@charset "utf-8";
body, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td, hr, button, article, aside, details, figcaption, figure, footer, header, menu, nav, section,img{
    margin: 0;
    padding: 0;
}
body{}
img{width:100%;}
.cont{width: 100%;overflow: hidden;font-size: 0;}
.box{width:4rem;margin:0 auto;height: 0;position: relative;}
.android,.ios{height: 2.1rem;width: 6.9rem;position: absolute;}
.android1{top: -2rem;left: -5.2rem;}
.android2{top: -2rem;left: -5.2rem;}
.ios1{top: -2rem;left: 2.3rem;}
.ios2{top: -2rem;left: 2.3rem;}
.down1{position: absolute;top: -1.6rem;left: -2.3rem;height: 2.1rem;width: 8.6rem;}
.down2{position: absolute;top: -1.7rem;left: -2.3rem;height: 2.1rem;width: 8.6rem;}
.mask{height: 100%;width: 100%;background: url(../images/mask.png);position: fixed;top: 0;left: 0;display: none;}
.mask img{height: 3.1rem;width: auto;padding: 0.4rem 0 0.1rem 11.5rem;}
.mask p{text-align: center;font-size: 0.84rem;color: #fff;}