@media screen and ( max-width:1300px ) {
	.nav,.foot-nav-r{
		display: none;
	}
	.nav ul li:nth-chilid(6){
		
	}
}
@media screen and ( max-width:640px ) {
	.header,.foot,.news-header-tip{
		display: none;
	}
	.news-txts{
		width: 100%;
		padding: 0 20px;
		box-sizing: border-box;
	}
	.news-header-tt{
		font-size: 27px;
		width: 100%;
		line-height: 40px;
		text-align: left;
	}
	.news-tips span:last-child,.news-keys{
		display: none;
	}
	#ptop2{
		padding-top: 470px;
	}
	.news-header{
		padding-bottom: 10px;
	}
	.news-cont{
		padding-top: 20px;
	}
}