body{
    background: #fff;
}
/*轮播图*/
.banner-demo{
    height: 100%;
    position: absolute;
    top: 0;
    width: 100%;
}
/* flexslider */
.flexslider {
    position: relative;
    height: 100%;
}

.slides {
    position: relative;
    z-index: 1;
    padding: 0;
    margin: 0;
    height: 100%;
}

.slides li {
    height: 100%;
}

.slides li .content{
    max-width: 1200px;
    padding: 0 15px;
    margin: 200px auto 0;
    color: #fff;
}

.slides li .content .title-en-us{
    font-size: 45px;
    font-family: 'STXIHEI';
    line-height: 45px;
}

.slides li .content .title-zh-cn{
    font-size: 35px;
}

.flex-control-nav {
    position: absolute;
    bottom: 10px;
    z-index: 2;
    width: 100%;
    text-align: center;
}

.flex-control-nav li {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin: 0 5px;
    *display: inline;
    zoom: 1;
}

.flex-control-nav a {
    display: inline-block;
    width: 12px;
    height: 12px;
    line-height: 40px;
    overflow: hidden;
    border: 1px solid #fff;
    border-radius: 50%;
    cursor: pointer;
}

.flex-control-nav .flex-active {
    background: #fff;
}
/*产品介绍*/
.product{
    margin-top: 120px;
}
.product .container{
    max-width: 1200px;
}
.product .container .section-heading{
    font-size: 45px;
    font-family: 'STXIHEI';
    color: #666464;
}
.product .container .content{
    margin-top: 60px;
}
.product .container .content>div{
    padding: 10px;
}
.product .container .content>div .box{
    border: 1px solid #C6C6C6;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}
.product .container .content .introduce{
    padding: 50px 50px 0 50px;
}
.product .container .content .introduce .title .title-letters{
    font-size: 35px;
    font-family: 'STXIHEI';
    line-height: 35px;
}
.product .container .content .introduce .title .title-zh-cn{
    font-size: 18px;
    margin-top: 5px;
    font-family: 'PingFang_Medium';
    line-height: 18px;
}
.product .container .content .introduce .title .title-line{
    font-size: 30px;
    line-height: 20px;
    font-weight: 100;
}

.product .container .content .introduce .text{
    margin-top: 10px;
}

.product .container .content .introduce .text p{
    margin: 0;
    line-height: 1.5;
}
.product .container .content .img-bottom{
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
.product .container .content .img-bottom .dots{
    padding: 0 0 30px 50px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}
.product .container .content .img-bottom .dots ul{
    padding: 0;
    display: flex;
    float: left;
    width: 50px;
}
.product .container .content .img-bottom .dots ul li{
    width: 10px;
    height: 10px;
    margin-right: 5px;
    border-radius: 50%;
}
.product .container .content .img-bottom .img img{
    width: 100%;
}


@media(max-width:1200px) {

}

@media(max-width:992px) {
    /*产品*/
    .product .container .content .introduce{
        padding: 50px 30px 0 30px;
    }
    .product .container .content .img-bottom .dots {
        padding: 0 0 30px 30px;
    }
}

@media(max-width:767px) {
    .slides li .content{
        margin: 120px auto 0;
    }
    .slides li .content .title-en-us{
        font-size: 32px;
    }

    .slides li .content .title-zh-cn{
        font-size: 22px;
    }
    .flex-control-nav{
        bottom: 0;
    }
    /*产品*/
    .product{
        margin-top: 60px;
    }
    .product-back{
        margin-top: 10px;
    }
    .product .container .section-heading{
        font-size: 32px;
    }
    .product .container .content{
        margin-top: 30px;
    }
    .product .container .content>div{
        padding: 0 50px 50px 50px;
    }
    .product .container .content .introduce{
        padding: 50px 50px 0 50px;
    }
    .product .container .content .img-bottom .dots {
        padding: 0 0 30px 50px;
    }
}

@media(max-width:460px) {
    .product .container .content>div{
        padding: 10px;
    }
    .product .container .content .introduce{
        padding: 50px 40px 0 40px;
    }
    .product .container .content .img-bottom .dots {
        padding: 0 0 30px 40px;
    }
}