body {
    background-color: rgb(162,165,169);
    -webkit-transition: margin 500ms ease;
    -moz-transition: margin 500ms ease;
    -ms-transition: margin 500ms ease;
    -o-transition: margin 500ms ease;
    transition: margin 500ms ease;
}
.container { width:auto; margin:0 0px;}
h3{
    margin: 30px 0;
    padding: 39px 19px 24px;

}
.gauss{
    top: 0;
    height: 60px;
    width: 100%;
    z-index: 998;
    position: fixed;
    background-image: linear-gradient(180deg,rgba(162,165,169,1)0%,rgba(162,165,169,0.95)40%,
    rgba(162,165,169,0)100%);
}
#gauss{
    opacity: 0;
}


p {
    font-size: 20px;
    font-weight: 400;
    line-height: 30px;
    color: white;
    font-family: 宋体;
}
a {
    text-decoration: none;
    color: white;
    position: relative;
}
a:after {
    content: "";
    position: absolute;
    z-index: -1;
    top: 60%;
    left: -0.1em;
    right: -0.1em;
    bottom: 0;
    transition: top 200ms cubic-bezier(0, .8, .13, 1);
    background-color: rgba(79,192,220,0.5);
}
a:hover:after {
    top: 0%;
}
a img{
    display: none;
}
a:hover img{
    display: flex;
    position: absolute;
    bottom: 25px;
    right: 0;
}
#wechat{
    position: absolute;
    z-index: 1;

}
.big_title{
    z-index: 1
}
.hey{
    font-size: 90px;
    margin: 20px;
}
.description{
    font-size: 30px;
    margin-top: 20px;
}
.indicator {
    position: absolute;
    bottom: 20px
}
.blink {
    -webkit-animation: blink-animation 3s steps(100,start) infinite;
    animation: blink-animation 3s steps(100,start) infinite
}
@-webkit-keyframes blink-animation {
    0% {
        opacity: .3
    }

    50% {
        opacity: 1
    }

    to {
        opacity: .3
    }
}

@keyframes blink-animation {
    0% {
        opacity: .3
    }

    50% {
        opacity: 1
    }

    to {
        opacity: .3
    }
}

.welcome{
    position: fixed;
    top: 0;
    width: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    height: 100%;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    background-image: url('/shared/assets/images/page_background.png');
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.main_text{
    position: fixed;
    width: 100%;
    height: 100vh;
    overflow: scroll;
    -webkit-overflow-scrolling: touch;
    padding-top: 100vh;
    -webkit-transform: translateZ(0);
    z-index: 2
}
.card{
    width: 100%;
    height: 200px;
    background-color: rgb(92, 95, 99);
    margin-bottom: 40px;
    align-items: center;
    justify-content: center;
    display: flex;
    flex-direction: column;
    box-shadow: -8px -8px 16px -10px rgba(255,255,255,1),
                8px 8px 16px -10px rgba(0,0,0,.15);
    padding: 24px;
    border-radius: 20px;
}