/* ローディングアニメーション */
.spinner-box {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgb(241,243,244,0.5);
    visibility: hidden;
    opacity: 0;
}

.spinner-box.active {
    visibility: visible;
    opacity: 1;
}

.spinner-box .circle-border {
    width: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    border: 3px solid rgb(63,249,220);
    border-top: 3px solid transparent;
    animation: spin .8s linear 0s infinite;
}