body {
    height: 100%;
}

.container {
    position: fixed;
    top: 0;
    z-index: 99;
}

.container>nav {
    padding: 0 10%;
}

.container>nav>ul>li>a {
    color: #fff;
}

.container>nav {
    position: relative;
}

.xwdt_1 {
    width: 100%;
    height: 60%;
    background: url(../img/xwdt_bg.png) no-repeat center;
    background-size: cover;
    padding-top: 12%;
}

.xwdt_1>h3 {
    text-align: center;
    font-size: 0.5rem;
    width: 100%;
    height: 60px;
    color: #fff;
}

.xwdt_1>p {
    text-align: center;
    font-size: 0.2rem;
    color: #fff;
}

.litnav {
    width: 100%;
    height: 80px;
    background-color: #F6F7F9;
    position: relative;
}

.litnav>ul {
    display: flex;
    line-height: 80px;
    margin-left: 10%;
}

.litnav>ul>li {
    font-size: 0.16rem;
    color: #929292;
}

.litnav>ul>li>a {
    color: #929292;
}

.litnav>div {
    position: absolute;
    top: 0%;
    right: 5%;
    width: 25%;
    height: 100%;
    display: flex;
    justify-content: space-between;
}

.litnav>div>span {
    font-size: 0.24rem;
    display: block;
    line-height: 80px;
    border-bottom: 2px solid transparent;
    cursor: pointer;
}

.litnav>div>span>a {
    color: #333;
}

.litnav>div>.active {
    border-bottom: 2px solid #F16E1B;
    color: #F16E1B;
} 
.litnav>div>.active>a{
    color: #F16E1B;
}
.center {
    width: 100%;
    height: 250%;
    padding: 5% 8% 0 10%;
    position: relative;
    overflow: hidden;
}
.center>div.gsxw,.center>div.hyzx{
    width: 100%;
    height: 100%;
    position: absolute;
    opacity: 0;
    transition: 0.5s;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -ms-transition: 0.5s;
    -o-transition: 0.5s;
    z-index: 1;
}
.center>div.active{
    opacity: 1;
    z-index: 10;
}
.center>div>ul {
    width: 80%;
    height: 90%;
    position: absolute;
    opacity: 0;
    transition: 1.5s;
    -webkit-transition: 1.5s;
    -moz-transition: 1.5s;
    -ms-transition: 1.5s;
    -o-transition: 1.5s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.center>div>ul.active {
    opacity: 1;
    z-index: 10;
}

.center>div>ul>li {
    width: 100%;
    display: flex;
    justify-content: start;
    cursor: pointer;
    height: 13%;
}

.center>div>ul>li>a {
    display: inline-block;
    width: 28.5%;
    height: 100%;
}

.center>div>ul>li>a>img {
    width: 100%;
    height: 100%;
    display: block;
}

.center>div>ul>li>div {
    width: 73%;
    height: 100%;
    border-bottom: 1px solid #DFDFDF;
    position: relative;
    transform: translateX(6%);
    z-index: 1;
}

.center>div>ul>li>div>b {
    font-size: .16rem;
    position: absolute;
    top: 10%;
    color: #333;
}

.center>div>ul>li>div>h3>a {
    font-size: 0.24rem;
    position: absolute;
    top: 30%;
    color: #333;
}

.center>div>ul>li:hover>div {
    border-bottom: 1px solid #F16E1B;
}

.center>div>ul>li:hover>div>h3>a {
    color: #F16E1B;
}

.center>div>ul>li>div>p {
    font-size: 0.18rem;
    position: absolute;
    top: 60%;
    color: #999;
}

.center>div>ul>li>div>span {
    width: 50px;
    height: 50px;
    display: block;
    position: absolute;
    top: 35%;
    right: 5%;
    border-radius: 50%;
    background: url(../img/left.png) no-repeat 40% 50% #2B2E3D;
    transform: rotate(180deg);
    transition: 0.5s;
    -webkit-transition: 0.5s;
    -moz-transition: 0.5s;
    -ms-transition: 0.5s;
    -o-transition: 0.5s;
    z-index: 10;
}

.center>div>ul>li>div>span>a {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
}

.center>div>ul>li>div>span:hover {
    background-color: #F16E1B;
}

.center>div.down {
    width: 25%;
    display: flex;
    justify-content: space-around;
    margin: 0 auto;
    position: absolute;
    bottom: 5%;
    left: 40%;
    z-index: 20;
}

.center>div.down>a {
    font-size: 0.16rem;
    color: #333;
    font-weight: 600;
}

.center>div.down>a {
    color: #333;
    font-size: 0.16rem;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    background-color: transparent;
    line-height: 25px;
    text-align: center;
    cursor: pointer;
    font-weight: 600;
}

.center>div.down>a:first-child,.center>div.down>a:last-child {
    width: auto;
}
.center>div.down>a:hover {
    background-color: #F16E1B;
    color: #fff;
}

.center>div.down>a.active {
    background-color: #F16E1B;
    color: #fff;
}

@media screen and (max-width:1024px) {
    .xwdt_1 {
        height: 30%;
    }

    .center {
        height: 100%;
    }

    .center>div>ul>li>div>span {
        top: 15%;
    }
}

@media screen and (max-width:768px) {
    .center>div>ul>li>div>span {
        width: 35px;
        height: 35px;
    }
}

@media screen and (max-width:450px) {
    .center>div>ul>li>a>img {
        height: auto;
        transform: translateY(25%);
        -webkit-transform: translateY(25%);
        -moz-transform: translateY(25%);
        -ms-transform: translateY(25%);
        -o-transform: translateY(25%);
}
    .xwdt_1 {
        padding-top: 25%;
    }
    .litnav>ul>li {
        font-size: 14px;
    }
    .litnav {
        height: 40px;
    }

    .litnav>div {
        width: 30%;
    }

    .litnav>ul{
        line-height: 1.2;
        margin-left: 4%;
    }
    .litnav>div>span {
        line-height: 1.2;
    }

    .center>div>ul>li>div {
        border: none;
    }

    .center>div>ul>li>div>b {
        top: 0%;
        font-size: 13px;
    }
    .center>div>ul>li>div>h3>a {
        font-size: 13px;
    }
    .center>div>ul>li>div>p {
        font-size: 13px;
    }
    .center>div>ul>li>div>span {
        display: none;
    }

    .center {
        width: 100%;
        padding: 5% 3.5% 0 3.5%;
        overflow: hidden;
    }

    .center>div>ul {
        width: 100%;
    }

    .center>div.down {
        width: 50%;
        bottom: 3%;
        left: 28%;
    }
    .center>div>ul>li>div>p {
        width: 85%;
    }
    .center>div.down>a {
        font-size: 16px;
    }
    .xwdt_1>h3 {
        height: 35px;
    }
    .center>div>ul>li>div>p {
        top: 50%;
    }
    center>div>ul>li>div>b {
        top: 10%;
    }
}
@media screen and (max-width:736px) and (max-height:815px) {
    
}
@media screen and (max-width:736px) and (max-height:670px){
    
}