.qfd:after {
    content: "";
    display: block;
    clear: both;
}
[class*='adv-1']{
    display: block;
    width: 1200px!important;
    margin: 20px auto;
}
.nst-im{
    background: #FFFFFF;
    width: 100%;
    box-sizing: border-box;
}
.nst{
    display: flex;
    justify-content: space-between;
    width: 1200px;
    margin: 0 auto;
    height: 30px;
    line-height: 30px;
}
.nstop-dm{
    width: 100%;
}
.nstop{
    display: flex;
    width: 1200px;
    margin: 20px auto;
    justify-content: space-between;
    align-items: center;
}
.nstop .logo{
    display: block;
    margin: auto 0;
    height: 75px;
    width: 240px;
}
.nsinput select{
    border: 1px solid #aaaaaa;
    box-sizing: border-box;
}

.nstop .nsinput{
    display: flex;
    height: 40px;
    margin: auto;
}
.nstop .nsinput input[type=text]{
    display: block;
    text-indent: 1em;
    border: 1px solid #aaaaaa;
    border-right: none;
    box-sizing: border-box;
    background: #ffffff;
    width: 340px;
    height: 40px;
    outline: none;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}
.nstop .nsinput input[type=submit]{
    display: block;
    width: 80px;
    line-height: 40px;
    height: 40px;
    outline: none;
    background-color:#ff7f34;
    color: #ffffff;
    border: 1px solid #ff7f34;
    border-left: none;
    box-sizing: border-box;
    border-top-right-radius: 10px;
    border-bottom-right-radius: 10px;
}
.nstop button img{
    display: block;
    width: 30%;
    height: 50%;
    margin: auto;
}
.nsdh{
    border-radius: 30px;
    display: flex;
    width: 240px;
    height: 60px;
    margin: auto 0;
}
.nsdh img{
    display: block;
    margin: auto 5px;
    width: 50px;
    height: 50px;
}
.nsdh p{
    line-height: 30px;
    display: block;
    height: 30px;
    font-size: 16px;
}

.nsdh .nsdh-span{
    margin: auto 0;
    color: #fc9c04;
    font-size: 22px;
    font-weight: bold;
}
.nsnav-im{
    background-color: #ff7f34;
    width: 100%;
    background-size: 100% 100%;
}
.nsnav{
    display: flex;
    width: 1200px;
    margin: 0 auto;
    height: 40px;
    line-height: 40px;
    justify-content: space-between;
}
.nsnav a{
    font-size: 18px;
    color: #ffffff;
}
.nst-l{
    display: flex;
}
.nst-r{
    display: flex;
}
.nst-l span,
.nst-r span{
    margin: 0 5px;
}
.nsnav a:nth-child(-n+1){
    position: relative;
    display: block;
    width: 20%;
    text-align: center;
    background-color: #ffffff;
    font-size: 18px;
    display: block;
    text-align: center;
    color: #ff7f34;
    font-weight: bold;
    font-size: 18px;
}
.nsnav a.nsnav-a{
    font-weight: bold;
}
.nst-adv{
    margin-top: 10px;
    width: 100%;
}
.nst-adv .adv-1{
    display: flex;
    width: 1200px;
    margin: 0 auto;
    justify-content: space-between;
}
.nst-adv .adv-1 a{
    display: block;
    width: 49%;
    height: 110px;
}
.nst-adv .adv-1 a img{
    width: 100%;
    height: 100%;
}
.nsf-im{
    width: 100%;
    background-color: #333333;
}
/* footer */
.f-dm{
    width: 1200px;
    border-top: 2px solid #ff7f34;
    box-sizing: border-box;
    margin: 0 auto;
}
.f-nav{
    display: flex;
    justify-content: space-evenly;
}
.f-nav a{
    height: 40px;
    line-height: 40px;
    text-align: center;
    color: #797979;
    font-size: 16px;
}
.f-dm p{
    color: #797979;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 16px;
}