效果如图:

css
.border-box {
width: 150px;
height: 300px;
box-shadow: 0px 2px 14px 0px rgba(0, 0, 0, 0.04);
border: 2px solid transparent;
border-radius: 20px;
background-clip: padding-box, border-box;
background-origin: padding-box, border-box;
background-image: linear-gradient(to right, #fff, #fff),
linear-gradient(
180deg,
rgba(255, 82, 119, 1) 0%,
rgba(167, 117, 255, 1) 100%
);
}