@font-face {
    font-family: 'syht700';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-BOLD.OTF);
}
@font-face {
    font-family: 'syht300';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-EXTRALIGHT.OTF);
}
@font-face {
    font-family: 'syhtHA';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-HEAVY.OTF);
}
@font-face {
    font-family: 'syhtLIGHT';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-LIGHT.OTF);
}
@font-face {
    font-family: 'syht500';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-MEDIUM.OTF);
}
@font-face {
    font-family: 'syhtNORMAL';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-NORMAL.OTF);
}
@font-face {
    font-family: 'syht400';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/思源黑体SOURCEHANSANSCN-REGULAR.OTF);
}
@font-face {
    font-family: 'jxzk';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/jxzk.TTF);
}
@font-face {
    font-family: 'hwls';
    src: url(https://obs-resource.xinjiaoxue.cn/resource/font/ziyuanFont/STLITI.TTF);
}

.box{
    background: url(../images/index_bac.png) no-repeat fixed;
    min-width: 100vw;
    min-height: 100vh;
    background-size: 100% 100%;
    overflow: hidden;
}