已修复：

实验课场地区块改为独立卡片布局，校区、教学楼和场地选择不再被嵌套表单挤压。
批量设置新增独立的“批量指定实验课场地”入口，包含场地性质、实验校区、教学楼和具体场地，并会联动筛选。
后端会保存并校验批量实验场地范围，避免跨校区/教学楼的无效设置。

src/Jiaowu.Api/Controllers/ScheduleSettingsController.cs

@@ -342,6 +342,7 @@ public sealed class ScheduleSettingsController(AppDbContext db, IAppCache cache)
         Building? building = null;
         List<Classroom> allowedRooms = [];
         var experimentRoomIds = request.AllowedExperimentClassroomIds?.Distinct().ToArray() ?? [];
+        Building? experimentBuilding = null;
         List<Classroom> allowedExperimentRooms = [];
         if (request.UpdateClassroomScope)
         {
@@ -381,12 +382,34 @@ public sealed class ScheduleSettingsController(AppDbContext db, IAppCache cache)
         }
         if (request.UpdateExperimentClassroomScope)
         {
+            if (request.ExperimentRequiredBuildingId.HasValue)
+            {
+                experimentBuilding = await db.Buildings.AsNoTracking()
+                    .FirstOrDefaultAsync(x => x.Id == request.ExperimentRequiredBuildingId && x.IsEnabled,
+                        cancellationToken);
+                if (experimentBuilding is null)
+                    return ValidationProblem("指定实验教学楼不存在或已停用。");
+                if (request.ExperimentRequiredCampusId.HasValue &&
+                    experimentBuilding.CampusId != request.ExperimentRequiredCampusId)
+                    return ValidationProblem("指定实验教学楼不属于所选实验校区。");
+            }
+            if (request.ExperimentRequiredCampusId.HasValue &&
+                !await db.Campuses.AnyAsync(x => x.Id == request.ExperimentRequiredCampusId && x.IsEnabled,
+                    cancellationToken))
+                return ValidationProblem("指定实验校区不存在或已停用。");
             allowedExperimentRooms = await db.Classrooms.AsNoTracking()
                 .Where(x => x.IsEnabled)
                 .WhereIn(experimentRoomIds, x => x.Id)
+                .Include(x => x.Building)
                 .ToListAsync(cancellationToken);
             if (allowedExperimentRooms.Count != experimentRoomIds.Length)
                 return ValidationProblem("部分指定实验场地不存在或已停用。");
+            if (experimentBuilding is not null &&
+                allowedExperimentRooms.Any(x => x.BuildingId != experimentBuilding.Id))
+                return ValidationProblem("指定实验场地必须位于所选实验教学楼。");
+            if (request.ExperimentRequiredCampusId.HasValue &&
+                allowedExperimentRooms.Any(x => x.Building!.CampusId != request.ExperimentRequiredCampusId))
+                return ValidationProblem("指定实验场地必须位于所选实验校区。");
         }
 
         var constraints = await db.TeachingTaskScheduleConstraints
@@ -457,6 +480,8 @@ public sealed class ScheduleSettingsController(AppDbContext db, IAppCache cache)
                 constraint.AllowedExperimentVenueNatures = request.AllowedExperimentVenueNatures.Value;
             if (task.Course?.PracticeHours > 0 && request.UpdateExperimentClassroomScope)
             {
+                constraint.ExperimentRequiredCampusId = request.ExperimentRequiredCampusId;
+                constraint.ExperimentRequiredBuildingId = request.ExperimentRequiredBuildingId;
                 db.TeachingTaskAllowedExperimentClassrooms.RemoveRange(
                     constraint.AllowedExperimentClassrooms);
                 constraint.AllowedExperimentClassrooms = allowedExperimentRooms.Select(room =>
@@ -548,4 +573,6 @@ public sealed record TeachingTaskScheduleConstraintBatchRequest(
     [Range(1, 30)] int? LatestPeriod,
     bool UpdateExperimentClassroomScope = false,
     TeachingVenueNature? AllowedExperimentVenueNatures = null,
-    IReadOnlyList<Guid>? AllowedExperimentClassroomIds = null);
+    IReadOnlyList<Guid>? AllowedExperimentClassroomIds = null,
+    Guid? ExperimentRequiredCampusId = null,
+    Guid? ExperimentRequiredBuildingId = null);

tests/Jiaowu.Api.Tests/ScheduleSettingsControllerTests.cs

@@ -85,13 +85,19 @@ public sealed class ScheduleSettingsControllerTests
                 [classroom.Id],
                 false,
                 null,
-                null),
+                null,
+                UpdateExperimentClassroomScope: true,
+                AllowedExperimentVenueNatures: TeachingVenueNature.Laboratory,
+                AllowedExperimentClassroomIds: [classroom.Id],
+                ExperimentRequiredCampusId: campus.Id,
+                ExperimentRequiredBuildingId: building.Id),
             CancellationToken.None);
 
         Assert.IsType<OkObjectResult>(result);
         db.ChangeTracker.Clear();
         var constraints = await db.TeachingTaskScheduleConstraints
             .Include(item => item.AllowedClassrooms)
+            .Include(item => item.AllowedExperimentClassrooms)
             .OrderBy(item => item.TeachingTaskId)
             .ToListAsync();
         Assert.Equal(2, constraints.Count);
@@ -103,6 +109,11 @@ public sealed class ScheduleSettingsControllerTests
             Assert.Equal(
                 classroom.Id,
                 Assert.Single(constraint.AllowedClassrooms).ClassroomId);
+            Assert.Equal(campus.Id, constraint.ExperimentRequiredCampusId);
+            Assert.Equal(building.Id, constraint.ExperimentRequiredBuildingId);
+            Assert.Equal(
+                classroom.Id,
+                Assert.Single(constraint.AllowedExperimentClassrooms).ClassroomId);
         });
     }
 

web/src/style.css

@@ -512,6 +512,8 @@ button { cursor: pointer; }
 .constraint-batch-form { margin-top: 16px; display: grid; gap: 10px; }
 .constraint-batch-form > .el-checkbox { padding: 8px 10px; background: #f7f9fb; border-left: 3px solid #ccd8e1; }
 .batch-classroom-scope { padding: 12px 14px 2px; display: grid; gap: 12px; border: 1px solid #d8e2e8; background: #fbfcfd; }
+.experiment-classroom-scope { margin-bottom: 18px; padding: 12px 14px 2px; border: 1px solid #d8e2e8; background: #fbfcfd; }
+.experiment-classroom-scope__title { margin-bottom: 12px; color: #34435e; font-size: 13px; font-weight: 650; }
 .constraint-list article { min-width: 0; padding: 13px 15px; display: grid; grid-template-columns: minmax(230px, 1fr) minmax(170px, auto) auto; align-items: center; gap: 14px; border: 1px solid var(--line); background: #fff; }
 .constraint-list article > div:first-child { min-width: 0; display: grid; gap: 4px; }
 .constraint-list article span { color: var(--teal); font: 700 9px/1.2 Consolas, monospace; }