* {
    font-family: Microsoft YaHei;
    margin: 0;
    padding: 0;
    list-style: none;
}

a {
    color: black;
    text-decoration-line: none;
}

input {
    border: none;
}

header {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 100%;
    min-width: 1250px;
    height: 80px;
    background-color: #fff;
    box-shadow: 0 0 5px 5px #eee;
}

.header {
    height: 80px;
    width: 1250px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header>img {
    width: 137px;
    height: 41px;
    margin-right: 50px;
}

.header>ul {
    flex: 1;
    height: 80px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 80px;
}

.header>ul>li {
    position: relative;
    width: 90px;
    height: 80px;
    font-size: 18px;
    font-weight: 400;
    color: #515151;
    text-align: center;
    line-height: 80px;
}
.header>ul>li:hover>div{
    height: 160px;
}

.header>ul>li>a {
    text-decoration: none;
}

.header>ul>li>div {
    position: absolute;
    width: 200px;
    height: 0;
    overflow: hidden;
    z-index: 8;
    top: 80px;
    left: -50%;
    background-color: #fff;
    transition-duration: .5s;
}
.header>ul>li>div>a{
    display: block;
    font-size: 16px;
    line-height: 2.5em;
    text-decoration: none;
}
.header>ul>li>div>a:hover{
    color: #1D4780;
}

.phone {
    width: 230px;
    height: 80px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.phone>img {
    width: 30px;
    height: 30px;
}

.phone>.txt {
    width: 193px;
    font-size: 18px;
    font-weight: 400;
    color: #515151;
}

#pages {
    padding-top: 30px;
    text-align: center;
    font: 12px '微软雅黑';
}

#pages a {
    display: inline-block;
    padding: 0px 8px;
    height: 22px;
    font-size: 12px;
    line-height: 22px;
    background: #fff;
    border: 1px solid #e3e3e3;
    text-align: center;
    color: #333
}

#pages a.a1 {
    padding: 0px 12px;
    height: 22px;
    line-height: 22px;
    margin-top: 0px;
}

#pages a:hover {
    background: #f1f1f1;
    color: #000;
    text-decoration: none;
}

#pages span {
    display: inline-block;
    padding: 0px 8px;
    height: 22px;
    line-height: 22px;
    background: #1C455D;
    border: 1px solid #1C455D;
    color: #fff;
    text-align: center;
}