.first {
    width: 100%;
    height: 60px;
    border-bottom: 1px solid #ebebeb;
}

#menu {
    width: 1300px;
    margin: 0 auto;
}

#menu ul li {
    float: left;
    font-size: 18px;
    margin: 0 15px;
    color: #333333;
}

#menu ul li a {
    height: 60px;
    line-height: 60px;
    font-style: initial;
    color: inherit;
}

#menu>ul>li:hover {
    color: #F7902B;
    border-bottom: 1px solid #F7902B;
}

#menu .currentItem {
    color: #F7902B;
    border-bottom: 1px solid #F7902B;
}

.second {
    width: 1200px;
    margin: 0 auto;
}

#products_banner{
    height: 320px;
    position: relative;
}
#products_banner .banner_image{
    height: 100%;
    width: 100%;
}
#products_banner .banner_text{
    position: absolute;
    left: 40%;
    top: 40%;
    color: white;
    font-size: 34px;
    text-align: center;
    font-family: "Microsoft YaHei";
}
#products_banner .banner_text p:first-child{
    margin-bottom: 15px;
}