diff --git a/backend/country/docker-compose-dev.yaml b/backend/country/docker-compose-dev.yaml
index 368aa48..b50734a 100644
--- a/backend/country/docker-compose-dev.yaml
+++ b/backend/country/docker-compose-dev.yaml
@@ -4,7 +4,7 @@ services:
     container_name: country_db
     restart: always
     ports:
-    - 20001:5432
+    - 20011:5432
     entrypoint:
     - /scripts/db-lanuch-entrypoint.sh
     environment:
@@ -23,7 +23,7 @@ services:
     container_name: country_api
     restart: always
     ports:
-    - 20000:80
+    - 20010:80
     depends_on:
     - postgres
     networks:
diff --git a/backend/country/src/go.mod b/backend/country/src/go.mod
index 7bb5664..4b95d2a 100644
--- a/backend/country/src/go.mod
+++ b/backend/country/src/go.mod
@@ -8,7 +8,6 @@ require (
 	github.com/lib/pq v1.10.9
 	github.com/spf13/viper v1.21.0
 	go.uber.org/zap v1.27.0
-	golang.org/x/crypto v0.43.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 )
 
@@ -46,6 +45,7 @@ require (
 	go.uber.org/multierr v1.10.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/arch v0.20.0 // indirect
+	golang.org/x/crypto v0.43.0 // indirect
 	golang.org/x/mod v0.28.0 // indirect
 	golang.org/x/net v0.45.0 // indirect
 	golang.org/x/sync v0.17.0 // indirect
diff --git a/backend/country/src/logic/read.go b/backend/country/src/logic/read.go
index 322dceb..5d509a5 100644
--- a/backend/country/src/logic/read.go
+++ b/backend/country/src/logic/read.go
@@ -139,13 +139,14 @@ func ReadHandler(c *gin.Context) {
 	// 计算分页偏移量
 	offset := (page - 1) * pageSize
 
-	// 拼接分页SQL
-	querySQL := baseSQL + " ORDER BY country_id LIMIT $"+strconv.Itoa(paramIndex)+" OFFSET $"+strconv.Itoa(paramIndex+1)
+	// 拼接分页SQL（使用fmt.Sprintf更清晰）
+	querySQL := fmt.Sprintf("%s ORDER BY country_id LIMIT $%d OFFSET $%d", baseSQL, paramIndex, paramIndex+1)
 	args = append(args, pageSize, offset)
 
-	// 查询总条数
+	// 查询总条数（修正参数传递方式）
 	var total int64
-	err = db.DB.QueryRow(countSQL, args...[:len(args)-2]...).Scan(&total)
+	countArgs := args[:len(args)-2] // 排除分页参数
+	err = db.DB.QueryRow(countSQL, countArgs...).Scan(&total)
 	if err != nil {
 		zap.L().Error("❌ 查询总条数失败",
 			zap.String("req_id", reqID),