diff --git a/crm-lead/src/main/java/com/crm/lead/domain/param/ConvertOpportunityParam.java b/crm-lead/src/main/java/com/crm/lead/domain/param/ConvertOpportunityParam.java
index ee175d9..a118682 100644
--- a/crm-lead/src/main/java/com/crm/lead/domain/param/ConvertOpportunityParam.java
+++ b/crm-lead/src/main/java/com/crm/lead/domain/param/ConvertOpportunityParam.java
@@ -27,8 +27,11 @@ public class ConvertOpportunityParam {
     @Schema(description = "意向客户 id（票 11；下拉选客户得到，引用 A4 客户模块。A4 下拉未就绪前可空）")
     private Long customerId;
 
-    @Schema(description = "地区国标 code（必填）")
-    private String regionCode;
+    @Schema(description = "省份国标 code（必填）")
+    private String provinceCode;
+
+    @Schema(description = "市/区国标 code（必填）")
+    private String cityCode;
 
     @Schema(description = "备注（自由文本，可空）")
     private String remark;
diff --git a/crm-lead/src/main/java/com/crm/lead/port/outbound/CreateOpportunityCmd.java b/crm-lead/src/main/java/com/crm/lead/port/outbound/CreateOpportunityCmd.java
index 6a75470..eac58bf 100644
--- a/crm-lead/src/main/java/com/crm/lead/port/outbound/CreateOpportunityCmd.java
+++ b/crm-lead/src/main/java/com/crm/lead/port/outbound/CreateOpportunityCmd.java
@@ -12,7 +12,8 @@ package com.crm.lead.port.outbound;
  * @param customerId         意向客户 id（票 11；下拉选客户得到，引用 A4 客户模块）。
  *                           <b>暂可空</b>：A4 客户下拉未就绪前前端传 null，商机侧跳过建关联子表；
  *                           A4 就绪后收紧为必填（票 11 终态契约）。
- * @param regionCode         地区国标 code（varchar 12，必填）
+ * @param provinceCode       省份国标 code（从线索带出，必填）
+ * @param cityCode           市/区国标 code（从线索带出，必填）
  * @param remark             备注（自由文本，可空）
  * @param sourceLeadName     线索名称快照
  * @param sourcePhone        联系电话快照
@@ -28,7 +29,8 @@ public record CreateOpportunityCmd(
         String partyA,
         String intendedCustomer,
         Long customerId,
-        String regionCode,
+        String provinceCode,
+        String cityCode,
         String remark,
         String sourceLeadName,
         String sourcePhone,
diff --git a/crm-lead/src/main/java/com/crm/lead/service/impl/LeadServiceImpl.java b/crm-lead/src/main/java/com/crm/lead/service/impl/LeadServiceImpl.java
index 35044f9..c80a475 100644
--- a/crm-lead/src/main/java/com/crm/lead/service/impl/LeadServiceImpl.java
+++ b/crm-lead/src/main/java/com/crm/lead/service/impl/LeadServiceImpl.java
@@ -346,7 +346,8 @@ public class LeadServiceImpl extends BaseServiceImpl<LeadMapper, Lead>
         if (StrUtil.isBlank(param.getOpportunityName())
                 || StrUtil.isBlank(param.getIndustryCode())
                 || StrUtil.isBlank(param.getIntendedCustomer())
-                || StrUtil.isBlank(param.getRegionCode())) {
+                || StrUtil.isBlank(param.getProvinceCode())
+                || StrUtil.isBlank(param.getCityCode())) {
             throw new BusinessErrorException(LeadConstants.CODE_LEAD_INVALID,
                     "商机名称、行业、意向客户、地区为必填");
         }
@@ -362,7 +363,7 @@ public class LeadServiceImpl extends BaseServiceImpl<LeadMapper, Lead>
             opportunityId = port.createOpportunity(new CreateOpportunityCmd(
                     lead.getId(), param.getOpportunityName(), param.getIndustryCode(),
                     param.getPartyA(), param.getIntendedCustomer(), param.getCustomerId(),
-                    param.getRegionCode(),
+                    param.getProvinceCode(), param.getCityCode(),
                     param.getRemark(), lead.getLeadName(), lead.getPhone(),
                     lead.getProductCode(), lead.getOwnerUserId(),
                     lead.getOwnerDeptIdSnapshot(), lead.getPoolId()));
diff --git a/crm-lead/src/test/java/com/crm/lead/service/impl/LeadServiceImplTest.java b/crm-lead/src/test/java/com/crm/lead/service/impl/LeadServiceImplTest.java
index a353349..765fd4c 100644
--- a/crm-lead/src/test/java/com/crm/lead/service/impl/LeadServiceImplTest.java
+++ b/crm-lead/src/test/java/com/crm/lead/service/impl/LeadServiceImplTest.java
@@ -182,7 +182,8 @@ class LeadServiceImplTest {
         param.setOpportunityName("测试商机");
         param.setIndustryCode("it");
         param.setIntendedCustomer("测试客户");
-        param.setRegionCode("440100");
+        param.setProvinceCode("440000");
+        param.setCityCode("440100");
         return param;
     }
 
diff --git a/crm-opportunity/src/main/java/com/crm/opportunity/port/inbound/impl/OpportunityCreationPortImpl.java b/crm-opportunity/src/main/java/com/crm/opportunity/port/inbound/impl/OpportunityCreationPortImpl.java
index 1ebf393..778e9f4 100644
--- a/crm-opportunity/src/main/java/com/crm/opportunity/port/inbound/impl/OpportunityCreationPortImpl.java
+++ b/crm-opportunity/src/main/java/com/crm/opportunity/port/inbound/impl/OpportunityCreationPortImpl.java
@@ -25,13 +25,10 @@ import java.time.LocalDateTime;
  * <p><b>票 12 唯一性预检</b>：新建前查 {@code source_lead_id} 是否已被占用，命中即抛业务错误
  * （避免依赖 DB 唯一键冲突走错误路径）；DB {@code uk(source_lead_id)} 仍作并发最终防线。</p>
  *
- * <p><b>票 13 关联客户</b>：{@code cmd.customerId()} 非空时建一条 {@code is_primary_intended=1}
+ * <p><b>沨 A4 走法甲</b>：{@code cmd.customerId()} 非空时建一条 {@code is_primary_intended=1}
  * 主要意向客户子表 + 刷主表冗余 {@code primary_customer_id/name}（票 03 C3）。
- * <b>customerId 走法甲（票 11）</b>：A4 客户下拉未就绪前 customerId 可空，此时跳过建子表 /
- * 不刷冗余（不倒退现有自由文本转商机）；A4 就绪后收紧为必填。</p>
- *
- * <p><b>省市 TODO</b>：cmd 仅带单个 {@code regionCode}，主表分 {@code provinceCode}/{@code cityCode}
- * 两列且 not null；省市拆分逻辑无 spec、非本票职责，暂两列同填 regionCode 占位，待「省市拆分」专票。</p>
+ * A4 客户下拉未就绪前 customerId 可空，此时跳过建子表 / 不刷冗余（不倒退现有自由文本转商机）；
+ * A4 就绪后收紧为必填。</p>
  */
 @Service
 @RequiredArgsConstructor
@@ -74,9 +71,9 @@ public class OpportunityCreationPortImpl implements OpportunityCreationPort {
         opp.setIndustryCode(cmd.industryCode());
         opp.setPartyA(cmd.partyA());
         opp.setRemark(cmd.remark());
-        // 省市 TODO：单 regionCode → 两列 not null，暂同填占位，待省市拆分专票
-        opp.setProvinceCode(cmd.regionCode());
-        opp.setCityCode(cmd.regionCode());
+        // 省/市国标 code（与线索同构两级，由转商机弹窗地区选择器带出）
+        opp.setProvinceCode(cmd.provinceCode());
+        opp.setCityCode(cmd.cityCode());
         // 归属 / 来源快照（从线索带出）
         opp.setOwnerUserId(cmd.ownerUserId());
         opp.setOwnerDeptId(cmd.ownerDeptId());
diff --git a/crm-opportunity/src/test/java/com/crm/opportunity/port/inbound/OpportunityCreationPortImplTest.java b/crm-opportunity/src/test/java/com/crm/opportunity/port/inbound/OpportunityCreationPortImplTest.java
index 932e279..887e596 100644
--- a/crm-opportunity/src/test/java/com/crm/opportunity/port/inbound/OpportunityCreationPortImplTest.java
+++ b/crm-opportunity/src/test/java/com/crm/opportunity/port/inbound/OpportunityCreationPortImplTest.java
@@ -48,7 +48,7 @@ class OpportunityCreationPortImplTest {
     private CreateOpportunityCmd cmd(Long customerId) {
         return new CreateOpportunityCmd(
                 LEAD_ID, "商机A", "ind01", "甲方X", "意向客户名", customerId,
-                "110100", "备注", "线索A", "13800000000", "prod01",
+                "110000", "110100", "备注", "线索A", "13800000000", "prod01",
                 100L, 200L, 300L);
     }
 
@@ -128,6 +128,9 @@ class OpportunityCreationPortImplTest {
         assertThat(saved.getSourceLeadId()).isEqualTo(LEAD_ID);
         assertThat(saved.getClaimTime()).isNotNull();
         assertThat(saved.getPrimaryCustomerNameSnapshot()).isEqualTo("意向客户名");
+        // 省/市两级分别落库（不再同填同一 code）
+        assertThat(saved.getProvinceCode()).isEqualTo("110000");
+        assertThat(saved.getCityCode()).isEqualTo("110100");
     }
 
     @Test