.bas-title-fg{
    color: #fc6;
    font-weight: bolder;
}
.bas-title-ch{
    font-size: 24px;
}
.bas-title-en{
    font-size: 16px;
    color: #999;
}
.bas-about{
    padding: 100px 0;
}
.bas-about .center{
    display: flex;
    justify-content: space-between;
}
.about-body{
    width: 480px;
    font-size: 14px;
    color: #999;
    line-height: 30px;
    text-indent: 2em;
}
.about-img{
    width: 400px;
    height: 260px;
}
.about-img img{
    width: 100%;
    height: 100%;
}

.bas-product{
    padding: 60px 0;
}
.bas-product .center{
    display: flex;
    justify-content: space-between;
}
.product-left{
    width: 360px;
}
.product-p{
    margin-top: 100px;
    font-size: 14px;
    color: #666;
    line-height: 30px;
    text-indent: 2em;;
}
.product-right{
    width: 800px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.product{
    position: relative;
    width: 380px;
    height: 260px;
    margin-bottom: 20px;
}
.product:hover img{
    transform: scale(1.2);
}
.product-img{
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.product img{
    width: 100%;
    height: 100%;
    transition-duration: 0.5s;
}
.product-title{
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 40px;
    line-height: 40px;
    text-align: center;
    background-color: rgba(0,0,0,.6);
    color: #fff;
}

.bas-case{
    padding: 80px 0;
}
.cases{
    margin-top: 60px;
    display: flex;
    justify-content: space-between;
}
.case{
    width: 280px;
    padding: 20px;
}
.case:hover{
    box-shadow: 0 0 16px 0 rgba(7, 17, 27, .1);
}
.case:hover img {
    transform: scale(1.2);
}
.case-img{
    width: 280px;
    height: 200px;
    overflow: hidden;
}
.case-img img{
    width: 100%;
    height: 100%;
    transition-duration: 0.5s;
}
.case-title{
    line-height: 40px;
    font-size: 16px;
    color: #666;
    text-align: center;
}
.bas-ys{
    padding: 100px 0;
}
.bas-title{
    margin-bottom: 100px;
}
.ys{
    display: flex;
    justify-content: space-between;
}
.ys-body{
    width: 540px;
    height: 190px;
    padding: 100px 80px 80px;
}
.ys-p{
    margin-top: 40px;
    font-size: 14px;
    color: #999;
    line-height: 30px;
}
.ys-img {
    width: 700px;
    height: 400px;
}
.ys-img img{
    width: 100%;
    height: 100%;
}