diff --git a/internal/rond/diff_test.go b/internal/rond/diff_test.go
index b53e427..97cf738 100644
--- a/internal/rond/diff_test.go
+++ b/internal/rond/diff_test.go
@@ -166,7 +166,8 @@ func TestDiffVisitsDoesNotAlignOtherDerivedUUID(t *testing.T) {
 
 // 兜底配对要认得出「同一条但时间被改过」——时间不同就配不上，此时按新增 + 仅站内有报出，
 // 总比静默当成同一条好。
-func TestDiffVisitsFallbackNeedsSameTime(t *testing.T) {	b := &Backup{
+func TestDiffVisitsFallbackNeedsSameTime(t *testing.T) {
+	b := &Backup{
 		Visits:    []Visit{{SrcPK: 900, Arrival: tp("2026-09-01 10:00"), LocationSrcPK: ip(3)}},
 		Locations: []Location{{SrcPK: 3, Name: "家", Lat: 24.1, Lon: 109.1}},
 		VisitUUID: map[int]string{},