*{margin:0px; border:0px; padding:0px;}
.layout{ width:1200px; margin:0 auto; position:relative;}
body{ font-family: "source-han-sans-simplified-c","sans-serif";font-size:14px; background-color:#fff;}
a{text-decoration:none;}
li{list-style-type:none;}
.fl{ float:left;}
.fr{ float:right;}
.clear{ clear:both; zoom:1;}
.layout1{ width:1200px; margin:0 auto; position:relative;}
.layout2{ width:73.958%; margin:auto;}
.mtdiv{
	width:1212px;
	text-align:center;
	margin:36px auto;
}
.firstli{
	padding-right:3.5%;
	padding-top:3.5%
}
.firstli:nth-child(3n){
	padding-right:0;
}
.mtbottm{
	width:1212px;
	margin:0 auto;
	text-align:left
}
.chipdiv .chipli{
	margin-top:24px;
	margin-bottom:24px;
	margin-right:4%;
	width:368px;
	height:248px;
}

.mtdiv .chip-category{
	width:370px
}
.contenspan{
	width:60%;
	display:inline-block;
	text-align:left;
}
.contenimg{
	display:none;
}

@media screen and (min-width:1100px) and (max-width:1400px){
	.mtbottm,.mtdiv,.layout{
		width:89%;
	}
	.mali{
		width:92.2%;
	}
	.mtdiv .chip-category{
		width:340px;
	}
	.chipdiv .chipli{
		width:368px;
		margin-right:4%;
	}
	
}
/* 768之后变俩屏了 */
@media screen and (min-width:769px) and (max-width:1400px){
	.firstli:nth-child(3n){
		padding-right:0!important;
	}
	.chipdiv .chipli:nth-child(3n){
		margin-right:0!important;
	}
}
@media screen and (min-width: 640px) and (max-width: 1099px){
	.mtbottm,.mtdiv,.layout{
		width:92%;
	}
	.mali{
		width:95.2%;
	}
	.mtdiv .chip-category{
		width:266px;
	}
	.chipdiv .chipli{
		width:264px;
		margin-right:4%;
	}
}
@media screen and (min-width:961px) and (max-width: 1099px){
	.mtdiv .chip-category{
		width:310px;
	}
	.chipdiv .chipli{
		/**width:308px!important;**/
		margin-right:3.5%;
	}
	.mfirst ul li{
		padding-right:3.2%;
	}
}
@media screen and (max-width:640px) {
	.mtdiv{
		width:88%;
	}
	.contact{
		width:88%;
		margin:0 auto;
	}
	.mtdiv ul .firstli{
		padding-right:0;
		margin:0 auto;
	}
	.mtbottm{
		width:88%;
	}
	.chipdiv .chipli{
		width:90%;
		margin:12px auto !important;
	}
	/*,.mt-content**/
	.ptitle{
		padding-left:6%
	}
	.ship .gx a{
		width:100%!important;
	}
	.mtdiv .chip-category{
		width:90%;
		margin:0 auto;
	}
	.contentgs img{
		display:none !important;
	}
	.contenspan{
		width:100%
	}
	.contenimg{
		display:inline-block;
		width:40%;
		object-fit:conver;
	}
	.divtd .content{
		flex-basis:100%!important;
	} 
}

.chipdiv .chipli:nth-child(3n){
	margin-right:0
}