.wrapper{
	width: 1400px;
	margin: 0 auto;
}

.head{
	padding-top: 30px;
	text-align: center;
}
.head h1{
	position: relative;
	font-size: 50px;
	font-family: '迷你简小标宋';
	color: #000000;
}
.head p{
	font-size: 22px;
	font-family: '迷你简小标宋';
	color: #232323;}
.head1 h1{color: #000;}
.head h1 span{
	color: #500000;
}

.head .hp{
    width: 336px;
    margin: 0 auto;
    margin-top: 30px;
	background-color: #000000;
	color: #fff;
}

.tell {
    width: 35%;
    margin: 75px auto;
}
.tell img {
    width: 100%;
}

/*banner*/
.w-banner{
	width: 100%;
}
.w-banner img{
	display: block;
	width: 100%;
}

/*section1*/
.section1{margin-top: 60px;}
.section1-content{
	width: 96%;
	margin: 40px auto;
}
.section1-content img{
	display: block;
	width: 100%;
}

/*section2*/
.section2{
	width: 100%;
	margin-top: 100px;
	background-color: #fff8f8;
}
.section2-content{
	width: 96%;
	margin: 80px auto;
}
.section2-content img{
	display: block;
	width: 100%;
}

.section2-item{
	width: 20%;
	float: left;
	margin-left: 4%;
	text-align: center;
	box-sizing: border-box;
}
.item-head{
	width: 100%;
	text-align: center;
	position: relative;
}
.item-head img{
	display: block;
	width: 100%;
}
.item-head h3{
	position: absolute;
    top: 36%;
    left: 0;
    padding: 0 56px;
    font-size: 42px;
    font-weight: 500;
    color: #000;
}
.section2-item p{
	font-size: 24px;
    margin-top: 30px;
}

/*section3*/
.section3{
	width: 100%;
	margin-top: 100px;
}
.section3-content{
	width: 96%;
	margin: 68px auto;
}
.section3-content img{
	display: block;
	width: 100%;
}

/*section4*/
.section4-content{
	margin-top: 40px;
}
.section4-item{
	width: 28%;
	height: 310px;
	float: left;
	margin-left: 4%;
	margin-top: 20px;
	margin-bottom: 30px;
	overflow: hidden;
}
.section4-img{
	width: 100%;
}
.section4-img img{
	display: block;
	width: 100%;
}
.section4-item p{
	margin-top: 5px;
    font-size: 22px;
    font-family: '晴圆等宽';
    background-color: #1b1b1b;
    color: #fff;
}

.video-box-img{
	width: 100%;
	height: 238px;
	position: relative;}
.video-box-img img {
    display: block;
    cursor: pointer;
    width: 100%;
    height: 100%;
    transition: all 0.6s;
    -webkit-transition: all 0.6s;

}
.video-box-img .bofang {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 64px;
    height: 64px;
    margin-left: -32px;
    margin-top: -32px;
}
.video-box-img .bofang img {
    width: 100%;
   opacity:0.3;
}


@media screen and (max-width: 1680px){
	.wrapper{width: 1300px;}

	.item-head h3{font-size: 36px;}
	.section2-item p{font-size: 21px;}

	.section4-item p{font-size: 20px;}

	.section4-item{height: 258px;}

}

@media screen and (max-width: 1600px){
	.wrapper{width: 1200px;}

	.head h1 {
    	font-size: 42px;}
    .item-head h3 {
	    font-size: 28px;
	}
	.section2-item p {
	    font-size: 18px;
	}
	.section4-item p {
	    font-size: 18px;
	}
	.section4-item {
	    height: 238px;
	}

}

@media screen and (max-width: 1440px){
	.wrapper{width: 1100px;}
	
	.head h1 {
	    font-size: 40px;
	}
	.section1 {
	    margin-top: 45px;
	}
	.section2 {
	    margin-top: 80px;
	}
	.item-head h3 {
	    font-size: 26px;
	}
	.section2-item p {
	    font-size: 16px;
	}
	.section3 {
	    margin-top: 80px;
	}
	.section4-item p {
	    font-size: 17px;
	}
	.section4-item {
	    height: 218px;
	}

}

@media screen and (max-width: 1400px){
	.wrapper{width: 980px;}

	.head h1 {
	    font-size: 36px;
	}

	.section2 {
	    margin-top: 68px;
	}
	.item-head h3 {
	    font-size: 21px;
	}
	.section3 {
	    margin-top: 68px;
	}
	.section4-item p {
	    font-size: 16px;
	}
	.section4-item {
	    height: 214px;
	    margin-bottom: 5px;
	}
	
}