.bx-system-auth-form form {
    position: relative;
}

.bx-system-auth-form form.loading:before {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    z-index: 5;
    opacity: 0.8;
}

.bx-system-auth-form form.loading::after {
    content: '';
    display: block;
    position: absolute;
    width: 32px;
    height: 32px;
    border: 6px solid rgb(0 87 188 / 25%);
    border-top-color: #0057BC;
    border-radius: 50%;
    animation: systemAuthLoading 1s linear infinite;
    top: 50%;
    left: 50%;
    margin-top: -16px;
    margin-left: -16px;
    z-index: 10;
}

@keyframes systemAuthLoading {
    0% {
        transform: rotate(0);
    }
    100% {
        transform: rotate(360deg);
    }
}