/*首页*/
.container{
  max-width: 640px;
  margin: 0 auto;
  height: 100%;
  background: url(../images/bg.jpg) #fff no-repeat right bottom;
  background-size:100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  position:relative;
}
.container .box{
    width:80%;
    height:80%;
    left:50%;
    top:50%;
    transform:translate(-50%, -50%);
    position:absolute;
    overflow: hidden;
    display: flex;
    align-items: center;
    flex-direction: column;
}
.container .box img{
    max-width:100%;
    display:block;
}
.container .box .logo{
    width:45%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.container .box .by{
    width:90%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top:50px;
}
.container .box .btns{
    width:90%;
    margin-top:30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.container .box .btns a{
    width:47%;
    margin-bottom:15px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:30px;
    height:42px;
    color:#fff;
}
.container .box .btns a:nth-child(1){
    background: linear-gradient(to right, #b82e32, #e76e76);
    color: #fff;
    box-shadow:0 0 6px rgba(189, 43, 53, 1);
}
.container .box .btns a:nth-child(2){
    background:#f3f5f8;
    color: #333;
    box-shadow:0 0 6px rgba(0, 0, 0, .15);
}