@keyframes bubble {
    0%{
        left: 0;
        top: 0;
    }
    12.5%{
        left: 12.5%;
        top: 200px;
    }
    25%{
        left: 25%;
        top: 0;
    }
    37.5%{
        left: 37.5%;
        top: 200px;
    }
    50%{
        left: 50%;
        top: 0;
    }
    62.5%{
        left: 62.5%;
        top: 200px;
    }
    75%{
        left: 75%;
        top: 0;
    }
    87.5%{
        left: 87.5%;
        top: 200px;
    }
    100%{
        left: 100%;
        top: 0;
    }
}

html, body{
    margin: 0;
    padding: 0;
}

.clearfix{
    zoom: 1;
}

.clearfix::after{
    content: "";
    display: block;
    float: left;
    clear: both;
}

.footer{
    width: 100%;
    min-width: none;
    height: 300px;
    position: relative;
    background-image: linear-gradient(to bottom, #8decef, #7984fe);
    margin-top: 150px;
}

.footer::before{
    content: "";
    display: block;
    width: 160px;
    height: 240px;
    background-image: url(./robot.svg);
    background-size: 100% 100%;
    background-repeat: no-repeat;
    position: absolute;
    right: 100px;
    top: -160px;
    transform: rotate(15deg);
}

.footer .inner{
    width: 100%;
    height: 300px;
    position: absolute;
    left: 0;
    bottom: 0;
    overflow: hidden;
}

.footer .inner::before{
    content: "";
    display: block;
    position: absolute;
    left: 50px;
    top: 50px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background-image: radial-gradient(#66ccff22, #0088ff66);
    animation: bubble 10s linear infinite alternate;
}

.footer .menu{
    float: left;
    color: #ffffff;
    padding: 30px;
    line-height: 25px;
    margin-right: 50px;
}

.footer h3{
    font-size: 25px;
    font-weight: normal;
    margin: 0;
    padding: 0;
    line-height: 40px;
}

.footer .menu .links, .footer .menu .links>li{
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer .menu .links>li>a{
    text-decoration: none;
    color: inherit;
}

.footer .center{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.footer .beian{
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: #cccccc;
    font-size: 12px;
}

.footer .beian a{
    color: #bbbbbb;
    text-decoration: underline;
}