.loading-pop-wrap {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 999; background: rgba(0,0,0,0.2); 
    .loading-pop-area { 
        position: relative; width: 100%; height: 100%; 
        > .loading {
            position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center;
            div { 
                width: 13px; height: 13px; margin: 15px 3px; background: var(--theme); border-radius: 50%; display: inline-block; 
                animation: loading 1.2s ease-in-out 0.1s infinite; 
                &:nth-child(2) { animation-delay: 0.3s; }
                &:nth-child(3) { animation-delay: 0.6s; }
            }
        }
    }
}
@keyframes loading { 
    0% { opacity: 1; transform: translate3d(0, 0px, 0); }
    50%{ opacity: 0.5; transform: translate3d(0, -10px, 0); }
    100% { opacity: 1; transform: translate3d(0, 0, 0); }
}