@function vmin($rpx) {
    @return #{$rpx * 100 / 750}vmin;
}

.setting-modal{
    position: fixed;
    z-index: 999;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.4);
    display: flex;
    justify-content: center;
    align-items: center;
}
.instructor {
    position: absolute;
    top: vmin(112);
    left: vmin(937);
    color: #fff;
    border-radius: 8rpx;
    background-color: #1472FF;
    padding: vmin(24) vmin(32);
    font-size: vmin(28);
    font-weight: 400;
    line-height: vmin(44);
    box-shadow: 0 -4rpx vmin(80) 0 rgba(51,51,51,0.2);
}
.instructor:after {
    content: '';
    position: absolute;
    top: vmin(-30);
    right: vmin(60);
    border: vmin(16) solid #1472FF;
    border-color: transparent;
    border-bottom-color: #1472FF;
}
.instructor .share-tip {
    width: vmin(624);
}