* {
    margin: 0px;
    padding: 0px;
}

body::-webkit-scrollbar {
    display: none;
}

.g {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-around;
}

body {
    /* width: 1400px;  */
    margin: 0 auto;
}

#app {
    /* width: 100%; */
    /* margin: 0 auto; */
}

.top {
    color: #fff;
    /* height: 70px; */
    /* height: 8%; */
    height: 9vh;
    /* line-height: 70px; */
    align-items: center;
    width: 100%;
    text-align: center;

    background-image: url("./assets/导航条.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;

    position:fixed;
    top: 0;
}

.top-title {
    font-size: 32px;
    letter-spacing: 5px;
    font-weight: 600;
}

.top-login {
    /* height: 30px;
    width: 70px;
    line-height: 30px;
    display: inline-block;
    background-color: #1782ff;
    border-radius: 30px; */
}

.back {
    background-repeat: no-repeat;
    /* background-size: 100%; */
    background-size: 100% 100%;
    /* background-size: cover; */
    /* 当内容高度大于图片高度时，背景图像的位置相对于viewport固定 */
    /* background-attachment: fixed; */
    /* 让背景图基于容器大小伸缩 */
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 52vh;
    background-image: url("./assets/背景.png");
}

.back img {
    /* padding: 110px 800px; */
    /* position: relative; */
    position:relative;
    top: 40%;
    left: 50%;
    width: 20%;
}

.center {
    text-align: center;
    margin: 30px 0;
}

.center img {
    width: 60%;
}

.center-top{
    margin:0 auto;
    padding:0;
    position:fixed;
    bottom:40vh;
    left:50%;
    transform:translate(-50%,0); 
    display:flex; 
    justify-content:space-around;
}
.center-top span {
    color: white;
    margin: 0 160px;
    background-color: #1c3d62;
    display: inline-block;
    height: 40px;
    line-height: 40px;
    width: 300px;
    border-radius: 40px;
    letter-spacing: 2px;
    transition: all 0.2s linear;
}

.center-top span:hover {
    background-color: #e6e6e6;
    /* border: 1px solid #475c73; */
    color: black;
}

.center-bottom {
    /* display: flex;
    flex-wrap: wrap;
    margin: 40px auto;
    text-align: center;
    justify-content: center;
    align-items: center;
    border: 1px solid #eeeeee; */

    justify-content: center;
    border:1px solid #eee;
    margin:10px auto 0;
    position:fixed;
    bottom:12vh;
    height:26vh;
    left:50%;
    transform:translate(-50%,0);
    width:78%; 
    display:flex;
}

.center-bottom dd {
    margin: 5px 0;
}

dl {
    transition: all 0.2s linear;
    height: 100%;
    width:14.15%;
}

dl:hover {
    /* border-radius: 20%; */
    background-color: #1f3c60;
    color: white;
}

dt {
    margin-top: 35px;
}

.bottom {
    /* color: #8798b9; */
    /* height: 8%; */
    color: white;
    font-size: 13px;
    width: 100%;
    height: 60px;
    background-color: #1c3d62;
    position: fixed;
    bottom: 0;
    text-align: center;
}

.bottom-top {
    /* justify-content: center;
    height: 60px;
    align-items: center;
    padding-top: 10px; */
    width: 1180px;
    height: 100%;
    line-height: 24px;
    color: white;
    font-size: 14px;
    margin: 0 auto;
    text-align: center;
    padding-top: 5px;
}
/* .bottom-top span{
    padding: 0 10px;
} */

/* hr {
    border: 1px solid #8798b9;
}

.bottom-bottom {
    height: 30px;
    line-height: 50px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
} */