/* CSS Document */
.header{
	position: fixed;
	top: 33;
	left: 0;
	z-index: 25;
	width: 100%;
	height: 72px;
	background: #fff;

}

/*全局*/
* {
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
.clear {
  clear: both;
  visibility: hidden;
}
body {
  color: #696969;
  font-size: 13px;
  background: #fff;
  font-family: "microsoft yahei", arial;
}
body img {
  border: none;
}
body a {
  text-decoration: none;
  color: #555;
}
body ul,
body ol {
  list-style: none;
}
body em {
  font-style: normal;
}
/*header*/

.top_all .top {
  width: 800px;
  margin: 0 auto;
  height: 72px;
}

.top_all .top .nav {
  width: auto;
  float: right;
  height: 72px;
}
.top_all .top .nav li {
  width: auto;
  float: left;
  margin: 25px 0;
  height: 20px;
  position: relative;
}
.top_all .top .nav li a {
  display: block;
  width: auto;
  height: 100%;
  text-align: center;
  color: #999;
  font-size: 16px;
  position: relative;
  float: left;
  line-height: 20px;
  margin: 0px 17px;
}
.top_all .top .nav li a:before {
  width: 90%;
  height: 2px;
  background: #870000;
  content: '';
  position: absolute;
  bottom: 0px;
  margin: 0 5%;
  left: 0;
  filter: alpha(opacity=0); /* IE */
  -moz-opacity: 0; /* 老版Mozilla */
  -khtml-opacity: 0; /* 老版Safari */
  opacity: 0;
  transition: all 0.3s;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
}
.top_all .top .nav li a:hover,
.top_all .top .nav li a.on {
  color: #000;
}
.top_all .top .nav li a:hover:before,
.top_all .top .nav li a.on:before {
  filter: alpha(opacity=100); /* IE */
  -moz-opacity: 1; /* 老版Mozilla */
  -khtml-opacity: 1; /* 老版Safari */
  opacity: 1;
  bottom: -10px;

}
.top_all .top .nav li:after {
  content: '';
  width: 1px;
  height: 13px;
  position: absolute;
  left: 0;
  top: 5px;
  background: #870000;
}
.top_all .top .nav li:first-child:after {
  content: none;
}