diff --git a/src/ExamService/ExamService.php b/src/ExamService/ExamService.php
index a198b8e..aa173ce 100644
--- a/src/ExamService/ExamService.php
+++ b/src/ExamService/ExamService.php
@@ -4,10 +4,24 @@ declare(strict_types=1);
 
 namespace Dhd\Micro\Interface\ExamService;
 
-/**
- * 试题中心聚合契约
- */
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\ExamServiceInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\UserPaperInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\AiInterviewQuestionInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\CustomQuestionInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\PaperInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\GufenPaperInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\QuestionInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\QuestionTypeInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\QuestionCategoryInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\SmartPaperInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\CampusRelationInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\PaperImportInterface;
+use Dhd\Micro\Interface\ExamService\JsonRpcInterface\QuestionNoteInterface;
+
 interface ExamService extends
+    ExamServiceInterface,
+    UserPaperInterface,
+    AiInterviewQuestionInterface,
     CustomQuestionInterface,
     PaperInterface,
     GufenPaperInterface,
@@ -15,99 +29,6 @@ interface ExamService extends
     QuestionTypeInterface,
     QuestionCategoryInterface,
     SmartPaperInterface,
-    UserPaperInterface,
     CampusRelationInterface,
     PaperImportInterface,
-    QuestionNoteInterface,
-    AiInterviewQuestionInterface
-{
-    /**
-     * 获取练习列表.
-     */
-    public function getPracticeList(int $userId): array;
-
-    /**
-     * 获取练习详情.
-     */
-    public function getPracticeDetail(int $userId, int $id): array;
-
-    /**
-     * 提交练习答案.
-     */
-    public function submitPractice(int $userId, int $paperId, array $answers): array;
-
-    /**
-     * 开始考试.
-     */
-    public function startExam(array $params): array;
-
-    /**
-     * 提交考试.
-     */
-    public function submitExam(array $params): array;
-
-    /**
-     * 获取用户考试记录列表.
-     */
-    public function getUserExamRecords(array $params): array;
-
-    /**
-     * 获取考试记录详情.
-     */
-    public function getExamRecordDetail(int $recordId, int $userId): array;
-
-    /**
-     * 获取考试记录题目列表.
-     */
-    public function getByRecordId(int $userId, int $recordId): array;
-
-    /**
-     * 保存用户答题记录.
-     */
-    public function saveAnswer(array $params): bool;
-
-    /**
-     * 获取用户错题列表.
-     */
-    public function getUserWrongQuestions(array $params): array;
-
-    /**
-     * 标记错题为已掌握.
-     */
-    public function markAsMastered(int $userId, int $wrongId): bool;
-
-    /**
-     * 添加错题笔记（避免与题目笔记 addNote 重名）.
-     */
-    public function addWrongQuestionNote(array $params): bool;
-
-    /**
-     * 获取题目错误统计.
-     */
-    public function getErrorStats(int $userId, int $questionId): array;
-
-    /**
-     * 批量更新题目得分.
-     */
-    public function batchUpdateScores(array $params): bool;
-
-    /**
-     * 获取考试类型列表（V1 兼容接口）.
-     */
-    public function getExamTypeList(array $params): array;
-
-    /**
-     * 获取考试类型详情（V1 兼容接口）.
-     */
-    public function getExamTypeDetail(int $id): array;
-
-    /**
-     * 获取科目列表（V1 兼容接口）.
-     */
-    public function getSubjectList(array $params): array;
-
-    /**
-     * 获取题库列表（V1 兼容接口）.
-     */
-    public function getQuestionStoreList(array $params): array;
-}
+    QuestionNoteInterface {}
diff --git a/src/ExamService/AiInterviewQuestionInterface.php b/src/ExamService/JsonRpcInterface/AiInterviewQuestionInterface.php
similarity index 94%
rename from src/ExamService/AiInterviewQuestionInterface.php
rename to src/ExamService/JsonRpcInterface/AiInterviewQuestionInterface.php
index 7a95759..77161df 100644
--- a/src/ExamService/AiInterviewQuestionInterface.php
+++ b/src/ExamService/JsonRpcInterface/AiInterviewQuestionInterface.php
@@ -1,8 +1,6 @@
 <?php
 
-declare(strict_types=1);
-
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface AiInterviewQuestionInterface
 {
diff --git a/src/ExamService/CampusRelationInterface.php b/src/ExamService/JsonRpcInterface/CampusRelationInterface.php
similarity index 95%
rename from src/ExamService/CampusRelationInterface.php
rename to src/ExamService/JsonRpcInterface/CampusRelationInterface.php
index 8e3173e..29d6f77 100644
--- a/src/ExamService/CampusRelationInterface.php
+++ b/src/ExamService/JsonRpcInterface/CampusRelationInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface CampusRelationInterface
 {
diff --git a/src/ExamService/CustomQuestionInterface.php b/src/ExamService/JsonRpcInterface/CustomQuestionInterface.php
similarity index 96%
rename from src/ExamService/CustomQuestionInterface.php
rename to src/ExamService/JsonRpcInterface/CustomQuestionInterface.php
index ab54cd0..644c4fb 100644
--- a/src/ExamService/CustomQuestionInterface.php
+++ b/src/ExamService/JsonRpcInterface/CustomQuestionInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface CustomQuestionInterface
 {
diff --git a/src/ExamService/JsonRpcInterface/ExamServiceInterface.php b/src/ExamService/JsonRpcInterface/ExamServiceInterface.php
new file mode 100644
index 0000000..b43302e
--- /dev/null
+++ b/src/ExamService/JsonRpcInterface/ExamServiceInterface.php
@@ -0,0 +1,112 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
+
+/**
+ * 试题中心聚合契约
+ */
+interface ExamServiceInterface
+{
+    /**
+     * 获取练习列表.
+     */
+    public function getPracticeList(int $userId): array;
+
+    /**
+     * 获取练习详情.
+     */
+    public function getPracticeDetail(int $userId, int $id): array;
+
+    /**
+     * 提交练习答案.
+     */
+    public function submitPractice(int $userId, int $paperId, array $answers): array;
+
+    /**
+     * 开始考试.
+     */
+    public function startExam(array $params): array;
+
+    /**
+     * 提交考试.
+     */
+    public function submitExam(array $params): array;
+
+    /**
+     * 获取用户考试记录列表.
+     */
+    public function getUserExamRecords(array $params): array;
+
+    /**
+     * 获取考试记录详情.
+     */
+    public function getExamRecordDetail(int $recordId, int $userId): array;
+
+    /**
+     * 获取考试记录题目列表.
+     */
+    public function getByRecordId(int $userId, int $recordId): array;
+
+    /**
+     * 保存用户答题记录.
+     */
+    public function saveAnswer(array $params): bool;
+
+    /**
+     * 获取用户错题列表.
+     */
+    public function getUserWrongQuestions(array $params): array;
+
+    /**
+     * 标记错题为已掌握.
+     */
+    public function markAsMastered(int $userId, int $wrongId): bool;
+
+    /**
+     * 添加错题笔记（避免与题目笔记 addNote 重名）.
+     */
+    public function addWrongQuestionNote(array $params): bool;
+
+    /**
+     * 获取题目错误统计.
+     */
+    public function getErrorStats(int $userId, int $questionId): array;
+
+    /**
+     * 批量更新题目得分.
+     */
+    public function batchUpdateScores(array $params): bool;
+
+    /**
+     * 获取考试类型列表（V1 兼容接口）.
+     */
+    public function getExamTypeList(array $params): array;
+
+    /**
+     * 获取考试类型详情（V1 兼容接口）.
+     */
+    public function getExamTypeDetail(int $id): array;
+
+    /**
+     * 获取科目列表（V1 兼容接口）.
+     */
+    public function getSubjectList(array $params): array;
+
+    /**
+     * 获取题库列表（V1 兼容接口）.
+     */
+    public function getQuestionStoreList(array $params): array;
+
+
+    /**
+     * 提交题目答案，根据试卷类型自动选择智能组卷或普通试卷逻辑.
+     */
+    public function submitAnswer(array $params, int $userId): array;
+
+    /**
+     * 提交用户试卷，根据试卷类型自动选择智能组卷或普通试卷逻辑.
+     */
+    public function submitUserPaper(array $params): array;
+}
diff --git a/src/ExamService/GufenPaperInterface.php b/src/ExamService/JsonRpcInterface/GufenPaperInterface.php
similarity index 96%
rename from src/ExamService/GufenPaperInterface.php
rename to src/ExamService/JsonRpcInterface/GufenPaperInterface.php
index e1e7e0b..aa6a887 100644
--- a/src/ExamService/GufenPaperInterface.php
+++ b/src/ExamService/JsonRpcInterface/GufenPaperInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface GufenPaperInterface
 {
diff --git a/src/ExamService/PaperImportInterface.php b/src/ExamService/JsonRpcInterface/PaperImportInterface.php
similarity index 94%
rename from src/ExamService/PaperImportInterface.php
rename to src/ExamService/JsonRpcInterface/PaperImportInterface.php
index 4f493f6..4c5be81 100644
--- a/src/ExamService/PaperImportInterface.php
+++ b/src/ExamService/JsonRpcInterface/PaperImportInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface PaperImportInterface
 {
diff --git a/src/ExamService/PaperInterface.php b/src/ExamService/JsonRpcInterface/PaperInterface.php
similarity index 96%
rename from src/ExamService/PaperInterface.php
rename to src/ExamService/JsonRpcInterface/PaperInterface.php
index 32eda26..83995b0 100644
--- a/src/ExamService/PaperInterface.php
+++ b/src/ExamService/JsonRpcInterface/PaperInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface PaperInterface
 {
diff --git a/src/ExamService/QuestionCategoryInterface.php b/src/ExamService/JsonRpcInterface/QuestionCategoryInterface.php
similarity index 93%
rename from src/ExamService/QuestionCategoryInterface.php
rename to src/ExamService/JsonRpcInterface/QuestionCategoryInterface.php
index 298f7d2..72bf7a7 100644
--- a/src/ExamService/QuestionCategoryInterface.php
+++ b/src/ExamService/JsonRpcInterface/QuestionCategoryInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface QuestionCategoryInterface
 {
diff --git a/src/ExamService/QuestionInterface.php b/src/ExamService/JsonRpcInterface/QuestionInterface.php
similarity index 97%
rename from src/ExamService/QuestionInterface.php
rename to src/ExamService/JsonRpcInterface/QuestionInterface.php
index 0a09729..e64c049 100644
--- a/src/ExamService/QuestionInterface.php
+++ b/src/ExamService/JsonRpcInterface/QuestionInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface QuestionInterface
 {
diff --git a/src/ExamService/QuestionNoteInterface.php b/src/ExamService/JsonRpcInterface/QuestionNoteInterface.php
similarity index 94%
rename from src/ExamService/QuestionNoteInterface.php
rename to src/ExamService/JsonRpcInterface/QuestionNoteInterface.php
index 6d65686..e0835f6 100644
--- a/src/ExamService/QuestionNoteInterface.php
+++ b/src/ExamService/JsonRpcInterface/QuestionNoteInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface QuestionNoteInterface
 {
diff --git a/src/ExamService/QuestionTypeInterface.php b/src/ExamService/JsonRpcInterface/QuestionTypeInterface.php
similarity index 86%
rename from src/ExamService/QuestionTypeInterface.php
rename to src/ExamService/JsonRpcInterface/QuestionTypeInterface.php
index 9c1491a..38710ce 100644
--- a/src/ExamService/QuestionTypeInterface.php
+++ b/src/ExamService/JsonRpcInterface/QuestionTypeInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface QuestionTypeInterface
 {
diff --git a/src/ExamService/SmartPaperInterface.php b/src/ExamService/JsonRpcInterface/SmartPaperInterface.php
similarity index 90%
rename from src/ExamService/SmartPaperInterface.php
rename to src/ExamService/JsonRpcInterface/SmartPaperInterface.php
index 0ab76ae..455fd5d 100644
--- a/src/ExamService/SmartPaperInterface.php
+++ b/src/ExamService/JsonRpcInterface/SmartPaperInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface SmartPaperInterface
 {
@@ -22,8 +22,6 @@ interface SmartPaperInterface
      */
     public function getUserSmartPaperDetail(int $paperRecordId, bool $getCorrect): array;
 
-    // submitAnswer/submitUserPaper 与 UserPaperInterface 重名，统一由 UserPaperInterface 声明，避免聚合接口代理重复声明
-
     /**
      * 获取用户试卷历史列表
      * @param array $params 参数：campus_id, exam_type_id, page, limit
diff --git a/src/ExamService/UserPaperInterface.php b/src/ExamService/JsonRpcInterface/UserPaperInterface.php
similarity index 71%
rename from src/ExamService/UserPaperInterface.php
rename to src/ExamService/JsonRpcInterface/UserPaperInterface.php
index 0d3e18c..36e53bd 100644
--- a/src/ExamService/UserPaperInterface.php
+++ b/src/ExamService/JsonRpcInterface/UserPaperInterface.php
@@ -2,7 +2,7 @@
 
 declare(strict_types=1);
 
-namespace Dhd\Micro\Interface\ExamService;
+namespace Dhd\Micro\Interface\ExamService\JsonRpcInterface;
 
 interface UserPaperInterface
 {
@@ -11,16 +11,6 @@ interface UserPaperInterface
      */
     public function startDoPaper(int $userId, int $paperId): array;
 
-    /**
-     * 提交题目答案
-     */
-    public function submitAnswer(array $params, int $userId): array;
-
-    /**
-     * 提交用户试卷
-     */
-    public function submitUserPaper(array $params): array;
-
     /**
      * 获取用户试卷详情
      */