Casual, jeans and sweatpants are ok. Leisure and jeans suggest that the trouser legs should not be too long. If it is long, it can be pulled to the position of the shoe mouth. Sweaters suggest that pants be put away and shoes should not be covered. If the shorts are short, sports and leisure are ok, but they can be a little looser. The shorts of jeans are not nice.
Pant color: casual khaki, denim as long as it is not white, sports black or gray. If there is color difference, you can stretch your trouser legs to highlight your shoes.