* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: #000;
}

header .top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: auto;
    width: 1280px;
    height: 160px;
    background: #fff;
}

header .top .logo {
    width: 442px;
    height: 115px;
}

header .top .logo img {
    width: 100%;
    height: 100%;
}

header .top .search {
    width: 330px;
    height: 34px;
}

header .top .search form {
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
}

header .top .search input[type='text'] {
    padding: 0 6px;
    width: 260px;
    height: 100%;
    border: none;
    background: #f2f2f2;
    color: #0c6a16;
    box-sizing: border-box;
    outline: none;
}

header .top .search input[type='submit'] {
    border: none;
    width: 70px;
    height: 100%;
    background-color: #0c6a16;
    background-image: url(../images/icon-search.png);
    background-size: 24px 24px;
    background-position: center center;
    background-repeat: no-repeat;
}

header .menu {
    width: 100%;
    margin: auto;
    height: 45px;
    background: #f2f2f2;
    clear: both;
}

header .menu>ul {
    width: 1280px;
    height: 45px;
    margin: auto;
}

header .menu>ul>li {
    float: left;
}

header .menu a {
    font-size: 20px;
    font-weight: bold;
    color: #000;
    border-bottom: 2px #f2f2f2 solid;
    font-weight: bold;
    display: block;
    text-align: center;
    width: 181px;
    height: 45px;
    padding-top: 8px;
    box-sizing: border-box;
}

header .menu a:hover {
    text-decoration: none;
    border-bottom: 2px #0c6a16 solid;
    color: #0c6a16;
}

header .menu ul li.line {
    width: 1px;
    height: 25px;
    margin-top: 10px;
    background: #000;
}

header .menu .submenu {
    display: none;
    position: absolute;
    width: 181px;
    height: auto;
    background: #fff;
    z-index: 99999;
}

header .menu .submenu a {
    font-size: 18px;
    color: #333;
    border-bottom: 2px #f2f2f2 solid;
    display: block;
    text-align: center;
    width: 181px;
    height: 45px;
    padding-top: 8px;
}

header .menu .submenu a:hover{
    text-decoration: none;
    border-bottom: 2px #0c6a16 solid;
    color: #0c6a16;
}