 .ps-collapse {
     width: 100%;
     box-sizing: border-box;
 }

 .ps-collapse-item {
     margin-top: 24px;
     width: 100%;
     box-sizing: border-box;
 }

 .ps-collapse-item--head {
     display: flex;
     flex-direction: row;
     justify-content: space-between;
     align-items: center;
     padding-left: 8px;
     padding-right: 8px;
     width: 100%;
     height: 56px;
     background: #F4FAFF;
     border-radius: 8px;
     box-sizing: border-box;
     cursor: pointer;
 }

 .ps-collapse-item--head-r i {
     font-size: 16px;
     font-weight: 600;
     color: #999999;
 }
 .ps-collapse-item--head-r i.el-icon-arrow-down {
    transform: rotate(-90deg);
}

 .ps-collapse-item--head-r.active i.el-icon-arrow-down {
     transform: rotate(0);
 }

 .ps-collapse-item--head-l {
     color: #1B293D;
     font-size: 14px;
 }

 .ps-collapse-item--head-l {
     color: #1B293D;
     font-size: 14px;
 }

 .ps-collapse-item--body {
     padding: 0 8px 8px 8px;
     width: 100%;
     background: #F4FAFF;
     overflow: hidden;
     box-sizing: border-box;
 }