知识点确认，资料名称修改

src/main/java/com/project/task/domain/param/TaskParam.java

@@ -25,4 +25,6 @@ public class TaskParam extends BaseParam {
 
     private Boolean excludeEnd = Boolean.TRUE;
 
+    private Long classicCategoryId;
+
 }

src/main/java/com/project/task/domain/service/impl/SaveOrUpdateTaskDomainServiceImpl.java

@@ -112,7 +112,15 @@ public class SaveOrUpdateTaskDomainServiceImpl implements SaveOrUpdateTaskDomain
             dto.setBusinessId(subProductLine.getBusinessId());
         }
         // 经典模式：补全分类冗余字段
-        if (ExamModeEnum.CLASSIC.getValue().equals(dto.getExamMode()) && dto.getClassicCategoryId() != null) {
+        if (ExamModeEnum.CLASSIC.getValue().equals(dto.getExamMode())) {
+            // 如果前端没传 classicCategoryId，从套题组推导
+            if (dto.getClassicCategoryId() == null && dto.getClassicPaperSetId() != null) {
+                ClassicPaperSetEntity paperSet = classicPaperSetBaseService.getById(dto.getClassicPaperSetId());
+                if (paperSet != null) {
+                    dto.setClassicCategoryId(paperSet.getClassicCategoryId());
+                }
+            }
+            if (dto.getClassicCategoryId() != null) {
                 ClassicCategoryEntity category = classicCategoryBaseService.getById(dto.getClassicCategoryId());
                 if (category != null) {
                     dto.setClassicCategoryName(category.getName());
@@ -126,6 +134,7 @@ public class SaveOrUpdateTaskDomainServiceImpl implements SaveOrUpdateTaskDomain
                     }
                 }
             }
+        }
         // 保存
         TaskEntity saveEntity = dto.toEntity(TaskEntity::new);
         saveEntity.setParticipantNum(dto.getParticipantUserIdList().size());

src/main/java/com/project/task/domain/service/impl/SearchTaskDomainServiceImpl.java

@@ -83,6 +83,9 @@ public class SearchTaskDomainServiceImpl implements SearchTaskDomainService {
                 queryWrapper.in(TaskEntity::getSubLineId, productLineEntityList);
             }
         }
+        if (Objects.nonNull(param.getClassicCategoryId())) {
+            queryWrapper.eq(TaskEntity::getClassicCategoryId, param.getClassicCategoryId());
+        }
         // 考试状态过滤
         Date endOfToday = DateUtil.endOfDay(new Date());
         Date beginOfToday = DateUtil.beginOfDay(new Date());
@@ -99,11 +102,6 @@ public class SearchTaskDomainServiceImpl implements SearchTaskDomainService {
             queryWrapper.le(TaskEntity::getStartTime, endOfToday);
             queryWrapper.ge(TaskEntity::getEndTime, beginOfToday);
         }
-        if (BooleanUtil.isTrue(param.getExcludeEnd())) {
-            // 强制要求：结束时间必须 >= 今天 00:00:00
-            // 这样，截止时间是今天的任务会被【保留】，只有昨天及以前截止的任务会被【排除】
-            queryWrapper.ge(TaskEntity::getEndTime, beginOfToday);
-        }
         queryWrapper.orderByDesc(TaskEntity::getId);
         IPage<TaskEntity> taskEntityPage = taskMapper.selectPage(
                 PageConverter.toMpPage(param),