@charset "utf-8";
/*重置*/
body,h1,h2,h3,h4,h5,dl,dd,dt,p,ul,li,ol{ margin:0; padding:0;}
input,select,form,textarea,button{ border:none; margin:0;outline:none; padding:0; appearance:none;}
h1,h2,h3,h4,h5{ font-weight:normal;}
img{ border:none;}
a{ text-decoration:none;}
*{ font: normal 10px/100% "Helvetica Neue", Helvetica, Arial, sans-serif;}
li{ list-style-type:none;}
body,html{ width:100%; height:100%;}
body{ background-color: #fff; }

@media screen and (min-width: 320px) {html{font-size:50px;}}
@media screen and (min-width: 360px) {html{font-size:56.25px;}}
@media screen and (min-width: 375px) {html{font-size:58.59375px;}}
@media screen and (min-width: 400px) {html{font-size:62.5px;}}
@media screen and (min-width: 414px) {html{font-size:64.6875px;}}
@media screen and (min-width: 440px) {html{font-size:68.75px;}}
@media screen and (min-width: 480px) {html{font-size:75px;}}
@media screen and (min-width: 520px) {html{font-size:81.25px;}}
@media screen and (min-width: 560px) {html{font-size:87.5px;}}
@media screen and (min-width: 600px) {html{font-size:93.75px;}}
@media screen and (min-width: 640px) {html{font-size:100px;}}
@media screen and (min-width: 680px) {html{font-size:106.25px;}}
@media screen and (min-width: 720px) {html{font-size:112.5px;}}
@media screen and (min-width: 760px) {html{font-size:118.75px;}}
@media screen and (min-width: 800px) {html{font-size:125px;}}
@media screen and (min-width: 960px) {html{font-size:150px;}}

.download_box{ background: url(../images/bg.jpg) no-repeat center center;
	background-size: cover; height: 100%; width: 100%;
}
.download_box .logo{     width: 50%;
						 padding-top: 36%;
						 margin-bottom: 14%;
						 margin-left: 25%;}
.download_box .logo img{ display: block; width: 60%; margin:0 auto; }
.download_box .down_btn a{ display: block; margin:3% auto; width: 64%; position: relative; }
.download_box .down_btn a img{display: block; width: 100%;}
.download_box .down_btn a span{ position: absolute; top: 28%; left: 26%; font-size:.2rem; 
	color: #999; width: 21%; text-align: center; white-space: nowrap;
}
.download_box .down_btn a span:last-child{top:52%;}