.materials-section {
    width: 90%;
    max-width: 1350px;
    margin: 75px auto 60px;
    box-sizing: border-box;
}

.materials-section .materials-section__title {
    font-weight: bold;
    color: #333333;
    text-align: left;
    position: relative;
    box-sizing: border-box;
    margin-top: 20px;
}

.materials-section .materials-section__description {
    font-weight: 300;
    color: #000000;
    line-height: 32px;
    box-sizing: border-box;
    margin-top: 15px;
}

.materials-section .materials-section__content {
    width: 100%;
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.materials-section .materials-section__content-left {
    width: 519px;
    box-sizing: border-box;
    border: 1px dashed #4E4AD9;
    padding: 22px 20px 30px;
}

.materials-section .materials-section__content-info {
    font-weight: 300;
    color: #000000;
    line-height: 32px;
}

.materials-section .materials-section__content-info .materials-section__content-info-title {
    font-weight: bold;
    color: #4E4AD9;
    margin-bottom: 20px;
}

.materials-section .materials-section__content-line {
    width: 100%;
    height: 1px;
    background: #BFBFBF;
    margin: 25px 0;
}

.materials-section .materials-section__content-left .materials-section__content-button-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.materials-section .materials-section__content-button-list .materials-section__content-button {
    padding: 5px 15px;
    background: #F5F5F5;
    border-radius: 5px;
    font-weight: bold;
    font-size: 18px;
    color: #000000;
    text-align: center;
    cursor: pointer;
    flex-shrink: 0;
}

.materials-section .materials-section__content-button-list .materials-section__content-button.active,
.materials-section .materials-section__content-button-list .materials-section__content-button:hover {
    background: #4E4AD9;
    color: #FFFFFF;
}

.materials-section .materials-section__content-description-list {
    margin-top: 25px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.materials-section .materials-section__content-description-item {
    display: flex;
    align-items: flex-start;
}


.materials-section .materials-section__content-right {
    flex: 1;
    box-sizing: border-box;
}

.materials-section .materials-section__content-right .materials-section__content-image {
    width: 100%;
    max-width: 670px;
    height: 100%;
}

.materials-section .materials-section__content-right .materials-section__content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media screen and (max-width:760px) {
    .materials-section .materials-section__content {
        flex-direction: column;
    }

    .materials-section .materials-section__content-left,
    .materials-section .materials-section__content-right {
        width: 100%;
        max-width: 100%;
    }

    .materials-section .materials-section__content-right .materials-section__content-image {
        height: auto;
    }
}


@media screen and (min-width:760px) and (max-width:1020px) {
    .materials-section .materials-section__content {
        flex-direction: column;
    }

    .materials-section .materials-section__content-left,
    .materials-section .materials-section__content-right {
        width: 100%;
        max-width: 100%;
    }

    .materials-section .materials-section__content-right .materials-section__content-image {
        height: auto;
    }
}