platform-bi-web/main.css

.ant-collapse {
  border: none;
  border-radius: 0;
}
.ant-collapse .ant-collapse-item .ant-collapse-header {
  line-height: 14px;
  padding: 10px 0 10px 40px;
  color: rgba(0, 0, 0, 0.85);
  cursor: pointer;
  position: relative;
  -webkit-transition: all .3s;
  transition: all .3s;
}
.ant-collapse .ant-collapse-item .ant-collapse-header .arrow {
  line-height: 35px;
}
.ant-collapse-content > .ant-collapse-content-box {
  padding: 4px;
}
.ant-form-item {
  margin-bottom: 0;
}