.pc {
    display: inline-block;
}
.m {
    display: none;
}
.scroll-icon {
    bottom: 40px;
}
.banner {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    width: 100%;
    height: 540px;
}
.banner h1 {
    font-size: 48px;
}
.bn-1 {
    background: url(../img/jangin_company_pc.jpeg)no-repeat center/cover;
}
.bn-2 {
    background: url(../img/jangin_performance_pc.jpeg)no-repeat center/cover;
}
.bn-3 {
    background: url(../img/jangin_inquiry_pc.jpeg)no-repeat center/cover;
}
.bn-4 {
    background: url(../img/jangin_customer_pc.jpeg)no-repeat center/cover;
}
.sub-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 70px 10px;
}
.form-section {
    padding: 140px 10px;
}
.sub-section > img {
    width: 100%;
    max-width: 1400px;
    object-fit: cover;
}
@media screen and (max-width: 1366px) {
    .banner h1 {
        font-size: 44px;
    }   
}
@media screen and (max-width: 868px) {
    .banner h1 {
        font-size: 35px;
    }   
}
@media screen and (max-width: 800px) {
    .pc {
        display: none;
    }
    .m {
        display: inline-block;
    }
    .bn-1 {
        background: url(../img/jangin_company_m.jpeg)no-repeat center/cover;
    }
    .bn-2 {
        background: url(../img/jangin_performance_m.jpeg)no-repeat center/cover;
    }
    .bn-3 {
        background: url(../img/jangin_inquiry_m.jpeg)no-repeat center/cover;
    }
    .bn-4 {
        background: url(../img/jangin_customer_m.jpeg)no-repeat center/cover;
    }
}