/* 响应式代码 */
@media only screen and (max-width: 1700px) {
    .nav ul>li p{
		font-size:15px;
	}
	.w1600{
		width:90%;
	}
}

@media only screen and (max-width: 1600px) {
	.nav ul>li h2{
		font-size:18px;
	}
	 .w1500{
		width: 90%;
	}
}

@media only screen and (max-width: 1550px) {
   
	.header.fixed-nav .logo {
	    width: 18%;
	}
	.header.fixed-nav .nav {
	    margin-left: 2%;
	}

	.footer-logo {
		width: 70%;
	}
}

@media only screen and (max-width: 1450px) {
    .nav ul>li h2{
		font-size: 17px;
	}
	.nav ul>li p{
		font-size: 14px;
	}
	.nav li ol li a{
		font-size:14px;
	}
	.nav ul>li{
		padding: 0 5px;
	}
}
@media only screen and (max-width: 1400px) {
	.header {
        padding: 30px 20px;
    }
	.nav ul>li a{
		font-size:17px;
	}
	.nav-column a{
		font-size:12px;
	}
}
    
@media only screen and (max-width: 1300px) {
    .header.fixed-nav .nav {
        margin-top: 15px;;
    }
	.header.fixed-nav .search-btn {
	    margin-top: 10px;
	}
}

@media only screen and (max-width: 1200px) {
    .menu {
        width: 28px;
        height: 21px;
        display: block;
        right: 20px;
        top: 42px;
        margin: auto;
        overflow: hidden;
        z-index: 999999999;
        cursor: pointer;
        position: fixed;
    }

    .menu span {
        float: left;
        width: 100%;
        background: #000;
        transition: all 0.4s ease;
        margin-top: 7px;
        height: 2px;
    }

    .menu span:first-child {
        margin-top: 0;
    }

    .menu.open span:nth-child(1) {
        transform: rotate(45deg);
        margin-top: 10px;
    }

    .menu.open span:nth-child(2) {
        transform: rotate(-45deg);
        margin-top: -2px;
    }

    .menu.open span:nth-child(3) {
        opacity: 0;
    }
	.w1600{
		width:100%;
	}
    .header,.header.fixed-nav {
        width: 100%;
        background: #fff;
        position: fixed;
        z-index: 9999999;
        height: 100px;
        padding: 0;
        top: 0;
        padding: 0 3.5%;
        box-shadow: 0 0 5px 0 rgba(0,0,0,0.3);
    }

    .header .logo,.header.fixed-nav .logo {
        width: 35%;
        line-height: 100px;
    }
	.search-btn{
		display:block;
		position: absolute;
		right: 30px;
		cursor: pointer;
	}
    .nav {
        position: fixed;
        transition: 0.3s ease;
        right: -100vw;
        top: 100px;
        left: auto;
        width: 420px;
        height: calc(100vh - 100px);
        z-index: -99;
        background: #fff;
        margin: 0;
        float: none;
        border-top: 1px solid rgba(0,0,0,0.1);
        margin: 0 !important;
    }

    .nav.active {
        right: 0;
        z-index: 99999999;
    }

    .nav ul>li::before {
        display: none;
    }

    .nav ul>li>a {
        font-size: 18px;
        font-weight: bold;
        width: 80%;
        text-indent: 20px;
        position: relative;
        display: block;
        color: #333;
        line-height: 60px;
    }

    .nav .w1500 {
        border-top: 1px solid #c4c4c4;
        width: 100%;
        height: 100%;
        padding: 0;
    }

    .nav .ul2 {
        width: 100%;
        overflow: auto;
        height: 100%;
    }

    .nav ul li ol {
        width: 100%;
        left: 0;
        position: relative;
        top: 0;
        background: none;
        text-align: left;
        padding: 0;
        opacity: 1;
        display: none;
        /* background: #eaf5ff; */
    }

    .nav ul>li a::after {
        display: none;
    }

    .nav ul li ol>li {
        text-align: left;
        border: 0;
        line-height: 50px;
        position: relative;
        text-indent: 20px;
        border-top: 1px solid rgba(0,0,0,0.1);
        height: auto;
    }

    .nav li ol li:hover a {
        color: #fff;
    }

    .nav ul ol li a {
        font-size: 17px;
        color: #333;
        display: block;
    }

    .nav ul li i {
        position: absolute;
        right: 0;
        width: 15%;
        height: 60px;
        top: 0;
        background: url(../img/jia.png) no-repeat center center;
        margin: auto;
        z-index: 10;
        cursor: pointer;
        transition: all .2s ease;
        -moz-transition: all .2s ease;
        -o-transition: all .2s ease;
        -webkit-transition: all .2s ease;
    }

    .nav ul li ol li i {
        height: 50px;
    }

    .nav ul li i.on {
        background: url(../img/jian.png) no-repeat center center;
    }

    .nav ul>li {
        float: none;
        width: 100%;
        height: auto;
        line-height: 60px;
        position: relative;
        border-bottom: 1px solid rgba(0,0,0,0.1);
        text-align: left;
        padding: 0;
        margin: 0;
    }

    .nav ul>li::before {
        display: none;
    }

    .nav li.active>a {
        color: #fff;
    }
	.search{
		display: none;
	}
	.footer-nav{
		display:none;
	}
	.copyright-bar .w1500{
		display:block;
		text-align: center;
	}
	.footer-logo{
		display:none;
	}
	.back-to-top{
		display: none !important;
	}
	.copyright-bar{
		padding:20px 0;
	}
}
@media only screen and (max-width: 1050px) {
	
}

@media only screen and (max-width: 960px) {
	.search {
        width: 35%;
    }
	.header .logo, .header.fixed-nav .logo {
        width: 50%;
        /* line-height: 60px; */
    }
	.search-box .serBox {
        width: 60%;
    }
}

@media only screen and (max-width: 840px) {
  
}

@media only screen and (max-width: 768px) {
    .w1500 {
        width: 100%;
		padding: 0 3.5%;
    }
	.search {
        margin-right:50px;
    }
	.ewm img{
		max-width:120px;
	}

}

@media only screen and (max-width: 640px) {
.header .logo, .header.fixed-nav .logo {
        line-height: 60px;
    }
.nav.active{top:60px;}
.menu{
    top: 20px;
}
	.search {
        width: 45%;
        /* margin-right: 20px; */
        /* display: none; */
    }
	.search-btn{
		right:50px;
	}
	.header, .header.fixed-nav{
	height: 60px;
	}
	.header::before{
		display:none;
	}
	.banner{
		margin-top:100px;
	}
	.search-box .serBox {
        width: 65%;
    }
	.search-box .text {
        height: 48px;
        line-height: 48px;
        padding-right: 105px;
    }
	.search-box .btn {
        font-size: 15px;
        height: 48px;
        line-height: 48px;
        width: 100px;
    }
	.copyright-right p, .copyright-right a {
	    font-size: 12px;
	    opacity: 0.5;
	}
}

@media only screen and (max-width: 480px) {
    .header, .header.fixed-nav {
        line-height: 80px;
        height: 80px;
    }

    .nav {
        top: 80px;
        height: calc(100vh - 80px);
        width: 100%;
    }

    .menu {
        top: 30px;
    }

	.search {
        width: 50%;
        margin-top: 0px;
    }
	.search .submit{
		top: 17px;
	}
	.header .logo, .header.fixed-nav .logo {
        width: 70%;
        line-height: 80px;
    }
	.search-btn, .header.fixed-nav .search-btn {
        margin-top: 0px;
    }
	.banner {
        margin-top: 80px;
    }
	.search-box .serBox {
        width: 85%;
    }
}