fix: IDNA domain match

rules/common/domain.go

@@ -1,6 +1,7 @@
 package common
 
 import (
+	"golang.org/x/net/idna"
 	"strings"
 
 	C "github.com/Dreamacro/clash/constant"
@@ -8,8 +9,9 @@ import (
 
 type Domain struct {
 	*Base
-	domain  string
-	adapter string
+	domain    string
+	rawDomain string
+	adapter   string
 }
 
 func (d *Domain) RuleType() C.RuleType {
@@ -28,14 +30,16 @@ func (d *Domain) Adapter() string {
 }
 
 func (d *Domain) Payload() string {
-	return d.domain
+	return d.rawDomain
 }
 
 func NewDomain(domain string, adapter string) *Domain {
+	actualDomain, _ := idna.ToASCII(domain)
 	return &Domain{
-		Base:    &Base{},
-		domain:  strings.ToLower(domain),
-		adapter: adapter,
+		Base:      &Base{},
+		domain:    strings.ToLower(actualDomain),
+		adapter:   adapter,
+		rawDomain: domain,
 	}
 }