.tab {
    display: flex;
}
.tab .tab-item {
    background: #F4F8FE;
    border: 2px solid #D6E6FC;
    border-radius: 6rpx;
    flex: 1;
    padding: 25rpx 20rpx;
    font-size: 30rpx;
    font-weight: 500;
    color: #999999;
    margin: 0 15rpx 30rpx;
    display: flex;
    align-items: center;
    justify-content: center;
}
.tab .tab-item.cur {
    color: #3A80E7;
    position: relative;
}

.tab .tab-item.noBg {
    background: none!important;
    border: none !important;
    margin: 0 0rpx 30rpx;
}
.cur-img {
    display: none;
}
.tab .tab-item.cur:before {
    content: '';
    display: block;
    height: 5rpx;
    width: 100%;
    background: #3A80E7;
    position: absolute;
    bottom: 0;
    left: 0;
}
.tab .tab-item.cur .cur-img {
    display: block;
    position: absolute;
    bottom: -8rpx;
    left: calc(50% - 6rpx);
}