@media all and (max-width:1700px) and (min-width:1500px)
{
.nav {
	float: right; display: inline-block;
}
.nav ul {
	margin-right: 30px;
}
.lisnj {
	margin-left: 30px;
}
.nav ul li {
	margin-right: 20px;
}
}
@media all and (max-width:1500px) and (min-width:1280px)
{
.nav {
	float: right; display: inline-block;
}
.nav ul {
	margin-right: 10px;
}
.lisnj {
	margin-left: 10px;
}
.nav ul li {
	margin-right: 10px;
}
}
@media all and (max-width:1400px) and (min-width:1280px)
{
.sousuo input[type=text] {
	width: 120px; height: 26px;
}
.sousuo font {
	top: 3px; right: 10px; color: white; font-size: 19px; display: block; position: absolute; cursor: pointer;
}
.lisnj span {
	font-size: 20px;
}
}
@media all and (max-width:1920px) and (min-width:1280px)
{
.moblie_head {
	display: none;
}
.a_txt {
	display: none;
}
}
@media all and (max-width:800px)
{
header {
	display: none;
}
}