diff --git a/.gitignore b/.gitignore
index 2f673a5..feb219e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ kali-2026.zip
 # 分卷产物 / init json (生成物)
 *.part*
 *.init.json
+.pytest_cache/
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..88c98dd
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,12 @@
+[project]
+name = "7z-encrypt"
+version = "0.1.0"
+description = "文件安全传输系统 - 客户端 (加密/分卷/元数据/传输)"
+requires-python = ">=3.11"
+dependencies = [
+    "cryptography>=50.0",
+]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+pythonpath = ["."]