.our_business__page--inner {
    max-width: 1000px;

}

.our_business__items {
    display: flex;
    justify-content: space-between;
    color: #333 !important;
    margin-bottom: 180px;
    max-width: 800px;
    margin: 100px auto;
}


.our_business__item1 {
    display: flex;
    align-items: center;
}


.our_business__item1 .our_business__item--text {
    margin-top: 30px;
}

.our_business__item1 img {
    width: 400px;
}

.our_business__item2 {
    width: 48%;
    display: flex;
    flex-direction: column;
}

.our_business__item3 {
    width: 30%;
    display: flex;
    flex-direction: column;
}

.our_business__item3--box {
    max-width: 900px;
}

.our_business__item--text {
    flex-grow: 1;
}

.our_business__item--name {
    background: linear-gradient(transparent 60%, yellow 60%);
    display: inline;
    /* ↑ display: inline-block; でも可 */
    color: #333;
    margin-bottom: 30px;
    font-weight: bold;
    align-self: flex-start;
    /* 幅がテキストの長さにフィットするようにする */
}

.our_business__box--title {
    color: #333;

}


.our_business__item1>.our_business__item--img {
    margin-right: 20px;
}

.our_business__item--text {
    line-height: 1.7;
    margin-bottom: 40px;
}






@media (max-width: 450px) {

    .our_business__item1>.our_business__item--img {
        margin-right: 0;
    }

    .our_business__items {
        margin: 50px auto;
    }

    .our_business__item1 {
        display: flex;
        flex-direction: column-reverse;
    }

    .our_business__item1 img {
        width: 100%;
    }

    .our_business__item3 {
        width: 100%;
        margin-bottom: 30px;
    }

    .our_business__item2 {
        width: 100%;
        margin-bottom: 30px;
    }

    .our_business__item1 .our_business__item--text {
        margin-top: 15px;
    }

}