diff --git a/bgptools/pop.go b/bgptools/pop.go
index 0aaf41c..f3feb40 100644
--- a/bgptools/pop.go
+++ b/bgptools/pop.go
@@ -39,8 +39,6 @@ type PoPResult struct {
 	Result    string
 }
 
-// === 分类映射 ===
-
 var tier1Global = map[string]string{
 	"174":   "Cogent",
 	"1299":  "Arelion",
@@ -93,8 +91,6 @@ var ixps = map[string]string{
 	"6695":  "DE-CIX",
 }
 
-// === 工具函数 ===
-
 func getISPAbbr(asn, name string) string {
 	if abbr, ok := tier1Global[asn]; ok {
 		return abbr