.yilei-page-login{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.yl_bird_canv {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 2;
}

.login-page-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 80%;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-box {
    width: 420px;
    margin: 0 auto;
    z-index: 3;
}

.login-box .el-card__body{
    padding: 20px 40px;
}

.login-box .el-header, .el-footer {
    text-align: center;
}

.copyright {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    padding: 1em 0;
    font-size: 0.9em;
    line-height: 1.2em;
    opacity: 0.5;
    z-index: 4;
}

.copyright a {
    color: #fff;
    font-size: 1em;
    text-decoration: none;
}

html {
    background: radial-gradient(ellipse at center, #fffeea 0%, #fffeea 40%, #B7E8EB 100%);
    height: 100%;
    overflow: hidden;
}

.ocean {
    width: 100%;
    position: absolute;
    bottom: 0;
    left: 0;
    background: #015871;
    z-index: 1;
}

.wave {
    background: url(/static/images/wave.svg) repeat-x;
    position: absolute;
    top: -198px;
    width: 6400px;
    height: 198px;
    -webkit-animation: wave 7s cubic-bezier(0.36, 0.45, 0.63, 0.53) infinite;
    animation: wave 7s cubic-bezier(0.36, 0.45, 0.63, 0.53) infinite;
    transform: translate3d(0, 0, 0);
}

.wave:nth-of-type(2) {
    top: -175px;
    -webkit-animation: wave 7s cubic-bezier(0.36, 0.45, 0.63, 0.53) -0.125s infinite, swell 7s ease -1.25s infinite;
    animation: wave 7s cubic-bezier(0.36, 0.45, 0.63, 0.53) -0.125s infinite, swell 7s ease -1.25s infinite;
    opacity: 1;
}

@-webkit-keyframes wave {
    0% {
        margin-left: 0;
    }
    100% {
        margin-left: -1600px;
    }
}

@keyframes wave {
    0% {
        margin-left: 0;
    }
    100% {
        margin-left: -1600px;
    }
}

@-webkit-keyframes swell {
    0%, 100% {
        transform: translate3d(0, -25px, 0);
    }
    50% {
        transform: translate3d(0, 5px, 0);
    }
}

@keyframes swell {
    0%, 100% {
        transform: translate3d(0, -25px, 0);
    }
    50% {
        transform: translate3d(0, 5px, 0);
    }
}