效果

class

.more-cls {
    width: auto;
    height: 30px;
    background: #00294d;
    margin-top: 12px;
    padding: 6px 10px;
    font-family: PingFangSC-Regular;
    font-weight: 400;
    font-size: 12px;
    color: #ffffff;
    letter-spacing: 0;

    border: 2px solid transparent;
    border-radius: 16px;
    background-clip: padding-box, border-box;
    background-origin: padding-box, border-box;
    background-image: linear-gradient(to bottom, #00294d, #00294d),
      linear-gradient(180deg, #0363b9 60%, transparent);
  }