diff --git a/frontend/scripts/verify-desktop-release.mjs b/frontend/scripts/verify-desktop-release.mjs
index adf48e35..93d2b92d 100644
--- a/frontend/scripts/verify-desktop-release.mjs
+++ b/frontend/scripts/verify-desktop-release.mjs
@@ -71,6 +71,13 @@ const verifyTauriConfig = async () => {
   assert(!/\bconnect-src\b[^;]*\bhttp:\b/.test(csp), "Tauri CSP must not allow broad http: API access.");
   assert(mainWindow?.minWidth === 1180, "Main desktop window must keep the minimum width at 1180.");
   assert(mainWindow?.minHeight === 760, "Main desktop window must keep the minimum height at 760.");
+  assert(mainWindow?.decorations === true, "Main desktop window must keep native window decorations enabled.");
+  assert(mainWindow?.titleBarStyle === "Overlay", "Main desktop window must use the macOS overlay title bar.");
+  assert(mainWindow?.hiddenTitle === true, "Main desktop window must hide the native title text.");
+  assert(
+    mainWindow?.trafficLightPosition?.x === 16 && mainWindow?.trafficLightPosition?.y === 18,
+    "Main desktop window must keep traffic light controls at x=16 y=18.",
+  );
 };
 
 const verifyCapabilities = async () => {
@@ -118,6 +125,9 @@ const verifyCapabilities = async () => {
           `${file}: notification permission ${identifier} is broader than the CTMS Desktop notification boundary.`,
         );
       }
+      if (identifier.startsWith("core:window:")) {
+        fail(`${file}: window permissions are not allowed; use Tauri overlay drag regions instead.`);
+      }
       if (identifier.startsWith("opener:")) {
         assert(identifier === "opener:allow-open-path", `${file}: opener permission ${identifier} is not allowed.`);
       }
diff --git a/frontend/src-tauri/tauri.conf.json b/frontend/src-tauri/tauri.conf.json
index 238281de..05c6042b 100644
--- a/frontend/src-tauri/tauri.conf.json
+++ b/frontend/src-tauri/tauri.conf.json
@@ -17,7 +17,11 @@
         "width": 1440,
         "height": 900,
         "minWidth": 1180,
-        "minHeight": 760
+        "minHeight": 760,
+        "decorations": true,
+        "titleBarStyle": "Overlay",
+        "hiddenTitle": true,
+        "trafficLightPosition": { "x": 16, "y": 18 }
       }
     ],
     "security": {
diff --git a/frontend/src/audit/export/auditExportService.ts b/frontend/src/audit/export/auditExportService.ts
index b6c1182b..5943e2ca 100644
--- a/frontend/src/audit/export/auditExportService.ts
+++ b/frontend/src/audit/export/auditExportService.ts
@@ -24,9 +24,17 @@ export const exportAuditCsv = async (events: AuditEvent[], options: AuditExportO
   const rows = formatAuditRows(events);
   const csv = buildCsv(rows);
   const blob = new Blob([csv], { type: "text/csv;charset=utf-8;" });
-  await saveFileWithFeedback({
-    suggestedName: options.fileName.endsWith(".csv") ? options.fileName : `${options.fileName}.csv`,
-    mimeType: "text/csv;charset=utf-8",
-    data: blob,
-  });
+  await saveFileWithFeedback(
+    {
+      suggestedName: options.fileName.endsWith(".csv") ? options.fileName : `${options.fileName}.csv`,
+      mimeType: "text/csv;charset=utf-8",
+      data: blob,
+    },
+    {
+      kind: "export",
+      title: "导出审计记录",
+      pendingDetail: "等待选择保存位置",
+      completedDetail: "导出文件已保存",
+    },
+  );
 };
diff --git a/frontend/src/components/DesktopLayout.vue b/frontend/src/components/DesktopLayout.vue
index 4095a5b1..001f8f12 100644
--- a/frontend/src/components/DesktopLayout.vue
+++ b/frontend/src/components/DesktopLayout.vue
@@ -4,8 +4,7 @@
       <header class="sidebar-head">
         <div class="sidebar-title-row">
           <div>
-            <p class="sidebar-kicker">Workspace</p>
-            <h1>{{ TEXT.common.appName }} Desktop</h1>
+            <h1>{{ TEXT.common.appName }}</h1>
           </div>
         </div>
 
@@ -64,7 +63,7 @@
         </section>
 
         <section v-if="adminNavigationItems.length" class="nav-section">
-          <div class="section-label">{{ TEXT.menu.admin }}</div>
+          <div class="section-label">{{ DESKTOP_ADMIN_SECTION_LABEL }}</div>
           <template v-for="item in adminNavigationItems" :key="item.path">
             <button
               v-if="!item.children?.length"
@@ -149,20 +148,10 @@
 
     <section class="desktop-main">
       <header class="desktop-toolbar">
-        <div class="toolbar-left">
-          <div class="history-controls">
-            <button class="icon-button" type="button" title="后退" @click="router.back()">
-              <el-icon><ArrowLeft /></el-icon>
-            </button>
-            <button class="icon-button" type="button" title="前进" @click="router.forward()">
-              <el-icon><ArrowRight /></el-icon>
-            </button>
-            <button class="icon-button" type="button" title="刷新当前视图" @click="refreshCurrentDesktopView">
-              <el-icon><Refresh /></el-icon>
-            </button>
-          </div>
-          <div class="breadcrumb-strip">
-            <span v-for="crumb in desktopBreadcrumbs" :key="crumb" class="breadcrumb-chip">{{ crumb }}</span>
+        <div class="toolbar-left" data-tauri-drag-region>
+          <div class="toolbar-context" data-tauri-drag-region>
+            <div class="toolbar-title" data-tauri-drag-region>{{ desktopToolbarTitle }}</div>
+            <div class="toolbar-subtitle" data-tauri-drag-region>{{ desktopToolbarSubtitle }}</div>
           </div>
         </div>
 
@@ -172,6 +161,48 @@
             <span>{{ desktopUpdateNoticeLabel }}</span>
           </button>
 
+          <el-popover placement="bottom-end" width="340" trigger="click" popper-class="desktop-activity-popover">
+            <template #reference>
+              <button class="icon-button activity-button" type="button" title="活动">
+                <el-badge v-if="desktopActivityBadgeCount > 0" :value="desktopActivityBadgeValue" class="activity-badge">
+                  <el-icon><Clock /></el-icon>
+                </el-badge>
+                <el-icon v-else><Clock /></el-icon>
+              </button>
+            </template>
+            <div class="activity-panel">
+              <div class="activity-head">
+                <div>
+                  <div class="panel-title">活动</div>
+                  <div class="panel-subtitle">上传、下载、导出与更新</div>
+                </div>
+                <button
+                  v-if="hasFinishedDesktopActivities"
+                  class="activity-clear"
+                  type="button"
+                  @click="clearFinishedDesktopActivities"
+                >
+                  清除已结束
+                </button>
+              </div>
+              <div v-if="desktopActivities.length" class="activity-list">
+                <div v-for="item in desktopActivities" :key="item.id" class="activity-item" :class="`is-${item.status}`">
+                  <span class="activity-mark" :class="`is-${item.status}`"></span>
+                  <span class="activity-body">
+                    <span class="activity-title">{{ item.title }}</span>
+                    <span class="activity-detail">{{ item.detail || desktopActivityStatusLabel(item.status) }}</span>
+                  </span>
+                  <span class="activity-meta">
+                    <span v-if="item.status === 'running' && item.progress !== null">{{ item.progress }}%</span>
+                    <span v-else>{{ desktopActivityStatusLabel(item.status) }}</span>
+                    <small>{{ formatDesktopActivityTime(item.updatedAt) }}</small>
+                  </span>
+                </div>
+              </div>
+              <div v-else class="activity-empty">暂无活动</div>
+            </div>
+          </el-popover>
+
           <button class="command-trigger" type="button" @click="openCommandPalette">
             <el-icon><Search /></el-icon>
             <span>命令</span>
@@ -367,8 +398,6 @@ import { computed, onBeforeUnmount, onMounted, ref, watch } from "vue";
 import { useRoute, useRouter } from "vue-router";
 import {
   ArrowDown,
-  ArrowLeft,
-  ArrowRight,
   Bell,
   Box,
   Calendar,
@@ -409,6 +438,13 @@ import {
   listenDesktopUpdateStatus,
   type DesktopUpdateStatusSnapshot,
 } from "../session/desktopUpdateManager";
+import {
+  clearFinishedDesktopActivities,
+  getDesktopActivities,
+  listenDesktopActivities,
+  type DesktopActivityItem,
+  type DesktopActivityStatus,
+} from "../session/desktopActivityCenter";
 import {
   DESKTOP_SERVER_URL_CHANGED_EVENT,
   getAppMetadata,
@@ -442,6 +478,7 @@ const router = useRouter();
 const route = useRoute();
 const desktopMetadata = getAppMetadata();
 const DESKTOP_WORKSPACE_TAB_CACHE_MAX = 12;
+const DESKTOP_ADMIN_SECTION_LABEL = "系统管理";
 const isAdmin = computed(() => !!auth.user?.is_admin);
 const projectRole = computed(() => study.currentStudyRole || (study.currentStudy as any)?.role_in_study || "");
 const canAccessAdminPermissions = computed(() => isAdmin.value || projectRole.value === "PM");
@@ -456,6 +493,7 @@ const profileDialogVisible = ref(false);
 const profileDialogDirty = ref(false);
 const desktopServerUrl = ref(getDesktopServerUrl());
 const desktopUpdateStatus = ref<DesktopUpdateStatusSnapshot>(getDesktopUpdateStatus());
+const desktopActivities = ref<DesktopActivityItem[]>(getDesktopActivities());
 const studies = ref<any[]>([]);
 const desktopRecentRoutes = ref<DesktopRoutePreference[]>(readDesktopRecentRoutes());
 const desktopFavoriteRoutes = ref<DesktopRoutePreference[]>(readDesktopFavoriteRoutes());
@@ -478,6 +516,7 @@ const headerRemindersLoading = ref(false);
 const headerReminderStats = ref({ overdueAes: 0, overdueMonitoringIssues: 0 });
 let desktopMenuUnlisten: (() => void) | undefined;
 let desktopUpdateStatusUnlisten: (() => void) | undefined;
+let desktopActivityUnlisten: (() => void) | undefined;
 
 const iconComponentMap = {
   audit: Document,
@@ -555,6 +594,32 @@ const desktopUpdateNoticeLabel = computed(() => {
   const pending = desktopUpdateStatus.value.pendingUpdate;
   return pending ? `新版本 ${pending.version}` : "";
 });
+const desktopActivityBadgeCount = computed(() =>
+  desktopActivities.value.filter((item) => item.status === "running" || item.status === "failed").length
+);
+const desktopActivityBadgeValue = computed(() => (desktopActivityBadgeCount.value > 9 ? "9+" : desktopActivityBadgeCount.value));
+const hasFinishedDesktopActivities = computed(() =>
+  desktopActivities.value.some((item) => item.status === "completed" || item.status === "cancelled" || item.status === "failed")
+);
+const desktopActivityStatusLabel = (status: DesktopActivityStatus) => {
+  switch (status) {
+    case "running":
+      return "进行中";
+    case "completed":
+      return "完成";
+    case "failed":
+      return "失败";
+    case "cancelled":
+      return "已取消";
+    default:
+      return "";
+  }
+};
+const formatDesktopActivityTime = (value: string) => {
+  const date = new Date(value);
+  if (Number.isNaN(date.getTime())) return "";
+  return date.toLocaleTimeString("zh-CN", { hour: "2-digit", minute: "2-digit" });
+};
 
 const currentDesktopRoutePreference = computed(() => {
   const item = desktopNavigationItems.value.find((navItem) => navItem.path === activeMenu.value);
@@ -565,20 +630,26 @@ const currentRouteFavorited = computed(() => {
   const current = currentDesktopRoutePreference.value;
   return Boolean(current && desktopFavoriteRoutes.value.some((item) => item.path === current.path));
 });
-const desktopBreadcrumbs = computed(() => {
+const desktopToolbarTitle = computed(() => {
   const current = currentDesktopRoutePreference.value;
-  if (!current) return [String(route.meta?.title || "")].filter(Boolean);
+  return current?.title || String(route.meta?.title || TEXT.common.appName);
+});
+
+const desktopToolbarSubtitle = computed(() => {
+  const current = currentDesktopRoutePreference.value;
+  if (!current) return TEXT.common.appName;
   const isAdminRoute = adminDesktopNavigationItems.value.some((item) => item.path === current.path);
   if (isAdminRoute) {
     const section = current.group && current.group !== TEXT.menu.admin ? current.group : "";
-    return [TEXT.menu.admin, section, current.title].filter(Boolean);
+    return [DESKTOP_ADMIN_SECTION_LABEL, section].filter(Boolean).join(" / ");
   }
   const isProjectRoute = projectDesktopNavigationItems.value.some((item) => item.path === current.path);
   if (isProjectRoute) {
     const section = current.group && current.group !== TEXT.menu.currentProject ? current.group : "";
-    return [TEXT.menu.currentProject, section, current.title].filter(Boolean);
+    const projectName = study.currentStudy?.name || TEXT.menu.currentProject;
+    return [projectName, section].filter(Boolean).join(" / ");
   }
-  return [current.group, current.title].filter(Boolean);
+  return current.group || TEXT.common.appName;
 });
 
 const canReadRiskIssueAes = computed(() => !isAdminContext.value && canAccessProjectPath("/risk-issues/sae"));
@@ -1015,6 +1086,9 @@ onMounted(async () => {
   desktopUpdateStatusUnlisten = listenDesktopUpdateStatus((status) => {
     desktopUpdateStatus.value = status;
   });
+  desktopActivityUnlisten = listenDesktopActivities((items) => {
+    desktopActivities.value = items;
+  });
   if (auth.token && !auth.user) {
     try {
       await auth.fetchMe();
@@ -1031,6 +1105,7 @@ onBeforeUnmount(() => {
   window.removeEventListener(DESKTOP_SERVER_URL_CHANGED_EVENT, updateDesktopServerUrl);
   desktopMenuUnlisten?.();
   desktopUpdateStatusUnlisten?.();
+  desktopActivityUnlisten?.();
 });
 
 useDesktopShortcuts(
@@ -1098,7 +1173,7 @@ useDesktopShortcuts(
 
 .sidebar-head {
   flex: 0 0 auto;
-  padding: 18px 16px 14px;
+  padding: 54px 16px 14px;
   border-bottom: 1px solid #dfe7f0;
 }
 
@@ -1109,14 +1184,6 @@ useDesktopShortcuts(
   gap: 12px;
 }
 
-.sidebar-kicker {
-  margin: 0 0 4px;
-  color: #66778d;
-  font-size: 11px;
-  font-weight: 800;
-  text-transform: uppercase;
-}
-
 .sidebar-head h1 {
   margin: 0;
   overflow: hidden;
@@ -1295,7 +1362,7 @@ useDesktopShortcuts(
 
 .desktop-main {
   display: grid;
-  grid-template-rows: 48px auto minmax(0, 1fr);
+  grid-template-rows: 52px auto minmax(0, 1fr);
   min-width: 0;
   min-height: 0;
 }
@@ -1312,15 +1379,16 @@ useDesktopShortcuts(
 }
 
 .toolbar-left,
-.toolbar-right,
-.history-controls {
+.toolbar-right {
   display: flex;
   align-items: center;
   min-width: 0;
 }
 
 .toolbar-left {
-  gap: 10px;
+  align-self: stretch;
+  cursor: default;
+  user-select: none;
 }
 
 .toolbar-right {
@@ -1328,35 +1396,55 @@ useDesktopShortcuts(
   gap: 8px;
 }
 
-.history-controls {
-  gap: 3px;
+.toolbar-right,
+.toolbar-right :deep(*),
+.desktop-sidebar button,
+.desktop-sidebar :deep(.el-dropdown),
+.workspace-tabs,
+.workspace-tabs *,
+.workspace-tab-context-menu,
+.workspace-tab-context-menu * {
+  -webkit-app-region: no-drag;
 }
 
-.breadcrumb-strip {
-  display: flex;
+.toolbar-left[data-tauri-drag-region],
+.toolbar-context[data-tauri-drag-region],
+.toolbar-title[data-tauri-drag-region],
+.toolbar-subtitle[data-tauri-drag-region] {
+  -webkit-app-region: drag;
+}
+
+.toolbar-context {
+  display: grid;
   min-width: 0;
-  align-items: center;
-  gap: 6px;
+  align-content: center;
+  gap: 2px;
+  width: 100%;
+  height: 100%;
   overflow: hidden;
 }
 
-.breadcrumb-chip {
-  display: inline-flex;
-  align-items: center;
-  max-width: 220px;
-  height: 26px;
-  padding: 0 9px;
-  border: 1px solid #d7e0ea;
-  border-radius: 999px;
-  background: #ffffff;
-  color: #53657b;
-  font-size: 12px;
-  font-weight: 650;
+.toolbar-title,
+.toolbar-subtitle {
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
+.toolbar-title {
+  color: #142033;
+  font-size: 14px;
+  font-weight: 800;
+  line-height: 1.25;
+}
+
+.toolbar-subtitle {
+  color: #66778d;
+  font-size: 11px;
+  font-weight: 700;
+  line-height: 1.2;
+}
+
 .command-trigger,
 .update-notice,
 .connection-button,
@@ -1555,6 +1643,151 @@ useDesktopShortcuts(
   text-align: center;
 }
 
+.activity-button {
+  position: relative;
+}
+
+.activity-badge {
+  display: inline-flex;
+}
+
+.activity-badge :deep(.el-badge__content) {
+  height: 16px;
+  min-width: 16px;
+  padding: 0 4px;
+  border: 2px solid #ffffff;
+  background: #3f5d75;
+  font-size: 10px;
+  line-height: 12px;
+}
+
+.activity-panel {
+  width: 320px;
+  padding: 10px;
+}
+
+.activity-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+  padding: 4px 4px 10px;
+}
+
+.activity-clear {
+  appearance: none;
+  height: 24px;
+  padding: 0 7px;
+  border: 1px solid #d2dce8;
+  border-radius: 6px;
+  background: #ffffff;
+  color: #52667e;
+  cursor: pointer;
+  font: inherit;
+  font-size: 11px;
+  font-weight: 700;
+}
+
+.activity-clear:hover {
+  background: #eef4fb;
+  color: #183756;
+}
+
+.activity-list {
+  display: flex;
+  max-height: 286px;
+  flex-direction: column;
+  gap: 3px;
+  overflow-y: auto;
+}
+
+.activity-item {
+  display: grid;
+  grid-template-columns: 7px minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 9px;
+  min-height: 46px;
+  padding: 7px;
+  border-radius: 7px;
+}
+
+.activity-item:hover {
+  background: #f4f7fa;
+}
+
+.activity-mark {
+  width: 7px;
+  height: 28px;
+  border-radius: 999px;
+  background: #7b8da3;
+}
+
+.activity-mark.is-running {
+  background: #3f5d75;
+}
+
+.activity-mark.is-completed {
+  background: #3f8f6b;
+}
+
+.activity-mark.is-failed {
+  background: #c24b4b;
+}
+
+.activity-mark.is-cancelled {
+  background: #9aaabd;
+}
+
+.activity-body {
+  display: inline-flex;
+  min-width: 0;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.activity-title,
+.activity-detail {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.activity-title {
+  color: #142033;
+  font-size: 13px;
+  font-weight: 800;
+}
+
+.activity-detail {
+  color: #7b8da3;
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.activity-meta {
+  display: inline-flex;
+  min-width: 44px;
+  flex-direction: column;
+  align-items: flex-end;
+  gap: 2px;
+  color: #52667e;
+  font-size: 12px;
+  font-weight: 800;
+}
+
+.activity-meta small {
+  color: #9aaabd;
+  font-size: 10px;
+  font-weight: 700;
+}
+
+.activity-empty {
+  padding: 24px 8px;
+  color: #8a9bb0;
+  font-size: 13px;
+  text-align: center;
+}
+
 .account-button {
   gap: 7px;
   max-width: 188px;
@@ -1780,14 +2013,15 @@ useDesktopShortcuts(
   border-bottom-color: #26364a;
 }
 
-:global([data-ctms-theme="dark"] .sidebar-kicker),
 :global([data-ctms-theme="dark"] .section-label),
 :global([data-ctms-theme="dark"] .panel-subtitle),
-:global([data-ctms-theme="dark"] .tab-group) {
+:global([data-ctms-theme="dark"] .tab-group),
+:global([data-ctms-theme="dark"] .toolbar-subtitle) {
   color: #94a3b8;
 }
 
 :global([data-ctms-theme="dark"] .sidebar-head h1),
+:global([data-ctms-theme="dark"] .toolbar-title),
 :global([data-ctms-theme="dark"] .panel-title),
 :global([data-ctms-theme="dark"] .panel-row code),
 :global([data-ctms-theme="dark"] .reminder-body span) {
@@ -1809,7 +2043,6 @@ useDesktopShortcuts(
 :global([data-ctms-theme="dark"] .update-notice),
 :global([data-ctms-theme="dark"] .connection-button),
 :global([data-ctms-theme="dark"] .account-button),
-:global([data-ctms-theme="dark"] .breadcrumb-chip),
 :global([data-ctms-theme="dark"] .workspace-tab) {
   border-color: #334155;
   background: #172033;
@@ -1895,6 +2128,40 @@ useDesktopShortcuts(
   color: #dbe5f1;
 }
 
+:global([data-ctms-theme="dark"] .desktop-activity-popover) {
+  border-color: #334155;
+  background: #172033;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-item:hover) {
+  background: #1f2d3d;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-title) {
+  color: #f8fafc;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-detail),
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-meta small),
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-empty) {
+  color: #94a3b8;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-meta) {
+  color: #cbd5e1;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-clear) {
+  border-color: #334155;
+  background: #172033;
+  color: #cbd5e1;
+}
+
+:global([data-ctms-theme="dark"] .desktop-activity-popover .activity-clear:hover) {
+  background: #243247;
+  color: #bfdbfe;
+}
+
 :global([data-ctms-theme="dark"] .panel-row) {
   color: #94a3b8;
 }
diff --git a/frontend/src/components/Layout.desktop.test.ts b/frontend/src/components/Layout.desktop.test.ts
index 9ca603b6..95e4ed80 100644
--- a/frontend/src/components/Layout.desktop.test.ts
+++ b/frontend/src/components/Layout.desktop.test.ts
@@ -6,14 +6,17 @@ const readLayoutSource = () => readFileSync(resolve(__dirname, "./Layout.vue"),
 const readDesktopLayoutSource = () => readFileSync(resolve(__dirname, "./DesktopLayout.vue"), "utf8");
 const readWebLayoutSource = () => readFileSync(resolve(__dirname, "./WebLayout.vue"), "utf8");
 const readNavigationSource = () => readFileSync(resolve(__dirname, "./layout/navigation.ts"), "utf8");
+const readTauriConfigSource = () => readFileSync(resolve(__dirname, "../../src-tauri/tauri.conf.json"), "utf8");
 const readDesktopPreferencesSource = () => readFileSync(resolve(__dirname, "../views/DesktopPreferences.vue"), "utf8");
 const readDesktopServerSettingsSource = () => readFileSync(resolve(__dirname, "../views/DesktopServerSettings.vue"), "utf8");
 const readDesktopUpdateManagerSource = () => readFileSync(resolve(__dirname, "../session/desktopUpdateManager.ts"), "utf8");
+const readDesktopActivityCenterSource = () => readFileSync(resolve(__dirname, "../session/desktopActivityCenter.ts"), "utf8");
 const readProfileSettingsSource = () => readFileSync(resolve(__dirname, "../views/ProfileSettings.vue"), "utf8");
 const readLoginSource = () => readFileSync(resolve(__dirname, "../views/Login.vue"), "utf8");
 const readFileTaskFeedbackSource = () => readFileSync(resolve(__dirname, "../utils/fileTaskFeedback.ts"), "utf8");
 const readAttachmentListSource = () => readFileSync(resolve(__dirname, "./attachments/AttachmentList.vue"), "utf8");
 const readDocumentDetailSource = () => readFileSync(resolve(__dirname, "../views/documents/DocumentDetail.vue"), "utf8");
+const readMainStyleSource = () => readFileSync(resolve(__dirname, "../styles/main.css"), "utf8");
 
 describe("desktop layout shell", () => {
   it("routes desktop and web shells through the runtime flag", () => {
@@ -46,19 +49,49 @@ describe("desktop layout shell", () => {
   it("keeps desktop context labels and command entry points de-duplicated", () => {
     const source = readDesktopLayoutSource();
 
-    expect(source).toContain("<h1>{{ TEXT.common.appName }} Desktop</h1>");
+    expect(source).toContain("<h1>{{ TEXT.common.appName }}</h1>");
+    expect(source).toContain('const DESKTOP_ADMIN_SECTION_LABEL = "系统管理";');
+    expect(source).toContain('data-tauri-drag-region');
+    expect(source).toContain('class="toolbar-title"');
+    expect(source).toContain('class="toolbar-subtitle"');
+    expect(source).toContain("desktopToolbarTitle");
+    expect(source).toContain("desktopToolbarSubtitle");
+    expect(source).not.toContain("desktopBreadcrumbs");
+    expect(source).not.toContain("breadcrumb-chip");
+    expect(source).not.toContain("history-controls");
+    expect(source).not.toContain('title="后退"');
+    expect(source).not.toContain('title="前进"');
+    expect(source).not.toContain('title="刷新当前视图"');
     expect(source).not.toContain("const sidebarTitle");
     expect(source).not.toContain('title="搜索命令"');
     expect(source).not.toContain("desktop-statusbar");
     expect(source).not.toContain("status-item");
     expect(source).not.toContain("accountProjectRoleLabel");
     expect(source).not.toContain("projectStatusLabel");
-    expect(source).toContain("grid-template-rows: 48px auto minmax(0, 1fr);");
+    expect(source).toContain("grid-template-rows: 52px auto minmax(0, 1fr);");
     expect(source).toContain("const adminDesktopNavigationItems");
     expect(source).toContain("const projectDesktopNavigationItems");
+    expect(source).toContain('id: "desktop:refresh"');
+    expect(source).toContain('shortcut: "⌘R"');
+    expect(source).toContain('command === "ctms.desktop.back"');
+    expect(source).toContain('command === "ctms.desktop.forward"');
     expect(source).not.toContain("const root = study.currentStudy?.name || TEXT.menu.currentProject");
   });
 
+  it("uses macOS overlay titlebar without adding window permissions", () => {
+    const tauriConfig = readTauriConfigSource();
+    const layout = readDesktopLayoutSource();
+
+    expect(tauriConfig).toContain('"decorations": true');
+    expect(tauriConfig).toContain('"titleBarStyle": "Overlay"');
+    expect(tauriConfig).toContain('"hiddenTitle": true');
+    expect(tauriConfig).toContain('"trafficLightPosition": { "x": 16, "y": 18 }');
+    expect(layout).toContain("padding: 54px 16px 14px;");
+    expect(layout).toContain("-webkit-app-region: drag;");
+    expect(layout).toContain("-webkit-app-region: no-drag;");
+    expect(layout).not.toContain(["@tauri-apps", "api", "window"].join("/"));
+  });
+
   it("renders desktop preferences as a split settings panel", () => {
     const preferences = readDesktopPreferencesSource();
     const desktopLayout = readDesktopLayoutSource();
@@ -218,7 +251,7 @@ describe("desktop layout shell", () => {
     expect(preferences).toContain("当前已是最新版本");
     expect(desktopUpdateManager).not.toContain("当前构建未启用桌面端自动更新");
     expect(desktopUpdateManager).not.toContain("该版本已选择稍后提醒");
-    expect(desktopUpdateManager).not.toContain("当前已是最新版本");
+    expect(desktopUpdateManager).toContain("当前已是最新版本");
     expect(desktopUpdateManager).toContain("桌面端更新检查失败，请稍后重试或联系管理员。");
     expect(desktopLayout).toContain("desktopUpdateNoticeVisible");
     expect(desktopLayout).toContain("listenDesktopUpdateStatus");
@@ -233,9 +266,15 @@ describe("desktop layout shell", () => {
     expect(helper).toContain("export const pickFilesWithFeedback");
     expect(helper).toContain("export const saveFileWithFeedback");
     expect(helper).toContain("export const openFileWithFeedback");
+    expect(helper).toContain("startDesktopActivity");
+    expect(helper).toContain("finishDesktopActivity");
+    expect(helper).toContain("desktopFileActivitiesEnabled");
     expect(attachments).toContain("pickFilesWithFeedback");
     expect(attachments).toContain("saveFileWithFeedback");
     expect(attachments).toContain("openFileWithFeedback");
+    expect(attachments).toContain("startDesktopActivity");
+    expect(attachments).toContain('title: "下载附件"');
+    expect(attachments).toContain('title: "上传附件"');
     expect(documentDetail).toContain("pickFilesWithFeedback");
     expect(documentDetail).toContain("saveFileWithFeedback");
     expect(documentDetail).toContain("openFileWithFeedback");
@@ -243,6 +282,42 @@ describe("desktop layout shell", () => {
     expect(documentDetail).not.toContain("openFile, pickFiles, saveFile");
   });
 
+  it("surfaces persistent desktop activity feedback without local task persistence", () => {
+    const desktopLayout = readDesktopLayoutSource();
+    const activityCenter = readDesktopActivityCenterSource();
+    const updateManager = readDesktopUpdateManagerSource();
+
+    expect(desktopLayout).toContain('popper-class="desktop-activity-popover"');
+    expect(desktopLayout).toContain("desktopActivities");
+    expect(desktopLayout).toContain("listenDesktopActivities");
+    expect(desktopLayout).toContain("clearFinishedDesktopActivities");
+    expect(desktopLayout).toContain("desktopActivityBadgeCount");
+    expect(activityCenter).toContain("DESKTOP_ACTIVITY_CHANGED_EVENT");
+    expect(activityCenter).toContain("safeActivityText");
+    expect(activityCenter).toContain("unsafeActivityTextPattern");
+    expect(activityCenter).not.toContain("localStorage");
+    expect(activityCenter).not.toContain("sessionStorage");
+    expect(updateManager).toContain('title: "检查桌面更新"');
+    expect(updateManager).toContain('title: "安装桌面更新"');
+    expect(updateManager).toContain("finishUpdateActivity");
+  });
+
+  it("keeps desktop business pages dense and workbench-like", () => {
+    const styles = readMainStyleSource();
+
+    expect(styles).toContain("/* Desktop workbench density */");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .table-card");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .hero-banner");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .faq-hero");
+    expect(styles).toContain("box-shadow: none !important;");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-table th.el-table__cell");
+    expect(styles).toContain("height: 34px;");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-table td.el-table__cell");
+    expect(styles).toContain("padding: 7px 10px;");
+    expect(styles).toContain(".desktop-workbench .desktop-route-shell .el-drawer__body");
+    expect(styles).toContain(":root[data-ctms-theme=\"dark\"] .desktop-workbench .desktop-route-shell .hero-stat");
+  });
+
   it("keeps desktop entry surfaces stable at the minimum window size", () => {
     const login = readLoginSource();
     const serverSettings = readDesktopServerSettingsSource();
diff --git a/frontend/src/components/PermissionAccessLogs.vue b/frontend/src/components/PermissionAccessLogs.vue
index 81cf1bb4..2b65d691 100644
--- a/frontend/src/components/PermissionAccessLogs.vue
+++ b/frontend/src/components/PermissionAccessLogs.vue
@@ -519,7 +519,14 @@ const openSecurityLogDialog = () => {
 
 const downloadLogFile = async (fileName: string, lines: string[]) => {
   const blob = new Blob([`${lines.join("\n")}\n`], { type: "text/plain;charset=utf-8" });
-  await saveFileWithFeedback({ suggestedName: fileName, mimeType: "text/plain;charset=utf-8", data: blob });
+  await saveFileWithFeedback(
+    { suggestedName: fileName, mimeType: "text/plain;charset=utf-8", data: blob },
+    {
+      kind: "export",
+      title: "导出日志",
+      completedDetail: "日志文件已保存",
+    },
+  );
 };
 
 const downloadInterfaceLog = () => {
diff --git a/frontend/src/components/attachments/AttachmentList.vue b/frontend/src/components/attachments/AttachmentList.vue
index 31284b97..00938eb0 100644
--- a/frontend/src/components/attachments/AttachmentList.vue
+++ b/frontend/src/components/attachments/AttachmentList.vue
@@ -154,6 +154,7 @@ import { isApiPermissionAllowed } from "../../utils/apiPermissionValue";
 import { TEXT } from "../../locales";
 import { clientRuntime } from "../../runtime";
 import { openFileWithFeedback, pickFilesWithFeedback, saveFileWithFeedback } from "../../utils/fileTaskFeedback";
+import { finishDesktopActivity, startDesktopActivity, updateDesktopActivity } from "../../session/desktopActivityCenter";
 
 type AttachmentEntityGroup = {
   entityType: string;
@@ -253,6 +254,7 @@ const tableProgress = computed(() => {
   return group ? progressMap[group.key] || 0 : 0;
 });
 const isImmediateUploading = computed(() => tableProgress.value > 0 && tableProgress.value < 100);
+const desktopActivityEnabled = () => nativeFiles;
 
 const validateFile = (file: File) => {
   if (file.size > maxSize.value * 1024 * 1024) {
@@ -293,14 +295,21 @@ const pendingSnapshot = () =>
   uploadGroups.value.flatMap((group) => (pendingMap[group.key] || []).map((item) => `${group.key}:${pendingFileKey(item.file)}`));
 const hasPendingUploads = computed(() => uploadGroups.value.some((group) => (pendingMap[group.key] || []).length > 0));
 
-const uploadFile = async (group: UploadGroup, file: File, targetEntityId: string) => {
+const uploadFile = async (
+  group: UploadGroup,
+  file: File,
+  targetEntityId: string,
+  onProgress?: (progress: number) => void,
+) => {
   if (!props.studyId || !targetEntityId) return;
   if (!validateFile(file)) throw new Error("invalid file");
   progressMap[group.key] = 0;
   await uploadAttachment(props.studyId, group.entityType, targetEntityId, file, {
     onUploadProgress: (evt: ProgressEvent) => {
       if (evt.total) {
-        progressMap[group.key] = Math.round((evt.loaded / evt.total) * 100);
+        const progress = Math.round((evt.loaded / evt.total) * 100);
+        progressMap[group.key] = progress;
+        onProgress?.(progress);
       }
     },
   });
@@ -313,6 +322,16 @@ const uploadPending = async (entityId?: string) => {
   }
   if (!targetEntityId) return;
   let hasFailure = false;
+  const totalCount = uploadGroups.value.reduce((sum, group) => sum + (pendingMap[group.key] || []).length, 0);
+  const activityId = desktopActivityEnabled() && totalCount > 0
+    ? startDesktopActivity({
+      kind: "upload",
+      title: "上传附件",
+      detail: `正在上传 ${totalCount} 个附件`,
+      progress: 0,
+    })
+    : "";
+  let completedCount = 0;
   for (const group of uploadGroups.value) {
     const items = [...(pendingMap[group.key] || [])];
     const remainItems: PendingUploadItem[] = [];
@@ -320,19 +339,36 @@ const uploadPending = async (entityId?: string) => {
       try {
         item.status = "uploading";
         item.error = "";
-        await uploadFile(group, item.file, targetEntityId);
+        await uploadFile(group, item.file, targetEntityId, (progress) => {
+          if (!activityId || !totalCount) return;
+          updateDesktopActivity(activityId, {
+            detail: `正在上传 ${completedCount + 1}/${totalCount}`,
+            progress: Math.min(99, Math.round(((completedCount + progress / 100) / totalCount) * 100)),
+          });
+        });
       } catch (e: any) {
         hasFailure = true;
         item.status = "failed";
         item.error = e?.response?.data?.message || TEXT.common.messages.uploadFailed;
         remainItems.push(item);
       } finally {
+        completedCount += 1;
+        if (activityId && totalCount) {
+          updateDesktopActivity(activityId, {
+            detail: `已处理 ${completedCount}/${totalCount}`,
+            progress: Math.min(99, Math.round((completedCount / totalCount) * 100)),
+          });
+        }
         progressMap[group.key] = 0;
       }
     }
     pendingMap[group.key] = remainItems;
   }
-  if (hasFailure) throw new Error(TEXT.common.messages.uploadFailed);
+  if (hasFailure) {
+    finishDesktopActivity(activityId, "failed", { detail: "部分附件上传失败" });
+    throw new Error(TEXT.common.messages.uploadFailed);
+  }
+  finishDesktopActivity(activityId, "completed", { detail: "附件上传完成" });
 };
 
 const uploadImmediate = async (options: any) => {
@@ -340,11 +376,18 @@ const uploadImmediate = async (options: any) => {
   const group = tableUploadGroup.value;
   if (!file || !group || !props.entityId) return;
   if (!validateFile(file)) return;
+  const activityId = desktopActivityEnabled()
+    ? startDesktopActivity({ kind: "upload", title: "上传附件", detail: "正在上传附件", progress: 0 })
+    : "";
   try {
-    await uploadFile(group, file, props.entityId);
-    ElMessage.success(TEXT.common.messages.uploadSuccess);
+    await uploadFile(group, file, props.entityId, (progress) => {
+      updateDesktopActivity(activityId, { detail: "正在上传附件", progress });
+    });
+    finishDesktopActivity(activityId, "completed", { detail: "附件上传完成" });
+    if (!desktopActivityEnabled()) ElMessage.success(TEXT.common.messages.uploadSuccess);
     load();
   } catch (e: any) {
+    finishDesktopActivity(activityId, "failed", { detail: "附件上传失败" });
     ElMessage.error(e?.response?.data?.message || e?.message || TEXT.common.messages.uploadFailed);
   } finally {
     progressMap[group.key] = 0;
@@ -399,25 +442,48 @@ const fetchAttachmentBlob = async (row: any): Promise<Blob> => {
 };
 
 const download = async (row: any) => {
+  const activityId = desktopActivityEnabled()
+    ? startDesktopActivity({ kind: "download", title: "下载附件", detail: "正在从服务器获取文件", progress: 20 })
+    : "";
   try {
+    const blob = await fetchAttachmentBlob(row);
+    updateDesktopActivity(activityId, { detail: "等待选择保存位置", progress: 65 });
     await saveFileWithFeedback({
       suggestedName: row?.filename || "download",
       mimeType: row?.content_type,
-      data: await fetchAttachmentBlob(row),
+      data: blob,
+    }, {
+      activityId,
+      title: "下载附件",
+      pendingDetail: "等待选择保存位置",
+      completedDetail: "附件已保存",
+      cancelledDetail: "已取消保存附件",
     });
   } catch {
+    finishDesktopActivity(activityId, "failed", { detail: "附件下载失败" });
     ElMessage.error(TEXT.common.messages.downloadFailed);
   }
 };
 
 const openExternally = async (row: any) => {
+  const activityId = desktopActivityEnabled()
+    ? startDesktopActivity({ kind: "open", title: "打开附件", detail: "正在从服务器获取文件", progress: 20 })
+    : "";
   try {
+    const blob = await fetchAttachmentBlob(row);
+    updateDesktopActivity(activityId, { detail: "正在准备文件", progress: 65 });
     await openFileWithFeedback({
       suggestedName: row?.filename || "attachment",
       mimeType: row?.content_type,
-      data: await fetchAttachmentBlob(row),
+      data: blob,
+    }, {
+      activityId,
+      title: "打开附件",
+      pendingDetail: "正在准备文件",
+      completedDetail: "已交给系统打开",
     });
   } catch {
+    finishDesktopActivity(activityId, "failed", { detail: "附件打开失败" });
     ElMessage.error(TEXT.common.messages.previewNotSupported);
   }
 };
diff --git a/frontend/src/session/desktopActivityCenter.test.ts b/frontend/src/session/desktopActivityCenter.test.ts
new file mode 100644
index 00000000..8d8fd1e8
--- /dev/null
+++ b/frontend/src/session/desktopActivityCenter.test.ts
@@ -0,0 +1,64 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+describe("desktop activity center", () => {
+  beforeEach(async () => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date("2026-07-02T08:00:00.000Z"));
+    const { resetDesktopActivitiesForTest } = await import("./desktopActivityCenter");
+    resetDesktopActivitiesForTest();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it("tracks in-memory desktop task status without persisting sensitive details", async () => {
+    const {
+      finishDesktopActivity,
+      getDesktopActivities,
+      startDesktopActivity,
+      updateDesktopActivity,
+    } = await import("./desktopActivityCenter");
+    const tokenParam = ["to", "ken"].join("");
+
+    const id = startDesktopActivity({
+      kind: "download",
+      title: "下载附件",
+      detail: `https://example.com/file?${tokenParam}=secret`,
+      progress: 12.4,
+    });
+    updateDesktopActivity(id, { detail: "正在准备文件", progress: 67 });
+    finishDesktopActivity(id, "completed", { detail: "文件已保存" });
+
+    expect(getDesktopActivities()).toEqual([
+      expect.objectContaining({
+        id,
+        kind: "download",
+        status: "completed",
+        title: "下载附件",
+        detail: "文件已保存",
+        progress: 100,
+      }),
+    ]);
+    expect(JSON.stringify(getDesktopActivities())).not.toContain(`${tokenParam}=`);
+    expect(JSON.stringify(getDesktopActivities())).not.toContain("https://");
+  });
+
+  it("keeps running tasks visible when clearing completed activity", async () => {
+    const {
+      clearFinishedDesktopActivities,
+      finishDesktopActivity,
+      getDesktopActivities,
+      startDesktopActivity,
+    } = await import("./desktopActivityCenter");
+
+    const runningId = startDesktopActivity({ kind: "upload", title: "上传附件" });
+    const finishedId = startDesktopActivity({ kind: "update", title: "检查桌面更新" });
+    finishDesktopActivity(finishedId, "completed", { detail: "当前已是最新版本" });
+    clearFinishedDesktopActivities();
+
+    expect(getDesktopActivities()).toEqual([
+      expect.objectContaining({ id: runningId, status: "running" }),
+    ]);
+  });
+});
diff --git a/frontend/src/session/desktopActivityCenter.ts b/frontend/src/session/desktopActivityCenter.ts
new file mode 100644
index 00000000..6f7763c2
--- /dev/null
+++ b/frontend/src/session/desktopActivityCenter.ts
@@ -0,0 +1,134 @@
+export const DESKTOP_ACTIVITY_CHANGED_EVENT = "ctms:desktop-activity-changed";
+
+export type DesktopActivityKind = "upload" | "download" | "export" | "update" | "open";
+export type DesktopActivityStatus = "running" | "completed" | "failed" | "cancelled";
+
+export interface DesktopActivityItem {
+  id: string;
+  kind: DesktopActivityKind;
+  status: DesktopActivityStatus;
+  title: string;
+  detail: string;
+  progress: number | null;
+  startedAt: string;
+  updatedAt: string;
+}
+
+export interface DesktopActivityInput {
+  kind: DesktopActivityKind;
+  title: string;
+  detail?: string;
+  progress?: number | null;
+}
+
+const MAX_ACTIVITY_ITEMS = 12;
+let activitySequence = 0;
+let activities: DesktopActivityItem[] = [];
+
+const unsafeActivityTextPattern = /\b(?:https?:\/\/|token=|access_token=|authorization|bearer)\b/i;
+
+const safeActivityText = (value: string | undefined, fallback = "") => {
+  const text = (value || "").trim();
+  if (!text || unsafeActivityTextPattern.test(text)) return fallback;
+  return text.slice(0, 80);
+};
+
+const nowIso = () => new Date().toISOString();
+
+const clampProgress = (value: number | null | undefined) => {
+  if (value === null || value === undefined || !Number.isFinite(value)) return null;
+  return Math.max(0, Math.min(100, Math.round(value)));
+};
+
+const snapshotActivities = () => activities.map((item) => ({ ...item }));
+
+const emitActivities = () => {
+  if (typeof window === "undefined") return;
+  window.dispatchEvent(
+    new CustomEvent(DESKTOP_ACTIVITY_CHANGED_EVENT, {
+      detail: snapshotActivities(),
+    }),
+  );
+};
+
+const trimActivities = () => {
+  const running = activities.filter((item) => item.status === "running");
+  const finished = activities.filter((item) => item.status !== "running");
+  activities = [...running, ...finished].slice(0, MAX_ACTIVITY_ITEMS);
+};
+
+export const getDesktopActivities = (): DesktopActivityItem[] => snapshotActivities();
+
+export const listenDesktopActivities = (listener: (items: DesktopActivityItem[]) => void) => {
+  if (typeof window === "undefined") return () => {};
+  const onChange = (event: Event) => {
+    listener((event as CustomEvent<DesktopActivityItem[]>).detail || []);
+  };
+  window.addEventListener(DESKTOP_ACTIVITY_CHANGED_EVENT, onChange);
+  return () => window.removeEventListener(DESKTOP_ACTIVITY_CHANGED_EVENT, onChange);
+};
+
+export const startDesktopActivity = (input: DesktopActivityInput): string => {
+  const timestamp = nowIso();
+  const id = `activity-${timestamp}-${activitySequence += 1}`;
+  activities = [
+    {
+      id,
+      kind: input.kind,
+      status: "running",
+      title: safeActivityText(input.title, "桌面任务"),
+      detail: safeActivityText(input.detail),
+      progress: clampProgress(input.progress),
+      startedAt: timestamp,
+      updatedAt: timestamp,
+    },
+    ...activities,
+  ];
+  trimActivities();
+  emitActivities();
+  return id;
+};
+
+export const updateDesktopActivity = (
+  id: string | undefined,
+  patch: Partial<Pick<DesktopActivityItem, "detail" | "progress" | "status" | "title">>,
+) => {
+  if (!id) return;
+  const index = activities.findIndex((item) => item.id === id);
+  if (index < 0) return;
+  const current = activities[index];
+  const next: DesktopActivityItem = {
+    ...current,
+    ...patch,
+    title: patch.title === undefined ? current.title : safeActivityText(patch.title, current.title),
+    detail: patch.detail === undefined ? current.detail : safeActivityText(patch.detail),
+    progress: patch.progress === undefined ? current.progress : clampProgress(patch.progress),
+    updatedAt: nowIso(),
+  };
+  activities = [next, ...activities.slice(0, index), ...activities.slice(index + 1)];
+  trimActivities();
+  emitActivities();
+};
+
+export const finishDesktopActivity = (
+  id: string | undefined,
+  status: Exclude<DesktopActivityStatus, "running">,
+  patch: Partial<Pick<DesktopActivityItem, "detail" | "progress" | "title">> = {},
+) => {
+  updateDesktopActivity(id, {
+    ...patch,
+    status,
+    progress: patch.progress ?? (status === "completed" ? 100 : null),
+  });
+};
+
+export const clearFinishedDesktopActivities = () => {
+  activities = activities.filter((item) => item.status === "running");
+  emitActivities();
+};
+
+export const resetDesktopActivitiesForTest = () => {
+  activities = [];
+  activitySequence = 0;
+  emitActivities();
+};
diff --git a/frontend/src/session/desktopUpdateManager.test.ts b/frontend/src/session/desktopUpdateManager.test.ts
index 9fae2d0e..ff51aaa0 100644
--- a/frontend/src/session/desktopUpdateManager.test.ts
+++ b/frontend/src/session/desktopUpdateManager.test.ts
@@ -5,6 +5,9 @@ const installPendingDesktopUpdateMock = vi.hoisted(() => vi.fn());
 const isDesktopUpdaterAvailableMock = vi.hoisted(() => vi.fn());
 const messageErrorMock = vi.hoisted(() => vi.fn());
 const confirmMock = vi.hoisted(() => vi.fn());
+const finishActivityMock = vi.hoisted(() => vi.fn());
+const startActivityMock = vi.hoisted(() => vi.fn());
+const updateActivityMock = vi.hoisted(() => vi.fn());
 
 vi.mock("../runtime", () => ({
   checkForDesktopUpdate: checkForDesktopUpdateMock,
@@ -21,6 +24,12 @@ vi.mock("element-plus", () => ({
   },
 }));
 
+vi.mock("./desktopActivityCenter", () => ({
+  finishDesktopActivity: finishActivityMock,
+  startDesktopActivity: startActivityMock,
+  updateDesktopActivity: updateActivityMock,
+}));
+
 const createStorage = (): Storage => {
   const data = new Map<string, string>();
   return {
@@ -56,6 +65,7 @@ describe("desktop update manager", () => {
     checkForDesktopUpdateMock.mockResolvedValue(null);
     installPendingDesktopUpdateMock.mockResolvedValue(undefined);
     confirmMock.mockResolvedValue(undefined);
+    startActivityMock.mockReturnValue("activity-1");
   });
 
   afterEach(async () => {
@@ -72,6 +82,13 @@ describe("desktop update manager", () => {
 
     expect(status).toBe("up-to-date");
     expect(confirmMock).not.toHaveBeenCalled();
+    expect(startActivityMock).toHaveBeenCalledWith({
+      kind: "update",
+      title: "检查桌面更新",
+      detail: "正在连接更新服务",
+      progress: 20,
+    });
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "completed", { detail: "当前已是最新版本" });
     expect(getDesktopUpdateStatus()).toMatchObject({
       lastStatus: "up-to-date",
       pendingUpdate: null,
@@ -91,6 +108,7 @@ describe("desktop update manager", () => {
     expect(postponed).toBe("postponed");
     expect(suppressed).toBe("suppressed");
     expect(confirmMock).toHaveBeenCalledTimes(1);
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "cancelled", { detail: "已选择稍后提醒" });
     expect(installPendingDesktopUpdateMock).not.toHaveBeenCalled();
     expect(postponedStatus.postponedUntil).toBe("2026-07-03T00:00:00.000Z");
     expect(getDesktopUpdateStatus()).toMatchObject({
@@ -109,6 +127,7 @@ describe("desktop update manager", () => {
 
     expect(status).toBe("failed");
     expect(messageErrorMock).toHaveBeenCalledWith("桌面端更新安装失败，请稍后重试或联系管理员。");
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "failed", { detail: "更新安装失败" });
     expect(getDesktopUpdateStatus()).toMatchObject({
       installing: false,
       lastStatus: "failed",
@@ -147,6 +166,7 @@ describe("desktop update manager", () => {
     const status = await checkDesktopUpdateAndPrompt();
 
     expect(status).toBe("failed");
+    expect(startActivityMock).not.toHaveBeenCalled();
     expect(messageErrorMock).not.toHaveBeenCalled();
     expect(getDesktopUpdateStatus()).toMatchObject({
       lastStatus: "failed",
@@ -162,6 +182,7 @@ describe("desktop update manager", () => {
 
     expect(status).toBe("disabled");
     expect(checkForDesktopUpdateMock).not.toHaveBeenCalled();
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "cancelled", { detail: "更新检查不可用" });
     expect(getDesktopUpdateStatus()).toMatchObject({
       available: false,
       lastStatus: "disabled",
diff --git a/frontend/src/session/desktopUpdateManager.ts b/frontend/src/session/desktopUpdateManager.ts
index cb37be1c..5138aab9 100644
--- a/frontend/src/session/desktopUpdateManager.ts
+++ b/frontend/src/session/desktopUpdateManager.ts
@@ -5,6 +5,7 @@ import {
   isDesktopUpdaterAvailable,
   type DesktopUpdateInfo,
 } from "../runtime";
+import { finishDesktopActivity, startDesktopActivity, updateDesktopActivity } from "./desktopActivityCenter";
 
 const INITIAL_CHECK_DELAY_MS = 30_000;
 const CHECK_INTERVAL_MS = 6 * 60 * 60 * 1000;
@@ -118,7 +119,25 @@ const releaseNotes = (update: DesktopUpdateInfo): string => {
   return lines.join("\n");
 };
 
-const promptForUpdate = async (update: DesktopUpdateInfo): Promise<DesktopUpdateCheckStatus> => {
+const updateUpdateActivity = (
+  activityId: string | undefined,
+  patch: Parameters<typeof updateDesktopActivity>[1],
+) => {
+  if (activityId) updateDesktopActivity(activityId, patch);
+};
+
+const finishUpdateActivity = (
+  activityId: string | undefined,
+  status: Parameters<typeof finishDesktopActivity>[1],
+  patch?: Parameters<typeof finishDesktopActivity>[2],
+) => {
+  if (activityId) finishDesktopActivity(activityId, status, patch);
+};
+
+const promptForUpdate = async (
+  update: DesktopUpdateInfo,
+  activityId?: string,
+): Promise<DesktopUpdateCheckStatus> => {
   if (promptVisible || isSuppressed(update.version)) return "suppressed";
   promptVisible = true;
   try {
@@ -128,16 +147,20 @@ const promptForUpdate = async (update: DesktopUpdateInfo): Promise<DesktopUpdate
       distinguishCancelAndClose: true,
       type: "info",
     });
+    updateUpdateActivity(activityId, { detail: "正在下载并安装更新", progress: 75 });
     setUpdateStatus({ installing: true, lastError: "" });
     await installPendingDesktopUpdate();
     setUpdateStatus({ installing: false, lastStatus: "available", pendingUpdate: update });
+    finishUpdateActivity(activityId, "completed", { detail: "更新安装已启动" });
     return "available";
   } catch (error) {
     if (error === "cancel" || error === "close") {
       postponeVersion(update.version);
+      finishUpdateActivity(activityId, "cancelled", { detail: "已选择稍后提醒" });
       return "postponed";
     }
     setUpdateStatus({ installing: false, lastStatus: "failed", lastError: "桌面端更新安装失败" });
+    finishUpdateActivity(activityId, "failed", { detail: "更新安装失败" });
     ElMessage.error("桌面端更新安装失败，请稍后重试或联系管理员。");
     return "failed";
   } finally {
@@ -147,7 +170,13 @@ const promptForUpdate = async (update: DesktopUpdateInfo): Promise<DesktopUpdate
 
 export const promptForPendingDesktopUpdate = async (): Promise<DesktopUpdateCheckStatus> => {
   if (updateStatus.pendingUpdate) {
-    return promptForUpdate(updateStatus.pendingUpdate);
+    const activityId = startDesktopActivity({
+      kind: "update",
+      title: "安装桌面更新",
+      detail: "等待确认更新",
+      progress: 30,
+    });
+    return promptForUpdate(updateStatus.pendingUpdate, activityId);
   }
   return checkDesktopUpdateAndPrompt({ notifyWhenCurrent: true, promptWhenAvailable: true });
 };
@@ -155,6 +184,9 @@ export const promptForPendingDesktopUpdate = async (): Promise<DesktopUpdateChec
 export const checkDesktopUpdateAndPrompt = async (
   options: DesktopUpdateCheckOptions = {},
 ): Promise<DesktopUpdateCheckStatus> => {
+  const activityId = options.notifyWhenCurrent || options.promptWhenAvailable
+    ? startDesktopActivity({ kind: "update", title: "检查桌面更新", detail: "正在连接更新服务", progress: 20 })
+    : "";
   if (!isDesktopUpdaterAvailable()) {
     setUpdateStatus({
       available: false,
@@ -166,9 +198,11 @@ export const checkDesktopUpdateAndPrompt = async (
       pendingUpdate: null,
       postponedUntil: null,
     });
+    finishUpdateActivity(activityId, "cancelled", { detail: "更新检查不可用" });
     return "disabled";
   }
   setUpdateStatus({ available: true, checking: true, lastError: "" });
+  updateUpdateActivity(activityId, { detail: "正在读取更新信息", progress: 40 });
   try {
     const update = await checkForDesktopUpdate();
     const checkedAt = new Date().toISOString();
@@ -182,10 +216,17 @@ export const checkDesktopUpdateAndPrompt = async (
         pendingUpdate: update,
         postponedUntil: postponedUntilMs ? new Date(postponedUntilMs).toISOString() : null,
       });
+      updateUpdateActivity(activityId, {
+        detail: suppressed ? "稍后提醒仍在生效" : "发现可用更新",
+        progress: 65,
+      });
       const shouldPrompt = options.promptWhenAvailable ?? options.notifyWhenCurrent ?? false;
       if (shouldPrompt && !suppressed) {
-        return promptForUpdate(update);
+        return promptForUpdate(update, activityId);
       }
+      finishUpdateActivity(activityId, suppressed ? "cancelled" : "completed", {
+        detail: suppressed ? "已选择稍后提醒" : "发现可用更新",
+      });
       return suppressed ? "suppressed" : "available";
     }
     setUpdateStatus({
@@ -196,6 +237,7 @@ export const checkDesktopUpdateAndPrompt = async (
       pendingUpdate: null,
       postponedUntil: null,
     });
+    finishUpdateActivity(activityId, "completed", { detail: "当前已是最新版本" });
     return "up-to-date";
   } catch (error) {
     const message = error instanceof Error ? error.message : "桌面端更新检查失败";
@@ -205,6 +247,7 @@ export const checkDesktopUpdateAndPrompt = async (
       lastCheckedAt: new Date().toISOString(),
       lastError: message,
     });
+    finishUpdateActivity(activityId, "failed", { detail: "更新检查失败" });
     // 启动和定时检查不打断录入；下一轮继续检查。
     if (options.notifyWhenCurrent) ElMessage.error("桌面端更新检查失败，请稍后重试或联系管理员。");
     return "failed";
diff --git a/frontend/src/styles/main.css b/frontend/src/styles/main.css
index 71b31715..47101291 100644
--- a/frontend/src/styles/main.css
+++ b/frontend/src/styles/main.css
@@ -638,6 +638,237 @@ body {
   font-size: 13px;
 }
 
+/* Desktop workbench density */
+.desktop-workbench {
+  --ctms-radius-sm: 5px;
+  --ctms-radius: 6px;
+  --ctms-radius-lg: 8px;
+  --ctms-shadow-sm: none;
+  --ctms-shadow: none;
+  --ctms-shadow-md: none;
+  --ctms-shadow-lg: none;
+}
+
+.desktop-workbench .desktop-route-shell {
+  color: var(--ctms-text-regular);
+  font-size: 13px;
+}
+
+.desktop-workbench .desktop-route-shell .page,
+.desktop-workbench .desktop-route-shell .ctms-page {
+  gap: 10px;
+  padding: 0;
+}
+
+.desktop-workbench .desktop-route-shell .el-card,
+.desktop-workbench .desktop-route-shell .unified-shell,
+.desktop-workbench .desktop-route-shell .ctms-state,
+.desktop-workbench .desktop-route-shell .ctms-section-card,
+.desktop-workbench .desktop-route-shell .ctms-table-card,
+.desktop-workbench .desktop-route-shell .table-card,
+.desktop-workbench .desktop-route-shell .detail-card,
+.desktop-workbench .desktop-route-shell .stats-card,
+.desktop-workbench .desktop-route-shell .notifications-card,
+.desktop-workbench .desktop-route-shell .hero-card,
+.desktop-workbench .desktop-route-shell .hero-banner,
+.desktop-workbench .desktop-route-shell .faq-hero {
+  border: 1px solid #d9e2ec;
+  border-radius: 6px !important;
+  background: #ffffff;
+  box-shadow: none !important;
+}
+
+.desktop-workbench .desktop-route-shell .hero-banner,
+.desktop-workbench .desktop-route-shell .hero-card,
+.desktop-workbench .desktop-route-shell .faq-hero {
+  min-height: 0;
+  padding: 12px 14px !important;
+  overflow: hidden;
+}
+
+.desktop-workbench .desktop-route-shell .hero-banner::before,
+.desktop-workbench .desktop-route-shell .hero-banner::after,
+.desktop-workbench .desktop-route-shell .hero-card::before,
+.desktop-workbench .desktop-route-shell .hero-card::after,
+.desktop-workbench .desktop-route-shell .faq-hero::before,
+.desktop-workbench .desktop-route-shell .faq-hero::after,
+.desktop-workbench .desktop-route-shell .hero-bg-pattern,
+.desktop-workbench .desktop-route-shell .hero-accent {
+  display: none !important;
+}
+
+.desktop-workbench .desktop-route-shell .hero-top,
+.desktop-workbench .desktop-route-shell .hero-content,
+.desktop-workbench .desktop-route-shell .hero-body {
+  margin-bottom: 10px !important;
+}
+
+.desktop-workbench .desktop-route-shell .hero-title,
+.desktop-workbench .desktop-route-shell .faq-hero h1 {
+  color: var(--ctms-text-main) !important;
+  font-size: 16px !important;
+  font-weight: 750 !important;
+  line-height: 1.35;
+}
+
+.desktop-workbench .desktop-route-shell .hero-stats,
+.desktop-workbench .desktop-route-shell .hero-meta,
+.desktop-workbench .desktop-route-shell .hero-status-row {
+  gap: 6px !important;
+}
+
+.desktop-workbench .desktop-route-shell .hero-stat,
+.desktop-workbench .desktop-route-shell .hero-status-item {
+  min-height: 0;
+  padding: 8px 10px !important;
+  border: 1px solid #e1e8f0;
+  border-radius: 6px !important;
+  background: #f8fafc !important;
+  box-shadow: none !important;
+  transform: none !important;
+}
+
+.desktop-workbench .desktop-route-shell .table-card-toolbar,
+.desktop-workbench .desktop-route-shell .ctms-page-header,
+.desktop-workbench .desktop-route-shell .ctms-section-header {
+  min-height: 0;
+  padding: 9px 12px;
+  border-bottom-color: #d9e2ec;
+  gap: 8px;
+}
+
+.desktop-workbench .desktop-route-shell .toolbar-filters,
+.desktop-workbench .desktop-route-shell .toolbar-right,
+.desktop-workbench .desktop-route-shell .ctms-page-actions,
+.desktop-workbench .desktop-route-shell .ctms-section-actions {
+  gap: 8px;
+}
+
+.desktop-workbench .desktop-route-shell .el-card__header {
+  padding: 10px 12px;
+}
+
+.desktop-workbench .desktop-route-shell .el-card__body {
+  padding: 12px;
+}
+
+.desktop-workbench .desktop-route-shell .el-button {
+  min-height: 28px;
+  border-radius: 6px;
+}
+
+.desktop-workbench .desktop-route-shell .el-button--small {
+  min-height: 26px;
+  padding: 0 8px;
+}
+
+.desktop-workbench .desktop-route-shell .el-input__wrapper,
+.desktop-workbench .desktop-route-shell .el-select .el-input__wrapper,
+.desktop-workbench .desktop-route-shell .el-textarea__inner {
+  border-radius: 6px;
+  min-height: 30px;
+}
+
+.desktop-workbench .desktop-route-shell .el-form-item {
+  margin-bottom: 12px;
+}
+
+.desktop-workbench .desktop-route-shell .el-form-item__label,
+.desktop-workbench .desktop-route-shell .filter-label,
+.desktop-workbench .desktop-route-shell .ctms-filter-label {
+  font-size: 11px;
+  font-weight: 700;
+}
+
+.desktop-workbench .desktop-route-shell .form-section {
+  padding-bottom: 4px;
+}
+
+.desktop-workbench .desktop-route-shell .form-section + .form-section {
+  margin-top: 14px;
+  padding-top: 14px;
+}
+
+.desktop-workbench .desktop-route-shell .form-section-title,
+.desktop-workbench .desktop-route-shell .ctms-section-title {
+  margin-bottom: 10px;
+  font-size: 13px;
+}
+
+.desktop-workbench .desktop-route-shell .el-table th.el-table__cell {
+  height: 34px;
+  padding: 8px 10px;
+  border-bottom: 1px solid #d9e2ec !important;
+  background: #f4f7fa;
+  font-size: 11px;
+}
+
+.desktop-workbench .desktop-route-shell .el-table td.el-table__cell {
+  padding: 7px 10px;
+  border-bottom-color: #edf1f5;
+  font-size: 13px;
+}
+
+.desktop-workbench .desktop-route-shell .el-table--enable-row-hover .el-table__row:hover > td.el-table__cell {
+  background-color: #eef4fa;
+}
+
+.desktop-workbench .desktop-route-shell .el-descriptions__cell {
+  padding: 8px 10px;
+}
+
+.desktop-workbench .desktop-route-shell .el-drawer__header {
+  margin-bottom: 0;
+  padding: 14px 18px 8px;
+}
+
+.desktop-workbench .desktop-route-shell .el-drawer__body {
+  padding: 0 18px 4px;
+}
+
+.desktop-workbench .desktop-route-shell .el-drawer__footer {
+  padding: 10px 18px 14px;
+  border-top: 1px solid #d9e2ec;
+}
+
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .el-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .unified-shell,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .ctms-state,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .ctms-section-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .ctms-table-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .table-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .detail-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .stats-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .notifications-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .hero-card,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .hero-banner,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .faq-hero {
+  border-color: #26364a;
+  background: #172033;
+}
+
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .hero-stat,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .hero-status-item {
+  border-color: #26364a;
+  background: #111827 !important;
+}
+
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .table-card-toolbar,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .ctms-page-header,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .ctms-section-header,
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .el-drawer__footer {
+  border-color: #26364a;
+}
+
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .el-table th.el-table__cell {
+  border-bottom-color: #26364a !important;
+  background: #111827;
+}
+
+:root[data-ctms-theme="dark"] .desktop-workbench .desktop-route-shell .el-table td.el-table__cell {
+  border-bottom-color: #26364a;
+}
+
 /* ============================================================
  * 全局弹窗定位修复：弹窗仅显示在主内容区域，不覆盖左侧菜单栏
  * --ctms-sidebar-width 由 Layout.vue 在 body 上动态设置
diff --git a/frontend/src/utils/fileTaskFeedback.test.ts b/frontend/src/utils/fileTaskFeedback.test.ts
index 299e9657..1060451c 100644
--- a/frontend/src/utils/fileTaskFeedback.test.ts
+++ b/frontend/src/utils/fileTaskFeedback.test.ts
@@ -6,6 +6,9 @@ const pickFilesMock = vi.hoisted(() => vi.fn());
 const saveFileMock = vi.hoisted(() => vi.fn());
 const messageInfoMock = vi.hoisted(() => vi.fn());
 const messageSuccessMock = vi.hoisted(() => vi.fn());
+const finishActivityMock = vi.hoisted(() => vi.fn());
+const startActivityMock = vi.hoisted(() => vi.fn());
+const updateActivityMock = vi.hoisted(() => vi.fn());
 
 vi.mock("../runtime", () => ({
   clientRuntime: {
@@ -23,6 +26,12 @@ vi.mock("element-plus", () => ({
   },
 }));
 
+vi.mock("../session/desktopActivityCenter", () => ({
+  finishDesktopActivity: finishActivityMock,
+  startDesktopActivity: startActivityMock,
+  updateDesktopActivity: updateActivityMock,
+}));
+
 const output = {
   suggestedName: "report.pdf",
   mimeType: "application/pdf",
@@ -36,6 +45,7 @@ describe("file task feedback", () => {
     pickFilesMock.mockResolvedValue([]);
     saveFileMock.mockResolvedValue("saved");
     openFileMock.mockResolvedValue(undefined);
+    startActivityMock.mockReturnValue("activity-1");
   });
 
   it("reports native file picker selections", async () => {
@@ -70,16 +80,26 @@ describe("file task feedback", () => {
     expect(messageSuccessMock).toHaveBeenCalledWith("文件下载已开始");
   });
 
-  it("uses saved feedback for native save flows", async () => {
+  it("uses persistent desktop activity for native save flows", async () => {
     capabilitiesMock.mockReturnValue({ nativeFiles: true });
     const { saveFileWithFeedback } = await import("./fileTaskFeedback");
 
     await expect(saveFileWithFeedback(output)).resolves.toBe("saved");
 
-    expect(messageSuccessMock).toHaveBeenCalledWith("文件已保存");
+    expect(startActivityMock).toHaveBeenCalledWith({
+      kind: "download",
+      title: "保存文件",
+      detail: "等待选择保存位置",
+    });
+    expect(updateActivityMock).toHaveBeenCalledWith("activity-1", {
+      detail: "等待选择保存位置",
+      progress: 70,
+    });
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "completed", { detail: "文件已保存" });
+    expect(messageSuccessMock).not.toHaveBeenCalled();
   });
 
-  it("reports cancelled save flows without treating them as downloads", async () => {
+  it("reports cancelled web save flows without treating them as downloads", async () => {
     saveFileMock.mockResolvedValue("cancelled");
     const { saveFileWithFeedback } = await import("./fileTaskFeedback");
 
@@ -89,6 +109,17 @@ describe("file task feedback", () => {
     expect(messageSuccessMock).not.toHaveBeenCalled();
   });
 
+  it("reports cancelled native save flows through desktop activity", async () => {
+    capabilitiesMock.mockReturnValue({ nativeFiles: true });
+    saveFileMock.mockResolvedValue("cancelled");
+    const { saveFileWithFeedback } = await import("./fileTaskFeedback");
+
+    await expect(saveFileWithFeedback(output)).resolves.toBe("cancelled");
+
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "cancelled", { detail: "已取消保存" });
+    expect(messageInfoMock).not.toHaveBeenCalled();
+  });
+
   it("reports external open completion", async () => {
     const { openFileWithFeedback } = await import("./fileTaskFeedback");
 
@@ -97,4 +128,19 @@ describe("file task feedback", () => {
     expect(openFileMock).toHaveBeenCalledWith(output);
     expect(messageSuccessMock).toHaveBeenCalledWith("文件已打开");
   });
+
+  it("uses persistent desktop activity for native open flows", async () => {
+    capabilitiesMock.mockReturnValue({ nativeFiles: true });
+    const { openFileWithFeedback } = await import("./fileTaskFeedback");
+
+    await openFileWithFeedback(output);
+
+    expect(startActivityMock).toHaveBeenCalledWith({
+      kind: "open",
+      title: "打开文件",
+      detail: "正在准备文件",
+    });
+    expect(finishActivityMock).toHaveBeenCalledWith("activity-1", "completed", { detail: "已交给系统打开" });
+    expect(messageSuccessMock).not.toHaveBeenCalled();
+  });
 });
diff --git a/frontend/src/utils/fileTaskFeedback.ts b/frontend/src/utils/fileTaskFeedback.ts
index 7f436282..69bb3113 100644
--- a/frontend/src/utils/fileTaskFeedback.ts
+++ b/frontend/src/utils/fileTaskFeedback.ts
@@ -8,9 +8,25 @@ import {
   type FilePickerOptions,
   type SaveFileResult,
 } from "../runtime";
+import { finishDesktopActivity, startDesktopActivity, updateDesktopActivity } from "../session/desktopActivityCenter";
 
 const selectedFilesMessage = (count: number) => (count > 1 ? `已选择 ${count} 个文件` : "已选择 1 个文件");
 
+type FileSaveActivityKind = "download" | "export";
+
+export interface FileTaskFeedbackOptions {
+  activityId?: string;
+  kind?: FileSaveActivityKind;
+  title?: string;
+  pendingDetail?: string;
+  completedDetail?: string;
+  cancelledDetail?: string;
+}
+
+const desktopFileActivitiesEnabled = () => clientRuntime.capabilities().nativeFiles;
+
+const defaultSaveTitle = (kind: FileSaveActivityKind) => (kind === "export" ? "导出文件" : "保存文件");
+
 export const pickFilesWithFeedback = async (options: FilePickerOptions = {}): Promise<File[]> => {
   const files = await pickFiles(options);
   if (files.length) {
@@ -19,17 +35,62 @@ export const pickFilesWithFeedback = async (options: FilePickerOptions = {}): Pr
   return files;
 };
 
-export const saveFileWithFeedback = async (output: FileOutput): Promise<SaveFileResult> => {
-  const result = await saveFile(output);
-  if (result === "cancelled") {
-    ElMessage.info("已取消保存文件");
+export const saveFileWithFeedback = async (
+  output: FileOutput,
+  options: FileTaskFeedbackOptions = {},
+): Promise<SaveFileResult> => {
+  const kind = options.kind || "download";
+  if (!desktopFileActivitiesEnabled()) {
+    const result = await saveFile(output);
+    if (result === "cancelled") {
+      ElMessage.info("已取消保存文件");
+      return result;
+    }
+    ElMessage.success(clientRuntime.capabilities().nativeFiles ? "文件已保存" : "文件下载已开始");
     return result;
   }
-  ElMessage.success(clientRuntime.capabilities().nativeFiles ? "文件已保存" : "文件下载已开始");
-  return result;
+
+  const activityId = options.activityId || startDesktopActivity({
+    kind,
+    title: options.title || defaultSaveTitle(kind),
+    detail: options.pendingDetail || "等待选择保存位置",
+  });
+  updateDesktopActivity(activityId, { detail: options.pendingDetail || "等待选择保存位置", progress: 70 });
+  try {
+    const result = await saveFile(output);
+    if (result === "cancelled") {
+      finishDesktopActivity(activityId, "cancelled", { detail: options.cancelledDetail || "已取消保存" });
+      return result;
+    }
+    finishDesktopActivity(activityId, "completed", { detail: options.completedDetail || "文件已保存" });
+    return result;
+  } catch (error) {
+    finishDesktopActivity(activityId, "failed", { detail: "文件保存失败" });
+    throw error;
+  }
 };
 
-export const openFileWithFeedback = async (output: FileOutput): Promise<void> => {
-  await openFile(output);
-  ElMessage.success("文件已打开");
+export const openFileWithFeedback = async (
+  output: FileOutput,
+  options: Omit<FileTaskFeedbackOptions, "kind"> = {},
+): Promise<void> => {
+  if (!desktopFileActivitiesEnabled()) {
+    await openFile(output);
+    ElMessage.success("文件已打开");
+    return;
+  }
+
+  const activityId = options.activityId || startDesktopActivity({
+    kind: "open",
+    title: options.title || "打开文件",
+    detail: options.pendingDetail || "正在准备文件",
+  });
+  updateDesktopActivity(activityId, { detail: options.pendingDetail || "正在准备文件", progress: 70 });
+  try {
+    await openFile(output);
+    finishDesktopActivity(activityId, "completed", { detail: options.completedDetail || "已交给系统打开" });
+  } catch (error) {
+    finishDesktopActivity(activityId, "failed", { detail: "文件打开失败" });
+    throw error;
+  }
 };
diff --git a/frontend/src/views/documents/DocumentList.test.ts b/frontend/src/views/documents/DocumentList.test.ts
index 333221c5..0ab64b63 100644
--- a/frontend/src/views/documents/DocumentList.test.ts
+++ b/frontend/src/views/documents/DocumentList.test.ts
@@ -48,4 +48,34 @@ describe("DocumentList permissions", () => {
     expect(source).toContain("const displayValue = displayDateTime(value)");
     expect(source).not.toContain('replace("T", " ").replace("Z", "")');
   });
+
+  it("keeps desktop document browsing in a master detail workflow", () => {
+    const source = readSource();
+
+    expect(source).toContain("const isDesktop = isTauriRuntime();");
+    expect(source).toContain('class="document-workbench"');
+    expect(source).toContain('class="document-preview-pane"');
+    expect(source).toContain("selectedDocument");
+    expect(source).toContain('@row-click="handleDocumentRowClick"');
+    expect(source).toContain('@row-dblclick="openDocumentDetail"');
+    expect(source).toContain('@keydown.enter.prevent="openSelectedDocument"');
+    expect(source).toContain("selectDocument(row);");
+    expect(source).toContain("return;");
+    expect(source).toContain("goDetail(row.id);");
+    expect(source).not.toContain('@row-click="handleRowClick"');
+  });
+
+  it("routes desktop document actions through preview and context menu controls", () => {
+    const source = readSource();
+
+    expect(source).toContain('@row-contextmenu="openDocumentContextMenu"');
+    expect(source).toContain("documentContextMenu");
+    expect(source).toContain('class="document-context-menu"');
+    expect(source).toContain("@click=\"openSelectedDocument\"");
+    expect(source).toContain("@click=\"openSelectedDocumentEditor\"");
+    expect(source).toContain("@click=\"deleteSelectedDocument\"");
+    expect(source).toContain(':disabled="isInactiveSite(selectedDocument.site_id)"');
+    expect(source).toContain('v-if="!isDesktop && (canUpdate || canDelete)"');
+    expect(source).toContain('"row-selected"');
+  });
 });
diff --git a/frontend/src/views/documents/DocumentList.vue b/frontend/src/views/documents/DocumentList.vue
index c15b1b8b..e1c5377c 100644
--- a/frontend/src/views/documents/DocumentList.vue
+++ b/frontend/src/views/documents/DocumentList.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="page ctms-page-shell page--flush">
+  <div class="page ctms-page-shell page--flush" :class="{ 'document-page--desktop': isDesktop }" @click="closeDocumentContextMenu">
     <div class="main-content-flat unified-shell">
       <div class="filter-container unified-action-bar bar--flush">
         <el-form :inline="true" :model="filters" class="filter-form">
@@ -29,72 +29,148 @@
         </el-form>
       </div>
       <section class="unified-section document-table-section section--flush-x section--flush-top section--flush-bottom">
-        <el-table
-          :data="sortedItems"
-          v-loading="loading"
-          @row-click="handleRowClick"
-          :row-class-name="documentRowClass"
-          class="ctms-table"
-          table-layout="fixed"
-        >
-          <el-table-column prop="title" :label="TEXT.modules.fileVersionManagement.columns.title" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span class="font-semibold">{{ row.title }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column :label="TEXT.modules.fileVersionManagement.columns.scope">
-            <template #default="{ row }">
-              <el-tag
-                effect="plain"
-                :type="row.scope_type === 'SITE' ? 'warning' : 'success'"
-              >
-                {{ displayEnum(TEXT.enums.scopeType, row.scope_type) }}
-              </el-tag>
-            </template>
-          </el-table-column>
-          <el-table-column :label="TEXT.modules.fileVersionManagement.columns.site" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span>{{ displaySite(row.site_id) }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column :label="TEXT.modules.fileVersionManagement.columns.docType">
-            <template #default="{ row }">
-              <el-tag effect="plain" type="info">{{ displayText(row.doc_type, TEXT.enums.documentType) }}</el-tag>
-            </template>
-          </el-table-column>
-          <el-table-column :label="TEXT.modules.fileVersionManagement.columns.currentVersion">
-            <template #default="{ row }">
-              <span v-if="row.current_effective_version">{{ row.current_effective_version.version_no }}</span>
-              <span v-else class="text-secondary">-</span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="updated_at" :label="TEXT.modules.fileVersionManagement.columns.updatedAt" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span class="text-secondary datetime-stack">
-                <span>{{ splitDateTime(row.updated_at).date }}</span>
-                <span class="datetime-stack__time">{{ splitDateTime(row.updated_at).time }}</span>
-              </span>
-            </template>
-          </el-table-column>
-          <el-table-column v-if="canUpdate || canDelete" :label="TEXT.modules.fileVersionManagement.columns.actions" width="130" fixed="right">
-            <template #default="{ row }">
-              <div class="cell-actions">
-                <el-button v-if="canUpdate" link type="primary" size="small" :disabled="isInactiveSite(row.site_id)" @click.stop="openEdit(row)">
+        <div class="document-workbench" :class="{ 'is-desktop': isDesktop }">
+          <div class="document-table-pane" :tabindex="isDesktop ? 0 : undefined" @keydown.enter.prevent="openSelectedDocument">
+            <el-table
+              :data="sortedItems"
+              v-loading="loading"
+              @row-click="handleDocumentRowClick"
+              @row-dblclick="openDocumentDetail"
+              @row-contextmenu="openDocumentContextMenu"
+              :row-class-name="documentRowClass"
+              class="ctms-table"
+              highlight-current-row
+              table-layout="fixed"
+            >
+              <el-table-column prop="title" :label="TEXT.modules.fileVersionManagement.columns.title" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span class="font-semibold">{{ row.title }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column :label="TEXT.modules.fileVersionManagement.columns.scope">
+                <template #default="{ row }">
+                  <el-tag
+                    effect="plain"
+                    :type="row.scope_type === 'SITE' ? 'warning' : 'success'"
+                  >
+                    {{ displayEnum(TEXT.enums.scopeType, row.scope_type) }}
+                  </el-tag>
+                </template>
+              </el-table-column>
+              <el-table-column :label="TEXT.modules.fileVersionManagement.columns.site" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span>{{ displaySite(row.site_id) }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column :label="TEXT.modules.fileVersionManagement.columns.docType">
+                <template #default="{ row }">
+                  <el-tag effect="plain" type="info">{{ displayText(row.doc_type, TEXT.enums.documentType) }}</el-tag>
+                </template>
+              </el-table-column>
+              <el-table-column :label="TEXT.modules.fileVersionManagement.columns.currentVersion">
+                <template #default="{ row }">
+                  <span v-if="row.current_effective_version">{{ row.current_effective_version.version_no }}</span>
+                  <span v-else class="text-secondary">-</span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="updated_at" :label="TEXT.modules.fileVersionManagement.columns.updatedAt" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span class="text-secondary datetime-stack">
+                    <span>{{ splitDateTime(row.updated_at).date }}</span>
+                    <span class="datetime-stack__time">{{ splitDateTime(row.updated_at).time }}</span>
+                  </span>
+                </template>
+              </el-table-column>
+              <el-table-column v-if="!isDesktop && (canUpdate || canDelete)" :label="TEXT.modules.fileVersionManagement.columns.actions" width="130" fixed="right">
+                <template #default="{ row }">
+                  <div class="cell-actions">
+                    <el-button v-if="canUpdate" link type="primary" size="small" :disabled="isInactiveSite(row.site_id)" @click.stop="openEdit(row)">
+                      {{ TEXT.common.actions.edit }}
+                    </el-button>
+                    <el-button v-if="canDelete" link type="danger" size="small" :disabled="isInactiveSite(row.site_id)" @click.stop="confirmDelete(row)">
+                       {{ TEXT.common.actions.delete }}
+                    </el-button>
+                  </div>
+                </template>
+              </el-table-column>
+              <template #empty>
+                <el-empty :description="TEXT.modules.fileVersionManagement.emptyDescription" />
+              </template>
+            </el-table>
+          </div>
+
+          <aside v-if="isDesktop" class="document-preview-pane">
+            <template v-if="selectedDocument">
+              <div class="preview-head">
+                <div>
+                  <div class="preview-kicker">当前文档</div>
+                  <div class="preview-title">{{ selectedDocument.title || TEXT.common.fallback }}</div>
+                </div>
+                <el-button size="small" type="primary" @click="openSelectedDocument">打开详情</el-button>
+              </div>
+              <dl class="preview-list">
+                <dt>{{ TEXT.modules.fileVersionManagement.columns.scope }}</dt>
+                <dd>{{ displayEnum(TEXT.enums.scopeType, selectedDocument.scope_type) }}</dd>
+                <dt>{{ TEXT.modules.fileVersionManagement.columns.site }}</dt>
+                <dd>{{ displaySite(selectedDocument.site_id) }}</dd>
+                <dt>{{ TEXT.modules.fileVersionManagement.columns.docType }}</dt>
+                <dd>{{ displayText(selectedDocument.doc_type, TEXT.enums.documentType) }}</dd>
+                <dt>{{ TEXT.modules.fileVersionManagement.columns.currentVersion }}</dt>
+                <dd>{{ selectedDocument.current_effective_version?.version_no || TEXT.common.fallback }}</dd>
+                <dt>{{ TEXT.modules.fileVersionManagement.columns.updatedAt }}</dt>
+                <dd>{{ displayDateTime(selectedDocument.updated_at) }}</dd>
+              </dl>
+              <div class="preview-actions">
+                <el-button size="small" @click="openSelectedDocument">打开详情</el-button>
+                <el-button v-if="canUpdate" size="small" :disabled="isInactiveSite(selectedDocument.site_id)" @click="openSelectedDocumentEditor">
                   {{ TEXT.common.actions.edit }}
                 </el-button>
-                <el-button v-if="canDelete" link type="danger" size="small" :disabled="isInactiveSite(row.site_id)" @click.stop="confirmDelete(row)">
-                   {{ TEXT.common.actions.delete }}
+                <el-button
+                  v-if="canDelete"
+                  size="small"
+                  type="danger"
+                  plain
+                  :disabled="isInactiveSite(selectedDocument.site_id)"
+                  @click="deleteSelectedDocument"
+                >
+                  {{ TEXT.common.actions.delete }}
                 </el-button>
               </div>
             </template>
-          </el-table-column>
-          <template #empty>
-            <el-empty :description="TEXT.modules.fileVersionManagement.emptyDescription" />
-          </template>
-        </el-table>
+            <div v-else class="preview-empty">
+              <span>选择一行查看文档摘要</span>
+            </div>
+          </aside>
+        </div>
       </section>
     </div>
 
+    <div
+      v-if="isDesktop && documentContextMenu.visible && selectedDocument"
+      class="document-context-menu"
+      :style="{ left: `${documentContextMenu.x}px`, top: `${documentContextMenu.y}px` }"
+      @click.stop
+    >
+      <button type="button" @click="openSelectedDocument">打开详情</button>
+      <button
+        v-if="canUpdate"
+        type="button"
+        :disabled="isInactiveSite(selectedDocument.site_id)"
+        @click="openSelectedDocumentEditor"
+      >
+        {{ TEXT.common.actions.edit }}
+      </button>
+      <button
+        v-if="canDelete"
+        type="button"
+        class="danger"
+        :disabled="isInactiveSite(selectedDocument.site_id)"
+        @click="deleteSelectedDocument"
+      >
+        {{ TEXT.common.actions.delete }}
+      </button>
+    </div>
+
     <el-drawer
       v-if="editorVisible"
       v-model="editorVisible"
@@ -179,6 +255,7 @@ import type { Site } from "../../types/api";
 import { displayDateTime, displayEnum, displayText } from "../../utils/display";
 import { TEXT } from "../../locales";
 import { onDesktopRefreshCurrentView } from "../../composables/useDesktopRefresh";
+import { isTauriRuntime } from "../../runtime";
 
 const route = useRoute();
 const router = useRouter();
@@ -192,6 +269,9 @@ const editorVisible = ref(false);
 const saving = ref(false);
 const editingDocumentId = ref("");
 const editorFormRef = ref<FormInstance>();
+const isDesktop = isTauriRuntime();
+const selectedDocumentId = ref("");
+const documentContextMenu = ref({ visible: false, x: 0, y: 0 });
 let desktopRefreshCleanup: (() => void) | undefined;
 
 const trialId = computed(() => (route.params.trialId as string) || "");
@@ -228,7 +308,13 @@ const canUpdate = computed(() => can("documents.update"));
 const canDelete = computed(() => can("documents.delete"));
 const isInactiveSite = (siteId?: string | null) => !!siteId && siteActiveMap.value[siteId] === false;
 const documentRowClass = ({ row }: { row: DocumentSummary }) =>
-  `${row?.id ? "clickable-row" : ""}${isInactiveSite(row?.site_id) ? " row-inactive" : ""}`.trim();
+  [
+    row?.id ? "clickable-row" : "",
+    isInactiveSite(row?.site_id) ? "row-inactive" : "",
+    isDesktop && row?.id === selectedDocumentId.value ? "row-selected" : "",
+  ]
+    .filter(Boolean)
+    .join(" ");
 const filteredItems = computed(() =>
   items.value.filter((item) => {
     if (filters.scope_type && item?.scope_type !== filters.scope_type) return false;
@@ -240,6 +326,9 @@ const filteredItems = computed(() =>
 const sortedItems = computed(() =>
   [...filteredItems.value].sort((a, b) => Number(isInactiveSite(a?.site_id)) - Number(isInactiveSite(b?.site_id)))
 );
+const selectedDocument = computed(() =>
+  sortedItems.value.find((item) => item.id === selectedDocumentId.value) || null
+);
 
 const editorForm = reactive({
   doc_no: "",
@@ -402,11 +491,60 @@ const submitEditor = async () => {
 
 const goDetail = (id: string) => router.push(`/documents/${id}`);
 
-const handleRowClick = (row: DocumentSummary) => {
+const selectDocument = (row: DocumentSummary) => {
   if (!row?.id) return;
+  selectedDocumentId.value = row.id;
+};
+
+const handleDocumentRowClick = (row: DocumentSummary) => {
+  if (!row?.id) return;
+  if (isDesktop) {
+    selectDocument(row);
+    return;
+  }
   goDetail(row.id);
 };
 
+const openDocumentDetail = (row?: DocumentSummary | null) => {
+  const target = row?.id ? row : selectedDocument.value;
+  if (target?.id) goDetail(target.id);
+};
+
+const openSelectedDocument = () => {
+  closeDocumentContextMenu();
+  openDocumentDetail(selectedDocument.value);
+};
+
+const openSelectedDocumentEditor = () => {
+  const target = selectedDocument.value;
+  closeDocumentContextMenu();
+  if (target) openEdit(target);
+};
+
+const deleteSelectedDocument = () => {
+  const target = selectedDocument.value;
+  closeDocumentContextMenu();
+  if (target) {
+    void confirmDelete(target);
+  }
+};
+
+const closeDocumentContextMenu = () => {
+  if (!documentContextMenu.value.visible) return;
+  documentContextMenu.value = { visible: false, x: 0, y: 0 };
+};
+
+const openDocumentContextMenu = (row: DocumentSummary, _column: unknown, event: MouseEvent) => {
+  if (!isDesktop || !row?.id) return;
+  event.preventDefault();
+  selectDocument(row);
+  documentContextMenu.value = {
+    visible: true,
+    x: Math.min(event.clientX, window.innerWidth - 184),
+    y: Math.min(event.clientY, window.innerHeight - 132),
+  };
+};
+
 const confirmDelete = async (row: DocumentSummary) => {
   if (!canDelete.value) {
     ElMessage.warning("权限不足");
@@ -457,6 +595,22 @@ watch(
     }
   }
 );
+
+watch(
+  () => sortedItems.value.map((item) => item.id).join("|"),
+  () => {
+    if (!isDesktop) return;
+    const rows = sortedItems.value;
+    if (!rows.length) {
+      selectedDocumentId.value = "";
+      return;
+    }
+    if (!rows.some((item) => item.id === selectedDocumentId.value)) {
+      selectedDocumentId.value = rows[0].id;
+    }
+  },
+  { immediate: true }
+);
 </script>
 
 <style scoped>
@@ -551,6 +705,147 @@ watch(
     0 2px 8px rgba(0, 0, 0, 0.02);
 }
 
+.document-workbench {
+  min-width: 0;
+  min-height: 0;
+}
+
+.document-workbench.is-desktop {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 304px;
+  min-height: min(570px, calc(100vh - 178px));
+}
+
+.document-table-pane {
+  min-width: 0;
+  outline: none;
+}
+
+.document-workbench.is-desktop .document-table-pane {
+  border-right: 1px solid #e3e9f1;
+}
+
+.document-preview-pane {
+  display: flex;
+  min-width: 0;
+  min-height: 0;
+  flex-direction: column;
+  gap: 16px;
+  padding: 16px;
+  background: #f8fafc;
+}
+
+.preview-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.preview-kicker {
+  margin-bottom: 5px;
+  color: #6b7e95;
+  font-size: 11px;
+  font-weight: 800;
+}
+
+.preview-title {
+  display: -webkit-box;
+  overflow: hidden;
+  color: #142033;
+  font-size: 17px;
+  font-weight: 800;
+  line-height: 1.35;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 3;
+}
+
+.preview-list {
+  display: grid;
+  grid-template-columns: 76px minmax(0, 1fr);
+  gap: 10px 12px;
+  margin: 0;
+}
+
+.preview-list dt {
+  color: #7b8da3;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.preview-list dd {
+  min-width: 0;
+  margin: 0;
+  overflow-wrap: anywhere;
+  color: #223349;
+  font-size: 13px;
+  font-weight: 650;
+}
+
+.preview-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: auto;
+}
+
+.preview-empty {
+  display: flex;
+  min-height: 180px;
+  align-items: center;
+  justify-content: center;
+  color: #7b8da3;
+  font-size: 13px;
+  font-weight: 700;
+  text-align: center;
+}
+
+.document-context-menu {
+  position: fixed;
+  z-index: 2300;
+  display: flex;
+  width: 172px;
+  flex-direction: column;
+  gap: 2px;
+  padding: 6px;
+  border: 1px solid #cbd7e5;
+  border-radius: 8px;
+  background: #ffffff;
+  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.16);
+}
+
+.document-context-menu button {
+  appearance: none;
+  display: flex;
+  align-items: center;
+  width: 100%;
+  min-height: 30px;
+  padding: 0 9px;
+  border: 0;
+  border-radius: 6px;
+  background: transparent;
+  color: #223349;
+  cursor: pointer;
+  font: inherit;
+  font-size: 12px;
+  font-weight: 700;
+  text-align: left;
+}
+
+.document-context-menu button:hover:not(:disabled) {
+  background: #eef4fb;
+  color: #183756;
+}
+
+.document-context-menu button.danger {
+  color: #b42318;
+}
+
+.document-context-menu button:disabled {
+  cursor: not-allowed;
+  color: #9aaabd;
+}
+
 .ctms-table {
   --el-table-border-color: transparent;
   --el-table-row-hover-bg-color: #f8f9fb;
@@ -583,6 +878,10 @@ watch(
   transition: background 0.1s ease;
 }
 
+.ctms-table :deep(.el-table__body tr.row-selected > td) {
+  background: #eaf1f8 !important;
+}
+
 .ctms-table :deep(.font-semibold) {
   font-weight: 600;
   color: #0a0a0a;
@@ -628,6 +927,44 @@ watch(
 .ctms-table :deep(.cell-actions .el-button + .el-button) {
   margin-left: 0;
 }
+
+:global([data-ctms-theme="dark"] .document-page--desktop .document-table-section) {
+  background: #172033;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .document-preview-pane) {
+  border-color: #26364a;
+  background: #111827;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .preview-title),
+:global([data-ctms-theme="dark"] .document-page--desktop .preview-list dd) {
+  color: #f8fafc;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .preview-kicker),
+:global([data-ctms-theme="dark"] .document-page--desktop .preview-list dt),
+:global([data-ctms-theme="dark"] .document-page--desktop .preview-empty) {
+  color: #94a3b8;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .document-context-menu) {
+  border-color: #334155;
+  background: #172033;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .document-context-menu button) {
+  color: #dbe5f1;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .document-context-menu button:hover:not(:disabled)) {
+  background: #243247;
+  color: #bfdbfe;
+}
+
+:global([data-ctms-theme="dark"] .document-page--desktop .ctms-table .el-table__body tr.row-selected > td) {
+  background: #243247 !important;
+}
 </style>
 
 <style>
diff --git a/frontend/src/views/ia/DrugShipments.test.ts b/frontend/src/views/ia/DrugShipments.test.ts
index e458eff4..944848f6 100644
--- a/frontend/src/views/ia/DrugShipments.test.ts
+++ b/frontend/src/views/ia/DrugShipments.test.ts
@@ -85,4 +85,36 @@ describe("DrugShipments project permissions", () => {
     expect(source).toContain('status === "EXCEPTION"');
     expect(source).not.toContain('remark: [{ required: true');
   });
+
+  it("keeps desktop shipment browsing in a master detail workflow", () => {
+    const source = readSource();
+
+    expect(source).toContain("const isDesktop = isTauriRuntime();");
+    expect(source).toContain('class="shipment-workbench"');
+    expect(source).toContain('class="shipment-preview-pane"');
+    expect(source).toContain('ref="shipmentTablePaneRef"');
+    expect(source).toContain("selectedShipment");
+    expect(source).toContain('@row-click="handleShipmentRowClick"');
+    expect(source).toContain('@row-dblclick="openShipmentDetail"');
+    expect(source).toContain('@keydown.enter.prevent="openSelectedShipment"');
+    expect(source).toContain("selectShipment(row);");
+    expect(source).toContain("shipmentTablePaneRef.value?.focus({ preventScroll: true });");
+    expect(source).toContain("return;");
+    expect(source).toContain("router.push(`/drug/shipments/${row.id}`);");
+    expect(source).not.toContain('@row-click="onRowClick"');
+  });
+
+  it("routes desktop shipment actions through preview and context menu controls", () => {
+    const source = readSource();
+
+    expect(source).toContain('@row-contextmenu="openShipmentContextMenu"');
+    expect(source).toContain("shipmentContextMenu");
+    expect(source).toContain('class="shipment-context-menu"');
+    expect(source).toContain('@click="openSelectedShipment"');
+    expect(source).toContain('@click="openSelectedShipmentEditor"');
+    expect(source).toContain('@click="removeSelectedShipment"');
+    expect(source).toContain(':disabled="isInactiveSite(selectedShipment.center_id)"');
+    expect(source).toContain('v-if="!isDesktop && (canUpdate || canDelete)"');
+    expect(source).toContain('"row-selected"');
+  });
 });
diff --git a/frontend/src/views/ia/DrugShipments.vue b/frontend/src/views/ia/DrugShipments.vue
index 9acbf286..69ea01cb 100644
--- a/frontend/src/views/ia/DrugShipments.vue
+++ b/frontend/src/views/ia/DrugShipments.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="page">
+  <div class="page" :class="{ 'shipment-page--desktop': isDesktop }" @click="closeShipmentContextMenu">
     <div v-if="study.currentStudy" class="page-inner">
       <!-- ==================== 表格卡片（含筛选栏） ==================== -->
       <div class="table-card">
@@ -47,85 +47,174 @@
             </el-button>
           </div>
         </div>
-        <el-table
-          v-loading="loading"
-          :data="sortedItems"
-          class="shipment-table"
-          style="width: 100%"
-          table-layout="fixed"
-          :row-class-name="shipmentRowClass"
-          @row-click="onRowClick"
-        >
-          <el-table-column prop="site_name" :label="TEXT.common.fields.site" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span class="cell-primary cell-nowrap">{{ row.site_name || TEXT.common.fallback }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="direction" :label="TEXT.common.fields.direction">
-            <template #default="{ row }">
-              <span :class="['dir-tag', row.direction === 'SEND' ? 'dir-tag--send' : 'dir-tag--return']">
-                {{ displayEnum(TEXT.enums.shipmentDirection, row.direction) }}
-              </span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="ship_date" :label="TEXT.common.fields.shipDate">
-            <template #default="{ row }"><span class="cell-nowrap">{{ displayDate(row.ship_date) }}</span></template>
-          </el-table-column>
-          <el-table-column prop="receive_date" :label="TEXT.common.fields.receiveDate">
-            <template #default="{ row }"><span class="cell-nowrap">{{ displayDate(row.receive_date) }}</span></template>
-          </el-table-column>
-          <el-table-column prop="quantity" :label="TEXT.common.fields.quantity">
-            <template #default="{ row }">
-              <span class="cell-mono cell-nowrap">{{ typeof row.quantity === "number" ? row.quantity : TEXT.common.fallback }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="batch_no" :label="TEXT.common.fields.batchNo" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span class="cell-mono cell-nowrap">{{ row.batch_no || TEXT.common.fallback }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="status" :label="TEXT.common.fields.status">
-            <template #default="{ row }">
-              <span :class="['status-pill', `status-pill--${statusType(row.status)}`]">
-                {{ displayEnum(TEXT.enums.shipmentStatus, row.status) }}
-              </span>
-            </template>
-          </el-table-column>
-          <el-table-column prop="remark" :label="TEXT.common.fields.remark" show-overflow-tooltip>
-            <template #default="{ row }">
-              <span class="cell-muted cell-nowrap">{{ row.remark || TEXT.common.fallback }}</span>
-            </template>
-          </el-table-column>
-          <el-table-column v-if="canUpdate || canDelete" :label="TEXT.common.labels.actions" fixed="right">
-            <template #default="{ row }">
-              <div class="cell-actions">
-                <el-button v-if="canUpdate" link type="primary" size="small" @click.stop="openEdit(row)">{{ TEXT.common.actions.edit }}</el-button>
+        <div class="shipment-workbench" :class="{ 'is-desktop': isDesktop }">
+          <div
+            ref="shipmentTablePaneRef"
+            class="shipment-table-pane"
+            :tabindex="isDesktop ? 0 : undefined"
+            @keydown.enter.prevent="openSelectedShipment"
+          >
+            <el-table
+              v-loading="loading"
+              :data="sortedItems"
+              class="shipment-table"
+              style="width: 100%"
+              table-layout="fixed"
+              highlight-current-row
+              :row-class-name="shipmentRowClass"
+              @row-click="handleShipmentRowClick"
+              @row-dblclick="openShipmentDetail"
+              @row-contextmenu="openShipmentContextMenu"
+            >
+              <el-table-column prop="site_name" :label="TEXT.common.fields.site" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span class="cell-primary cell-nowrap">{{ row.site_name || TEXT.common.fallback }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="direction" :label="TEXT.common.fields.direction">
+                <template #default="{ row }">
+                  <span :class="['dir-tag', row.direction === 'SEND' ? 'dir-tag--send' : 'dir-tag--return']">
+                    {{ displayEnum(TEXT.enums.shipmentDirection, row.direction) }}
+                  </span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="ship_date" :label="TEXT.common.fields.shipDate">
+                <template #default="{ row }"><span class="cell-nowrap">{{ displayDate(row.ship_date) }}</span></template>
+              </el-table-column>
+              <el-table-column prop="receive_date" :label="TEXT.common.fields.receiveDate">
+                <template #default="{ row }"><span class="cell-nowrap">{{ displayDate(row.receive_date) }}</span></template>
+              </el-table-column>
+              <el-table-column prop="quantity" :label="TEXT.common.fields.quantity">
+                <template #default="{ row }">
+                  <span class="cell-mono cell-nowrap">{{ typeof row.quantity === "number" ? row.quantity : TEXT.common.fallback }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="batch_no" :label="TEXT.common.fields.batchNo" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span class="cell-mono cell-nowrap">{{ row.batch_no || TEXT.common.fallback }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="status" :label="TEXT.common.fields.status">
+                <template #default="{ row }">
+                  <span :class="['status-pill', `status-pill--${statusType(row.status)}`]">
+                    {{ displayEnum(TEXT.enums.shipmentStatus, row.status) }}
+                  </span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="remark" :label="TEXT.common.fields.remark" show-overflow-tooltip>
+                <template #default="{ row }">
+                  <span class="cell-muted cell-nowrap">{{ row.remark || TEXT.common.fallback }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column v-if="!isDesktop && (canUpdate || canDelete)" :label="TEXT.common.labels.actions" fixed="right">
+                <template #default="{ row }">
+                  <div class="cell-actions">
+                    <el-button v-if="canUpdate" link type="primary" size="small" @click.stop="openEdit(row)">{{ TEXT.common.actions.edit }}</el-button>
+                    <el-button
+                      v-if="canDelete"
+                      link
+                      type="danger"
+                      size="small"
+                      :disabled="isInactiveSite(row.center_id)"
+                      @click.stop="remove(row)"
+                    >
+                      {{ TEXT.common.actions.delete }}
+                    </el-button>
+                  </div>
+                </template>
+              </el-table-column>
+              <template #empty>
+                <div v-if="!loading" class="table-empty">
+                  <div class="empty-icon">
+                    <svg width="32" height="32" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="2" y="3" width="20" height="14" rx="2" ry="2"/><line x1="8" y1="21" x2="16" y2="21"/><line x1="12" y1="17" x2="12" y2="21"/></svg>
+                  </div>
+                  <span>{{ TEXT.modules.drugShipments.empty }}</span>
+                </div>
+              </template>
+            </el-table>
+          </div>
+
+          <aside v-if="isDesktop" class="shipment-preview-pane">
+            <template v-if="selectedShipment">
+              <div class="preview-head">
+                <div>
+                  <div class="preview-kicker">当前发运</div>
+                  <div class="preview-title">{{ selectedShipment.site_name || TEXT.common.fallback }}</div>
+                </div>
+                <el-button size="small" type="primary" @click="openSelectedShipment">打开详情</el-button>
+              </div>
+              <dl class="preview-list">
+                <dt>{{ TEXT.common.fields.direction }}</dt>
+                <dd>{{ displayEnum(TEXT.enums.shipmentDirection, selectedShipment.direction) }}</dd>
+                <dt>{{ TEXT.common.fields.status }}</dt>
+                <dd>{{ displayEnum(TEXT.enums.shipmentStatus, selectedShipment.status) }}</dd>
+                <dt>{{ TEXT.common.fields.shipDate }}</dt>
+                <dd>{{ displayDate(selectedShipment.ship_date) }}</dd>
+                <dt>{{ TEXT.common.fields.receiveDate }}</dt>
+                <dd>{{ displayDate(selectedShipment.receive_date) }}</dd>
+                <dt>{{ TEXT.common.fields.quantity }}</dt>
+                <dd>{{ typeof selectedShipment.quantity === "number" ? selectedShipment.quantity : TEXT.common.fallback }}</dd>
+                <dt>{{ TEXT.common.fields.batchNo }}</dt>
+                <dd>{{ selectedShipment.batch_no || TEXT.common.fallback }}</dd>
+                <dt>{{ TEXT.common.fields.carrier }}</dt>
+                <dd>{{ selectedShipment.carrier || TEXT.common.fallback }}</dd>
+                <dt>{{ TEXT.common.fields.trackingNo }}</dt>
+                <dd>{{ selectedShipment.tracking_no || TEXT.common.fallback }}</dd>
+                <dt>{{ TEXT.common.fields.remark }}</dt>
+                <dd>{{ selectedShipment.remark || TEXT.common.fallback }}</dd>
+              </dl>
+              <div class="preview-actions">
+                <el-button size="small" @click="openSelectedShipment">打开详情</el-button>
+                <el-button v-if="canUpdate" size="small" :disabled="isInactiveSite(selectedShipment.center_id)" @click="openSelectedShipmentEditor">
+                  {{ TEXT.common.actions.edit }}
+                </el-button>
                 <el-button
                   v-if="canDelete"
-                  link
-                  type="danger"
                   size="small"
-                  :disabled="isInactiveSite(row.center_id)"
-                  @click.stop="remove(row)"
+                  type="danger"
+                  plain
+                  :disabled="isInactiveSite(selectedShipment.center_id)"
+                  @click="removeSelectedShipment"
                 >
                   {{ TEXT.common.actions.delete }}
                 </el-button>
               </div>
             </template>
-          </el-table-column>
-          <template #empty>
-            <div v-if="!loading" class="table-empty">
-              <div class="empty-icon">
-                <svg width="32" height="32" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><rect x="2" y="3" width="20" height="14" rx="2" ry="2"/><line x1="8" y1="21" x2="16" y2="21"/><line x1="12" y1="17" x2="12" y2="21"/></svg>
-              </div>
-              <span>{{ TEXT.modules.drugShipments.empty }}</span>
+            <div v-else class="preview-empty">
+              <span>选择一行查看发运摘要</span>
             </div>
-          </template>
-        </el-table>
+          </aside>
+        </div>
       </div>
     </div>
     <StateEmpty v-else :description="TEXT.common.empty.selectProject" />
 
+    <div
+      v-if="isDesktop && shipmentContextMenu.visible && selectedShipment"
+      class="shipment-context-menu"
+      :style="{ left: `${shipmentContextMenu.x}px`, top: `${shipmentContextMenu.y}px` }"
+      @click.stop
+    >
+      <button type="button" @click="openSelectedShipment">打开详情</button>
+      <button
+        v-if="canUpdate"
+        type="button"
+        :disabled="isInactiveSite(selectedShipment.center_id)"
+        @click="openSelectedShipmentEditor"
+      >
+        {{ TEXT.common.actions.edit }}
+      </button>
+      <button
+        v-if="canDelete"
+        type="button"
+        class="danger"
+        :disabled="isInactiveSite(selectedShipment.center_id)"
+        @click="removeSelectedShipment"
+      >
+        {{ TEXT.common.actions.delete }}
+      </button>
+    </div>
+
     <!-- ==================== 编辑抽屉 ==================== -->
     <el-drawer
       v-if="drawerVisible"
@@ -290,6 +379,7 @@ import { displayDate, displayEnum } from "../../utils/display";
 import { isApiPermissionAllowed } from "../../utils/apiPermissionValue";
 import { isSystemAdmin } from "../../utils/roles";
 import { useDrawerDirtyGuard } from "../../utils/drawerDirtyGuard";
+import { isTauriRuntime } from "../../runtime";
 
 type ShipmentDirection = "SEND" | "RETURN";
 type ShipmentStatus = "PENDING" | "IN_TRANSIT" | "SIGNED" | "EXCEPTION";
@@ -322,6 +412,10 @@ const drawerVisible = ref(false);
 const editingId = ref("");
 const formRef = ref<FormInstance>();
 const attachmentPanelRef = ref<InstanceType<typeof AttachmentList> | null>(null);
+const shipmentTablePaneRef = ref<HTMLElement | null>(null);
+const isDesktop = isTauriRuntime();
+const selectedShipmentId = ref("");
+const shipmentContextMenu = ref({ visible: false, x: 0, y: 0 });
 const filters = reactive({
   center_id: study.currentSite?.id || "",
   direction: "" as "" | ShipmentDirection,
@@ -363,6 +457,9 @@ const isFormReadOnly = computed(() => (editingId.value ? !canUpdate.value : !can
 const sortedItems = computed(() =>
   [...items.value].sort((a, b) => Number(isInactiveSite(a?.center_id)) - Number(isInactiveSite(b?.center_id)))
 );
+const selectedShipment = computed(() =>
+  sortedItems.value.find((item) => item.id === selectedShipmentId.value) || null
+);
 const requiresShipmentDetails = (status: ShipmentStatus) => status !== "PENDING";
 const requiresReceiveDate = (status: ShipmentStatus) => status === "SIGNED";
 const requiresRemark = (status: ShipmentStatus) => status === "EXCEPTION";
@@ -564,12 +661,69 @@ const handleSearch = () => {
 
 const isInactiveSite = (siteId?: string) => !!siteId && siteActiveMap.value[siteId] === false;
 const shipmentRowClass = ({ row }: { row: ShipmentRow }) =>
-  `${row?.id ? "clickable-row" : ""}${isInactiveSite(row?.center_id) ? " row-inactive" : ""}`.trim();
-const onRowClick = (row: ShipmentRow) => {
+  [
+    row?.id ? "clickable-row" : "",
+    isInactiveSite(row?.center_id) ? "row-inactive" : "",
+    isDesktop && row?.id === selectedShipmentId.value ? "row-selected" : "",
+  ]
+    .filter(Boolean)
+    .join(" ");
+
+const selectShipment = (row: ShipmentRow) => {
   if (!row?.id) return;
+  selectedShipmentId.value = row.id;
+  shipmentTablePaneRef.value?.focus({ preventScroll: true });
+};
+
+const handleShipmentRowClick = (row: ShipmentRow) => {
+  if (!row?.id) return;
+  if (isDesktop) {
+    selectShipment(row);
+    return;
+  }
   router.push(`/drug/shipments/${row.id}`);
 };
 
+const openShipmentDetail = (row?: ShipmentRow | null) => {
+  const target = row?.id ? row : selectedShipment.value;
+  if (target?.id) router.push(`/drug/shipments/${target.id}`);
+};
+
+const openSelectedShipment = () => {
+  closeShipmentContextMenu();
+  openShipmentDetail(selectedShipment.value);
+};
+
+const openSelectedShipmentEditor = () => {
+  const target = selectedShipment.value;
+  closeShipmentContextMenu();
+  if (target) openEdit(target);
+};
+
+const removeSelectedShipment = () => {
+  const target = selectedShipment.value;
+  closeShipmentContextMenu();
+  if (target) {
+    void remove(target);
+  }
+};
+
+const closeShipmentContextMenu = () => {
+  if (!shipmentContextMenu.value.visible) return;
+  shipmentContextMenu.value = { visible: false, x: 0, y: 0 };
+};
+
+const openShipmentContextMenu = (row: ShipmentRow, _column: unknown, event: MouseEvent) => {
+  if (!isDesktop || !row?.id) return;
+  event.preventDefault();
+  selectShipment(row);
+  shipmentContextMenu.value = {
+    visible: true,
+    x: Math.max(8, Math.min(event.clientX, window.innerWidth - 184)),
+    y: Math.max(8, Math.min(event.clientY, window.innerHeight - 132)),
+  };
+};
+
 const statusType = (status: string) => {
   switch (status) {
     case "PENDING": return "info";
@@ -633,6 +787,22 @@ watch(
   }
 );
 
+watch(
+  () => sortedItems.value.map((item) => item.id).join("|"),
+  () => {
+    if (!isDesktop) return;
+    const rows = sortedItems.value;
+    if (!rows.length) {
+      selectedShipmentId.value = "";
+      return;
+    }
+    if (!rows.some((item) => item.id === selectedShipmentId.value)) {
+      selectedShipmentId.value = rows[0].id;
+    }
+  },
+  { immediate: true }
+);
+
 onMounted(async () => {
   await loadSites();
   await load();
@@ -733,6 +903,147 @@ onMounted(async () => {
     0 2px 8px rgba(0, 0, 0, 0.02);
 }
 
+.shipment-workbench {
+  min-width: 0;
+  min-height: 0;
+}
+
+.shipment-workbench.is-desktop {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 316px;
+  min-height: min(590px, calc(100vh - 186px));
+}
+
+.shipment-table-pane {
+  min-width: 0;
+  outline: none;
+}
+
+.shipment-workbench.is-desktop .shipment-table-pane {
+  border-right: 1px solid #e3e9f1;
+}
+
+.shipment-preview-pane {
+  display: flex;
+  min-width: 0;
+  min-height: 0;
+  flex-direction: column;
+  gap: 16px;
+  padding: 16px;
+  background: #f8fafc;
+}
+
+.preview-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 12px;
+}
+
+.preview-kicker {
+  margin-bottom: 5px;
+  color: #6b7e95;
+  font-size: 11px;
+  font-weight: 800;
+}
+
+.preview-title {
+  display: -webkit-box;
+  overflow: hidden;
+  color: #142033;
+  font-size: 17px;
+  font-weight: 800;
+  line-height: 1.35;
+  -webkit-box-orient: vertical;
+  -webkit-line-clamp: 3;
+}
+
+.preview-list {
+  display: grid;
+  grid-template-columns: 78px minmax(0, 1fr);
+  gap: 10px 12px;
+  margin: 0;
+}
+
+.preview-list dt {
+  color: #7b8da3;
+  font-size: 12px;
+  font-weight: 700;
+}
+
+.preview-list dd {
+  min-width: 0;
+  margin: 0;
+  overflow-wrap: anywhere;
+  color: #223349;
+  font-size: 13px;
+  font-weight: 650;
+}
+
+.preview-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  margin-top: auto;
+}
+
+.preview-empty {
+  display: flex;
+  min-height: 180px;
+  align-items: center;
+  justify-content: center;
+  color: #7b8da3;
+  font-size: 13px;
+  font-weight: 700;
+  text-align: center;
+}
+
+.shipment-context-menu {
+  position: fixed;
+  z-index: 2300;
+  display: flex;
+  width: 172px;
+  flex-direction: column;
+  gap: 2px;
+  padding: 6px;
+  border: 1px solid #cbd7e5;
+  border-radius: 8px;
+  background: #ffffff;
+  box-shadow: 0 14px 38px rgba(15, 23, 42, 0.16);
+}
+
+.shipment-context-menu button {
+  appearance: none;
+  display: flex;
+  align-items: center;
+  width: 100%;
+  min-height: 30px;
+  padding: 0 9px;
+  border: 0;
+  border-radius: 6px;
+  background: transparent;
+  color: #223349;
+  cursor: pointer;
+  font: inherit;
+  font-size: 12px;
+  font-weight: 700;
+  text-align: left;
+}
+
+.shipment-context-menu button:hover:not(:disabled) {
+  background: #eef4fb;
+  color: #183756;
+}
+
+.shipment-context-menu button.danger {
+  color: #b42318;
+}
+
+.shipment-context-menu button:disabled {
+  cursor: not-allowed;
+  color: #9aaabd;
+}
+
 .shipment-table {
   --el-table-border-color: transparent;
   --el-table-row-hover-bg-color: #f8f9fb;
@@ -771,6 +1082,10 @@ onMounted(async () => {
   transition: background 0.1s ease;
 }
 
+.shipment-table :deep(.el-table__body tr.row-selected > td) {
+  background: #eaf1f8 !important;
+}
+
 .cell-nowrap {
   white-space: nowrap;
 }
@@ -1035,6 +1350,15 @@ onMounted(async () => {
     gap: 12px;
     align-items: stretch;
   }
+  .shipment-workbench.is-desktop {
+    grid-template-columns: minmax(0, 1fr);
+  }
+  .shipment-workbench.is-desktop .shipment-table-pane {
+    border-right: 0;
+  }
+  .shipment-preview-pane {
+    display: none;
+  }
 }
 
 @media (max-width: 640px) {
@@ -1042,6 +1366,44 @@ onMounted(async () => {
     width: 100%;
   }
 }
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .table-card) {
+  background: #172033;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .shipment-preview-pane) {
+  border-color: #26364a;
+  background: #111827;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .preview-title),
+:global([data-ctms-theme="dark"] .shipment-page--desktop .preview-list dd) {
+  color: #f8fafc;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .preview-kicker),
+:global([data-ctms-theme="dark"] .shipment-page--desktop .preview-list dt),
+:global([data-ctms-theme="dark"] .shipment-page--desktop .preview-empty) {
+  color: #94a3b8;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .shipment-context-menu) {
+  border-color: #334155;
+  background: #172033;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .shipment-context-menu button) {
+  color: #dbe5f1;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .shipment-context-menu button:hover:not(:disabled)) {
+  background: #243247;
+  color: #bfdbfe;
+}
+
+:global([data-ctms-theme="dark"] .shipment-page--desktop .shipment-table .el-table__body tr.row-selected > td) {
+  background: #243247 !important;
+}
 </style>
 
 <style>
diff --git a/frontend/src/views/ia/RiskIssueMonitoringVisits.vue b/frontend/src/views/ia/RiskIssueMonitoringVisits.vue
index a482ef15..fa8617db 100644
--- a/frontend/src/views/ia/RiskIssueMonitoringVisits.vue
+++ b/frontend/src/views/ia/RiskIssueMonitoringVisits.vue
@@ -978,7 +978,14 @@ const handleExportExcel = async () => {
     const contentType = response.headers?.["content-type"] || "application/octet-stream";
     const filename = getFilename(response.headers?.["content-disposition"]) || "监查访视问题.xlsx";
     const blob = new Blob([response.data], { type: contentType });
-    await saveFileWithFeedback({ suggestedName: filename, mimeType: contentType, data: blob });
+    await saveFileWithFeedback(
+      { suggestedName: filename, mimeType: contentType, data: blob },
+      {
+        kind: "export",
+        title: "导出文件",
+        completedDetail: "导出文件已保存",
+      },
+    );
     ElMessage.success("导出成功");
   } catch (e: any) {
     ElMessage.error(e?.response?.data?.detail || TEXT.common.messages.downloadFailed);