@charset "utf-8";
.id_str{
	top: 0;
}
.pro1_box{
	padding-bottom: 80px;
}
.product_page{
	padding-bottom: 170px;
}
.i3_menu{
	padding: 76px 0 100px 0;
}
.i3_menu_nav{
	font-size: 30px;
	cursor: pointer;
	position: relative;
}
.i3_menu_nav.on,
.i3_menu_nav:hover{
	font-weight: bold;
	color:#203481;
}
.i3_menu_nav:after{
	content: "";
	bottom: -5px;
	width: 0;
	left: 20%;
	position: absolute;
	height: 3px;
	background: #203481;
	-ms-transition: all 0.3s;
	-o-transition: all 0.3s;
	-moz-transition: all 0.3s;
	-webkit-transition: all 0.3s;
	transition: all 0.3s;
}
.i3_menu_nav.on:after,
.i3_menu_nav:hover:after{
	width: 60%;
}
.pro1_con{
	width: 100%;
	font-size: 0;
}
.pro1_nav{
	width: calc((100% - 100px) / 3);
	margin-right: 50px;
	display: inline-block;
}
.pro1_nav:nth-child(3n){
	margin-right: 0;
}
.pro1_nav .i3_img{
	height: 450px;
	overflow: hidden;
	position: relative;
  	box-shadow: 0px 10px 38px 2px rgba(151, 148, 148, 0.2);
}
.pro1_nav .pro1_title{
	text-align: center;
	line-height: 75px;
	font-size: 24px;
}
.pro1_nav .i3_img .i3_gray{
	position: absolute;
	left: 0;
	top: 100%;
	z-index: 100;
	background: rgba(0,0,0,0.5);
	width: 100%;
	height: 100%;
	color:#fff;
	text-align: center;
	-ms-transition: all 0.5s;
	-o-transition: all 0.5s;
	-moz-transition: all 0.5s;
	-webkit-transition: all 0.5s;
	transition: all 0.5s;
}
.pro1_nav .i3_img .i3_gray .title{
	font-size: 24px;
}
.pro1_nav .i3_img .i3_gray .subtitle{
	font-size: 20px;
}
.pro1_nav .i3_img .i3_gray .line{
	width: 135px;
	height: 1px;
	background: #fff;
	margin:40px auto;
}
.pro1_nav .i3_img:hover .i3_gray{
	top: 0;
}
.pro1_nav .i3_img .img{
	width: 100%;
}
.pro1_nav .i3_more{
	font-size: 18px;
	padding-top: 20px;
}
.pro1_nav .i3_more .txt{
	margin-right: 5px;
}
.pro1_nav .i3_more img{
	width: 19px;
}
/*响应式适配*/

@media screen and (max-width: 1861px) {
	
}
@media screen and (max-width: 1681px) {
	.i3_menu_nav{
		font-size: 26px;
	}
	.pro1_nav .i3_img{
		height: 366px;
	}
}
@media screen and (max-width: 1450px) {
	.i3_menu_nav{
		font-size: 20px;
	}
	.pro1_nav .i3_img{
		height: 330px;
	}
}
@media screen and (max-width: 1335px) {
	.pro1_nav .i3_img{
		height: 310px;
	}
}
@media screen and (max-width: 1200px) {
	
}
@media screen and (max-width: 1100px) {

}
@media screen and (max-width: 1000px) {
	
}
@media screen and (max-width: 768px) {
	.id_str{
		top: 0;
	}
	.i3_menu{
		padding: 15px 0;
		margin: 0;
		white-space: nowrap;
		display: block;
		overflow-x: auto;
		overflow: -moz-scrollbars-none;
	 	-ms-overflow-style: none; 
	}
	.i3_menu::-webkit-scrollbar { 
		width: 0;
	}
	.i3_menu_nav{
		font-size: 14px;
		display: inline-block;
		margin-right: 20px;
	}
	.i3_menu_nav:focus{
		background: transparent;
	}
	.i3_menu_nav:after{
		height: 2px;
	}
	.pro1_nav{
		display: block;
		width: 100%;
	}
	.pro1_nav .i3_img{
		height: 300px;
	}
	.pro1_nav .pro1_title {
	    line-height: 50px;
	    font-size: 16px;
	}
	.pro1_box{
		padding-bottom: 0;
	}
	.product_page {
	    padding-bottom: 40px;
	}
}
@media screen and (max-width: 414px) {
	
}