diff --git a/src/App.vue b/src/App.vue
index 2dde1e1..75cc956 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, reactive, onMounted } from "vue";
+import { ref, reactive, computed, onMounted } from "vue";
 import layout from "./components/layout.vue";
 import { useRouter } from "vue-router";
 import config from "@/assets/config/host.config";
@@ -9,6 +9,9 @@ import { Message } from "view-ui-plus";
 
 const router = useRouter();
 const isLogin = ref(false);
+// 嵌入页旁路（/embed/**，iframe 免签嵌入）：子应用 Drawer 里打开，带不了本应用 CAS 会话，
+// 也不该出现菜单壳。判定用路由前缀而非 query 标记——刷新/直链/分享均稳定
+const isEmbed = computed(() => router.currentRoute.value.path.startsWith("/embed/"));
 const layoutData = reactive({
     appName: "流程中心",
     baseHost: config.baseHost,
@@ -20,6 +23,14 @@ const layoutData = reactive({
 });
 
 onMounted(async () => {
+    // 首次导航异步完成：mount 时 currentRoute 可能仍是初始 "/"，先等路由就绪再判嵌入前缀，
+    // 否则直链 /#/embed/* 会在旁路前误发鉴权请求
+    await router.isReady();
+    // 嵌入页：跳过两个鉴权请求（失败会弹错误 Message 且渲染带菜单壳的 layout，嵌入场景均不可接受）
+    if (isEmbed.value) {
+        isLogin.value = true;
+        return;
+    }
     try {
         // 1. 获取当前用户信息
         const user: any = await baseApi.getUserInfo().send();
@@ -75,12 +86,16 @@ onMounted(async () => {
 </script>
 
 <template>
-    <layout v-if="isLogin" :layoutData="layoutData" />
-    <div v-if="isLogin" class="base-wrap-main" :class="{ 'alone-page': layoutData.isAlone }">
-        <div class="main-wrapper">
-            <router-view />
+    <!-- 嵌入页：裸渲染，不套 layout 与 base-wrap-main（嵌入页自己管理样式与滚动） -->
+    <router-view v-if="isEmbed" />
+    <template v-else>
+        <layout v-if="isLogin" :layoutData="layoutData" />
+        <div v-if="isLogin" class="base-wrap-main" :class="{ 'alone-page': layoutData.isAlone }">
+            <div class="main-wrapper">
+                <router-view />
+            </div>
         </div>
-    </div>
+    </template>
 </template>
 
 <style lang="scss">
diff --git a/src/router/routes.ts b/src/router/routes.ts
index d52b2aa..dd2c4fc 100644
--- a/src/router/routes.ts
+++ b/src/router/routes.ts
@@ -84,6 +84,14 @@ const routes: RouteRecordRaw[] = [
         component: () => import("@/views/flow/admin/Routers.vue"),
         meta: { title: "条件路由", modId: 106 },
     },
+    {
+        // 办件进度嵌入页（iframe 免签嵌入，App.vue 对 /embed/* 前缀旁路 CAS 与 layout）：
+        // 不挂菜单、无 parentId（子应用 Drawer 内打开，非管理面导航）；query.token 必填
+        path: "/embed/instance",
+        name: "flow_embed_instance",
+        component: () => import("@/views/flow/EmbedInstance.vue"),
+        meta: { title: "办件进度" },
+    },
     { path: "/", redirect: "/workbench" },
     // 兜底：UserMsg jumpPath / bizUrl 等外部深链若落到未登记路由，避免 no-match 静默空白页
     { path: "/:pathMatch(.*)*", redirect: "/workbench" },
diff --git a/src/views/flow/EmbedInstance.vue b/src/views/flow/EmbedInstance.vue
new file mode 100644
index 0000000..0610d58
--- /dev/null
+++ b/src/views/flow/EmbedInstance.vue
@@ -0,0 +1,169 @@
+<script setup lang="ts">
+// 办件进度嵌入页（iframe 免签嵌入，2026-10-03 方案）：子应用 Drawer 里以 iframe 打开本页，
+// 展示"进度 + 流程示意图"，零样式复制、单点维护。全程零 CAS 交互——数据走 /open/flow/embed/data
+// 免签端点（只认 token），示意图 token 两用（/open/flow/diagram/img 同一 token 出图）。
+// 本页只读（方案 §9）：不做任何审批动作；办理入口仍是待办站内信 → /task/:taskId 既有链路。
+import { ref, computed, onMounted } from "vue";
+import { useRoute } from "vue-router";
+import { INSTANCE_STATUS, INSTANCE_STATUS_COLOR } from "@/api/module/flow";
+import TraceTimeline from "@/views/flow/components/TraceTimeline.vue";
+import config from "@/assets/config/host.config";
+
+const route = useRoute();
+const detail = ref<any>(null);
+const loading = ref(true);
+/** 兜底空态：缺 token / 过期 / 加载失败，全页同一文案，不留白 */
+const expired = ref(false);
+
+/** 显示口径：dept=按科室 / user=按人员（缺省）。纯前端本地状态——嵌入页 URL 归子应用管，
+ *  改 query 会破坏 token 语义，不落 URL（与管理面 InstanceDetail 写 query 的动机不同） */
+const traceMode = ref<string>("user");
+function switchMode(val: string) {
+    traceMode.value = val;
+}
+
+const token = computed(() => String(route.query.token || ""));
+
+/** 示意图直嵌：同一 token 第二处消费（换图端点零改动即认领嵌入 token） */
+const diagramSrc = computed(
+    () => `${config.serviceHost}/open/flow/diagram/img?token=${token.value}`,
+);
+
+const snapshotRows = computed(() => {
+    const raw = detail.value?.bizSnapshot;
+    if (!raw) return [];
+    let obj: any = null;
+    try {
+        obj = typeof raw === "string" ? JSON.parse(raw) : raw;
+    } catch {
+        return [{ k: "摘要", v: String(raw) }];
+    }
+    if (obj && typeof obj === "object") {
+        return Object.entries(obj).map(([k, v]) => ({ k, v: v == null ? "-" : String(v) }));
+    }
+    return [];
+});
+
+/** 业务表单数据键值平铺（同 InstanceDetail 现状，不做精细表单渲染） */
+const formRows = computed(() => {
+    const raw = detail.value?.formDataJson;
+    if (raw === null || raw === undefined || raw === "") return [];
+    let obj: any = null;
+    try {
+        obj = typeof raw === "string" ? JSON.parse(raw) : raw;
+    } catch {
+        return [{ k: "表单原文", v: String(raw) }];
+    }
+    if (obj && typeof obj === "object" && !Array.isArray(obj)) {
+        return Object.entries(obj).map(([k, v]) => ({
+            k,
+            v: v == null ? "-"
+                : Array.isArray(v)
+                    ? (v.map((item: any) => item && typeof item === "object" ? item.fileName || JSON.stringify(item) : String(item)).join("、") || "-")
+                    : (typeof v === "object" ? JSON.stringify(v) : String(v)),
+        }));
+    }
+    return [{ k: "表单原文", v: String(raw) }];
+});
+
+function statusName(s: number) {
+    return INSTANCE_STATUS[s] || s;
+}
+
+function statusColor(s: number) {
+    return INSTANCE_STATUS_COLOR[s] || "gray";
+}
+
+// 免签端点不带任何会话，alova 拦截器（token 头/信封解析）一概用不上，原生 fetch 直取
+onMounted(async () => {
+    if (!token.value) {
+        expired.value = true;
+        loading.value = false;
+        return;
+    }
+    try {
+        const res = await fetch(`${config.serviceHost}/open/flow/embed/data?token=${token.value}`);
+        if (!res.ok) {
+            // 404=过期/伪造，与缺 token 同空态（不区分，不诱导探测）
+            expired.value = true;
+            return;
+        }
+        detail.value = await res.json();
+    } catch {
+        expired.value = true;
+    } finally {
+        loading.value = false;
+    }
+});
+</script>
+
+<template>
+    <div class="embed-page" v-if="detail">
+        <div class="head">
+            <span class="title">{{ detail.bizTitle }}</span>
+            <Tag :color="statusColor(detail.status)">{{ statusName(detail.status) }}</Tag>
+        </div>
+
+        <Card class="block" :bordered="false" dis-hover>
+            <template #title>基本信息</template>
+            <div class="grid">
+                <div class="row"><span class="k">流程</span><span>{{ detail.defCode }} v{{ detail.defVersion }}</span></div>
+                <div class="row"><span class="k">提交人</span><span>{{ detail.submitterName }}</span></div>
+                <div class="row"><span class="k">提交时间</span><span>{{ (detail.submitTime || "").replace("T", " ") }}</span></div>
+                <div class="row"><span class="k">办结时间</span><span>{{ (detail.finishTime || "").replace("T", " ") || "-" }}</span></div>
+            </div>
+            <template v-if="snapshotRows.length">
+                <Divider size="small" />
+                <div class="snapshot">
+                    <div v-for="row in snapshotRows" :key="row.k" class="row">
+                        <span class="k">{{ row.k }}</span>
+                        <span class="v">{{ row.v }}</span>
+                    </div>
+                </div>
+            </template>
+        </Card>
+
+        <Card class="block" :bordered="false" dis-hover>
+            <template #title>流程示意图</template>
+            <img class="diagram-img" :src="diagramSrc" alt="流程示意图" />
+        </Card>
+
+        <Card class="block" :bordered="false" dis-hover>
+            <template #title>
+                流程轨迹
+                <RadioGroup class="trace-mode" :model-value="traceMode" size="small" type="button" @on-change="switchMode">
+                    <Radio label="user">按人员</Radio>
+                    <Radio label="dept">按科室</Radio>
+                </RadioGroup>
+            </template>
+            <TraceTimeline :trace="detail.trace || []" :mode="traceMode" />
+        </Card>
+
+        <Card class="block" :bordered="false" dis-hover v-if="formRows.length">
+            <template #title>业务表单数据</template>
+            <div class="snapshot">
+                <div v-for="row in formRows" :key="row.k" class="row">
+                    <span class="k">{{ row.k }}</span>
+                    <span class="v">{{ row.v }}</span>
+                </div>
+            </div>
+        </Card>
+    </div>
+    <div v-else-if="loading" class="embed-page muted">加载中…</div>
+    <div v-else class="embed-page muted expired">链接已过期，请回到来源应用重新打开</div>
+</template>
+
+<style scoped>
+/* 根类不用 .page：UnoCSS 原子类同名会以更高优先级盖掉 scoped 的 padding（裸渲染无 layout 壳时暴露） */
+.embed-page { padding: 12px 16px; }
+.head { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
+.title { font-size: 16px; font-weight: 600; }
+.block { margin-bottom: 12px; }
+.grid .row { display: flex; padding: 3px 0; }
+.k { width: 120px; color: #888; flex-shrink: 0; }
+.v { white-space: pre-wrap; word-break: break-all; }
+.muted { color: #999; }
+.expired { padding: 48px 16px; text-align: center; }
+.diagram-img { max-width: 100%; }
+.trace-mode { float: right; font-weight: normal; margin-right: 16px; }
+</style>
diff --git a/vite.config.ts b/vite.config.ts
index e9e4815..85d189e 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -106,6 +106,13 @@ export default defineConfig(({ command, mode }: ConfigEnv): UserConfig => {
                     target: "http://localhost:8085",
                     changeOrigin: true,
                 },
+                // 免签面（嵌入页数据 /open/flow/embed/data、示意图 /open/flow/diagram/img）：
+                // 生产前后端同域（Caddy /flow-center 下同源相对路径即达），本地 dev 前后端分端口，
+                // 同理需代理——serviceHost 为空时浏览器请求落在 5173/8088 上无此路由
+                "/open": {
+                    target: "http://localhost:8085",
+                    changeOrigin: true,
+                },
             },
         },
         // css预处理器