diff --git a/YD_Event.Application/Client/EventClientController.cs b/YD_Event.Application/Client/EventClientController.cs
index c44cd9b..57b5ccb 100644
--- a/YD_Event.Application/Client/EventClientController.cs
+++ b/YD_Event.Application/Client/EventClientController.cs
@@ -913,6 +913,9 @@ public class EventClientController : IDynamicApiController
             
         if (reg == null) throw Oops.Bah("报名记录不存在");
         
+        // 预报名记录不可见
+        if (reg.PaymentStatus == 5) throw Oops.Bah("报名记录不存在");
+        
         // 计算 EventStatus
         EventStatus status = EventStatus.Enrolling;
         var now = DateTime.Now;
diff --git a/YD_Event.Application/Client/MyController.cs b/YD_Event.Application/Client/MyController.cs
index 1c91865..4e222d2 100644
--- a/YD_Event.Application/Client/MyController.cs
+++ b/YD_Event.Application/Client/MyController.cs
@@ -605,7 +605,7 @@ public class MyController : IDynamicApiController
         
         // 1. 先分页查询报名记录
         var regQuery = _registrationRepository.AsQueryable()
-            .Where(r => r.CreatedUserId == userId && !r.DeleteMark && r.PaymentStatus != 3 && r.PaymentStatus != 4)
+            .Where(r => r.CreatedUserId == userId && !r.DeleteMark && r.PaymentStatus != 3 && r.PaymentStatus != 4 && r.PaymentStatus != 5)
             .OrderByDescending(r => r.RegistrationTime);
 
         var pagedRegs = await regQuery.ToPagedListAsync(input);
diff --git a/YD_Event.Application/Event/EventArrangementService.cs b/YD_Event.Application/Event/EventArrangementService.cs
index 8c431b3..62b8492 100644
--- a/YD_Event.Application/Event/EventArrangementService.cs
+++ b/YD_Event.Application/Event/EventArrangementService.cs
@@ -107,7 +107,7 @@ namespace YD_Event.Application.Event;
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
             .Where((p, r) => r.EventId == eventId
                 && r.PaymentStatus != 4 && r.PaymentStatus != 3 // 排除已取消的报名
-                && r.PaymentStatus != 3 // 排除已退款的报名
+                && r.PaymentStatus != 5 // 排除预报名记录
                 && !p.DeleteMark // 排除已删除的人员
                 && p.PersonType == PersonType.Athlete) // 只统计运动员
             .GroupBy((p, r) => new { p.ProjectId, p.GroupName })
@@ -119,6 +119,7 @@ namespace YD_Event.Application.Event;
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
             .Where((p, r) => r.EventId == eventId
                 && r.PaymentStatus != 4 && r.PaymentStatus != 3
+                && r.PaymentStatus != 5 // 排除预报名记录
                 && !p.DeleteMark
                 && p.PersonType == PersonType.Athlete
                 && r.TeamName != null)
@@ -284,6 +285,7 @@ namespace YD_Event.Application.Event;
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
             .Where((p, r) => r.EventId == eventId
                 && r.PaymentStatus != 4 && r.PaymentStatus != 3
+                && r.PaymentStatus != 5 // 排除预报名记录
                 && !p.DeleteMark
                 && p.PersonType == PersonType.Athlete)
             .GroupBy((p, r) => new { p.ProjectId, p.GroupName })
@@ -295,6 +297,7 @@ namespace YD_Event.Application.Event;
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
             .Where((p, r) => r.EventId == eventId
                 && r.PaymentStatus != 4 && r.PaymentStatus != 3
+                && r.PaymentStatus != 5 // 排除预报名记录
                 && !p.DeleteMark
                 && p.PersonType == PersonType.Athlete
                 && r.TeamName != null)
@@ -325,6 +328,7 @@ namespace YD_Event.Application.Event;
                 .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
                 .Where((p, r) => p.ProjectId == eventProj.Id
                     && r.PaymentStatus != 4 && r.PaymentStatus != 3
+                    && r.PaymentStatus != 5 // 排除预报名记录
                     && !p.DeleteMark
                     && p.PersonType == PersonType.Athlete)
                 .OrderBy(p => p.GroupName)
diff --git a/YD_Event.Application/Event/EventRecordService.cs b/YD_Event.Application/Event/EventRecordService.cs
index 42da748..30f9bd0 100644
--- a/YD_Event.Application/Event/EventRecordService.cs
+++ b/YD_Event.Application/Event/EventRecordService.cs
@@ -86,6 +86,7 @@ public class EventRecordService : BaseService<EventRegistration>, ITransient
             .LeftJoin<AppUserEntity>((r, e, u) => r.CreatedUserId == u.Id)
             .LeftJoin<SysUserEntity>((r, e, u, s) => r.CreatedUserId == s.Id)
             .LeftJoin<MerchantEntity>((r, e, u, s, m) => r.CreatedUserId == m.CreatedUserId)
+            .Where((r, e, u, s, m) => r.PaymentStatus != 5) // 排除预报名记录
             .WhereIF(!string.IsNullOrWhiteSpace(input.EventName), (r, e, u, s, m) => e.EventName.Contains(input.EventName))
             .WhereIF(input.StartTime.HasValue, (r, e, u, s, m) => e.MatchStartTime >= input.StartTime)
             .WhereIF(input.EndTime.HasValue, (r, e, u, s, m) => e.MatchStartTime <= input.EndTime)
diff --git a/YD_Event.Application/Event/EventRegistrationService.cs b/YD_Event.Application/Event/EventRegistrationService.cs
index 4d9f5ff..47bfa52 100644
--- a/YD_Event.Application/Event/EventRegistrationService.cs
+++ b/YD_Event.Application/Event/EventRegistrationService.cs
@@ -66,7 +66,7 @@ public class EventRegistrationService : BaseService<EventRegistration>, ITransie
     public async Task<PageResult<RegistrationListOutput>> Page(RegistrationQueryInput input)
     {
         var query = _repository.AsQueryable()
-            .Where(x => x.PaymentStatus != 4 && x.PaymentStatus != 3) // 过滤掉已取消和已退款的报名记录
+            .Where(x => x.PaymentStatus != 4 && x.PaymentStatus != 3 && x.PaymentStatus != 5) // 过滤掉已取消、已退款和预报名的记录
             .WhereIF(input.EventId.HasValue, x => x.EventId == input.EventId)
             .WhereIF(input.RegistrationMode.HasValue, x => x.RegistrationMode == input.RegistrationMode)
             .WhereIF(!string.IsNullOrWhiteSpace(input.UnitName), x => x.TeamName.Contains(input.UnitName))
@@ -490,7 +490,7 @@ public class EventRegistrationService : BaseService<EventRegistration>, ITransie
     public async Task<byte[]> Export(RegistrationQueryInput input)
     {
         var registrations = await _repository.AsQueryable()
-            .Where(x => x.PaymentStatus != 4 && x.PaymentStatus != 3) // 过滤掉已取消和已退款的报名记录
+            .Where(x => x.PaymentStatus != 4 && x.PaymentStatus != 3 && x.PaymentStatus != 5) // 过滤掉已取消、已退款和预报名的记录
             .WhereIF(input.EventId.HasValue, x => x.EventId == input.EventId)
             .WhereIF(input.RegistrationMode.HasValue, x => x.RegistrationMode == input.RegistrationMode)
             .WhereIF(!string.IsNullOrWhiteSpace(input.UnitName), x => x.TeamName.Contains(input.UnitName))
diff --git a/YD_Event.Application/Event/EventScoreService.cs b/YD_Event.Application/Event/EventScoreService.cs
index 346c2ba..ec544cc 100644
--- a/YD_Event.Application/Event/EventScoreService.cs
+++ b/YD_Event.Application/Event/EventScoreService.cs
@@ -133,6 +133,7 @@ public class EventScoreService : BaseService<EventResult>, ITransient
                 .Where((p, r, res, c) => r.EventId == input.EventId 
                     && r.PaymentStatus != 3 // 排除已退款的报名
                     && r.PaymentStatus != 4 // 排除已取消的报名
+                    && r.PaymentStatus != 5 // 排除预报名记录
                     && (p.PersonType == PersonType.Athlete || p.PersonType == PersonType.User));
             
             // 应用筛选条件
@@ -338,7 +339,9 @@ public class EventScoreService : BaseService<EventResult>, ITransient
         // 步骤1：获取该赛事的所有运动员的 UserId
         var athleteUserIds = await _personRepository.AsQueryable()
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
-            .Where((p, r) => r.EventId == input.EventId && p.PersonType == PersonType.Athlete && !p.DeleteMark)
+            .Where((p, r) => r.EventId == input.EventId 
+                && r.PaymentStatus != 5 // 排除预报名记录
+                && p.PersonType == PersonType.Athlete && !p.DeleteMark)
             .Select(p => p.UserId)
             .ToListAsync();
 
@@ -378,7 +381,9 @@ public class EventScoreService : BaseService<EventResult>, ITransient
         // 这样可以获取到 EventRegistrationPerson.Id 用于证书发放
         var existingPersons = await _personRepository.AsQueryable()
             .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
-            .Where((p, r) => r.EventId == input.EventId && coachLeaderUserIds.Contains(p.UserId) && p.PersonType == input.PersonType && !p.DeleteMark)
+            .Where((p, r) => r.EventId == input.EventId 
+                && r.PaymentStatus != 5 // 排除预报名记录
+                && coachLeaderUserIds.Contains(p.UserId) && p.PersonType == input.PersonType && !p.DeleteMark)
             .LeftJoin<YD_Event.Core.Entities.AppUser>((p, r, u) => p.UserId == u.Id)
             .Select((p, r, u) => new 
             {
@@ -893,7 +898,9 @@ public class EventScoreService : BaseService<EventResult>, ITransient
                 var relatedAthleteRegistrations = await _personRepository.AsQueryable()
                     .InnerJoin<EventRegistration>((p, r) => p.RegistrationId == r.Id)
                     .InnerJoin<TeamMember>((p, r, tm) => p.UserId == tm.UserId)
-                    .Where((p, r, tm) => r.EventId == input.EventId && teamIds.Contains(tm.TeamId) && !p.DeleteMark)
+                    .Where((p, r, tm) => r.EventId == input.EventId 
+                        && r.PaymentStatus != 5 // 排除预报名记录
+                        && teamIds.Contains(tm.TeamId) && !p.DeleteMark)
                     .Select((p, r) => r)
                     .ToListAsync();
                     
diff --git a/YD_Event.Application/Event/UnifiedRegistrationService.cs b/YD_Event.Application/Event/UnifiedRegistrationService.cs
index fd8c782..485bea6 100644
--- a/YD_Event.Application/Event/UnifiedRegistrationService.cs
+++ b/YD_Event.Application/Event/UnifiedRegistrationService.cs
@@ -179,7 +179,7 @@ public class UnifiedRegistrationService : ITransient
         registration.TeamName = input.RegistrationMode == 2 ? input.TeamName : null;
         registration.ContactName = input.ContactName;
         registration.ContactPhone = input.ContactPhone;
-        registration.PaymentStatus = 0;
+        registration.PaymentStatus = 5; // 5=待支付确认，不占用正式名额
         registration.OrderNo = string.Empty; // 清空旧的订单号，确保重新生成新订单
         registration.UpdatedTime = DateTime.Now;
         registration.UpdatedUserId = input.CreatedUserId;
diff --git a/YD_Event.Application/Event/UserEventRecordService.cs b/YD_Event.Application/Event/UserEventRecordService.cs
index 5731e5a..0ae117f 100644
--- a/YD_Event.Application/Event/UserEventRecordService.cs
+++ b/YD_Event.Application/Event/UserEventRecordService.cs
@@ -109,9 +109,11 @@ public class UserEventRecordService : IDynamicApiController, ITransient
             // - 免费赛事：直接显示
             // - 线下支付时：显示未支付(0)和已支付(1)状态的数据
             // - 线上支付时：仅显示已支付(1)状态的数据
+            // - 排除预报名记录(5)，仅在支付成功后才可见
             .Where((r, e, fc) => 
                 r.PaymentStatus != 3 && // 排除已退款的报名
                 r.PaymentStatus != 4 && // 排除已取消的报名
+                r.PaymentStatus != 5 && // 排除预报名记录
                 ((e.ChargeMode == ChargeMode.Free) ||
                 (r.PaymentMethod == 1 && (r.PaymentStatus == 0 || r.PaymentStatus == 1)) || 
                 (r.PaymentMethod == 2 && r.PaymentStatus == 1)))
@@ -646,6 +648,9 @@ public class UserEventRecordService : IDynamicApiController, ITransient
         var userId = _authManager.UserId;
         var registration = await _registrationRepository.GetFirstAsync(x => x.Id == registrationId && x.CreatedUserId == userId);
         if (registration == null) throw Oops.Bah("报名记录不存在");
+        
+        // 预报名记录不可见
+        if (registration.PaymentStatus == 5) throw Oops.Bah("报名记录不存在");
 
         // 获取赛事信息
         var eventInfo = await _eventRepository.GetByIdAsync(registration.EventId);
diff --git a/YD_Event.Application/YD_Event.Application.xml b/YD_Event.Application/YD_Event.Application.xml
index dcfbebc..8f0cc52 100644
--- a/YD_Event.Application/YD_Event.Application.xml
+++ b/YD_Event.Application/YD_Event.Application.xml
@@ -2792,9 +2792,19 @@
             退款原因
             </summary>
         </member>
-        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.CancelItemIds">
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.CancelType">
             <summary>
-            取消的项目ID列表（可选，用于部分取消）
+            取消类型：0-全部取消，1-部分取消
+            </summary>
+        </member>
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.PersonIds">
+            <summary>
+            取消的人员ID列表（部分取消时使用）
+            </summary>
+        </member>
+        <member name="P:YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput.CancelTeams">
+            <summary>
+            取消的团队Key列表（部分取消时使用）
             </summary>
         </member>
         <member name="T:YD_Event.Application.Client.Dtos.MiniProgramLoginInput">
@@ -3701,6 +3711,11 @@
             <param name="input">上传素材输入参数</param>
             <returns>操作是否成功</returns>
         </member>
+        <member name="M:YD_Event.Application.Client.EventClientController.CalculateRefundAmount(YD_Event.Application.Event.Dtos.CalculateRefundAmountInput)">
+            <summary>
+            计算退款金额
+            </summary>
+        </member>
         <member name="M:YD_Event.Application.Client.EventClientController.CancelRegistrationRefund(YD_Event.Application.Client.Dtos.CancelRegistrationRefundInput)">
             <summary>
             取消报名并申请退款
@@ -8719,7 +8734,7 @@
         <member name="T:YD_Event.Application.Event.EventStatusUpdateService">
             <summary>
             赛事状态自动更新后台服务
-            每5分钟执行一次，自动更新赛事状态
+            每10秒执行一次，自动更新赛事状态
             </summary>
         </member>
         <member name="M:YD_Event.Application.Event.EventStatusUpdateService.CalculateEventStatus(YD_Event.Core.Entities.EventInfo,System.DateTime)">