diff --git a/server/app/goauto/purchase/ai_match_eligibility.go b/server/app/goauto/purchase/ai_match_eligibility.go
index 04fbb3b..094a664 100644
--- a/server/app/goauto/purchase/ai_match_eligibility.go
+++ b/server/app/goauto/purchase/ai_match_eligibility.go
@@ -32,7 +32,10 @@ type skuCombinationRow struct {
 }
 
 func sybSpecsTrusted(syb models.SYBProduct) bool {
-	return syb.ParseStatus == models.SYBParseStatusSuccess || syb.ManuallyConfirmed
+	if syb.ParseStatus == models.SYBParseStatusFailed {
+		return false
+	}
+	return strings.TrimSpace(syb.TargetColor) != "" || strings.TrimSpace(syb.TargetSize) != ""
 }
 
 func (s *Service) loadLatestSKUCombinations(ctx context.Context, pddIDs []uint64, dataset *batchPreviewDataset) error {
diff --git a/server/app/goauto/purchase/batch_spec_match_test.go b/server/app/goauto/purchase/batch_spec_match_test.go
index bcd608e..ab936d2 100644
--- a/server/app/goauto/purchase/batch_spec_match_test.go
+++ b/server/app/goauto/purchase/batch_spec_match_test.go
@@ -175,10 +175,10 @@ func TestBatchSpecMatchPersistsExactMatchBeforePurchaseCreation(t *testing.T) {
 	}
 }
 
-func TestManuallyConfirmedUncertainSpecsCanBeMatchedBeforePurchase(t *testing.T) {
+func TestExtractedUncertainSpecsCanBeMatchedBeforePurchase(t *testing.T) {
 	service, f := exactBatchSpecFixture(t)
 	if err := service.DB.Model(&models.SYBProduct{}).Where("id = ?", f.syb.ID).Updates(map[string]any{
-		"parse_status": models.SYBParseStatusUncertain, "manually_confirmed": true,
+		"parse_status": models.SYBParseStatusUncertain, "manually_confirmed": false,
 	}).Error; err != nil {
 		t.Fatal(err)
 	}
@@ -187,15 +187,15 @@ func TestManuallyConfirmedUncertainSpecsCanBeMatchedBeforePurchase(t *testing.T)
 
 	before, err := service.BatchPreview(context.Background(), BatchPreviewRequest{SYBProductIDs: []uint64{f.syb.ID}})
 	if err != nil || len(before.Items) != 1 || before.Items[0].Eligible || !before.Items[0].AIMatchEligible || before.Items[0].ProcessStage != ProcessStageColorMapping {
-		t.Fatalf("manually confirmed specs did not enter matching: %+v err=%v", before, err)
+		t.Fatalf("extracted uncertain specs did not enter matching: %+v err=%v", before, err)
 	}
 	matched, err := service.BatchSpecMatch(context.Background(), BatchSpecMatchRequest{SYBProductIDs: []uint64{f.syb.ID}})
 	if err != nil || matched.AutoConfirmedCount != 1 || matcher.calls != 0 {
-		t.Fatalf("manual correction did not allow exact match: %+v calls=%d err=%v", matched, matcher.calls, err)
+		t.Fatalf("extracted uncertain specs did not allow exact match: %+v calls=%d err=%v", matched, matcher.calls, err)
 	}
 	after, err := service.BatchPreview(context.Background(), BatchPreviewRequest{SYBProductIDs: []uint64{f.syb.ID}})
 	if err != nil || !after.Items[0].Eligible || after.Items[0].ProcessStage != ProcessStagePurchaseReady {
-		t.Fatalf("saved mapping did not unlock manual correction: %+v err=%v", after, err)
+		t.Fatalf("saved mapping did not unlock extracted uncertain specs: %+v err=%v", after, err)
 	}
 }
 
diff --git a/server/app/goauto/purchase/batch_test.go b/server/app/goauto/purchase/batch_test.go
index b074866..2b0b79e 100644
--- a/server/app/goauto/purchase/batch_test.go
+++ b/server/app/goauto/purchase/batch_test.go
@@ -44,6 +44,27 @@ func TestBatchPreviewUsesPDDPriceAndExplainsIneligibleRows(t *testing.T) {
 	}
 }
 
+func TestSybSpecsTrustedOnlyBlocksFailedOrEmptyExtraction(t *testing.T) {
+	tests := []struct {
+		name  string
+		syb   models.SYBProduct
+		trust bool
+	}{
+		{"success", models.SYBProduct{ParseStatus: models.SYBParseStatusSuccess, TargetColor: "黑色", TargetSize: "XL"}, true},
+		{"uncertain with color", models.SYBProduct{ParseStatus: models.SYBParseStatusUncertain, TargetColor: "套装"}, true},
+		{"uncertain with size", models.SYBProduct{ParseStatus: models.SYBParseStatusUncertain, TargetSize: "均码"}, true},
+		{"failed with values", models.SYBProduct{ParseStatus: models.SYBParseStatusFailed, TargetColor: "黑色"}, false},
+		{"uncertain without values", models.SYBProduct{ParseStatus: models.SYBParseStatusUncertain}, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := sybSpecsTrusted(tt.syb); got != tt.trust {
+				t.Fatalf("sybSpecsTrusted=%v, want %v", got, tt.trust)
+			}
+		})
+	}
+}
+
 func TestBatchPreviewExposesIndependentCollectionEligibility(t *testing.T) {
 	db := testDB(t)
 	fixture := seed(t, db, liveCaps(), true)