feat(selection): rework results layout and add sector filter

- move the filter bar out of the list column into a full-width top section;
  list and detail stay side by side below on md+, stacking search > list >
  detail on small screens
- add sector select fed by the run's concept-board aggregates; options show
  per-sector stock counts ordered by count desc, stale selections reset when
  the aggregate list changes
- persist sector in the route search, results/runs query keys, and refresh
  sector aggregates when a selection run finishes

zhixing-web/src/features/selection/api/selection.api.ts

@@ -7,6 +7,7 @@ import {
   type SelectionResultsQuery,
   type SelectionRunAccepted,
   type SelectionRunRequest,
+  type SelectionSectors,
   type SelectionStrategy,
 } from "./selection.types"
 
@@ -63,9 +64,27 @@ function buildSelectionQueryParams(query: SelectionResultsQuery) {
   if (query.search) params.set("search", query.search)
   if (query.category) params.set("category", query.category)
   if (query.sort) params.set("sort", query.sort)
+  if (query.sector) params.set("sector", query.sector)
   return params
 }
 
+export function getSelectionResultSectors(
+  strategy: SelectionStrategy,
+  targetTradeDate?: string,
+  sectorType: "concept" | "industry" = "concept",
+  signal?: AbortSignal,
+) {
+  const params = new URLSearchParams({
+    strategy,
+    sector_type: sectorType,
+  })
+  if (targetTradeDate) params.set("target_trade_date", targetTradeDate)
+  return requestJson<SelectionSectors>(
+    `/api/v1/selection/sectors?${params.toString()}`,
+    { signal },
+  )
+}
+
 export function triggerSelectionRun(
   request: SelectionRunRequest,
   signal?: AbortSignal,

zhixing-web/src/features/selection/api/selection.query.test.ts

@@ -69,6 +69,7 @@ describe("selection query hooks", () => {
         "平安",
         "pullback",
         "score_desc",
+        "",
       ],
     )
     expect(

zhixing-web/src/features/selection/api/selection.query.ts

@@ -10,6 +10,7 @@ import { useEffect } from "react"
 
 import {
   getSelectionChart,
+  getSelectionResultSectors,
   getSelectionResults,
   getSelectionRun,
   triggerSelectionRun,
@@ -19,6 +20,7 @@ import {
   type SelectionResults,
   type SelectionResultsQuery,
   type SelectionRunRequest,
+  type SelectionSectors,
   type SelectionStrategy,
 } from "./selection.types"
 
@@ -55,6 +57,7 @@ export const selectionResultsQueryKey = (
     query.search ?? "",
     query.category ?? "all",
     query.sort ?? "code",
+    query.sector ?? "",
   ] as const
 
 export const selectionRunQueryKey = (
@@ -69,8 +72,15 @@ export const selectionRunQueryKey = (
     query.search ?? "",
     query.category ?? "all",
     query.sort ?? "code",
+    query.sector ?? "",
   ] as const
 
+export const selectionSectorsQueryKey = (
+  strategy: SelectionStrategy,
+  targetTradeDate?: string,
+  sectorType: "concept" | "industry" = "concept",
+) => ["selection", "sectors", strategy, targetTradeDate, sectorType] as const
+
 export function flattenSelectionResults(
   data: InfiniteData<SelectionResults> | undefined,
 ): SelectionResults | undefined {
@@ -120,6 +130,18 @@ export function useSelectionChart(
   })
 }
 
+export function useSelectionResultSectors(
+  strategy: SelectionStrategy,
+  targetTradeDate?: string,
+  sectorType: "concept" | "industry" = "concept",
+) {
+  return useQuery<SelectionSectors, Error>({
+    queryFn: ({ signal }) =>
+      getSelectionResultSectors(strategy, targetTradeDate, sectorType, signal),
+    queryKey: selectionSectorsQueryKey(strategy, targetTradeDate, sectorType),
+  })
+}
+
 export function useSelectionRun(
   runId: string | null,
   resultQuery: SelectionResultsListQuery = defaultListQuery,
@@ -173,9 +195,14 @@ export function invalidateSelectionResults(
   queryClient: QueryClient,
   strategy: SelectionStrategy,
 ) {
-  return queryClient.invalidateQueries({
-    queryKey: ["selection", "results", strategy],
-  })
+  return Promise.all([
+    queryClient.invalidateQueries({
+      queryKey: ["selection", "results", strategy],
+    }),
+    queryClient.invalidateQueries({
+      queryKey: ["selection", "sectors", strategy],
+    }),
+  ])
 }
 
 function nextSelectionPageParam(

zhixing-web/src/features/selection/api/selection.types.ts

@@ -25,6 +25,27 @@ export interface SelectionResultsQuery {
   search?: string
   category?: Exclude<SelectionCategoryFilter, "all">
   sort?: SelectionSort
+  sector?: string
+}
+
+export type SelectionSectorType = "concept" | "industry"
+
+export const selectionSectorTypes = ["concept", "industry"] as const
+
+export interface SelectionSectorAggregate {
+  sector_code: string
+  sector_name: string
+  stock_count: number
+}
+
+export interface SelectionSectors {
+  strategy: SelectionStrategy
+  target_trade_date: string | null
+  run_id: string | null
+  status: SelectionRunStatus
+  snapshot_trade_date: string | null
+  sector_type: SelectionSectorType
+  sectors: SelectionSectorAggregate[]
 }
 
 export type SelectionRunStatus =

zhixing-web/src/features/selection/components/selection-results-workbench.tsx

@@ -1,4 +1,4 @@
-import { useMemo, useRef, useState } from "react"
+import { useEffect, useMemo, useRef, useState } from "react"
 import { useNavigate, useSearch } from "@tanstack/react-router"
 
 import { Input } from "@/shared/ui/input"
@@ -11,7 +11,11 @@ import {
   SelectValue,
 } from "@/shared/ui/select"
 
-import type { SelectionResults, SelectionSort } from "../api/selection.types"
+import type {
+  SelectionResults,
+  SelectionSectorAggregate,
+  SelectionSort,
+} from "../api/selection.types"
 import { SignalDetailPanel } from "./signal-detail-panel"
 import { SignalRecordList } from "./signal-record-list"
 import {
@@ -30,12 +34,15 @@ const SCORE_SORT_OPTIONS: ReadonlyArray<{
   { label: "评分从低到高", value: "score_asc" },
 ]
 
+const ALL_SECTORS_VALUE = "all"
+
 interface SelectionResultsWorkbenchProps {
   hasNextPage: boolean
   isFetchNextPageError: boolean
   isFetchingNextPage: boolean
   onLoadMore: () => void | Promise<unknown>
   result: SelectionResults
+  sectorOptions: ReadonlyArray<SelectionSectorAggregate>
 }
 
 export function SelectionResultsWorkbench({
@@ -44,12 +51,14 @@ export function SelectionResultsWorkbench({
   isFetchingNextPage,
   onLoadMore,
   result,
+  sectorOptions,
 }: SelectionResultsWorkbenchProps) {
   const search = useSearch({ from: "/_workspace/selection" })
   const navigate = useNavigate({ from: "/selection" })
   const query = search.search ?? ""
   const category = search.category ?? "all"
   const sort = search.sort ?? "code"
+  const sector = search.sector
   const [selectedKey, setSelectedKey] = useState<string | null>(null)
   const loadMoreRequestPending = useRef(false)
 
@@ -68,11 +77,32 @@ export function SelectionResultsWorkbench({
   const selectedStock =
     visibleStocks.find((stock) => getStockKey(stock) === selectedKey) ??
     visibleStocks[0]
+  const sectorSelectItems = useMemo(
+    () => [
+      { label: "全部板块", value: ALL_SECTORS_VALUE },
+      ...sectorOptions.map((option) => ({
+        label: option.sector_name,
+        value: option.sector_code,
+      })),
+    ],
+    [sectorOptions],
+  )
+
+  // The aggregate list is the source of truth for valid sectors; drop a stale
+  // value left over from another strategy or trade date.
+  useEffect(() => {
+    if (!sector) return
+    if (sectorOptions.some((option) => option.sector_code === sector)) return
+    void navigate({
+      search: (previous) => ({ ...previous, sector: undefined }),
+    })
+  }, [navigate, sector, sectorOptions])
 
   function updateSearch(next: {
     search?: string
     category?: SignalCategoryFilter
     sort?: SelectionSort
+    sector?: string
   }) {
     void navigate({ search: (previous) => ({ ...previous, ...next }) })
   }
@@ -89,6 +119,10 @@ export function SelectionResultsWorkbench({
     updateSearch({ sort: value })
   }
 
+  function handleSectorChange(value: string) {
+    updateSearch({ sector: value === ALL_SECTORS_VALUE ? undefined : value })
+  }
+
   function requestLoadMore() {
     if (
       loadMoreRequestPending.current ||
@@ -105,9 +139,9 @@ export function SelectionResultsWorkbench({
   }
 
   return (
-    <div className="flex min-h-0 min-w-0 flex-1 flex-col gap-2 overflow-hidden md:grid md:grid-cols-[320px_minmax(0,1fr)]">
-      <section className="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-md border border-border/80 bg-card">
-        <div className="flex shrink-0 flex-wrap items-center gap-1.5 border-b border-border/60 p-2.5">
+    <div className="flex min-h-0 min-w-0 flex-1 flex-col gap-2 overflow-hidden">
+      <section className="shrink-0 rounded-md border border-border/80 bg-card">
+        <div className="flex flex-wrap items-center gap-1.5 p-2.5">
           <Input
             aria-label="搜索命中股票"
             className="h-11 min-w-0 flex-1 bg-background text-sm sm:max-w-[260px] md:h-8"
@@ -116,6 +150,38 @@ export function SelectionResultsWorkbench({
             type="search"
             value={query}
           />
+          <Select
+            items={sectorSelectItems}
+            onValueChange={(value) => {
+              if (typeof value === "string") handleSectorChange(value)
+            }}
+            value={sector ?? ALL_SECTORS_VALUE}
+          >
+            <SelectTrigger
+              aria-label="筛选板块"
+              className="h-11 w-full bg-background text-sm sm:w-auto sm:min-w-36 md:h-8"
+            >
+              <SelectValue placeholder="筛选板块" />
+            </SelectTrigger>
+            <SelectContent>
+              <SelectGroup>
+                <SelectItem value={ALL_SECTORS_VALUE}>全部板块</SelectItem>
+                {sectorOptions.map((option) => (
+                  <SelectItem
+                    key={option.sector_code}
+                    value={option.sector_code}
+                  >
+                    <span className="flex w-full items-center justify-between gap-3">
+                      <span>{option.sector_name}</span>
+                      <span className="tabular-nums text-muted-foreground">
+                        {option.stock_count}
+                      </span>
+                    </span>
+                  </SelectItem>
+                ))}
+              </SelectGroup>
+            </SelectContent>
+          </Select>
           <Select
             items={signalCategoryOptions}
             onValueChange={(value) => {
@@ -170,24 +236,28 @@ export function SelectionResultsWorkbench({
             筛选结果 {stocksTotal} 只
           </span>
         </div>
-
-        <div className="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden">
-          <SignalRecordList
-            isFetchNextPageError={isFetchNextPageError}
-            isFetchingNextPage={isFetchingNextPage}
-            onLoadMore={requestLoadMore}
-            onRetryLoadMore={() => {
-              loadMoreRequestPending.current = false
-              onLoadMore()
-            }}
-            onSelect={(stock) => setSelectedKey(getStockKey(stock))}
-            selectedKey={selectedStock ? getStockKey(selectedStock) : null}
-            stocks={visibleStocks}
-          />
-        </div>
       </section>
 
-      <SignalDetailPanel stock={selectedStock} />
+      <div className="flex min-h-0 min-w-0 flex-1 flex-col gap-2 overflow-hidden md:grid md:grid-cols-[320px_minmax(0,1fr)]">
+        <section className="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-md border border-border/80 bg-card">
+          <div className="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden">
+            <SignalRecordList
+              isFetchNextPageError={isFetchNextPageError}
+              isFetchingNextPage={isFetchingNextPage}
+              onLoadMore={requestLoadMore}
+              onRetryLoadMore={() => {
+                loadMoreRequestPending.current = false
+                onLoadMore()
+              }}
+              onSelect={(stock) => setSelectedKey(getStockKey(stock))}
+              selectedKey={selectedStock ? getStockKey(selectedStock) : null}
+              stocks={visibleStocks}
+            />
+          </div>
+        </section>
+
+        <SignalDetailPanel stock={selectedStock} />
+      </div>
     </div>
   )
 }

zhixing-web/src/features/selection/pages/selection-results-page.test.tsx

@@ -16,6 +16,7 @@ import { SelectionResultsPage } from "./selection-results-page"
 
 const routerNavigate = vi.hoisted(() => vi.fn())
 const useSelectionResults = vi.fn()
+const useSelectionResultSectors = vi.fn()
 const useSelectionChart = vi.fn()
 const useStockSectorMembership = vi.fn()
 const useSelectionRun = vi.fn()
@@ -31,6 +32,8 @@ vi.mock("@/features/selection/api/selection.query", async () => {
   return {
     ...actual,
     useSelectionResults: (...args: unknown[]) => useSelectionResults(...args),
+    useSelectionResultSectors: (...args: unknown[]) =>
+      useSelectionResultSectors(...args),
     useSelectionChart: (...args: unknown[]) => useSelectionChart(...args),
     useSelectionRun: (...args: unknown[]) => useSelectionRun(...args),
     useTriggerSelectionRun: () => useTriggerSelectionRun(),
@@ -169,6 +172,11 @@ describe("SelectionResultsPage", () => {
       isPending: false,
     })
     useSelectionResults.mockReturnValue(selectionQueryResult(selectedResult))
+    useSelectionResultSectors.mockReturnValue({
+      data: undefined,
+      isError: false,
+      isPending: false,
+    })
     useSelectionRun.mockReturnValue(emptySelectionQuery())
     useTriggerSelectionRun.mockReturnValue({
       isError: false,
@@ -535,6 +543,45 @@ describe("SelectionResultsPage", () => {
     })
   })
 
+  it("filters by sector and shows per-sector counts", async () => {
+    useSelectionResultSectors.mockReturnValue({
+      data: {
+        strategy: "zhixing_b1",
+        target_trade_date: "2026-08-08",
+        run_id: "run-1",
+        status: "success",
+        snapshot_trade_date: "2026-08-08",
+        sector_type: "concept",
+        sectors: [
+          { sector_code: "BK0001.DC", sector_name: "机器人", stock_count: 3 },
+          { sector_code: "BK0003.DC", sector_name: "数字经济", stock_count: 2 },
+        ],
+      },
+      isError: false,
+      isPending: false,
+    })
+    render(<SelectionResultsPage />)
+
+    const sectorTrigger = screen.getByRole("combobox", { name: "筛选板块" })
+    expect(sectorTrigger).toHaveTextContent("全部板块")
+
+    fireEvent.click(sectorTrigger)
+    const robotOption = await screen.findByRole("option", {
+      name: /机器人/,
+    })
+    expect(robotOption).toHaveTextContent("3")
+    fireEvent.pointerDown(robotOption, { pointerType: "mouse" })
+    fireEvent.click(robotOption)
+
+    expect(routerNavigate).toHaveBeenCalled()
+    const lastCall =
+      routerNavigate.mock.calls[routerNavigate.mock.calls.length - 1]
+    const searchUpdate = lastCall[0].search as (previous: {
+      sector?: string
+    }) => Record<string, unknown>
+    expect(searchUpdate({})).toEqual({ sector: "BK0001.DC" })
+  })
+
   it("requests database-backed score sorting", async () => {
     render(<SelectionResultsPage />)
 

zhixing-web/src/features/selection/pages/selection-results-page.tsx

@@ -5,6 +5,7 @@ import { useRef, useState, type RefObject } from "react"
 import { PageLayout } from "@/app/layout/page-layout"
 import {
   flattenSelectionResults,
+  useSelectionResultSectors,
   useSelectionResults,
   useSelectionRun,
   useTriggerSelectionRun,
@@ -14,6 +15,8 @@ import {
   selectionStrategies,
   type SelectionResults,
   type SelectionResultsQuery,
+  type SelectionSectorAggregate,
+  type SelectionSectors,
   type SelectionStrategy,
 } from "@/features/selection/api/selection.types"
 import { Button } from "@/shared/ui/button"
@@ -71,6 +74,7 @@ export function SelectionResultsPage() {
     pageSize: selectionResultPageSize,
     ...(search.search ? { search: search.search } : {}),
     ...(search.category !== "all" ? { category: search.category } : {}),
+    ...(search.sector ? { sector: search.sector } : {}),
     sort: search.sort,
   }
 
@@ -79,6 +83,10 @@ export function SelectionResultsPage() {
     targetTradeDate || undefined,
     resultQuery,
   )
+  const sectorsQuery = useSelectionResultSectors(
+    strategy,
+    targetTradeDate || undefined,
+  )
   const resultsSnapshot = flattenSelectionResults(results.data)
   const persistedRunningRunId =
     resultsSnapshot?.status === "running" ? resultsSnapshot.run_id : null
@@ -156,7 +164,11 @@ export function SelectionResultsPage() {
     setRerunDialogOpen(false)
     trigger.reset()
     void navigate({
-      search: (previous) => ({ ...previous, category: "all" }),
+      search: (previous) => ({
+        ...previous,
+        category: "all",
+        sector: undefined,
+      }),
     })
   }
 
@@ -212,6 +224,7 @@ export function SelectionResultsPage() {
               isFetchingNextPage={Boolean(listQuery.isFetchingNextPage)}
               onLoadMore={() => listQuery.fetchNextPage()}
               result={displayedResult}
+              sectors={sectorsQuery.data}
             />
           ) : null}
         </div>
@@ -376,8 +389,11 @@ interface ResultStateProps {
   isFetchingNextPage: boolean
   onLoadMore: () => void | Promise<unknown>
   result: SelectionResults
+  sectors: SelectionSectors | undefined
 }
 
+const EMPTY_SECTOR_OPTIONS: ReadonlyArray<SelectionSectorAggregate> = []
+
 function parseLocalTradeDate(value: string): Date | undefined {
   const match = /^(\d{4})-(\d{2})-(\d{2})$/.exec(value)
   if (!match) return undefined
@@ -511,6 +527,7 @@ function ResultState({
   isFetchingNextPage,
   onLoadMore,
   result,
+  sectors,
 }: ResultStateProps) {
   return result.signal_count === 0 ? (
     <NoSignalState />
@@ -521,6 +538,7 @@ function ResultState({
       isFetchingNextPage={isFetchingNextPage}
       onLoadMore={onLoadMore}
       result={result}
+      sectorOptions={sectors?.sectors ?? EMPTY_SECTOR_OPTIONS}
     />
   )
 }