diff --git a/backend/prisma/schema.prisma b/backend/prisma/schema.prisma
index dd9bb12..b0f01e3 100644
--- a/backend/prisma/schema.prisma
+++ b/backend/prisma/schema.prisma
@@ -241,6 +241,7 @@ model Employee {
   gender            String?
   phone             String?
   idCardNumber      String?        // AES-256 加密存储
+  idType            String?        // 证件类型：ID_CARD(身份证,默认)/PASSPORT/HK_MACAO_TAIWAN/OTHER
   idCardHash        String?        // SHA-256 哈希，用于按身份证号查询匹配
   emergencyContact  String?
   emergencyPhone    String?
@@ -316,6 +317,7 @@ model LaborContract {
   startDate             DateTime
   endDate               DateTime?
   contractType          ContractType
+  contractCategory      String?    // 合同分类：LABOR_CONTRACT(劳动合同,默认)/LABOR_AGREEMENT(劳务协议)/INTERNSHIP(实习协议)/FLEXIBLE(灵活用工)
   signMethod            SignMethod @default(PAPER)
   contractYears         Int        @default(3)
   probationMonths       Int        @default(0)