* {
    margin: 0;
    padding: 0;
}

body {
    margin: 0;
    padding: 0;
    min-width: 1024px;
    max-width: 100%;
    height: 100%;
    font-family: SimHei;
}

ul li {
    list-style: none;
}

a {
    text-decoration: none;
    color: #666464;
}

i {
    font-style: normal;
}

header {
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
    /* position: relative; */
}


.header-top {

    height: 72px;
    background-color: #fff;
}

.nav {
    position: fixed;
    top: 0;
    display: flex;
    flex-direction: row;
    z-index: 3;
    height: 72px;
    width: 100%;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: 5px 5px 10px rgba(0, 0, 0, 0.5);

}

.nav>a>img {
    width: 20px;
    position: fixed;
    right: 20px;
    top: 20px;
    display: none;
}


.nav-left {
    width: 25%;
    height: 72px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.nav-left img {
    width: 60px;
    margin-left: 35px;
    border-radius: 50%;
}

.nav>ul {
    flex: auto;
    width: 50%;
    margin: 0 auto;
}

@media (max-width: 1170px) {
    #nav-middle {
        display: none;
    }

    .yewu img {
        display: none;
    }

    .nav-right {
        position: absolute;
        right: 25px;
    }

}



.nav>ul>li {
    padding-top: 10px;
    list-style: none;
    float: left;
    text-align: center;
    line-height: 50px;
    margin: 0 6px;

}


.nav>ul>li>a:hover {
    color: #69c5e5;
    border-bottom: 1.5px solid #7ec1d5;
}


body>section {
    width: 1038.75px;
    margin: 58px auto;
    margin-bottom: 100px;
}

.nav-right {
    width: 25%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

.nav-right>.box {
    margin-right: 35px;
    margin-top: 10px;
    color: white;
    font-size: 20px;
    text-align: center;
    width: 100px;
    height: 46.17px;
    line-height: 46.17px;
    background: #d04c55;
    border-radius: 30px;
}



section .Yewu {
    width: 100%;
}

section .Yewu>.yewu {
    position: relative;
    width: 1038.75px;
    height: 496.27px;
    margin-bottom: 4.1667vw;
}

section .Yewu>.yewu>.wenzi {
    display: flex;
    width: 569.3px;
    height: 496.27px;
    background-color: #efefef;
    transition: all .5s linear;
    color: #34354F;
    letter-spacing: 1px;
    border-radius: 50px;
}

section .Yewu>.yewu>.wenzi:hover {
    background-color: #69c5e5;
    color: white;
}

section .Yewu>.yewu:nth-child(2n)>.wenzi {
    position: absolute;
    right: 0;
}

section .Yewu>.yewu>.wenzi>.BOX {
    width: 313.11px;
    margin-left: 135px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);

}

section .Yewu>.yewu>.wenzi>.BOX>span {
    font-size: 36.0677px;
    font-weight: bold;

}

section .Yewu>.yewu>.wenzi>.BOX>p {
    font-size: 18.0338px;
    line-height: 30px;
    margin-top: 15px;

}

section .Yewu>.yewu>.wenzi>.BOX>i {
    font-size: 18.0338px;
    font-weight: bold;
    display: block;
    margin-top: 10px;
}

section .Yewu>.yewu>img {
    display: flex;
    position: absolute;
    top: 43.44px;
    width: 517.54px;
    height: 409.39px;
    border-radius: 50px;
    z-index: 1;
}

section .Yewu>.yewu:nth-child(2n+1)>img {
    position: absolute;
    right: 0;
}

/* 表单边框 */
table {
    border: 1px solid black;
    border-spacing: 0;
    text-align: center;
    display: inline-block;
}

tr,
th,
td {
    border: 1px solid black;

}


footer {
    width: 100%;
    height: 317.34px;
    background: #efefef;
    margin: 0 auto;
}

.footer {
    display: flex;
    position: relative;
    width: 1038.75px;
    height: 271.2px;
    margin: 0 auto;
}

.footer ul {
    margin: 80px 10px;

}

.footer ul li {
    margin-bottom: 25px;
    height: 23.09px;
    float: left;
    margin-left: 30px;
    font-weight: bold;
}

.footer ul li a:hover {
    color: #69c5e5;
}

.footer ul li:hover pre {
    display: block;
}

pre {
    display: none;
    color: #69c5e5;
}

.footer p {
    position: absolute;
    text-align: center;
    letter-spacing: 2px;
    font-size: 24px;
    color: #69c5e5;
    font-family: serif;
    width: 1100px;
    top: 25px;
}
h1{
    text-align: center;
    margin: 20px auto;
}