序积压分布】横向柱状图，按生产段/售后段着色
+ *    右·侧边区 【系统活跃度排行】本月 接收 / 转交 / 备注 次数表（主体，撑满高度）
+ *
+ *  跳转：下钻一律用 window.open 开新标签页 —— 领导看板时不丢失大盘视图。
+ *  过滤：URL 参数直接映射到 AdminTasksPage 的原生筛选状态
+ *        （?status= 点亮状态 Tabs、?stage= 点亮「当前工序」列筛选），
+ *        不引入任何大屏专用的额外 UI。
+ */
+import { useCallback, useEffect, useMemo, useRef, useState } from "react";
+import type { ReactNode } from "react";
+import { Navigate, useNavigate } from "react-router-dom";
+import { Maximize2, Minimize2, RefreshCw, ArrowLeft } from "lucide-react";
+import type { EChartsCoreOption } from "echarts/core";
+
+import BaseEChart from "../../components/BaseEChart";
+import { useAuth } from "../../contexts/AuthContext";
+import {
+  fetchMonthlyMetrics,
+  fetchWipDistribution,
+  fetchActiveUsers,
+  type MonthlyMetrics,
+  type WipDistributionResponse,
+  type ActiveUser,
+  type ActiveUsersResponse,
+} from "../../services/screenApi";
+import UserOperationDetailDrawer, {
+  type UserOperationDetailDrawerHandle,
+} from "../../components/admin/UserOperationDetailDrawer";
+
+// 大屏轮询间隔
+const REFRESH_MS = 60_000;
+
+// 亮色主题下的 ECharts 配色
+const AXIS_COLOR = "#6b7280";       // 坐标轴文字 gray-500
+const GRID_COLOR = "#e5e7eb";       // 网格线 gray-200
+const TEXT_COLOR = "#374151";       // 标签文字 gray-700
+const TOOLTIP_STYLE = {
+  backgroundColor: "rgba(255,255,255,0.97)",
+  borderColor: "#d1d5db",
+  textStyle: { color: "#1f2937" },
+  extraCssText: "box-shadow:0 4px 12px rgba(0,0,0,0.08);",
+};
+
+// 生产段 / 售后段的柱子配色
+const COLOR_PRODUCTION = "#0891b2";   // cyan-600
+const COLOR_AFTER_SALES = "#ea580c";  // orange-600
+
+// 操作类型 → 中文名（明细抽屉标题用）
+const OP_LABELS: Record<string, string> = {
+  receive: "接收",
+  transfer: "转交",
+  record: "上传备注",
+};
+
+// ============================================================
+// 鉴权外壳 — 与 AdminLayout 同款守卫，但不渲染侧边栏
+// ============================================================
+
+export default function ScreenDashboard() {
+  const { isAuthenticated, loading } = useAuth();
+
+  if (loading) {
+    return (
+      <div className="flex h-screen w-screen items-center justify-center bg-gray-50">
+        <div className="h-10 w-10 animate-spin rounded-full border-2 border-blue-500 border-t-transparent" />
+      </div>
+    );
+  }
+  if (!isAuthenticated) return <Navigate to="/admin/login" replace />;
+
+  return <ScreenBoard />;
+}
+
+// ============================================================
+// 大屏主体
+// ============================================================
+
+function ScreenBoard() {
+  const navigate = useNavigate();
+
+  const [metrics, setMetrics] = useState<MonthlyMetrics | null>(null);
+  const [dist, setDist] = useState<WipDistributionResponse | null>(null);
+  const [users, setUsers] = useState<ActiveUsersResponse | null>(null);
+
+  // 操作明细下钻 — 与「全局概览」AdminDashboard 的人员操作统计共用同一抽屉组件
+  const opDetailRef = useRef<UserOperationDetailDrawerHandle>(null);
+
+  const [updatedAt, setUpdatedAt] = useState("");
+  const [error, setError] = useState("");
+  const [refreshing, setRefreshing] = useState(false);
+  const [isFullscreen, setIsFullscreen] = useState(false);
+
+  // 卸载后不再 setState；reqId 丢弃过期响应（防止慢请求覆盖新数据）
+  const aliveRef = useRef(true);
+  const reqIdRef = useRef(0);
+
+  const load = useCallback(async () => {
+    const reqId = ++reqIdRef.current;
+    setRefreshing(true);
+    try {
+      const [m, d, u] = await Promise.all([
+        fetchMonthlyMetrics(),
+        fetchWipDistribution(),
+        fetchActiveUsers(10),   // 多取一些，过滤掉 0 操作的人后再展示
+      ]);
+      if (!aliveRef.current || reqId !== reqIdRef.current) return;
+      setMetrics(m);
+      setDist(d);
+      setUsers(u);
+      setError("");
+      setUpdatedAt(new Date().toLocaleTimeString("zh-CN", { hour12: false }));
+    } catch {
+      if (!aliveRef.current || reqId !== reqIdRef.current) return;
+      setError("数据加载失败，将自动重试");
+    } finally {
+      if (aliveRef.current && reqId === reqIdRef.current) setRefreshing(false);
+    }
+  }, []);
+
+  // 首屏加载 + 60s 轮询
+  useEffect(() => {
+    aliveRef.current = true;
+    load();
+    const timer = setInterval(load, REFRESH_MS);
+    return () => {
+      aliveRef.current = false;
+      clearInterval(timer);
+    };
+  }, [load]);
+
+  // 全屏状态同步（用户按 Esc 退出时图标要跟着变）
+  useEffect(() => {
+    const onChange = () => setIsFullscreen(!!document.fullscreenElement);
+    document.addEventListener("fullscreenchange", onChange);
+    return () => document.removeEventListener("fullscreenchange", onChange);
+  }, []);
+
+  function toggleFullscreen() {
+    if (document.fullscreenElement) void document.exitFullscreen();
+    else void document.documentElement.requestFullscreen();
+  }
+
+  /** 下钻一律开新标签页 —— 领导看板时不丢失大盘视图 */
+  const openDrill = useCallback((url: string) => {
+    window.open(url, "_blank", "noopener,noreferrer");
+  }, []);
+
+  // 柱状图下钻：点击某道工序 → 任务全景页点亮「当前工序」列筛选
+  const handleBarClick = useCallback((params: any) => {
+    const stage = params?.name;
+    if (!stage) return;
+    openDrill(`/admin/tasks?stage=${encodeURIComponent(stage)}`);
+  }, [openDrill]);
+
+  // ── 横向柱状图：车间工序积压分布 ──
+  const distOption = useMemo<EChartsCoreOption>(() => {
+    const items = dist?.items ?? [];
+    const total = dist?.total ?? 0;
+    return {
+      tooltip: {
+        trigger: "axis",
+        axisPointer: { type: "shadow" },
+        formatter: (params: any) => {
+          const row = items[params[0]?.dataIndex ?? 0];
+          if (!row) return "";
+          const pct = total ? ((row.count / total) * 100).toFixed(1) : "0.0";
+          const phaseLabel = row.phase === "AFTER_SALES" ? "售后段" : "生产段";
+          return `${row.stage}（${phaseLabel}）<br/><b>${row.count}</b> 台 · 占比 ${pct}%`;
+        },
+        ...TOOLTIP_STYLE,
+      },
+      grid: { left: 6, right: 52, top: 8, bottom: 2, containLabel: true },
+      xAxis: {
+        type: "value",
+        minInterval: 1,
+        axisLabel: { color: AXIS_COLOR, fontSize: 11 },
+        splitLine: { lineStyle: { color: GRID_COLOR } },
+      },
+      yAxis: {
+        type: "category",
+        data: items.map((i) => i.stage),
+        inverse: true,          // 首项（待启动）排在最上方，保持工序先后顺序
+        axisLine: { lineStyle: { color: "#d1d5db" } },
+        axisTick: { show: false },
+        axisLabel: { color: TEXT_COLOR, fontSize: 13 },
+      },
+      series: [{
+        type: "bar",
+        barMaxWidth: 26,
+        data: items.map((i) => i.count),
+        itemStyle: {
+          // 回调按生命周期阶段区分生产段 / 售后段
+          color: (p: any) => (items[p.dataIndex]?.phase === "AFTER_SALES"
+            ? COLOR_AFTER_SALES
+            : COLOR_PRODUCTION),
+          borderRadius: [0, 4, 4, 0],
+        },
+        label: {
+          show: true,
+          position: "right",
+          color: TEXT_COLOR,
+          fontSize: 12,
+          fontWeight: "bold",
+        },
+      }],
+    };
+  }, [dist]);
+
+  // 仅展示本月确实有操作的人员 —— 0 接收 / 0 转交 / 0 备注 一律隐藏
+  const activeUsers = (users?.items ?? []).filter((u) => u.total > 0);
+  const maxTotal = activeUsers.length ? Math.max(...activeUsers.map((u) => u.total)) : 1;
+
+  // 明细抽屉的时间范围取「本月」，与顶部卡片口径一致
+  const monthSince = metrics
+    ? new Date(`${metrics.month_start}T00:00:00+08:00`).toISOString()
+    : undefined;
+
+  function openUserDetail(u: ActiveUser, actionType: string, label: string) {
+    opDetailRef.current?.open({
+      userId: u.user_id,
+      userName: u.user_name,
+      actionType,
+      label,
+      since: monthSince,
+    });
+  }
+
+  /** 整行点击：默认展开该人首个有记录的操作类型（与行内数字按钮同源） */
+  function openUserRow(u: ActiveUser) {
+    if (u.receive_count > 0) return openUserDetail(u, "receive", "接收");
+    if (u.transfer_count > 0) return openUserDetail(u, "transfer", "转交");
+    return openUserDetail(u, "record", "上传备注");
+  }
+
+  return (
+    <div className="flex h-screen w-screen flex-col overflow-hidden bg-gray-50 text-gray-800">
+      {/* ── 顶栏 ── */}
+      <header className="flex shrink-0 items-center justify-between border-b border-gray-200 bg-white px-6 py-2.5">
+        <div className="flex items-center gap-3">
+          <span className="h-5 w-1.5 rounded-full bg-blue-600" />
+          <h1 className="text-lg font-bold tracking-wide text-gray-800">
+            生产流转 · 管理层数据大屏
+          </h1>
+          {metrics?.month && (
+            <span className="rounded bg-blue-50 px-2 py-0.5 text-xs font-medium text-blue-700">
+              {metrics.month} 当月
+            </span>
+          )}
+          {error && (
+            <span className="rounded bg-red-50 px-2 py-0.5 text-xs text-red-600">{error}</span>
+          )}
+        </div>
+
+        <div className="flex items-center gap-4 text-xs text-gray-500">
+          <span className="tabular-nums">最后更新 {updatedAt || "—"}</span>
+          <button
+            onClick={load}
+            disabled={refreshing}
+            className="flex items-center gap-1.5 rounded-md border border-gray-300 px-2.5 py-1 transition-colors hover:border-blue-500 hover:text-blue-600 disabled:opacity-50"
+          >
+            <RefreshCw className={`h-3.5 w-3.5 ${refreshing ? "animate-spin" : ""}`} />
+            刷新
+          </button>
+          <button
+            onClick={toggleFullscreen}
+            className="flex items-center gap-1.5 rounded-md border border-gray-300 px-2.5 py-1 transition-colors hover:border-blue-500 hover:text-blue-600"
+          >
+            {isFullscreen ? <Minimize2 className="h-3.5 w-3.5" /> : <Maximize2 className="h-3.5 w-3.5" />}
+            {isFullscreen ? "退出全屏" : "全屏"}
+          </button>
+          <button
+            onClick={() => navigate("/admin/dashboard")}
+            className="flex items-center gap-1.5 rounded-md border border-gray-300 px-2.5 py-1 transition-colors hover:border-blue-500 hover:text-blue-600"
+          >
+            <ArrowLeft className="h-3.5 w-3.5" />
+            返回后台
+          </button>
+        </div>
+      </header>
+
+      <main className="flex min-h-0 flex-1 flex-col gap-4 p-4">
+        {/* ── 顶部一排：4 张当月指标卡（点击新标签页下钻任务全景） ── */}
+        <div className="grid shrink-0 grid-cols-4 gap-4">
+          <MetricCard
+            label="本月生产流转"
+            value={metrics?.month_production ?? 0}
+            tone="text-cyan-600"
+            hint="本月有流转或新建的生产态设备"
+            onClick={() => openDrill("/admin/tasks?status=WIP")}
+          />
+          <MetricCard
+            label="本月已入库"
+            value={metrics?.month_inbound ?? 0}
+            tone="text-sky-600"
+            hint="扫码入库完成"
+            /* 直接点亮任务页原生的「已入库」Tab */
+            onClick={() => openDrill("/admin/tasks?status=ARCHIVED")}
+          />
+          <MetricCard
+            label="本月已出库"
+            value={metrics?.month_outbound ?? 0}
+            tone="text-green-600"
+            hint="扫码出库发货"
+            onClick={() => openDrill("/admin/tasks?status=OUTBOUND")}
+          />
+          <MetricCard
+            label="本月返厂回流"
+            value={metrics?.month_returned ?? 0}
+            tone="text-orange-600"
+            hint="本月转入售后阶段"
+            /* 直接点亮原生的「售后流转中」Tab */
+            onClick={() => openDrill("/admin/tasks?status=AFTER_SALES_WIP")}
+          />
+        </div>
+
+        {/* ── 主区：左积压分布 + 右活跃度 ── */}
+        <div className="grid min-h-0 flex-1 grid-cols-12 gap-4">
+          {/* 左·主图区 */}
+          <section className="col-span-7 flex min-h-0 flex-col rounded-xl border border-gray-200 bg-white p-4 shadow-sm">
+            <PanelTitle
+              extra={
+                <div className="flex items-center gap-3 text-xs">
+                  <span className="flex items-center gap-1.5 text-gray-500">
+                    <span className="h-2 w-2 rounded-sm" style={{ background: COLOR_PRODUCTION }} />
+                    生产段
+                  </span>
+                  <span className="flex items-center gap-1.5 text-gray-500">
+                    <span className="h-2 w-2 rounded-sm" style={{ background: COLOR_AFTER_SALES }} />
+                    售后段
+                  </span>
+                  <span className="text-gray-500">
+                    未完结合计 <b className="text-cyan-600">{dist?.total ?? 0}</b> 台
+                  </span>
+                </div>
+              }
+            >
+              车间工序积压分布
+            </PanelTitle>
+            <div className="min-h-0 flex-1">
+              <BaseEChart
+                option={distOption}
+                height="100%"
+                onEvents={{ click: handleBarClick }}
+              />
+            </div>
+          </section>
+
+          {/* 右·侧边区：系统活跃度排行（主体，撑满右侧高度） */}
+          <div className="col-span-5 flex min-h-0 flex-col">
+            <section className="flex min-h-0 flex-1 flex-col rounded-xl border border-gray-200 bg-white p-4 shadow-sm">
+              <PanelTitle
+                extra={
+                  <span className="text-xs text-gray-400">
+                    本月活跃 {activeUsers.length} 人 · 点击查看明细
+                  </span>
+                }
+              >
+                系统活跃度排行
+              </PanelTitle>
+              <div className="min-h-0 flex-1 overflow-hidden">
+                {activeUsers.length > 0 ? (
+                  <table className="w-full text-xs">
+                    <thead>
+                      <tr className="text-gray-400">
+                        <th className="pb-1.5 text-left font-normal">姓名</th>
+                        <th className="w-10 pb-1.5 text-right font-normal">接收</th>
+                        <th className="w-10 pb-1.5 text-right font-normal">转交</th>
+                        <th className="w-10 pb-1.5 text-right font-normal">备注</th>
+                        <th className="w-12 pb-1.5 text-right font-normal">合计</th>
+                      </tr>
+                    </thead>
+                    <tbody>
+                      {activeUsers.map((u) => (
+                        <tr
+                          key={u.user_id}
+                          title="点击查看该人员的操作明细"
+                          onClick={() => openUserRow(u)}
+                          className="cursor-pointer border-t border-gray-100 transition-colors hover:bg-gray-50"
+                        >
+                          <td className="py-1.5 pr-2">
+                            <div className="flex items-center gap-2">
+                              <span className="w-14 shrink-0 truncate text-gray-700">
+                                {u.user_name}
+                              </span>
+                              {/* 胶囊条：相对活跃度 */}
+                              <div className="h-1 min-w-0 flex-1 rounded-full bg-gray-100">
+                                <div
+                                  className="h-1 rounded-full bg-blue-500"
+                                  style={{ width: `${Math.max((u.total / maxTotal) * 100, 6)}%` }}
+                                />
+                              </div>
+                            </div>
+                          </td>
+                          {/* 与「全局概览 · 人员操作统计」一致：点数字看对应类型的明细 */}
+                          {([
+                            ["receive", u.receive_count],
+                            ["transfer", u.transfer_count],
+                            ["record", u.record_count],
+                          ] as const).map(([type, cnt]) => (
+                            <td key={type} className="py-1.5 text-right">
+                              <button
+                                onClick={(e) => {
+                                  e.stopPropagation(); // 不冒泡触发整行的默认下钻
+                                  openUserDetail(u, type, OP_LABELS[type]);
+                                }}
+                                className="cursor-pointer tabular-nums text-gray-500 transition-colors hover:text-blue-600 hover:underline"
+                              >
+                                {cnt}
+                              </button>
+                            </td>
+                          ))}
+                          <td className="py-1.5 text-right font-bold tabular-nums text-blue-600">{u.total}</td>
+                        </tr>
+                      ))}
+                    </tbody>
+                  </table>
+                ) : (
+                  <div className="flex h-full items-center justify-center text-sm text-gray-400">
+                    {users ? "本月暂无操作记录" : "加载中…"}
+                  </div>
+                )}
+              </div>
+            </section>
+          </div>
+        </div>
+      </main>
+
+      {/* 操作明细抽屉 — 与「全局概览」共用同一组件（亮色主题，与系统一致） */}
+      <UserOperationDetailDrawer ref={opDetailRef} />
+    </div>
+  );
+}
+
+// ============================================================
+// 局部小组件
+// ============================================================
+
+function PanelTitle({ children, extra }: { children: ReactNode; extra?: ReactNode }) {
+  return (
+    <div className="mb-2 flex shrink-0 items-center justify-between">
+      <h2 className="flex items-center gap-2 text-sm font-semibold tracking-wide text-gray-700">
+        <span className="h-3.5 w-1 rounded-full bg-blue-600" />
+        {children}
+      </h2>
+      {extra}
+    </div>
+  );
+}
+
+function MetricCard({
+  label, value, tone, hint, onClick,
+}: {
+  label: string;
+  value: number;
+  tone: string;
+  hint: string;
+  onClick?: () => void;
+}) {
+  return (
+    <div
+      onClick={onClick}
+      role={onClick ? "button" : undefined}
+      className={`rounded-xl border border-gray-200 bg-white px-5 py-3 shadow-sm transition-colors ${
+        onClick ? "cursor-pointer hover:border-blue-400 hover:bg-blue-50/40" : ""
+      }`}
+    >
+      <p className="text-xs text-gray-500">{label}</p>
+      <div className="mt-0.5 flex items-baseline gap-1.5">
+        <span className={`text-4xl font-bold tabular-nums ${tone}`}>{value}</span>
+        <span className="text-xs text-gray-400">台</span>
+      </div>
+      <p className="mt-0.5 text-[11px] text-gray-400">{hint}</p>
+      {onClick && <p className="mt-1 text-[10px] text-blue-500">点击下钻（新标签页）→</p>}
+    </div>
+  );
+}
diff --git a/frontend/src/services/screenApi.ts b/frontend/src/services/screenApi.ts
new file mode 100644
index 0000000..641b235
--- /dev/null
+++ b/frontend/src/services/screenApi.ts
@@ -0,0 +1,62 @@
+/** 管理层数据大屏 — 前后端数据契约类型 + API
+ *  对应后端 app/services/screen_service.py 的 Pydantic Schema
+ */
+import api from "./api";
+
+// ─── 当月吞吐（顶部数字卡） ────────────────────────────────
+export interface MonthlyMetrics {
+  month: string;             // "2026-09"
+  month_start: string;       // "2026-09-01"（北京时间）
+  month_production: number;  // 本月有流转记录或新建的生产态设备数
+  month_inbound: number;     // 本月扫码入库数
+  month_outbound: number;    // 本月扫码出库数
+  month_returned: number;    // 本月进入售后/回流状态的设备数
+}
+
+// ─── 工序积压分布（柱状图） ────────────────────────────────
+export interface WipStage {
+  stage: string;
+  phase: "PRODUCTION" | "AFTER_SALES";
+  count: number;
+}
+
+export interface WipDistributionResponse {
+  total: number;
+  items: WipStage[];
+}
+
+// ─── 系统使用活跃度 ────────────────────────────────────────
+export interface ActiveUser {
+  user_id: string;
+  user_name: string;
+  receive_count: number;
+  transfer_count: number;
+  record_count: number;
+  total: number;
+}
+
+export interface ActiveUsersResponse {
+  month: string;
+  items: ActiveUser[];
+}
+
+// ============================================================
+// API 方法
+// ============================================================
+
+export async function fetchMonthlyMetrics(): Promise<MonthlyMetrics> {
+  const { data } = await api.get<MonthlyMetrics>("/screen/monthly-metrics");
+  return data;
+}
+
+export async function fetchWipDistribution(): Promise<WipDistributionResponse> {
+  const { data } = await api.get<WipDistributionResponse>("/screen/wip-distribution");
+  return data;
+}
+
+export async function fetchActiveUsers(topN = 5): Promise<ActiveUsersResponse> {
+  const { data } = await api.get<ActiveUsersResponse>("/screen/active-users", {
+    params: { top_n: topN },
+  });
+  return data;
+}