@media (min-width: 769px) {
.pc_dn{
 display:none;
}
.w{
 width:1200px;
 margin:0 auto;
}



}
@media screen and (max-width: 768px) {
/* css hack */
html {
    padding: 0;
    margin:0;
    font-size: 625%;
    -webkit-text-size-adjust: none;
    -webkit-overflow-scrolling: touch;
    /*10 ÷ 16 × 100% = 62.5%*/
}

body {
    padding: 0;
    font-size: .14rem;
    max-width: 768px;
    margin: 0 auto;
    -webkit-overflow-scrolling: touch;
    /*1.4 × 10px = 14px */
	background:url('/images/wapbg.jpg') no-repeat;
}
html, body{ margin:0; min-height:100%; }
h1 {
    font-size: .24rem;
    /*2.4 × 10px = 24px*/
}

/* 全局设定 */

body {
    margin: 0;
    padding: 0;
    color: #444;
    font-family: SourceHanSerifSC-Regular, Arial, Helvetica, sans-serif;
}

img {
    width: 100%;
    height: auto;
    border: none;
    vertical-align: middle;
}
.main {
height: 100%;

}
.clear_sj{
 clear:both;
}
.mt20 {
    margin-top: 20px;
}

@media only screen and (min-width: 375px) {
    html {
        font-size: 700%!important
    }
}
@media only screen and (min-width: 410px) {
    html {
        font-size: 800%!important
    }
}
@media only screen and (min-width: 481px) {
    html {
        font-size: 940%!important
    }
}

@media only screen and (min-width: 561px) {
    html {
        font-size: 1090%!important
    }
}

@media only screen and (min-width: 641px) {
    html {
        font-size: 1250%!important
    }
    body {
        margin: 0 auto;
        max-width: 768px
    }
}

.sj_dn{
 display:none;
}







}