#member{}
#member h2{
    margin: 2em 0 0;
    font-size: 1rem;
    font-weight: 300;
}
#member .message{}

#member .caution{
    padding: 20px;
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 4px;
    line-height: 1.5;
    font-size: .875rem;
}
#member .caution > *{
    margin: 0;
}
#member ul.member_form{
    margin: 1em 0;
    padding: 20px;
    background: #fff;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
    border-radius: 8px;
    box-shadow: 0 0 4px rgba(0,0,0,.05);
    row-gap: 1rem;
}
#member ul.member_form li{}
#member ul.member_form li :is(input[type="text"],input[type="password"]){
    width: 100%;
    padding: 0.5em;
    display: block;
    border: 1px solid #ddd;
    border-radius: 4px;
    line-height: 1.5;
    font-size: .875rem;
}
#member ul.member_form li :is(input[type="text"],input[type="password"])::placeholder{
    color: #bbb;
}
#member ul.member_form li :is(input[type="text"],input[type="password"]):hover{
    border-color: #bbb;
    box-shadow: inset 2px 2px 2px rgba(0,0,0,.05);
}
#member .regist_submit{
    margin-top: 40px;
    text-align: center;
}
#member .regist_submit input[type="submit"]{
    padding: .5em 1em;
    background: linear-gradient(#4d90fe, #4787ee);
    border: 1px solid #3079ed;
    border-radius: 3px;
    display: inline-block;
    font-size: 1em;
    color: #fff;
}
#member .regist_submit input[type="submit"]:hover{
    background: linear-gradient(#4d90fe, #357ae8);
    border: 1px solid #2f5bb7;
}