@charset "UTF-8";

@media screen and (max-width: 1470px){
    .introduction .top-in{
        width: 95%;
    }
}

@media screen and (max-width: 1270px){
    .introduction .easy{
        width: 95%;
    }
}

@media screen and (max-width: 1200px){
    .introduction .top-in .left,
    .introduction .top-in .right{
        width: 100%;
    }
}

@media screen and (max-width: 425px){
    .introduction {
        padding-top: 30px;
        padding-bottom: 30px;
    }
    .introduction .top-in .small-title {
        margin-bottom: 20px;
    }
    .introduction .top-in .small-title h2{
        margin-bottom: 5px;
        font-size: 18px;
    }
    .introduction .top-in .small-title p{
        font-size: 16px;
    }
    .introduction .top-in {
        margin: 0 auto 30px;
    }
    .introduction .top-in .left{
        text-align: justify;
    }
    .introduction .top-in .left p{
        font-size: 14px;
    }
    .introduction .easy > div:nth-of-type(1){
        margin-top: 50px;
    }
    .introduction .easy > div{
        margin-bottom: 60px;
    }
    .introduction .easy > div > div:nth-of-type(1){
        width: 50%;
    }
    .introduction .easy > div > div:nth-of-type(2) div h3{
        margin-bottom: 5px;
        font-size: 16px;
    }
    .introduction .easy > div > div:nth-of-type(2) div p {
        font-size: 12px;
        line-height: 20px;
    }
    .introduction .easy > div.round > div:nth-of-type(2) div p{
        margin-left: 0;
    }
    .introduction .easy > div.round > div:nth-of-type(2) div p:before{
        display: none;
    }
}

@media screen and (max-width: 375px){
    .introduction .easy > div{
        margin-bottom: 60px;
    }
}

@media screen and (max-width: 340px){
    .introduction .easy > div{
        margin-bottom: 100px;
    }
}