.brief-culture{
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    
}
.brief-culture .list{
    display: flex;
    justify-content:space-between;
}
.brief-culture .list .left{
    width: 50%;
}
.brief-culture .list .left .item{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 40px 0;
}
.brief-culture .list .left .item .item1{
    font-size: 40px;
    color:var(--titleColor);
    margin-right: 5px;
}
.brief-culture .list .left .item .item2 .title{
    font-size: 18px;
    font-weight: bold;
    position: relative;
}
.brief-culture .list .left .item .item2 .title:after{
    width: 1em;
    border-bottom: 1px solid #999;
    content:"";
    position: absolute;
    bottom: -8px;
    left: 0;
}
.brief-culture .list .left .item .item2 .seo_title{
    color: #555;
    margin-top: 20px;
}
.brief-culture .list .right{
    width: 50%;
    display: flex;
    flex-wrap: wrap;
}
.brief-culture .list .right .item{
    width: calc(50% - 20px);
    margin: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    justify-content: center;
}
.brief-culture .list .right .item .iconfont {
    width: 50px;
    border-radius: 50%;
    background: var(--titleColor);
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.brief-culture .list .right .item .iconfont:before {
    font-size: 30px;
    color: #fff;
}
.brief-culture .list .right .item .title{
    font-weight: bold;
    font-size: 20px;
    line-height: 3;
}
.brief-culture .list .right .item .description{
    font-size: 12px;
    color: #555;
    max-width: 150px;
}
.brief .home-product .home-title b{
    border-bottom: 0;
}
.brief .home-product .home-title b::after{
    display: none;
}
.brief .home-product .home-title span{
    margin-top: -10px;
    position: relative;
    font-size: 18px;
}
.brief .home-product .home-title span:before{
    content: "";
    width: 200px;
    border-top: 1px solid #ccc;
    position: absolute;
    left: -220px;
    top: 50%;
    transform: translateY(-50%);
}
.brief .home-product .home-title span:after{
    content: "";
    width: 200px;
    border-top: 1px solid #ccc;
    position: absolute;
    left: 95px;
    top: 50%;
    transform: translateY(-50%);
}
.brief-advantages{
    background-repeat: no-repeat;
    background-size: contain;
    background-position: top center;
    padding-top:80px ;
}
.brief-advantages .home-title{
    color: #fff;
}
.brief-advantages .box{
    max-width: 100%;
    padding: 0px 0 0;
}
.brief-advantages .home-title span{
    color: #fff;
}
.brief-advantages .box{
        background-color: #999;
    filter: brightness(0.7);
}
.brief-advantages .list{
    display:flex;
    padding-bottom:80px ;
    flex-direction: column;
}
.brief-advantages .list .top{
    display: flex;
    justify-content: space-between;
    
}
.brief-advantages .list .top .top-top img{
    width: 100%;
    object-fit: cover;
    height: 100%
}
.brief-advantages .list .top .top-left{
    width: calc(33.33% - 20px);
    margin: 10px;
}
.brief-advantages .list .top .top-left .top-list{
    display: flex;
    flex-wrap: wrap;
    margin-top: 20px;
    justify-content: space-between;
} 
.brief-advantages .list .top .top-left .top-list img:nth-child(1),.brief-advantages .list .top .top-left .top-list .title{
    object-fit: cover;
    margin-bottom: 20px;
}
.brief-advantages .list .top .top-left .top-list img:nth-child(1),.brief-advantages .list .top .top-left .top-list img:nth-child(3){
    width: calc(40% - 10px);
    object-fit: cover;
}
.brief-advantages .list .top .top-left .top-list .title,.brief-advantages .list .top .top-left .top-list img:nth-child(4){
    width: calc(60% - 10px);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    background: var(--titleColor);
    color: #fff;
    font-weight: bold;
    object-fit: cover;
}
.brief-advantages .list .top .top-middle{
    width: calc(33.33% - 20px);
    margin: 10px;
    display: flex;
    flex-direction: column;
}
.brief-advantages .list .top .top-middle .middle-top img{
    width: 100%;
    height: 100%;    
    object-fit: cover;
}
.brief-advantages .list .top .top-middle .middle-list {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    height: 100%;
}
.brief-advantages .list .top .top-middle .middle-list .list-left{
    width: calc(30% - 10px);
}
.brief-advantages .list .top .top-middle .middle-list .list-left img{
    display: block;
    width: 100%;
    height:calc(50% - 10px);
    object-fit: cover;
}
.brief-advantages .list .top .top-middle .middle-list .list-left img:nth-child(1){
    margin-bottom: 20px;
    object-fit: cover;
}
.brief-advantages .list .top .top-middle .middle-list .left-right{
    width: calc(70% - 10px);
}
.brief-advantages .list .top .top-middle .middle-list .left-right img{
    width: 100%;
    display: block;
    height: 100%;
    object-fit: cover;
}
.brief-advantages .list .top .top-right{
    width: calc(33.33% - 20px);
    margin: 10px;
    display: flex;
    justify-content: space-between; 
    flex-wrap: wrap;
}
.brief-advantages .list .top .top-right img{
    width: calc(50% - 10px);
    object-fit: cover;
    display: block;
}
.brief-advantages .list .top .top-right img:nth-child(4),
.brief-advantages .list .top .top-right img:nth-child(5){
    margin-bottom: 20px;
}
.brief-advantages .list .top .top-right .title{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    background: var(--titleColor);
    color: #fff;
    font-weight: bold;
    margin: 20px 0px;
}
.brief-advantages .list .middle{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 10px;
}
.brief-advantages .list .middle img{
    width: calc(20% - 20px);
    object-fit: cover;
}
.brief-advantages .list .bottom{
    display: flex;
    justify-content: space-between;
    margin: 10px;
}
.brief-advantages .list .bottom .bottom-left ,
.brief-advantages .list .bottom .bottom-middle,
.brief-advantages .list .bottom .bottom-right{
    width: calc(33.33% - 20px);
}
.brief-advantages .list .bottom .bottom-left img,
.brief-advantages .list .bottom .bottom-middle img,
.brief-advantages .list .bottom .bottom-right img{
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}
.brief-advantages .list .bottom .bottom-middle{
    display: flex;
    flex-direction: column;
}
.brief-advantages .list .bottom .bottom-middle .title{
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    background: var(--titleColor);
    color: #fff;
    font-weight: bold;
    margin-bottom: 20px;
    padding: 30px 0;
}
.brief-map{
    padding-top: 80px;
}
@media screen and (max-width:600px){
    .brief-map{
        padding-top: 20px;
    }
    .brief-culture .list{
        flex-direction: column;
    }
    .brief-culture .list .left{
        width: 100%;
    }
    .brief-culture .list .left .item{
        padding: 20px 0;
    }
    .brief-culture .list .right{
        width: 100%;
    }
    .brief-advantages{
        background: #6b6b6b;
        padding-top: 20px;
    }
    .brief-advantages .list{
        padding-bottom: 0;
    }
    .brief-advantages .list .top{
        flex-direction: column;
    }
    .brief-advantages .list .top .top-left,.brief-advantages .list .top .top-middle,.brief-advantages .list .top .top-right{
        width: 100%;
        margin: 0;
    }
    .brief-advantages .list .top .top-left .top-list .title{
        font-size: 20px;
    }
    .brief-advantages .list .top .top-middle{
        margin: 20px 0;
    }
    .brief-advantages .list .top .top-right .title{
        padding: 20px 0;
        font-size: 20px;
    }
    .brief-advantages .list .middle img{
        width: calc(33.33% - 10px);
        
    }
    .brief-advantages .list .middle img:nth-child(4),.brief-advantages .list .middle img:nth-child(5){
        width: calc(50% - 10px);
        margin-top: 20px;
    }
    .brief-advantages .list .bottom{
        flex-direction: column;
    }
    .brief-advantages .list .bottom .bottom-left, .brief-advantages .list .bottom .bottom-middle, .brief-advantages .list .bottom .bottom-right{
        width: 100%;
    }
    .brief-advantages .list .bottom .bottom-middle .title{
        font-size: 20px;
        padding: 20px 0;
    }
}