.header {
    width: 100%;
    height: 54px;
    line-height: 54px;
    background-color: rgba(4, 23, 55, 1);
    display: flex;
    align-items: center;
    font-size: 18px;
    z-index: 99999;
    position: fixed;
    top: 0
}

.header>div {
    width: 50%;
    margin-right: 5%;
}

.headernav {
    margin-left: 7%;
    width: 140px;
    height: 50px;
    line-height: 50px;
    background-size: 100% 100%;
    background-image: url('../img/logo.png');
}

ul {
    display: flex;
    align-items: center;
    line-height: 54px;
}

ul>li {
    width: 200px;
    display: flex;
    justify-content: center;
}

ul>li>a {
    color: rgba(255, 255, 255, 0.65);
}

ul>li>a:hover {
    color: rgba(59, 228, 234, 1)
}

.footer {
    width: 100%;
    height: 54px;
    background-color: #041737;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 18px;
    position: -webkit-sticky;
    position: sticky;
    top: 0;
}

.footer>div {
    width: 50%;
}

.footer>div:nth-of-type(1) {
    margin-left: 7%;
}


/* 导航栏滑下变色 */

.navlist {
    color: rgba(59, 228, 234, 1)
}

ul>li {
    position: relative;
}

.dropdown-content {
    position: absolute;
    background-color: rgba(4, 23, 55, 1);
    top: 100%;
    width: 100%;
    display: none;
}

.dropdown-content a {
    text-decoration: none;
    display: block;
    text-align: center;
    height: 50px;
    font-size: 16px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    color: rgba(255, 255, 255, 0.65);
    line-height: 50px;
}

.drop a {
    text-align: left;
    padding-left: 44px;
}

.dropdown-content a:hover {
    background: rgba(15, 45, 87, 1);
    color: rgba(59, 228, 234, 1)
}

ul>li:hover .dropdown-content {
    display: block;
}

.section {
    background-color: #000000 !important;
}


/* 底部开始 */

.down {
    height: 50vh;
    width: 100%;
    background-color: #000000;
    color: #FFFFFF;
    display: flex;
    flex-direction: column;
}

.upbox {
    display: flex;
    flex: 1;
    justify-content: space-around;
    align-items: center;
    height: 100%;
}

.upbox>div {
    width: 25%;
    height: 62%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-left: 12%;
}

.logo {
    width: 93%;
    height: 62% !important;
    background-size: 100% !important;
    background-image: url('../img/footer/logo.png');
}

.upbox>div:nth-of-type(2) {
    position: relative;
    height: 70%;
}

.upbox>div:nth-of-type(2)>div {
    margin-bottom: 3%
}

.upbox>div:nth-of-type(2)>div:nth-of-type(1) {
    background-color: #27C7C0;
    font-size: 1.5rem;
    font-weight: bold;
    color: #FFFFFF;
    width: 180px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.upbox>div:nth-of-type(2)::before {
    content: "";
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: absolute;
    left: -39%;
    top: 0%;
}

.upbox>div:nth-of-type(2)::after {
    content: "";
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: absolute;
    right: -17%;
    top: 0%;
}

.wechart>div:nth-of-type(1) {
    width: 37%;
    height: 85%;
    background-size: 100% !important;
    background-image: url('../img/footer/erweima.png');
}

.wechart>div:nth-of-type(2) {
    width: 37%;
    display: flex;
    justify-content: center;
}

.downbox {
    width: 100%;
    height: 60px;
    line-height: 60px;
    border-top: 1px solid rgba(255, 255, 255, 0.5);
    display: flex;
    justify-content: center;
    font-size: 16px;
}

.downbox>span,
.downbox>span>a {
    margin-right: 16px;
    color: rgba(255, 255, 255, 0.8)
}


/* 底部结束 */