/*banner */
.index_main{
	background: #f7f7f7;
}
.index_main .section1{
	position: relative;
}
.index_main .section1 .index_banner .item{
	background-size: cover;
	-webkit-background-size:cover;
	background-position: center;
	background-repeat: no-repeat;
	height:450px;
	position: relative;
}

.index_main .section1 .index_banner .items{
	background-size: cover;
	background-position: center center;
	background-repeat: no-repeat;
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
}
.index_main .section1 .index_banner .item .inner .block_txt{
	position: absolute;
	top: 40%;
	left: 20%;
	width: 40%;
}
.index_main .section1 .index_banner .item .inner .block_txt h2{
	color: #fff;
	font-size: 34px;
	padding: 0;
	margin-top: 0;
	font-weight: 600;
}
.index_main .section1 .index_banner .item .inner .block_txt h4{
	color:#fff;
	display: inline-block;
	font-size: 20px;
}
.index_main .section1 .index_banner .item .inner .block_txt a:hover{
	cursor: pointer;
}

.index_main .section1 .slick_txt{
	width:10%;
	height: 100%;
	background-color: transparent;
	transition: all 500ms ease;
	-webkit-transition:all 500ms ease; 
	background-repeat: no-repeat;
	position: absolute;
	top: 0;
	font-size: 0;
	outline: none;
	border:0;
}
.index_main .section1 .left{
	left: 0;
}
.index_main .section1 .right{
	right:0;
}
.index_main .section1 .slick_txt:hover .slick_arrow{
	opacity: 1;
	visibility: visible;
}
.index_main .section1 .slick_txt .slick_arrow{
	width: 20px;
	height: 36px;
	background-repeat: no-repeat;
	background-position: center;
	margin-top: -18px;
	position: absolute;
	top: 50%;
	cursor: pointer;
	transition: all 500ms ease;
	-webkit-transition:all 500ms ease;
	opacity: 0;
	visibility: hidden;
}
.index_main .section1 .slick_txt .prev{
	background-image:url(../image/ban_prev.png);
	left:60px;
}
.index_main .section1 .slick_txt .next{
	background-image:url(../image/ban_next.png);
	right:60px;
}
.index_main .section1 .slick_txt .prev:hover{
	background-image:url(../image/ban_prev_hover.png);
}
.index_main .section1 .slick_txt .next:hover{
	background-image:url(../image/ban_next_hover.png);
}
.index_main .section1 .number{
	position: absolute;
	bottom:5%;
	left: 50%;
	padding-bottom: 5px;
	border-bottom: 1px solid rgba(255,255,255,0.2);
	display: table;
	padding: 0 20px;
	width: auto;
	text-align: center;
	transform: translateX(-50%);
	-webkit-transform: translateX(-50%);
}
.index_main .section1 .number span{
	font-size: 14px;
	color: #fff;
	margin-right:100px;
	display: inline-block;
	cursor: pointer;
	position: relative;
	transition: all 500ms ease;
	-webkit-transition:all 500ms ease;
}
.index_main .section1 .number span:last-child{
	margin-right: 0;
}
.index_main .section1 .number span:after{
	content: "";
	display: inline-block;
	width: 0;
	height: 2px;
	background: #fff;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
	-webkit-transform: translateX(-50%);
	bottom:-20px;
	opacity: 0;
	visibility: hidden;
	transition: all 500ms ease;
	-webkit-transition:all 500ms ease;
}
.index_main .section1 .number span.active:after{
	width: 100%;
	opacity: 1;
	visibility: visible;
}

.index_main .section2{
	background: #f5f5f5;
}
.index_main .section2 h3{
	text-align: center;
}
.index_main .section3{
	width: 100%;
	height: 100%;
	background: url(../img/3.jpg) no-repeat;
	background-size: 100% 100%;
}
.index_main .section3 h3{
	text-align: center;
}
.index_main .section4{
	background: #f5f5f5;
}
.index_main .section4 h3{
	text-align: center;
}

@media only screen and (max-width: 1600px){
	.index_main .section1 .index_banner .item{
		height: 350px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 18px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 30px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 20px;
	}
}
@media only screen and (max-width: 1440px){
	.index_main .section1 .index_banner .item{
		height: 330px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 18px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 30px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 18px;
		margin-top: 5px;
	}
}
@media only screen and (max-width: 1366px){
	.index_main .section1 .index_banner .item{
		height: 300px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 18px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 28px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 16px;
	}
	.index_main .section1 .index_banner .slick-arrow{
		background-size: auto 30px;
	}
}
@media only screen and (max-width: 1300px){

}
@media only screen and (max-width: 1199px){
	.index_main .section1 .index_banner .item{
		height: 300px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 18px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 22px;
		}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 14px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt{
		width: 70%;
	}
}
@media only screen and (max-width: 992px){
	.index_main .section1 .index_banner .item{
		height: 300px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt{
		left: 0;
		right:0;
		margin: 0 auto;
		padding: 0 20px;
		top: 30%;
	}
	.index_main .section1 .index_banner .slick-arrow{
		display: none !important;
	}
    .index_main .section1 .index_banner .slick-dots{
    	position: absolute;
    	bottom: 12px;
    }
    .index_main .section1 .index_banner .slick-dots li{
    	width: 12px;
    	height: 12px;
    	border-radius: 50%;
    	border:2px solid #fff;
    }
    .index_main .section1 .index_banner .slick-dots li button{
    	display: none;
    }
    .index_main .section1 .index_banner .slick-dots li.slick-active{
    	background: #fff;
    }
	.index_main .section1 .number{
		bottom: 12%;
		display: none;
	}
	.index_main .section1 .number span{
		margin-right: 22px;
	}
	.index_main .section1 .number span:after{
		bottom: -14px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt{
		width: 90%;
	}

}
@media only screen and (max-width: 767px){
	.index_main .section1 .index_banner .item{
		height: 220px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 12px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 18px;
	}
}
@media only screen and (max-width: 340px){
 
}
@media only screen and (max-width: 320px){
	
}