.header .headerMain {
    background: url("https://www.zhanjiang.gov.cn/publicM/banner_m.jpg") no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 54vw;  
}

.header .headerMain .logo {
    padding-top: .5rem;
    text-align: center;
}

.header .headerMain .logo img {
    width: 75%;
}

.header .headerMain .search {
    position: relative;
    width: 90%;
    height: .6rem;
    line-height: .6rem;
    margin: .4rem auto 0;
    overflow: hidden;
}

.header .headerMain  .search form{
    background: rgba(255, 255, 255, 0.8);
    height: .6rem;
}

.header .headerMain  .search form input {
	height: 100%;
    width: 84%;
    text-indent: .6rem;
    font-size: .3rem;
    outline: none;
    border: none;  
    background: none;
}

.header .headerMain .search form img{
    position: absolute;
    top: .1rem;
    left: .15rem;
    width: .32rem;
}

.header .headerMain .search form button {
    height: 100%;
    width: 14.4%;
    background: #4c93c9;
    border: none;
    cursor: pointer;
    font-size: .3rem;
    font-weight: bold;
    color: #fff;
}

.header .nav {
    background: #3968b6;
}

.header .nav ul li {
    display: inline-block;
    float: left;
    text-align: center;
    color: #FFFFFF;
    width: 25%;
    line-height: .9rem;
}

.header .nav ul li.current {
    font-weight: bold;
}

.header .nav ul li.current a {
    border-bottom: 3px solid #FFFFFF;
    padding-bottom: .05rem;
}

.header .nav ul .line {
    width: 100%;
    height: 1px;
    float: left;
    background: #254f95;
}