*{
    margin: 0;
    padding:0;
    list-style: none;
}
body{
    width: 100%;
    font-size: 1.6rem;
}
html {
    font-size: 10px;
}
a{
    text-decoration:none;
    color:#333;
}
h2{
    margin-bottom: 20px;
}
p{
    margin: 0;
}
header{
    width: 100%;
    position: relative;
    height: 15rem;
}
header .title{
    margin: 0 auto;
    width: 90%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}
header nav{
    width: 50%;
    height: 100%;
}
header nav ul{
    height: 100%;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex: 1;
}
header nav ul li{
    width: 76px;
    height: 100%;
    text-align: center;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}
header nav ul li .line{
    width: 100%;
    height: 3px;
    background-color: red;
    position: absolute;
    bottom: 0;
    border-radius: 40px;
}
header nav ul li div p:last-child{
    font-size: 14px;
}
header nav ul li .enter{
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    color: white;
    background-color: red;
    border-radius: 50%;
}
header .selectList{
    width: 100%;
    background-color: rgba(255,255,255,0.8);
    position: absolute;
    z-index: 1;
    display: none;
}
header .selectList ul{
    width: 60%;
    margin: 0 auto;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex: 1;
}
header .selectList ul li{
    margin: 2rem;
    text-align: center;
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
header .selectList img{
    width: 22rem;
    height: 11.5rem;
}
header .selectList .border{
    background-color: red;
    border: 1px solid red;
    border-radius: 5px;
    width: 50%;
    margin: 0 auto;
}
.address{
    width: 100%;
    border-bottom: 1px solid lightgray;
}
.address div{
    width: 1170px;
    height: 50px;
    line-height: 50px;
    margin: 0 auto;
    font-size: 14px;
}
.product{
    width: 100%;
    margin: 50px 0;
}
.product_box{
    width: 1170px;
    margin: 0 auto;
}
.product_box .introduce .pic{
    float: left;
}
.product_box .introduce .pic .main_pic{
    width: 450px;
    height: 450px;
    float: left;
}
.product_box .introduce .pic .other{
    width: 90px;
    margin-left: 460px;
    position: relative;
}
.product_box .introduce .content{
    width: 50%;
    height: 450px;
    margin-left: 50%;
    padding-left: 20px;
}
.product_box .introduce .content button{
    outline: none;
    height: 45px;
    width: 250px;
    border-radius: 10px;
    background-color: rgb(10,62,119);
    border: none;
    color: white;
    margin: 10px 0;
    cursor: pointer;
}
.product_box .introduce .content .firstBtn{
    margin-top: 70px
}
.product_box .details{
    margin-top: 50px;
}
.product_box .details .details_back{
    width: 100%;
    min-height: 605px;
    margin-bottom: 50px;
    background-color: rgb(246,248,250);
	padding: 5px;
}
.product_box .details .details_back img{
	max-width: 100%;
}
.product_box .relatedPro .pro_box ul{
    display: flex;
    justify-content: space-between;
    min-height: 335px;
    overflow: hidden;
}
.product_box .relatedPro .pro_box ul li{
    width: 280px;
    height: 330px;
    box-shadow: 0 0 10px #eee;
    text-align: center;
    margin-bottom: 5px;
	border-radius: 5px;
	overflow: hidden;
}
.product_box .relatedPro .pro_box ul li p{
    margin-top: 10px;
}
.banner img{
	width: 100%;
	min-height: 150px;
	object-fit: cover;
}
footer{
    width: 100%;
    color: white;
    font-size: 1.5rem;
    overflow: hidden;
}
footer .box1{
    height: 17.8rem;
    width: 100%;
    background-color: rgba(0,0,0,0.8);
}
footer .box1>div{
    width: 80%;
    height: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
}
footer>div:last-child>p{
    width: 70%;
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
}
footer img{
    height: 11rem;
    width: 12.5rem;
}
footer>div>div>div>p>span{
    display: inline-block;
    width: 100px;
    margin-right: 0.5rem;
    margin-top: 1rem;
}
footer>div>div>div>p:first-child{
    width: 10rem;
    border-bottom: 1px solid gray;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    margin-top: 2rem;
    font-size: 1.8rem;
}
.next{
    position: absolute;
    bottom: -31px;
    height: 25px;
    cursor: pointer;
}
.prev{
    position: absolute;
    top: -31px;
    height: 25px;
    cursor: pointer;
}
.swiper-container{
    height: 388px;
    margin-top: 31px;
}
.swiper-slide{
    max-height: 90px !important;
    height: auto !important;
    cursor: pointer;
}
@media(max-width:1250px){
    header{
        height: 120px;
    }
    header .selectList ul{
        font-size: 12px;
    }
    header .selectList ul img{
        width: 20rem;
        height: 10rem;
    }
    .address div{
        width: 990px;
    }
    .product_box{
        width: 980px;
        font-size: 13px;
    }
    .product_box .introduce .pic .main_pic{
        width: 360px;
        height: 360px;
    }
    .product_box .introduce .pic .other{
        width: 70px;
        margin-left: 370px;
    }
    .product_box .introduce .content{
        height: 360px;
        padding-left: 10px;
    }
    .product_box .introduce .content button{
        height: 40px;
        width: 360px;
    }
    .product_box .introduce .content .firstBtn{
        margin-top: 30px
    }
    .product_box .details .details_back{
        width: 100%;
		min-height: 250px;
    }
    .product_box .relatedPro .pro_box ul{
        flex-wrap: wrap;
    }
    footer{
        font-size: 13px;
    }
    footer .box1>div{
        width: 100%;
    }
    .next{
        bottom: -25px;
        height: 19px;
    }
    .prev{
        top: -25px;
        height: 19px;
    }
    .swiper-container{
        height: 310px;
        margin-top: 25px;
    }
    .swiper-slide{
        height: 70px !important;
        margin-bottom: 8px !important;
    }
}
@media(max-width:990px){
    header{
        height: 100px;
    }
    header .title{
        width: 100%;
        justify-content: center;
    }
    header .title img{
        width: 50%;
    }
    .bigScreen2{
        display: none;
    }
    h2{
        margin-bottom: 15px;
		font-size: 15px;
    }
    .address div{
        width: 760px;
    }
    .product_box{
        width: 760px;
        font-size: 12px;
    }
    .product_box .introduce .pic .main_pic{
        width: 280px;
        height: 280px;
    }
    .product_box .introduce .pic .other{
        width: 55px;
        margin-left: 290px;
    }
    .product_box .introduce .content{
        height: 280px;
        padding-left: 5px;
    }
    .product_box .introduce .content button{
        height: 30px;
        width: 280px;
        margin-top: 5px
    }
    .product_box .introduce .content .firstBtn{
        margin-top: 10px
    }
    .product_box .details .details_back{
        width: 100%;
        min-height: 440px;
    }
    .product_box .relatedPro .pro_box ul{
        min-height: 255px;
        flex-wrap: wrap;
    }
    .product_box .relatedPro .pro_box ul li{
        width: 210px;
        height: 250px;
        box-shadow: 0 4px 5px lightgray;
        text-align: center;
        margin-bottom: 5px;
    }
    .product_box .relatedPro .pro_box ul li p{
        margin-top: 10px;
    }
    footer .box1{
        display: none;
    }
    .next{
        bottom: -20px;
        height: 15px;
    }
    .prev{
        top: -20px;
        height: 15px;
    }
    .swiper-container{
        height: 240px;
        margin-top: 20px;
    }
    .swiper-slide{
        height: 55px !important;
        margin-bottom: 6px !important;
    }
}
@media(max-width:770px){
    html {
        font-size: 10px;
    }
    header .title img{
        width: 60%;
    }
    .rotateImg img{
        height: 100px;
    }
    .address div{
        width: 90%;
    }
    .product{
        margin: 30px auto;
    }
    .product_box {
        width: 600px;
        font-size: 12px;
    }
    .product_box .introduce .pic{
        float: none;
        margin: 0 auto;
        display: flex;
        justify-content: center;
    }
    .product_box .introduce .pic .main_pic{
        width: 280px;
        height: 280px;
    }
    .product_box .introduce .pic .other{
        width: 55px;
        margin-left: 5px;
    }
    .product_box .introduce .content{
        width: 100%;
        height: 200px;
        padding-left: 0;
        margin-left: 0;
    }
    .product_box .introduce .content button{
        height: 30px;
        width: 49%;
        font-size: 12px;
    }
    .product_box .introduce .content .firstBtn{
        margin-top: 10px
    }
    .product_box .details{
        margin-top: 10px;
    }
    .product_box .details .details_back{
        width: 100%;
        mini-height: 250px;
        margin-bottom: 20px;
    }
    .product_box .relatedPro .pro_box ul{
        min-height: 195px;
        flex-wrap: wrap;
    }
    .product_box .relatedPro .pro_box ul li{
        width: 160px;
        height: 190px;
        box-shadow: 0 4px 5px lightgray;
        text-align: center;
        margin-bottom: 5px;
    }
    .product_box .relatedPro .pro_box ul li p{
        margin-top: 5px;
    }
    footer .box1{
        display: none;
    }
    footer>div:last-child>p{
          width: 90%;
    }
    footer .none{
        display: none;
    }
    .next{
        bottom: 0;
    }
    .prev{
        top: 0;
    }
}
@media(max-width:600px){
    header .title img{
        width: 70%;
    }
    .product_box {
        width: 90%;
        font-size: 12px;
    }
    .product_box .introduce .content{
        height: auto;
    }
    .product_box .details .details_back{
        min-height: 200px;
    }
    .product_box .relatedPro .pro_box ul{
        min-height: 460px;
        flex-wrap: wrap;
        overflow: inherit;
    }
    .product_box .relatedPro .pro_box ul li{
        width: 200px;
        height: 230px;
        box-shadow: 0 4px 5px lightgray;
        text-align: center;
        margin-bottom: 5px;
    }
    .product_box .relatedPro .pro_box ul li p{
        margin-top: 5px;
    }
}
@media(max-width:420px){
    header .title img{
        width: 70%;
    }
    .nav-btn{
        right: 10px!important;
        top: 40px!important;
    }
    .icon-bar{
        width: 20px!important;
        margin-top: 5px!important;
    }
    .product_box {
        width: 90%;
        font-size: 12px;
    }
    .product_box .introduce .pic .main_pic{
        width: 80%;
        height: 250px;
    }
    .product_box .introduce .pic .other{
        width: 45px;
    }
    .product_box .introduce .content button p{
        overflow:hidden;
        text-overflow:ellipsis;
        display:-webkit-box;
        -webkit-line-clamp:1;
        -webkit-box-orient:vertical;
    }
    .product_box .relatedPro .pro_box ul{
        min-height: 370px;
        flex-wrap: wrap;
        overflow: inherit;
    }
    .product_box .relatedPro .pro_box ul li{
        width: 48%;
        height: 180px;
        box-shadow: 0 4px 5px lightgray;
        text-align: center;
        margin-bottom: 5px;
    }
	.product_box .relatedPro .pro_box img{
		height: 130px;
		object-fit: cover;
	}
    .product_box .relatedPro .pro_box ul li p{
        margin-top: 5px;
    }
    .next{
        height: 13px;
    }
    .prev{
        height: 13px;
    }
    .swiper-container{
        height: 210px;
        margin-top: 20px;
    }
    .swiper-slide{
        height: 45px !important;
        margin-bottom: 10px !important;
    }
}