Update app.py

app.py

@@ -68,7 +68,7 @@ def load_text(path: str) -> str:
 # 書き換え（プロンプト同一）
 # =========================
 def rewrite_level(text: str, target_level: int) -> str:
-    level_to_flesch = {1: 90, 2: 70, 3: 55, 4: 40, 5: 25}
+    level_to_flesch = {1: 90, 2: 75, 3: 65, 4: 55, 5: 40}
     target_flesch = level_to_flesch[int(target_level)]
 
     prompt = f"""