1px边框过粗解决方案

将容器宽高设为原宽度的两倍，然后缩小50%；边框宽度变为0.5px。

.wsyyt_info .main-account-label {
    position: relative;
    display: inline-flex;
    height: 3.2rem;
    width: 3.2rem;
    border: 1px solid #3381E3;
    border-radius: .6rem;
    -webkit-transform: scale(0.5, 0.5);
    transform: scale(0.5, 0.5);
    transform-origin: top left;
    color: #3381E3;
    justify-content: center;
    align-items: center;
    top: 0.9rem;
    margin-left: 1.25rem;
}