html,body{
    width: 100%;
    height: 100%;
}
.login-bg{
    position: relative;
    left:0;
    top:0;
    width: 100%;
    height: 100%;
    min-width: 1200px;
    background: url("../images/login-bg.png") no-repeat center center;
    background-size: cover;
}
.login-box{
    width: 460px;
    height: 260px;
    padding:20px;
    border-radius: 8px;
    opacity: .7;
    background:#fff;
    position: absolute;
    top:50%;
    left: 50%;
    margin-top: -150px;
    margin-left: -250px;
}
.login-title{
    margin-bottom: 20px;
    border-bottom: 1px solid #ccc;
    padding:0 20px 20px 20px;
}
.login-title .logo{
    text-align: center;
}
.login-box .layui-input{
    background: #fbfbfb;
}
.login-box .flex-between{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.app-down{
    position: absolute;
    right: 30%;
    top: 15px;
}
.qrcode-box{
    padding: 15px;
}
.qrcode-box img{
    width: 100%;
    height: 100%;
}
.qrcode-box .tips{
    text-align: center;
    font-size: 12px;
    color: #999;
}