diff --git a/src/main/java/com/gxwebsoft/approval/mapper/xml/ApprovalExportMapper.xml b/src/main/java/com/gxwebsoft/approval/mapper/xml/ApprovalExportMapper.xml
index 4fab8e7..4d2e824 100644
--- a/src/main/java/com/gxwebsoft/approval/mapper/xml/ApprovalExportMapper.xml
+++ b/src/main/java/com/gxwebsoft/approval/mapper/xml/ApprovalExportMapper.xml
@@ -18,7 +18,7 @@
                i.approve_time,
                i.archive_time,
                i.archivist_name,
-               i.title,
+               COALESCE(i.title, f.name, co.title) AS title,
                f.implement_org,
                f.fee,
                f.service_content,
diff --git a/src/main/java/com/gxwebsoft/approval/service/ApprovalExportService.java b/src/main/java/com/gxwebsoft/approval/service/ApprovalExportService.java
index 514a8cc..58c9875 100644
--- a/src/main/java/com/gxwebsoft/approval/service/ApprovalExportService.java
+++ b/src/main/java/com/gxwebsoft/approval/service/ApprovalExportService.java
@@ -48,6 +48,9 @@ public class ApprovalExportService {
   /** 单次导出上限，超过即要求缩小筛选范围。 */
   public static final int MAX_EXPORT_ROWS = 5000;
 
+  /** 批量取实例的 IN 分块大小。 */
+  private static final int INSTANCE_BATCH = 500;
+
   private static final DateTimeFormatter TIME_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
 
   /** 一期 16 列顺序保持不变，二期三列追加在末尾（ADR 0004 / 0003）。 */
@@ -187,14 +190,15 @@ public class ApprovalExportService {
       header.createCell(i).setCellValue(HEADERS[i]);
     }
     Map<Long, List<ApprovalNode>> nodeCache = new HashMap<>();
-    // 批量取实例，避免逐行往返（5000 行导出时 N+1 会拖到分钟级）
+    // 批量取实例（分块 IN），避免逐行往返；5000 行导出时 N+1 会拖到分钟级
     Map<Long, ApprovalInstance> instances = new HashMap<>();
     List<Long> instanceIds = new ArrayList<>();
     for (ApprovalExportRow row : rows) {
       instanceIds.add(row.getId());
     }
-    if (!instanceIds.isEmpty()) {
-      for (ApprovalInstance instance : instanceMapper.selectBatchIds(instanceIds)) {
+    for (int start = 0; start < instanceIds.size(); start += INSTANCE_BATCH) {
+      List<Long> chunk = instanceIds.subList(start, Math.min(start + INSTANCE_BATCH, instanceIds.size()));
+      for (ApprovalInstance instance : instanceMapper.selectBatchIds(chunk)) {
         instances.put(instance.getId(), instance);
       }
     }
@@ -212,7 +216,7 @@ public class ApprovalExportService {
       BigDecimal amountTotal = type == null ? null : amountCache.computeIfAbsent(cacheKey,
         k -> documentRegistry.lineAmountTotal(type, instance));
       String progress = instance == null ? "" : progressCache.computeIfAbsent(cacheKey,
-        k -> countersignProgress(instance));
+        k -> countersignProgress(instance, nodeCache));
       SXSSFRow dataRow = sheet.createRow(rowNum++);
       String[] values = toValues(row, nodeCache, lineCount, amountTotal, progress);
       for (int i = 0; i < values.length; i++) {
@@ -256,9 +260,14 @@ public class ApprovalExportService {
   /**
    * 会签进度列：仅会签节点有组时填「已签 N/M」，其余为空。
    */
-  private String countersignProgress(ApprovalInstance instance) {
-    List<ApprovalNode> nodes = flowService.parseNodes(instance.getDefinitionId());
+  private String countersignProgress(ApprovalInstance instance,
+                                     Map<Long, List<ApprovalNode>> nodeCache) {
+    List<ApprovalNode> nodes = nodeCache.computeIfAbsent(instance.getDefinitionId(),
+      flowService::parseNodes);
     List<String> parts = new ArrayList<>();
+    if (nodes.stream().noneMatch(node -> node.getGroups() != null && !node.getGroups().isEmpty())) {
+      return "";
+    }
     for (ApprovalNode node : nodes) {
       if (node.getGroups() == null || node.getGroups().isEmpty()) {
         continue;
diff --git a/src/main/java/com/gxwebsoft/approval/service/ApprovalInstanceService.java b/src/main/java/com/gxwebsoft/approval/service/ApprovalInstanceService.java
index ca1469f..cbeed15 100644
--- a/src/main/java/com/gxwebsoft/approval/service/ApprovalInstanceService.java
+++ b/src/main/java/com/gxwebsoft/approval/service/ApprovalInstanceService.java
@@ -133,6 +133,12 @@ public class ApprovalInstanceService {
     }
     // 协调单的受理部门在提交时快照到实例；外部流程的分管领导按受理部门解析
     ApprovalOrganizationVO acceptOrganization = preflightAcceptOrganization(type, instance);
+    // 预检要在内存里先带上受理部门快照：节点解析器（acceptOrgLeader/acceptOrgDeputy）读的是实例字段，
+    // 而快照在 doSubmit 才落库
+    if (acceptOrganization != null) {
+      instance.setAcceptOrgId(acceptOrganization.getOrganizationId());
+      instance.setAcceptOrgName(acceptOrganization.getOrganizationName());
+    }
     // 附件分类与逐节点逐组审批人解析（ADR 0003 / 0005）
     documentService.preflight(instance, flowService.parseNodes(instance.getDefinitionId()));