.about-fv {
    position: relative;
    width: 100%;
    height: 460px;
    overflow: hidden;
    color: #fff;
}

.about-fv__bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center 55%;
}

.about-fv__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .48);
}

.about-fv__breadcrumb {
    position: absolute;
    top: 120px;
    left: 58px;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 15px;
    font-weight: 400;
}

.about-fv__breadcrumb a {
    color: #fff;
    text-decoration: none;
    transition: opacity .3s;
}

.about-fv__breadcrumb a:hover {
    opacity: .65;
}

.about-fv__title {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 2;
    margin: 0;
    transform: translate(-50%, -50%);
    color: #fff;
    font-family:
            "Yu Mincho",
            "Hiragino Mincho ProN",
            serif;
    font-size: 52px;
    font-weight: 400;
    letter-spacing: .06em;
    white-space: nowrap;
}

.about-intro {
    padding: 70px 60px 110px;
    background: #fff;
}

.about-intro__inner {
    width: 100%;
    max-width: 1420px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 70px;
}

.about-intro__logo {
    width: 360px;
    flex-shrink: 0;
}

.about-intro__logo img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.about-intro__content {
    flex: 1;
    text-align: center;
}

.about-intro__content p {
    margin: 0;
    color: #111;
    font-size: 20px;
    font-weight: 400;
    line-height: 1.45;
    letter-spacing: .02em;
}

.about-intro__content p+p {
    margin-top: 50px;
}

.about-intro__content span {
    color: #d7a928;
}

/*悩み*/
.worries {
    width: 100%;
    padding: 80px 60px 150px;
    background: linear-gradient(110deg, #222 0%, #111 50%, #242424 100%);
    color: #fff;
}

.worries__inner {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
}

.worries__title {
    margin: 0 0 90px;
    text-align: center;
    color: #fff;
    font-size: 34px;
    font-weight: 400;
}

.worries__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 120px;
    row-gap: 65px;
}

.worries__item {
    display: flex;
    align-items: center;
    gap: 25px;
}

.worries__item img {
    width: 48px;
    height: 48px;
    display: block;
    object-fit: contain;
    flex-shrink: 0;
}

.worries__item p {
    margin: 0;
    color: #fff;
    font-size: 25px;
    font-weight: 400;
    line-height: 1.5;
    white-space: nowrap;
}

/*技術*/
.about-feature {
    width: 100%;
    padding: 16px 0;
    background: #171717;
}

.about-feature__item {
    width: 100%;
    height: 265px;
    display: flex;
    background: #fff;
}

.about-feature__item + .about-feature__item {
    margin-top: 16px;
}

.about-feature__item--reverse {
    flex-direction: row-reverse;
}

.about-feature__image {
    width: 36%;
    height: 100%;
    overflow: hidden;
    flex-shrink: 0;
}

.about-feature__image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .5s ease;
}

.about-feature__content {
    flex: 1;
    min-width: 0;
    padding: 48px 10%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #080808;
}

.about-feature__content h2 {
    margin: 0 0 38px;
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
}

.about-feature__content p {
    margin: 0;
    max-width: 620px;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.3;
}

.about-feature__image--machine img {
    transform: scale(1.2);
    transform-origin: 54% 26%;
    object-position: center;
}

.about-feature__image--room img {
    transform: scale(1.8);
    transform-origin: 54% 69%;
    object-position: center;
}

.about-feature__image--dot img {
    transform: scale(1.4);
    transform-origin: 54% 26%;
    object-position: center;
}

.about-feature__image--4d img {
    transform: scale(1.4);
    transform-origin: 86% 80%;
    object-position: center;
}

/*比較*/
.comparison {
    padding: 50px 20px 80px;
    background: #fff;
    color: #080808;
}

.sp-br {
    display: none;
}

.comparison__inner {
    width: 100%;
    max-width: 940px;
    margin: 0 auto;
}

.comparison__title {
    margin: 0;
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    line-height: 1.5;
}

.comparison__lead {
    margin-top: 45px;
}

.comparison__lead p {
    margin: 0;
    font-size: 17px;
    font-weight: 400;
    line-height: 1.35;
}

.comparison__subtitle {
    margin: 90px 0 48px;
    font-size: 23px;
    font-weight: 700;
}

.comparison__table-wrap {
    width: 100%;
}

.comparison__table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.comparison__table th,
.comparison__table td {
    height: 76px;
    padding: 8px 15px;
    border: 1px solid #222;
    vertical-align: middle;
}

.comparison__table thead th {
    height: 65px;
    background: #050505;
    color: #fff;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
}

.comparison__table thead th:first-child {
    width: 25.5%;
}

.comparison__table tbody th {
    width: 25.5%;
    background: #faf7ed;
    text-align: left;
    padding-left: 35px;
    font-size: 17px;
    font-weight: 700;
}

.comparison__table tbody td {
    background: #fff;
    text-align: center;
    font-size: 14px;
}

.comparison__table tbody td strong {
    display: block;
    font-size: 25px;
    font-weight: 400;
    line-height: 1;
}

.comparison__table tbody td span {
    display: block;
    margin-top: 3px;
    line-height: 1.3;
}

.comparison__table .comparison__scalp {
    border-left: 3px solid #d7aa2d;
    border-right: 3px solid #d7aa2d;
}

.comparison__table thead .comparison__scalp {
    border-top: 3px solid #d7aa2d;
}

.comparison__table tbody tr:last-child .comparison__scalp {
    border-bottom: 3px solid #d7aa2d;
}

/*ISO*/
.iso {
    padding: 70px 40px 100px;
    background: #fff;
}

.iso__inner {
    max-width: 1000px;
    min-height: 470px;
    margin: 0 auto;
    padding: 20px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 50px;
    background: #f8f5ef;
    box-shadow: 6px 8px 10px rgba(0, 0, 0, .18);
}

.iso__content {
    width: 600px;
    flex: none;
}

.iso__en {
    margin: 0 0 18px;
    color: #d7aa2d;
    font-size: 20px;
    font-weight: 400;
    font-family:
            "Yu Mincho",
            "Hiragino Mincho ProN",
            serif;
}

.iso__title {
    margin: 0;
    color: #080808;
    font-size: 40px;
    font-family:
            "Yu Mincho",
            "Hiragino Mincho ProN",
            serif;
    font-weight: 700;
    line-height: 1.4;
}

.iso__text {
    margin-top: 75px;
}

.iso__text p {
    margin: 0;
    color: #111;
    font-size: 20px;
    font-family:
            "Yu Mincho",
            "Hiragino Mincho ProN",
            serif;
    font-weight: 400;
    line-height: 2.2;
}

.iso__text p+p {
    margin-top: 5px;
}

.iso__image {
    width: 280px;
    height: 360px;
    flex-shrink: 0;
    overflow: hidden;
}

.iso__image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

/*安全*/
.safety {
    padding: 100px 50px 110px;
    background: linear-gradient(110deg, #222 0%, #111 52%, #242424 100%);
    color: #fff;
    font-family: "Noto Serif JP", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
}

.safety__inner {
    max-width: 1380px;
    margin: 0 auto;
}

.safety__heading {
    text-align: center;
}

.safety__heading h2 {
    margin: 0;
    font-size: 32px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: .03em;
}

.safety__heading p {
    margin: 32px 0 0;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.45;
    letter-spacing: .02em;
}

.safety__list {
    margin-top: 75px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
}

.safety__item {
    min-width: 0;
}

.safety__icon {
    width: 130px;
    height: 130px;
    margin: 0 auto 55px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.safety__icon img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.safety__item h3 {
    margin: 0 0 25px;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.5;
    white-space: nowrap;
}

.safety__item>p,
.safety__text p,
.safety__text li {
    font-size: 17px;
    font-weight: 400;
    line-height: 1.55;
    letter-spacing: .01em;
}

.safety__item>p,
.safety__text p {
    margin: 0;
}

.safety__text ul {
    margin: 5px 0;
    padding-left: 30px;
}

.safety__text li {
    padding-left: 5px;
}

/*faq*/
.about-faq {
    padding: 70px 20px 100px;
    background: #fff;
    color: #080808;
    font-family: "Noto Serif JP", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
}

.about-faq__inner {
    max-width: 720px;
    margin: 0 auto;
}

.about-faq__title {
    margin: 0 0 70px;
    text-align: center;
    font-size: 30px;
    font-weight: 600;
}

.about-faq__list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-faq__item {
    width: 100%;
    border: 1px solid #222;
}

.about-faq__question {
    width: 100%;
    min-height: 80px;
    padding: 18px 30px 18px 14px;
    display: flex;
    align-items: center;
    gap: 22px;
    border: 0;
    background: transparent;
    color: #080808;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.about-faq__q,
.about-faq__a {
    flex-shrink: 0;
    font-family: Arial, sans-serif;
    font-size: 28px;
    font-weight: 700;
    line-height: 1;
}

.about-faq__question-text {
    flex: 1;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.5;
}

.about-faq__toggle {
    position: relative;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    background: #050505;
}

.about-faq__toggle::before,
.about-faq__toggle::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    background: #fff;
    transform: translate(-50%, -50%);
    transition: opacity .3s ease;
}

.about-faq__toggle::before {
    width: 22px;
    height: 1px;
}

.about-faq__toggle::after {
    width: 1px;
    height: 22px;
}

.about-faq__item.is-open .about-faq__toggle::after {
    opacity: 0;
}

.about-faq__answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows .35s ease;
}

.about-faq__item.is-open .about-faq__answer {
    grid-template-rows: 1fr;
}

.about-faq__answer-inner {
    min-height: 0;
    overflow: hidden;
    margin: 0 14px;
    display: flex;
    gap: 22px;
}

.about-faq__item.is-open .about-faq__answer-inner {
    padding: 20px 0 30px;
    border-top: 1px solid #aaa;
}

.about-faq__answer-inner p {
    margin: 0;
    padding-right: 30px;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
}

@media screen and (max-width: 768px) {
    .about-fv {
        height: 360px;
    }

    .about-fv__bg {
        object-position: 58% center;
        transform: scale(1.8);
    }

    .about-fv__breadcrumb {
        top: 90px;
        left: 20px;
        gap: 5px;
        font-size: 11px;
    }

    .about-fv__title {
        top: 55%;
        width: 100%;
        padding: 0 20px;
        font-size: 32px;
        letter-spacing: .04em;
        text-align: center;
        white-space: nowrap;
    }

    /*about*/
    .about-intro {
        padding: 55px 20px 70px;
    }

    .about-intro__inner {
        width: 100%;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 45px;
    }

    .about-intro__logo {
        width: 220px;
        margin: 0 auto;
        flex-shrink: 0;
    }

    .about-intro__content {
        width: 100%;
        margin: 0 auto;
        text-align: center;
    }

    .about-intro__content p {
        width: 100%;
        margin-left: auto;
        margin-right: auto;
        font-size: 15px;
        line-height: 1.7;
        letter-spacing: 0;
        text-align: center;
    }

    .about-intro__content p + p {
        margin-top: 35px;
    }

    /*悩み*/
    .worries {
        padding: 60px 20px 80px;
    }

    .worries__inner {
        max-width: 420px;
    }

    .worries__title {
        margin-bottom: 55px;
        font-size: 28px;
    }

    .worries__list {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .worries__item {
        width: 100%;
        display: flex;
        align-items: center;
        gap: 18px;
    }

    .worries__item img {
        width: 30px;
        height: 30px;
    }

    .worries__item p {
        flex: 1;
        font-size: 15px;
        line-height: 1.5;
        white-space: normal;
    }

    /*技術*/
    .about-feature {
        padding: 10px 0;
    }

    .about-feature__item,
    .about-feature__item--reverse {
        height: auto;
        flex-direction: column;
    }

    .about-feature__item + .about-feature__item {
        margin-top: 10px;
    }

    .about-feature__image {
        width: 100%;
        height: 230px;
    }

    .about-feature__content {
        padding: 35px 25px 45px;
        text-align: left;
    }

    .about-feature__content h2 {
        margin-bottom: 25px;
        font-size: 21px;
        line-height: 1.5;
    }

    .about-feature__content p {
        max-width: none;
        font-size: 15px;
        line-height: 1.7;
    }

    .about-feature__image--machine img {
        transform: scale(1.35);
        transform-origin: 54% 30%;
    }

    .about-feature__image--room img {
        transform: scale(1.8);
        transform-origin: 54% 65%;
    }

    .about-feature__image--dot img {
        transform: scale(1.5);
        transform-origin: 54% 30%;
    }

    .about-feature__image--4d img {
        transform: scale(1.5);
        transform-origin: 80% 75%;
    }

    /*比較*/
    .comparison {
        padding: 55px 20px 70px;
    }

    .sp-br {
        display: block;
    }

    .comparison__title {
        font-size: 24px;
        line-height: 1.6;
    }

    .comparison__lead {
        margin-top: 35px;
    }

    .comparison__lead p {
        font-size: 15px;
        line-height: 1.7;
    }

    .comparison__subtitle {
        margin: 60px 0 30px;
        font-size: 21px;
    }

    .comparison__table-wrap {
        width: calc(100% + 20px);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .comparison__table {
        width: 700px;
        min-width: 700px;
    }

    .comparison__table th,
    .comparison__table td {
        height: 68px;
        padding: 8px 10px;
    }

    .comparison__table thead th {
        height: 58px;
        font-size: 15px;
    }

    .comparison__table thead th:first-child {
        width: 180px;
    }

    .comparison__table tbody th {
        width: 180px;
        padding-left: 18px;
        font-size: 14px;
        white-space: nowrap;
    }

    .comparison__table tbody td {
        font-size: 12px;
    }

    .comparison__table tbody td strong {
        font-size: 22px;
    }

    .comparison__table tbody td span {
        margin-top: 5px;
        line-height: 1.4;
        white-space: nowrap;
    }

    /*iso*/
.iso {
        padding: 55px 20px 75px;
    }

    .iso__inner {
        max-width: 100%;
        min-height: 0;
        padding: 45px 25px 50px;
        flex-direction: column;
        align-items: center;
        gap: 45px;
    }

    .iso__content {
        width: 100%;
        flex: none;
        text-align: left;
    }

    .iso__en {
        margin-bottom: 12px;
        font-size: 16px;
    }

    .iso__title {
        font-size: 28px;
        line-height: 1.5;
    }

    .iso__text {
        margin-top: 40px;
    }

    .iso__text p {
        font-size: 15px;
        line-height: 2;
    }

    .iso__text p + p {
        margin-top: 18px;
    }

    .iso__text br {
        display: none;
    }

    .iso__image {
        width: 220px;
        height: 285px;
        margin: 0 auto;
    }

    /*安全*/
    .safety {
        padding: 70px 20px 80px;
    }

    .safety__inner {
        max-width: 480px;
    }

    .safety__heading h2 {
        font-size: 25px;
        line-height: 1.7;
        letter-spacing: .02em;
    }

    .safety__heading p {
        margin-top: 28px;
        font-size: 15px;
        line-height: 1.8;
        letter-spacing: .01em;
    }

    .safety__heading p br {
        display: none;
    }

    .safety__list {
        margin-top: 70px;
        grid-template-columns: 1fr;
        gap: 80px;
    }

    .safety__item {
        width: 100%;
    }

    .safety__icon {
        width: 105px;
        height: 105px;
        margin-bottom: 35px;
    }

    .safety__item h3 {
        margin-bottom: 25px;
        font-size: 20px;
        line-height: 1.6;
        white-space: normal;
    }

    .safety__item > p,
    .safety__text p,
    .safety__text li {
        font-size: 15px;
        line-height: 1.8;
        letter-spacing: 0;
    }

    .safety__item > p {
        text-align: left;
    }

    .safety__text ul {
        margin: 15px 0;
        padding-left: 22px;
    }

    .safety__text li {
        padding-left: 2px;
        margin-bottom: 5px;
    }

    /*faq*/
    .about-faq {
        padding: 60px 20px 80px;
    }

    .about-faq__inner {
        max-width: 100%;
    }

    .about-faq__title {
        margin-bottom: 50px;
        font-size: 26px;
    }

    .about-faq__list {
        gap: 12px;
    }

    .about-faq__question {
        min-height: 70px;
        padding: 15px 14px;
        gap: 12px;
    }

    .about-faq__q,
    .about-faq__a {
        font-size: 23px;
    }

    .about-faq__question-text {
        font-size: 15px;
        line-height: 1.5;
    }

    .about-faq__toggle {
        width: 34px;
        height: 34px;
    }

    .about-faq__toggle::before {
        width: 18px;
    }

    .about-faq__toggle::after {
        height: 18px;
    }

    .about-faq__answer-inner {
        margin: 0 14px;
        gap: 12px;
    }

    .about-faq__item.is-open .about-faq__answer-inner {
        padding: 18px 0 22px;
    }

    .about-faq__answer-inner p {
        flex: 1;
        min-width: 0;
        padding-right: 5px;
        font-size: 13px;
        line-height: 1.7;
    }
}