.main-body {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.main-body a{
    position: absolute;
    bottom: 20px;;
}
.login-main .login-bottom .center .item input {
    display: inline-block;
    width: 227px;
    height: 22px;
    padding: 0;
    position: absolute;
    border: 0;
    outline: 0;
    font-size: 14px;
    letter-spacing: 0;
}

.login-main .login-bottom .center .item .icon-2 {
    background: url(../images/icon-login.png) no-repeat -54px 0;
}

.login-main .login-bottom .center .item .icon-3 {
    background: url(../images/icon-login.png) no-repeat -106px 0;
}

.login-main .login-bottom .center .item .icon {
    display: inline-block;
    width: 33px;
    height: 22px;
}

.login-main .login-bottom .center .item {
    width: 288px;
    height: 35px;
    border-bottom: 1px solid #dae1e6;
    margin-bottom: 35px;
}

.login-main {
    width: 428px;
    position: relative;
    float: left;
}

.login-main .login-top {
    height: 117px;
    background-color: #148be4;
    border-radius: 12px 12px 0 0;
    font-family: SourceHanSansCN-Regular;
    font-size: 30px;
    font-weight: 400;
    font-stretch: normal;
    letter-spacing: 0;
    color: #fff;
    line-height: 117px;
    text-align: center;
    overflow: hidden;
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -ms-transform: rotate(0);
    -o-transform: rotate(0);
    transform: rotate(0);
}

.login-main .login-top .bg1 {
    display: inline-block;
    width: 74px;
    height: 74px;
    background: #fff;
    opacity: .1;
    border-radius: 0 74px 0 0;
    position: absolute;
    left: 0;
    top: 43px;
}

.login-main .login-top .bg2 {
    display: inline-block;
    width: 94px;
    height: 94px;
    background: #fff;
    opacity: .1;
    border-radius: 50%;
    position: absolute;
    right: -16px;
    top: -16px;
}

.login-main .login-bottom {
    width: 428px;
    background: #fff;
    border-radius: 0 0 12px 12px;
    padding-bottom: 53px;
}

.login-main .login-bottom .center {
    width: 288px;
    margin: 0 auto;
    padding-top: 40px;
    padding-bottom: 15px;
    position: relative;
}

.login-main .login-bottom .tip {
    clear: both;
    height: 16px;
    line-height: 16px;
    width: 288px;
    margin: 0 auto;
}

 .login-bg {
    background: url(../images/loginbg.png) 0% 0% / cover no-repeat;
    position: static;
    font-size: 12px;
}

.login-main .login-bottom .login-btn {
    width: 288px;
    height: 40px;
    background-color: #1E9FFF;
    border-radius: 16px;
    margin: 24px auto 0;
    text-align: center;
    line-height: 40px;
    color: #fff;
    font-size: 14px;
    letter-spacing: 0;
    cursor: pointer;
    border: none;
}

@media screen and (max-width:428px) {
    .login-main {
        width: 360px !important;
    }

    .login-main .login-top {
        width: 360px !important;
    }

    .login-main .login-bottom {
        width: 360px !important;
    }
}
.flex{
    display: flex;
    justify-content: space-between;
    align-items: center;
}