diff --git a/configs/env.development.yaml b/configs/env.development.yaml
index 37818ef..3601998 100644
--- a/configs/env.development.yaml
+++ b/configs/env.development.yaml
@@ -31,7 +31,7 @@ storage:
     access_key: "AO6u6sDWi6L9TsPfr4awC7FYP85JTjt3bodZACCM"
     secret_key: "2fjxweGtSAEaUdVgDkWEmN7JbBxHBQDv1cLORb9_"
     bucket: "tianyuanapi"
-    domain: "https://file.haiyudata.com"
+    domain: "https://file.tianyuanapi.com"
 
 # ===========================================
 # 🔍 OCR服务配置 - 百度智能云
diff --git a/configs/env.production.yaml b/configs/env.production.yaml
index a478c64..af55d8d 100644
--- a/configs/env.production.yaml
+++ b/configs/env.production.yaml
@@ -61,7 +61,7 @@ storage:
     access_key: "AO6u6sDWi6L9TsPfr4awC7FYP85JTjt3bodZACCM"
     secret_key: "2fjxweGtSAEaUdVgDkWEmN7JbBxHBQDv1cLORb9_"
     bucket: "tianyuanapi"
-    domain: "https://file.haiyudata.com"
+    domain: "https://file.tianyuanapi.com"
 
 # ===========================================
 # 🔍 OCR服务配置 - 百度智能云
diff --git a/internal/shared/esign/signflow_service.go b/internal/shared/esign/signflow_service.go
index 9a14d5d..96736c4 100644
--- a/internal/shared/esign/signflow_service.go
+++ b/internal/shared/esign/signflow_service.go
@@ -172,6 +172,18 @@ func (s *SignFlowService) buildPartyASigner(fileID, signerAccount, signerName, t
 					OrgSealBizTypes: "PUBLIC",
 				},
 			},
+			{
+				CustomBizNum: "甲方骑缝章", // 建议设唯一标识，便于调试
+				FileId:fileID,
+				NormalSignFieldConfig: &NormalSignFieldConfig{
+					AutoSign: false,
+					SignFieldStyle: SignFieldStyleSeam, // 必须为 2（Edges）
+					SignFieldPosition: &SignFieldPosition{
+						AcrossPageMode: "ALL", // 覆盖全部页面（推荐）
+						PositionY:694.0, // 您指定的 Y 坐标（float64）
+					},
+				},
+			},
 		},
 	}
 }
@@ -203,7 +215,7 @@ func (s *SignFlowService) buildPartyBSigner(fileID string) SignerInfo {
 					SignFieldStyle: SignFieldStyleSeam, // 必须为 2（Edges）
 					SignFieldPosition: &SignFieldPosition{
 						AcrossPageMode: "ALL", // 覆盖全部页面（推荐）
-						PositionY:694.0, // 您指定的 Y 坐标（float64）
+						PositionY:554.0, // 您指定的 Y 坐标（float64）
 					},
 				},
 			},