.banner{
    width: 100%;
    height: auto;
    display: inline-block;
}
.banner img{
    width: 100%;
}
.header {
    width: 100%;
    height: auto;
    color: black;
    position: static;
    top: 0px;
}
.case{
    width: 100%;
    height: auto;
    display: inline-block;
}
.case-box{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 3%;
}
.case-box ul{
    width: 100%;
    height: auto;
    display: inline-block;
}
.case-box li{
    width: 29.5%;
    height: auto;
    display: inline-block;
    margin-bottom: 2%;
    border: 1px solid#e0e0e0;
    padding: 15px;
    margin-right: 2%;
}
.case-box li img{
    width: 100%;
}
.case-box li:nth-of-type(3n) {
    margin-right: 0%;
}
.case-box li h3{
    text-align: center;
    color: #050505;
    font-size: 18px;
    padding: 15px 0;
    font-weight: normal;
}
@media screen and (max-width: 1024px) and (min-width: 0px) {
    .banner {
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 12%;
}
.case-box li {
    width: 90%;
    height: auto;
    display: inline-block;
    margin-bottom: 6%;
    border: 1px solid #e0e0e0;
    padding: 15px;
    margin-right: 2%;
}
.case-box li h3 {
    text-align: center;
    color: #050505;
    font-size: 16px;
    padding: 15px 0;
    font-weight: normal;
}


}