@charset "utf-8";
* {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

img {
  display: block;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

body {
  font-family: "微软雅黑";
}

#header .h-top::after, #header nav ul::after, #product ul::after, #case ul::after, #footer .f-box::after, #content .c-top::after, #content .c-xia::after, #content .y-xia::after, #news .n-left div::after, #news .n-content::after {
  content: "";
  display: block;
  clear: both;
}