diff --git a/client/assets/fonts/NotoSansSC-Regular.ttf b/client/assets/fonts/NotoSansSC-Regular.ttf
index fc0fda9..088da51 100644
Binary files a/client/assets/fonts/NotoSansSC-Regular.ttf and b/client/assets/fonts/NotoSansSC-Regular.ttf differ
diff --git a/client/test/print_perf_test.dart b/client/test/print_perf_test.dart
new file mode 100644
index 0000000..c689973
--- /dev/null
+++ b/client/test/print_perf_test.dart
@@ -0,0 +1,26 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:flutter/services.dart';
+import 'package:pdf/widgets.dart' as pw;
+
+// 回归测试：打印用的中文字体必须是 TrueType(glyf) 轮廓。
+// 若误用 OpenType/CFF 字体（如 Noto 的 .otf），dart_pdf 渲染中文会抛
+// "This font does not support Unicode characters"，标签打印会在原生 onLayout
+// 回调里抛异常导致 Windows 打印卡死。此测试确保打印 PDF 能正常生成中文。
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  test('打印字体能渲染中文（防止退回 CFF 字体导致打印卡死）', () async {
+    final data = await rootBundle.load('assets/fonts/NotoSansSC-Regular.ttf');
+    final font = pw.Font.ttf(data);
+
+    final doc = pw.Document();
+    doc.addPage(pw.Page(
+      build: (_) => pw.Text('入库单 茅台飞天 53度 500ml 扫码溯源',
+          style: pw.TextStyle(font: font, fontSize: 12)),
+    ));
+
+    // 若字体是 CFF，会在此抛 Latin1/Unicode 异常。
+    final bytes = await doc.save();
+    expect(bytes.isNotEmpty, true);
+  });
+}