.main-banner {
    width: 100%;
    max-width: 1420px;
    margin: 0 auto;
    padding: 0 20px;

    border-radius: 16px;
    background-color: #FFEE00;
}

.main-banner_inner {
    text-align: center;
    padding: 20px 0 10px 0;
}

.main-banner_inner h1 {
    display: block;
    margin-bottom: 18px;

    font-weight: 800;
    letter-spacing: 0;

    font-size: 24px;
    color: #000000;
}

.main-banner p {
    display: block;
    font-size: 12px;

    color: #000000;
}

.main-banner a:first-of-type {
    display: block;
    margin-top: 12px;
    font-size: 12px;
    text-decoration: underline;

    color: #000000;
}

.main-banner_inner-btn {
    display: block;
    margin: 18px auto 0 auto;
    padding: 16px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
    line-height: 100%;
    text-decoration: none;

    background-color: #000000;
    color: #FFEE00;
}

.main-banner_inner-btn:hover {
    filter: brightness(1.2);
}
.main-banner_photo {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: end;
}

.main-banner_photo > img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.about_cards {
    margin: 36px auto 0 auto;
    max-width: 1100px;
}

.how-use {
    margin: 36px auto 0 auto;
}

.how-use_cards {
    max-width: 1000px;
}

.how-use_title {
    color: #000000;
}

@media (min-width: 390px) {
    .main-banner_inner {
        padding: 30px 0;
    }
    .main-banner_inner h1 {
        font-size: 28px;
    }

    .main-banner_inner-btn {
        width: fit-content;
        margin: 18px auto 0 auto;
        padding: 18px 24px;
        border-radius: 12px;
    }

    .main-banner_photo > img {
        width: 300px;
    }
}

@media (min-width: 480px) {
    .main-banner {
        padding: 0 30px;
    }

    .main-banner_inner h1 {
        font-size: 32px;
        margin-bottom: 24px;
    }

    .main-banner p, .main-banner a:first-of-type {
        font-size: 16px;
    }

    .main-banner_inner-btn {
        margin: 18px auto 0 auto;
        padding: 17px 28px;
        border-radius: 16px;
        font-size: 16px;
    }

    .main-banner_photo > img {
        width: 450px;
    }
    /**/
}

@media (min-width: 576px) {
    .main-banner {
        padding: 0 40px;
    }

    .main-banner_inner {
        padding: 40px 0;
    }

    .main-banner_inner h1 {
        font-size: 36px;
    }

    .main-banner p, .main-banner a:first-of-type {
        font-size: 18px;
    }

    /**/

    .about_cards {
        flex-direction: row;
        flex-wrap: wrap;
        margin-top: 50px;
    }

    .about_cards .dts-card {
        width: calc(50% - 8px);
    }

    .about_cards .dts-card:last-of-type {
        width: 100%;
    }

    .how-use {
        margin-top: 50px;
    }

    /**/
}

@media (min-width: 768px) {
    .main-banner {
        display: flex;
        justify-content: space-between;
        flex-wrap: nowrap;

        padding: 0 0 0 20px;
    }

    .main-banner_inner {
        padding: 20px 0;
    }

    .main-banner_inner-btn {
        padding: 19px 32px;
        border-radius: 20px;
        font-size: 18px;
    }

    .main-banner_photo  {
        justify-content: right;
    }

    .main-banner_photo > img {
        width: 280px;
    }

    .how-use_cards {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .how-use_cards .dts-card {
        max-width: calc(50% - 8px);
        width: 100%;
        justify-content: space-between;
    }
}

@media (min-width: 880px) {
    .main-banner {
        padding: 0 20px 0 50px;
    }

    .main-banner_inner {
        padding: 35px 0;
    }

    .main-banner_photo > img {
        width: 320px;
    }

    /*    */
}

@media (min-width: 992px) {
    .main-banner {
        padding: 0 20px 0 50px;
    }
    .main-banner_inner {
        padding: 50px 0;
    }

    .main-banner_inner h1 {
        font-size: 40px;
    }

    .main-banner_inner-btn {
        padding: 21px 34px;
    }

    .main-banner_photo > img {
        width: 400px;
    }

    .about_cards .dts-card {
        width: calc((100% - 32px)/3);
    }

    .about_cards .dts-card:last-of-type {
        width: calc((100% - 32px)/3);
    }
}

@media (min-width: 1200px) {
    .main-banner {
        padding: 0 50px 0 100px;
        gap: 30px;
    }
    .main-banner_inner {
        padding: 50px 0;
    }

    .main-banner_inner h1 {
        font-size: 44px;
    }

    .main-banner_photo > img {
        width: 450px;
    }
}

@media (min-width: 1400px) {
    .main-banner {
        padding: 0 100px;
    }
}