introduce
Unlocking menu fields requires skill.
1 1 level, unlock two vegetable markets with skill points, and you can make blue dishes.
At the level of 1- 10, at most 2 menu fields can be unlocked, and all green recipes can be unlocked.
1 1-20 The chef can unlock up to 4 menu fields and all blue menus.
2 1-30 can unlock up to 4 menu fields, which can unlock all purple recipes.