&-item ::after{
position: absolute;
content: "";
bottom:0;
left: 16px;
right: 16px;
background: linear-gradient(to right, #d5eafc 50%, transparent 50%);
background-size: 5px 1px;
background-repeat: repeat-x;
background-position: 0% 100%;
height: 1px;
}
其他可以参考:
https://blog.csdn.net/hncu1990/article/details/118878493