diff --git a/src/views/flow/MyInstances.vue b/src/views/flow/MyInstances.vue
index 910407f..20d5d36 100644
--- a/src/views/flow/MyInstances.vue
+++ b/src/views/flow/MyInstances.vue
@@ -1,17 +1,18 @@
 <script setup lang="ts">
 // 我的办件（提交人视角）：列表 + 撤回/催办/详情
 import { ref } from "vue";
-import { useRouter } from "vue-router";
 import { Message, Tag } from "view-ui-plus";
 import MyConfirm from "@/components/MyConfirm";
 import TablePageAlovaNew from "@/components/TablePageAlovaNew.vue";
+import InstanceDrawer from "@/views/flow/components/InstanceDrawer.vue";
 import { OperatorEnum } from "@/types";
 import { flowApi, INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
 import { actionColumn } from "@/utils/tableActions";
 
-const router = useRouter();
 const tableRef = ref<InstanceType<typeof TablePageAlovaNew> | null>(null);
 const dataParams = ref<{ status?: number }>({ status: undefined });
+const drawerVisible = ref(false);
+const drawerInstanceId = ref<string | number>("");
 
 const columns = [
     { title: "序号", type: "index", width: 70, align: "center" },
@@ -24,7 +25,7 @@ const columns = [
     { title: "办结时间", width: 170, render: (h: any, p: any) => h("span", (p.row.finishTime || "").replace("T", " ") || "-") },
     actionColumn(
         [
-            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.instanceId}?pid=101`) },
+            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => openDetail(r.instanceId) },
             { key: "withdraw", label: "撤回", icon: "icon-yaohao", on: (r: any) => onWithdraw(r), disabledWhen: (r: any) => r.status !== 10, danger: true },
             { key: "urge", label: "催办", icon: "icon-fasong", on: (r: any) => onUrge(r), disabledWhen: (r: any) => r.status !== 10 },
         ],
@@ -40,6 +41,11 @@ function onSearch() {
     tableRef.value?.refreshData();
 }
 
+function openDetail(instanceId: string | number) {
+    drawerInstanceId.value = instanceId;
+    drawerVisible.value = true;
+}
+
 async function onWithdraw(row: any) {
     await MyConfirm({
         title: "撤回",
@@ -80,5 +86,6 @@ async function onUrge(row: any) {
             </div>
             <TablePageAlovaNew ref="tableRef" :dataApi="tableApi" :columns="columns" />
         </div>
+        <InstanceDrawer v-model="drawerVisible" :instance-id="drawerInstanceId" />
     </div>
 </template>
diff --git a/src/views/flow/Workbench.vue b/src/views/flow/Workbench.vue
index 6baf145..dec4433 100644
--- a/src/views/flow/Workbench.vue
+++ b/src/views/flow/Workbench.vue
@@ -5,12 +5,15 @@ import { ref } from "vue";
 import { useRouter } from "vue-router";
 import { Tag } from "view-ui-plus";
 import TablePageAlovaNew from "@/components/TablePageAlovaNew.vue";
+import InstanceDrawer from "@/views/flow/components/InstanceDrawer.vue";
 import { OperatorEnum } from "@/types";
 import { flowApi, TASK_STATUS, TASK_STATUS_COLOR, INSTANCE_STATUS } from "@/api/module/flow";
 import { actionColumn } from "@/utils/tableActions";
 
 const router = useRouter();
 const tab = ref<"todo" | "done" | "cc">("todo");
+const drawerVisible = ref(false);
+const drawerInstanceId = ref<string | number>("");
 const todoTableRef = ref<InstanceType<typeof TablePageAlovaNew> | null>(null);
 const doneTableRef = ref<InstanceType<typeof TablePageAlovaNew> | null>(null);
 const ccTableRef = ref<InstanceType<typeof TablePageAlovaNew> | null>(null);
@@ -43,7 +46,7 @@ const doneColumns = [
     { title: "意见", key: "opinion", minWidth: 120 },
     { title: "办理时间", width: 170, render: (h: any, p: any) => h("span", (p.row.handleTime || "").replace("T", " ")) },
     { title: "办件状态", width: 100, render: (h: any, p: any) => h("span", INSTANCE_STATUS[p.row.instanceStatus] || p.row.instanceStatus) },
-    actionColumn([{ key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.instanceId}?pid=100`) }], { mode: "text", width: 100, fixed: "right" }),
+    actionColumn([{ key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => openDetail(r.instanceId) }], { mode: "text", width: 100, fixed: "right" }),
 ];
 
 // 抄送行是 NOTIFY 知会（非任务）：无 taskId/status，直接跳办件详情
@@ -53,7 +56,7 @@ const ccColumns = [
     { title: "抄送节点", key: "nodeName", width: 160 },
     { title: "抄送时间", width: 170, render: (h: any, p: any) => h("span", (p.row.sentTime || "").replace("T", " ")) },
     { title: "办件状态", width: 100, render: (h: any, p: any) => h("span", INSTANCE_STATUS[p.row.instanceStatus] || p.row.instanceStatus || "-") },
-    actionColumn([{ key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.instanceId}?pid=100`) }], { mode: "text", width: 100, fixed: "right" }),
+    actionColumn([{ key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => openDetail(r.instanceId) }], { mode: "text", width: 100, fixed: "right" }),
 ];
 
 // dataApi 返回 Method（alova usePagination 负责发送与解包），不能调 .send()
@@ -65,6 +68,11 @@ function goHandle(row: any) {
     router.push(`/task/${row.taskId}?pid=100`);
 }
 
+function openDetail(instanceId: string | number) {
+    drawerInstanceId.value = instanceId;
+    drawerVisible.value = true;
+}
+
 // 两个内容区 v-show 共存，已办/抄送首次切换才拉取（保持原惰性加载行为）
 const doneLoaded = ref(false);
 const ccLoaded = ref(false);
@@ -100,5 +108,6 @@ function switchTab(name: string) {
                 <TablePageAlovaNew ref="ccTableRef" :dataApi="ccApi" :columns="ccColumns" :autoLoad="false" />
             </div>
         </div>
+        <InstanceDrawer v-model="drawerVisible" :instance-id="drawerInstanceId" />
     </div>
 </template>
diff --git a/src/views/flow/admin/Instances.vue b/src/views/flow/admin/Instances.vue
index bb6350c..097e643 100644
--- a/src/views/flow/admin/Instances.vue
+++ b/src/views/flow/admin/Instances.vue
@@ -1,17 +1,18 @@
 <script setup lang="ts">
 // 办件记录（管理端）：全校办件查询；CONDITION 判断失败挂起的办件在此"重跑路由"恢复
 import { ref } from "vue";
-import { useRouter } from "vue-router";
 import { Message, Tag } from "view-ui-plus";
 import MyConfirm from "@/components/MyConfirm";
 import { OperatorEnum } from "@/types";
 import TablePageAlovaNew from "@/components/TablePageAlovaNew.vue";
+import InstanceDrawer from "@/views/flow/components/InstanceDrawer.vue";
 import { flowApi, INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
 import { actionColumn } from "@/utils/tableActions";
 
-const router = useRouter();
 const tableRef = ref<InstanceType<typeof TablePageAlovaNew> | null>(null);
 const dataParams = ref<{ status?: number; keyword?: string }>({ status: undefined, keyword: "" });
+const drawerVisible = ref(false);
+const drawerInstanceId = ref<string | number>("");
 
 const columns = [
     { title: "序号", type: "index", width: 70, align: "center" },
@@ -23,7 +24,7 @@ const columns = [
     { title: "提交时间", width: 160, render: (h: any, p: any) => h("span", (p.row.submitTime || "").replace("T", " ")) },
     actionColumn(
         [
-            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => router.push(`/instance/${r.id}?pid=102`) },
+            { key: "detail", label: "详情", icon: "icon-browse", on: (r: any) => openDetail(r.id) },
             // 仅审批中的办件可挂条件分支节点；其余行置灰保位（重跑入口对非挂起办件是业务错提示）
             { key: "reroute", label: "重跑路由", icon: "icon-play", on: (r: any) => onReroute(r), disabledWhen: (r: any) => r.status !== 10 },
         ],
@@ -31,6 +32,11 @@ const columns = [
     ),
 ];
 
+function openDetail(instanceId: string | number) {
+    drawerInstanceId.value = instanceId;
+    drawerVisible.value = true;
+}
+
 /** 重跑路由（2026-09-24 §4.4）：重新调判断服务，成功即按出口续走；仍失败回业务错（办件继续挂起） */
 function onReroute(row: any) {
     MyConfirm({
@@ -73,5 +79,6 @@ function onSearch() {
             </div>
             <TablePageAlovaNew ref="tableRef" :dataApi="tableApi" :columns="columns" />
         </div>
+        <InstanceDrawer v-model="drawerVisible" :instance-id="drawerInstanceId" />
     </div>
 </template>
diff --git a/src/views/flow/components/InstanceBody.vue b/src/views/flow/components/InstanceBody.vue
index 7d23279..4855e87 100644
--- a/src/views/flow/components/InstanceBody.vue
+++ b/src/views/flow/components/InstanceBody.vue
@@ -3,7 +3,7 @@
 // 数据源同出 InstanceDetail（OpenEmbedController 复用管理面出参），展示层共用本组件，样式单点维护。
 // - embed（缺省，关键信息）：基本信息 / 办理进度三视图 / 流程示意图折叠 / 业务信息（只认 summaryFields）
 // - full（管理面，全量）：另有 流程信息五项（流程编码/流程版本/业务类型/业务编号/实例号）、
-//   业务表单数据折叠、业务详情链接；业务信息无 summaryFields 时回落 bizSnapshot 全键平铺（旧数据兜底）
+//   业务表单数据折叠、业务详情链接；业务信息只认子应用传递的 summaryFields，无则隐藏
 // 口径：人员/科室切换 emit('mode-change') 由管理面写 query 持久化（嵌入页 URL 归子应用管，忽略即可）。
 // 宽度：版式按嵌入场景调优（740 抽屉内容约 708px），full 下根类 max-width 封顶防宽屏拉散（见 .is-full）。
 import { ref, computed, onMounted, nextTick } from "vue";
@@ -14,7 +14,7 @@ import { fitDiagram } from "@/utils/diagramImg";
 const props = defineProps<{
     /** InstanceDetail 形状对象（两页同源） */
     detail: any;
-    /** true=管理面全量（流程信息/业务表单数据/业务详情/摘要回落）；缺省 embed 关键信息 */
+    /** true=管理面全量（流程信息/业务表单数据/业务详情）；缺省 embed 关键信息 */
     full?: boolean;
     /** 流程示意图地址（两页端点不同：token 图 / instanceId 图，由页面生成传入） */
     diagramSrc: string;
@@ -45,7 +45,8 @@ function onDiagramToggle(e: Event) {
     if ((e.target as HTMLDetailsElement).open) fitDiagram(diagramEl.value);
 }
 
-/** 业务信息唯一内容 = 约定键 bizSnapshot.summaryFields；形状错 / 无值 ⇒ []（full 再走回落） */
+/** 业务信息唯一内容 = 约定键 bizSnapshot.summaryFields；由发起流程的子应用决定展示字段与中文 label。
+ *  形状错 / 无值 ⇒ []，不再 fallback 平铺 bizSnapshot 原始英文 key（避免详情页出现 itemTitle / deptName 等）。 */
 const summaryFields = computed(() => {
     const raw = props.detail?.bizSnapshot;
     if (!raw) return [];
@@ -68,25 +69,8 @@ const summaryFields = computed(() => {
         }));
 });
 
-/** full 专用回落：无 summaryFields 时按 bizSnapshot 原始键平铺（旧数据/未适配子应用兜底） */
-const snapshotRows = computed(() => {
-    if (!props.full || summaryFields.value.length) return [];
-    const raw = props.detail?.bizSnapshot;
-    if (!raw) return [];
-    let obj: any = null;
-    try {
-        obj = typeof raw === "string" ? JSON.parse(raw) : raw;
-    } catch {
-        return [{ label: "摘要", value: String(raw) }];
-    }
-    if (obj && typeof obj === "object" && !Array.isArray(obj)) {
-        return Object.entries(obj).map(([k, v]) => ({ label: k, value: v == null ? "-" : String(v) }));
-    }
-    return [];
-});
-
-/** 业务信息最终渲染行：summaryFields 优先，full 无值回落 snapshotRows */
-const bizRows = computed(() => (summaryFields.value.length ? summaryFields.value : snapshotRows.value));
+/** 业务信息最终渲染行：只认子应用传递的 summaryFields */
+const bizRows = computed(() => summaryFields.value);
 
 /** full 专用：流程信息五项（专业字段只进管理面，嵌入页不外露） */
 const flowInfoRows = computed(() => {
@@ -429,7 +413,7 @@ onMounted(async () => {
             </div>
         </details>
 
-        <!-- 业务信息：summaryFields 优先；full 无值回落 bizSnapshot 平铺（嵌入页无值整块不显示） -->
+        <!-- 业务信息：只认子应用传递的 summaryFields，无值整块隐藏 -->
         <details v-if="bizRows.length" class="embed-fold">
             <summary>业务信息</summary>
             <div class="embed-fold-b">
diff --git a/src/views/flow/components/InstanceDrawer.vue b/src/views/flow/components/InstanceDrawer.vue
new file mode 100644
index 0000000..f0f964d
--- /dev/null
+++ b/src/views/flow/components/InstanceDrawer.vue
@@ -0,0 +1,99 @@
+<script setup lang="ts">
+// 办件详情抽屉（管理面列表页复用）：非 iframe，内部直接复用 InstanceBody（full 口径）。
+// 宽度与 Notice 审批记录抽屉对齐 740px；关闭后清空状态，下次打开重新加载。
+import { ref, computed, watch } from "vue";
+import { Drawer, Tag } from "view-ui-plus";
+import { flowApi, INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
+import InstanceBody from "@/views/flow/components/InstanceBody.vue";
+import config from "@/assets/config/host.config";
+
+const props = defineProps<{
+    modelValue: boolean;
+    instanceId?: string | number;
+}>();
+const emit = defineEmits<{ (e: "update:modelValue", val: boolean): void }>();
+
+const visible = computed({
+    get: () => props.modelValue,
+    set: (val) => emit("update:modelValue", val),
+});
+
+const loading = ref(false);
+const detail = ref<any>(null);
+const mode = ref("user");
+
+async function load() {
+    const id = props.instanceId;
+    if (!id || !visible.value) return;
+    loading.value = true;
+    try {
+        detail.value = await flowApi.detail(String(id)).send();
+    } finally {
+        loading.value = false;
+    }
+}
+
+watch(() => [props.instanceId, visible.value], load, { immediate: true });
+watch(visible, (val) => {
+    if (!val) detail.value = null;
+});
+
+function switchMode(val: string) {
+    mode.value = val;
+}
+
+const diagramSrc = computed(() => {
+    if (!detail.value?.instanceId) return "";
+    return `${config.serviceHost}/api/flow/diagram.png?instanceId=${detail.value.instanceId}&mode=${mode.value}`;
+});
+
+function openDiagram() {
+    if (!detail.value?.instanceId) return;
+    const url = `${window.location.origin}${import.meta.env.BASE_URL}#/diagram?instanceId=${detail.value.instanceId}&mode=${mode.value}`;
+    window.open(url, "_blank");
+}
+
+function statusName(s: number) {
+    return INSTANCE_STATUS[s] || s;
+}
+function statusColor(s: number) {
+    return INSTANCE_STATUS_COLOR[s] || "gray";
+}
+</script>
+
+<template>
+    <Drawer
+        v-model="visible"
+        :title="detail?.bizTitle || '办件详情'"
+        :width="740"
+        :transfer="false"
+        :styles="{ body: { padding: '0' } }"
+    >
+        <div v-if="loading" class="drawer-loading muted">加载中…</div>
+        <template v-else-if="detail">
+            <div class="drawer-head">
+                <Tag :color="statusColor(detail.status)">{{ statusName(detail.status) }}</Tag>
+            </div>
+            <div class="drawer-body">
+                <InstanceBody
+                    full
+                    :detail="detail"
+                    :diagram-src="diagramSrc"
+                    :initial-mode="mode"
+                    @mode-change="switchMode"
+                >
+                    <template #diagram-link>
+                        <a class="fold-link" @click.stop.prevent="openDiagram">查看大图</a>
+                    </template>
+                </InstanceBody>
+            </div>
+        </template>
+    </Drawer>
+</template>
+
+<style scoped>
+.drawer-head { padding: 12px 16px 8px; }
+.drawer-body { padding: 0 16px 16px; }
+.drawer-loading { padding: 48px 16px; text-align: center; }
+.fold-link { font-size: 12px; font-weight: normal; }
+</style>