diff --git a/uniapp/youjiala/src/components/family-tree-home/family-tree-home.vue b/uniapp/youjiala/src/components/family-tree-home/family-tree-home.vue
index bd80f88..d35c652 100644
--- a/uniapp/youjiala/src/components/family-tree-home/family-tree-home.vue
+++ b/uniapp/youjiala/src/components/family-tree-home/family-tree-home.vue
@@ -11,9 +11,12 @@
 import type { LoadedTreeNode } from "@/components/family-tree-chart/types";
 import type { FamilyPersonDisplayData } from "@/data/auto/familyPersonDisplayData";
 import type { AdminRow } from "@/admin/admin-types";
+import type { ExchangeScope } from "@/composables/useFamilyTreeExchange";
+import type { FamilyTreeExchangeFileInfo } from "@/data/auto/familyTreeExchangeFileInfo";
 import { useLocale } from "uview-pro";
 import { computed, onMounted, ref } from "vue";
 import { useThemeGradient, useThemeTokens } from "@/composables";
+import { formatFileSize, formatFileTime, useFamilyTreeExchange } from "@/composables/useFamilyTreeExchange";
 import { usePersonPickConfig } from "@/composables/usePickerConfigs";
 import { usePolicyOptions } from "@/composables/usePolicyOptions";
 import { FamilyPersonEntity } from "@/data/auto/familyPersonEntity";
@@ -1035,6 +1038,298 @@ async function rejectPermission(record: { PersonId: string; UserName: string }):
   load();
 }
 
+// ===== 交换文件（.fm 导入导出，加密信封见 utils/familyTreeExchange）=====
+const { exchangeBusy, exportTree, listFiles, decryptPayload, readAndDecrypt, importTree, importSubTree, listBackups, restoreBackup } = useFamilyTreeExchange();
+const exportVisible = ref(false);
+const importVisible = ref(false);
+const exScope = ref<ExchangeScope>("ALL");
+const exPassword = ref("");
+const exSaveLocal = ref(true);
+const exUploadServer = ref(true);
+const importFiles = ref<FamilyTreeExchangeFileInfo[]>([]);
+const importFilesLoading = ref(false);
+const pickedFileName = ref("");
+const imPassword = ref("");
+// 二期：导入模式（ALL=整谱替换 / SUB=支系替换，与所选文件范围必须同构）
+const imScope = ref<ExchangeScope>("ALL");
+/** 小系导出闸：管理员任意锚点（D8），成员只限可编支系内的当前族员 */
+const canSubExport = computed(() => data.value.IsManager || (data.value.IsCanAmend && !!currentPerson.value?.PersonId));
+const canExport = computed(() => data.value.IsManager || data.value.IsMember);
+
+function openExchangeExport(): void {
+  exScope.value = "ALL";
+  exPassword.value = "";
+  exSaveLocal.value = true;
+  exUploadServer.value = true;
+  exportVisible.value = true;
+}
+
+function onExSaveChange(value: boolean): void {
+  exSaveLocal.value = value;
+}
+
+function onExUploadChange(value: boolean): void {
+  exUploadServer.value = value;
+}
+
+/** 导出全链：拉明文→加密→落盘/上传（composable 内部完成），成功报文件名 */
+async function runExchangeExport(): Promise<void> {
+  if (exPassword.value.length < 4) {
+    toast(t("FamilyTreePage.exchangePwdShort"));
+    return;
+  }
+  if (!exSaveLocal.value && !exUploadServer.value) {
+    toast(t("FamilyTreePage.exchangeTargetTip"));
+    return;
+  }
+  if (exScope.value === "SUB" && !canSubExport.value) {
+    toast(t("FamilyTreePage.exchangeSubDenied"));
+    return;
+  }
+  try {
+    const fileName = await exportTree({
+      treeId: treeId.value,
+      scope: exScope.value,
+      anchorPersonId: currentPerson.value?.PersonId,
+      password: exPassword.value,
+      saveLocal: exSaveLocal.value,
+      uploadServer: exUploadServer.value,
+    });
+    exportVisible.value = false;
+    toast(t("FamilyTreePage.exchangeExportDone").replace("{name}", fileName));
+  }
+  catch (error: any) {
+    toast(error?.message === "exchange-export-empty"
+      ? t("FamilyTreePage.exchangeExportEmpty")
+      : error?.message || t("FamilyTreePage.exchangeFailed"));
+  }
+}
+
+async function openExchangeImport(): Promise<void> {
+  // 非管理员看不到整谱替换 chip（D4 管理员限），默认落在小系替换
+  imScope.value = data.value.IsManager ? "ALL" : "SUB";
+  pickedFileName.value = "";
+  imPassword.value = "";
+  bkMode.value = false;
+  pickedBackup.value = "";
+  clearLocalFile();
+  importVisible.value = true;
+  await loadImportFiles();
+}
+
+/** 模式切换：换范围重拉列表，已选文件清空防串模式 */
+async function onImScopeChange(scope: ExchangeScope): Promise<void> {
+  if (imScope.value === scope) {
+    return;
+  }
+  imScope.value = scope;
+  pickedFileName.value = "";
+  await loadImportFiles();
+}
+
+/** 交换目录里本谱对应模式的文件（后端已降序，composable 再按 Scope 过滤） */
+async function loadImportFiles(): Promise<void> {
+  importFilesLoading.value = true;
+  try {
+    importFiles.value = await listFiles(treeId.value, imScope.value);
+  }
+  catch {
+    importFiles.value = [];
+  }
+  finally {
+    importFilesLoading.value = false;
+  }
+}
+
+// 三期备份还原（R4）：导入弹窗第三个 chips；BK 明文列表不需密码，选中即待还原回滚点
+const bkMode = ref(false);
+const backupFiles = ref<FamilyTreeExchangeFileInfo[]>([]);
+const backupLoading = ref(false);
+const pickedBackup = ref("");
+
+/** 回文件模式（ALL/SUB）：退 bkMode，选中文件保留（同模式切回不丢进度） */
+function pickImScope(scope: ExchangeScope): void {
+  bkMode.value = false;
+  void onImScopeChange(scope);
+}
+
+async function enterBkMode(): Promise<void> {
+  if (bkMode.value) {
+    return;
+  }
+  bkMode.value = true;
+  pickedFileName.value = "";
+  clearLocalFile();
+  if (!backupFiles.value.length) {
+    await fetchBackups();
+  }
+}
+
+async function fetchBackups(): Promise<void> {
+  backupLoading.value = true;
+  try {
+    backupFiles.value = await listBackups(treeId.value);
+  }
+  catch {
+    backupFiles.value = [];
+  }
+  finally {
+    backupLoading.value = false;
+  }
+}
+
+/** 还原执行：二次确认（整谱回滚+重编号+清绑定说清）→ 后端回放 BK（还原前自动再备份现谱） */
+async function runRestoreBackup(): Promise<void> {
+  if (!pickedBackup.value) {
+    toast(t("FamilyTreePage.exchangePickBackupTip"));
+    return;
+  }
+  const bk = backupFiles.value.find(x => x.FileName === pickedBackup.value);
+  const confirmResult = await new Promise<boolean>((resolve) => {
+    uni.showModal({
+      title: t("FamilyTreePage.exchangeRestoreConfirmTitle"),
+      content: t("FamilyTreePage.exchangeRestoreConfirm").replace("{time}", formatFileTime(bk?.LastModified ?? "")),
+      success: res => resolve(!!res.confirm),
+      fail: () => resolve(false),
+    });
+  });
+  if (!confirmResult) {
+    return;
+  }
+  try {
+    const count = await restoreBackup(treeId.value, pickedBackup.value);
+    importVisible.value = false;
+    toast(t("FamilyTreePage.exchangeRestoreDone").replace("{count}", String(count)));
+    data.value = new FamilyTreeData(); // 还原后全员重编号，清旧上下文再重拉
+    await load();
+  }
+  catch (error: any) {
+    toast(error?.message || t("FamilyTreePage.exchangeFailed"));
+  }
+}
+
+// 本地上传通道：A 谱导出的 .fm 在任意谱界面直接选中导入（跨谱嫁接，不经服务器交换目录）
+const localFileText = ref("");
+const localFileName = ref("");
+
+function clearLocalFile(): void {
+  localFileText.value = "";
+  localFileName.value = "";
+}
+
+/** uni.chooseFile 选本地 .fm 并读文本（H5 原生 File.text / App FileSystemManager），与服务器列表通道互斥 */
+async function pickLocalFile(): Promise<void> {
+  try {
+    const picked: any = await new Promise((resolve, reject) => {
+      uni.chooseFile({ count: 1, extension: [".fm"], success: resolve, fail: reject });
+    });
+    const file = picked.tempFiles?.[0];
+    const name = String(file?.name || picked.tempFilePaths?.[0]?.split("/").pop() || "exchange.fm");
+    let text = "";
+    // #ifdef H5
+    text = await file.text();
+    // #endif
+    // #ifndef H5
+    const res: any = await new Promise((resolve, reject) => {
+      uni.getFileSystemManager().readFile({
+        filePath: picked.tempFilePaths[0],
+        encoding: "utf8",
+        success: resolve,
+        fail: reject,
+      });
+    });
+    text = String(res.data ?? "");
+    // #endif
+    if (!text.trim()) {
+      toast(t("FamilyTreePage.exchangeLocalBad"));
+      return;
+    }
+    localFileText.value = text;
+    localFileName.value = name;
+    pickedFileName.value = "";
+  }
+  catch (e: any) {
+    // 用户取消不算错（errMsg 含 cancel），其余给统一读失败提示
+    if (!String(e?.errMsg ?? e ?? "").includes("cancel")) {
+      toast(t("FamilyTreePage.exchangeLocalBad"));
+      console.warn("[familyTreeExchange] choose local file failed:", e);
+    }
+  }
+}
+
+/** 导入三步合一：验文件（服务器/本地两路）+验密码 → 破坏性行为二次确认 → 按模式执行（整谱替换/支系替换） */
+async function runExchangeImport(): Promise<void> {
+  if (!pickedFileName.value && !localFileName.value) {
+    toast(t("FamilyTreePage.exchangePickFileTip"));
+    return;
+  }
+  if (imPassword.value.length < 4) {
+    toast(t("FamilyTreePage.exchangePwdShort"));
+    return;
+  }
+  let payload;
+  let preview;
+  let scope;
+  try {
+    if (localFileName.value) {
+      // 本地文件：模式自动识别（payload.Scope 说了算，支持跨谱嫁接），chips 跟随文件
+      ({ payload, preview, scope } = await decryptPayload(localFileText.value, imPassword.value, null));
+      imScope.value = scope;
+    }
+    else {
+      ({ payload, preview } = await readAndDecrypt(pickedFileName.value, imPassword.value, imScope.value));
+      scope = imScope.value;
+    }
+  }
+  catch (error: any) {
+    toast(error?.message === "exchange-scope-mismatch"
+      ? t("FamilyTreePage.exchangeScopeMismatch")
+      : error?.message === "exchange-legacy-sub"
+        ? t("FamilyTreePage.exchangeLegacySub")
+        : t("FamilyTreePage.exchangeDecryptFailed"));
+    return;
+  }
+  // 支系替换的锚点口径（P2）：与当前族员对比，姓+谱名同一人才同意；本地 SUB 文件解密后才知道要锚点
+  if (scope === "SUB" && !currentPerson.value?.PersonId) {
+    toast(t("FamilyTreePage.exchangeSubAnchorMissing"));
+    return;
+  }
+  // 二次确认：ALL 按同谱/跨谱区分——同谱（含本谱服务器文件）编号与绑定原样保留，跨谱嫁接才清绑定重编号；SUB 说清只动哪根枝（备份都在后端自动落盘可回滚）
+  const sameTree = String(payload.FamilyTree?.TreeId ?? "").toUpperCase() === String(treeId.value).toUpperCase();
+  const confirmResult = await new Promise<boolean>((resolve) => {
+    uni.showModal({
+      title: t(scope === "SUB" ? "FamilyTreePage.exchangeImportConfirmSubTitle" : "FamilyTreePage.exchangeImportConfirmTitle"),
+      content: scope === "SUB"
+        ? t("FamilyTreePage.exchangeImportConfirmSub")
+          .replace("{tree}", preview.TreeName)
+          .replace("{count}", String(preview.PersonCount))
+          .replace("{anchor}", currentPersonName.value || "-")
+        : t(sameTree ? "FamilyTreePage.exchangeImportConfirmSame" : "FamilyTreePage.exchangeImportConfirm")
+          .replace("{tree}", preview.TreeName)
+          .replace("{count}", String(preview.PersonCount))
+          .replace("{time}", preview.ExportedAt),
+      success: res => resolve(!!res.confirm),
+      fail: () => resolve(false),
+    });
+  });
+  if (!confirmResult) {
+    return;
+  }
+  try {
+    const count = scope === "SUB"
+      ? await importSubTree(treeId.value, currentPerson.value!.PersonId, payload)
+      : await importTree(treeId.value, payload);
+    importVisible.value = false;
+    toast(t("FamilyTreePage.exchangeImportDone").replace("{count}", String(count)));
+    // 导入/还原后全员重编号，旧 currentPerson 已失效：先清上下文再重拉，避免带旧 Id 查询
+    data.value = new FamilyTreeData();
+    await load();
+  }
+  catch (error: any) {
+    toast(error?.message || t("FamilyTreePage.exchangeFailed"));
+  }
+}
+
 // ===== 只读文案小工具 =====
 function genderText(gender?: string): string {
   return getPolicyText("GenderPolicy", gender ?? "");
@@ -1160,18 +1455,24 @@ defineExpose({
                       <u-icon name="file-text" size="22" color="#9a8f82" />
                     </view>
                     <view class="ft-hero__badges">
-                      <text v-if="tree.PublicIndc === 'Y'" class="ft-badge ft-badge--pub">{{ t("FamilyTreePage.chipPublic") }}</text>
+                      <text v-if="tree.PublicIndc === 'Y'" class="ft-badge ft-badge--pub">{{
+                        t("FamilyTreePage.chipPublic") }}</text>
                       <text v-else class="ft-badge ft-badge--priv">{{ t("FamilyTreePage.chipPrivate") }}</text>
                       <!-- 公开开关属谱级设置：仅管理员可见可操作，成员/普通用户只读徽章 -->
-                      <u-switch v-if="data.IsManager" :model-value="tree.PublicIndc === 'Y'" size="40" :active-color="primary" @change="onPublicToggle" />
-                      <text v-if="data.IsManager" class="ft-badge ft-badge--admin">{{ t("FamilyTreePage.managerTag") }}</text>
+                      <u-switch v-if="data.IsManager" :model-value="tree.PublicIndc === 'Y'" size="40"
+                        :active-color="primary" @change="onPublicToggle" />
+                      <text v-if="data.IsManager" class="ft-badge ft-badge--admin">{{ t("FamilyTreePage.managerTag")
+                      }}</text>
                     </view>
                   </view>
                 </view>
                 <view class="ft-hero__stats">
-                  <view class="ft-stat"><text class="ft-stat__n">{{ memberCount }}</text><text class="ft-stat__l">{{ t("FamilyTreePage.statMembers") }}</text></view>
-                  <view class="ft-stat"><text class="ft-stat__n">{{ managerPermissions.length }}</text><text class="ft-stat__l">{{ t("FamilyTreePage.statManagers") }}</text></view>
-                  <view class="ft-stat"><text class="ft-stat__n">{{ pendingPermissions.length }}</text><text class="ft-stat__l">{{ t("FamilyTreePage.statPending") }}</text></view>
+                  <view class="ft-stat"><text class="ft-stat__n">{{ memberCount }}</text><text class="ft-stat__l">{{
+                    t("FamilyTreePage.statMembers") }}</text></view>
+                  <view class="ft-stat"><text class="ft-stat__n">{{ managerPermissions.length }}</text><text
+                      class="ft-stat__l">{{ t("FamilyTreePage.statManagers") }}</text></view>
+                  <view class="ft-stat"><text class="ft-stat__n">{{ pendingPermissions.length }}</text><text
+                      class="ft-stat__l">{{ t("FamilyTreePage.statPending") }}</text></view>
                 </view>
               </view>
 
@@ -1181,12 +1482,14 @@ defineExpose({
                   <text>{{ t("FamilyTreePage.tabOverview") }}</text>
                 </view>
                 <!-- 成员 tab：管理员与已绑定成员可见；普通用户仅概览（查看公开信息 + 两谱图） -->
-                <view v-if="data.IsManager || data.IsMember" class="ft-tab" :class="{ 'ft-tab--on': activeTab === 'members' }" @tap="switchTab('members')">
+                <view v-if="data.IsManager || data.IsMember" class="ft-tab"
+                  :class="{ 'ft-tab--on': activeTab === 'members' }" @tap="switchTab('members')">
                   <text>{{ t("FamilyTreePage.tabMembers") }}</text>
                   <text class="ft-tab__cnt">{{ memberCount }}</text>
                 </view>
                 <!-- 权限 tab：审批/管理名单属全谱人事权，仅管理员可见 -->
-                <view v-if="data.IsManager" class="ft-tab" :class="{ 'ft-tab--on': activeTab === 'perms' }" @tap="switchTab('perms')">
+                <view v-if="data.IsManager" class="ft-tab" :class="{ 'ft-tab--on': activeTab === 'perms' }"
+                  @tap="switchTab('perms')">
                   <text>{{ t("FamilyTreePage.tabPerms") }}</text>
                   <view v-if="pendingPermissions.length" class="ft-tab__dot" />
                 </view>
@@ -1206,19 +1509,24 @@ defineExpose({
                 <view v-if="loaded" class="ft-card">
                   <view class="ft-card__head">
                     <text class="ft-card__title">{{ t("FamilyTreePage.ancestorInfo") }}</text>
-                    <text v-if="ancestorPerson && data.IsCanAmend" class="ft-card__link" @tap="openEditPerson(ancestorPerson.PersonId)">{{ t("FamilyTreePage.edit") }}</text>
+                    <text v-if="ancestorPerson && data.IsCanAmend" class="ft-card__link"
+                      @tap="openEditPerson(ancestorPerson.PersonId)">{{ t("FamilyTreePage.edit") }}</text>
                     <!-- 没始祖时补设属谱级动作：挂始祖只跟管理员，成员支系内可编辑已有始祖档案但不可改挂 -->
-                    <text v-else-if="!ancestorPerson && data.IsManager" class="ft-card__link" @tap="openQuickCreate('ancestor')">{{ t("FamilyTreePage.addAncestor") }}</text>
+                    <text v-else-if="!ancestorPerson && data.IsManager" class="ft-card__link"
+                      @tap="openQuickCreate('ancestor')">{{ t("FamilyTreePage.addAncestor") }}</text>
                   </view>
                   <template v-if="ancestorPerson">
                     <view class="person-hero">
-                      <view class="person-hero__avatar" :style="avatarFallbackStyle(!!ancestorPerson.AvatarUrl, ancestorPerson.Gender)">
-                        <image v-if="ancestorPerson.AvatarUrl" class="person-hero__img" :src="ancestorPerson.AvatarUrl" mode="aspectFill" />
+                      <view class="person-hero__avatar"
+                        :style="avatarFallbackStyle(!!ancestorPerson.AvatarUrl, ancestorPerson.Gender)">
+                        <image v-if="ancestorPerson.AvatarUrl" class="person-hero__img" :src="ancestorPerson.AvatarUrl"
+                          mode="aspectFill" />
                         <u-icon v-else name="account" size="56" :color="genderTheme(ancestorPerson.Gender)" />
                       </view>
                       <view class="person-hero__main">
                         <view class="person-hero__line">
-                          <text class="person-hero__name">{{ `${ancestorPerson.Surname ?? ""}${ancestorPerson.GenealogyName ?? ""}` || "-" }}</text>
+                          <text class="person-hero__name">{{ `${ancestorPerson.Surname ??
+                            ""}${ancestorPerson.GenealogyName ?? ""}` || "-" }}</text>
                           <text class="person-hero__gender">{{ genderText(ancestorPerson.Gender) || "-" }}</text>
                         </view>
                         <view class="person-hero__chips">
@@ -1227,20 +1535,31 @@ defineExpose({
                       </view>
                     </view>
                     <view class="ft-rows">
-                      <view class="ft-row"><text class="ft-row__k">{{ t("FamilyPersonPage.genealogyName") }}</text><text class="ft-row__v">{{ ancestorPerson.GenealogyName || "-" }}</text></view>
-                      <view class="ft-row"><text class="ft-row__k">{{ t("FamilyPersonPage.commonName") }}</text><text class="ft-row__v">{{ ancestorPerson.CommonName || "-" }}</text></view>
+                      <view class="ft-row"><text class="ft-row__k">{{ t("FamilyPersonPage.genealogyName") }}</text><text
+                          class="ft-row__v">{{ ancestorPerson.GenealogyName || "-" }}</text></view>
+                      <view class="ft-row"><text class="ft-row__k">{{ t("FamilyPersonPage.commonName") }}</text><text
+                          class="ft-row__v">{{ ancestorPerson.CommonName || "-" }}</text></view>
                     </view>
                   </template>
                   <view v-else class="ft-empty"><text>{{ t("FamilyTreePage.noAncestor") }}</text></view>
                 </view>
 
                 <view class="ft-card">
-                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.quickActions") }}</text></view>
+                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.quickActions") }}</text>
+                  </view>
                   <view class="ft-quick">
                     <!-- 编辑资料改的是族谱本体（谱级）：仅管理员；普通用户/成员不可见 -->
-                    <view v-if="data.IsManager" class="ft-qa" @tap="openTreeEditor"><u-icon name="edit-pen" size="30" :color="primary" /><text>{{ t("FamilyTreePage.editProfile") }}</text></view>
+                    <view v-if="data.IsManager" class="ft-qa" @tap="openTreeEditor"><u-icon name="edit-pen" size="30"
+                        :color="primary" /><text>{{ t("FamilyTreePage.editProfile") }}</text></view>
                     <!-- 申请管理三档都可用（已是管理员时点击只提示不重复发） -->
-                    <view class="ft-qa" @tap="requestManager"><u-icon name="server-man" size="30" :color="primary" /><text>{{ t("FamilyTreePage.applyManage") }}</text></view>
+                    <view class="ft-qa" @tap="requestManager"><u-icon name="server-man" size="30"
+                        :color="primary" /><text>{{
+                          t("FamilyTreePage.applyManage") }}</text></view>
+                    <!-- 交换文件：导出需成员及以上（D8 管理员不限）；导入入口同样成员可见（小系替换 P6 / 备份还原 R1 均已开成员闸），仅整谱替换留管理员 -->
+                    <view v-if="canExport" class="ft-qa" @tap="openExchangeExport"><u-icon name="download" size="30"
+                        :color="primary" /><text>{{ t("FamilyTreePage.exchangeExportEntry") }}</text></view>
+                    <view v-if="canExport" class="ft-qa" @tap="openExchangeImport"><u-icon name="upload" size="30"
+                        :color="primary" /><text>{{ t("FamilyTreePage.exchangeImportEntry") }}</text></view>
                   </view>
                 </view>
               </view>
@@ -1249,10 +1568,13 @@ defineExpose({
               <view v-show="activeTab === 'members'" class="ft-pane">
                 <!-- 当前族员：从概览移入，夫妻/子女列表都是相对此人 -->
                 <view v-if="loaded && currentPerson" class="ft-card">
-                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.currentPerson") }}</text></view>
+                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.currentPerson")
+                  }}</text></view>
                   <view class="person-hero">
-                    <view class="person-hero__avatar" :style="avatarFallbackStyle(!!currentPerson?.AvatarUrl, currentPerson?.Gender)">
-                      <image v-if="currentPerson?.AvatarUrl" class="person-hero__img" :src="currentPerson.AvatarUrl" mode="aspectFill" />
+                    <view class="person-hero__avatar"
+                      :style="avatarFallbackStyle(!!currentPerson?.AvatarUrl, currentPerson?.Gender)">
+                      <image v-if="currentPerson?.AvatarUrl" class="person-hero__img" :src="currentPerson.AvatarUrl"
+                        mode="aspectFill" />
                       <u-icon v-else name="account" size="56" :color="genderTheme(currentPerson?.Gender)" />
                     </view>
                     <view class="person-hero__main">
@@ -1261,108 +1583,197 @@ defineExpose({
                         <text class="person-hero__gender">{{ genderText(currentPerson?.Gender) || "-" }}</text>
                       </view>
                       <view class="person-hero__chips">
-                        <text v-if="currentPerson?.PersonId" class="person-hero__chip">{{ personChipText(currentPerson) }}</text>
+                        <text v-if="currentPerson?.PersonId" class="person-hero__chip">{{ personChipText(currentPerson)
+                        }}</text>
                       </view>
                     </view>
                   </view>
                   <view class="op-btns">
-                    <view v-if="currentPerson?.PersonId && data.IsCanAmend" class="op-btn" @tap="openEditPerson(currentPerson.PersonId)"><u-icon name="edit-pen" size="26" :color="primary" /><text class="op-btn-text">{{ t("FamilyPersonPage.editBut") }}</text></view>
-                    <view class="op-btn" @tap="pickCurrentPerson"><u-icon name="search" size="26" :color="primary" /><text class="op-btn-text">{{ t("FamilyTreePage.personSearch") }}</text></view>
-                    <view class="op-btn" @tap="subChartVisible = true"><view class="ft-glyph ft-glyph--sub" /><text class="op-btn-text">{{ t("FamilyTreePage.pedigreeChart") }}</text></view>
+                    <view v-if="currentPerson?.PersonId && data.IsCanAmend" class="op-btn"
+                      @tap="openEditPerson(currentPerson.PersonId)"><u-icon name="edit-pen" size="26"
+                        :color="primary" /><text class="op-btn-text">{{ t("FamilyPersonPage.editBut") }}</text></view>
+                    <view class="op-btn" @tap="pickCurrentPerson"><u-icon name="search" size="26"
+                        :color="primary" /><text class="op-btn-text">{{ t("FamilyTreePage.personSearch") }}</text>
+                    </view>
+                    <view class="op-btn" @tap="subChartVisible = true">
+                      <view class="ft-glyph ft-glyph--sub" /><text class="op-btn-text">{{
+                        t("FamilyTreePage.pedigreeChart") }}</text>
+                    </view>
                     <!-- 绑定/解绑开关：当前族员已绑到自己权限行时显「解除绑定」，否则显「绑定账号」（需已过审且同名；申请入口仍在概览快捷区/底部条） -->
-                    <view v-if="!data.IsManager && isSelfBound" class="op-btn" @tap="unbindCurrentPerson"><u-icon name="close" size="26" :color="primary" /><text class="op-btn-text">{{ t("FamilyTreePage.unbindAccount") }}</text></view>
-                    <view v-else-if="!data.IsManager" class="op-btn" @tap="bindCurrentPerson"><u-icon name="scan" size="26" :color="primary" /><text class="op-btn-text">{{ t("FamilyTreePage.bindAccount") }}</text></view>
+                    <view v-if="!data.IsManager && isSelfBound" class="op-btn" @tap="unbindCurrentPerson"><u-icon
+                        name="close" size="26" :color="primary" /><text class="op-btn-text">{{
+                          t("FamilyTreePage.unbindAccount") }}</text></view>
+                    <view v-else-if="!data.IsManager" class="op-btn" @tap="bindCurrentPerson"><u-icon name="scan"
+                        size="26" :color="primary" /><text class="op-btn-text">{{ t("FamilyTreePage.bindAccount")
+                        }}</text></view>
                   </view>
                 </view>
-                <view class="ft-search"><search-input v-model="memberKeyword" :placeholder="t('FamilyTreePage.searchMember')" /></view>
+                <view class="ft-search"><search-input v-model="memberKeyword"
+                    :placeholder="t('FamilyTreePage.searchMember')" />
+                </view>
                 <view class="ft-chips">
-                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'all' }" @tap="memberFilter = 'all'">{{ t("FamilyTreePage.filterAll") }}</text>
-                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'male' }" @tap="memberFilter = 'male'">{{ t("FamilyTreePage.filterMale") }}</text>
-                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'female' }" @tap="memberFilter = 'female'">{{ t("FamilyTreePage.filterFemale") }}</text>
+                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'all' }"
+                    @tap="memberFilter = 'all'">{{
+                      t("FamilyTreePage.filterAll") }}</text>
+                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'male' }"
+                    @tap="memberFilter = 'male'">{{
+                      t("FamilyTreePage.filterMale") }}</text>
+                  <text class="ft-chip" :class="{ 'ft-chip--on': memberFilter === 'female' }"
+                    @tap="memberFilter = 'female'">{{
+                      t("FamilyTreePage.filterFemale") }}</text>
                 </view>
 
                 <view class="ft-card">
                   <!-- 新增入口与行尾操作同一把闸：当前锚点不可编（未绑定/出支系）时隐藏 -->
-                  <view class="ft-card__head"><view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.spouseTitle") }}</text><text class="ft-card__count">{{ spouseMaps.length }}</text></view><view v-if="data.IsCanAmend" class="ft-card__add" @tap="openQuickCreate('spouse')"><u-icon name="plus" size="26" :color="primary" /><text>{{ t("FamilyTreePage.addSpouse") }}</text></view></view>
-                  <view v-if="!visibleSpouses.length" class="ft-empty"><text>{{ t("FamilyTreePage.spouseEmpty") }}</text></view>
+                  <view class="ft-card__head">
+                    <view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.spouseTitle")
+                    }}</text><text class="ft-card__count">{{ spouseMaps.length }}</text></view>
+                    <view v-if="data.IsCanAmend" class="ft-card__add" @tap="openQuickCreate('spouse')"><u-icon
+                        name="plus" size="26" :color="primary" /><text>{{ t("FamilyTreePage.addSpouse") }}</text></view>
+                  </view>
+                  <view v-if="!visibleSpouses.length" class="ft-empty"><text>{{ t("FamilyTreePage.spouseEmpty")
+                  }}</text></view>
                   <view v-for="record in visibleSpouses" :key="record.SpouseId" class="ft-mrow">
-                    <view class="ft-av" :style="avatarFallbackStyle(!!personAvatar(record.SpouseId), personGender(record.SpouseId, record.Gender))">
-                      <image v-if="personAvatar(record.SpouseId)" class="ft-av__img" :src="personAvatar(record.SpouseId)" mode="aspectFill" />
-                      <u-icon v-else name="account" size="40" :color="genderTheme(personGender(record.SpouseId, record.Gender))" />
+                    <view class="ft-av"
+                      :style="avatarFallbackStyle(!!personAvatar(record.SpouseId), personGender(record.SpouseId, record.Gender))">
+                      <image v-if="personAvatar(record.SpouseId)" class="ft-av__img"
+                        :src="personAvatar(record.SpouseId)" mode="aspectFill" />
+                      <u-icon v-else name="account" size="40"
+                        :color="genderTheme(personGender(record.SpouseId, record.Gender))" />
                     </view>
                     <view class="ft-mrow__main">
-                      <view class="ft-mrow__line"><text class="ft-mrow__name">{{ `${record.SpouseSurname ?? ""}${record.SpouseGenealogyName ?? ""}` }}</text><text class="ft-mrow__sex">{{ genderText(personGender(record.SpouseId, record.Gender)) }}</text></view>
+                      <view class="ft-mrow__line"><text class="ft-mrow__name">{{ `${record.SpouseSurname ??
+                        ""}${record.SpouseGenealogyName ?? ""}` }}</text><text class="ft-mrow__sex">{{
+                            genderText(personGender(record.SpouseId, record.Gender)) }}</text></view>
                       <text class="ft-mrow__code">{{ personCommonName(record.SpouseId) || record.SpouseId }}</text>
                     </view>
                     <!-- 行尾直达动作（旧编辑态式）：↑↓ 调序属锚点关系列表维护留锚点级；编辑/解除按目标人逐个判，旁支（如兄弟）不显示 -->
                     <view v-if="data.IsCanAmend" class="ft-mrow__ops" @tap.stop>
-                      <view class="ft-mrow__op" @tap.stop="onRelationMove('spouse', record, -1)"><u-icon name="arrow-up" size="28" :color="primary" /></view>
-                      <view class="ft-mrow__op" @tap.stop="onRelationMove('spouse', record, 1)"><u-icon name="arrow-down" size="28" :color="primary" /></view>
-                      <view v-if="canAmendPerson(record.SpouseId)" class="ft-mrow__op" @tap.stop="openEditPerson(record.SpouseId)"><u-icon name="edit-pen" size="28" :color="primary" /></view>
-                      <view v-if="canAmendPerson(record.SpouseId)" class="ft-mrow__op" @tap.stop="onRelationRemove('spouse', record)"><u-icon name="trash" size="28" color="#f0413e" /></view>
+                      <view class="ft-mrow__op" @tap.stop="onRelationMove('spouse', record, -1)"><u-icon name="arrow-up"
+                          size="28" :color="primary" /></view>
+                      <view class="ft-mrow__op" @tap.stop="onRelationMove('spouse', record, 1)"><u-icon
+                          name="arrow-down" size="28" :color="primary" /></view>
+                      <view v-if="canAmendPerson(record.SpouseId)" class="ft-mrow__op"
+                        @tap.stop="openEditPerson(record.SpouseId)">
+                        <u-icon name="edit-pen" size="28" :color="primary" />
+                      </view>
+                      <view v-if="canAmendPerson(record.SpouseId)" class="ft-mrow__op"
+                        @tap.stop="onRelationRemove('spouse', record)">
+                        <u-icon name="trash" size="28" color="#f0413e" />
+                      </view>
                     </view>
                   </view>
                 </view>
 
                 <view class="ft-card">
-                  <view class="ft-card__head"><view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.childTitle") }}</text><text class="ft-card__count">{{ childMaps.length }}</text></view><view v-if="data.IsCanAmend" class="ft-card__add" @tap="openQuickCreate('child')"><u-icon name="plus" size="26" :color="primary" /><text>{{ t("FamilyTreePage.addChildBtn") }}</text></view></view>
-                  <view v-if="!visibleChildren.length" class="ft-empty"><text>{{ t("FamilyTreePage.childEmpty") }}</text></view>
+                  <view class="ft-card__head">
+                    <view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.childTitle")
+                    }}</text><text class="ft-card__count">{{ childMaps.length }}</text></view>
+                    <view v-if="data.IsCanAmend" class="ft-card__add" @tap="openQuickCreate('child')"><u-icon
+                        name="plus" size="26" :color="primary" /><text>{{ t("FamilyTreePage.addChildBtn") }}</text>
+                    </view>
+                  </view>
+                  <view v-if="!visibleChildren.length" class="ft-empty"><text>{{ t("FamilyTreePage.childEmpty")
+                  }}</text></view>
                   <view v-for="record in visibleChildren" :key="record.ChildrenId" class="ft-mrow">
-                    <view class="ft-av" :style="avatarFallbackStyle(!!personAvatar(record.ChildrenId), personGender(record.ChildrenId, record.Gender))">
-                      <image v-if="personAvatar(record.ChildrenId)" class="ft-av__img" :src="personAvatar(record.ChildrenId)" mode="aspectFill" />
-                      <u-icon v-else name="account" size="40" :color="genderTheme(personGender(record.ChildrenId, record.Gender))" />
+                    <view class="ft-av"
+                      :style="avatarFallbackStyle(!!personAvatar(record.ChildrenId), personGender(record.ChildrenId, record.Gender))">
+                      <image v-if="personAvatar(record.ChildrenId)" class="ft-av__img"
+                        :src="personAvatar(record.ChildrenId)" mode="aspectFill" />
+                      <u-icon v-else name="account" size="40"
+                        :color="genderTheme(personGender(record.ChildrenId, record.Gender))" />
                     </view>
                     <view class="ft-mrow__main">
-                      <view class="ft-mrow__line"><text class="ft-mrow__name">{{ `${record.ChildrenSurname ?? ""}${record.ChildrenGenealogyName ?? ""}` }}</text><text class="ft-mrow__sex">{{ genderText(personGender(record.ChildrenId, record.Gender)) }}</text></view>
+                      <view class="ft-mrow__line"><text class="ft-mrow__name">{{ `${record.ChildrenSurname ??
+                        ""}${record.ChildrenGenealogyName ?? ""}` }}</text><text class="ft-mrow__sex">{{
+                            genderText(personGender(record.ChildrenId, record.Gender)) }}</text></view>
                       <text class="ft-mrow__code">{{ personCommonName(record.ChildrenId) || record.ChildrenId }}</text>
                     </view>
                     <view v-if="data.IsCanAmend" class="ft-mrow__ops" @tap.stop>
-                      <view class="ft-mrow__op" @tap.stop="onRelationMove('child', record, -1)"><u-icon name="arrow-up" size="28" :color="primary" /></view>
-                      <view class="ft-mrow__op" @tap.stop="onRelationMove('child', record, 1)"><u-icon name="arrow-down" size="28" :color="primary" /></view>
-                      <view v-if="canAmendPerson(record.ChildrenId)" class="ft-mrow__op" @tap.stop="openEditPerson(record.ChildrenId)"><u-icon name="edit-pen" size="28" :color="primary" /></view>
-                      <view v-if="canAmendPerson(record.ChildrenId)" class="ft-mrow__op" @tap.stop="onRelationRemove('child', record)"><u-icon name="trash" size="28" color="#f0413e" /></view>
+                      <view class="ft-mrow__op" @tap.stop="onRelationMove('child', record, -1)"><u-icon name="arrow-up"
+                          size="28" :color="primary" /></view>
+                      <view class="ft-mrow__op" @tap.stop="onRelationMove('child', record, 1)"><u-icon name="arrow-down"
+                          size="28" :color="primary" /></view>
+                      <view v-if="canAmendPerson(record.ChildrenId)" class="ft-mrow__op"
+                        @tap.stop="openEditPerson(record.ChildrenId)"><u-icon name="edit-pen" size="28"
+                          :color="primary" /></view>
+                      <view v-if="canAmendPerson(record.ChildrenId)" class="ft-mrow__op"
+                        @tap.stop="onRelationRemove('child', record)"><u-icon name="trash" size="28" color="#f0413e" />
+                      </view>
                     </view>
                   </view>
                 </view>
 
-                <view class="ft-ghost" @tap="fullChartVisible = true"><view class="ft-glyph ft-glyph--full" /><text>{{ t("FamilyTreePage.viewFullChart") }}</text></view>
+                <view class="ft-ghost" @tap="fullChartVisible = true">
+                  <view class="ft-glyph ft-glyph--full" /><text>{{ t("FamilyTreePage.viewFullChart") }}</text>
+                </view>
               </view>
 
               <!-- ===== 权限 ===== -->
               <view v-show="activeTab === 'perms'" class="ft-pane">
                 <view v-if="data.IsManager && pendingPermissions.length" class="ft-card">
-                  <view class="ft-card__head"><view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.permPending") }}</text><text class="ft-card__count">{{ pendingPermissions.length }}</text></view></view>
+                  <view class="ft-card__head">
+                    <view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.permPending")
+                    }}</text><text class="ft-card__count">{{ pendingPermissions.length }}</text></view>
+                  </view>
                   <view v-for="record in pendingPermissions" :key="record.UserName" class="ft-perm-row">
-                    <view class="ft-perm-row__main"><text class="ft-perm-row__name">{{ record.UserLocalName || record.UserName }}</text><text v-if="record.PersonLocalName" class="ft-perm-row__sub">{{ record.PersonLocalName }}</text></view>
+                    <view class="ft-perm-row__main"><text class="ft-perm-row__name">{{ record.UserLocalName ||
+                      record.UserName
+                    }}</text><text v-if="record.PersonLocalName" class="ft-perm-row__sub">{{ record.PersonLocalName
+                        }}</text>
+                    </view>
                     <view class="ft-perm-ops">
-                      <view class="ft-perm-op" @tap="approvePermission(record, 'N')"><text>{{ t("FamilyTreePage.approve") }}</text></view>
-                      <view class="ft-perm-op" @tap="approvePermission(record, 'Y')"><text>{{ t("FamilyTreePage.setManager") }}</text></view>
-                      <view class="ft-perm-op ft-perm-op--danger" @tap="rejectPermission(record)"><text class="ft-perm-op__t--danger">{{ t("FamilyTreePage.reject") }}</text></view>
+                      <view class="ft-perm-op" @tap="approvePermission(record, 'N')"><text>{{
+                        t("FamilyTreePage.approve") }}</text>
+                      </view>
+                      <view class="ft-perm-op" @tap="approvePermission(record, 'Y')"><text>{{
+                        t("FamilyTreePage.setManager") }}</text>
+                      </view>
+                      <view class="ft-perm-op ft-perm-op--danger" @tap="rejectPermission(record)"><text
+                          class="ft-perm-op__t--danger">{{ t("FamilyTreePage.reject") }}</text></view>
                     </view>
                   </view>
                 </view>
 
                 <view v-if="data.IsManager" class="ft-card">
-                  <view class="ft-card__head"><view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.permManager") }}</text><text class="ft-card__count">{{ managerPermissions.length }}</text></view></view>
-                  <view v-if="!managerPermissions.length" class="ft-empty"><text>{{ t("FamilyTreePage.permEmpty") }}</text></view>
+                  <view class="ft-card__head">
+                    <view class="ft-card__title-group"><text class="ft-card__title">{{ t("FamilyTreePage.permManager")
+                    }}</text><text class="ft-card__count">{{ managerPermissions.length }}</text></view>
+                  </view>
+                  <view v-if="!managerPermissions.length" class="ft-empty"><text>{{ t("FamilyTreePage.permEmpty")
+                  }}</text></view>
                   <view v-for="record in managerPermissions" :key="record.UserName" class="ft-perm-row">
-                    <view class="ft-perm-row__main"><text class="ft-perm-row__name">{{ record.UserLocalName || record.UserName }}</text><text class="ft-perm-row__sub">{{ record.ManagerIndc === "Y" ? t("FamilyTreePage.managerTag") : t("FamilyTreePage.memberTag") }}</text></view>
-                    <view class="ft-perm-ops"><view class="ft-perm-op ft-perm-op--danger" @tap="rejectPermission(record)"><text class="ft-perm-op__t--danger">{{ t("FamilyTreePage.remove") }}</text></view></view>
+                    <view class="ft-perm-row__main"><text class="ft-perm-row__name">{{ record.UserLocalName ||
+                      record.UserName
+                    }}</text><text class="ft-perm-row__sub">{{ record.ManagerIndc === "Y" ?
+                          t("FamilyTreePage.managerTag") :
+                          t("FamilyTreePage.memberTag") }}</text></view>
+                    <view class="ft-perm-ops">
+                      <view class="ft-perm-op ft-perm-op--danger" @tap="rejectPermission(record)"><text
+                          class="ft-perm-op__t--danger">{{ t("FamilyTreePage.remove") }}</text></view>
+                    </view>
                   </view>
                 </view>
 
                 <!-- 申请管理（旧系统同款）：常驻卡——非管理员点按钮发申请，管理员显示当前状态；原邀请占位卡无后端直接取消 -->
                 <view class="ft-card">
-                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.applyManage") }}</text></view>
-                  <view v-if="data.IsManager" class="ft-empty"><text>{{ t("FamilyTreePage.alreadyManagerTip") }}</text></view>
-                  <view v-else class="ft-apply" @tap="requestManager"><u-icon name="server-man" size="28" color="#ffffff" /><text>{{ t("FamilyTreePage.applyManage") }}</text></view>
+                  <view class="ft-card__head"><text class="ft-card__title">{{ t("FamilyTreePage.applyManage") }}</text>
+                  </view>
+                  <view v-if="data.IsManager" class="ft-empty"><text>{{ t("FamilyTreePage.alreadyManagerTip") }}</text>
+                  </view>
+                  <view v-else class="ft-apply" @tap="requestManager"><u-icon name="server-man" size="28"
+                      color="#ffffff" /><text>{{
+                        t("FamilyTreePage.applyManage") }}</text></view>
                 </view>
 
                 <!-- 删除族谱：原「...」更多菜单整体取消后，唯一入口放权限 tab 底部（仅有修改权） -->
                 <view v-if="data.IsCanAmend" class="ft-card">
                   <view class="ft-menu-item ft-menu-item--danger" @tap="onDeleteTree">
                     <view class="ft-menu-item__ic"><u-icon name="trash" size="28" color="#f0413e" /></view>
-                    <view class="ft-menu-item__main"><text class="ft-menu-item__t ft-menu-item__t--danger">{{ t("FamilyTreePage.deleteTree") }}</text><text class="ft-menu-item__d">{{ t("FamilyTreePage.deleteTreeHint") }}</text></view>
+                    <view class="ft-menu-item__main"><text class="ft-menu-item__t ft-menu-item__t--danger">{{
+                      t("FamilyTreePage.deleteTree") }}</text><text class="ft-menu-item__d">{{
+                          t("FamilyTreePage.deleteTreeHint")
+                        }}</text></view>
                   </view>
                 </view>
               </view>
@@ -1374,10 +1785,16 @@ defineExpose({
           <!-- 底部主操作条 -->
           <view class="ft-bottombar">
             <!-- 主按钮：选定当前族员（添加配偶/子女都以它为基准；建员入口在概览快捷区与关系卡头） -->
-            <view class="ft-bottombar__main" @tap="pickCurrentPerson"><u-icon name="account" size="30" color="#ffffff" /><text>{{ t("FamilyTreePage.selectMember") }}</text></view>
+            <view class="ft-bottombar__main" @tap="pickCurrentPerson"><u-icon name="account" size="30"
+                color="#ffffff" /><text>{{
+                  t("FamilyTreePage.selectMember") }}</text></view>
             <!-- 小系图/全系图：定制 SVG glyph（mask 随主题着色）；原分享入口随邀请占位弹层一并取消 -->
-            <view class="ft-bottombar__icon" @tap="subChartVisible = true"><view class="ft-glyph ft-glyph--bar ft-glyph--sub" /></view>
-            <view class="ft-bottombar__icon" @tap="fullChartVisible = true"><view class="ft-glyph ft-glyph--bar ft-glyph--full" /></view>
+            <view class="ft-bottombar__icon" @tap="subChartVisible = true">
+              <view class="ft-glyph ft-glyph--bar ft-glyph--sub" />
+            </view>
+            <view class="ft-bottombar__icon" @tap="fullChartVisible = true">
+              <view class="ft-glyph ft-glyph--bar ft-glyph--full" />
+            </view>
           </view>
         </template>
 
@@ -1828,10 +2245,9 @@ defineExpose({
       <!-- 族员选择弹窗（族员搜索 / 选配偶共用）：与邀请/编辑弹层同套底部 sheet，取消/确定齐全；行样式复用成员列表同款 -->
       <admin-pick-popup v-model:visible="personPickVisible"
         :title="personPickMode === 'current' ? t('FamilyTreePage.personSearch') : t('FamilyTreePage.pickSpouse')"
-        :columns="personPickConfig.columns.value" :loader="personPickConfig.loader"
-        :row-key="personPickConfig.rowKey" :title-key="personPickConfig.titleKey"
-        :fixed-filters="personPickConfig.fixedFilters.value" @confirm="onPersonPicked"
-        @close="personPickVisible = false">
+        :columns="personPickConfig.columns.value" :loader="personPickConfig.loader" :row-key="personPickConfig.rowKey"
+        :title-key="personPickConfig.titleKey" :fixed-filters="personPickConfig.fixedFilters.value"
+        @confirm="onPersonPicked" @close="personPickVisible = false">
         <template #row="{ row }">
           <view class="pick-person">
             <view class="ft-av" :style="avatarFallbackStyle(!!row.AvatarUrl, row.Gender)">
@@ -1868,6 +2284,144 @@ defineExpose({
       <!-- 族人档案弹层已取消：始祖卡单击不再弹窗，编辑走卡头「编辑资料」文字链 -->
 
       <!-- ===== 编辑族谱信息弹层（仅名称/始祖谱名/简介/公开四字段，关系与成员分开维护） ===== -->
+      <!-- ===== 交换文件导出弹层（信封加密在前端，密码只当密钥材料、后端不校验）===== -->
+      <u-popup :model-value="exportVisible" mode="bottom" round="24" @close="exportVisible = false">
+        <view class="ft-sheet">
+          <view class="ft-sheet__head">
+            <text class="ft-sheet__title">{{ t("FamilyTreePage.exchangeExportTitle") }}</text>
+            <u-icon name="close" size="32" color="#8f959e" @click="exportVisible = false" />
+          </view>
+          <view class="ft-sheet__form">
+            <view class="ft-chips">
+              <text class="ft-chip" :class="{ 'ft-chip--on': exScope === 'ALL' }" @tap="exScope = 'ALL'">{{
+                t("FamilyTreePage.exchangeScopeAll") }}</text>
+              <text class="ft-chip" :class="{ 'ft-chip--on': exScope === 'SUB' }" @tap="exScope = 'SUB'">{{
+                t("FamilyTreePage.exchangeScopeSub") }}</text>
+            </view>
+            <text v-if="exScope === 'SUB'" class="ft-exchange__sub">{{ t("FamilyTreePage.exchangeAnchorTip") }}：{{
+              currentPersonName || "-" }}</text>
+            <view class="ft-field">
+              <text class="ft-field__label">{{ t("FamilyTreePage.exchangePwd") }}</text>
+              <input v-model="exPassword" class="ft-field__input" :password="true" :maxlength="50"
+                :placeholder="t('FamilyTreePage.exchangePwdHint')">
+            </view>
+            <text class="ft-exchange__warn">{{ t("FamilyTreePage.exchangePwdLostTip") }}</text>
+            <view class="ft-switch-card">
+              <view class="ft-switch-card__main">
+                <text class="ft-switch-card__t">{{ t("FamilyTreePage.exchangeSaveLocal") }}</text>
+                <text class="ft-switch-card__d">{{ t("FamilyTreePage.exchangeSaveLocalTip") }}</text>
+              </view>
+              <u-switch :model-value="exSaveLocal" :active-color="primary" @change="onExSaveChange" />
+            </view>
+            <view class="ft-switch-card">
+              <view class="ft-switch-card__main">
+                <text class="ft-switch-card__t">{{ t("FamilyTreePage.exchangeUploadServer") }}</text>
+                <text class="ft-switch-card__d">{{ t("FamilyTreePage.exchangeUploadServerTip") }}</text>
+              </view>
+              <u-switch :model-value="exUploadServer" :active-color="primary" @change="onExUploadChange" />
+            </view>
+          </view>
+          <view class="ft-sheet__foot">
+            <view class="ft-sheet__btn" @tap="exportVisible = false"><text>{{ t("AdminPage.cancelBut") }}</text></view>
+            <view class="ft-sheet__btn ft-sheet__btn--primary" @tap="runExchangeExport"><text>{{ exchangeBusy ?
+              t("FamilyTreePage.exchangeRunning") : t("FamilyTreePage.exchangeExportBut") }}</text></view>
+          </view>
+        </view>
+      </u-popup>
+
+      <!-- ===== 交换文件导入弹层（一期仅全系整谱替换，二次确认里说清破坏性行为）===== -->
+      <u-popup :model-value="importVisible" mode="bottom" round="24" @close="importVisible = false">
+        <view class="ft-sheet">
+          <view class="ft-sheet__head">
+            <text class="ft-sheet__title">{{ t("FamilyTreePage.exchangeImportTitle") }}</text>
+            <view class="ft-exchange__head-ops">
+              <u-icon name="reload" size="32" color="#8f959e" @click="bkMode ? fetchBackups() : loadImportFiles()" />
+              <u-icon name="close" size="32" color="#8f959e" @click="importVisible = false" />
+            </view>
+          </view>
+          <view class="ft-sheet__form">
+            <!-- 导入模式：整谱替换（ALL）/ 支系替换（SUB）/ 备份还原（BK 明文列表，不需密码） -->
+            <view class="ft-chips">
+              <text v-if="data.IsManager" class="ft-chip" :class="{ 'ft-chip--on': imScope === 'ALL' && !bkMode }"
+                @tap="pickImScope('ALL')">{{ t("FamilyTreePage.exchangeScopeAll") }}</text>
+              <text class="ft-chip" :class="{ 'ft-chip--on': imScope === 'SUB' && !bkMode }"
+                @tap="pickImScope('SUB')">{{
+                  t("FamilyTreePage.exchangeScopeSub") }}</text>
+              <text class="ft-chip" :class="{ 'ft-chip--on': bkMode }" @tap="enterBkMode">{{
+                t("FamilyTreePage.exchangeScopeBk") }}</text>
+            </view>
+            <template v-if="!bkMode">
+              <text v-if="imScope === 'SUB' && !localFileName" class="ft-exchange__sub">{{
+                t("FamilyTreePage.exchangeSubAnchorRow") }}：{{ currentPersonName || "-" }}</text>
+              <!-- 本地上传通道：选中后暂时遮住服务器列表（两路互斥），点本地行可移除 -->
+              <view v-if="!localFileName" class="ft-exchange__row" @tap="pickLocalFile">
+                <view class="ft-exchange__row-main">
+                  <text class="ft-exchange__row-name">{{ t("FamilyTreePage.exchangeLocalPick") }}</text>
+                  <text class="ft-exchange__row-sub">{{ t("FamilyTreePage.exchangeLocalPickSub") }}</text>
+                </view>
+                <u-icon name="plus" size="28" :color="primary" />
+              </view>
+              <view v-else class="ft-exchange__row ft-exchange__row--on" @tap="clearLocalFile">
+                <view class="ft-exchange__row-main">
+                  <text class="ft-exchange__row-name">{{ localFileName }}</text>
+                  <text class="ft-exchange__row-sub">{{ t("FamilyTreePage.exchangeLocalTag") }}</text>
+                </view>
+                <u-icon name="close" size="28" color="#8f959e" />
+              </view>
+              <!-- 服务器文件列表限高滚动：文件多了不挤掉密码框/警告/按钮 -->
+              <scroll-view v-if="!localFileName" scroll-y class="ft-exchange__list">
+                <view v-if="importFilesLoading" class="ft-empty"><text>{{ t("FamilyTreePage.exchangeFileLoading")
+                }}</text></view>
+                <view v-else-if="!importFiles.length" class="ft-empty"><text>{{ t(imScope === "SUB" ?
+                  "FamilyTreePage.exchangeFileEmptySub" : "FamilyTreePage.exchangeFileEmpty") }}</text></view>
+                <view v-for="file in importFiles" :key="file.FileName" class="ft-exchange__row"
+                  :class="{ 'ft-exchange__row--on': pickedFileName === file.FileName }"
+                  @tap="pickedFileName = file.FileName">
+                  <view class="ft-exchange__row-main">
+                    <text class="ft-exchange__row-name">{{ file.FileName }}</text>
+                    <text class="ft-exchange__row-sub">{{ formatFileSize(file.Size) }} · {{
+                      formatFileTime(file.LastModified) }}</text>
+                  </view>
+                  <u-icon v-if="pickedFileName === file.FileName" name="checkbox-mark" size="28" :color="primary" />
+                </view>
+              </scroll-view>
+            </template>
+            <!-- 备份还原模式：本谱 BK 列表（一年内、时刻降序），选中即待还原回滚点；限高滚动防备份多了撑爆弹层 -->
+            <template v-else>
+              <scroll-view scroll-y class="ft-exchange__list">
+                <view v-if="backupLoading" class="ft-empty"><text>{{ t("FamilyTreePage.exchangeFileLoading") }}</text>
+                </view>
+                <view v-else-if="!backupFiles.length" class="ft-empty"><text>{{ t("FamilyTreePage.exchangeBackupEmpty")
+                }}</text></view>
+                <view v-for="bk in backupFiles" :key="bk.FileName" class="ft-exchange__row"
+                  :class="{ 'ft-exchange__row--on': pickedBackup === bk.FileName }" @tap="pickedBackup = bk.FileName">
+                  <view class="ft-exchange__row-main">
+                    <text class="ft-exchange__row-name">{{ formatFileTime(bk.LastModified) }}</text>
+                    <text class="ft-exchange__row-sub">{{ bk.FileName }} · {{ formatFileSize(bk.Size) }}</text>
+                  </view>
+                  <u-icon v-if="pickedBackup === bk.FileName" name="checkbox-mark" size="28" :color="primary" />
+                </view>
+              </scroll-view>
+            </template>
+            <view v-if="!bkMode" class="ft-field">
+              <text class="ft-field__label">{{ t("FamilyTreePage.exchangePwd") }}</text>
+              <input v-model="imPassword" class="ft-field__input" :password="true" :maxlength="50"
+                :placeholder="t('FamilyTreePage.exchangePwdHint')">
+            </view>
+            <text class="ft-exchange__warn">{{ t(bkMode ? "FamilyTreePage.exchangeRestoreWarn" :
+              "FamilyTreePage.exchangeImportWarn") }}</text>
+          </view>
+          <view class="ft-sheet__foot">
+            <view class="ft-sheet__btn" @tap="importVisible = false"><text>{{ t("AdminPage.cancelBut") }}</text></view>
+            <view v-if="!bkMode" class="ft-sheet__btn ft-sheet__btn--primary" @tap="runExchangeImport"><text>{{
+              exchangeBusy ?
+                t("FamilyTreePage.exchangeRunning") : t("FamilyTreePage.exchangeImportBut") }}</text></view>
+            <view v-else class="ft-sheet__btn ft-sheet__btn--primary" @tap="runRestoreBackup"><text>{{ exchangeBusy ?
+              t("FamilyTreePage.exchangeRunning") : t("FamilyTreePage.exchangeRestoreBut") }}</text></view>
+          </view>
+        </view>
+      </u-popup>
+
       <u-popup :model-value="treeEditVisible" mode="bottom" round="24" @close="cancelTreeEdit">
         <view class="ft-sheet">
           <view class="ft-sheet__head">
@@ -1877,16 +2431,19 @@ defineExpose({
           <view class="ft-sheet__form">
             <view class="ft-field">
               <text class="ft-field__label">{{ t("FamilyTreePage.treeName") }}</text>
-              <input v-model="tree.TreeName" class="ft-field__input" :maxlength="50" :placeholder="t('FamilyTreePage.treeNameRequired')">
+              <input v-model="tree.TreeName" class="ft-field__input" :maxlength="50"
+                :placeholder="t('FamilyTreePage.treeNameRequired')">
             </view>
             <view class="ft-field">
               <text class="ft-field__label">{{ t("FamilyTreePage.ancestorGenealogyName") }}</text>
-              <input v-model="tree.AncestorPersonGenealogyName" class="ft-field__input" :maxlength="50" :placeholder="t('FamilyTreePage.ancestorGenealogyName')">
+              <input v-model="tree.AncestorPersonGenealogyName" class="ft-field__input" :maxlength="50"
+                :placeholder="t('FamilyTreePage.ancestorGenealogyName')">
             </view>
             <view class="ft-field">
               <text class="ft-field__label">{{ t("FamilyTreePage.brief") }}</text>
               <view class="ft-field__area">
-                <textarea v-model="tree.Brief" class="ft-field__textarea" :maxlength="60" :placeholder="t('FamilyTreePage.noBrief')" />
+                <textarea v-model="tree.Brief" class="ft-field__textarea" :maxlength="60"
+                  :placeholder="t('FamilyTreePage.noBrief')" />
                 <text class="ft-field__counter">{{ (tree.Brief || "").length }}/60</text>
               </view>
             </view>
@@ -1900,7 +2457,9 @@ defineExpose({
           </view>
           <view class="ft-sheet__foot">
             <view class="ft-sheet__btn" @tap="cancelTreeEdit"><text>{{ t("AdminPage.cancelBut") }}</text></view>
-            <view class="ft-sheet__btn ft-sheet__btn--primary" @tap="saveTreeEdit"><text>{{ t("AdminPage.saveBut") }}</text></view>
+            <view class="ft-sheet__btn ft-sheet__btn--primary" @tap="saveTreeEdit"><text>{{ t("AdminPage.saveBut")
+            }}</text>
+            </view>
           </view>
         </view>
       </u-popup>
@@ -2783,7 +3342,7 @@ defineExpose({
   align-items: center;
   gap: 4rpx;
 
-  & + &::before {
+  &+&::before {
     content: "";
     position: absolute;
     top: 6rpx;
@@ -3406,6 +3965,87 @@ defineExpose({
   }
 }
 
+/* ===== 交换文件弹层专属：说明小字/警示/文件行（选中态跟主题 soft 底） ===== */
+.ft-exchange__sub {
+  display: block;
+  margin-bottom: 16rpx;
+  font-size: 24rpx;
+  color: #8f959e;
+}
+
+.ft-exchange__warn {
+  display: block;
+  margin: 8rpx 0 16rpx;
+  font-size: 22rpx;
+  line-height: 1.6;
+  color: #f0413e;
+}
+
+.ft-exchange__head-ops {
+  display: flex;
+  align-items: center;
+  gap: 24rpx;
+}
+
+/* 导入/还原弹层内的文件与备份列表：限高滚动，条目再多也不撑爆弹层（密码框/警告/按钮始终可见） */
+.ft-exchange__list {
+  max-height: 42vh;
+}
+
+/* H5 端给滚动条一个可见的细条样式（默认 overlay 条在桌面浏览器不可见，用户会以为列表被截断） */
+/* #ifdef H5 */
+.ft-exchange__list ::v-deep ::-webkit-scrollbar {
+  width: 6px;
+  appearance: none;
+  -webkit-appearance: none;
+}
+
+.ft-exchange__list ::v-deep ::-webkit-scrollbar-thumb {
+  border-radius: 3px;
+  background: rgba(128, 128, 128, 0.35);
+}
+
+.ft-exchange__list ::v-deep ::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+/* #endif */
+
+.ft-exchange__row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16rpx;
+  padding: 20rpx 24rpx;
+  margin-bottom: 12rpx;
+  border-radius: 20rpx;
+  background: var(--fg-soft, rgba(0, 0, 0, 0.03));
+}
+
+.ft-exchange__row--on {
+  border: 2rpx solid var(--fg-primary, #12b35d);
+}
+
+.ft-exchange__row-main {
+  display: flex;
+  flex-direction: column;
+  gap: 6rpx;
+  overflow: hidden;
+}
+
+.ft-exchange__row-name {
+  font-size: 26rpx;
+  font-weight: 600;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+}
+
+.ft-exchange__row-sub {
+  font-size: 22rpx;
+  color: #8f959e;
+}
+
 .ft-switch-card {
   display: flex;
   align-items: center;
diff --git a/uniapp/youjiala/src/composables/useFamilyTreeExchange.ts b/uniapp/youjiala/src/composables/useFamilyTreeExchange.ts
new file mode 100644
index 0000000..6ced914
--- /dev/null
+++ b/uniapp/youjiala/src/composables/useFamilyTreeExchange.ts
@@ -0,0 +1,278 @@
+/**
+ * 族谱 .fm 导入导出流程编排（配合 utils/familyTreeExchange.ts 的信封加解密）：
+ * - 导出：ExportFamilyTree 拉后端权限闸裁剪后的明文 payload → 信封加密 →
+ *   设备落盘（saveFileBytes）和/上传交换目录（SaveExchangeFile，base64 通道）；
+ * - 导入：ListExchangeFiles 选文件 → ReadExchangeFile 拿 base64 → 解密验 MAC →
+ *   校验 Scope==='ALL' → ImportFamilyTree 整谱替换（后端自动备份回滚点）。
+ * 文件名按 D1 口径由前端拼装（A{treeId}_{ts}.fm / P{treeId}-{personId}_{ts}.fm），
+ * 与后端白名单正则同源；加解密密钥 = PBKDF2(弹窗输入的密码 ⊕ GetExchangeFactor 因子)。
+ * 密码只当密钥材料使用，后端不校验，忘了只能重新导出（提示语在 UI 词条里）。
+ */
+import type { FamilyTreeExchangeData } from "@/data/auto/familyTreeExchangeData";
+import type { FamilyTreeExchangeFileInfo } from "@/data/auto/familyTreeExchangeFileInfo";
+import { ref } from "vue";
+import familyTreeService from "@/service/master/familyTreeService";
+import { saveFileBytes } from "@/utils/dmsBytes";
+import {
+  bytesToString,
+  decryptEnvelope,
+  encryptEnvelope,
+  stringToBytes,
+} from "@/utils/familyTreeExchange";
+
+/** 导出范围（与后端 FamilyTreeExchangeScope 常量同值） */
+export type ExchangeScope = "ALL" | "SUB";
+
+/** 解密后的载荷预览（导入确认弹窗展示用） */
+export interface ExchangePreview {
+  TreeName: string;
+  Scope: string;
+  PersonCount: number;
+  ExportedAt: string;
+  ExportedBy: string;
+}
+
+/** 14 位时间戳（yyyyMMddHHmmss，D1 文件名同款，后端正则依赖它） */
+function fileTimestamp(): string {
+  const d = new Date();
+  const pad = (n: number): string => String(n).padStart(2, "0");
+  return `${d.getFullYear()}${pad(d.getMonth() + 1)}${pad(d.getDate())}${pad(d.getHours())}${pad(d.getMinutes())}${pad(d.getSeconds())}`;
+}
+
+/** 按 D1 口径拼 .fm 文件名（全系 A 前缀 / 小系 P 前缀带锚点） */
+export function buildExportFileName(
+  scope: ExchangeScope,
+  treeId: string,
+  anchorPersonId?: string,
+): string {
+  const ts = fileTimestamp();
+  return scope === "ALL"
+    ? `A${treeId}_${ts}.fm`
+    : `P${treeId}-${anchorPersonId ?? ""}_${ts}.fm`;
+}
+
+/** 文件字节数友好显示（列表行小字） */
+export function formatFileSize(size: number): string {
+  if (size >= 1024 * 1024) {
+    return `${(size / 1024 / 1024).toFixed(1)} MB`;
+  }
+  if (size >= 1024) {
+    return `${(size / 1024).toFixed(1)} KB`;
+  }
+  return `${size} B`;
+}
+
+/** 时间显示归一（服务端 Date/ISO 字符串都吃，取到分钟） */
+export function formatFileTime(value?: Date | string): string {
+  return String(value ?? "")
+    .replace("T", " ")
+    .slice(0, 16);
+}
+
+/** 从 payload 抽确认弹窗要用的预览信息（防御式取值，坏数据交给校验拒掉） */
+function previewOf(payload: FamilyTreeExchangeData): ExchangePreview {
+  return {
+    TreeName: payload.FamilyTree?.TreeName ?? "-",
+    Scope: payload.Scope ?? "-",
+    PersonCount: payload.Persons?.length ?? 0,
+    ExportedAt: formatFileTime(payload.ExportedAt as unknown as Date | string),
+    ExportedBy: payload.ExportedBy ?? "-",
+  };
+}
+
+export function useFamilyTreeExchange() {
+  /** 流程互斥闸：导出/导入都是多步链（拉明文→加密→落盘/上传），期间禁用重入 */
+  const exchangeBusy = ref(false);
+
+  /**
+   * 导出全链：返回落盘/上传用的文件名；任何一步失败都抛错由调用方 toast。
+   * saveLocal / uploadServer 至少给一个 true（UI 层已做勾选兜底校验）。
+   */
+  async function exportTree(opts: {
+    treeId: string;
+    scope: ExchangeScope;
+    anchorPersonId?: string;
+    password: string;
+    saveLocal: boolean;
+    uploadServer: boolean;
+  }): Promise<string> {
+    if (exchangeBusy.value) {
+      return Promise.reject(new Error("exchange-busy"));
+    }
+    exchangeBusy.value = true;
+    try {
+      const factor = await familyTreeService.GetExchangeFactor();
+      const payload = await familyTreeService.ExportFamilyTree({
+        treeId: opts.treeId,
+        scope: opts.scope,
+        anchorPersonId: opts.scope === "SUB" ? (opts.anchorPersonId ?? "") : "",
+      });
+      if (!payload || !payload.Persons?.length) {
+        throw new Error("exchange-export-empty");
+      }
+      const fileName = buildExportFileName(
+        opts.scope,
+        opts.treeId,
+        opts.anchorPersonId,
+      );
+      const fileText = encryptEnvelope(
+        JSON.stringify(payload),
+        opts.password,
+        factor,
+      );
+      const bytes = stringToBytes(fileText);
+      if (opts.saveLocal) {
+        await saveFileBytes({ bytes, name: fileName });
+      }
+      if (opts.uploadServer) {
+        await familyTreeService.SaveExchangeFile({
+          fileName,
+          contentBase64: uni.arrayBufferToBase64(bytes),
+        });
+      }
+      return fileName;
+    } finally {
+      exchangeBusy.value = false;
+    }
+  }
+
+  /** 交换目录文件列表（后端已按 LastModified 降序）：按导入模式过滤 Scope，全系/小系各看各的文件 */
+  async function listFiles(
+    treeId: string,
+    scope: ExchangeScope,
+  ): Promise<FamilyTreeExchangeFileInfo[]> {
+    const files = await familyTreeService.ListExchangeFiles(treeId);
+    return (files ?? []).filter(
+      (file: FamilyTreeExchangeFileInfo) => file.Scope === scope,
+    );
+  }
+
+  /**
+   * 解密校验 .fm 信封文本（服务器回读与本地选文件两路共用）：
+   * expectScope=null 时自动采纳文件自身范围（本地文件跨谱嫁接场景，模式跟着 payload 走）；
+   * 密码错/文件坏/范围不符/旧版小系无锚点都抛错，不落入替换环节。
+   */
+  async function decryptPayload(
+    fileText: string,
+    password: string,
+    expectScope: ExchangeScope | null,
+  ): Promise<{
+    payload: FamilyTreeExchangeData;
+    preview: ExchangePreview;
+    scope: ExchangeScope;
+  }> {
+    const factor = await familyTreeService.GetExchangeFactor();
+    const plainText = decryptEnvelope(fileText, password, factor);
+    const payload = JSON.parse(plainText) as FamilyTreeExchangeData;
+    const scope = (expectScope ??
+      (payload.Scope === "SUB" ? "SUB" : "ALL")) as ExchangeScope;
+    // 指定了模式则文件范围必须同构；自动模式（本地文件）取文件自身
+    if (payload.Scope !== scope) {
+      throw new Error("exchange-scope-mismatch");
+    }
+    // 二期：小系文件验锚点标记（一期旧导出文件无此字段，后端也会拒，这里早一步给友好提示）
+    if (scope === "SUB" && !payload.AnchorPersonId) {
+      throw new Error("exchange-legacy-sub");
+    }
+    if (!payload.Persons?.length || !payload.FamilyTree) {
+      throw new Error("exchange-file-bad");
+    }
+    return { payload, preview: previewOf(payload), scope };
+  }
+
+  /**
+   * 读服务器交换目录文件并解密校验（导入第一步）：
+   * 成功返回 { payload, preview }；密码错/文件坏/范围与模式不符都抛错，不落入替换环节。
+   * payload 留在前端内存里，确认后原样交给 importTree/importSubTree（替换是二次确认后的独立动作）。
+   */
+  async function readAndDecrypt(
+    fileName: string,
+    password: string,
+    expectScope: ExchangeScope,
+  ): Promise<{ payload: FamilyTreeExchangeData; preview: ExchangePreview }> {
+    const contentBase64 = await familyTreeService.ReadExchangeFile(fileName);
+    if (!contentBase64) {
+      throw new Error("exchange-file-bad");
+    }
+    const fileText = bytesToString(uni.base64ToArrayBuffer(contentBase64));
+    return decryptPayload(fileText, password, expectScope);
+  }
+
+  /** 整谱替换执行（readAndDecrypt 通过并经 UI 二次确认后调用）：返回导入人数 */
+  async function importTree(
+    targetTreeId: string,
+    payload: FamilyTreeExchangeData,
+  ): Promise<number> {
+    if (exchangeBusy.value) {
+      return Promise.reject(new Error("exchange-busy"));
+    }
+    exchangeBusy.value = true;
+    try {
+      return await familyTreeService.ImportFamilyTree({
+        targetTreeId,
+        data: payload,
+      });
+    } finally {
+      exchangeBusy.value = false;
+    }
+  }
+
+  /** 二期支系替换执行（P1=B）：锚点用目标谱当前族员的 PersonId，后端验同人与权限闸；返回新插人数 */
+  async function importSubTree(
+    targetTreeId: string,
+    anchorPersonId: string,
+    payload: FamilyTreeExchangeData,
+  ): Promise<number> {
+    if (exchangeBusy.value) {
+      return Promise.reject(new Error("exchange-busy"));
+    }
+    exchangeBusy.value = true;
+    try {
+      return await familyTreeService.ImportSubTree({
+        targetTreeId,
+        anchorPersonId,
+        data: payload,
+      });
+    } finally {
+      exchangeBusy.value = false;
+    }
+  }
+
+  /** 三期备份列表（R1 成员可见 / R5 只有一年内）：后端按备份时刻降序，Scope 固定回 "BK" */
+  async function listBackups(
+    treeId: string,
+  ): Promise<FamilyTreeExchangeFileInfo[]> {
+    return (await familyTreeService.ListBackups(treeId)) ?? [];
+  }
+
+  /** 备份还原（R2 导坏了回滚点）：后端直接读 BK 明文回放整谱替换，还原前自动再备份现谱（R3）；返回还原人数 */
+  async function restoreBackup(
+    targetTreeId: string,
+    backupFileName: string,
+  ): Promise<number> {
+    if (exchangeBusy.value) {
+      return Promise.reject(new Error("exchange-busy"));
+    }
+    exchangeBusy.value = true;
+    try {
+      return await familyTreeService.RestoreBackup({
+        targetTreeId,
+        backupFileName,
+      });
+    } finally {
+      exchangeBusy.value = false;
+    }
+  }
+
+  return {
+    exchangeBusy,
+    exportTree,
+    listFiles,
+    decryptPayload,
+    readAndDecrypt,
+    importTree,
+    importSubTree,
+    listBackups,
+    restoreBackup,
+  };
+}
diff --git a/uniapp/youjiala/src/data/auto/familyTreeExchangeData.ts b/uniapp/youjiala/src/data/auto/familyTreeExchangeData.ts
new file mode 100644
index 0000000..ed368a7
--- /dev/null
+++ b/uniapp/youjiala/src/data/auto/familyTreeExchangeData.ts
@@ -0,0 +1,16 @@
+import { FamilyTreeEntity } from "./familyTreeEntity";
+import { FamilyPersonEntity } from "./familyPersonEntity";
+import { FamilyTreeSpouseMapEntity } from "./familyTreeSpouseMapEntity";
+import { FamilyTreeChildrenMapEntity } from "./familyTreeChildrenMapEntity";
+export class FamilyTreeExchangeData {
+  public Scope: string = "";
+  public FamilyTree: FamilyTreeEntity = new FamilyTreeEntity();
+  public Persons: FamilyPersonEntity[] = [];
+  public SpouseMaps: FamilyTreeSpouseMapEntity[] = [];
+  public ChildrenMaps: FamilyTreeChildrenMapEntity[] = [];
+  public PersonCount: number = 0;
+  // 二期：小系导出锚点人号（支系替换导入验明同一人用；ALL 为空）
+  public AnchorPersonId: string = "";
+  public ExportedBy: string = "";
+  public ExportedAt: Date = new Date();
+}
diff --git a/uniapp/youjiala/src/data/auto/familyTreeExchangeFileInfo.ts b/uniapp/youjiala/src/data/auto/familyTreeExchangeFileInfo.ts
new file mode 100644
index 0000000..062f5c6
--- /dev/null
+++ b/uniapp/youjiala/src/data/auto/familyTreeExchangeFileInfo.ts
@@ -0,0 +1,8 @@
+export class FamilyTreeExchangeFileInfo {
+  public FileName: string = "";
+  public Size: number = 0;
+  public LastModified: Date = new Date();
+  public Scope: string = "";
+  public TreeId: string = "";
+  public AnchorPersonId: string = "";
+}
diff --git a/uniapp/youjiala/src/data/auto/familyTreeFileLogEntity.ts b/uniapp/youjiala/src/data/auto/familyTreeFileLogEntity.ts
new file mode 100644
index 0000000..dd1d04c
--- /dev/null
+++ b/uniapp/youjiala/src/data/auto/familyTreeFileLogEntity.ts
@@ -0,0 +1,46 @@
+
+export class FamilyTreeFileLogEntity  
+{
+  public CreatedDatetime: Date  = new Date();
+  public CreatedBy: string = "";
+  public UpdatedDatetime: Date  = new Date();
+  public UpdatedBy: string = "";
+  public LogId: number = 0;
+  public TreeId: string = "";
+  public Action: string = "";
+  public Scope: string = "";
+  public AnchorPersonId: string = "";
+  public FileName: string = "";
+  public PersonCount: number = 0;
+  public Result: string = "";
+  public Message: string = "";
+
+  static readonly CREATED_DATETIME : string ='CreatedDatetime';
+  static readonly CREATED_BY : string ='CreatedBy';
+  static readonly UPDATED_DATETIME : string ='UpdatedDatetime';
+  static readonly UPDATED_BY : string ='UpdatedBy';
+  static readonly LOG_ID : string ='LogId';
+  static readonly TREE_ID : string ='TreeId';
+  static readonly ACTION : string ='Action';
+  static readonly SCOPE : string ='Scope';
+  static readonly ANCHOR_PERSON_ID : string ='AnchorPersonId';
+  static readonly FILE_NAME : string ='FileName';
+  static readonly PERSON_COUNT : string ='PersonCount';
+  static readonly RESULT : string ='Result';
+  static readonly MESSAGE : string ='Message';
+  static readonly DB_NAME_FAMILY_TREE_FILE_LOG : string ='family_tree_file_log';
+  static readonly DB_NAME_FIELDS : string ='created_datetime,created_by,updated_datetime,updated_by,log_id,tree_id,action,scope,anchor_person_id,file_name,person_count,result,message';
+  static readonly DB_CREATED_DATETIME : string ='created_datetime';
+  static readonly DB_CREATED_BY : string ='created_by';
+  static readonly DB_UPDATED_DATETIME : string ='updated_datetime';
+  static readonly DB_UPDATED_BY : string ='updated_by';
+  static readonly DB_LOG_ID : string ='log_id';
+  static readonly DB_TREE_ID : string ='tree_id';
+  static readonly DB_ACTION : string ='action';
+  static readonly DB_SCOPE : string ='scope';
+  static readonly DB_ANCHOR_PERSON_ID : string ='anchor_person_id';
+  static readonly DB_FILE_NAME : string ='file_name';
+  static readonly DB_PERSON_COUNT : string ='person_count';
+  static readonly DB_RESULT : string ='result';
+  static readonly DB_MESSAGE : string ='message';
+}
diff --git a/uniapp/youjiala/src/locale/lang/en-US.json b/uniapp/youjiala/src/locale/lang/en-US.json
index a0747f6..e55149e 100644
--- a/uniapp/youjiala/src/locale/lang/en-US.json
+++ b/uniapp/youjiala/src/locale/lang/en-US.json
@@ -165,6 +165,57 @@
     "ancestryChart": "Full Chart",
     "chartEmpty": "No family tree data",
     "applyManage": "Apply for Manager",
+    "exchangeExportEntry": "Export",
+    "exchangeImportEntry": "Import",
+    "exchangeExportTitle": "Export Family Tree File",
+    "exchangeImportTitle": "Import Family Tree File",
+    "exchangeScopeAll": "Full Tree",
+    "exchangeScopeSub": "Sub Tree",
+    "exchangeAnchorTip": "Sub-tree export anchor (current member)",
+    "exchangePwd": "File Password",
+    "exchangePwdHint": "Set an encryption password (4+ characters)",
+    "exchangePwdShort": "Password must be at least 4 characters",
+    "exchangePwdLostTip": "This password is the only key for encryption/decryption and cannot be recovered by the server. Forget it and you must export again",
+    "exchangeSaveLocal": "Save to Device",
+    "exchangeSaveLocalTip": "Download the encrypted .fm file to this device",
+    "exchangeUploadServer": "Upload to Server",
+    "exchangeUploadServerTip": "Store in this tree's exchange folder for cross-device import",
+    "exchangeTargetTip": "Choose at least one export target",
+    "exchangeRunning": "Processing...",
+    "exchangeExportBut": "Start Export",
+    "exchangeExportDone": "Exported: {name}",
+    "exchangeExportEmpty": "No data to export (insufficient permission or empty tree)",
+    "exchangeFailed": "Operation failed",
+    "exchangeFileLoading": "Loading file list...",
+    "exchangeFileEmpty": "No full-tree file of this tree in the exchange folder yet",
+    "exchangeImportWarn": "Before importing: the file will completely replace the current tree; same-tree files keep member IDs and account bindings unchanged; cross-tree grafted files and sub-tree imports renumber everyone and unbind accounts, re-approval needed; an automatic backup allows rollback",
+    "exchangeImportBut": "Decrypt & Import",
+    "exchangePickFileTip": "Select a file to import first",
+    "exchangeSubDenied": "No permission to export the sub-tree of the current anchor",
+    "exchangeSubAnchorMissing": "Pick the replacement anchor in 'Select Member' before importing a sub-tree file",
+    "exchangeSubAnchorRow": "Sub-tree replacement anchor (current member)",
+    "exchangeFileEmptySub": "No sub-tree file of this tree in the exchange folder yet",
+    "exchangeLocalPick": "Upload a .fm file from this device",
+    "exchangeLocalPickSub": "Cross-tree grafting: pick a file exported by another tree; import mode is detected automatically",
+    "exchangeLocalTag": "Local file — tap to remove",
+    "exchangeLocalBad": "Cannot read this file, please pick again",
+    "exchangeScopeBk": "Restore",
+    "exchangeBackupEmpty": "No restorable backup for this tree yet",
+    "exchangePickBackupTip": "Select a backup to restore first",
+    "exchangeRestoreBut": "Restore This Backup",
+    "exchangeRestoreWarn": "Before restoring: the whole tree rolls back to the selected backup moment; member IDs and account bindings are kept unchanged, data is replayed 100%; the current tree is auto-backed-up first, so you can step back again",
+    "exchangeRestoreConfirmTitle": "Confirm Backup Restore",
+    "exchangeRestoreConfirm": "The whole tree will roll back to the backup taken at {time}: current data is replaced by that snapshot, member IDs and bindings are kept unchanged, data replayed 100%. The current tree is auto-backed-up first and can be stepped back again. Continue?",
+    "exchangeRestoreDone": "Restored {count} members",
+    "exchangeScopeMismatch": "The selected file does not match the current import mode. Switch mode or pick another file",
+    "exchangeLegacySub": "This legacy sub-tree file has no anchor marker. Please re-export and import again",
+    "exchangeImportConfirmSubTitle": "Confirm Sub-tree Replacement",
+    "exchangeImportConfirmSub": "Will replace everything of member \"{anchor}\". An automatic backup allows rollback. Continue?",
+    "exchangeDecryptFailed": "Wrong password or corrupted file",
+    "exchangeImportConfirmTitle": "Confirm Full Replacement",
+    "exchangeImportConfirm": "File \"{tree}\" (exported {time}, {count} members) comes from ANOTHER tree and will completely replace the current tree: everyone is renumbered, members unbound, permissions need reconfiguration. An automatic backup allows rollback. Continue?",
+    "exchangeImportConfirmSame": "File \"{tree}\" (exported {time}, {count} members) is from THIS tree and will be replayed whole: member IDs and account bindings are kept unchanged, data restored 100%. An automatic backup allows rollback. Continue?",
+    "exchangeImportDone": "Imported {count} members",
     "bindAccount": "Bind Account",
     "unbindAccount": "Unbind",
     "unbindSuccessTip": "Binding with the member has been removed",
diff --git a/uniapp/youjiala/src/locale/lang/zh-CN.json b/uniapp/youjiala/src/locale/lang/zh-CN.json
index d8a6761..dcf1551 100644
--- a/uniapp/youjiala/src/locale/lang/zh-CN.json
+++ b/uniapp/youjiala/src/locale/lang/zh-CN.json
@@ -165,6 +165,57 @@
     "ancestryChart": "全系图",
     "chartEmpty": "暂无族谱数据",
     "applyManage": "申请管理",
+    "exchangeExportEntry": "导出",
+    "exchangeImportEntry": "导入",
+    "exchangeExportTitle": "导出族谱文件",
+    "exchangeImportTitle": "导入族谱文件",
+    "exchangeScopeAll": "全系",
+    "exchangeScopeSub": "小系",
+    "exchangeAnchorTip": "小系导出锚点（当前族员）",
+    "exchangePwd": "文件密码",
+    "exchangePwdHint": "设置加密密码（至少 4 位）",
+    "exchangePwdShort": "密码至少 4 位",
+    "exchangePwdLostTip": "密码是加解密的唯一钥匙，服务器也无法找回：请牢记，忘了只能重新导出",
+    "exchangeSaveLocal": "保存到设备",
+    "exchangeSaveLocalTip": "生成 .fm 加密文件下载到本机",
+    "exchangeUploadServer": "上传到服务器",
+    "exchangeUploadServerTip": "存入本谱交换目录，换设备也能导入",
+    "exchangeTargetTip": "至少选择一个导出目标",
+    "exchangeRunning": "处理中…",
+    "exchangeExportBut": "开始导出",
+    "exchangeExportDone": "导出完成：{name}",
+    "exchangeExportEmpty": "没有可导出的数据（权限不足或族谱为空）",
+    "exchangeFailed": "操作失败",
+    "exchangeFileLoading": "文件列表加载中…",
+    "exchangeFileEmpty": "交换目录还没有本谱的全系文件",
+    "exchangeImportWarn": "导入前须知：文件内容将整体替换当前族谱；同谱文件保留人员编号与账号绑定不变；跨谱嫁接文件与小系导入会重编号并解除绑定，需重新审批；替换前自动备份可回滚",
+    "exchangeImportBut": "解密并导入",
+    "exchangePickFileTip": "先选择要导入的文件",
+    "exchangeSubDenied": "没有当前锚点小系的导出权限",
+    "exchangeSubAnchorMissing": "请先在「选择族员」里选好支系替换锚点再导入小系文件",
+    "exchangeSubAnchorRow": "支系替换锚点（当前族员）",
+    "exchangeFileEmptySub": "交换目录还没有本谱的小系文件",
+    "exchangeLocalPick": "从本机上传 .fm 文件",
+    "exchangeLocalPickSub": "跨谱嫁接：选其他谱导出的文件，导入模式按文件自动识别",
+    "exchangeLocalTag": "本地文件，点击可移除",
+    "exchangeLocalBad": "无法读取该文件，请重新选择",
+    "exchangeScopeBk": "备份还原",
+    "exchangeBackupEmpty": "本谱还没有可还原的备份",
+    "exchangePickBackupTip": "先选择要还原的备份",
+    "exchangeRestoreBut": "还原此备份",
+    "exchangeRestoreWarn": "还原前须知：整谱将回滚到所选备份时刻，人员编号与绑定原样保留、数据 100% 回放；还原前会自动备份当前谱，还能再退回去",
+    "exchangeRestoreConfirmTitle": "确认备份还原",
+    "exchangeRestoreConfirm": "整谱将回滚到备份时刻 {time}：当前数据全部替换为当时的快照，人员编号与绑定原样保留、数据 100% 回放；还原前会自动备份当前谱可再回退。确定继续吗？",
+    "exchangeRestoreDone": "还原完成，共 {count} 位族人",
+    "exchangeScopeMismatch": "所选文件与当前导入模式不匹配，请切换模式或更换文件",
+    "exchangeLegacySub": "旧版小系文件未标记锚点，请重新导出后再导入",
+    "exchangeImportConfirmSubTitle": "确认支系替换",
+    "exchangeImportConfirmSub": "将替换当前族员「{anchor}」的全部，自动备份可回滚。确定继续吗?",
+    "exchangeDecryptFailed": "密码错误或文件已损坏",
+    "exchangeImportConfirmTitle": "确认整谱替换",
+    "exchangeImportConfirm": "文件「{tree}」（{time} 导出，{count} 人）来自其他族谱，将整体替换当前族谱：全员重新编号、族人解除绑定、成员权限需重配，替换前自动备份可回滚。确定继续吗？",
+    "exchangeImportConfirmSame": "文件「{tree}」（{time} 导出，{count} 人）是本谱文件，将整谱回放：人员编号与账号绑定原样保留，数据 100% 恢复，替换前自动备份可回滚。确定继续吗？",
+    "exchangeImportDone": "导入完成，共 {count} 位族人",
     "bindAccount": "绑定账号",
     "unbindAccount": "解除绑定",
     "unbindSuccessTip": "已解除与族员的绑定",
diff --git a/uniapp/youjiala/src/md/family-tree-exchange.md b/uniapp/youjiala/src/md/family-tree-exchange.md
new file mode 100644
index 0000000..6ee201a
--- /dev/null
+++ b/uniapp/youjiala/src/md/family-tree-exchange.md
@@ -0,0 +1,288 @@
+# 族谱导入导出闭环功能归档
+
+> 适用范围：优嘉拉（youjiala）族谱 `.fm` 交换文件的**导出 / 导入 / 备份 / 还原**全链路。
+> 本文是该特性的单一事实来源（single source of truth），涵盖设计决策、数据结构、加密、权限、后端算法、前端编排、测试矩阵与已知边界。
+> 涉及工程：后端 `CloudBuilder`（.NET 8 / Furion）、前端 `uniapp youjiala`（Vue3 + crypto-js）。
+
+---
+
+## 1. 决策沿革（一句话版）
+
+| 期次 | 能力 | 关键决策代号 |
+|---|---|---|
+| 一期 | 全系 `.fm` 导出/导入、备份还原 | D1~D8、R1~R6 |
+| 二期 | 小系（支系）导出 + 锚点整家替换导入（方案 C） | P1~P7 |
+| 三期 | 权限行随号迁移/清理、备份含权限快照、备份密文落盘 | 绝对闭环 |
+
+核心口径演进：
+- **方案 C**：小系导入时锚点本人资料也整体覆盖，锚点配偶"纯入配"随删随插（整家替换）。
+- **同谱 100% 完整性**：`treeId` 相同（全系备份还原、服务器同谱文件导入）时，人员编号可保留（用户拍板"编号可以变"→ 实际同谱保留原号、跨谱才重编号），资料/绑定/关系 100% 回放，权限行不悬挂。
+- **绝对闭环**：权限行进备份 JSON，还原时随谱回滚；备份整份以服务端 AES 密文落盘。
+
+---
+
+## 2. 名词与数据结构
+
+### 2.1 `FamilyTreeExchangeData`（明文 payload / 备份快照载体）
+`CloudBuilder.Master/Data/FamilyTreeExchangeData.cs`
+
+| 字段 | 含义 | 备注 |
+|---|---|---|
+| `Scope` | `ALL` / `SUB` | 交换范围常量 `FamilyTreeExchangeScope` |
+| `FamilyTree` | 谱信息行（含**源 TreeId**） | **同谱判定依据**：`data.FamilyTree.TreeId == targetTreeId` |
+| `Persons[]` | 人员实体 | 全系=全谱；小系=家支闭包子集 |
+| `SpouseMaps[]` | 夫妻关系行 | 两端都须在集合内 |
+| `ChildrenMaps[]` | 父子关系行 | 两端都须在集合内 |
+| `Permissions[]` | **权限行快照** | **仅备份 BK 写入**；`.fm` 恒空——防账号名外泄、防外部文件携权限行劫持本谱 |
+| `AnchorPersonId` | 小系锚点人号 | ALL 为空；二期起写入 payload |
+| `ExportedBy` | 发起人 `service.UserId` | 备份归属隔离依据 |
+| `ExportedAt` | 导出时刻 | |
+| `PersonCount` | 计算属性 `Persons.Length` | |
+
+### 2.2 权限真源
+真正的人员—账号绑定关系存 `family_tree_permission`（复合主键 `PersonId + TreeId + UserName`）。`family_person` 表的 `BindUserId / IsBindUser` 是遗留字段（无业务写入，但同谱回放会原样保留）。
+
+---
+
+## 3. 权限体系
+
+### 3.1 三档身份（`FamilyTreePermissionHelper`）
+- **普通用户**：与本谱无生效权限行。
+- **成员**：有 `ValidIndc=YES` 且绑定到自己族员的权限行。可小系导出/导入（限自家支锚点）、还原自己的备份。
+- **管理员**：有 `ManagerIndc=YES` 行。可全系导出/整谱替换导入、看全部备份、任意锚点小系。
+- 判定 `IsManager` 按 `UserName + ManagerIndc`，**不看 PersonId**，故重编号不影响管理员身份。
+
+### 3.2 绑定三重闸（`BindSelfPerson`）
+1. 登录已验 `UserIsValidIndc=YES` + 未锁定（`AuthService.Login`）；
+2. 本谱审批行 `ValidIndc=YES`；
+3. 同名闸：族员「姓+谱名」或「常用名」== `UserLocalName`。
+
+### 3.3 家支可编集合 `GetAmendablePersonIds`
+口径（`PackPersonIdByChildrenMaps`）：本人 + 全部后代 + 配偶 + **向上最多两代（父、祖）及每代配偶**。小系导出/导入的锚点闸门用它。
+
+---
+
+## 4. 加密体系（两套，互不混用）
+
+### 4.1 `.fm` 交换文件信封（前端，用户密码派生）
+`src/utils/familyTreeExchange.ts`
+- 方案 A / D2：`密钥 = PBKDF2(用户密码 ⊕ 系统因子, 随机盐, 10000 轮, SHA256, 512bit)`；
+- 前 256bit → AES-256-CBC（Pkcs7），后 256bit → HMAC-SHA256，**encrypt-then-MAC**；
+- MAC 覆盖 `salt+iv+ct`，先验完整性再解密（无 padding oracle）；
+- 盐与 IV 每次随机（同谱同密码两次导出密文不同）；
+- 系统因子 `YouJiaLa.FamilyTree.Exchange.v1` 由后端 `GetExchangeFactor` 下发（不进前端包体）；
+- 信封 JSON：`{V:"FM1", Iter, Salt, Iv, Ct, Mac}`（均 base64）；
+- **失败不区分**"密码错/文件坏"，统一报 `exchange-file-bad`（不给攻击者预言机）。
+
+### 4.2 `BK` 备份文件密文（后端，服务端密钥）
+`CloudBuilder.Master.Service/FamilyTreeUtility/FamilyTreeExchangePolicy.cs`
+- 备份含权限行（账号名隐私），整份用 `EncryptHelper.AesEncrypt`（AES-128-CBC，内置 Key/IV）落盘；
+- 文本前缀魔数 `ENC:` 区分新老格式：**无此前缀=旧明文备份，直接透传**（向后兼容）；
+- 读取端 `DecryptBackup` / `ReadBackupOwner` / `RestoreBackup` 均先解密再解析；
+- ⚠️ 编译陷阱：`DecryptBackup` 须写 `EncryptHelper.AesDecrpt(...)` 静态调用，`.AesDecrpt()` 零参扩展名不匹配（`EncryptHelper` 只有 `(string)` 静态与 `(string,string,string)` 扩展两个重载）。
+- 因备份由后端自动生成、后端自回读（不经前端密码），故用服务端密钥而非 `.fm` 的用户密码派生方案。
+
+---
+
+## 5. 文件命名与目录
+
+| 类型 | 规则 | 校验正则 |
+|---|---|---|
+| 全系 `.fm` | `A{treeId}_{yyyyMMddHHmmss}.fm` | `^AT\w+_\d{14}\.fm$` |
+| 小系 `.fm` | `P{treeId}-{personId}_{ts}.fm` | `^PT\w+-P\w+_\d{14}\.fm$` |
+| 备份 BK | `BK{treeId}_{ts}.json` | `^BKT\w+_\d{14}\.json$` |
+
+- 目录：与身份证/头像同根（`FileServiceSettings:UploadFileDirectory`），挂 `FamilyTree/` 与 `FamilyTree/Backup/` 子目录，不新增配置节。
+- `IsValidFileName` / `IsValidBackupFileName` 拒绝任何目录成分（防 `../` 路径穿越），且 `Path.GetFileName` 双检。
+- **TreeId 来源**：交换/备份文件的 TreeId 从**文件名**反解析（`ParseFileName` / `ParseBackupFileName`），不依赖 JSON 内容或文件系统时间。
+
+---
+
+## 6. 导出链路
+
+后端 `ExportFamilyTree`（`FamilyTreeService.auto.cs` L818）：
+1. D8 闸门：全系仅管理员；小系管理员任意锚点、成员仅限自家支锚点。
+2. 全量取本谱 persons/spouseMaps/childrenMaps（关系按 `Orderby` 排序）。
+3. 小系子集：`PackPersonIdByChildrenMaps`（管理员用传入锚点）或 `GetAmendablePersonIds`（成员）展开后过滤，关系行**两端都须在 ids 内**。
+4. 审计 `OUT`，返回明文 `FamilyTreeExchangeData`（含 `FamilyTree` 谱信息）。
+
+前端 `exportTree`（`useFamilyTreeExchange.ts` L91）：
+`GetExchangeFactor` → `ExportFamilyTree` → `encryptEnvelope` → **设备落盘**（`saveFileBytes`）和/或 **上传交换目录**（`SaveExchangeFile`，base64 通道，限 1B~50MB）。
+
+---
+
+## 7. 导入链路
+
+### 7.1 全系整谱替换 `ImportFamilyTree` → `ReplaceTreeCore`
+`ReplaceTreeCore`（L989，`ImportFamilyTree` 与 `RestoreBackup` 共用，调用方 `@UnitOfWork` 已开事务）：
+
+```
+0) 完整性闸（宁拒不静默丢行，保落库与文件 100% 相同）
+   - PersonId 为空或重复 → 拒
+   - spouse/children 关系行两端不在文件内 → 拒
+1) BackupTree 自动备份现谱（整谱快照，先落盘）
+2) 清空当前谱：关系先行（spouse→children）、人后删
+3) 编号策略 + SkipAudit
+   - sameTree：idMap[p]=原号（不耗号段）、保留 BindUserId/IsBindUser、回放文件 Created 印章
+     → 插入段临时 dbCtx.SkipAudit=true（绕开框架对 Added 强盖 Created*），finally 复位
+   - 跨谱：generator.GetNo 重发 PersonId + 清绑定 + 框架盖当次 Created
+4) 关系行双端 remap（完整性闸保证全量命中）；同谱 Updated 补当次痕迹
+5) 谱信息字段以数据为准（TreeName/Brief/Cover/PublicIndc；AncestorPersonId 经 idMap remap；主键 TreeId 保持目标谱）
+6) 权限闭环（见 §8）→ 审计
+```
+- 全系导入仅管理员（D4）、仅 ALL scope、要求 `data.FamilyTree` 非空。
+- 审计动码：`IN`=外部文件导入 / `RESTORE`=备份回滚回放；message 含 `sameTree=1/0`、`backup=`、权限统计。
+
+### 7.2 小系锚点整家替换 `ImportSubTree`（方案 C）
+`ImportSubTree`（L1147）：
+
+1. P6 权限闸：管理员任意锚点；成员限自家支锚点。
+2. P2/P3 同一人验证：文件锚点与所选族人 **姓+谱名**全量一致才放行。
+3. BackupTree 整谱备份（P7，回滚点）。
+4. **1.5 方案 C**：锚点本人资料覆盖为文件锚点（`Clone`+`CopyFrom`），回保目标侧 `PersonId/TreeId/FatherId/BindUserId/IsBindUser/Created*`（防脱谱、防绑定劫持）。
+5. **删除集**：`BranchClosure(anchor)` 后代闭包 + 锚点配偶"纯入配"（`delSpousePersons`：无绑定、无其它婚配/血缘、非始祖才随删重插），涉及锚点的 spouse 行全删。
+6. **插入集**：文件侧同口径闭包（上溯段不插，P4）+ 文件锚点配偶（与目标侧删除对称）；文件锚点映射到保留的目标锚点，其余 `generator` 重编号、清绑定。
+7. 关系行双端 remap，引用集合外人的行丢弃防悬挂。
+8. 权限行迁移 `MigrateSubTreePermissions`（§8）。
+9. 审计 `MERGE`：`deleted/inserted/anchor=1/anchorSpouse=N/perm moved;dropped`。返回 `insSet.Count + 1`（含锚点本人）。
+
+**BranchClosure**（L1127）：后代 + 配偶迭代到不动点（防回头婚配漏拉），**锚点本人不进集合**；目标侧删除集与文件侧插入集共用此口径保证删/插对称。
+
+### 7.3 前端解密校验 `decryptPayload` / `readAndDecrypt`
+`useFamilyTreeExchange.ts` L155
+- 服务器回读（`ReadExchangeFile` base64）与本地选文件两路共用解密；
+- `expectScope=null`（本地跨谱嫁接）自动采纳文件自身范围；指定模式则文件范围必须同构；
+- 小系无 `AnchorPersonId`（旧文件）→ `exchange-legacy-sub`；缺 Persons/FamilyTree → `exchange-file-bad`；
+- payload 留前端内存，二次确认后原样交 `importTree` / `importSubTree`。
+
+---
+
+## 8. 权限行三方法（绝对闭环核心）
+
+| 场景 | 方法 | 行为 |
+|---|---|---|
+| 小系导入 | `MigrateSubTreePermissions`（L386） | 被删后代/入配配偶的权限行经 `idMap`（文件旧号→新号）命中则 `RebindFamilyTreePermission` 删旧插新换绑；命中不了（跨谱/已删）删悬挂；**管理员行、PersonId 空行不动** |
+| 跨谱全系导入 | `CleanDanglingPermissions`（L415） | 删本谱引用已删旧号的成员行（`ManagerIndc!=YES && PersonId!="" && 不在存活集`）；管理员/空号保留 |
+| 备份还原 | `RestorePermissions`（L430） | 本谱权限行整体删除→按快照重建，`PersonId` 经 idMap remap（还原恒同谱→原样落回）；仅 `data.Permissions.Length>0` 触发（`.fm` 无快照不会走到） |
+
+- 复合主键 `(PersonId,TreeId,UserName)` 改主键 EF 不可靠 → 统一走"删旧插新"（`RebindFamilyTreePermission` 先例）。
+- 建谱时管理员行 `PersonId` 指向始祖且非空 → 清理/迁移必须 `ManagerIndc` 排除，防误杀。
+
+`ReplaceTreeCore` 权限分支优先级：`有快照→Restore` ＞ `跨谱→Clean` ＞ `同谱→不碰`。
+
+---
+
+## 9. 备份与还原链路
+
+### 9.1 备份 `BackupTree`（L960）
+- 三条破坏性路径**动手前都先整谱备份**（全系导入 / 小系导入 / 还原），备份范围**恒为整谱**（即使只替换一根枝）；
+- 采集 persons/spouse/children + **本谱权限行**；
+- **无 try-catch**：磁盘满/写失败直接抛出 → 整个事务回滚 = "备份落盘不成功，删除就不执行"；
+- 整份 `EncryptBackup`（`ENC:` 密文）落 `Backup/` 子目录。
+
+### 9.2 备份列表 `ListBackups`（R1 收紧）（L1288）
+- 成员只见自己创建的（`ReadBackupOwner` 解密取 `ExportedBy`），管理员不限；
+- R5 保留窗口一年；按备份时刻降序；解析不出归属的旧文件对成员隐藏。
+
+### 9.3 还原 `RestoreBackup`（L1341）
+- R1 成员也可还原（走 IsMember）；R6 文件名严格 BK + 谱号==目标谱（防跨谱灌数据）+ 超窗口拒；
+- 解密反序列化（`PropertyNameCaseInsensitive`）→ 内容完整性校验 → R1 归属校验（成员只能还原自己的）；
+- 复用 `ReplaceTreeCore(..., "RESTORE")`：**还原前先把当前谱再备份一份**（链式可回退），同谱编号/绑定原样回放、权限随快照闭环。
+
+---
+
+## 10. 同谱 / 跨谱 语义矩阵
+
+| 场景 | 编号 | 绑定 | Created 印章 | 权限行 | 完整性闸 |
+|---|---|---|---|---|---|
+| 同谱全系导入 / 备份还原 | 保留原号 | 保留 | 回放文件值（SkipAudit） | 无损 / 快照回放 | 拒悬挂/重复 |
+| 跨谱全系嫁接 | 重发新号 | 清空 | 当次操作人/时间 | Clean 清悬挂 | 拒悬挂/重复 |
+| 小系导入 | 后代重编号 | 锚点保留 / 后代清 | 当次 | Migrate 迁移 | — |
+
+同谱判定：`data.FamilyTree.TreeId == targetTreeId`（还原与服务器同谱文件导入恒同谱；跨谱全系只能来自本地上传）。
+
+---
+
+## 11. 前端 UI / 交互 / 文案
+
+入口在 `components/family-tree-home/family-tree-home.vue`：
+- 导入/导出入口 `v-if="canExport"`（`canExport = IsManager || IsMember`），**成员也有导入入口**（不再仅管理员）；
+- `openExchangeImport`：非管理员默认 scope=`SUB`，`ALL` 选项 chip `v-if IsManager`；
+- 二次确认按 **同谱/跨谱** 区分风险文案：同谱文件（含本谱服务器文件）`exchangeImportConfirmSame`（保留编号/绑定，数据 100% 恢复）；跨谱 `exchangeImportConfirm`（重编号+解绑需重审批）；
+- 小系确认 `exchangeImportConfirmSub` 极简版："将替换当前族员「{anchor}」的全部，自动备份可回滚。确定继续吗?"；
+- 还原 `exchangeRestoreConfirm` / 警告 `exchangeRestoreWarn`（恒同谱，保留编号绑定 100% 回放）；
+- **导入/还原弹层列表**用 `<scroll-view scroll-y class="ft-exchange__list">`（`max-height:42vh` + H5 可见 6px 细滚动条），保证密码框/红色警告/按钮永不被长列表挤出。
+
+i18n：`src/locale/lang/zh-CN.json` 与 `en-US.json` 双语同步。
+
+---
+
+## 12. 审计日志 `family_tree_file_log`
+
+`WriteExchangeLog`（L1378）：失败不阻断主流程（`try-catch` 吞并 Console 打印）。
+
+| Action | 来源 | Message 关键字 |
+|---|---|---|
+| `OUT` | 导出 | 文件名、人数 |
+| `IN` | 全系导入 | `backup; sameTree; permDropped` |
+| `MERGE` | 小系导入 | `backup; deleted; inserted; anchor=1; anchorSpouse=N; perm moved;dropped` |
+| `RESTORE` | 备份还原 | `backup; sameTree; permRestored` |
+
+---
+
+## 13. 后端接口清单
+
+| 方法 | 权限 | 入参绑定 | 说明 |
+|---|---|---|---|
+| `GetExchangeFactor` | Find | — | 下发系统因子 |
+| `ExportFamilyTree` | Find | `(treeId,scope,anchorPersonId)` | 返回明文 payload |
+| `SaveExchangeFile` | Find | `(fileName,contentBase64)` | 上传交换目录 |
+| `ListExchangeFiles` | Find | `?treeId=`（query） | 列 `.fm`，时间降序 |
+| `ReadExchangeFile` | Find | `?fileName=`（query） | base64 回读 |
+| `ImportFamilyTree` | Update+事务 | body `{targetTreeId,data}` | 整谱替换（仅管理员/ALL） |
+| `ImportSubTree` | Update+事务 | body `{targetTreeId,anchorPersonId,data}` | 小系替换 |
+| `ListBackups` | Find | `?treeId=`（query） | 列 BK（按归属过滤） |
+| `RestoreBackup` | Update+事务 | body `{targetTreeId,backupFileName}` | 备份还原 |
+
+> 简单类型入参走 query string，复杂对象走 JSON body；业务异常统一 HTTP 200 + `ValidatedException` 文本。
+
+---
+
+## 14. 构建链与部署（易踩坑）
+
+- `CloudBuilder.Web.Entry.csproj` 对子项目是 `<Reference>+<HintPath>` 而非 `<ProjectReference>`：**必须先 `dotnet build` 子项目 csproj（更新其 bin dll），再 build Entry**，否则 Entry 输出目录仍是旧 dll，改动不生效。
+- 改了 `CloudBuilder.Master`（如 DTO）→ 顺序：`Master → Master.Service → Web.Entry`。
+- 构建前需释放文件锁：VS 调试进程（端口 5235）与 PostBuild 的 `CodeGenerator.exe` 会锁 dll；构建后核对 `bin\Debug\net8.0\CloudBuilder.Master.Service.dll` 时间戳。
+- `Controller` 与前端 `service/*.ts` 由 CodeGenerator 自动生成，**不可手改**；手写业务逻辑放 `*.auto.cs`（允许）。
+
+---
+
+## 15. 自动化测试矩阵（已实测通过）
+
+| 用例 | 断言要点 | 结果 |
+|---|---|---|
+| 同谱全系 round-trip | 编号/绑定/字段/关系全等，Created 印章回放 | 12/12 PASS |
+| 还原旧明文 BK | 向后兼容透传不炸，生成新密文 BK | PASS |
+| 新 BK 密文 | `ENC:` 前缀 + AES-128-CBC 解密回明文 | PASS |
+| 权限快照 | 密文含 `Permissions`，条数==库内权限行；含 UserName/ManagerIndc | PASS |
+| 小系权限迁移 | 后代绑定随人换绑新号；管理员/空号行不动 | 14/14 PASS |
+| 跨谱清理悬挂 | 引用已删旧号的成员行删除，管理员行保留 | PASS |
+| 完整性负闸 | 空/重复编号、悬挂关系行拒绝 | PASS |
+
+测试脚本要点（见记忆《CloudBuilder 后端自动化测试登录与接口调用要点》）：
+- `POST /Auth/Login` 体字段 `UserMobile` + `RsaUserPassword`（RSA: `guid+md5(pwd)`）+ `Guid`，`Culture` 必须**小写 `zh-cn`**（传 `zh-CN` 会让 `ComposeMessage` 抛空 Message 异常）；
+- token 在 `Token.AccessToken`；
+- 结果落盘 `fs.writeFileSync` + Read 工具直读（PowerShell stdout 滞后不可靠）。
+
+---
+
+## 16. 已知边界与遗留
+
+- **备份密钥**：`BK` 用 `EncryptHelper` 内置固定 Key/IV（代码硬编码于 `CloudBuilder.Core`）；如需更强隔离可改走配置密钥。
+- **father_id 字段 vs children_map 行一致性**：曾发现陈国国 `father_id` 为 null 但 children_map 存在父行（保存链路潜在不一致），属独立 bug，未在本闭环处理。
+- **JWT 无状态窗口**：解绑/重绑在 token 有效期内对已登录会话的影响为窗口期问题。
+- `.fm` 交换文件的 `Permissions` 恒空：恶意文件携带权限行会被忽略（不回放），符合防劫持设计。
+
+---
+
+*文档生成于 2026-10-20，对应代码版本：Entry 输出 `CloudBuilder.Master.Service.dll` 时间戳 09:14:41（含同谱完整性 + 权限迁移/清理 + 备份权限快照 + 密文落盘全部改动）。*
diff --git a/uniapp/youjiala/src/md/family-tree-permission.md b/uniapp/youjiala/src/md/family-tree-permission.md
new file mode 100644
index 0000000..5d8efaf
--- /dev/null
+++ b/uniapp/youjiala/src/md/family-tree-permission.md
@@ -0,0 +1,128 @@
+# 族谱权限体系（完整流程）
+
+> 定稿 2026-10（v5）：三档角色 + 中文姓名同名绑定 + 家支两代上溯 + 逐目标人可编集合。前后端口径一致，后端为最终裁决。
+
+## 一、三档角色定义
+
+| 角色 | 判定条件 | 能力范围 |
+|---|---|---|
+| **普通用户** | 无生效权限行（或仅有待审行） | 只读：查看公开信息、小/全系图；「申请管理」可用；编辑、编辑资料、顶部公开开关、成员/权限选项卡全部不可见 |
+| **成员** | 有 `UserName=自己 且 ValidIndc=Y` 的权限行（`IsMember=true`） | 可见成员选项卡；可编辑**以自己绑定族员为锚点的家支主线**（见第三节）；权限选项卡、谱级操作（编辑资料/挂始祖/公开开关/删谱）不可见且后端拦截 |
+| **管理员** | 权限行 `ManagerIndc=Y 且 ValidIndc=Y`（`IsManager=true`） | 全部权限：审批/任免、族谱本体修改、任意族员编辑删除（`HasPermission` 内短路为真） |
+
+建谱人（Insert 时 CreatedBy）自动成为管理员。
+
+后端 `FamilyTreeData` 恒定下发三个标志，前端一切显隐只认它们：
+
+- `IsManager`：是否管理员（谱级操作闸门）；
+- `IsMember`：是否已生效成员（成员 tab 闸门）；
+- `IsCanAmend`：**当前锚点族员**是否可编（随「选择族员」切换而变），个人编辑/关系维护入口闸门。
+
+## 二、完整流程：从陌生人到成员
+
+```
+注册登录 → 浏览族谱（普通用户档）
+    │
+    ▼
+[申请管理]（快捷区 / 权限tab常驻卡 / 底部条，三档均可见入口）
+    │  后端 RequestFamilyTreePermission：
+    │  插入权限行 TreeId+UserName，PersonId=""（不绑任何族员！
+    │  旧版把申请锚点——往往是始祖——写入，导致成员误得大支系，已修）
+    │  查重按 TreeId+UserName（一人一谱一行）
+    ▼
+管理员权限tab「待审批」看到申请行（视图 LEFT JOIN 保证空绑定行可见）
+    │
+    ▼
+[通过]（成员档） 后端 ApproveFamilyTreePermission：
+    │  ValidIndc=Y；不绑始祖；
+    │  自动绑定判定：取申请人中文姓名 user_local_name，全谱内
+    │  「姓+谱名」组合或常用名与之相同且唯一 → 自动绑该族员；
+    │  否则 PersonId 留空，由用户自行绑定
+    │
+    ├─或→ [设为管理员]：ManagerIndc=Y，不做绑定（管理员全谱短路可编）
+    │
+    ▼
+未自动绑定的成员 → [绑定账号]（成员tab「当前族员」卡第4钮）
+    │  先用「族员搜索」把当前族员切到目标，再点绑定
+    │  后端 BindSelfPerson(treeId, personId)：
+    │  ① 校验自己有 ValidIndc=Y 行，否则「您还未通过审批，不能绑定账号」
+    │  ② 校验该族员「姓+谱名」组合或常用名 == 登录中文姓名（user_local_name），
+    │     否则「只能绑定与您的中文姓名同名的族员」（与审批自动绑定同一把尺；
+    │     登录账号 user_name 只是标识，不参与名字比较）
+    │  ③ 换绑：PersonId 属复合主键 (PersonId,TreeId,UserName)，
+    │     EF 分离实体改主键列不可靠 → 删旧行插新行（RebindFamilyTreePermission）
+    │  ④ 返回 FindByCurrentPerson(treeId, personId)，锚点即切到刚绑族员
+    │
+    ▼
+[解除绑定]（同一按钮位：当前族员==自己绑定时显「解除绑定」）
+    │  后端 UnbindSelfPerson(treeId)：自己 Valid=Y 行 Rebind 到 PersonId=""，
+    │  锚点退回始祖；解绑后可重新绑定其他同名族员
+    ▼
+成员生效：家支主线可编（第三节）
+```
+
+驳回（Reject）/移出：按 TreeId+UserName 定位删行（不再依赖 PersonId）。
+
+## 三、成员可编范围：家支主线（两代上溯口径）
+
+`FamilyTreePermissionHelper.HasPermission(treeId, personId)` 判定，
+支系集合由绑定族员（锚点）按下列规则展开：
+
+| 关系 | 是否在集合 | 说明 |
+|---|---|---|
+| 本人（绑定的族员） | ✅ | |
+| 全部后代（递归子链） | ✅ | 含后代的配偶 |
+| 父（第 1 代上溯）、祖父（第 2 代上溯） | ✅ | **最多两代**，含他们的配偶（母亲/祖母辈） |
+| 曾祖及更远直系祖先（含始祖） | ❌ | 超出两代即出支系 |
+| 本人配偶 | ✅ | |
+| 兄弟姐妹 | ❌ | 旁支 |
+| **伯/叔（父亲的兄弟）及其子女** | ❌ | 上溯只收直系父链+每代配偶，不从祖父向下展开 |
+
+环保护：`ps.Contains(father)` 即停，父链成环不会死循环。
+
+**逐目标人可编集合**：详情接口同时下发 `CanAmendPersonIds`（`GetAmendablePersonIds`，与 `HasPermission` 完全同源的家支集合）——因为 `IsCanAmend` 是锚点级单一布尔，盖不住关系行里的旁支（如锚点儿子视角下，父亲的另一子“test叔”是旁支不可编）；管理员不限量不下发，前端按 `IsManager` 短路。
+
+## 四、后端守卫矩阵（防绕过前端的直接 API 调用）
+
+| 操作 | 端点 | 守卫 |
+|---|---|---|
+| 改族员档案 | `FamilyPerson/Update` | `HasPermission(TreeId, PersonId)`（支系内） |
+| 新增族员 | `FamilyPerson/Insert` | **`IsManager \|\| IsMember`**（新人无既有 PersonId 可查支系，最小闸门防普通用户直接调 API 污染族谱；挂接关系仍受 Update 的 HasPermission 约束） |
+| 删族员 | `FamilyPerson/Delete` | 同上（曾完全无守卫，已补） |
+| 改谱字段（谱名/简介/公开开关/挂始祖） | `FamilyTree/Update` | **仅 `IsManager`**；成员支只准保存配偶/子女关系 map，谱字段不入库；成员改 `AncestorPersonId` 抛「您没有挂始祖权限」 |
+| 删谱 | `FamilyTree/Delete` | **仅 `IsManager`** |
+| 审批/任免/驳回 | `Approve/Reject...` | 管理员函数级权限 |
+| 申请 / 绑定账号 | `Request.../BindSelfPerson` | 函数级 Find + 业务校验（见第二节） |
+
+⚠️ 关键教训：**`HasPermission(始祖)` 不能当谱级闸门**——锚点贴近始祖的成员（如绑始祖、或始祖在其上溯两代内）它也为真。谱级操作必须走独立的 `IsManager(treeId)`。
+
+## 五、前端门控（family-tree-home.vue）
+
+| 入口/元素 | 显示条件 |
+|---|---|
+| 概览快捷区「编辑资料」、顶部公开开关、权限 tab、挂始祖链 | `IsManager` |
+| 成员 tab | `IsManager \|\| IsMember` |
+| 当前族员「修改」钮、始祖卡「编辑」链 | `IsCanAmend`（锚点级，随锚点变） |
+| 关系行（夫妻/子女）行尾铅笔与垃圾桶 | **逐目标人** `canAmendPerson(id)` = `IsManager \|\| CanAmendPersonIds.includes(id)`；旁支（如兄弟）不显示 |
+| 关系行 ↑↓ 调序、卡头「新增配偶/添加子女」 | 锚点级 `IsCanAmend`（属锚点关系列表维护） |
+| 「申请管理」 | 常驻（管理员点击只提示不重复发） |
+| 「绑定账号 / 解除绑定」（成员tab当前族员卡，同一按钮位互斥切换） | `!IsManager`；当前族员 PersonId == `SelfBindPersonId` 时显「解除绑定」，否则显「绑定账号」 |
+| 不可编时弹层前置拦截 | `openQuickCreate` 按锚点级 `IsCanAmend`、`openEditPerson` 按目标人级 `canAmendPerson(id)`：不可编直接 toast「您没有该族谱的修改权限」不弹层（防弹完才报错，也防弹层内非公开族人信息泄漏） |
+| 不可见 tab 兜底 | `load()` 内：权限 tab 非管理员踢回概览；成员 tab 非成员/管理员踢回概览 |
+
+## 六、数据与视图要点
+
+- 权限表 `family_tree_permission`，复合主键 **(person_id, tree_id, user_name)**；`person_id=""` 表示已过审/待审但未绑定。
+- 列表下发走数据库视图 `family_tree_permission_user_view`：对 `family_person` 必须 **LEFT JOIN**（INNER JOIN 会把未绑定行整联丢弃，导致管理员看不到待审申请——已修）；对 `security_user` 保持 INNER。
+- 非管理员查询时后端过滤 `FamilyTreePermissions` 只留自己的待审行；`IsMember` 必须在过滤**之前**计算。
+- 视图定义不在仓库中，只存在于 MySQL；改动需 `CREATE OR REPLACE VIEW`。
+
+## 七、已验证结论（脚本实测）
+
+- 001 管理员：三标志全 true，任意编辑 ✅
+- 002 普通用户：三标志全 false，人员/谱级写操作全部「您没有修改权限」 ✅
+- 003 成员（绑 test仲，始祖为其父）：改伯系后代/旁支被拒、改自己放行、翻公开开关不入库、删谱/删伯系被拒 ✅
+- 两代口径：003 绑四世 test我 时，父/祖可编、曾祖（始祖）出支系 `IsCanAmend=false`、伯叔不可编 ✅
+- 同名绑定（中文姓名口径）：比较基准是 `security_user.user_local_name`；族员侧匹配 `(姓+谱名) == 中文姓名 || 常用名 == 中文姓名`；不同名拒绑、唯一同名审批时自动绑、自助绑定成功 ✅（003/陈国国 可绑 P0000019 陈+国国）
+- 逐目标人集合（003 绑陈国国 19 实测）：`CanAmendPersonIds = {19本人, 23/24后代, 16父, 17/20父辈配偶, 14/15祖始祖层}` ✅；test叔（旁支）不在集合、行尾无编辑/删除钮；陈国国自己的行可编 ✅
+- 构建链教训：`Master.Service`/`Web.Entry` 走 HintPath dll 引用且用 `-o` 临时目录验证编译会漏刷 `bin\Debug`，导致“新 Master + 旧 Service”组合使新字段恒为空数组；交付前必须按 Master → Master.Service → Web.Entry 顺序正常构建（不带 -o）再重启
diff --git a/uniapp/youjiala/src/service/master/familyTreeService.ts b/uniapp/youjiala/src/service/master/familyTreeService.ts
index 2f9ad67..108f3b6 100644
--- a/uniapp/youjiala/src/service/master/familyTreeService.ts
+++ b/uniapp/youjiala/src/service/master/familyTreeService.ts
@@ -3,6 +3,8 @@ import { request } from "@/utils/request";
         import type { FamilyTreeData } from "@/data/auto/familyTreeData";
         import type { FamilyTreeSearchCriteria } from "@/data/auto/familyTreeSearchCriteria";
         import type { FamilyTreeResultData } from "@/data/auto/familyTreeResultData";
+        import type { FamilyTreeExchangeData } from "@/data/auto/familyTreeExchangeData";
+        import type { FamilyTreeExchangeFileInfo } from "@/data/auto/familyTreeExchangeFileInfo";
         
 class FamilyTreeService{
 
@@ -136,6 +138,95 @@ class FamilyTreeService{
                         )
                         };
                         
+                        async GetExchangeFactor() {
+                        return request<string>(
+                        {
+                        url: "/FamilyTree/GetExchangeFactor",
+                        method: "post",
+                        }
+                        )
+                        };
+                        
+                        async ExportFamilyTree(data: any) {
+                        return request<FamilyTreeExchangeData>(
+                                {
+                                url: "/FamilyTree/ExportFamilyTree",
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async SaveExchangeFile(data: any) {
+                        return request<string>(
+                                {
+                                url: "/FamilyTree/SaveExchangeFile",
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async ListExchangeFiles(data: string) {
+                        return request<FamilyTreeExchangeFileInfo[]>(
+                                {
+                                url: "/FamilyTree/ListExchangeFiles?treeId="+data,
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async ReadExchangeFile(data: string) {
+                        return request<string>(
+                                {
+                                url: "/FamilyTree/ReadExchangeFile?fileName="+data,
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async ImportFamilyTree(data: any) {
+                        return request<number>(
+                                {
+                                url: "/FamilyTree/ImportFamilyTree",
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async ImportSubTree(data: any) {
+                        return request<number>(
+                                {
+                                url: "/FamilyTree/ImportSubTree",
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async ListBackups(data: string) {
+                        return request<FamilyTreeExchangeFileInfo[]>(
+                                {
+                                url: "/FamilyTree/ListBackups?treeId="+data,
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
+                        async RestoreBackup(data: any) {
+                        return request<number>(
+                                {
+                                url: "/FamilyTree/RestoreBackup",
+                                method: "post",
+                                data,
+                                }
+                        )
+                        };
+                        
 }
 
 const familyTreeService= new FamilyTreeService();
diff --git a/uniapp/youjiala/src/utils/familyTreeExchange.ts b/uniapp/youjiala/src/utils/familyTreeExchange.ts
new file mode 100644
index 0000000..307629f
--- /dev/null
+++ b/uniapp/youjiala/src/utils/familyTreeExchange.ts
@@ -0,0 +1,153 @@
+/**
+ * 族谱交换文件（.fm）信封加解密 —— D2 拍板的方案 A：
+ * 密钥 = PBKDF2(用户密码 ⊕ 系统因子, 随机盐, 10000 轮, SHA256, 512bit)，
+ * 前 256bit 做 AES-256-CBC（Pkcs7 填充），后 256bit 做 HMAC-SHA256（encrypt-then-MAC）。
+ * 因子由后端 GetExchangeFactor 下发（不进前端包体），密码只当密钥材料、后端不校验，
+ * 所以解不开统一报「密码错误或文件损坏」，不区分两种失败（避免给攻击者预言机）。
+ *
+ * 分工口径：后端只产/吃明文 payload（权限闸裁剪后的 FamilyTreeExchangeData JSON），
+ * 加解密全在本模块；.fm 文件本体是信封 JSON 文本（纯文本便于 base64 通道中转）。
+ * crypto-js 纯 JS 实现，H5 / App webview 通吃（D5 范围）。
+ */
+import CryptoJS from "crypto-js";
+
+/** 字节串类型别名（@types 里真身在 CryptoJS.lib 命名空间下） */
+type WordArray = CryptoJS.lib.WordArray;
+
+/** 信封格式版本（改动加密参数时要升版本号，兼容检查用） */
+const ENVELOPE_VERSION = "FM1";
+/** PBKDF2 轮数：设备端可承受上限附近，导入导出低频操作可以慢 */
+const PBKDF2_ITERATIONS = 10000;
+/** 派生 512bit：拆 256bit 加密钥 + 256bit MAC 钥（crypto-js keySize 单位是 32bit word） */
+const DERIVE_KEY_SIZE_WORDS = 16;
+
+/** .fm 信封 JSON 的字段形态（对外只暴露这一个结构） */
+interface ExchangeEnvelope {
+  V: string;
+  Iter: number;
+  Salt: string;
+  Iv: string;
+  Ct: string;
+  Mac: string;
+}
+
+/** 口令+因子拼成派生输入：分隔符防止「密码尾+因子头」相同拼接歧义 */
+function passphraseOf(password: string, factor: string): string {
+  return `${password}\u0001${factor}`;
+}
+
+/** PBKDF2 派生并拆双钥（前 8 word 加密 / 后 8 word 认证；@types 未声明 slice，按 words 自建） */
+function deriveKeys(password: string, factor: string, salt: WordArray) {
+  const dk = CryptoJS.PBKDF2(passphraseOf(password, factor), salt, {
+    keySize: DERIVE_KEY_SIZE_WORDS,
+    iterations: PBKDF2_ITERATIONS,
+    hasher: CryptoJS.algo.SHA256,
+  });
+  const sliceWords = (wa: WordArray, start: number, count: number): WordArray =>
+    CryptoJS.lib.WordArray.create(
+      wa.words.slice(start, start + count),
+      count * 4,
+    );
+  return { encKey: sliceWords(dk, 0, 8), macKey: sliceWords(dk, 8, 8) };
+}
+
+/** MAC 覆盖 salt+iv+ct（encrypt-then-MAC：先验完整性再解密，padding oracle 面无门） */
+function computeMac(
+  macKey: WordArray,
+  salt: WordArray,
+  iv: WordArray,
+  ct: WordArray,
+): WordArray {
+  return CryptoJS.HmacSHA256(salt.clone().concat(iv).concat(ct), macKey);
+}
+
+/**
+ * 明文 JSON 文本 → .fm 信封文本。
+ * 盐与 IV 每次随机：同一谱同一密码两次导出密文也不同，不泄露任何相等关系。
+ */
+export function encryptEnvelope(
+  plainText: string,
+  password: string,
+  factor: string,
+): string {
+  const salt = CryptoJS.lib.WordArray.random(16);
+  const iv = CryptoJS.lib.WordArray.random(16);
+  const { encKey, macKey } = deriveKeys(password, factor, salt);
+  const encrypted = CryptoJS.AES.encrypt(
+    CryptoJS.enc.Utf8.parse(plainText),
+    encKey,
+    {
+      iv,
+      mode: CryptoJS.mode.CBC,
+      padding: CryptoJS.pad.Pkcs7,
+    },
+  );
+  const ct = encrypted.ciphertext;
+  const envelope: ExchangeEnvelope = {
+    V: ENVELOPE_VERSION,
+    Iter: PBKDF2_ITERATIONS,
+    Salt: CryptoJS.enc.Base64.stringify(salt),
+    Iv: CryptoJS.enc.Base64.stringify(iv),
+    Ct: CryptoJS.enc.Base64.stringify(ct),
+    Mac: CryptoJS.enc.Base64.stringify(computeMac(macKey, salt, iv, ct)),
+  };
+  return JSON.stringify(envelope);
+}
+
+/**
+ * .fm 信封文本 → 明文 JSON 文本。
+ * 任何失败（版本不符/MAC 不对/解不开）都抛同款错误，由调用方转友好提示；
+ * 不做「密码错」与「文件坏」的区分提示，见文件头注释。
+ */
+export function decryptEnvelope(
+  fileText: string,
+  password: string,
+  factor: string,
+): string {
+  let envelope: ExchangeEnvelope;
+  try {
+    envelope = JSON.parse(fileText) as ExchangeEnvelope;
+  } catch {
+    throw new Error("exchange-file-bad");
+  }
+  if (
+    !envelope ||
+    envelope.V !== ENVELOPE_VERSION ||
+    !envelope.Salt ||
+    !envelope.Iv ||
+    !envelope.Ct ||
+    !envelope.Mac
+  ) {
+    throw new Error("exchange-file-bad");
+  }
+  const salt = CryptoJS.enc.Base64.parse(envelope.Salt);
+  const iv = CryptoJS.enc.Base64.parse(envelope.Iv);
+  const ct = CryptoJS.enc.Base64.parse(envelope.Ct);
+  const { encKey, macKey } = deriveKeys(password, factor, salt);
+  const expectMac = CryptoJS.enc.Base64.stringify(
+    computeMac(macKey, salt, iv, ct),
+  );
+  if (expectMac !== envelope.Mac) {
+    throw new Error("exchange-file-bad");
+  }
+  const decrypted = CryptoJS.AES.decrypt(
+    CryptoJS.lib.CipherParams.create({ ciphertext: ct }),
+    encKey,
+    { iv, mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 },
+  );
+  const plainText = decrypted.toString(CryptoJS.enc.Utf8);
+  if (!plainText) {
+    throw new Error("exchange-file-bad");
+  }
+  return plainText;
+}
+
+/** UTF-8 字符串 → ArrayBuffer（.fm 落盘/上传字节；H5 与 App webview 均有 TextEncoder） */
+export function stringToBytes(text: string): ArrayBuffer {
+  return new TextEncoder().encode(text).buffer as ArrayBuffer;
+}
+
+/** ArrayBuffer → UTF-8 字符串（读回 .fm 文本） */
+export function bytesToString(bytes: ArrayBuffer): string {
+  return new TextDecoder().decode(bytes);
+}