:host {
  display: block;
  --hb-row-gutter: 0;
}

.hb-row {
  position: relative;
  box-sizing: border-box;
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--hb-row-gutter) / -2);
  margin-right: calc(var(--hb-row-gutter) / -2);
}

.hb-row--justify-start {
  justify-content: flex-start;
}

.hb-row--justify-end {
  justify-content: flex-end;
}

.hb-row--justify-center {
  justify-content: center;
}

.hb-row--justify-space-around {
  justify-content: space-around;
}

.hb-row--justify-space-between {
  justify-content: space-between;
}

.hb-row--justify-space-evenly {
  justify-content: space-evenly;
}

.hb-row--align-top {
  align-items: flex-start;
}

.hb-row--align-middle {
  align-items: center;
}

.hb-row--align-bottom {
  align-items: flex-end;
}

/* 子元素间距 */
::slotted(hb-layout) {
  padding-left: calc(var(--hb-row-gutter) / 2);
  padding-right: calc(var(--hb-row-gutter) / 2);
}

