diff --git a/internal/account/main_test.go b/internal/account/main_test.go
new file mode 100644
index 0000000..6d915d8
--- /dev/null
+++ b/internal/account/main_test.go
@@ -0,0 +1,66 @@
+package account_test
+
+import (
+	"context"
+	"crypto/rand"
+	"database/sql"
+	"encoding/hex"
+	"fmt"
+	"net/url"
+	"os"
+	"testing"
+
+	hub "git.ipao.vip/rogee/creator-hub/internal/environment"
+)
+
+// Account tests truncate their fixtures. They must never run in the configured
+// database schema; always initialize and destroy a separate schema first.
+func TestMain(m *testing.M) { os.Exit(runAccountTests(m)) }
+
+func runAccountTests(m *testing.M) (result int) {
+	databaseURL := os.Getenv("CREATORHUB_POSTGRES_TEST_URL")
+	if databaseURL == "" {
+		return m.Run()
+	}
+	fail := func(err error) int {
+		fmt.Fprintln(os.Stderr, "initialize isolated account test schema:", err)
+		return 1
+	}
+	parsed, err := url.Parse(databaseURL)
+	if err != nil {
+		return fail(err)
+	}
+	bytes := make([]byte, 8)
+	if _, err := rand.Read(bytes); err != nil {
+		return fail(err)
+	}
+	schema := "account_test_" + hex.EncodeToString(bytes)
+	db, err := sql.Open("pgx", databaseURL)
+	if err != nil {
+		return fail(err)
+	}
+	defer db.Close()
+	if _, err := db.Exec(`CREATE SCHEMA "` + schema + `"`); err != nil {
+		return fail(err)
+	}
+	defer func() {
+		if _, err := db.Exec(`DROP SCHEMA "` + schema + `" CASCADE`); err != nil {
+			fmt.Fprintln(os.Stderr, "cleanup isolated account test schema:", err)
+			result = 1
+		}
+	}()
+	query := parsed.Query()
+	query.Set("search_path", schema)
+	parsed.RawQuery = query.Encode()
+	store, err := hub.Open(context.Background(), parsed.String())
+	if err != nil {
+		return fail(err)
+	}
+	if err := store.Close(); err != nil {
+		return fail(err)
+	}
+	if err := os.Setenv("CREATORHUB_POSTGRES_TEST_URL", parsed.String()); err != nil {
+		return fail(err)
+	}
+	return m.Run()
+}
diff --git a/internal/account/store_test.go b/internal/account/store_test.go
index a3ca02c..7bf70d5 100644
--- a/internal/account/store_test.go
+++ b/internal/account/store_test.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/jackc/pgx/v5"
@@ -126,6 +127,20 @@ func applyHubMigrationsForPhaseATest(t *testing.T, store *Store) {
 	}
 }
 
+func resetAccountTestFixtures(t *testing.T, store *Store) {
+	t.Helper()
+	var schema string
+	if err := store.db.QueryRow(`SELECT current_schema()`).Scan(&schema); err != nil {
+		t.Fatal(err)
+	}
+	if !strings.HasPrefix(schema, "account_test_") {
+		t.Fatalf("refusing to clear non-test schema %q", schema)
+	}
+	if _, err := store.db.Exec(`TRUNCATE audit_event, network_exit, social_account, browser_env, gateway RESTART IDENTITY CASCADE`); err != nil {
+		t.Fatal(err)
+	}
+}
+
 func TestCreateAccountWithoutCookiesSkipsCredentialStore(t *testing.T) {
 	databaseURL := os.Getenv("CREATORHUB_POSTGRES_TEST_URL")
 	if databaseURL == "" {
@@ -138,11 +153,7 @@ func TestCreateAccountWithoutCookiesSkipsCredentialStore(t *testing.T) {
 	}
 	t.Cleanup(func() { _ = store.Close() })
 	applyHubMigrationsForPhaseATest(t, store)
-	if _, err := store.db.ExecContext(ctx, `
-		TRUNCATE audit_event, network_exit, social_account, browser_env,
-			gateway RESTART IDENTITY CASCADE`); err != nil {
-		t.Fatal(err)
-	}
+	resetAccountTestFixtures(t, store)
 	credentials := &testCredentialBridge{values: map[string]string{}}
 	account := Account{ID: "account-no-cookies", Name: "扫码账号", Platform: "douyin", PlatformAccountKey: "qr-login",
 		Tags: []string{}, Cookies: "",
@@ -168,11 +179,7 @@ func TestAccountCredentialCommitResult(t *testing.T) {
 		t.Fatal(err)
 	}
 	applyHubMigrationsForPhaseATest(t, store)
-	if _, err := store.db.ExecContext(ctx, `
-		TRUNCATE audit_event, network_exit, social_account, browser_env,
-			gateway RESTART IDENTITY CASCADE`); err != nil {
-		t.Fatal(err)
-	}
+	resetAccountTestFixtures(t, store)
 	credentials := &testCredentialBridge{values: map[string]string{}}
 	account := func(id, platformKey string) Account {
 		return Account{ID: id, Name: id, Platform: "douyin", PlatformAccountKey: platformKey, Tags: []string{}, Cookies: "sessionid=" + id,
@@ -240,11 +247,7 @@ func TestAccountStoreLifecycleAgainstPostgres(t *testing.T) {
 		t.Fatal(err)
 	}
 	t.Cleanup(func() { _ = store.Close() })
-	if _, err := store.db.ExecContext(ctx, `
-		TRUNCATE audit_event, network_exit, social_account, browser_env,
-			gateway RESTART IDENTITY CASCADE`); err != nil {
-		t.Fatal(err)
-	}
+	resetAccountTestFixtures(t, store)
 	credentials := &testCredentialBridge{values: map[string]string{}}
 	mustCreate := func(id, platformKey string) {
 		t.Helper()