body{font-family:'Microsoft Yahei',"微软雅黑","STHeiti",'Hiragino Sans GB','WenQuanYi Micro Hei',sans-serif;-webkit-font-smoothing:antialiased; font-size:14px;font-smoothing:antialiased;text-rendering:optimizeLegibility; overflow-x:hidden; color:#333;background: url(../img/load_bg.jpg) no-repeat center center #fff;background-size: cover;max-width: 1920px;max-height: 1080px;text-align: center;}
body,html{padding: 0;margin: 0;}
body{margin: 0 auto;}
a:hover{color:#f15e33}
.logo{margin: 15px auto;clear: both;overflow: hidden;width: 1200px}
.logo a{width: 50%;display: block;float: left;padding-left:45px;box-sizing:border-box;text-align: left}
.enter{color: #000;display: block;font-weight: bold;font-size: 28px;margin-top: 30px;float: right;text-align: right;padding-right:45px;}
.enter img{float: right}
.mask{position: absolute;bottom: 0;height:50%;width: 100%; background-color: rgba(0,0,0,0.6);margin: 0;z-index: 9}

.text{font-size: 24px;color: #fff;text-align: center;margin: 130px auto 0;width: 1200px}
.text .tb{font-size: 36px;margin: 40px auto;padding: 38px 15px;border-top: 1px solid #fff;display: inline-block}
.bomcon{bottom: 0;height:50%;width: 100%;min-width: 1200px; z-index: 10;text-align: center}
.bomcon .con{width:100%;margin: 20px auto}
.nav{margin: 20px auto;width: 96%;max-width: 1600px}
.nav a{width: 25%;text-align: center;display: block;float: left}
.nav a img{max-width:100%;}
.nav a span{color: #1296db;font-size: 24px;display: block;clear: both;margin-top: 5px;}
.nav a:hover span{color:#f15e33}