input.custom-control-input {transition:outline 400ms;}
input.outline-focus {outline:2px solid red;}
input.outline-focus:focus {
    box-shadow: 0 0 0 0.2rem rgb(255 0 0 / 100%);
}

#member-join-step0 {}
#member-join-step0 .wrap {}
#member-join-step0 .wrap .d-block {padding-top:1.5rem; padding-bottom:1.5rem;}