.p-list--eigyositsu{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.p-list--eigyositsu .c-list__item:nth-of-type(2n-1){
    flex-basis: 50%;
}
.p-list--eigyositsu .c-list__item:nth-of-type(2n){
    flex-basis: 46%;
}
@media only screen and (max-width: 767.9px) {
    .p-list--eigyositsu{
        display: block;
    }
}