diff --git a/client/src/api/expenseStandards.ts b/client/src/api/expenseStandards.ts
new file mode 100644
index 00000000..8a4917e5
--- /dev/null
+++ b/client/src/api/expenseStandards.ts
@@ -0,0 +1,90 @@
+import { apiRequestData } from "./http";
+
+export type ExpenseStandardPerUnit = "item" | "day" | "trip";
+export type ExpenseStandardControlMode = "warn" | "block";
+export type ExpenseStandardScopeType = "global" | "department";
+
+export type ExpenseStandard = {
+  id: string;
+  expenseTypeId: string;
+  expenseTypeName: string | null;
+  name: string;
+  maxAmount: string;
+  perUnit: ExpenseStandardPerUnit;
+  controlMode: ExpenseStandardControlMode;
+  scopeType: ExpenseStandardScopeType;
+  scopeKey: string | null;
+  scopeLabel: string;
+  enabled: boolean;
+  note: string | null;
+  createdAt: string | null;
+  updatedAt: string | null;
+};
+
+export type ExpenseStandardListResponse = {
+  expenseTypeId: string | null;
+  scopeType: ExpenseStandardScopeType | null;
+  enabled: boolean | null;
+  items: ExpenseStandard[];
+};
+
+export type ExpenseStandardListQuery = {
+  expenseTypeId?: string;
+  scopeType?: ExpenseStandardScopeType;
+  enabled?: boolean;
+};
+
+export type CreateExpenseStandardPayload = {
+  expenseTypeId: string;
+  name: string;
+  maxAmount: string;
+  perUnit?: ExpenseStandardPerUnit;
+  controlMode?: ExpenseStandardControlMode;
+  scopeType?: ExpenseStandardScopeType;
+  scopeKey?: string | null;
+  enabled?: boolean;
+  note?: string | null;
+};
+
+export type UpdateExpenseStandardPayload = Partial<CreateExpenseStandardPayload>;
+
+function toQueryString(query: Record<string, string | number | boolean | undefined>) {
+  const params = new URLSearchParams();
+
+  for (const [key, value] of Object.entries(query)) {
+    if (value == null || value === "") {
+      continue;
+    }
+    params.set(key, String(value));
+  }
+
+  const encoded = params.toString();
+  return encoded ? `?${encoded}` : "";
+}
+
+export async function fetchExpenseStandards(query: ExpenseStandardListQuery = {}) {
+  return apiRequestData<ExpenseStandardListResponse>(
+    `/api/expense-standards${toQueryString(query as Record<string, string | number | boolean | undefined>)}`,
+  );
+}
+
+export async function createExpenseStandard(payload: CreateExpenseStandardPayload) {
+  return apiRequestData<ExpenseStandard>("/api/expense-standards", {
+    method: "POST",
+    body: JSON.stringify(payload),
+  });
+}
+
+export async function updateExpenseStandard(standardId: string, payload: UpdateExpenseStandardPayload) {
+  return apiRequestData<ExpenseStandard>(`/api/expense-standards/${standardId}`, {
+    method: "PATCH",
+    body: JSON.stringify(payload),
+  });
+}
+
+export async function deleteExpenseStandard(standardId: string) {
+  return apiRequestData<ExpenseStandard>(`/api/expense-standards/${standardId}`, {
+    method: "DELETE",
+    body: JSON.stringify({}),
+  });
+}
diff --git a/client/src/api/feeControl.ts b/client/src/api/feeControl.ts
index 77cc711b..9329e0f3 100644
--- a/client/src/api/feeControl.ts
+++ b/client/src/api/feeControl.ts
@@ -19,6 +19,22 @@ export type RiskFlag = {
 
 export type PrecheckDecision = "pass" | "warn" | "manual_review" | "block";
 
+export type ExpenseStandardCheck = {
+  itemId: string;
+  expenseTypeId: string;
+  expenseTypeName: string;
+  amount: string;
+  standardId: string;
+  standardName: string;
+  maxAmount: string;
+  perUnit: "item" | "day" | "trip";
+  controlMode: "warn" | "block";
+  scopeType: "global" | "department";
+  scopeKey: string | null;
+  exceeded: boolean;
+  exceededAmount: string;
+};
+
 export type PrecheckResponse = {
   entityType: "reimbursement" | "purchase_request" | "travel_request";
   entityId: string;
@@ -29,6 +45,7 @@ export type PrecheckResponse = {
     controlMode: "warn" | "block" | "manual_review";
   } | null;
   budgetHint: Record<string, unknown> | null;
+  standardChecks: ExpenseStandardCheck[];
   warnings: Array<{ code: string; title: string; detail: string }>;
   blockingReasons: Array<{ code: string; title: string; detail: string }>;
   riskFlags: Array<{ code: string; level: "low" | "medium" | "high"; title: string; detail: string; willOpenOnSubmit: boolean }>;
diff --git a/client/src/api/reimbursements.ts b/client/src/api/reimbursements.ts
index 72cf4f2c..406b7ffb 100644
--- a/client/src/api/reimbursements.ts
+++ b/client/src/api/reimbursements.ts
@@ -1,5 +1,5 @@
 import { apiRequestData } from "./http";
-import type { PrecheckResponse, RiskFlag } from "./feeControl";
+import type { ExpenseStandardCheck, PrecheckResponse, RiskFlag } from "./feeControl";
 
 export type ReimbursementStatus =
   | "draft"
@@ -245,6 +245,7 @@ export type ReimbursementSubmitResponse = {
     exceededBudget: boolean;
   } | null;
   precheckDecision: "pass" | "warn" | "manual_review";
+  standardWarnings: ExpenseStandardCheck[];
   openedRiskFlagCount: number;
 };
 
diff --git a/client/src/api/workflow.ts b/client/src/api/workflow.ts
index 70a8ea8a..1f440d2c 100644
--- a/client/src/api/workflow.ts
+++ b/client/src/api/workflow.ts
@@ -1,4 +1,5 @@
 import { apiRequestData } from "./http";
+import type { ExpenseStandardCheck } from "./feeControl";
 
 export type WorkflowTaskSummary = {
   id: string;
@@ -57,6 +58,9 @@ export type WorkflowTaskDetail = {
     entityType: string;
     currentStatus: string;
     currentStepId: string;
+    contextData: {
+      standardViolations: ExpenseStandardCheck[];
+    };
     startedAt: string | null;
     completedAt: string | null;
   } | null;
diff --git a/client/src/pages/ExpenseStandardsPage.tsx b/client/src/pages/ExpenseStandardsPage.tsx
new file mode 100644
index 00000000..ad4b70bf
--- /dev/null
+++ b/client/src/pages/ExpenseStandardsPage.tsx
@@ -0,0 +1,521 @@
+import { useEffect, useMemo, useState } from "react";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { toast } from "sonner";
+import { fetchDepartments } from "../api/departments";
+import { mapApiErrorMessage } from "../api/errorMessages";
+import { fetchExpenseTypes } from "../api/expenseTypes";
+import {
+  createExpenseStandard,
+  deleteExpenseStandard,
+  fetchExpenseStandards,
+  updateExpenseStandard,
+  type ExpenseStandard,
+  type ExpenseStandardControlMode,
+  type ExpenseStandardPerUnit,
+  type ExpenseStandardScopeType,
+} from "../api/expenseStandards";
+import { isApiError } from "../api/types";
+import { PageHeader } from "../components/common/PageHeader";
+import { TableSkeleton } from "../components/common/TableSkeleton";
+import { ConfirmDialog } from "../components/common/ConfirmDialog";
+import { Button } from "../components/ui/button";
+import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "../components/ui/dialog";
+import { Input } from "../components/ui/input";
+import { Label } from "../components/ui/label";
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "../components/ui/table";
+
+type FilterEnabled = "all" | "enabled" | "disabled";
+type FormState = {
+  expenseTypeId: string;
+  name: string;
+  maxAmount: string;
+  perUnit: ExpenseStandardPerUnit;
+  controlMode: ExpenseStandardControlMode;
+  scopeType: ExpenseStandardScopeType;
+  scopeKey: string;
+  enabled: boolean;
+  note: string;
+};
+
+const PER_UNIT_OPTIONS: Array<{ value: ExpenseStandardPerUnit; label: string }> = [
+  { value: "item", label: "每项" },
+  { value: "day", label: "每天" },
+  { value: "trip", label: "每次" },
+];
+
+const CONTROL_MODE_OPTIONS: Array<{ value: ExpenseStandardControlMode; label: string }> = [
+  { value: "warn", label: "预警" },
+  { value: "block", label: "阻断" },
+];
+
+function emptyForm(expenseTypeId = ""): FormState {
+  return {
+    expenseTypeId,
+    name: "",
+    maxAmount: "",
+    perUnit: "item",
+    controlMode: "warn",
+    scopeType: "global",
+    scopeKey: "",
+    enabled: true,
+    note: "",
+  };
+}
+
+function toForm(item: ExpenseStandard): FormState {
+  return {
+    expenseTypeId: item.expenseTypeId,
+    name: item.name,
+    maxAmount: item.maxAmount,
+    perUnit: item.perUnit,
+    controlMode: item.controlMode,
+    scopeType: item.scopeType,
+    scopeKey: item.scopeKey ?? "",
+    enabled: item.enabled,
+    note: item.note ?? "",
+  };
+}
+
+function resolveErrorMessage(error: unknown) {
+  if (isApiError(error)) {
+    return `${error.code}: ${mapApiErrorMessage(error.code, error.details, error.message)}`;
+  }
+  if (error instanceof Error) {
+    return error.message;
+  }
+  return "请求失败，请稍后重试";
+}
+
+function toneClassForControlMode(mode: ExpenseStandardControlMode) {
+  return mode === "block"
+    ? "border-red-200 bg-red-50 text-red-700"
+    : "border-amber-200 bg-amber-50 text-amber-700";
+}
+
+export function ExpenseStandardsPage() {
+  const queryClient = useQueryClient();
+  const [error, setError] = useState("");
+  const [selectedExpenseTypeId, setSelectedExpenseTypeId] = useState("");
+  const [enabledFilter, setEnabledFilter] = useState<FilterEnabled>("all");
+  const [dialogOpen, setDialogOpen] = useState(false);
+  const [editingItem, setEditingItem] = useState<ExpenseStandard | null>(null);
+  const [form, setForm] = useState<FormState>(emptyForm());
+  const [confirmDelete, setConfirmDelete] = useState<ExpenseStandard | null>(null);
+
+  const expenseTypesQuery = useQuery({
+    queryKey: ["expense-types", "expense-standards"],
+    queryFn: () => fetchExpenseTypes(),
+  });
+
+  const departmentsQuery = useQuery({
+    queryKey: ["departments", "expense-standards", "active"],
+    queryFn: () => fetchDepartments({ includeArchived: false }),
+  });
+
+  const standardsQuery = useQuery({
+    queryKey: ["expense-standards", selectedExpenseTypeId, enabledFilter],
+    queryFn: () =>
+      fetchExpenseStandards({
+        expenseTypeId: selectedExpenseTypeId || undefined,
+        enabled:
+          enabledFilter === "all"
+            ? undefined
+            : enabledFilter === "enabled",
+      }),
+  });
+
+  useEffect(() => {
+    if (!dialogOpen) {
+      return;
+    }
+
+    if (editingItem) {
+      setForm(toForm(editingItem));
+      return;
+    }
+
+    const fallbackExpenseTypeId = selectedExpenseTypeId || expenseTypesQuery.data?.items?.[0]?.id || "";
+    setForm(emptyForm(fallbackExpenseTypeId));
+  }, [dialogOpen, editingItem, expenseTypesQuery.data?.items, selectedExpenseTypeId]);
+
+  const saveMutation = useMutation({
+    mutationFn: async () => {
+      const payload = {
+        expenseTypeId: form.expenseTypeId,
+        name: form.name.trim(),
+        maxAmount: form.maxAmount.trim(),
+        perUnit: form.perUnit,
+        controlMode: form.controlMode,
+        scopeType: form.scopeType,
+        scopeKey: form.scopeType === "department" ? form.scopeKey || null : null,
+        enabled: form.enabled,
+        note: form.note.trim() || null,
+      };
+
+      if (editingItem) {
+        return updateExpenseStandard(editingItem.id, payload);
+      }
+
+      return createExpenseStandard(payload);
+    },
+    onSuccess: async () => {
+      await queryClient.invalidateQueries({ queryKey: ["expense-standards"] });
+      setDialogOpen(false);
+      setEditingItem(null);
+      setError("");
+      toast.success(editingItem ? "标准已更新" : "标准已创建");
+    },
+    onError: (error) => {
+      const message = resolveErrorMessage(error);
+      setError(message);
+      toast.error(message);
+    },
+  });
+
+  const deleteMutation = useMutation({
+    mutationFn: (standardId: string) => deleteExpenseStandard(standardId),
+    onSuccess: async () => {
+      await queryClient.invalidateQueries({ queryKey: ["expense-standards"] });
+      setConfirmDelete(null);
+      setError("");
+      toast.success("标准已停用");
+    },
+    onError: (error) => {
+      const message = resolveErrorMessage(error);
+      setError(message);
+      toast.error(message);
+    },
+  });
+
+  const items = standardsQuery.data?.items ?? [];
+  const expenseTypeOptions = expenseTypesQuery.data?.items ?? [];
+  const departmentOptions = departmentsQuery.data?.items ?? [];
+  const canSubmit =
+    form.expenseTypeId.trim().length > 0 &&
+    form.name.trim().length > 0 &&
+    form.maxAmount.trim().length > 0 &&
+    (form.scopeType !== "department" || form.scopeKey.trim().length > 0);
+
+  const selectedExpenseTypeName = useMemo(() => {
+    return expenseTypeOptions.find((item) => item.id === selectedExpenseTypeId)?.name ?? "全部费用类型";
+  }, [expenseTypeOptions, selectedExpenseTypeId]);
+
+  return (
+    <div className="space-y-6">
+      <PageHeader
+        title="费用标准管理"
+        subtitle="维护费用类型的通用报销上限与 warn/block 管控模式。"
+        actions={
+          <Button
+            type="button"
+            onClick={() => {
+              setEditingItem(null);
+              setDialogOpen(true);
+            }}
+          >
+            新增标准
+          </Button>
+        }
+      />
+
+      {error ? (
+        <p className="rounded-lg border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-600">{error}</p>
+      ) : null}
+
+      <div className="card-std space-y-4 p-6">
+        <div className="grid gap-3 md:grid-cols-2 xl:grid-cols-4">
+          <div className="space-y-1">
+            <Label htmlFor="expense-standard-filter-type">费用类型</Label>
+            <select
+              id="expense-standard-filter-type"
+              className="select-std"
+              value={selectedExpenseTypeId}
+              onChange={(event) => setSelectedExpenseTypeId(event.target.value)}
+            >
+              <option value="">全部费用类型</option>
+              {expenseTypeOptions.map((item) => (
+                <option key={item.id} value={item.id}>
+                  {item.name}
+                </option>
+              ))}
+            </select>
+          </div>
+
+          <div className="space-y-1">
+            <Label htmlFor="expense-standard-filter-enabled">启用状态</Label>
+            <select
+              id="expense-standard-filter-enabled"
+              className="select-std"
+              value={enabledFilter}
+              onChange={(event) => setEnabledFilter(event.target.value as FilterEnabled)}
+            >
+              <option value="all">全部</option>
+              <option value="enabled">启用</option>
+              <option value="disabled">停用</option>
+            </select>
+          </div>
+        </div>
+
+        <div className="text-sm text-zinc-500">
+          当前筛选：{selectedExpenseTypeName} / {enabledFilter === "all" ? "全部状态" : enabledFilter === "enabled" ? "仅启用" : "仅停用"}
+        </div>
+
+        {standardsQuery.isLoading ? (
+          <TableSkeleton rows={5} />
+        ) : standardsQuery.isError ? (
+          <p className="text-sm text-red-600">费用标准加载失败，请刷新页面重试。</p>
+        ) : (
+          <div className="rounded-lg border border-zinc-200">
+            <Table>
+              <TableHeader>
+                <TableRow>
+                  <TableHead>费用类型</TableHead>
+                  <TableHead>标准名称</TableHead>
+                  <TableHead>上限金额</TableHead>
+                  <TableHead>计量单位</TableHead>
+                  <TableHead>管控模式</TableHead>
+                  <TableHead>适用范围</TableHead>
+                  <TableHead>启用状态</TableHead>
+                  <TableHead className="w-32">操作</TableHead>
+                </TableRow>
+              </TableHeader>
+              <TableBody>
+                {items.length ? (
+                  items.map((item) => (
+                    <TableRow key={item.id}>
+                      <TableCell>
+                        <div className="font-medium text-zinc-900">{item.expenseTypeName ?? item.expenseTypeId}</div>
+                      </TableCell>
+                      <TableCell>
+                        <div className="font-medium text-zinc-900">{item.name}</div>
+                        <div className="text-xs text-zinc-500">{item.note || "-"}</div>
+                      </TableCell>
+                      <TableCell>¥{item.maxAmount}</TableCell>
+                      <TableCell>{PER_UNIT_OPTIONS.find((option) => option.value === item.perUnit)?.label ?? item.perUnit}</TableCell>
+                      <TableCell>
+                        <span className={`inline-flex rounded-full border px-2 py-0.5 text-xs font-medium ${toneClassForControlMode(item.controlMode)}`}>
+                          {item.controlMode === "block" ? "阻断" : "预警"}
+                        </span>
+                      </TableCell>
+                      <TableCell>{item.scopeLabel}</TableCell>
+                      <TableCell>{item.enabled ? "启用" : "停用"}</TableCell>
+                      <TableCell>
+                        <div className="flex flex-wrap gap-2">
+                          <Button
+                            size="sm"
+                            type="button"
+                            variant="secondary"
+                            onClick={() => {
+                              setEditingItem(item);
+                              setDialogOpen(true);
+                            }}
+                          >
+                            编辑
+                          </Button>
+                          <Button
+                            size="sm"
+                            type="button"
+                            variant="secondary"
+                            onClick={() => setConfirmDelete(item)}
+                          >
+                            删除
+                          </Button>
+                        </div>
+                      </TableCell>
+                    </TableRow>
+                  ))
+                ) : (
+                  <TableRow>
+                    <TableCell colSpan={8} className="py-6 text-center text-sm text-zinc-500">
+                      当前筛选下暂无费用标准。
+                    </TableCell>
+                  </TableRow>
+                )}
+              </TableBody>
+            </Table>
+          </div>
+        )}
+      </div>
+
+      <Dialog
+        open={dialogOpen}
+        onOpenChange={(open) => {
+          setDialogOpen(open);
+          if (!open) {
+            setEditingItem(null);
+            setError("");
+          }
+        }}
+      >
+        <DialogContent className="max-w-2xl">
+          <DialogHeader>
+            <DialogTitle>{editingItem ? "编辑费用标准" : "新增费用标准"}</DialogTitle>
+            <DialogDescription>维护单条明细的金额上限，以及超标后是预警还是阻断提交。</DialogDescription>
+          </DialogHeader>
+
+          <div className="grid gap-4 md:grid-cols-2">
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-type">费用类型</Label>
+              <select
+                id="expense-standard-type"
+                className="select-std"
+                value={form.expenseTypeId}
+                onChange={(event) => setForm((current) => ({ ...current, expenseTypeId: event.target.value }))}
+                disabled={Boolean(editingItem)}
+              >
+                <option value="">请选择费用类型</option>
+                {expenseTypeOptions.map((item) => (
+                  <option key={item.id} value={item.id}>
+                    {item.name}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-name">标准名称</Label>
+              <Input
+                id="expense-standard-name"
+                value={form.name}
+                onChange={(event) => setForm((current) => ({ ...current, name: event.target.value }))}
+                placeholder="例如：日常交通费上限"
+              />
+            </div>
+
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-amount">上限金额</Label>
+              <Input
+                id="expense-standard-amount"
+                value={form.maxAmount}
+                onChange={(event) => setForm((current) => ({ ...current, maxAmount: event.target.value }))}
+                placeholder="例如 100.00"
+              />
+            </div>
+
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-per-unit">计量单位</Label>
+              <select
+                id="expense-standard-per-unit"
+                className="select-std"
+                value={form.perUnit}
+                onChange={(event) => setForm((current) => ({ ...current, perUnit: event.target.value as ExpenseStandardPerUnit }))}
+              >
+                {PER_UNIT_OPTIONS.map((item) => (
+                  <option key={item.value} value={item.value}>
+                    {item.label}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-control-mode">管控模式</Label>
+              <select
+                id="expense-standard-control-mode"
+                className="select-std"
+                value={form.controlMode}
+                onChange={(event) => setForm((current) => ({ ...current, controlMode: event.target.value as ExpenseStandardControlMode }))}
+              >
+                {CONTROL_MODE_OPTIONS.map((item) => (
+                  <option key={item.value} value={item.value}>
+                    {item.label}
+                  </option>
+                ))}
+              </select>
+            </div>
+
+            <div className="space-y-1">
+              <Label htmlFor="expense-standard-scope-type">适用范围</Label>
+              <select
+                id="expense-standard-scope-type"
+                className="select-std"
+                value={form.scopeType}
+                onChange={(event) =>
+                  setForm((current) => ({
+                    ...current,
+                    scopeType: event.target.value as ExpenseStandardScopeType,
+                    scopeKey: event.target.value === "department" ? current.scopeKey : "",
+                  }))
+                }
+              >
+                <option value="global">全局</option>
+                <option value="department">指定部门</option>
+              </select>
+            </div>
+
+            {form.scopeType === "department" ? (
+              <div className="space-y-1">
+                <Label htmlFor="expense-standard-department">部门</Label>
+                <select
+                  id="expense-standard-department"
+                  className="select-std"
+                  value={form.scopeKey}
+                  onChange={(event) => setForm((current) => ({ ...current, scopeKey: event.target.value }))}
+                >
+                  <option value="">请选择部门</option>
+                  {departmentOptions.map((item) => (
+                    <option key={item.id} value={item.id}>
+                      {item.name}
+                    </option>
+                  ))}
+                </select>
+              </div>
+            ) : null}
+
+            <div className="space-y-1 md:col-span-2">
+              <Label htmlFor="expense-standard-note">备注</Label>
+              <Input
+                id="expense-standard-note"
+                value={form.note}
+                onChange={(event) => setForm((current) => ({ ...current, note: event.target.value }))}
+                placeholder="可选填写规则说明"
+              />
+            </div>
+
+            <div className="space-y-1 md:col-span-2">
+              <Label htmlFor="expense-standard-enabled">启用状态</Label>
+              <select
+                id="expense-standard-enabled"
+                className="select-std max-w-xs"
+                value={form.enabled ? "true" : "false"}
+                onChange={(event) => setForm((current) => ({ ...current, enabled: event.target.value === "true" }))}
+              >
+                <option value="true">启用</option>
+                <option value="false">停用</option>
+              </select>
+            </div>
+          </div>
+
+          <DialogFooter>
+            <Button type="button" variant="secondary" onClick={() => setDialogOpen(false)}>
+              取消
+            </Button>
+            <Button type="button" disabled={!canSubmit || saveMutation.isPending} onClick={() => saveMutation.mutate()}>
+              {saveMutation.isPending ? "保存中..." : editingItem ? "保存修改" : "创建标准"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      <ConfirmDialog
+        open={Boolean(confirmDelete)}
+        onOpenChange={(open) => {
+          if (!open) {
+            setConfirmDelete(null);
+          }
+        }}
+        title="确认删除该费用标准？"
+        description={confirmDelete ? `删除后会将“${confirmDelete.name}”停用，不会物理移除历史记录。` : undefined}
+        confirmLabel="删除"
+        variant="destructive"
+        onConfirm={async () => {
+          if (confirmDelete) {
+            await deleteMutation.mutateAsync(confirmDelete.id);
+          }
+        }}
+      />
+    </div>
+  );
+}
+
+export default ExpenseStandardsPage;
diff --git a/client/src/pages/ReimbursementDetailPage.tsx b/client/src/pages/ReimbursementDetailPage.tsx
index 81be89d3..a68805e3 100644
--- a/client/src/pages/ReimbursementDetailPage.tsx
+++ b/client/src/pages/ReimbursementDetailPage.tsx
@@ -4,6 +4,7 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { isApiError } from "../api/types";
 import { mapApiErrorMessage } from "../api/errorMessages";
 import { fetchExpenseTypes } from "../api/expenseTypes";
+import type { ExpenseStandardCheck, PrecheckResponse } from "../api/feeControl";
 import { exportReimbursementJournal, previewReimbursementJournal } from "../api/integrations";
 import { fetchProjects } from "../api/projects";
 import {
@@ -92,6 +93,7 @@ export function ReimbursementDetailPage() {
   const [itemError, setItemError] = useState("");
   const [confirmDeleteItemId, setConfirmDeleteItemId] = useState("");
   const [isErpPreviewOpen, setIsErpPreviewOpen] = useState(false);
+  const [submitConfirmPrecheck, setSubmitConfirmPrecheck] = useState<PrecheckResponse | null>(null);
   const [editorInitialValues, setEditorInitialValues] = useState<ItemEditorInitialValues>({
     expenseTypeId: "",
     expenseDate: "",
@@ -116,6 +118,13 @@ export function ReimbursementDetailPage() {
   });
 
   const canManageIntegration = hasPermission(permissions, "integration.manage");
+  const canSubmitExpense = hasPermission(permissions, "expense.submit");
+
+  const reimbursementPrecheckQuery = useQuery({
+    enabled: Boolean(reimbursementId) && canSubmitExpense && ["draft", "rejected"].includes(detailQuery.data?.status ?? ""),
+    queryKey: ["reimbursements", reimbursementId, "precheck"],
+    queryFn: () => precheckReimbursement(reimbursementId),
+  });
 
   const erpPreviewQuery = useQuery({
     enabled: Boolean(reimbursementId) && canManageIntegration && detailQuery.data?.status === "paid",
@@ -147,8 +156,12 @@ export function ReimbursementDetailPage() {
       await Promise.all([
         queryClient.invalidateQueries({ queryKey: ["reimbursements"] }),
         queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId] }),
+        queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId, "precheck"] }),
       ]);
       setActionError("");
+      if (params.action === "submit") {
+        setSubmitConfirmPrecheck(null);
+      }
       const actionMessages: Record<string, string> = { submit: "已提交", withdraw: "已撤回", pay: "付款成功" };
       toast.success(actionMessages[params.action] ?? "操作成功");
     },
@@ -197,6 +210,7 @@ export function ReimbursementDetailPage() {
       await Promise.all([
         queryClient.invalidateQueries({ queryKey: ["reimbursements"] }),
         queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId] }),
+        queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId, "precheck"] }),
       ]);
       setItemEditor(null);
       setItemError("");
@@ -233,6 +247,7 @@ export function ReimbursementDetailPage() {
       await Promise.all([
         queryClient.invalidateQueries({ queryKey: ["reimbursements"] }),
         queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId] }),
+        queryClient.invalidateQueries({ queryKey: ["reimbursements", reimbursementId, "precheck"] }),
       ]);
       setItemError("");
       toast.success("明细已删除");
@@ -349,6 +364,9 @@ export function ReimbursementDetailPage() {
   const budgetHint = detail.budgetHint;
   const canPay = hasPermission(permissions, "expense.finance.pay");
   const canEditItems = ["draft", "rejected"].includes(detail.status);
+  const precheckStandardChecks = reimbursementPrecheckQuery.data?.standardChecks ?? [];
+  const blockStandardChecks = precheckStandardChecks.filter((item) => item.exceeded && item.controlMode === "block");
+  const warnStandardChecks = precheckStandardChecks.filter((item) => item.exceeded && item.controlMode === "warn");
 
   const expenseTypes = expenseTypesQuery.data?.items ?? [];
 
@@ -406,7 +424,8 @@ export function ReimbursementDetailPage() {
         return;
       }
 
-      if ((precheck.decision === "warn" || precheck.decision === "manual_review") && !window.confirm(message)) {
+      if (precheck.decision === "warn" || precheck.decision === "manual_review") {
+        setSubmitConfirmPrecheck(precheck);
         return;
       }
 
@@ -546,6 +565,10 @@ export function ReimbursementDetailPage() {
           </p>
         ) : null}
 
+        {reimbursementPrecheckQuery.isLoading && canEditItems ? (
+          <p className="text-sm text-zinc-500">正在刷新费用标准校验结果...</p>
+        ) : null}
+
         <div className="rounded-lg border border-zinc-200">
           <Table data-testid="reimbursement-items-table">
             <TableHeader>
@@ -560,7 +583,17 @@ export function ReimbursementDetailPage() {
             <TableBody>
               {detail.items.length ? (
                 detail.items.map((item) => (
-                  <TableRow data-testid="reimbursement-item-row" key={item.id}>
+                  <TableRow
+                    data-testid="reimbursement-item-row"
+                    key={item.id}
+                    className={
+                      blockStandardChecks.some((check) => check.itemId === item.id)
+                        ? "bg-red-50/70"
+                        : warnStandardChecks.some((check) => check.itemId === item.id)
+                          ? "bg-amber-50/70"
+                          : ""
+                    }
+                  >
                     <TableCell>
                       <div className="font-medium text-zinc-900">
                         {item.expenseType?.name ?? item.expenseTypeId}
@@ -568,8 +601,33 @@ export function ReimbursementDetailPage() {
                       <div className="text-xs text-zinc-500">{item.expenseType?.code ?? "-"}</div>
                     </TableCell>
                     <TableCell>{item.expenseDate ?? "-"}</TableCell>
-                    <TableCell>{item.amount}</TableCell>
-                    <TableCell>{item.description ?? "-"}</TableCell>
+                    <TableCell>
+                      <div>{item.amount}</div>
+                      {precheckStandardChecks
+                        .filter((check) => check.itemId === item.id)
+                        .map((check) => (
+                          <div
+                            key={check.standardId}
+                            className={`mt-1 text-xs ${check.exceeded ? (check.controlMode === "block" ? "text-red-600" : "text-amber-600") : "text-zinc-500"}`}
+                          >
+                            标准 ¥{check.maxAmount}/{check.perUnit}
+                            {check.exceeded ? `，超出 ¥${check.exceededAmount}` : ""}
+                          </div>
+                        ))}
+                    </TableCell>
+                    <TableCell>
+                      <div>{item.description ?? "-"}</div>
+                      {precheckStandardChecks
+                        .filter((check) => check.itemId === item.id && check.exceeded)
+                        .map((check) => (
+                          <div
+                            key={`${check.standardId}-warning`}
+                            className={`mt-1 text-xs ${check.controlMode === "block" ? "text-red-600" : "text-amber-600"}`}
+                          >
+                            {check.standardName}：当前金额超出费用标准。
+                          </div>
+                        ))}
+                    </TableCell>
                     <TableCell>
                       {canEditItems ? (
                         <div className="flex flex-wrap gap-2">
@@ -614,6 +672,7 @@ export function ReimbursementDetailPage() {
             expenseTypes={expenseTypes}
             expenseTypesLoading={expenseTypesQuery.isLoading}
             expenseTypesError={expenseTypesQuery.isError}
+            departmentId={detail.departmentId}
             initialValues={editorInitialValues}
             onSave={handleItemSave}
             onCancel={handleItemCancel}
@@ -785,6 +844,8 @@ export function ReimbursementDetailPage() {
             status={detail.status}
             canPay={canPay}
             actionError={actionError}
+            submitDisabled={blockStandardChecks.length > 0}
+            submitHint={blockStandardChecks.length > 0 ? "请修改超标明细后提交" : ""}
             isPending={mutation.isPending}
             onSubmit={() => void handleSubmitAction()}
             onWithdraw={(comment) => mutation.mutate({ action: "withdraw", comment })}
@@ -828,6 +889,60 @@ export function ReimbursementDetailPage() {
         </DialogContent>
       </Dialog>
 
+      <Dialog
+        open={Boolean(submitConfirmPrecheck)}
+        onOpenChange={(open) => {
+          if (!open) {
+            setSubmitConfirmPrecheck(null);
+          }
+        }}
+      >
+        <DialogContent className="max-h-[85vh] max-w-2xl overflow-y-auto">
+          <DialogHeader>
+            <DialogTitle>确认提交报销单？</DialogTitle>
+            <DialogDescription>以下校验项不会阻止提交，但会作为预警或复核信息进入审批流程。</DialogDescription>
+          </DialogHeader>
+
+          {submitConfirmPrecheck ? (
+            <div className="space-y-4 text-sm">
+              <div className="rounded-lg border border-zinc-200 bg-zinc-50 p-4 whitespace-pre-wrap">
+                {buildPrecheckDialogMessage(submitConfirmPrecheck)}
+              </div>
+
+              {submitConfirmPrecheck.standardChecks.some((item) => item.exceeded && item.controlMode === "warn") ? (
+                <div className="space-y-2">
+                  <h4 className="font-medium text-zinc-900">超出费用标准的明细</h4>
+                  {submitConfirmPrecheck.standardChecks
+                    .filter((item) => item.exceeded && item.controlMode === "warn")
+                    .map((item: ExpenseStandardCheck) => (
+                      <div key={`${item.itemId}-${item.standardId}`} className="rounded-lg border border-amber-200 bg-amber-50 px-3 py-2 text-amber-700">
+                        <div className="font-medium">{item.expenseTypeName}</div>
+                        <div>
+                          当前 ¥{item.amount} / 标准 ¥{item.maxAmount}/{item.perUnit} / 超出 ¥{item.exceededAmount}
+                        </div>
+                        <div>{item.standardName}</div>
+                      </div>
+                    ))}
+                </div>
+              ) : null}
+
+              <div className="flex justify-end gap-2">
+                <Button type="button" variant="secondary" onClick={() => setSubmitConfirmPrecheck(null)}>
+                  取消
+                </Button>
+                <Button
+                  type="button"
+                  disabled={mutation.isPending}
+                  onClick={() => mutation.mutate({ action: "submit" })}
+                >
+                  {mutation.isPending ? "提交中..." : "确认提交"}
+                </Button>
+              </div>
+            </div>
+          ) : null}
+        </DialogContent>
+      </Dialog>
+
       <ConfirmDialog
         open={Boolean(confirmDeleteItemId)}
         onOpenChange={(open) => { if (!open) setConfirmDeleteItemId(""); }}
diff --git a/client/src/pages/SystemSettingsPage.tsx b/client/src/pages/SystemSettingsPage.tsx
index d36138c5..80d4038f 100644
--- a/client/src/pages/SystemSettingsPage.tsx
+++ b/client/src/pages/SystemSettingsPage.tsx
@@ -5,6 +5,7 @@ const ITEMS = [
   { to: "/system/workspace", title: "工作区设置", description: "调整小团队模式的导航与模块显隐。" },
   { to: "/people", title: "人员管理", description: "处理入职、转正、调岗、离职与档案。" },
   { to: "/system/approval-rules", title: "审批规则", description: "维护仍在使用的简单审批链与规则。" },
+  { to: "/system/expense-standards", title: "费用标准", description: "维护报销费用类型上限与 warn/block 管控模式。" },
   { to: "/system/master-data", title: "主数据", description: "维护费用、法体、成本中心等主数据。" },
   { to: "/system/notification-channels", title: "通知渠道", description: "继续保留 IM/邮件等补充通知渠道。" },
   { to: "/system/integrations/erp", title: "外部系统桥接", description: "查看财务与外部系统桥接能力及出入口。" },
diff --git a/client/src/pages/WorkflowTaskDetailPage.tsx b/client/src/pages/WorkflowTaskDetailPage.tsx
index 11c0ddd8..ff3afe97 100644
--- a/client/src/pages/WorkflowTaskDetailPage.tsx
+++ b/client/src/pages/WorkflowTaskDetailPage.tsx
@@ -289,6 +289,31 @@ export function WorkflowTaskDetailPage() {
             </div>
           </SectionPanel>
 
+          {detail.workflowInstance?.entityType === "reimbursement" &&
+          detail.workflowInstance.contextData.standardViolations.length ? (
+            <SectionPanel title="费用标准提示" description="以下明细在提交时已被标记为超出费用标准，供审批判断时参考。">
+              <div className="space-y-2">
+                {detail.workflowInstance.contextData.standardViolations.map((item) => (
+                  <div
+                    key={`${item.itemId}-${item.standardId}`}
+                    className={
+                      item.controlMode === "block"
+                        ? "rounded-lg border border-red-200 bg-red-50 px-3 py-2 text-sm text-red-700"
+                        : "rounded-lg border border-amber-200 bg-amber-50 px-3 py-2 text-sm text-amber-700"
+                    }
+                  >
+                    <div className="font-medium text-zinc-900">{item.expenseTypeName}</div>
+                    <div>
+                      当前 ¥{item.amount} / 标准 ¥{item.maxAmount}/{item.perUnit}
+                    </div>
+                    <div>超出 ¥{item.exceededAmount} · {item.standardName}</div>
+                    <div>管控模式：{item.controlMode === "block" ? "阻断" : "预警"}</div>
+                  </div>
+                ))}
+              </div>
+            </SectionPanel>
+          ) : null}
+
           <SectionPanel title="审批动作" description="把通过、驳回、退回和转审统一收口在同一块操作区。">
             <div className="space-y-4">
               {actionError ? (
diff --git a/client/src/pages/reimbursement-detail/ReimbursementActions.tsx b/client/src/pages/reimbursement-detail/ReimbursementActions.tsx
index aac23040..4a59a49c 100644
--- a/client/src/pages/reimbursement-detail/ReimbursementActions.tsx
+++ b/client/src/pages/reimbursement-detail/ReimbursementActions.tsx
@@ -16,6 +16,8 @@ export interface ReimbursementActionsProps {
   status: ReimbursementStatus;
   canPay: boolean;
   actionError: string;
+  submitDisabled?: boolean;
+  submitHint?: string;
   isPending: boolean;
   onSubmit: () => void;
   onWithdraw: (comment: string) => void;
@@ -26,6 +28,8 @@ export function ReimbursementActions({
   status,
   canPay,
   actionError,
+  submitDisabled = false,
+  submitHint = "",
   isPending,
   onSubmit,
   onWithdraw,
@@ -52,13 +56,14 @@ export function ReimbursementActions({
       <div className="flex flex-wrap gap-2">
         <Button
           data-testid="reimbursement-submit"
-          disabled={isPending || status !== "draft"}
+          disabled={isPending || !["draft", "rejected"].includes(status) || submitDisabled}
           onClick={onSubmit}
           type="button"
         >
           提交报销
         </Button>
       </div>
+      {submitHint ? <p className="text-sm text-zinc-500">{submitHint}</p> : null}
 
       <div className="space-y-2 rounded-lg border border-zinc-200 p-4">
         <p className="text-sm font-medium text-zinc-800">撤回报销</p>
diff --git a/client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx b/client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx
index 3dfe3a3f..bcc6ba2c 100644
--- a/client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx
+++ b/client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx
@@ -1,5 +1,7 @@
-import { useEffect, useState } from "react";
+import { useEffect, useMemo, useState } from "react";
+import { useQuery } from "@tanstack/react-query";
 import type { ExpenseType } from "../../api/expenseTypes";
+import { fetchExpenseStandards } from "../../api/expenseStandards";
 import { Button } from "../../components/ui/button";
 import { Input } from "../../components/ui/input";
 import { Textarea } from "../../components/ui/textarea";
@@ -25,6 +27,7 @@ export interface ReimbursementItemEditorProps {
   expenseTypes: ExpenseType[];
   expenseTypesLoading: boolean;
   expenseTypesError: boolean;
+  departmentId: string;
   initialValues: ItemEditorInitialValues;
   onSave: (data: ItemEditorSaveData) => void;
   onCancel: () => void;
@@ -36,6 +39,7 @@ export function ReimbursementItemEditor({
   expenseTypes,
   expenseTypesLoading,
   expenseTypesError,
+  departmentId,
   initialValues,
   onSave,
   onCancel,
@@ -54,6 +58,30 @@ export function ReimbursementItemEditor({
     setDescription(initialValues.description);
   }, [initialValues.expenseTypeId, initialValues.expenseDate, initialValues.amount, initialValues.description]);
 
+  const standardsQuery = useQuery({
+    enabled: Boolean(expenseTypeId),
+    queryKey: ["expense-standards", "editor", expenseTypeId],
+    queryFn: () =>
+      fetchExpenseStandards({
+        expenseTypeId,
+        enabled: true,
+      }),
+  });
+
+  const activeStandard = useMemo(() => {
+    const items = standardsQuery.data?.items ?? [];
+    return (
+      items.find((item) => item.scopeType === "department" && item.scopeKey === departmentId) ??
+      items.find((item) => item.scopeType === "global") ??
+      null
+    );
+  }, [departmentId, standardsQuery.data?.items]);
+
+  const numericAmount = Number(amount || 0);
+  const numericMaxAmount = Number(activeStandard?.maxAmount ?? 0);
+  const isExceeded = Boolean(activeStandard) && Number.isFinite(numericAmount) && numericAmount > numericMaxAmount;
+  const exceededAmount = isExceeded ? (numericAmount - numericMaxAmount).toFixed(2) : "0.00";
+
   const handleSave = () => {
     onSave({ expenseTypeId, expenseDate, amount, description });
   };
@@ -120,6 +148,19 @@ export function ReimbursementItemEditor({
             placeholder="例如 123.45"
             value={amount}
           />
+          {standardsQuery.isLoading ? (
+            <p className="text-xs text-zinc-500">正在加载费用标准...</p>
+          ) : null}
+          {activeStandard ? (
+            <p className="text-xs text-zinc-500">
+              该费用类型上限 ¥{activeStandard.maxAmount}/{activeStandard.perUnit}
+            </p>
+          ) : null}
+          {isExceeded ? (
+            <p className={`text-xs ${activeStandard?.controlMode === "block" ? "text-red-600" : "text-amber-600"}`}>
+              超出费用标准 ¥{activeStandard?.maxAmount}，超出 ¥{exceededAmount}
+            </p>
+          ) : null}
         </div>
 
         <div className="space-y-1 md:col-span-4">
diff --git a/client/src/router/index.tsx b/client/src/router/index.tsx
index 332473b0..168bb9bc 100644
--- a/client/src/router/index.tsx
+++ b/client/src/router/index.tsx
@@ -21,6 +21,7 @@ import {
   DelegationsPage,
   DepartmentsPage,
   ErpIntegrationPage,
+  ExpenseStandardsPage,
   FeatureFlagsPage,
   InventoryChecksPage,
   InvoicePoolPage,
@@ -441,6 +442,15 @@ export function AppRouter() {
           }
         />
 
+        <Route
+          path="system/expense-standards"
+          element={
+            <RequirePermission anyOf={["system.settings"]}>
+              {withRouteFallback(<ExpenseStandardsPage />)}
+            </RequirePermission>
+          }
+        />
+
         <Route
           path="system/feature-flags"
           element={
diff --git a/client/src/router/lazy/ExpenseStandardsPage.ts b/client/src/router/lazy/ExpenseStandardsPage.ts
new file mode 100644
index 00000000..461641f5
--- /dev/null
+++ b/client/src/router/lazy/ExpenseStandardsPage.ts
@@ -0,0 +1 @@
+export { ExpenseStandardsPage as default } from "../../pages/ExpenseStandardsPage";
diff --git a/client/src/router/lazy/index.ts b/client/src/router/lazy/index.ts
index f7bf9e5b..9a6a6e73 100644
--- a/client/src/router/lazy/index.ts
+++ b/client/src/router/lazy/index.ts
@@ -8,6 +8,7 @@ export const CutoverConsolePage = lazy(() => import("./CutoverConsolePage"));
 export const DelegationsPage = lazy(() => import("./DelegationsPage"));
 export const DepartmentsPage = lazy(() => import("./DepartmentsPage"));
 export const ErpIntegrationPage = lazy(() => import("./ErpIntegrationPage"));
+export const ExpenseStandardsPage = lazy(() => import("./ExpenseStandardsPage"));
 export const FeatureFlagsPage = lazy(() => import("./FeatureFlagsPage"));
 export const InventoryChecksPage = lazy(() => import("./InventoryChecksPage"));
 export const InvoicePoolPage = lazy(() => import("./InvoicePoolPage"));
diff --git a/issues/2026-04-08_r56-expense-standards.csv b/issues/2026-04-08_r56-expense-standards.csv
new file mode 100644
index 00000000..720470fb
--- /dev/null
+++ b/issues/2026-04-08_r56-expense-standards.csv
@@ -0,0 +1,7 @@
+ID,Title,Description,Acceptance,Test_Method,Tools,Dev_Status,Review1_Status,Regression_Status,Files,Dependencies,Notes
+"A1","R56 执行合同建档与范围冻结","创建并校验 R56 费用标准管控执行合同 CSV，冻结范围仅包含 ExpenseStandard 模型与 CRUD、报销提交与 precheck 标准校验、费用标准管理页、报销与审批侧超标提示；明确本轮允许 1 个 Prisma 迁移，不改报销状态机与 approve/reject 主流程。","issues/2026-04-08_r56-expense-standards.csv 列完整、Dependencies 为 JSON 数组字符串、Test_Method 可复现；范围仅覆盖 R56 A1-A6，不混入城市/职级维度、工作流主流程改造、历史标准版本回放或导出增强。","命令：python3 /home/shunli/.codex/skills/plan/scripts/validate_issues_csv.py issues/2026-04-08_r56-expense-standards.csv。检查：1) 对照 AGENTS.md 与 issues/README.md 确认 12 列完整；2) A2-A6 依赖链符合 backend/frontend→reviewer→qa 收口；3) 方案明确 global/department 严格唯一、DELETE 仅软删除、费用标准校验不受 budget_precheck_v1 开关影响。","manual","DONE","DONE","DONE","issues/2026-04-08_r56-expense-standards.csv","[]","回滚路径：删除本次 CSV 不影响业务。2026-04-08：Issue CSV 已创建并通过 validate_issues_csv.py 校验，范围与依赖已冻结。"
+"A2","ExpenseStandard 模型、迁移与 CRUD 路由","新增 ExpenseStandard Prisma 模型、严格唯一索引迁移、expense standards CRUD 路由与审计日志，支撑费用类型 × 全局/部门标准维护。","schema.prisma 含 ExpenseStandard 与 ExpenseType.standards relation；迁移目录为 20260408090000_r56_expense_standards，含 global/department 严格唯一索引；/api/expense-standards 支持列表、创建、更新、软删除，权限统一 system.settings，冲突返回 409 VALID_001，并记录 EXPENSE_STANDARD_CREATED/UPDATED/DELETED 审计。","命令：export PATH=/home/shunli/.nvm/versions/node/v22.20.0/bin:$PATH && cd server && npx prisma validate && npx prisma migrate status && node --check src/routes/expenseStandards.js && npm test -- tests/unit/routes/expenseStandards.test.js。业务：1) 可创建 global 与 department 标准；2) global 重复或同部门重复被拒绝；3) 删除仅将 enabled 置为 false；4) 非 system.settings 用户访问返回 403。","manual","DONE","DONE","DONE","server/prisma/schema.prisma|server/prisma/migrations/20260408090000_r56_expense_standards/*|server/src/routes/expenseStandards.js|server/src/app.js|server/tests/unit/routes/expenseStandards.test.js","[""A1""]","回滚路径：回退路由与注册，并在回滚迁移中 drop expense_standards 表及部分唯一索引。2026-04-08：ExpenseStandard 模型、迁移、CRUD 路由与 10 条路由单测已完成，临时校验库 migrate status up to date。"
+"A3","报销费用标准校验接入 precheck 与 submit","在 feeControl 中新增费用标准匹配与超标判断，并接入报销 precheck、submit 与工作流 context_data.standardViolations。","checkExpenseStandards 仅对报销生效，按 department > global 匹配启用标准，并返回 standardChecks；reimbursement precheck 与 fee-control precheck 在 reimbursement 时附带 standardChecks；submit 在 block 超标时返回 400 + standardViolations，warn 超标继续提交并返回 standardWarnings，同时将 exceeded 项写入 workflow_instance.context_data.standardViolations。","命令：export PATH=/home/shunli/.nvm/versions/node/v22.20.0/bin:$PATH && cd server && node --check src/routes/reimbursements.js && node --check src/services/feeControl.js && npm test -- tests/unit/services/expenseStandards.check.test.js tests/unit/routes/reimbursements.expense-standards.test.js tests/unit/routes/workflow.task-detail.test.js。业务：1) department 标准覆盖 global；2) warn 超标仅预警不阻断；3) block 超标阻断提交；4) 无标准的明细不受影响；5) warn 提交成功后 workflow task detail 可读到 standardViolations。","manual","DONE","DONE","DONE","server/src/services/feeControl.js|server/src/routes/reimbursements.js|server/src/routes/feeControl.js|server/src/routes/workflow.js|server/tests/unit/services/expenseStandards.check.test.js|server/tests/unit/routes/reimbursements.expense-standards.test.js|server/tests/unit/routes/workflow.task-detail.test.js","[""A1"",""A2""]","回滚路径：删除费用标准检查 helper 与 submit/precheck 增强，保留现有预算 precheck 行为。2026-04-08：费用标准检查已接入 reimbursement precheck/submit/workflow detail，6 条服务单测与 4 条路由级回归通过。"
+"A4","费用标准管理页、API、路由与系统设置入口","新增费用标准前端 API、管理页面、系统设置入口与受保护路由。","/system/expense-standards 仅 system.settings 用户可访问；页面包含费用类型/启用状态筛选、标准表格、新增/编辑弹窗与软删除确认；前端通过独立 expenseStandards API 调用后端 CRUD，并在 SystemSettingsPage 显示入口卡片。","命令：export PATH=/home/shunli/.nvm/versions/node/v22.20.0/bin:$PATH && cd client && npm run typecheck && npm run build。业务：1) 可在系统设置进入费用标准页；2) 可新增、编辑、软删除标准；3) department 范围可选择部门；4) 列表中 warn/block badge 与适用范围文案正确。","manual","DONE","DONE","DONE","client/src/api/expenseStandards.ts|client/src/pages/ExpenseStandardsPage.tsx|client/src/pages/SystemSettingsPage.tsx|client/src/router/index.tsx|client/src/router/lazy/ExpenseStandardsPage.ts|client/src/router/lazy/index.ts","[""A1"",""A2""]","回滚路径：移除新页面、API、路由和系统设置入口卡片。2026-04-08：费用标准管理页、系统设置入口与路由懒加载已完成，client typecheck/build 通过。"
+"A5","报销明细与审批侧超标提示","增强报销明细编辑器、报销详情页和审批任务详情页，展示费用标准提示、超标样式与提交流程确认。","ReimbursementItemEditor 会基于费用类型与部门显示当前有效标准和 warn/block 超标提示；ReimbursementDetailPage 在 draft/rejected 阶段展示 precheck standardChecks、对超标明细加橙/红边框、block 时禁用提交、warn 时展示确认弹窗；WorkflowTaskDetailPage 对 reimbursement 任务展示 standardViolations 高亮信息。","命令：export PATH=/home/shunli/.nvm/versions/node/v22.20.0/bin:$PATH && cd client && npm run typecheck && npm run build。业务：1) 编辑明细时可见标准上限与实时超标提示；2) block 超标时提交按钮禁用且提示修改；3) warn 超标时提交前需确认；4) 审批人可在任务详情中看到超标明细、标准与超出金额。","manual","DONE","DONE","DONE","client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx|client/src/pages/reimbursement-detail/ReimbursementActions.tsx|client/src/pages/ReimbursementDetailPage.tsx|client/src/pages/WorkflowTaskDetailPage.tsx|client/src/api/reimbursements.ts|client/src/api/feeControl.ts|client/src/api/workflow.ts","[""A1"",""A2"",""A3"",""A4""]","回滚路径：移除前端 standardChecks/standardViolations 展示与提交确认逻辑。2026-04-08：编辑器实时提示、详情页阻断/确认交互与审批任务详情展示已完成。"
+"A6","Reviewer、QA、CSV 回填与提交收口","执行 reviewer 自检、post-check、远端迁移核验项准备与 CSV 回填，完成提交收口。","review 结论覆盖严格唯一索引、department 优先级、block/warn 行为、context_data.standardViolations 写入、不依赖 budget_precheck_v1、无标准时跳过与迁移回滚；post-check 全部通过；issues/2026-04-08_r56-expense-standards.csv 的 Dev_Status/Review1_Status/Regression_Status 依据实测结果回填；完成 git commit。","命令：export PATH=/home/shunli/.nvm/versions/node/v22.20.0/bin:$PATH && cd server && npx prisma validate && npx prisma migrate status && node --check src/routes/reimbursements.js && node --check src/routes/expenseStandards.js && node --check src/services/feeControl.js && npm test -- tests/unit/routes/expenseStandards.test.js tests/unit/services/expenseStandards.check.test.js tests/unit/routes/reimbursements.expense-standards.test.js tests/unit/routes/workflow.task-detail.test.js && cd ../client && npm run typecheck && npm run build。部署准备：记录远端需执行 docker compose -f deploy/trialrun/docker-compose.yml --env-file deploy/trialrun/.env exec -T server npx prisma migrate status。业务：1) warn/block 标准分别完成提交流程验证；2) 审批任务详情可见超标信息；3) CSV 状态已回填。","manual","DONE","DONE","DONE","issues/2026-04-08_r56-expense-standards.csv|server/prisma/schema.prisma|server/prisma/migrations/20260408090000_r56_expense_standards/*|server/src/routes/expenseStandards.js|server/src/services/feeControl.js|server/src/routes/reimbursements.js|server/src/routes/workflow.js|server/tests/unit/routes/expenseStandards.test.js|server/tests/unit/services/expenseStandards.check.test.js|server/tests/unit/routes/reimbursements.expense-standards.test.js|server/tests/unit/routes/workflow.task-detail.test.js|client/src/api/expenseStandards.ts|client/src/pages/ExpenseStandardsPage.tsx|client/src/pages/ReimbursementDetailPage.tsx|client/src/pages/reimbursement-detail/ReimbursementItemEditor.tsx|client/src/pages/reimbursement-detail/ReimbursementActions.tsx|client/src/pages/WorkflowTaskDetailPage.tsx|client/src/pages/SystemSettingsPage.tsx|client/src/router/index.tsx|client/src/router/lazy/ExpenseStandardsPage.ts|client/src/router/lazy/index.ts|client/src/api/reimbursements.ts|client/src/api/feeControl.ts|client/src/api/workflow.ts","[""A2"",""A3"",""A4"",""A5""]","回滚路径：若 QA 发现关键回归，暂停提交并回退对应代码与迁移。2026-04-08：reviewer 自检确认严格唯一由部分唯一索引保证、department 优先于 global、block 以 400 阻断提交、warn 仅附加 standardWarnings 与 workflow context_data.standardViolations、预算开关关闭时标准校验仍生效、无标准明细自动跳过；post-check 已在临时校验库 hyb_oa_r56_check 上通过，新增 precheck/submit/task detail 路由回归 4 条通过。"
diff --git a/server/prisma/migrations/20260408090000_r56_expense_standards/migration.sql b/server/prisma/migrations/20260408090000_r56_expense_standards/migration.sql
new file mode 100644
index 00000000..db20432d
--- /dev/null
+++ b/server/prisma/migrations/20260408090000_r56_expense_standards/migration.sql
@@ -0,0 +1,34 @@
+CREATE TABLE "expense_standards" (
+    "id" UUID NOT NULL,
+    "expense_type_id" UUID NOT NULL,
+    "name" VARCHAR(100) NOT NULL,
+    "max_amount" DECIMAL(14,2) NOT NULL,
+    "per_unit" VARCHAR(20) NOT NULL DEFAULT 'item',
+    "control_mode" VARCHAR(16) NOT NULL DEFAULT 'warn',
+    "scope_type" VARCHAR(32) NOT NULL DEFAULT 'global',
+    "scope_key" UUID,
+    "enabled" BOOLEAN NOT NULL DEFAULT true,
+    "note" TEXT,
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "created_by" UUID,
+    "updated_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updated_by" UUID,
+
+    CONSTRAINT "expense_standards_pkey" PRIMARY KEY ("id")
+);
+
+ALTER TABLE "expense_standards"
+ADD CONSTRAINT "expense_standards_expense_type_id_fkey"
+FOREIGN KEY ("expense_type_id") REFERENCES "expense_types"("id")
+ON DELETE RESTRICT ON UPDATE CASCADE;
+
+CREATE INDEX "idx_expense_standards_enabled_type"
+ON "expense_standards"("enabled", "expense_type_id");
+
+CREATE UNIQUE INDEX "expense_standards_type_scope_global_ux"
+ON "expense_standards"("expense_type_id", "scope_type")
+WHERE "scope_key" IS NULL;
+
+CREATE UNIQUE INDEX "expense_standards_type_scope_scoped_ux"
+ON "expense_standards"("expense_type_id", "scope_type", "scope_key")
+WHERE "scope_key" IS NOT NULL;
diff --git a/server/prisma/schema.prisma b/server/prisma/schema.prisma
index 0d41ce33..83dfe80b 100644
--- a/server/prisma/schema.prisma
+++ b/server/prisma/schema.prisma
@@ -812,12 +812,36 @@ model ExpenseType {
   updated_at DateTime @default(now()) @updatedAt
   updated_by String?  @db.Uuid
 
+  standards           ExpenseStandard[]
   reimbursement_items ReimbursementItem[]
 
   @@index([enabled, sort_order])
   @@map("expense_types")
 }
 
+model ExpenseStandard {
+  id              String   @id @default(uuid()) @db.Uuid
+  expense_type_id String   @db.Uuid
+  name            String   @db.VarChar(100)
+  max_amount      Decimal  @db.Decimal(14, 2)
+  per_unit        String   @default("item") @db.VarChar(20)
+  control_mode    String   @default("warn") @db.VarChar(16)
+  scope_type      String   @default("global") @db.VarChar(32)
+  scope_key       String?  @db.Uuid
+  enabled         Boolean  @default(true)
+  note            String?
+
+  created_at DateTime @default(now())
+  created_by String?  @db.Uuid
+  updated_at DateTime @default(now()) @updatedAt
+  updated_by String?  @db.Uuid
+
+  expense_type ExpenseType @relation(fields: [expense_type_id], references: [id], onDelete: Restrict)
+
+  @@index([enabled, expense_type_id], map: "idx_expense_standards_enabled_type")
+  @@map("expense_standards")
+}
+
 model DocumentSequence {
   document_type   String              @id
   prefix          String
diff --git a/server/src/app.js b/server/src/app.js
index 6ee745a0..3e88ddca 100644
--- a/server/src/app.js
+++ b/server/src/app.js
@@ -34,6 +34,7 @@ const employeesRoutes = require("./routes/employees");
 const performanceRoutes = require("./routes/performance");
 const payrollRoutes = require("./routes/payroll");
 const expenseTypesRoutes = require("./routes/expenseTypes");
+const expenseStandardsRoutes = require("./routes/expenseStandards");
 const configReadRoutes = require("./routes/configRead");
 const approvalRulesRoutes = require("./routes/approvalRules");
 const featureFlagsRoutes = require("./routes/featureFlags");
@@ -322,6 +323,7 @@ async function buildApp() {
   await app.register(masterDataHolidayCalendarsRoutes, { prefix: "/api" });
   await app.register(masterDataSuppliersRoutes, { prefix: "/api" });
   await app.register(expenseTypesRoutes, { prefix: "/api" });
+  await app.register(expenseStandardsRoutes, { prefix: "/api" });
   await app.register(configReadRoutes, { prefix: "/api" });
   await app.register(approvalRulesRoutes, { prefix: "/api" });
   await app.register(featureFlagsRoutes, { prefix: "/api" });
diff --git a/server/src/routes/expenseStandards.js b/server/src/routes/expenseStandards.js
new file mode 100644
index 00000000..d6887c17
--- /dev/null
+++ b/server/src/routes/expenseStandards.js
@@ -0,0 +1,617 @@
+const { z } = require("zod");
+
+const { AppError } = require("../utils/AppError");
+const { buildAuditLogData } = require("../utils/audit");
+const { sendData } = require("../utils/reply");
+
+const UUID_SCHEMA = z.string().uuid();
+const MONEY_SCHEMA = z.string().trim().regex(/^\d+(\.\d{1,2})?$/);
+const PER_UNIT_VALUES = ["item", "day", "trip"];
+const CONTROL_MODE_VALUES = ["warn", "block"];
+const SCOPE_TYPE_VALUES = ["global", "department"];
+
+const LIST_QUERY_SCHEMA = z
+  .object({
+    expenseTypeId: UUID_SCHEMA.optional(),
+    expense_type_id: UUID_SCHEMA.optional(),
+    scopeType: z.enum(SCOPE_TYPE_VALUES).optional(),
+    scope_type: z.enum(SCOPE_TYPE_VALUES).optional(),
+    enabled: z.enum(["true", "false", "1", "0"]).optional(),
+  })
+  .strict();
+
+const CREATE_BODY_SCHEMA = z
+  .object({
+    expenseTypeId: UUID_SCHEMA,
+    name: z.string().trim().min(1).max(100),
+    maxAmount: MONEY_SCHEMA,
+    perUnit: z.enum(PER_UNIT_VALUES).optional(),
+    controlMode: z.enum(CONTROL_MODE_VALUES).optional(),
+    scopeType: z.enum(SCOPE_TYPE_VALUES).optional(),
+    scopeKey: UUID_SCHEMA.nullish(),
+    enabled: z.boolean().optional(),
+    note: z.string().trim().max(500).nullable().optional(),
+  })
+  .strict();
+
+const UPDATE_BODY_SCHEMA = z
+  .object({
+    name: z.string().trim().min(1).max(100).optional(),
+    maxAmount: MONEY_SCHEMA.optional(),
+    perUnit: z.enum(PER_UNIT_VALUES).optional(),
+    controlMode: z.enum(CONTROL_MODE_VALUES).optional(),
+    scopeType: z.enum(SCOPE_TYPE_VALUES).optional(),
+    scopeKey: UUID_SCHEMA.nullish().optional(),
+    enabled: z.boolean().optional(),
+    note: z.string().trim().max(500).nullable().optional(),
+  })
+  .strict();
+
+function buildValidationError(details, statusCode = 400) {
+  return new AppError({
+    code: "VALID_001",
+    message: "参数校验失败",
+    statusCode,
+    details,
+  });
+}
+
+function toMoneyString(value) {
+  const numeric = Number(value ?? 0);
+  if (!Number.isFinite(numeric)) {
+    return "0.00";
+  }
+  return numeric.toFixed(2);
+}
+
+function parseExpenseStandardId(params) {
+  const parsed = UUID_SCHEMA.safeParse(params?.id);
+  if (!parsed.success) {
+    throw buildValidationError({ id: "invalid_uuid" });
+  }
+  return parsed.data;
+}
+
+function parseListQuery(query) {
+  const parsed = LIST_QUERY_SCHEMA.safeParse(query ?? {});
+  if (!parsed.success) {
+    throw buildValidationError(parsed.error.flatten());
+  }
+
+  const enabledRaw = parsed.data.enabled;
+  const enabled =
+    enabledRaw == null
+      ? null
+      : ["true", "1"].includes(enabledRaw)
+        ? true
+        : false;
+
+  return {
+    expenseTypeId: parsed.data.expenseTypeId ?? parsed.data.expense_type_id ?? null,
+    scopeType: parsed.data.scopeType ?? parsed.data.scope_type ?? null,
+    enabled,
+  };
+}
+
+function parseBody(schema, body) {
+  const parsed = schema.safeParse(body ?? {});
+  if (!parsed.success) {
+    throw buildValidationError(parsed.error.flatten());
+  }
+
+  const data = parsed.data;
+  if ("maxAmount" in data && data.maxAmount != null && Number(data.maxAmount) <= 0) {
+    throw buildValidationError({ maxAmount: "must_be_positive" });
+  }
+
+  return data;
+}
+
+async function ensureExpenseTypeExists(tx, expenseTypeId) {
+  const expenseType = await tx.expenseType.findUnique({
+    where: { id: expenseTypeId },
+    select: {
+      id: true,
+      code: true,
+      name: true,
+    },
+  });
+
+  if (!expenseType) {
+    throw new AppError({
+      code: "VALID_001",
+      message: "参数校验失败",
+      statusCode: 409,
+      details: { expenseTypeId: "not_found" },
+    });
+  }
+
+  return expenseType;
+}
+
+async function ensureScopeKeyValid(tx, scopeType, scopeKey) {
+  if (scopeType === "global") {
+    return null;
+  }
+
+  if (!scopeKey) {
+    throw buildValidationError({ scopeKey: "required_for_department_scope" });
+  }
+
+  const department = await tx.department.findUnique({
+    where: { id: scopeKey },
+    select: {
+      id: true,
+      name: true,
+      archived_at: true,
+    },
+  });
+
+  if (!department || department.archived_at) {
+    throw new AppError({
+      code: "VALID_001",
+      message: "参数校验失败",
+      statusCode: 409,
+      details: { scopeKey: "invalid_department" },
+    });
+  }
+
+  return department;
+}
+
+function buildStandardPayload(body, actorId) {
+  const scopeType = body.scopeType ?? "global";
+  return {
+    ...(typeof body.name === "string" ? { name: body.name } : {}),
+    ...(typeof body.maxAmount === "string" ? { max_amount: body.maxAmount } : {}),
+    ...(typeof body.perUnit === "string" ? { per_unit: body.perUnit } : {}),
+    ...(typeof body.controlMode === "string" ? { control_mode: body.controlMode } : {}),
+    scope_type: scopeType,
+    scope_key: scopeType === "department" ? body.scopeKey ?? null : null,
+    ...(typeof body.enabled === "boolean" ? { enabled: body.enabled } : {}),
+    ...(Object.prototype.hasOwnProperty.call(body, "note") ? { note: body.note?.trim?.() || null } : {}),
+    updated_by: actorId,
+  };
+}
+
+function buildScopeLabel(item, departmentMap) {
+  if (item.scope_type === "global") {
+    return "全局";
+  }
+  return departmentMap.get(item.scope_key) ?? item.scope_key ?? "指定部门";
+}
+
+function mapExpenseStandard(item, departmentMap) {
+  return {
+    id: item.id,
+    expenseTypeId: item.expense_type_id,
+    expenseTypeName: item.expense_type?.name ?? null,
+    name: item.name,
+    maxAmount: toMoneyString(item.max_amount),
+    perUnit: item.per_unit,
+    controlMode: item.control_mode,
+    scopeType: item.scope_type,
+    scopeKey: item.scope_key ?? null,
+    scopeLabel: buildScopeLabel(item, departmentMap),
+    enabled: item.enabled,
+    note: item.note ?? null,
+    createdAt: item.created_at?.toISOString?.() ?? null,
+    updatedAt: item.updated_at?.toISOString?.() ?? null,
+  };
+}
+
+function normalizeRecordSnapshot(item) {
+  if (!item) {
+    return null;
+  }
+
+  return {
+    id: item.id,
+    expenseTypeId: item.expense_type_id,
+    name: item.name,
+    maxAmount: toMoneyString(item.max_amount),
+    perUnit: item.per_unit,
+    controlMode: item.control_mode,
+    scopeType: item.scope_type,
+    scopeKey: item.scope_key ?? null,
+    enabled: item.enabled,
+    note: item.note ?? null,
+  };
+}
+
+async function buildDepartmentMap(prisma, items) {
+  const departmentIds = Array.from(
+    new Set(
+      items
+        .filter((item) => item.scope_type === "department" && item.scope_key)
+        .map((item) => item.scope_key),
+    ),
+  );
+
+  if (!departmentIds.length) {
+    return new Map();
+  }
+
+  const departments = await prisma.department.findMany({
+    where: {
+      id: { in: departmentIds },
+    },
+    select: {
+      id: true,
+      name: true,
+    },
+  });
+
+  return new Map(departments.map((item) => [item.id, item.name]));
+}
+
+async function expenseStandardsRoutes(fastify) {
+  fastify.get(
+    "/expense-standards",
+    {
+      preHandler: fastify.authenticate,
+    },
+    async (request, reply) => {
+      const query = parseListQuery(request.query);
+      const canManage = fastify.hasPermission(request.employee, "system.settings");
+
+      if (!canManage && (!query.expenseTypeId || query.enabled !== true)) {
+        throw new AppError({
+          code: "PERM_001",
+          message: "无权限",
+          statusCode: 403,
+        });
+      }
+
+      const items = await fastify.prisma.expenseStandard.findMany({
+        where: {
+          ...(query.expenseTypeId ? { expense_type_id: query.expenseTypeId } : {}),
+          ...(query.scopeType ? { scope_type: query.scopeType } : {}),
+          ...(query.enabled == null ? {} : { enabled: query.enabled }),
+        },
+        orderBy: [
+          { expense_type: { sort_order: "asc" } },
+          { expense_type: { code: "asc" } },
+          { scope_type: "asc" },
+          { name: "asc" },
+          { created_at: "asc" },
+        ],
+        select: {
+          id: true,
+          expense_type_id: true,
+          name: true,
+          max_amount: true,
+          per_unit: true,
+          control_mode: true,
+          scope_type: true,
+          scope_key: true,
+          enabled: true,
+          note: true,
+          created_at: true,
+          updated_at: true,
+          expense_type: {
+            select: {
+              id: true,
+              name: true,
+              code: true,
+            },
+          },
+        },
+      });
+
+      const departmentMap = await buildDepartmentMap(fastify.prisma, items);
+      return sendData(reply, request, {
+        expenseTypeId: query.expenseTypeId,
+        scopeType: query.scopeType,
+        enabled: query.enabled,
+        items: items.map((item) => mapExpenseStandard(item, departmentMap)),
+      });
+    },
+  );
+
+  fastify.post(
+    "/expense-standards",
+    {
+      preHandler: fastify.requirePermission("system.settings"),
+    },
+    async (request, reply) => {
+      const body = parseBody(CREATE_BODY_SCHEMA, request.body);
+      const now = new Date();
+
+      let created = null;
+      try {
+        created = await fastify.prisma.$transaction(async (tx) => {
+          const expenseType = await ensureExpenseTypeExists(tx, body.expenseTypeId);
+          const scopeType = body.scopeType ?? "global";
+          const department = await ensureScopeKeyValid(tx, scopeType, body.scopeKey ?? null);
+
+          const record = await tx.expenseStandard.create({
+            data: {
+              expense_type_id: body.expenseTypeId,
+              name: body.name,
+              max_amount: body.maxAmount,
+              per_unit: body.perUnit ?? "item",
+              control_mode: body.controlMode ?? "warn",
+              scope_type: scopeType,
+              scope_key: scopeType === "department" ? department?.id ?? body.scopeKey ?? null : null,
+              enabled: body.enabled ?? true,
+              note: body.note?.trim?.() || null,
+              created_at: now,
+              created_by: request.employee.id,
+              updated_at: now,
+              updated_by: request.employee.id,
+            },
+            select: {
+              id: true,
+              expense_type_id: true,
+              name: true,
+              max_amount: true,
+              per_unit: true,
+              control_mode: true,
+              scope_type: true,
+              scope_key: true,
+              enabled: true,
+              note: true,
+              created_at: true,
+              updated_at: true,
+              expense_type: {
+                select: {
+                  id: true,
+                  name: true,
+                },
+              },
+            },
+          });
+
+          await tx.auditLog.create({
+            data: buildAuditLogData(request, {
+              actorId: request.employee.id,
+              action: "EXPENSE_STANDARD_CREATED",
+              targetType: "expense_standard",
+              targetId: record.id,
+              extra: {
+                expenseTypeId: expenseType.id,
+                expenseTypeName: expenseType.name,
+                scopeType: record.scope_type,
+                scopeKey: record.scope_key,
+                controlMode: record.control_mode,
+                maxAmount: toMoneyString(record.max_amount),
+                after: normalizeRecordSnapshot(record),
+              },
+            }),
+          });
+
+          return record;
+        });
+      } catch (error) {
+        if (error?.code === "P2002") {
+          throw new AppError({
+            code: "VALID_001",
+            message: "参数校验失败",
+            statusCode: 409,
+            details: { duplicate: "expense_type_scope_conflict" },
+          });
+        }
+        throw error;
+      }
+
+      const departmentMap = await buildDepartmentMap(fastify.prisma, [created]);
+      return sendData(reply, request, mapExpenseStandard(created, departmentMap));
+    },
+  );
+
+  fastify.patch(
+    "/expense-standards/:id",
+    {
+      preHandler: fastify.requirePermission("system.settings"),
+    },
+    async (request, reply) => {
+      const standardId = parseExpenseStandardId(request.params);
+      const body = parseBody(UPDATE_BODY_SCHEMA, request.body);
+      if (!Object.keys(body).length) {
+        throw buildValidationError({ body: "empty" });
+      }
+
+      const now = new Date();
+      let updated = null;
+      try {
+        updated = await fastify.prisma.$transaction(async (tx) => {
+          const current = await tx.expenseStandard.findUnique({
+            where: { id: standardId },
+            select: {
+              id: true,
+              expense_type_id: true,
+              name: true,
+              max_amount: true,
+              per_unit: true,
+              control_mode: true,
+              scope_type: true,
+              scope_key: true,
+              enabled: true,
+              note: true,
+            },
+          });
+
+          if (!current) {
+            throw new AppError({
+              code: "SYS_404",
+              message: "Not Found",
+              statusCode: 404,
+            });
+          }
+
+          const mergedBody = {
+            ...body,
+            scopeType: body.scopeType ?? current.scope_type,
+            scopeKey:
+              Object.prototype.hasOwnProperty.call(body, "scopeKey")
+                ? body.scopeKey ?? null
+                : current.scope_key ?? null,
+          };
+
+          await ensureScopeKeyValid(tx, mergedBody.scopeType, mergedBody.scopeKey);
+
+          const record = await tx.expenseStandard.update({
+            where: { id: standardId },
+            data: {
+              ...buildStandardPayload(mergedBody, request.employee.id),
+              updated_at: now,
+            },
+            select: {
+              id: true,
+              expense_type_id: true,
+              name: true,
+              max_amount: true,
+              per_unit: true,
+              control_mode: true,
+              scope_type: true,
+              scope_key: true,
+              enabled: true,
+              note: true,
+              created_at: true,
+              updated_at: true,
+              expense_type: {
+                select: {
+                  id: true,
+                  name: true,
+                },
+              },
+            },
+          });
+
+          await tx.auditLog.create({
+            data: buildAuditLogData(request, {
+              actorId: request.employee.id,
+              action: "EXPENSE_STANDARD_UPDATED",
+              targetType: "expense_standard",
+              targetId: standardId,
+              extra: {
+                expenseTypeId: record.expense_type_id,
+                scopeType: record.scope_type,
+                scopeKey: record.scope_key,
+                controlMode: record.control_mode,
+                maxAmount: toMoneyString(record.max_amount),
+                before: normalizeRecordSnapshot(current),
+                after: normalizeRecordSnapshot(record),
+              },
+            }),
+          });
+
+          return record;
+        });
+      } catch (error) {
+        if (error?.code === "P2002") {
+          throw new AppError({
+            code: "VALID_001",
+            message: "参数校验失败",
+            statusCode: 409,
+            details: { duplicate: "expense_type_scope_conflict" },
+          });
+        }
+        throw error;
+      }
+
+      const departmentMap = await buildDepartmentMap(fastify.prisma, [updated]);
+      return sendData(reply, request, mapExpenseStandard(updated, departmentMap));
+    },
+  );
+
+  fastify.delete(
+    "/expense-standards/:id",
+    {
+      preHandler: fastify.requirePermission("system.settings"),
+    },
+    async (request, reply) => {
+      const standardId = parseExpenseStandardId(request.params);
+      const now = new Date();
+
+      const deleted = await fastify.prisma.$transaction(async (tx) => {
+        const current = await tx.expenseStandard.findUnique({
+          where: { id: standardId },
+          select: {
+            id: true,
+            expense_type_id: true,
+            name: true,
+            max_amount: true,
+            per_unit: true,
+            control_mode: true,
+            scope_type: true,
+            scope_key: true,
+            enabled: true,
+            note: true,
+            created_at: true,
+            updated_at: true,
+            expense_type: {
+              select: {
+                id: true,
+                name: true,
+              },
+            },
+          },
+        });
+
+        if (!current) {
+          throw new AppError({
+            code: "SYS_404",
+            message: "Not Found",
+            statusCode: 404,
+          });
+        }
+
+        const record = await tx.expenseStandard.update({
+          where: { id: standardId },
+          data: {
+            enabled: false,
+            updated_at: now,
+            updated_by: request.employee.id,
+          },
+          select: {
+            id: true,
+            expense_type_id: true,
+            name: true,
+            max_amount: true,
+            per_unit: true,
+            control_mode: true,
+            scope_type: true,
+            scope_key: true,
+            enabled: true,
+            note: true,
+            created_at: true,
+            updated_at: true,
+            expense_type: {
+              select: {
+                id: true,
+                name: true,
+              },
+            },
+          },
+        });
+
+        await tx.auditLog.create({
+          data: buildAuditLogData(request, {
+            actorId: request.employee.id,
+            action: "EXPENSE_STANDARD_DELETED",
+            targetType: "expense_standard",
+            targetId: standardId,
+            extra: {
+              expenseTypeId: record.expense_type_id,
+              scopeType: record.scope_type,
+              scopeKey: record.scope_key,
+              controlMode: record.control_mode,
+              maxAmount: toMoneyString(record.max_amount),
+              before: normalizeRecordSnapshot(current),
+              after: normalizeRecordSnapshot(record),
+            },
+          }),
+        });
+
+        return record;
+      });
+
+      const departmentMap = await buildDepartmentMap(fastify.prisma, [deleted]);
+      return sendData(reply, request, mapExpenseStandard(deleted, departmentMap));
+    },
+  );
+}
+
+module.exports = expenseStandardsRoutes;
diff --git a/server/src/routes/reimbursements.js b/server/src/routes/reimbursements.js
index c93b3a04..c08afdad 100644
--- a/server/src/routes/reimbursements.js
+++ b/server/src/routes/reimbursements.js
@@ -663,16 +663,37 @@ function buildBudgetHint(budgetPool, reimbursementAmount, controlMode) {
 }
 
 function buildPrecheckBlockedError(precheck) {
+  const standardViolations = Array.isArray(precheck?.standardChecks)
+    ? precheck.standardChecks.filter((item) => item.exceeded && item.controlMode === "block")
+    : [];
+
   return new AppError({
     code: "VALID_001",
     message: "参数校验失败",
-    statusCode: 409,
+    statusCode: standardViolations.length ? 400 : 409,
     details: {
       precheck: precheck.blockingReasons,
+      ...(standardViolations.length ? { standardViolations } : {}),
     },
   });
 }
 
+function listExceededStandardViolations(precheck, controlMode = null) {
+  if (!Array.isArray(precheck?.standardChecks)) {
+    return [];
+  }
+
+  return precheck.standardChecks.filter((item) => {
+    if (!item.exceeded) {
+      return false;
+    }
+    if (!controlMode) {
+      return true;
+    }
+    return item.controlMode === controlMode;
+  });
+}
+
 function buildSkippedNotificationResult(reason) {
   return { skipped: true, reason };
 }
@@ -2079,6 +2100,8 @@ async function reimbursementRoutes(fastify) {
         if (authoritativePrecheck.decision === "block") {
           throw buildPrecheckBlockedError(authoritativePrecheck);
         }
+        const standardViolations = listExceededStandardViolations(authoritativePrecheck);
+        const standardWarnings = listExceededStandardViolations(authoritativePrecheck, "warn");
         const openedRiskFlags = await createRiskFlagsFromPrecheck(tx, {
           entityType: "reimbursement",
           entityId: reimbursementId,
@@ -2238,6 +2261,7 @@ async function reimbursementRoutes(fastify) {
               department_id: reimbursement.department_id,
               workflow_steps_snapshot: workflowSteps,
               approval_rule_id: approvalRule.id,
+              standardViolations,
             },
             context_department_id: reimbursement.department_id,
             created_by: request.employee.id,
@@ -2319,6 +2343,7 @@ async function reimbursementRoutes(fastify) {
             status: "reviewing",
             budget: budgetCheck,
             precheckDecision: authoritativePrecheck.decision,
+            standardWarnings,
             openedRiskFlagCount: openedRiskFlags.length,
           },
           sideEffectsContext: {
diff --git a/server/src/routes/workflow.js b/server/src/routes/workflow.js
index 266092b3..e6ea208f 100644
--- a/server/src/routes/workflow.js
+++ b/server/src/routes/workflow.js
@@ -1450,6 +1450,7 @@ async function workflowRoutes(fastify) {
               entity_id: true,
               current_status: true,
               current_step_id: true,
+              context_data: true,
               started_at: true,
               completed_at: true,
               reimbursement_form: {
@@ -1676,6 +1677,11 @@ async function workflowRoutes(fastify) {
             entityType: task.workflow_instance.entity_type,
             currentStatus: task.workflow_instance.current_status,
             currentStepId: task.workflow_instance.current_step_id,
+            contextData: {
+              standardViolations: Array.isArray(task.workflow_instance.context_data?.standardViolations)
+                ? task.workflow_instance.context_data.standardViolations
+                : [],
+            },
             startedAt: isoOrNull(task.workflow_instance.started_at),
             completedAt: isoOrNull(task.workflow_instance.completed_at),
           }
diff --git a/server/src/services/feeControl.js b/server/src/services/feeControl.js
index 50624ae6..07114a07 100644
--- a/server/src/services/feeControl.js
+++ b/server/src/services/feeControl.js
@@ -56,6 +56,7 @@ function buildBasePrecheck(entityType, entityId) {
     decision: "pass",
     matchedBudgetControlRule: null,
     budgetHint: null,
+    standardChecks: [],
     warnings: [],
     blockingReasons: [],
     riskFlags: [],
@@ -70,6 +71,7 @@ function buildDisabledPrecheck(entityType, entityId) {
     decision: "pass",
     matchedBudgetControlRule: null,
     budgetHint: null,
+    standardChecks: [],
     warnings: [],
     blockingReasons: [],
     riskFlags: [],
@@ -272,6 +274,165 @@ function appendBlockingReasons(response, issues) {
   return response;
 }
 
+function buildStandardIssueDetail(check) {
+  return `标准：${check.standardName}，上限 ¥${check.maxAmount}/${check.perUnit}，当前 ¥${check.amount}，超出 ¥${check.exceededAmount}`;
+}
+
+function buildStandardIssue(check) {
+  return buildIssue(
+    `expense_standard_${check.controlMode}_${check.itemId}`,
+    `${check.expenseTypeName} 超出费用标准`,
+    buildStandardIssueDetail(check),
+  );
+}
+
+async function checkExpenseStandards(tx, { reimbursementId }) {
+  const reimbursement = await tx.reimbursementForm.findUnique({
+    where: { id: reimbursementId },
+    select: {
+      id: true,
+      department_id: true,
+      items: {
+        orderBy: [{ created_at: "asc" }, { id: "asc" }],
+        select: {
+          id: true,
+          expense_type_id: true,
+          amount: true,
+          expense_type: {
+            select: {
+              id: true,
+              name: true,
+            },
+          },
+        },
+      },
+    },
+  });
+
+  if (!reimbursement) {
+    throw buildNotFoundError();
+  }
+
+  const expenseTypeIds = Array.from(
+    new Set(reimbursement.items.map((item) => item.expense_type_id).filter(Boolean)),
+  );
+
+  if (!expenseTypeIds.length) {
+    return [];
+  }
+
+  const standards = await tx.expenseStandard.findMany({
+    where: {
+      enabled: true,
+      expense_type_id: { in: expenseTypeIds },
+      OR: [
+        { scope_type: "global" },
+        ...(reimbursement.department_id
+          ? [{ scope_type: "department", scope_key: reimbursement.department_id }]
+          : []),
+      ],
+    },
+    orderBy: [{ created_at: "asc" }, { id: "asc" }],
+    select: {
+      id: true,
+      expense_type_id: true,
+      name: true,
+      max_amount: true,
+      per_unit: true,
+      control_mode: true,
+      scope_type: true,
+      scope_key: true,
+    },
+  });
+
+  const standardMap = new Map();
+  for (const standard of standards) {
+    const current = standardMap.get(standard.expense_type_id);
+    if (!current) {
+      standardMap.set(standard.expense_type_id, standard);
+      continue;
+    }
+
+    const currentPriority = current.scope_type === "department" ? 2 : 1;
+    const nextPriority = standard.scope_type === "department" ? 2 : 1;
+    if (nextPriority > currentPriority) {
+      standardMap.set(standard.expense_type_id, standard);
+    }
+  }
+
+  return reimbursement.items
+    .map((item) => {
+      const standard = standardMap.get(item.expense_type_id);
+      if (!standard) {
+        return null;
+      }
+
+      const amount = toMoneyNumber(item.amount);
+      const maxAmount = toMoneyNumber(standard.max_amount);
+      const exceededAmount = Math.max(0, toMoneyNumber(amount - maxAmount));
+
+      return {
+        itemId: item.id,
+        expenseTypeId: item.expense_type_id,
+        expenseTypeName: item.expense_type?.name ?? item.expense_type_id,
+        amount: toMoneyString(amount),
+        standardId: standard.id,
+        standardName: standard.name,
+        maxAmount: toMoneyString(maxAmount),
+        perUnit: standard.per_unit,
+        controlMode: standard.control_mode,
+        scopeType: standard.scope_type,
+        scopeKey: standard.scope_key ?? null,
+        exceeded: amount > maxAmount,
+        exceededAmount: toMoneyString(exceededAmount),
+      };
+    })
+    .filter(Boolean);
+}
+
+function mergeReimbursementPrecheck(precheck, standardChecks) {
+  const response = {
+    ...precheck,
+    warnings: [...precheck.warnings],
+    blockingReasons: [...precheck.blockingReasons],
+    riskFlags: [...precheck.riskFlags],
+    nextActions: [...precheck.nextActions],
+    standardChecks,
+  };
+
+  const warnChecks = standardChecks.filter((item) => item.exceeded && item.controlMode === "warn");
+  const blockChecks = standardChecks.filter((item) => item.exceeded && item.controlMode === "block");
+
+  if (warnChecks.length) {
+    response.warnings.push(...warnChecks.map((item) => buildStandardIssue(item)));
+  }
+  if (blockChecks.length) {
+    response.blockingReasons.push(...blockChecks.map((item) => buildStandardIssue(item)));
+  }
+
+  if (response.blockingReasons.length) {
+    response.decision = "block";
+    response.nextActions = ["修正阻断项后再提交"];
+    return response;
+  }
+
+  if (response.riskFlags.length) {
+    response.decision = "manual_review";
+    response.nextActions = ["允许提交，但会生成待复核风险项"];
+    return response;
+  }
+
+  if (response.warnings.length) {
+    response.decision = "warn";
+    response.nextActions = ["确认提示后可继续提交"];
+    return response;
+  }
+
+  response.decision = "pass";
+  response.nextActions = ["可直接提交"];
+  return response;
+}
+
 async function createRiskFlagsFromPrecheck(tx, { entityType, entityId, actorId, precheck, source = "precheck" }) {
   if (precheck.decision !== "manual_review" || !precheck.riskFlags.length) {
     return [];
@@ -308,6 +469,7 @@ async function createRiskFlagsFromPrecheck(tx, { entityType, entityId, actorId,
           openedByDecision: precheck.decision,
           matchedBudgetControlRule: precheck.matchedBudgetControlRule,
           budgetHint: precheck.budgetHint,
+          standardChecks: precheck.standardChecks ?? [],
         },
         created_by: actorId ?? null,
       },
@@ -843,15 +1005,27 @@ async function resolveEntityPrecheck({
   });
 
   if (!gate.enabled) {
-    return buildDisabledPrecheck(entityType, entityId);
+    const disabledPrecheck = buildDisabledPrecheck(entityType, entityId);
+    if (entityType !== "reimbursement") {
+      return disabledPrecheck;
+    }
+    const standardChecks = await checkExpenseStandards(prisma, { reimbursementId: entityId });
+    return mergeReimbursementPrecheck(disabledPrecheck, standardChecks);
   }
 
-  return buildEntityPrecheck(prisma, {
+  const precheck = await buildEntityPrecheck(prisma, {
     entityType,
     entityId,
     config,
     logger,
   });
+
+  if (entityType !== "reimbursement") {
+    return precheck;
+  }
+
+  const standardChecks = await checkExpenseStandards(prisma, { reimbursementId: entityId });
+  return mergeReimbursementPrecheck(precheck, standardChecks);
 }
 
 module.exports = {
@@ -870,6 +1044,8 @@ module.exports = {
   buildReimbursementPrecheck,
   buildPurchaseRequestPrecheck,
   buildTravelRequestPrecheck,
+  checkExpenseStandards,
   loadPrecheckEntityContext,
+  mergeReimbursementPrecheck,
   resolveEntityPrecheck,
 };
diff --git a/server/tests/unit/routes/expenseStandards.test.js b/server/tests/unit/routes/expenseStandards.test.js
new file mode 100644
index 00000000..02572427
--- /dev/null
+++ b/server/tests/unit/routes/expenseStandards.test.js
@@ -0,0 +1,457 @@
+const Fastify = require("fastify");
+
+const expenseStandardsRoutes = require("../../../src/routes/expenseStandards");
+const { AppError } = require("../../../src/utils/AppError");
+
+const ACTOR_ID = "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa";
+const EXPENSE_TYPE_ID = "11111111-1111-4111-8111-111111111111";
+const DEPARTMENT_ID = "22222222-2222-4222-8222-222222222222";
+const STANDARD_ID = "33333333-3333-4333-8333-333333333333";
+
+function cloneStandard(item) {
+  return {
+    ...item,
+    created_at: new Date(item.created_at),
+    updated_at: new Date(item.updated_at),
+    expense_type: item.expense_type ? { ...item.expense_type } : null,
+  };
+}
+
+function buildStandard(overrides = {}) {
+  return {
+    id: STANDARD_ID,
+    expense_type_id: EXPENSE_TYPE_ID,
+    name: "日常交通费上限",
+    max_amount: "120.00",
+    per_unit: "item",
+    control_mode: "warn",
+    scope_type: "global",
+    scope_key: null,
+    enabled: true,
+    note: "默认提示",
+    created_at: new Date("2026-04-08T09:00:00.000Z"),
+    updated_at: new Date("2026-04-08T09:00:00.000Z"),
+    expense_type: {
+      id: EXPENSE_TYPE_ID,
+      code: "traffic",
+      name: "交通费",
+    },
+    ...overrides,
+  };
+}
+
+function findDuplicate(items, candidate, currentId = null) {
+  return items.find((item) => {
+    if (currentId && item.id === currentId) {
+      return false;
+    }
+    return (
+      item.expense_type_id === candidate.expense_type_id &&
+      item.scope_type === candidate.scope_type &&
+      (item.scope_key ?? null) === (candidate.scope_key ?? null)
+    );
+  });
+}
+
+function makeSelectStandard(state, item) {
+  const expenseType = state.expenseTypes.find((record) => record.id === item.expense_type_id) ?? null;
+  return {
+    ...item,
+    expense_type: expenseType
+      ? {
+          id: expenseType.id,
+          code: expenseType.code,
+          name: expenseType.name,
+        }
+      : null,
+  };
+}
+
+async function buildApp(options = {}) {
+  const app = Fastify();
+  const actor = options.actor ?? {
+    id: ACTOR_ID,
+    permissionCodes: ["system.settings"],
+    department_id: DEPARTMENT_ID,
+  };
+
+  const state = {
+    expenseTypes: options.expenseTypes ?? [
+      {
+        id: EXPENSE_TYPE_ID,
+        code: "traffic",
+        name: "交通费",
+      },
+    ],
+    departments: options.departments ?? [
+      {
+        id: DEPARTMENT_ID,
+        name: "财务部",
+        archived_at: null,
+      },
+    ],
+    standards: (options.standards ?? [buildStandard()]).map((item) => cloneStandard(item)),
+    auditLogs: [],
+  };
+
+  function buildPrismaLike(stateRef) {
+    return {
+      expenseStandard: {
+        findMany: vi.fn(async ({ where } = {}) => {
+          return stateRef.standards
+            .filter((item) => {
+              if (where?.expense_type_id && item.expense_type_id !== where.expense_type_id) {
+                return false;
+              }
+              if (where?.scope_type && item.scope_type !== where.scope_type) {
+                return false;
+              }
+              if (typeof where?.enabled === "boolean" && item.enabled !== where.enabled) {
+                return false;
+              }
+              return true;
+            })
+            .map((item) => makeSelectStandard(stateRef, cloneStandard(item)));
+        }),
+        findUnique: vi.fn(async ({ where }) => {
+          const found = stateRef.standards.find((item) => item.id === where.id) ?? null;
+          return found ? makeSelectStandard(stateRef, cloneStandard(found)) : null;
+        }),
+        create: vi.fn(async ({ data }) => {
+          if (findDuplicate(stateRef.standards, data)) {
+            const error = new Error("duplicate");
+            error.code = "P2002";
+            throw error;
+          }
+
+          const record = buildStandard({
+            id: `standard-${stateRef.standards.length + 1}`,
+            expense_type_id: data.expense_type_id,
+            name: data.name,
+            max_amount: data.max_amount,
+            per_unit: data.per_unit,
+            control_mode: data.control_mode,
+            scope_type: data.scope_type,
+            scope_key: data.scope_key ?? null,
+            enabled: data.enabled,
+            note: data.note ?? null,
+            created_at: data.created_at,
+            updated_at: data.updated_at,
+          });
+          stateRef.standards.push(record);
+          return makeSelectStandard(stateRef, cloneStandard(record));
+        }),
+        update: vi.fn(async ({ where, data }) => {
+          const index = stateRef.standards.findIndex((item) => item.id === where.id);
+          if (index < 0) {
+            throw new AppError({ code: "SYS_404", message: "Not Found", statusCode: 404 });
+          }
+          const next = {
+            ...stateRef.standards[index],
+            ...data,
+          };
+          if (findDuplicate(stateRef.standards, next, where.id)) {
+            const error = new Error("duplicate");
+            error.code = "P2002";
+            throw error;
+          }
+          stateRef.standards[index] = next;
+          return makeSelectStandard(stateRef, cloneStandard(next));
+        }),
+      },
+      expenseType: {
+        findUnique: vi.fn(async ({ where }) => stateRef.expenseTypes.find((item) => item.id === where.id) ?? null),
+      },
+      department: {
+        findUnique: vi.fn(async ({ where }) => stateRef.departments.find((item) => item.id === where.id) ?? null),
+        findMany: vi.fn(async ({ where }) => {
+          const ids = where?.id?.in ?? [];
+          return stateRef.departments.filter((item) => ids.includes(item.id));
+        }),
+      },
+      auditLog: {
+        create: vi.fn(async ({ data }) => {
+          stateRef.auditLogs.push(data);
+          return { id: `audit-${stateRef.auditLogs.length}` };
+        }),
+      },
+    };
+  }
+
+  const prisma = buildPrismaLike(state);
+  prisma.$transaction = vi.fn(async (callback) => {
+    const txState = {
+      expenseTypes: state.expenseTypes.map((item) => ({ ...item })),
+      departments: state.departments.map((item) => ({ ...item })),
+      standards: state.standards.map((item) => cloneStandard(item)),
+      auditLogs: state.auditLogs.map((item) => ({ ...item })),
+    };
+    const tx = buildPrismaLike(txState);
+    const result = await callback(tx);
+    state.expenseTypes = txState.expenseTypes;
+    state.departments = txState.departments;
+    state.standards = txState.standards;
+    state.auditLogs = txState.auditLogs;
+    return result;
+  });
+
+  app.decorate("authenticate", async (request) => {
+    request.employee = actor;
+  });
+  app.decorate("requirePermission", (permissionCode) => async (request) => {
+    request.employee = actor;
+    const permissionCodes = actor.permissionCodes ?? [];
+    if (!permissionCodes.includes("*") && !permissionCodes.includes(permissionCode)) {
+      throw new AppError({ code: "PERM_001", message: "无权限", statusCode: 403 });
+    }
+  });
+  app.decorate("hasPermission", (employee, permissionCode) => {
+    const permissionCodes = employee.permissionCodes ?? [];
+    return permissionCodes.includes("*") || permissionCodes.includes(permissionCode);
+  });
+  app.decorate("prisma", prisma);
+  app.decorate("config", {});
+  app.setErrorHandler((error, request, reply) => {
+    reply.status(error.statusCode || 500).send({
+      requestId: request.id,
+      error: {
+        code: error.code || "SYS_001",
+        message: error.message,
+        details: error.details ?? null,
+      },
+    });
+  });
+
+  await app.register(expenseStandardsRoutes, { prefix: "/api" });
+  return { app, state, prisma };
+}
+
+describe("expense standards routes", () => {
+  it("lists standards with filters and scope label", async () => {
+    const { app } = await buildApp({
+      standards: [
+        buildStandard(),
+        buildStandard({
+          id: "44444444-4444-4444-8444-444444444444",
+          scope_type: "department",
+          scope_key: DEPARTMENT_ID,
+          control_mode: "block",
+        }),
+      ],
+    });
+
+    const response = await app.inject({
+      method: "GET",
+      url: `/api/expense-standards?expenseTypeId=${EXPENSE_TYPE_ID}&enabled=true`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    const payload = response.json();
+    expect(payload.data.items).toHaveLength(2);
+    expect(payload.data.items[0]).toMatchObject({
+      expenseTypeId: EXPENSE_TYPE_ID,
+      expenseTypeName: "交通费",
+      scopeLabel: expect.any(String),
+    });
+
+    await app.close();
+  });
+
+  it("allows authenticated non-admin to read scoped enabled standards for item editor", async () => {
+    const { app } = await buildApp({
+      actor: {
+        id: ACTOR_ID,
+        permissionCodes: ["expense.submit"],
+        department_id: DEPARTMENT_ID,
+      },
+    });
+
+    const response = await app.inject({
+      method: "GET",
+      url: `/api/expense-standards?expenseTypeId=${EXPENSE_TYPE_ID}&enabled=true`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    await app.close();
+  });
+
+  it("rejects broad list read for non-admin users", async () => {
+    const { app } = await buildApp({
+      actor: {
+        id: ACTOR_ID,
+        permissionCodes: ["expense.submit"],
+        department_id: DEPARTMENT_ID,
+      },
+    });
+
+    const response = await app.inject({
+      method: "GET",
+      url: "/api/expense-standards",
+    });
+
+    expect(response.statusCode).toBe(403);
+    await app.close();
+  });
+
+  it("creates a department scoped standard and writes audit log", async () => {
+    const { app, state } = await buildApp({ standards: [] });
+
+    const response = await app.inject({
+      method: "POST",
+      url: "/api/expense-standards",
+      payload: {
+        expenseTypeId: EXPENSE_TYPE_ID,
+        name: "出差餐补上限",
+        maxAmount: "180.00",
+        perUnit: "day",
+        controlMode: "block",
+        scopeType: "department",
+        scopeKey: DEPARTMENT_ID,
+        note: "财务要求",
+      },
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(state.standards).toHaveLength(1);
+    expect(state.standards[0]).toMatchObject({
+      scope_type: "department",
+      scope_key: DEPARTMENT_ID,
+      control_mode: "block",
+      per_unit: "day",
+    });
+    expect(state.auditLogs).toHaveLength(1);
+    expect(state.auditLogs[0]).toMatchObject({
+      action: "EXPENSE_STANDARD_CREATED",
+      target_type: "expense_standard",
+    });
+
+    await app.close();
+  });
+
+  it("rejects create when expense type does not exist", async () => {
+    const { app } = await buildApp({ standards: [] });
+
+    const response = await app.inject({
+      method: "POST",
+      url: "/api/expense-standards",
+      payload: {
+        expenseTypeId: "55555555-5555-4555-8555-555555555555",
+        name: "无效标准",
+        maxAmount: "50.00",
+      },
+    });
+
+    expect(response.statusCode).toBe(409);
+    expect(response.json().error.details).toEqual({ expenseTypeId: "not_found" });
+
+    await app.close();
+  });
+
+  it("rejects department scope without scopeKey", async () => {
+    const { app } = await buildApp({ standards: [] });
+
+    const response = await app.inject({
+      method: "POST",
+      url: "/api/expense-standards",
+      payload: {
+        expenseTypeId: EXPENSE_TYPE_ID,
+        name: "部门标准",
+        maxAmount: "88.00",
+        scopeType: "department",
+      },
+    });
+
+    expect(response.statusCode).toBe(400);
+    expect(response.json().error.details).toEqual({ scopeKey: "required_for_department_scope" });
+
+    await app.close();
+  });
+
+  it("rejects duplicate type and scope via unique conflict", async () => {
+    const { app } = await buildApp();
+
+    const response = await app.inject({
+      method: "POST",
+      url: "/api/expense-standards",
+      payload: {
+        expenseTypeId: EXPENSE_TYPE_ID,
+        name: "重复 global",
+        maxAmount: "88.00",
+      },
+    });
+
+    expect(response.statusCode).toBe(409);
+    expect(response.json().error.details).toEqual({ duplicate: "expense_type_scope_conflict" });
+
+    await app.close();
+  });
+
+  it("updates a standard and writes before/after audit snapshot", async () => {
+    const { app, state } = await buildApp();
+
+    const response = await app.inject({
+      method: "PATCH",
+      url: `/api/expense-standards/${STANDARD_ID}`,
+      payload: {
+        maxAmount: "150.00",
+        controlMode: "block",
+        note: "已升级为阻断",
+      },
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(state.standards[0]).toMatchObject({
+      max_amount: "150.00",
+      control_mode: "block",
+      note: "已升级为阻断",
+    });
+    expect(state.auditLogs.at(-1)).toMatchObject({
+      action: "EXPENSE_STANDARD_UPDATED",
+      extra: expect.objectContaining({
+        before: expect.any(Object),
+        after: expect.any(Object),
+      }),
+    });
+
+    await app.close();
+  });
+
+  it("soft deletes by setting enabled=false and writes delete audit", async () => {
+    const { app, state } = await buildApp();
+
+    const response = await app.inject({
+      method: "DELETE",
+      url: `/api/expense-standards/${STANDARD_ID}`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(state.standards[0].enabled).toBe(false);
+    expect(state.auditLogs.at(-1)).toMatchObject({
+      action: "EXPENSE_STANDARD_DELETED",
+    });
+
+    await app.close();
+  });
+
+  it("blocks write operations without system.settings permission", async () => {
+    const { app } = await buildApp({
+      actor: {
+        id: ACTOR_ID,
+        permissionCodes: ["expense.submit"],
+      },
+    });
+
+    const response = await app.inject({
+      method: "POST",
+      url: "/api/expense-standards",
+      payload: {
+        expenseTypeId: EXPENSE_TYPE_ID,
+        name: "受限写操作",
+        maxAmount: "30.00",
+      },
+    });
+
+    expect(response.statusCode).toBe(403);
+    await app.close();
+  });
+});
diff --git a/server/tests/unit/routes/reimbursements.expense-standards.test.js b/server/tests/unit/routes/reimbursements.expense-standards.test.js
new file mode 100644
index 00000000..03322132
--- /dev/null
+++ b/server/tests/unit/routes/reimbursements.expense-standards.test.js
@@ -0,0 +1,363 @@
+const Fastify = require("fastify");
+
+const { AppError } = require("../../../src/utils/AppError");
+const budgetPool = require("../../../src/services/budgetPool");
+const feeControl = require("../../../src/services/feeControl");
+const notifications = require("../../../src/services/notifications");
+
+const resolveApplicableBudgetPoolByContextMock = vi.fn();
+const resolveEntityPrecheckMock = vi.fn();
+const createRiskFlagsFromPrecheckMock = vi.fn();
+const resolveRecipientsForAssigneeMock = vi.fn();
+const createNotificationsWithRecordsMock = vi.fn(async () => []);
+
+const originalResolveApplicableBudgetPoolByContext = budgetPool.resolveApplicableBudgetPoolByContext;
+const originalResolveEntityPrecheck = feeControl.resolveEntityPrecheck;
+const originalCreateRiskFlagsFromPrecheck = feeControl.createRiskFlagsFromPrecheck;
+const originalResolveRecipientsForAssignee = notifications.resolveRecipientsForAssignee;
+const originalCreateNotificationsWithRecords = notifications.createNotificationsWithRecords;
+
+budgetPool.resolveApplicableBudgetPoolByContext = resolveApplicableBudgetPoolByContextMock;
+feeControl.resolveEntityPrecheck = resolveEntityPrecheckMock;
+feeControl.createRiskFlagsFromPrecheck = createRiskFlagsFromPrecheckMock;
+notifications.resolveRecipientsForAssignee = resolveRecipientsForAssigneeMock;
+notifications.createNotificationsWithRecords = createNotificationsWithRecordsMock;
+
+delete require.cache[require.resolve("../../../src/routes/reimbursements")];
+const reimbursementRoutes = require("../../../src/routes/reimbursements");
+
+const REIMBURSEMENT_ID = "11111111-1111-4111-8111-111111111111";
+const EMPLOYEE_ID = "22222222-2222-4222-8222-222222222222";
+const DEPARTMENT_ID = "33333333-3333-4333-8333-333333333333";
+
+function buildPrecheck(overrides = {}) {
+  return {
+    entityType: "reimbursement",
+    entityId: REIMBURSEMENT_ID,
+    decision: "pass",
+    matchedBudgetControlRule: null,
+    budgetHint: null,
+    standardChecks: [],
+    warnings: [],
+    blockingReasons: [],
+    riskFlags: [],
+    nextActions: ["可直接提交"],
+    ...overrides,
+  };
+}
+
+async function buildApp(options = {}) {
+  const app = Fastify();
+  const actor = options.actor ?? {
+    id: EMPLOYEE_ID,
+    department_id: DEPARTMENT_ID,
+    roleCodes: [],
+    permissionCodes: ["expense.submit"],
+  };
+  const reimbursement = options.reimbursement ?? {
+    id: REIMBURSEMENT_ID,
+    owner_id: EMPLOYEE_ID,
+    submitter_id: EMPLOYEE_ID,
+    department_id: DEPARTMENT_ID,
+    reimbursement_date: new Date("2026-04-08T00:00:00.000Z"),
+    status: "draft",
+    form_number: "BX-20260408-001",
+    total_amount: "180.00",
+  };
+  const state = {
+    workflowInstanceCreatePayload: null,
+  };
+
+  const tx = {
+    $queryRaw: vi.fn(async () => [reimbursement]),
+    workflowInstance: {
+      findFirst: vi.fn(async () => null),
+      create: vi.fn(async ({ data, select }) => {
+        state.workflowInstanceCreatePayload = data;
+        return {
+          id: "44444444-4444-4444-8444-444444444444",
+          current_step_id: data.current_step_id,
+          ...(select?.current_step_id ? {} : {}),
+        };
+      }),
+    },
+    invoicePool: {
+      count: vi.fn(async () => 1),
+    },
+    budgetLedgerEntry: {
+      create: vi.fn(async () => ({ id: "budget-ledger-1" })),
+    },
+    budgetPool: {
+      update: vi.fn(async () => ({ id: "budget-pool-1" })),
+    },
+    approvalRule: {
+      findFirst: vi.fn(async () => ({
+        id: "55555555-5555-4555-8555-555555555555",
+        level1_role: "finance",
+        level2_role: null,
+        level3_role: null,
+        priority: 1,
+      })),
+    },
+    workflowDefinition: {
+      findFirst: vi.fn(async () => ({
+        id: "66666666-6666-4666-8666-666666666666",
+      })),
+    },
+    reimbursementForm: {
+      update: vi.fn(async () => ({
+        id: reimbursement.id,
+      })),
+    },
+    workflowTask: {
+      create: vi.fn(async () => ({
+        id: "77777777-7777-4777-8777-777777777777",
+        assignee_id: null,
+        assignee_role: "finance",
+      })),
+    },
+    workflowHistory: {
+      create: vi.fn(async () => ({ id: "history-1" })),
+    },
+    auditLog: {
+      create: vi.fn(async () => ({ id: "audit-1" })),
+    },
+  };
+
+  const prisma = {
+    $transaction: vi.fn(async (callback) => callback(tx)),
+    reimbursementForm: {
+      findUnique: vi.fn(async () => ({
+        id: reimbursement.id,
+        form_number: reimbursement.form_number,
+        total_amount: reimbursement.total_amount,
+        owner: {
+          id: EMPLOYEE_ID,
+          name: "申请人",
+        },
+      })),
+    },
+  };
+
+  app.decorate("prisma", prisma);
+  app.decorate("config", {
+    appTimezone: "Asia/Shanghai",
+    budgetControlMode: "warn",
+    imNotifierEnabled: false,
+    emailEnabled: false,
+  });
+  app.decorate("hasPermission", (employee, permissionCode) => {
+    const permissionCodes = employee?.permissionCodes ?? [];
+    return permissionCodes.includes("*") || permissionCodes.includes(permissionCode);
+  });
+  app.decorate("requirePermission", (permissionCode) => async (request) => {
+    request.employee = actor;
+    const permissionCodes = actor.permissionCodes ?? [];
+    if (!permissionCodes.includes("*") && !permissionCodes.includes(permissionCode)) {
+      throw new AppError({
+        code: "PERM_001",
+        message: "无权限",
+        statusCode: 403,
+      });
+    }
+  });
+  app.setErrorHandler((error, request, reply) => {
+    reply.status(error.statusCode || 500).send({
+      requestId: request.id,
+      error: {
+        code: error.code || "SYS_001",
+        message: error.message,
+        details: error.details ?? null,
+      },
+    });
+  });
+
+  await app.register(reimbursementRoutes, { prefix: "/api" });
+  return { app, prisma, tx, state };
+}
+
+describe("reimbursements routes expense standard integration", () => {
+  afterAll(() => {
+    budgetPool.resolveApplicableBudgetPoolByContext = originalResolveApplicableBudgetPoolByContext;
+    feeControl.resolveEntityPrecheck = originalResolveEntityPrecheck;
+    feeControl.createRiskFlagsFromPrecheck = originalCreateRiskFlagsFromPrecheck;
+    notifications.resolveRecipientsForAssignee = originalResolveRecipientsForAssignee;
+    notifications.createNotificationsWithRecords = originalCreateNotificationsWithRecords;
+  });
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    resolveApplicableBudgetPoolByContextMock.mockResolvedValue(null);
+    createRiskFlagsFromPrecheckMock.mockResolvedValue([]);
+    resolveRecipientsForAssigneeMock.mockResolvedValue([]);
+  });
+
+  it("returns standardChecks from reimbursement precheck", async () => {
+    resolveEntityPrecheckMock.mockResolvedValue(
+      buildPrecheck({
+        decision: "warn",
+        standardChecks: [
+          {
+            itemId: "item-1",
+            expenseTypeId: "88888888-8888-4888-8888-888888888888",
+            expenseTypeName: "交通费",
+            amount: "180.00",
+            standardId: "99999999-9999-4999-8999-999999999999",
+            standardName: "交通费上限",
+            maxAmount: "120.00",
+            perUnit: "item",
+            controlMode: "warn",
+            scopeType: "global",
+            scopeKey: null,
+            exceeded: true,
+            exceededAmount: "60.00",
+          },
+        ],
+      }),
+    );
+
+    const { app } = await buildApp();
+
+    const response = await app.inject({
+      method: "POST",
+      url: `/api/reimbursements/${REIMBURSEMENT_ID}/precheck`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(response.json().data.standardChecks).toEqual([
+      expect.objectContaining({
+        itemId: "item-1",
+        controlMode: "warn",
+        exceededAmount: "60.00",
+      }),
+    ]);
+    expect(resolveEntityPrecheckMock).toHaveBeenCalledWith(
+      expect.objectContaining({
+        entityType: "reimbursement",
+        entityId: REIMBURSEMENT_ID,
+        actorDepartmentId: DEPARTMENT_ID,
+      }),
+    );
+
+    await app.close();
+  });
+
+  it("blocks submit with 400 and standardViolations when block standard is exceeded", async () => {
+    resolveEntityPrecheckMock.mockResolvedValue(
+      buildPrecheck({
+        decision: "block",
+        blockingReasons: [
+          {
+            code: "expense_standard_blocked",
+            title: "费用标准超限",
+            detail: "交通费超出上限",
+          },
+        ],
+        standardChecks: [
+          {
+            itemId: "item-block",
+            expenseTypeId: "88888888-8888-4888-8888-888888888888",
+            expenseTypeName: "交通费",
+            amount: "260.00",
+            standardId: "99999999-9999-4999-8999-999999999999",
+            standardName: "交通费阻断上限",
+            maxAmount: "120.00",
+            perUnit: "item",
+            controlMode: "block",
+            scopeType: "global",
+            scopeKey: null,
+            exceeded: true,
+            exceededAmount: "140.00",
+          },
+        ],
+      }),
+    );
+
+    const { app, tx } = await buildApp();
+
+    const response = await app.inject({
+      method: "POST",
+      url: `/api/reimbursements/${REIMBURSEMENT_ID}/submit`,
+    });
+
+    expect(response.statusCode).toBe(400);
+    expect(response.json().error).toEqual(
+      expect.objectContaining({
+        code: "VALID_001",
+        details: expect.objectContaining({
+          standardViolations: [
+            expect.objectContaining({
+              itemId: "item-block",
+              controlMode: "block",
+            }),
+          ],
+        }),
+      }),
+    );
+    expect(tx.workflowInstance.create).not.toHaveBeenCalled();
+
+    await app.close();
+  });
+
+  it("allows warn submit and persists standardViolations into workflow context", async () => {
+    resolveEntityPrecheckMock.mockResolvedValue(
+      buildPrecheck({
+        decision: "warn",
+        warnings: [
+          {
+            code: "expense_standard_warning",
+            title: "费用标准预警",
+            detail: "交通费超出上限",
+          },
+        ],
+        standardChecks: [
+          {
+            itemId: "item-warn",
+            expenseTypeId: "88888888-8888-4888-8888-888888888888",
+            expenseTypeName: "交通费",
+            amount: "180.00",
+            standardId: "99999999-9999-4999-8999-999999999999",
+            standardName: "交通费预警上限",
+            maxAmount: "120.00",
+            perUnit: "item",
+            controlMode: "warn",
+            scopeType: "department",
+            scopeKey: DEPARTMENT_ID,
+            exceeded: true,
+            exceededAmount: "60.00",
+          },
+        ],
+      }),
+    );
+
+    const { app, state } = await buildApp();
+
+    const response = await app.inject({
+      method: "POST",
+      url: `/api/reimbursements/${REIMBURSEMENT_ID}/submit`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(response.json().data).toEqual(
+      expect.objectContaining({
+        reimbursementId: REIMBURSEMENT_ID,
+        status: "reviewing",
+        precheckDecision: "warn",
+        standardWarnings: [
+          expect.objectContaining({
+            itemId: "item-warn",
+            controlMode: "warn",
+          }),
+        ],
+      }),
+    );
+    expect(state.workflowInstanceCreatePayload?.context_data?.standardViolations).toEqual([
+      expect.objectContaining({
+        itemId: "item-warn",
+        exceededAmount: "60.00",
+      }),
+    ]);
+
+    await app.close();
+  });
+});
diff --git a/server/tests/unit/routes/workflow.task-detail.test.js b/server/tests/unit/routes/workflow.task-detail.test.js
new file mode 100644
index 00000000..64589007
--- /dev/null
+++ b/server/tests/unit/routes/workflow.task-detail.test.js
@@ -0,0 +1,134 @@
+const Fastify = require("fastify");
+
+const workflowRoutes = require("../../../src/routes/workflow");
+
+const TASK_ID = "11111111-1111-4111-8111-111111111111";
+const EMPLOYEE_ID = "22222222-2222-4222-8222-222222222222";
+
+async function buildApp(options = {}) {
+  const app = Fastify();
+  const actor = options.actor ?? {
+    id: EMPLOYEE_ID,
+    roleCodes: [],
+    permissionCodes: [],
+  };
+
+  const prisma = {
+    delegationGrant: {
+      findMany: vi.fn(async () => []),
+    },
+    workflowTask: {
+      findFirst: vi.fn(async () => ({
+        id: TASK_ID,
+        instance_id: "33333333-3333-4333-8333-333333333333",
+        step_id: "approval_1_finance",
+        step_name: "财务审批",
+        assignee_id: EMPLOYEE_ID,
+        assignee_role: null,
+        status: "completed",
+        outcome: "approved",
+        comment: "已核验",
+        created_at: new Date("2026-04-08T08:00:00.000Z"),
+        completed_at: new Date("2026-04-08T09:00:00.000Z"),
+        workflow_instance: {
+          id: "33333333-3333-4333-8333-333333333333",
+          entity_type: "reimbursement",
+          entity_id: "44444444-4444-4444-8444-444444444444",
+          current_status: "pending",
+          current_step_id: "approval_1_finance",
+          context_data: {
+            standardViolations: [
+              {
+                itemId: "item-1",
+                expenseTypeName: "交通费",
+                amount: "180.00",
+                standardName: "交通费上限",
+                maxAmount: "120.00",
+                exceededAmount: "60.00",
+                controlMode: "warn",
+              },
+            ],
+          },
+          started_at: new Date("2026-04-08T08:00:00.000Z"),
+          completed_at: null,
+          reimbursement_form: {
+            id: "44444444-4444-4444-8444-444444444444",
+            form_number: "BX-20260408-001",
+            status: "reviewing",
+            total_amount: "180.00",
+            reimbursement_date: new Date("2026-04-08T00:00:00.000Z"),
+            description: "测试报销",
+            owner: {
+              id: EMPLOYEE_ID,
+              employee_no: "E001",
+              name: "申请人",
+            },
+            submitter: {
+              id: EMPLOYEE_ID,
+              employee_no: "E001",
+              name: "申请人",
+            },
+            items: [],
+          },
+          leave_request: null,
+          purchase_request: null,
+          travel_request: null,
+        },
+      })),
+      findUnique: vi.fn(async () => ({
+        id: TASK_ID,
+      })),
+    },
+    workflowHistory: {
+      findMany: vi.fn(async () => []),
+    },
+  };
+
+  app.decorate("prisma", prisma);
+  app.decorate("config", {
+    imNotifierEnabled: false,
+    emailEnabled: false,
+  });
+  app.decorate("authenticate", async (request) => {
+    request.employee = actor;
+  });
+  app.decorate("requirePermission", () => async (request) => {
+    request.employee = actor;
+  });
+  app.decorate("assertEntityPermission", () => {});
+  app.setErrorHandler((error, request, reply) => {
+    reply.status(error.statusCode || 500).send({
+      requestId: request.id,
+      error: {
+        code: error.code || "SYS_001",
+        message: error.message,
+        details: error.details ?? null,
+      },
+    });
+  });
+
+  await app.register(workflowRoutes, { prefix: "/api" });
+  return { app, prisma };
+}
+
+describe("workflow task detail route", () => {
+  it("returns reimbursement workflow contextData.standardViolations", async () => {
+    const { app } = await buildApp();
+
+    const response = await app.inject({
+      method: "GET",
+      url: `/api/workflow/tasks/${TASK_ID}`,
+    });
+
+    expect(response.statusCode).toBe(200);
+    expect(response.json().data.workflowInstance.contextData.standardViolations).toEqual([
+      expect.objectContaining({
+        itemId: "item-1",
+        controlMode: "warn",
+        exceededAmount: "60.00",
+      }),
+    ]);
+
+    await app.close();
+  });
+});
diff --git a/server/tests/unit/services/expenseStandards.check.test.js b/server/tests/unit/services/expenseStandards.check.test.js
new file mode 100644
index 00000000..96c21a8d
--- /dev/null
+++ b/server/tests/unit/services/expenseStandards.check.test.js
@@ -0,0 +1,306 @@
+const {
+  checkExpenseStandards,
+  mergeReimbursementPrecheck,
+} = require("../../../src/services/feeControl");
+
+const REIMBURSEMENT_ID = "11111111-1111-4111-8111-111111111111";
+const EXPENSE_TYPE_ID = "22222222-2222-4222-8222-222222222222";
+const OTHER_EXPENSE_TYPE_ID = "33333333-3333-4333-8333-333333333333";
+const DEPARTMENT_ID = "44444444-4444-4444-8444-444444444444";
+
+function buildTx(options = {}) {
+  return {
+    reimbursementForm: {
+      findUnique: vi.fn().mockResolvedValue(
+        options.reimbursement ?? {
+          id: REIMBURSEMENT_ID,
+          department_id: DEPARTMENT_ID,
+          items: [
+            {
+              id: "item-1",
+              expense_type_id: EXPENSE_TYPE_ID,
+              amount: "150.00",
+              expense_type: {
+                id: EXPENSE_TYPE_ID,
+                name: "交通费",
+              },
+            },
+          ],
+        },
+      ),
+    },
+    expenseStandard: {
+      findMany: vi.fn().mockResolvedValue(
+        options.standards ?? [
+          {
+            id: "standard-global",
+            expense_type_id: EXPENSE_TYPE_ID,
+            name: "交通费全局上限",
+            max_amount: "120.00",
+            per_unit: "item",
+            control_mode: "warn",
+            scope_type: "global",
+            scope_key: null,
+            created_at: new Date("2026-04-08T09:00:00.000Z"),
+          },
+        ],
+      ),
+    },
+  };
+}
+
+describe("checkExpenseStandards", () => {
+  it("prefers department scoped standard over global standard", async () => {
+    const tx = buildTx({
+      standards: [
+        {
+          id: "standard-global",
+          expense_type_id: EXPENSE_TYPE_ID,
+          name: "交通费全局上限",
+          max_amount: "120.00",
+          per_unit: "item",
+          control_mode: "warn",
+          scope_type: "global",
+          scope_key: null,
+          created_at: new Date("2026-04-08T09:00:00.000Z"),
+        },
+        {
+          id: "standard-department",
+          expense_type_id: EXPENSE_TYPE_ID,
+          name: "交通费部门上限",
+          max_amount: "100.00",
+          per_unit: "item",
+          control_mode: "block",
+          scope_type: "department",
+          scope_key: DEPARTMENT_ID,
+          created_at: new Date("2026-04-08T10:00:00.000Z"),
+        },
+      ],
+    });
+
+    const result = await checkExpenseStandards(tx, { reimbursementId: REIMBURSEMENT_ID });
+
+    expect(result).toEqual([
+      expect.objectContaining({
+        standardId: "standard-department",
+        standardName: "交通费部门上限",
+        controlMode: "block",
+        exceeded: true,
+        exceededAmount: "50.00",
+      }),
+    ]);
+  });
+
+  it("returns warn level check without blocking when amount only exceeds warn standard", async () => {
+    const tx = buildTx();
+    const result = await checkExpenseStandards(tx, { reimbursementId: REIMBURSEMENT_ID });
+    const merged = mergeReimbursementPrecheck(
+      {
+        entityType: "reimbursement",
+        entityId: REIMBURSEMENT_ID,
+        decision: "pass",
+        matchedBudgetControlRule: null,
+        budgetHint: null,
+        standardChecks: [],
+        warnings: [],
+        blockingReasons: [],
+        riskFlags: [],
+        nextActions: ["可直接提交"],
+      },
+      result,
+    );
+
+    expect(result[0]).toMatchObject({
+      controlMode: "warn",
+      exceeded: true,
+    });
+    expect(merged.decision).toBe("warn");
+    expect(merged.warnings).toHaveLength(1);
+    expect(merged.blockingReasons).toHaveLength(0);
+  });
+
+  it("turns decision into block when exceeded item hits block standard", async () => {
+    const tx = buildTx({
+      standards: [
+        {
+          id: "standard-block",
+          expense_type_id: EXPENSE_TYPE_ID,
+          name: "交通费阻断上限",
+          max_amount: "120.00",
+          per_unit: "item",
+          control_mode: "block",
+          scope_type: "global",
+          scope_key: null,
+          created_at: new Date("2026-04-08T09:00:00.000Z"),
+        },
+      ],
+    });
+
+    const result = await checkExpenseStandards(tx, { reimbursementId: REIMBURSEMENT_ID });
+    const merged = mergeReimbursementPrecheck(
+      {
+        entityType: "reimbursement",
+        entityId: REIMBURSEMENT_ID,
+        decision: "pass",
+        matchedBudgetControlRule: null,
+        budgetHint: null,
+        standardChecks: [],
+        warnings: [],
+        blockingReasons: [],
+        riskFlags: [],
+        nextActions: ["可直接提交"],
+      },
+      result,
+    );
+
+    expect(result[0].controlMode).toBe("block");
+    expect(merged.decision).toBe("block");
+    expect(merged.blockingReasons).toHaveLength(1);
+  });
+
+  it("skips items that do not match any standard", async () => {
+    const tx = buildTx({
+      reimbursement: {
+        id: REIMBURSEMENT_ID,
+        department_id: DEPARTMENT_ID,
+        items: [
+          {
+            id: "item-2",
+            expense_type_id: OTHER_EXPENSE_TYPE_ID,
+            amount: "88.00",
+            expense_type: {
+              id: OTHER_EXPENSE_TYPE_ID,
+              name: "办公费",
+            },
+          },
+        ],
+      },
+      standards: [
+        {
+          id: "standard-global",
+          expense_type_id: EXPENSE_TYPE_ID,
+          name: "交通费全局上限",
+          max_amount: "120.00",
+          per_unit: "item",
+          control_mode: "warn",
+          scope_type: "global",
+          scope_key: null,
+          created_at: new Date("2026-04-08T09:00:00.000Z"),
+        },
+      ],
+    });
+
+    const result = await checkExpenseStandards(tx, { reimbursementId: REIMBURSEMENT_ID });
+
+    expect(result).toEqual([]);
+  });
+
+  it("keeps perUnit as display metadata without any day or trip aggregation", async () => {
+    const tx = buildTx({
+      reimbursement: {
+        id: REIMBURSEMENT_ID,
+        department_id: DEPARTMENT_ID,
+        items: [
+          {
+            id: "item-1",
+            expense_type_id: EXPENSE_TYPE_ID,
+            amount: "300.00",
+            expense_type: {
+              id: EXPENSE_TYPE_ID,
+              name: "交通费",
+            },
+          },
+          {
+            id: "item-2",
+            expense_type_id: EXPENSE_TYPE_ID,
+            amount: "300.00",
+            expense_type: {
+              id: EXPENSE_TYPE_ID,
+              name: "交通费",
+            },
+          },
+        ],
+      },
+      standards: [
+        {
+          id: "standard-trip",
+          expense_type_id: EXPENSE_TYPE_ID,
+          name: "差旅交通上限",
+          max_amount: "250.00",
+          per_unit: "trip",
+          control_mode: "warn",
+          scope_type: "global",
+          scope_key: null,
+          created_at: new Date("2026-04-08T09:00:00.000Z"),
+        },
+      ],
+    });
+
+    const result = await checkExpenseStandards(tx, { reimbursementId: REIMBURSEMENT_ID });
+
+    expect(result).toHaveLength(2);
+    expect(result[0]).toMatchObject({
+      perUnit: "trip",
+      exceededAmount: "50.00",
+    });
+    expect(result[1]).toMatchObject({
+      perUnit: "trip",
+      exceededAmount: "50.00",
+    });
+  });
+
+  it("preserves manual_review decision priority over warn and under block", () => {
+    const mergedWarn = mergeReimbursementPrecheck(
+      {
+        entityType: "reimbursement",
+        entityId: REIMBURSEMENT_ID,
+        decision: "manual_review",
+        matchedBudgetControlRule: null,
+        budgetHint: null,
+        standardChecks: [],
+        warnings: [],
+        blockingReasons: [],
+        riskFlags: [{ code: "budget_exceeded", level: "high", title: "预算超用", detail: "需要复核" }],
+        nextActions: ["允许提交，但会生成待复核风险项"],
+      },
+      [
+        {
+          itemId: "item-1",
+          expenseTypeId: EXPENSE_TYPE_ID,
+          expenseTypeName: "交通费",
+          amount: "150.00",
+          standardId: "standard-global",
+          standardName: "交通费全局上限",
+          maxAmount: "120.00",
+          perUnit: "item",
+          controlMode: "warn",
+          scopeType: "global",
+          scopeKey: null,
+          exceeded: true,
+          exceededAmount: "30.00",
+        },
+      ],
+    );
+
+    const mergedBlock = mergeReimbursementPrecheck(mergedWarn, [
+      {
+        itemId: "item-2",
+        expenseTypeId: EXPENSE_TYPE_ID,
+        expenseTypeName: "交通费",
+        amount: "200.00",
+        standardId: "standard-block",
+        standardName: "交通费阻断上限",
+        maxAmount: "120.00",
+        perUnit: "item",
+        controlMode: "block",
+        scopeType: "global",
+        scopeKey: null,
+        exceeded: true,
+        exceededAmount: "80.00",
+      },
+    ]);
+
+    expect(mergedWarn.decision).toBe("manual_review");
+    expect(mergedBlock.decision).toBe("block");
+  });
+});