.main {
    background-color: white;
}

#introduce {
    display: flex;
    flex: auto;
}

h3 {
    text-align: center;
    padding-top: 100px;
    padding-right: 100px;
    padding-left: 100px;
    padding-bottom: 100px;
    font-size: 20px;
    line-height: 50px;
    font-family: 'M PLUS 1p', sans-serif;
    font-weight: 600;
}

h2 {
    font-size: 30px;
    text-align: left;
    padding-left: 50px;
}

h1 {
    font-size: 40px;
    text-align: right;
    padding-right: 100px;
    font-family: 'Noto Sans JP', sans-serif;
}

#introduce img {
    display: block;
    width: 20%;
    height: 20%;
    margin: 100px 30px 100px 70px;
    box-shadow: 20px 20px 0 #FFAD90;
}

main img {
    border-radius: 10px;
}

#main_title {
    font-family: 'Dela Gothic One', cursive;
    margin-right: auto;
    margin-left: auto;
    padding-top: 30px;
}

#introduce {
    text-indent: 1em;
    font-size: 2rem;
    margin-left: auto;
    margin-right: auto;
}

.introduce_pic {
    display: block;
    flex: auto;
    padding: 30px;
}

#introduce h3 {
    text-align: center;
    padding-top: 100px;
    padding-right: 100px;
    padding-left: 100px;
    padding-bottom: 100px;
    font-size: 20px;
    line-height: 50px;
    font-family: monospace;
    font-weight: 600;
}

.ope_title {
    border-left: 10px solid #FFAD90;
    padding: 15px;
    font-family: 'Noto Sans JP', sans-serif;
    margin-left: 50px;
    margin-top: 50px;
    font-size: 40px;
}

.ope_mogi {
    margin-top: 50px;
    border-left: 10px solid #FFAD90;
    font-family: 'Noto Sans JP', sans-serif;
    padding: 15px;
    text-align: left;
    margin-left: 50px;
    margin-top: 50px;
}

@media (max-width: 767px) {
    h1.ope_mogi {
        max-width: 100%;
        text-align: left;
        margin-left: 10px;
        font-size: 20px
    }
    div#introduce img {
        max-width: 100%;
        margin: 20px 0 0 30px;
        width: 200px;
        display: block;
        box-shadow: 10px 10px #FFAD90;
    }
    .main .introduce h3 {
        max-width: 100%;
        padding: 0 0 0 0;
        line-height: 25px;
        font-size: 13px;
        padding: 0 10px 0 10px;
        margin-top: 30px;
    }
    div#introduce_pic {
        display: none;
    }
    div#sp_introduce_pic {
        display: flex;
        flex-wrap: wrap;
        margin: 40px;
        max-width: 100%;
    }
}