.bg-img {
  height: 30em;
  background-image: url(../image/banner.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  align-items: center;
  background-position: center;
}

.box-iocbox>div:nth-of-type(even){
  box-sizing: border-box;
  padding: 0 0 0 5.1em;
}

.ioc-maxbox{
  margin-bottom:3.25em;
}
.text-p>p{
  margin: 0.7125em 0;
}
@media (min-width: 1080.999px) and (max-width: 10000000px){
  .hide-350px,.hide-920px{
    display: none;
  }
  .bg-img{
    background-size: 2560px;
  }
}
@media (min-width: 800.999px) and (max-width: 1080px) {
  .hide-1080px,.hide-350px{
    display: none;
  }

  .box-iocbox{
    width: 100%;
    justify-content: space-between;

  }
  .title-top>div:nth-child(1)>span{
    font-size: 2.75em;
  }

  .title-top>div:nth-child(2)>span{
    font-size: 1.125em;
  }
  .text-butt{
    font-size: 1.5em;
  }
  .bg-img{
    height: 25em;
  }
  .text-p>p{
    font-size: 0.875em;
  }
  .ioc-img>img{
    width: 4em;
  }
  .box-iocbox>div:nth-of-type(even){
    box-sizing: border-box;
    padding: 0;
  }
  .ioc-maxbox{
    width: 100% !important;
    margin-top:5em;
    margin-bottom: 1.25em;
    padding-left: 13.388889%;
    padding-right: 9.203704%;
    box-sizing: border-box;
  }
  .box-iocbox>div{
    width: 46.868455%;
  }
}

@media (min-width: 0px) and (max-width: 800px) {
  .bg-img{
  height: 18.5em;
  }
  .hide-1080px,.hide-920px{
    display: none;
  }
.box-iocbox{
  width: 21.875em;
  flex-wrap: wrap;
}
  .box-iocbox>div{
    width: 100%;
    padding: 0;
    text-align: center;
    margin-bottom: 2.5em;
  }
  .box-iocbox>div:nth-of-type(even){
    padding: 0;
  }
.title-top>div:nth-child(1)>span{
  font-size: 2em;
}
  .title-top>div{
    width: 9.7em;
  }
  .title-top>div:nth-child(2)>span{
   font-size: 0.875em;
 }
  .text-butt{
    font-size: 1.375em;
  }
  .text-p>p{
    font-size: 0.75em;
  }
  .ioc-img>img{
    width: 3em;
  }
  .ioc-maxbox{
    margin-top: 3em;
    margin-bottom:1.25em;
  }
}