diff --git a/src/challenges/challenges.service.ts b/src/challenges/challenges.service.ts
index fa50cda..e5978b4 100644
--- a/src/challenges/challenges.service.ts
+++ b/src/challenges/challenges.service.ts
@@ -178,6 +178,8 @@ export class ChallengesService {
         isJoined: Boolean(participation),
         type: challenge.type,
         badge: challenge.type === ChallengeType.SLEEP ? sleepBadge : undefined,
+        source: challenge.source,
+        shareCode: challenge.shareCode,
       };
     });
   }
@@ -284,6 +286,9 @@ export class ChallengesService {
       unit: challenge.progressUnit,
       type: challenge.type,
       badge,
+      creatorId: challenge.creatorId,
+      shareCode: challenge.shareCode,
+      source: challenge.source,
     };
   }
 
diff --git a/src/challenges/dto/challenge-detail.dto.ts b/src/challenges/dto/challenge-detail.dto.ts
index 7515657..70bf852 100644
--- a/src/challenges/dto/challenge-detail.dto.ts
+++ b/src/challenges/dto/challenge-detail.dto.ts
@@ -1,5 +1,5 @@
 import { ChallengeProgressDto, RankingItemDto } from './challenge-progress.dto';
-import { ChallengeType } from '../models/challenge.model';
+import { ChallengeSource, ChallengeType } from '../models/challenge.model';
 
 export interface BadgeInfoDto {
   code: string;
@@ -29,4 +29,7 @@ export interface ChallengeDetailDto {
   type: ChallengeType;
   unit: string;
   badge?: BadgeInfoDto;
+  creatorId: string | null;
+  shareCode?: string | null;
+  source: ChallengeSource;
 }
diff --git a/src/challenges/dto/challenge-list.dto.ts b/src/challenges/dto/challenge-list.dto.ts
index ad16910..8d8def1 100644
--- a/src/challenges/dto/challenge-list.dto.ts
+++ b/src/challenges/dto/challenge-list.dto.ts
@@ -1,4 +1,4 @@
-import { ChallengeStatus, ChallengeType } from '../models/challenge.model';
+import { ChallengeSource, ChallengeStatus, ChallengeType } from '../models/challenge.model';
 import { ChallengeProgressDto } from './challenge-progress.dto';
 
 export interface BadgeInfoDto {
@@ -30,6 +30,7 @@ export interface ChallengeListItemDto {
   type: ChallengeType;
   unit: string;
   badge?: BadgeInfoDto;
+  source: ChallengeSource;
 }
 
 export interface ChallengeListResponseDto {
diff --git a/src/challenges/dto/create-custom-challenge.dto.ts b/src/challenges/dto/create-custom-challenge.dto.ts
index 60037fd..23edd74 100644
--- a/src/challenges/dto/create-custom-challenge.dto.ts
+++ b/src/challenges/dto/create-custom-challenge.dto.ts
@@ -22,12 +22,10 @@ export class CreateCustomChallengeDto {
 
   @ApiProperty({ description: '开始时间戳（毫秒）', example: 1704067200000 })
   @IsNumber()
-  @Min(Date.now())
   startAt: number;
 
   @ApiProperty({ description: '结束时间戳（毫秒）', example: 1705881600000 })
   @IsNumber()
-  @Min(Date.now() + 86400000) // 至少未来 1 天
   endAt: number;
 
   @ApiProperty({ description: '每日目标值（如喝水8杯）', example: 8, minimum: 1, maximum: 1000 })