body {
    background-color: #F6F6F6;
}
/* banner */
.main-banner {
    margin-top: 30px;
}
.main-banner img {
    width: 100%;
}

/* 导航菜单 */
.nav-menu {
    width: 100%;
    height: 100px;
    background-color: white;
}
.nav-menu ul {
    width: 1320px;
    margin: 0 auto;
    padding-left: 40px;
}
.nav-menu ul li {
    float: left;
    margin-left: 88px;
}
.nav-menu ul li:first-child {
    margin-left: 0;
}
.nav-menu ul li a {
    font-size: 20px;
    line-height: 100px;
}
.nav-menu ul .cur a {
    color: #10953E;
}
.nav-menu ul .cur-line {
    display: none;
}
.nav-menu ul .cur .cur-line {
    display: block;
    width: 20px;
    height: 2px;
    background: #10953E;
    margin-top: 49px;
    position: absolute;
    margin-left: -40px;
}