html{ scroll-behavior: smooth; }

/*
.pagetop {
    height: 50px;
    width: 50px;
    position: fixed;
    right: 30px;
    bottom: 30px;
    background: #fff;
    border: solid 2px #000;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;

    box-shadow: 0 4px 6px rgb(0 0 0 / 30%);
}

.pagetop__arrow {
    height: 10px;
    width: 10px;
    border-top: 3px solid #000;
    border-right: 3px solid #000;
    transform: translateY(20%) rotate(-45deg);
}

@media (hover: hover) and (pointer: fine) {
    .pagetop:hover, .pagetop:hover .pagetop__arrow {
        border-color: #3293e7;
    }
}
*/

.pagetop{
    display: block;
    width: 60px;
    height: 60px;
    box-sizing: border-box;
    background: #AAF;
    border: 1px solid #999;
    padding-top: 30px;
    text-align: center;
    letter-spacing: -1px;
    font-size: 85%;
    text-decoration: none;
    color: #333;
    opacity: 0.5;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
}

.pagetop::before{
    content: "";
    display: block;
    border-top: 2px solid #333;
    border-right: 2px solid #333;
    width: 25%;
    height: 25%;
    top: 25%;
    left: 0;
    right: 0;
    margin: auto;
    position: absolute;
    transform: rotate(-45deg);
}

.pagetop:hover{
    opacity: 1;
}
@media(max-width:750px){
    .pagetop{
        width: 40px;
        height: 40px;
        text-indent: -9999px;
        opacity: 1;
        border: none;
        background: none;
        bottom: 10px;
        right: 10px;
    }
    .pagetop::before{
        bottom: 0;
    }
}