html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  min-height: 100%;
  font-size: 16px;
  font-family: "Microsoft Yahei", 宋体, arial;
  /* background-color: #f4fdee; */
}

.fl {
  float: left;
}
.fr {
  float: right;
}
.clearfix:after{
  display: block;
  content: "";
  clear: both
}
.warn{
  color: red;
}
.hide{
  display: none
}
.show{
  display: block;
}
:root{
  --main-color: #980000;
  --main-color-rgb: 152 0 0;
  --main-color-rgb1: 152, 0, 0;
  --link-color: blue;
}