diff --git a/frontend/src/components/BaseEChart.tsx b/frontend/src/components/BaseEChart.tsx
index edaf902..a3dbc9e 100644
--- a/frontend/src/components/BaseEChart.tsx
+++ b/frontend/src/components/BaseEChart.tsx
@@ -2,7 +2,7 @@
  *  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 } from "echarts/charts";
+import { LineChart, BarChart, CustomChart } from "echarts/charts";
 import {
   GridComponent, TooltipComponent, LegendComponent, DataZoomComponent,
 } from "echarts/components";
@@ -13,6 +13,7 @@ import type { EChartsCoreOption } from "echarts/core";
 echarts.use([
   LineChart,
   BarChart,
+  CustomChart,
   GridComponent,
   TooltipComponent,
   LegendComponent,
diff --git a/frontend/src/services/analyticsApi.ts b/frontend/src/services/analyticsApi.ts
index 6009885..104a1ee 100644
--- a/frontend/src/services/analyticsApi.ts
+++ b/frontend/src/services/analyticsApi.ts
@@ -38,11 +38,16 @@ export interface FlowDevice {
   external_serial: string | null;
   material_name: string;
   spec_model: string;
+  lead_time: number;   // 设备生命周期总时长（小时）
+  started_at: string;  // 设备最早介入时间（T0），MM-DD HH:mm
 }
 
+// 时间区间：deviceIndex, startOffset, endOffset, taskName, duration, isMain
+export type FlowInterval = [number, number, number, string, number, number];
+
 export interface FlowSeries {
-  name: string;              // 工序节点名
-  data: (number | null)[];   // 每台设备在该工序的总耗时（未经过为 null）
+  name: string;         // 人员姓名
+  data: FlowInterval[]; // 该人员的任务时间区间列表（同一设备可多次出现）
 }
 
 export interface FlowResponse {