.banner{
    width: 100%;
    height: 600px;
}
.item1{
    background-image: url("../img/banner1.png");
    background-size: cover;
}
.item2{
    background-image: url("../img/banner2.png");
    background-size: cover;
}
.item3{
    background-image: url("../img/banner3.png");
    background-size: cover;
}
.item {
    color: #fff;
    text-align: center;
}
.item h2 {
    margin-top: 210px;
    font-size: 44px;
}
.item p{
    margin-top: 20px;
    font-size: 18px;
}
.item a {
    width: 160px;
    display: inline-block;
    color: #fff;
    margin-top: 20px;
    padding: 12px 20px;
    background-color: #ff9900;
    border-radius: 12px;
    font-size: 16px;
}
.products{
    height: 500px;
}
.products h2{
    margin-top: 100px;
}
.title{
    text-align: center;
    font-size: 30px;
}
.products-list{
    margin-top: 75px;
    display: flex;
    justify-content: space-between;
}
.products-item{
    width: 290px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    height: 300px;
}
.p-img{
    width: 220px;
    height: 220px;
    background-color: #b2b2b2;
    border-radius: 50%;
}
.products-item p {
    padding: 0 12px;
    text-align: center;
    margin-top: -15px;
}
.products-item h3{
    font-size: 18px;
}
.p-btn{
    margin: 50px auto 0;
    width: 500px;
    display: flex;
    justify-content: space-between;
}
.p-btn a{
    display: block;
    padding: 4px 20px;
    border: 1px solid #999;
    border-radius: 8px;
    font-size: 18px;
}
.option{
    width: 100%;
    height: 600px;
    background-image: url("../img/index-background.png");
    background-size: cover;
    overflow: hidden;
}
.option h2 {
    color: #fff;
    margin-top: 75px;
}
.option-list{
    margin-top: 58px;
    display: flex;
    justify-content: space-between;
}
.option-item{
    width: 326px;
    height: 326px;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
}
.op-img{
    width: 246px;
    height: 197px;
    background-color: #f2f2f2;
}
.option-item p{
    font-size: 18px;
}
.advantage{
    overflow: hidden;
}
.advantage h2{
    margin-top: 80px;
}
.advantage-list {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 110px;
}
.ad-item{
    margin-top: 40px;
    width: 312px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.ad-item p {
    width: 248px;
    font-size: 16px;
}
.ad-item img{
    width: 45px;
    height: 45px;
}
.ad-p{
    margin-top: 10px;
    font-size: 18px;
    text-align: center;
}
.plat-btn{
    width: 1240px;
    margin: 40px auto 120px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.plat-btn a{
    padding: 14px 30px;
    font-size: 22px;
    border-radius: 20px;
    border: 1px solid #999;
}
.cooperation{
    height: 550px;
    width: 100%;
    background-color: #4f99b7;
    overflow: hidden;
}
.cooperation h2 {
    color: #fff;
    margin-top: 40px;
}
.cooperation-list{
    height: 300px;
    background-color: #f2f2f2;
    margin-top: 60px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
}
.coo-item{
    width: 120px;
    height: 120px;
    background-color: #fff;
}
.coo-item img {
    width: 120px;
    height: 120px;
}
.c-list{
    width: 650px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.news{
    display: flex;
}
.news-item{
    width: 690px;
}
.news-item h2 {
    margin-top: 40px;
}
.news-item li{
    height: 140px;
    width: 100%;
    border-bottom: 1px solid #999;
    margin-bottom: 10px;
}
.news-item img{
    width: 150px;
    height: 120px;
}
.news-list{
    margin-top: 50px;
}
.news-list li a{
    display: flex;
    justify-content: space-around;
    align-items: center;
}
.news-list li p{
    width: 420px;
    font-size: 16px;
    color: #999;
}
.news-list li h3 {
    font-size: 20px;
}
.more-news {
    text-align: center;
    margin-top: 20px;
}
.more-news a{
    padding: 10px 20px;
    border: 1px solid #999;
    border-radius: 5px;
}
.about{
    height: 620px;
    overflow: hidden;
    background-color: #f2f2f2;
    margin-top: 80px;
}
.about img{
    width: 300px;
    height: 80px;
    text-align: center;
}
.logo-hx{
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 60px;
}
.about-item{
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin-top: 60px;
}
.about-item img {
    width: 500px;
    height: 340px;
}
.about-r{
    height: 340px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.about-item p {
    width: 680px;
    line-height: 1.8;
    font-size: 18px;

}
.about-item a{
    width: 120px;
    font-size: 18px;
    padding: 10px 20px;
    border-radius: 10px;
    border: 1px #999 solid;
}