.page-main {
  position: relative;
  overflow: hidden;
  background-color: $page-background-color;
}

.page-iframe {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background-color: $page-background-color; // iframe加载时遮住原始路由页面
}

.page-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: auto;
}

.page-header {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  height: $page-header-height;
  padding: $page-header-padding $page-view-margin $page-header-padding $page-view-margin;
  box-sizing: border-box;

  // 页头渲染时页面顶部margin为0
  & + .page-view {
    margin-top: 0 !important;
  }
}

.page-footer {
  height: $page-footer-height;
  padding: $page-view-margin;
  text-align: center;
  box-sizing: border-box;
}

.page-view {
  margin: $page-view-margin;
  flex: 1;
}