@layer reset {
    :root {
        --color-primary: #d50b00;
        --color-text: #212121;
        --color-text-muted: #666;
        --color-bg: #fff;
        --color-bg-gray: #f8f8f8;
        --color-bg-gray-mid: #f0f0f0;
        --color-bg-dark: #212121;
        --color-border: #ddd;
        --color-border-mid: #c5c5c5
    }
    *,
    :before,
    :after {
        box-sizing: border-box;
        margin: 0;
        padding: 0
    }
}

@layer base {
    :root {
        --header-h: 80px;
        --color-primary: #d50b00;
        --color-text: #212121;
        --color-text-muted: #666;
        --color-bg: #fff;
        --color-bg-gray: #f8f8f8;
        --color-bg-gray-mid: #f0f0f0;
        --color-bg-dark: #212121;
        --color-border: #ddd;
        --color-border-mid: #c5c5c5
    }
    html {
        scroll-behavior: smooth;
        font-size: 16px
    }
    body {
        letter-spacing: .06em;
        color: #212121;
        -webkit-font-smoothing: antialiased;
        background-color: #fff;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1rem;
        font-weight: 500;
        line-height: 1.8;
        overflow-x: clip
    }
    main {
        position: relative
    }
    img,
    svg {
        vertical-align: top;
        max-width: 100%;
        height: auto
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: opacity .3s ease-out
    }
    a:hover {
        opacity: .8
    }
    button {
        cursor: pointer;
        background: 0 0;
        border: none
    }
    ul,
    ol {
        list-style: none
    }
    button,
    input,
    select,
    textarea {
        font: inherit
    }
}

@layer layout {
    .l-inner {
        width: 100%;
        max-width: 1240px;
        margin-inline: auto;
        padding-inline: 20px
    }
    @media (width<=1023px) {
        .l-inner {
            padding-inline: 30px
        }
    }
    .l-inner--wide {
        width: 100%;
        max-width: 1400px;
        margin-inline: auto;
        padding-inline: 20px
    }
    .l-inner--narrow {
        width: 100%;
        max-width: 1000px;
        margin-inline: auto;
        padding-inline: 20px
    }
    .l-section {
        padding-block: 80px 100px
    }
    .l-section--pb-lg {
        padding-bottom: 160px
    }
    @media (width<=1023px) {
        .l-section--pb-lg {
            padding-bottom: 100px
        }
        .l-section--pt-sp-none {
            padding-top: 0
        }
    }
    .l-section.is-gray {
        background-color: #f8f8f8
    }
    .l-section-flex {
        align-items: flex-start;
        gap: 100px;
        display: flex
    }
    @media (width<=1023px) {
        .l-section-flex {
            flex-direction: column;
            gap: 60px
        }
    }
    .l-section-col {
        flex: none;
        width: auto;
        min-width: 0
    }
    .l-section-col--grow {
        flex: 1
    }
    @media (width<=1023px) {
        .l-section-col {
            width: 100%
        }
        .l-section-side {
            padding-top: 0
        }
    }
    .l-section-side .l-inner {
        justify-content: space-between;
        align-items: flex-start;
        gap: 40px;
        display: flex
    }
    .l-section-side .l-inner>:first-child {
        flex-shrink: 0
    }
    @media (width<=1023px) {
        .l-section-side .l-inner {
            flex-direction: column;
            gap: 24px
        }
    }
    .l-section-side__content {
        flex: none;
        width: 780px
    }
    @media (width<=1023px) {
        .l-section-side__content {
            width: 100%
        }
    }
    .l-header {
        z-index: 100;
        position: sticky;
        top: 0
    }
    .l-header__inner {
        padding-left: 30px;
        justify-content: space-between;
        align-items: center;
        padding-block: 14px;
        display: flex
    }
    @media (width<=1157px) {
        .l-header__inner {
            padding-left: 30px;
            z-index: 100;
            background-color: #fff;
            min-height: 60px;
            padding-block: 0;
            position: relative
        }
    }
    .l-footer__inner {
        flex-direction: column;
        align-items: center;
        gap: 52px;
        padding-block: 80px 100px;
        display: flex
    }
    @media (width<=1023px) {
        .l-footer__inner {
            gap: 40px;
            padding-block: 60px
        }
    }
    :root {
        --color-primary: #d50b00;
        --color-text: #212121;
        --color-text-muted: #666;
        --color-bg: #fff;
        --color-bg-gray: #f8f8f8;
        --color-bg-gray-mid: #f0f0f0;
        --color-bg-dark: #212121;
        --color-border: #ddd;
        --color-border-mid: #c5c5c5
    }
    .l-breadcrumb {
        z-index: 1;
        padding-top: 46px;
        z-index: 3;
        padding-inline: max(20px, 50% - 600px);
        position: absolute;
        top: 0;
        left: 0;
        right: 0
    }
    @media (width<=1023px) {
        .l-breadcrumb {
            padding-top: 6px;
            padding-inline: 30px
        }
    }
    .l-breadcrumb__list {
        justify-content: flex-end;
        align-items: center;
        gap: 16px;
        display: flex
    }
    @media (width<=1023px) {
        .l-breadcrumb__list {
            justify-content: flex-start;
            gap: 6px
        }
    }
    .l-breadcrumb__item {
        align-items: center;
        gap: 16px;
        display: flex
    }
    @media (width<=1023px) {
        .l-breadcrumb__item {
            gap: 6px
        }
    }
    .l-breadcrumb__item:not(:last-child):after {
        content: "";
        background-color: #fff;
        width: 12px;
        height: 2px;
        display: block
    }
    @media (width<=1023px) {
        .l-breadcrumb__item:not(:last-child):after {
            width: 6px;
            height: 1px
        }
    }
    .l-breadcrumb__link {
        color: #fff;
        letter-spacing: .06em;
        opacity: .6;
        white-space: nowrap;
        font-size: .875rem;
        font-weight: 700;
        transition: opacity .3s ease-out
    }
    .l-breadcrumb__link:hover {
        opacity: 1
    }
    @media (width<=1023px) {
        .l-breadcrumb__link {
            font-size: .75rem
        }
    }
    .l-breadcrumb__current {
        color: #fff;
        letter-spacing: .06em;
        white-space: nowrap;
        font-size: .875rem;
        font-weight: 700
    }
    @media (width<=1023px) {
        .l-breadcrumb__current {
            font-size: .75rem
        }
    }
}

@layer component {
    .c-btn {
        color: #fff;
        background-color: #d50b00;
        border-radius: 4px;
        justify-content: center;
        align-items: center;
        gap: 8px;
        min-width: 200px;
        padding: 14px 24px;
        font-size: .9375rem;
        font-weight: 700;
        line-height: 1.4;
        transition: background-color .3s ease-out, opacity .3s ease-out;
        display: inline-flex
    }
    .c-btn:hover {
        opacity: .85
    }
    .c-btn.is-outline {
        color: #d50b00;
        background-color: #0000;
        border: 2px solid #d50b00
    }
    .c-btn.is-white {
        color: #d50b00;
        background-color: #fff
    }
    .c-btn.is-small {
        min-width: 0;
        padding: 10px 20px;
        font-size: .875rem
    }
    .c-btn-wrap {
        gap: 16px;
        display: flex
    }
    .c-btn-wrap.is-center {
        justify-content: center
    }
    .c-btn-wrap.is-right {
        justify-content: flex-end
    }
    .c-btn-slide {
        color: #fff;
        background-color: #212121;
        border-radius: 5px;
        justify-content: space-between;
        align-items: center;
        gap: 8px;
        min-width: 230px;
        padding: 18px 30px;
        display: inline-flex;
        position: relative;
        overflow: hidden
    }
    @media (width<=1023px) {
        .c-btn-slide {
            padding: 18px 20px
        }
    }
    .c-btn-slide__hover {
        display: none
    }
    @media (width>=1024px) {
        .c-btn-slide__hover {
            z-index: 0;
            background-color: #d50b00;
            transition: transform .4s ease-out;
            display: block;
            position: absolute;
            inset: 0;
            transform: translate(-100%)
        }
        .c-btn-slide:hover {
            opacity: 1
        }
        .c-btn-slide:hover .c-btn-slide__hover,
        .c-btn-slide:hover .c-btn-slide__arrow:before {
            transform: translate(0)
        }
        .c-btn-slide:hover .c-btn-slide__arrow:after {
            transform: translate(28px)
        }
    }
    .c-btn-slide__label {
        z-index: 1;
        letter-spacing: .06em;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1rem;
        font-weight: 700;
        line-height: 1.2;
        transition: color .3s ease-out;
        position: relative
    }
    .c-btn-slide__arrow {
        z-index: 1;
        width: 18px;
        height: 18px;
        position: relative;
        overflow: hidden
    }
    .c-btn-slide__arrow:before,
    .c-btn-slide__arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 18px;
        height: 18px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 9px);
        left: calc(50% - 9px)
    }
    .c-btn-slide__arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp);
        transform: translate(-28px)
    }
    .c-btn-slide__arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp)
    }
    .c-btn-slide__ext-icon {
        vertical-align: middle;
        background: url(/cms/riken/img/icn/icn-blank-wh.webp) 50%/contain no-repeat;
        flex-shrink: 0;
        width: 15px;
        height: 13px;
        margin-top: -3px;
        margin-left: 6px;
        display: inline-block;
        position: relative
    }
    .c-btn-slide[target=_blank] .c-btn-slide__label:after {
        content: "";
        vertical-align: middle;
        background: url(/cms/riken/img/icn/icn-blank-wh.webp) 50%/contain no-repeat;
        flex-shrink: 0;
        width: 15px;
        height: 13px;
        margin-top: -3px;
        margin-left: 6px;
        transition: background-color .3s;
        display: inline-block
    }
    .c-btn-slide[target=_blank]:hover .c-btn-slide__label:after {
        background: url(/cms/riken/img/icn/icn-blank-wh.webp) 50%/contain no-repeat
    }
    .c-btn-slide--circle-arrow {
        border: 4px solid #fff;
        border-radius: 8px;
        min-width: 290px;
        padding: 24px 20px 25px 38px
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow-area {
        flex-shrink: 0;
        justify-content: center;
        align-items: center;
        height: 40px;
        display: flex
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow {
        z-index: 1;
        width: 28px;
        height: 28px;
        position: relative;
        overflow: hidden
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:before,
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 20px;
        height: 20px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 10px);
        left: calc(50% - 10px)
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp);
        transform: translate(-26px)
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp)
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow {
        background-color: #fff;
        border-radius: 50%;
        flex-shrink: 0
    }
    @media (width<=1023px) {
        .c-btn-slide--circle-arrow .c-btn-slide__arrow {
            width: 22px;
            height: 22px
        }
    }
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:before,
    .c-btn-slide--circle-arrow .c-btn-slide__arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-short-bk.webp);
        background-size: contain
    }
    @media (width<=1023px) {
        .c-btn-slide--circle-arrow .c-btn-slide__arrow:before,
        .c-btn-slide--circle-arrow .c-btn-slide__arrow:after {
            width: 18px;
            height: 18px;
            top: calc(50% - 9px);
            left: calc(50% - 9px)
        }
    }
    .c-heading {
        font-weight: 700
    }
    .c-heading--xl {
        font-size: 2.5rem
    }
    .c-heading--lg {
        font-size: 2rem
    }
    .c-heading--md {
        font-size: 1.5rem
    }
    .c-heading--sm {
        font-size: 1.25rem
    }
    .c-heading--primary {
        color: #d50b00
    }
    .c-bar-heading {
        align-items: center;
        gap: .75rem;
        font-size: 1.25rem;
        font-weight: 700;
        display: flex
    }
    .c-bar-heading:before {
        content: "";
        background-color: #d50b00;
        flex-shrink: 0;
        align-self: stretch;
        width: 4px;
        display: block
    }
    .c-sec-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 60px;
        display: flex
    }
    @media (width<=1023px) {
        .c-sec-title {
            margin-bottom: 20px
        }
    }
    .c-sec-title__sub {
        background-color: #d50b00;
        border-radius: 2px;
        align-items: flex-end;
        gap: 3px;
        padding: 2px 6px 4px;
        display: inline-flex
    }
    .c-sec-title__num,
    .c-sec-title__en {
        color: #fff;
        letter-spacing: 0;
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-size: 1.75rem;
        font-weight: 400;
        line-height: 1
    }
    .c-sec-title__en {
        text-transform: uppercase
    }
    .c-sec-title__slash {
        background-color: #fff;
        border-radius: 50%;
        flex-shrink: 0;
        align-self: flex-end;
        width: 5px;
        height: 5px;
        display: block;
        position: relative;
        top: -2px
    }
    .c-sec-title__main {
        letter-spacing: .06em;
        color: #212121;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 3.75rem;
        font-weight: 700;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-sec-title {
            gap: 10px
        }
        .c-sec-title__sub {
            padding: 2px 6px 3px
        }
        .c-sec-title__num {
            font-size: 1.375rem
        }
        .c-sec-title__en {
            font-size: 1.5rem
        }
        .c-sec-title__slash {
            width: 4px;
            height: 4px
        }
        .c-sec-title__main {
            font-size: 2.25rem
        }
    }
    .c-sec-title--white .c-sec-title__sub {
        background-color: #212121
    }
    .c-sec-title--white .c-sec-title__main {
        color: #fff
    }
    .c-news-card {
        border-bottom: 1px solid #ddd;
        border-right: 1px solid #ddd;
        flex-direction: column;
        gap: 12px;
        padding-bottom: 18px;
        padding-right: 18px;
        display: flex;
        position: relative
    }
    .c-news-card__meta {
        justify-content: space-between;
        align-items: center;
        gap: 8px;
        width: 100%;
        display: flex
    }
    @media (width<=1023px) {
        .c-news-card__meta {
            justify-content: flex-start
        }
    }
    .c-news-card__date-area {
        align-items: center;
        gap: 6px;
        display: flex
    }
    .c-news-card__date {
        letter-spacing: .06em;
        color: #666;
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-size: .8125rem;
        font-weight: 400;
        line-height: 22px;
        transition: color .4s ease-out
    }
    .c-news-card__new {
        letter-spacing: .06em;
        color: #d50b00;
        margin-left: 8px;
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-size: 1rem;
        font-weight: 400
    }
    .c-news-card__cat {
        letter-spacing: .06em;
        color: #d50b00;
        border: 1px solid #d50b00;
        border-radius: 30px;
        flex-shrink: 0;
        justify-content: center;
        align-items: center;
        width: 80px;
        padding: 4px 0 5px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: .75rem;
        font-weight: 500;
        display: inline-flex
    }
    @media (width<=1023px) {
        .c-news-card__cat {
            width: 76px;
            padding: 1px 0
        }
    }
    .c-news-card__body {
        gap: 16px;
        padding-right: 20px;
        display: flex
    }
    @media (width<=1023px) {
        .c-news-card__body {
            padding-right: 30px
        }
    }
    .c-news-card__title {
        letter-spacing: .06em;
        flex: 1;
        min-width: 0;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: .875rem;
        font-weight: 500;
        line-height: 1.8;
        transition: color .4s ease-out
    }
    .c-news-card__arrow {
        z-index: 1;
        width: 17px;
        height: 17px;
        position: relative;
        overflow: hidden
    }
    .c-news-card__arrow:before,
    .c-news-card__arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 10px;
        height: 10px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 5px);
        left: calc(50% - 5px)
    }
    .c-news-card__arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp);
        transform: translate(-18px)
    }
    .c-news-card__arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp)
    }
    .c-news-card__arrow {
        background-color: #666;
        border-radius: 50%;
        transition: width .3s ease-out, height .3s ease-out, background-color .3s ease-out, transform .3s ease-out;
        position: absolute;
        bottom: 20px;
        right: 20px
    }
    @media (width<=1023px) {
        .c-news-card__arrow {
            bottom: 15px;
            right: 15px
        }
    }
    @media (width>=1024px) {
        .c-news-card:hover {
            opacity: 1;
            color: #d50b00
        }
        .c-news-card:hover .c-news-card__date {
            color: #d50b00
        }
        .c-news-card:hover .c-news-card__arrow {
            background-color: #d50b00;
            width: 20px;
            height: 20px;
            transform: translate(1.5px, 1.5px)
        }
        .c-news-card:hover .c-news-card__arrow:before {
            transform: translate(0)
        }
        .c-news-card:hover .c-news-card__arrow:after {
            transform: translate(18px)
        }
    }
    @media (width<=1023px) {
        .c-news-card {
            gap: 12px;
            padding-bottom: 12px;
            padding-right: 12px
        }
        .c-news-card__title {
            font-size: .8125rem
        }
        .c-news-card__new {
            font-size: .9375rem
        }
    }
    .c-header {
        background-color: #fff
    }
    .c-header__logo {
        flex: none;
        font-size: 0;
        line-height: 0
    }
    .c-header__logo-img {
        width: auto;
        height: 34px
    }
    @media (width<=1157px) {
        .c-header__logo-img {
            height: 20px
        }
    }
    .c-header__nav-area {
        flex-direction: column;
        align-items: flex-end;
        gap: 16px;
        padding-right: 36px;
        display: flex
    }
    @media (width<=1157px) {
        .c-header__nav-area {
            display: none
        }
    }
    .c-header__sub {
        align-items: center;
        gap: 16px;
        display: flex
    }
    .c-header__search {
        border-bottom: 2px solid #d50b00;
        align-items: center;
        gap: 8px;
        width: 160px;
        padding: 5px 4px 6px;
        display: flex
    }
    .c-header__search-btn {
        display: flex
    }
    .c-header__search-icon {
        width: 14px;
        height: 14px
    }
    .c-header__search-input {
        letter-spacing: .06em;
        color: #212121;
        background: 0 0;
        border: none;
        flex: 1;
        min-width: 0;
        font-size: .75rem;
        font-weight: 500
    }
    .c-header__search-input::placeholder {
        color: #212121;
        opacity: .3
    }
    .c-header__lang {
        background-color: #f0f0f0;
        border-radius: 30px;
        align-items: center;
        display: inline-flex
    }
    .c-header__lang-item {
        letter-spacing: .06em;
        color: #212121;
        border-radius: 20px;
        justify-content: center;
        align-items: center;
        padding: 4px 14px 6px;
        font-size: .875rem;
        font-weight: 700;
        display: inline-flex
    }
    .c-header__lang-item.is-current {
        color: #fff;
        background-color: #d50b00
    }
    .c-header__lang-item+.c-header__lang-item {
        margin-left: -5px
    }
    .c-header__lang-item:hover {
        opacity: 1
    }
    .c-header__login-wrap {
        position: relative
    }
    .c-header__login {
        letter-spacing: .06em;
        color: #d50b00;
        border: 1px solid #d50b00;
        border-radius: 4px;
        align-items: center;
        gap: 6px;
        padding: 5px 20px 6px;
        font-size: .875rem;
        font-weight: 700;
        transition: color .3s ease-out, background-color .3s ease-out;
        display: inline-flex
    }
    .c-header__login:hover {
        opacity: 1;
        color: #fff;
        background-color: #d50b00
    }
    .c-header__login-wrap:hover .c-header__login {
        color: #fff;
        background-color: #d50b00
    }
    .c-header__login-drop {
        z-index: 10;
        opacity: 0;
        visibility: hidden;
        width: 100%;
        padding-top: 12px;
        transition: opacity .3s ease-out, visibility .3s ease-out;
        position: absolute;
        top: 100%;
        left: 0
    }
    .c-header__login-wrap:hover .c-header__login-drop {
        opacity: 1;
        visibility: visible
    }
    .c-header__login-lang {
        background-color: #fafafa;
        border-radius: 10px;
        flex-direction: column;
        gap: 4px;
        padding: 10px;
        display: flex;
        box-shadow: 0 0 5px #00000029
    }
    .c-header__login-lang-link {
        letter-spacing: .06em;
        color: #212121;
        background-color: #fff;
        border-radius: 3px;
        justify-content: center;
        align-items: center;
        height: 29px;
        padding: 0 10px 1px;
        font-size: .875rem;
        font-weight: 700;
        transition: background-color .3s ease-out, color .3s ease-out;
        display: flex
    }
    .c-header__login-lang-link:hover {
        opacity: 1;
        color: #fff;
        background-color: #d50b00
    }
    .c-header__login-icon {
        width: 15px;
        height: 15px;
        line-height: 0;
        transition: background .3s ease-out
    }
    .c-header__login-icon img {
        transition: opacity .3s ease-out
    }
    .c-header__login-wrap:hover .c-header__login-icon {
        background: url(/cms/riken/img/icn/icn-login-wh.webp) 0 0/contain no-repeat
    }
    .c-header__login-wrap:hover .c-header__login-icon img {
        opacity: 0
    }
    .c-header__nav-list {
        align-items: center;
        gap: 24px;
        display: flex
    }
    .c-header__nav-link {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: .875rem;
        font-weight: 700;
        transition: color .4s ease-out;
        display: inline-flex
    }
    .c-header__nav-link:hover {
        opacity: 1;
        color: #d50b00
    }
    .c-header__nav-icon--down {
        width: 10px;
        height: 6px;
        transition: transform .4s ease-out
    }
    .c-header__nav-icon--blank {
        width: 15px;
        height: 13px
    }
    .c-header__sp {
        display: none
    }
    @media (width<=1157px) {
        .c-header__sp {
            align-self: stretch;
            align-items: stretch;
            display: flex
        }
    }
    .c-header__sp-search {
        justify-content: center;
        align-items: center;
        padding-inline: 22px;
        display: flex;
        position: relative
    }
    .c-header__sp-search:before,
    .c-header__sp-search:after {
        content: "";
        opacity: 0;
        background-color: #d50b00;
        border-radius: 2px;
        width: 17px;
        height: 2px;
        transition: opacity .2s ease-out;
        display: block;
        position: absolute;
        top: 50%;
        left: 50%
    }
    .c-header__sp-search:before {
        transform: translate(-50%, -50%)rotate(45deg)
    }
    .c-header__sp-search:after {
        transform: translate(-50%, -50%)rotate(-45deg)
    }
    .is-search-open .c-header__sp-search:before,
    .is-search-open .c-header__sp-search:after {
        opacity: 1
    }
    .c-header__sp-search-icon {
        width: 20px;
        height: 20px;
        transition: opacity .2s ease-out
    }
    .is-search-open .c-header__sp-search-icon {
        opacity: 0
    }
    @media (width>=1024px) {
        .c-header__sp-search-bar {
            display: none
        }
    }
    .c-header__sp-search-bar {
        z-index: 99;
        top: var(--header-h, 60px);
        opacity: 0;
        visibility: hidden;
        background-color: #f8f8f8;
        align-items: center;
        gap: 10px;
        min-height: 60px;
        padding-inline: 30px;
        transition: opacity .3s ease-out, visibility .3s ease-out;
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        box-shadow: 0 4px 40px #00000026
    }
    .is-search-open .c-header__sp-search-bar {
        opacity: 1;
        visibility: visible
    }
    .c-header__sp-search-form {
        flex: 1;
        align-items: center;
        gap: 10px;
        min-width: 0;
        display: flex
    }
    .c-header__sp-search-submit {
        flex-shrink: 0;
        display: flex
    }
    .c-header__sp-search-form-icon {
        width: 20px;
        height: 20px
    }
    .c-header__sp-search-form-input {
        letter-spacing: .06em;
        color: #212121;
        background: 0 0;
        border: none;
        flex: 1;
        min-width: 0;
        font-size: .9375rem;
        font-weight: 500
    }
    .c-header__sp-search-form-input::placeholder {
        color: #212121;
        opacity: .3
    }
    .c-header__hamburger {
        background-color: #d50b00;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        width: 64px;
        display: flex
    }
    .c-header__hamburger span {
        background-color: #fff;
        border-radius: 2px;
        width: 24px;
        height: 2px;
        transition: transform .3s ease-out, opacity .3s ease-out;
        display: block
    }
    .is-nav-open .c-header__hamburger span:first-child {
        transform: translateY(7px)rotate(45deg)
    }
    .is-nav-open .c-header__hamburger span:nth-child(2) {
        opacity: 0
    }
    .is-nav-open .c-header__hamburger span:nth-child(3) {
        transform: translateY(-7px)rotate(-45deg)
    }
    .c-header__nav-item.is-mega-active .c-header__nav-icon--down {
        transform: rotate(180deg)
    }
    @media (width>=1024px) {
        .c-drawer {
            display: none
        }
    }
    .c-drawer {
        top: var(--header-h, 60px);
        overscroll-behavior: contain;
        opacity: 0;
        visibility: hidden;
        background-color: #f8f8f8;
        transition: opacity .3s ease-out, visibility .3s ease-out;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        overflow-y: auto
    }
    .l-header.is-nav-open .c-drawer {
        opacity: 1;
        visibility: visible
    }
    .c-drawer__inner {
        flex-direction: column;
        gap: 28px;
        padding-block: 20px 100px;
        display: flex
    }
    .c-drawer__nav {
        flex-direction: column;
        padding-inline: 30px;
        display: flex
    }
    .c-drawer__acc {
        width: 100%
    }
    .c-drawer__acc.is-open .c-drawer__acc-title {
        color: #d50b00
    }
    .c-drawer__acc-head {
        text-align: left;
        cursor: pointer;
        align-items: center;
        gap: 6px;
        width: 100%;
        padding: 16px 4px;
        display: flex
    }
    .c-drawer__acc-trigger {
        align-items: center;
        display: inline-flex
    }
    .c-drawer__acc-title {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: .9375rem;
        font-weight: 700;
        line-height: 1.8;
        transition: color .3s ease-out;
        display: inline-flex
    }
    .c-drawer__acc-toplink-circle {
        opacity: 0;
        flex: none;
        justify-content: center;
        align-items: center;
        width: 22px;
        height: 22px;
        margin-top: 2px;
        margin-left: 6px;
        transition: opacity .3s ease-out;
        display: inline-flex;
        position: relative;
        overflow: hidden
    }
    .c-drawer__acc-toplink-circle:before {
        content: "";
        background-color: #d50b00;
        border-radius: 50%;
        width: 18px;
        height: 18px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%)
    }
    .c-drawer__acc-toplink-circle:after {
        content: "";
        z-index: 1;
        background: url(/cms/riken/img/icn/icn-arrow-short-wh.png) 50%/14px 14px no-repeat;
        width: 14px;
        height: 14px;
        position: relative
    }
    .c-drawer__acc.is-open .c-drawer__acc-toplink-circle {
        opacity: 1
    }
    .c-drawer__acc-toggle {
        flex: none;
        width: 14px;
        height: 14px;
        margin-left: auto;
        position: relative
    }
    .c-drawer__acc-toggle:before,
    .c-drawer__acc-toggle:after {
        content: "";
        background-color: #d50b00;
        border-radius: 2px;
        position: absolute
    }
    .c-drawer__acc-toggle:before {
        height: 2px;
        top: 50%;
        left: 1px;
        right: 1px;
        transform: translateY(-50%)
    }
    .c-drawer__acc-toggle:after {
        width: 2px;
        transition: transform .4s ease-out, opacity .4s ease-out;
        top: 1px;
        bottom: 1px;
        left: 50%;
        transform: translate(-50%)
    }
    .is-open .c-drawer__acc-toggle:after {
        opacity: 0;
        transform: translate(-50%)scaleY(0)
    }
    .c-drawer__acc-arrow {
        flex: none;
        width: 14px;
        height: 14px;
        margin-left: auto
    }
    .c-drawer__acc-ext {
        flex: none;
        width: 14px;
        height: 12px
    }
    .c-drawer__acc-divider {
        background-color: #ddd;
        width: 100%;
        height: 1px;
        display: block;
        position: relative;
        overflow: hidden
    }
    .c-drawer__acc-divider:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .4s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    .c-drawer__acc-body {
        max-height: 0;
        transition: max-height .35s ease-out;
        overflow: hidden
    }
    .is-open .c-drawer__acc-body {
        max-height: 600px
    }
    .c-drawer__acc-list {
        flex-wrap: wrap;
        gap: 16px 10px;
        padding: 4px 4px 24px 16px;
        display: flex
    }
    .c-drawer__acc-item {
        width: calc(50% - 5px);
        line-height: 1
    }
    .c-drawer__acc-item.is-long {
        flex-grow: 1;
        width: max-content
    }
    .c-drawer__acc-item:has(+.is-long) {
        flex-grow: 1;
        width: max-content
    }
    .c-drawer__acc-item.is-long+.c-drawer__acc-item {
        flex-grow: 1;
        width: max-content
    }
    .c-drawer__link {
        vertical-align: top;
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: .75rem;
        font-weight: 400;
        display: inline-flex
    }
    .c-drawer__link:before {
        content: "";
        background-color: #d50b00;
        flex: none;
        width: 6px;
        height: 1px
    }
    .c-drawer__link:hover {
        opacity: 1;
        color: #d50b00
    }
    .c-drawer__bottom {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        padding-inline: 30px;
        display: flex
    }
    .c-drawer__login-wrap {
        width: 100%;
        position: relative
    }
    .c-drawer__login {
        letter-spacing: .06em;
        color: #d50b00;
        background-color: #fff;
        border: 2px solid #d50b00;
        border-radius: 8px;
        justify-content: center;
        align-items: center;
        gap: 6px;
        width: 100%;
        padding: 11px 20px;
        font-size: .9375rem;
        font-weight: 700;
        transition: background-color .3s ease-out, color .3s ease-out;
        display: flex
    }
    .c-drawer__login:hover {
        opacity: 1
    }
    .c-drawer__login-icon {
        width: 13px;
        height: 13px;
        line-height: 0;
        transition: background .3s ease-out
    }
    .c-drawer__login-wrap.is-open .c-drawer__login {
        color: #fff;
        background-color: #d50b00
    }
    .c-drawer__login-wrap.is-open .c-drawer__login-icon {
        opacity: 1;
        background: url(/cms/riken/img/icn/icn-login-wh.webp) 0 0/contain no-repeat
    }
    .c-drawer__login-wrap.is-open .c-drawer__login-icon img {
        opacity: 0
    }
    .c-drawer__login-drop {
        z-index: 2;
        opacity: 0;
        visibility: hidden;
        width: 100%;
        padding-top: 10px;
        transition: opacity .3s ease-out, visibility .3s ease-out;
        position: absolute;
        top: 100%;
        left: 0
    }
    .c-drawer__login-wrap.is-open .c-drawer__login-drop {
        opacity: 1;
        visibility: visible
    }
    .c-drawer__login-lang {
        background-color: #fafafa;
        border-radius: 8px;
        gap: 12px;
        padding: 10px;
        display: flex;
        box-shadow: 0 0 5px #00000029
    }
    .c-drawer__login-lang-item {
        flex: 1 0 0;
        min-width: 0
    }
    .c-drawer__login-lang-link {
        letter-spacing: .06em;
        color: #212121;
        background-color: #fff;
        border-radius: 3px;
        justify-content: center;
        align-items: center;
        height: 29px;
        padding: 0 10px 1px;
        font-size: .875rem;
        font-weight: 700;
        display: flex
    }
    .c-drawer__login-lang-link:hover {
        opacity: 1
    }
    .c-drawer__lang {
        background-color: #f0f0f0;
        border-radius: 30px;
        align-items: center;
        display: inline-flex
    }
    .c-drawer__lang-item {
        letter-spacing: .06em;
        color: #212121;
        border-radius: 20px;
        justify-content: center;
        align-items: center;
        padding: 2px 14px;
        font-size: .875rem;
        font-weight: 700;
        display: inline-flex
    }
    .c-drawer__lang-item+.c-drawer__lang-item {
        margin-left: -5px
    }
    .c-drawer__lang-item.is-current {
        color: #fff;
        background-color: #d50b00
    }
    .c-drawer__lang-item:hover {
        opacity: 1
    }
    @media (width<=1023px) {
        .c-mega-menu {
            display: none
        }
    }
    .c-mega-menu {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        width: 100%;
        transition: opacity .25s ease-out, visibility .25s ease-out;
        position: absolute;
        top: 100%;
        left: 0
    }
    .c-mega-menu.is-open {
        opacity: 1;
        visibility: visible;
        pointer-events: auto
    }
    .c-mega-menu__panel:not([hidden]) {
        width: 100%;
        display: flex
    }
    .c-mega-menu__nav {
        --mega-outer-pad: max(20px, calc((100vw - 1200px) / 2 + 20px));
        width: calc(var(--mega-outer-pad) + 400px);
        padding-block: 56px;
        padding-left: var(--mega-outer-pad);
        max-height: calc(100vh - var(--header-h, 80px));
        background-color: #f8f8f8;
        flex: none;
        padding-right: 80px;
        overflow-y: auto
    }
    .c-mega-menu__head {
        flex-direction: column;
        gap: 4px;
        padding-inline: 4px;
        display: flex
    }
    .c-mega-menu__head:hover {
        opacity: 1
    }
    .c-mega-menu__head:hover .c-mega-menu__head-ja {
        color: #d50b00
    }
    .c-mega-menu__head:hover .c-mega-menu__head-line:after {
        transform: scaleX(1)
    }
    .c-mega-menu__head:hover .c-mega-menu__head-arrow {
        width: 28px;
        height: 28px
    }
    .c-mega-menu__head:hover .c-mega-menu__head-arrow:before {
        transform: translate(0)
    }
    .c-mega-menu__head:hover .c-mega-menu__head-arrow:after {
        transform: translate(26px)
    }
    .c-mega-menu__head-en {
        color: #d50b00;
        font-family: Barlow, sans-serif;
        font-size: 1.125rem;
        font-weight: 600;
        line-height: .9
    }
    .c-mega-menu__head-main {
        justify-content: space-between;
        align-items: center;
        display: flex
    }
    .c-mega-menu__head-ja {
        letter-spacing: .06em;
        color: #212121;
        font-size: 1.75rem;
        font-weight: 700;
        transition: color .4s ease-out
    }
    .c-mega-menu__head-arrow {
        z-index: 1;
        width: 24px;
        height: 24px;
        position: relative;
        overflow: hidden
    }
    .c-mega-menu__head-arrow:before,
    .c-mega-menu__head-arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 18px;
        height: 18px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 9px);
        left: calc(50% - 9px)
    }
    .c-mega-menu__head-arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-short-wh.png);
        transform: translate(-26px)
    }
    .c-mega-menu__head-arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-short-wh.png)
    }
    .c-mega-menu__head-arrow {
        background-color: #d50b00;
        border-radius: 50%;
        flex: none;
        transition: width .3s ease-out, height .3s ease-out, transform .3s ease-out
    }
    .c-mega-menu__head-line {
        margin-inline: 4px;
        background-color: #ddd;
        height: 2px;
        margin-top: 14px;
        position: relative;
        overflow: hidden
    }
    .c-mega-menu__head-line:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .4s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    .c-mega-menu__links {
        flex-direction: column;
        gap: 28px;
        margin-top: 48px;
        padding-inline: 4px;
        display: flex
    }
    .c-mega-menu__link-item.is-active .c-mega-menu__link {
        color: #d50b00
    }
    .c-mega-menu__link {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: 1.125rem;
        font-weight: 700;
        line-height: 1;
        transition: color .4s ease-out;
        display: inline-flex
    }
    .c-mega-menu__link:hover {
        opacity: 1;
        color: #d50b00
    }
    .c-mega-menu__link:hover .c-mega-menu__link-arrow {
        transform: translate(4px)
    }
    .c-mega-menu__link-arrow {
        flex: none;
        width: 20px;
        height: 20px;
        margin-top: 2px;
        transition: transform .2s ease-out
    }
    .c-mega-menu__detail {
        --mega-outer-pad: max(20px, calc((100vw - 1200px) / 2 + 20px));
        padding-block: 56px;
        min-width: 0;
        padding-left: 56px;
        padding-right: var(--mega-outer-pad);
        min-height: 600px;
        max-height: calc(100vh - var(--header-h, 80px));
        background-color: #f0f0f0;
        flex: 1;
        overflow-y: auto
    }
    .c-mega-menu__feat {
        align-items: flex-start;
        gap: 32px;
        display: flex
    }
    .c-mega-menu__feat:hover {
        opacity: 1
    }
    .c-mega-menu__feat:hover .c-mega-menu__feat-desc {
        color: #d50b00
    }
    .c-mega-menu__feat:hover .c-mega-menu__feat-img img {
        filter: brightness(.7);
        transform: scale(1.1)
    }
    .c-mega-menu__feat:hover .c-mega-menu__feat-btn {
        color: #fff;
        background-color: #d50b00
    }
    .c-mega-menu__feat:hover .c-mega-menu__feat-btn-arrow:before {
        transform: translate(0)
    }
    .c-mega-menu__feat:hover .c-mega-menu__feat-btn-arrow:after {
        transform: translate(34px)
    }
    .c-mega-menu__feat-img {
        background-color: #ddd;
        border-radius: 8px;
        flex: none;
        width: 300px;
        height: 225px;
        overflow: hidden
    }
    .c-mega-menu__feat-img img {
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: transform .4s ease-out, filter .4s ease-out
    }
    .c-mega-menu__feat-body {
        flex-direction: column;
        flex: 1;
        align-self: stretch;
        min-width: 0;
        display: flex
    }
    .c-mega-menu__feat-title {
        letter-spacing: .06em;
        color: #d50b00;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1
    }
    .c-mega-menu__feat-desc {
        letter-spacing: .06em;
        color: #212121;
        margin-top: 20px;
        font-size: .9375rem;
        font-weight: 500;
        line-height: 1.8;
        transition: color .4s ease-out
    }
    .c-mega-menu__feat-btn {
        letter-spacing: .06em;
        color: #212121;
        background-color: #fff;
        border-radius: 45px;
        justify-content: space-between;
        align-self: flex-end;
        align-items: center;
        width: 180px;
        height: 48px;
        margin-top: 40px;
        padding-inline: 30px 24px;
        font-size: .875rem;
        font-weight: 500;
        transition: background-color .4s ease-out, color .4s ease-out;
        display: inline-flex
    }
    .c-mega-menu__feat-btn:hover {
        opacity: 1;
        color: #fff;
        background-color: #d50b00
    }
    .c-mega-menu__feat-btn:hover .c-mega-menu__feat-btn-arrow:before {
        transform: translate(0)
    }
    .c-mega-menu__feat-btn:hover .c-mega-menu__feat-btn-arrow:after {
        transform: translate(34px)
    }
    .c-mega-menu__feat-btn-arrow {
        z-index: 1;
        width: 18px;
        height: 18px;
        position: relative;
        overflow: hidden
    }
    .c-mega-menu__feat-btn-arrow:before,
    .c-mega-menu__feat-btn-arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 18px;
        height: 18px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 9px);
        left: calc(50% - 9px)
    }
    .c-mega-menu__feat-btn-arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.png);
        transform: translate(-28px)
    }
    .c-mega-menu__feat-btn-arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow.png)
    }
    .c-mega-menu__feat-desc-wrap {
        align-items: flex-end;
        gap: 40px;
        margin-top: 20px;
        display: flex
    }
    .c-mega-menu__feat-desc-wrap .c-mega-menu__feat-desc {
        flex: 1;
        min-width: 0;
        margin-top: 0
    }
    .c-mega-menu__feat-desc-wrap .c-mega-menu__feat-btn {
        flex: none;
        align-self: auto;
        margin-top: 0
    }
    .c-mega-menu__card-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 32px 16px;
        margin-top: 60px;
        display: grid
    }
    .c-mega-menu__card {
        flex-direction: column;
        gap: 12px;
        display: flex
    }
    .c-mega-menu__card:hover {
        opacity: 1
    }
    .c-mega-menu__card:hover .c-mega-menu__card-title {
        color: #d50b00
    }
    .c-mega-menu__card:hover .c-mega-menu__card-img img {
        filter: brightness(.7);
        transform: scale(1.05)
    }
    .c-mega-menu__card:hover .c-mega-menu__card-arrow {
        background-color: #d50b00;
        width: 20px;
        height: 20px;
        transform: translate(1.5px)
    }
    .c-mega-menu__card:hover .c-mega-menu__card-arrow:before {
        transform: translate(0)
    }
    .c-mega-menu__card:hover .c-mega-menu__card-arrow:after {
        transform: translate(20px)
    }
    .c-mega-menu__card:hover .c-mega-menu__card-line:after {
        transform: scaleX(1)
    }
    .c-mega-menu__card-img {
        aspect-ratio: 152/114;
        background-color: #ddd;
        border-radius: 4px;
        width: 100%;
        overflow: hidden
    }
    .c-mega-menu__card-img img {
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: transform .4s ease-out, filter .4s ease-out
    }
    .c-mega-menu__card-body {
        flex-direction: column;
        gap: 9px;
        padding-inline: 4px;
        display: flex
    }
    .c-mega-menu__card-title {
        letter-spacing: .06em;
        color: #212121;
        justify-content: space-between;
        align-items: center;
        font-size: .9375rem;
        font-weight: 700;
        line-height: 1;
        transition: color .4s ease-out;
        display: flex
    }
    .c-mega-menu__card-arrow {
        z-index: 1;
        width: 17px;
        height: 17px;
        position: relative;
        overflow: hidden
    }
    .c-mega-menu__card-arrow:before,
    .c-mega-menu__card-arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 12px;
        height: 12px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 6px);
        left: calc(50% - 6px)
    }
    .c-mega-menu__card-arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.png);
        transform: translate(-20px)
    }
    .c-mega-menu__card-arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.png)
    }
    .c-mega-menu__card-arrow {
        background-color: #666;
        border-radius: 50%;
        flex: none;
        transition: width .3s ease-out, height .3s ease-out, background-color .3s ease-out, transform .3s ease-out
    }
    .c-mega-menu__card-line {
        background-color: #ddd;
        height: 1px;
        position: relative;
        overflow: hidden
    }
    .c-mega-menu__card-line:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .4s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    .c-footer {
        color: #212121;
        background-color: #fff
    }
    .c-footer__logo {
        font-size: 0;
        line-height: 0
    }
    .c-footer__logo-img {
        width: auto;
        height: 56px
    }
    @media (width<=1023px) {
        .c-footer__logo-img {
            height: 30px
        }
    }
    .c-footer__nav {
        align-items: flex-start;
        gap: 48px;
        width: 100%;
        max-width: 1200px;
        display: flex
    }
    @media (width<=1023px) {
        .c-footer__nav {
            display: none
        }
    }
    .c-footer__col {
        flex-direction: column;
        flex: 1 0 0;
        gap: 40px;
        min-width: 0;
        display: flex
    }
    .c-footer__group {
        flex-direction: column;
        display: flex
    }
    .c-footer__group-title {
        letter-spacing: .06em;
        color: #d50b00;
        align-items: center;
        gap: 6px;
        font-size: .9375rem;
        font-weight: 700;
        line-height: 1.8;
        display: inline-flex
    }
    .c-footer__group-icon {
        width: 15px;
        height: 13px
    }
    .c-footer__divider {
        background-color: #ddd;
        width: 100%;
        height: 1px;
        margin-top: 4px;
        display: block;
        position: relative;
        overflow: hidden
    }
    .c-footer__divider:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .3s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    @media (width>=1024px) {
        .c-footer__group:hover .c-footer__divider:after {
            transform: scaleX(1)
        }
    }
    .c-footer__list {
        flex-direction: column;
        gap: 16px;
        margin-top: 20px;
        display: flex
    }
    .c-footer__item {
        line-height: 1
    }
    .c-footer__link {
        vertical-align: top;
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: .8125rem;
        font-weight: 400;
        transition: color .4s ease-out;
        display: inline-flex
    }
    .c-footer__link:before {
        content: "";
        background-color: #d50b00;
        flex: none;
        width: 6px;
        height: 1px
    }
    @media (width>=1024px) {
        .c-footer__link:hover {
            opacity: 1;
            color: #d50b00
        }
    }
    .c-footer__nav-sp {
        display: none
    }
    @media (width<=1023px) {
        .c-footer__nav-sp {
            flex-direction: column;
            width: 100%;
            padding-inline: 10px;
            display: flex
        }
    }
    .c-footer__acc {
        width: 100%
    }
    .c-footer__acc.is-open .c-footer__acc-title {
        color: #d50b00
    }
    .c-footer__acc-head {
        text-align: left;
        cursor: pointer;
        align-items: center;
        gap: 6px;
        width: 100%;
        padding: 16px 4px;
        display: flex
    }
    .c-footer__acc-trigger {
        text-align: left;
        align-items: center;
        display: inline-flex
    }
    .c-footer__acc-title {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 6px;
        font-size: .9375rem;
        font-weight: 700;
        line-height: 1.8;
        transition: color .3s ease-out;
        display: inline-flex
    }
    .c-footer__acc-toplink-circle {
        opacity: 0;
        flex: none;
        justify-content: center;
        align-items: center;
        width: 22px;
        height: 22px;
        margin-top: 2px;
        margin-left: 6px;
        transition: max-width .3s ease-out, margin-left .3s ease-out, opacity .3s ease-out;
        display: inline-flex;
        position: relative;
        overflow: hidden
    }
    .c-footer__acc-toplink-circle:before {
        content: "";
        background-color: #d50b00;
        border-radius: 50%;
        width: 18px;
        height: 18px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%)
    }
    .c-footer__acc-toplink-circle:after {
        content: "";
        z-index: 1;
        background: url(/cms/riken/img/icn/icn-arrow-short-wh.png) 50%/14px 14px no-repeat;
        width: 14px;
        height: 14px;
        position: relative
    }
    .c-footer__acc.is-open .c-footer__acc-toplink-circle {
        opacity: 1
    }
    .c-footer__acc-toggle {
        flex: none;
        width: 14px;
        height: 14px;
        margin-left: auto;
        position: relative
    }
    .c-footer__acc-toggle:before,
    .c-footer__acc-toggle:after {
        content: "";
        background-color: #d50b00;
        border-radius: 2px;
        position: absolute
    }
    .c-footer__acc-toggle:before {
        height: 2px;
        top: 50%;
        left: 1px;
        right: 1px;
        transform: translateY(-50%)
    }
    .c-footer__acc-toggle:after {
        width: 2px;
        transition: transform .3s ease-out, opacity .3s ease-out;
        top: 1px;
        bottom: 1px;
        left: 50%;
        transform: translate(-50%)
    }
    .is-open .c-footer__acc-toggle:after {
        opacity: 0;
        transform: translate(-50%)scaleY(0)
    }
    .c-footer__acc-arrow {
        flex: none;
        width: 14px;
        height: 14px;
        margin-left: auto
    }
    .c-footer__acc-divider {
        background-color: #ddd;
        width: 100%;
        height: 1px;
        display: block;
        position: relative;
        overflow: hidden
    }
    .c-footer__acc-divider:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .3s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    .c-footer__acc-body {
        max-height: 0;
        transition: max-height .35s ease-out;
        overflow: hidden
    }
    .is-open .c-footer__acc-body {
        max-height: 600px
    }
    .c-footer__acc-list {
        flex-wrap: wrap;
        gap: 16px 10px;
        padding: 4px 4px 24px 16px;
        display: flex
    }
    .c-footer__acc-list .c-footer__link {
        font-size: .75rem
    }
    .c-footer__acc-item {
        width: calc(50% - 5px);
        line-height: 1
    }
    .c-footer__acc-item.is-long {
        flex-grow: 1;
        width: max-content
    }
    .c-footer__acc-item:has(+.is-long) {
        flex-grow: 1;
        width: max-content
    }
    .c-footer__acc-item.is-long+.c-footer__acc-item {
        flex-grow: 1;
        width: max-content
    }
    .c-footer__sub {
        background-color: #f0f0f0;
        padding-block: 18px 19px
    }
    @media (width<=1023px) {
        .c-footer__sub {
            padding-block: 32px 33px
        }
    }
    .c-footer__sub-list {
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        display: flex
    }
    @media (width<=1023px) {
        .c-footer__sub-list {
            flex-direction: column;
            gap: 20px
        }
    }
    .c-footer__sub-item {
        font-size: .6875rem;
        line-height: 1
    }
    @media (width>=1024px) {
        .c-footer__sub-item {
            font-size: .8125rem
        }
        .c-footer__sub-item:not(:last-child) {
            border-right: 1px solid #c5c5c5;
            margin-right: 16px;
            padding-right: 16px
        }
    }
    .c-footer__sub-link {
        letter-spacing: .06em;
        color: #666;
        font-weight: 300
    }
    .c-footer__copy {
        background-color: #212121;
        padding-block: 38px 40px
    }
    .c-footer__copy-text {
        letter-spacing: .06em;
        color: #fff;
        text-align: center;
        font-size: .8125rem;
        font-weight: 300;
        line-height: 1.4;
        display: block
    }
    .c-contact {
        color: #fff;
        position: relative
    }
    .c-contact__link {
        z-index: 1;
        color: inherit;
        display: block;
        position: relative;
        overflow: hidden
    }
    @media (width<=1023px) {
        .c-contact__link {
            flex-direction: column;
            justify-content: center;
            height: 240px;
            display: flex
        }
    }
    .c-contact__link:before {
        content: "";
        z-index: 0;
        background-image: url(/cms/riken/img/common/contact-bg.webp);
        background-position: 50%;
        background-size: cover;
        transition: transform .4s ease-out;
        position: absolute;
        inset: 0
    }
    @media (width<=1023px) {
        .c-contact__link:before {
            background-image: url(/cms/riken/img/common/contact-bg_sp.webp);
            background-size: cover
        }
    }
    .c-contact__link:after {
        content: "";
        z-index: 1;
        opacity: .7;
        background-color: #000;
        transition: opacity .4s ease-out;
        position: absolute;
        inset: 0
    }
    .c-contact__link:hover {
        opacity: 1
    }
    .c-contact__link:hover:before {
        transform: scale(1.04)
    }
    .c-contact__link:hover:after {
        opacity: .5
    }
    @media (width>=1024px) {
        .c-contact__link:hover .c-contact__arrow {
            width: 96px;
            height: 96px;
            transform: translate(8px)
        }
        .c-contact__link:hover .c-contact__arrow>span:before {
            transform: translate(0)
        }
        .c-contact__link:hover .c-contact__arrow>span:after {
            transform: translate(34px)
        }
    }
    .c-contact__inner {
        z-index: 2;
        justify-content: space-between;
        align-items: center;
        gap: 24px;
        max-width: 1000px;
        margin-inline: auto;
        padding: 120px 30px 110px;
        display: flex;
        position: relative
    }
    @media (width<=1023px) {
        .c-contact__inner {
            width: 100%;
            padding: 28px 30px 26px
        }
    }
    .c-contact__text {
        flex-direction: column;
        gap: 20px;
        display: flex
    }
    @media (width<=1023px) {
        .c-contact__text {
            gap: 10px
        }
    }
    .c-contact__en {
        font-family: Barlow, sans-serif;
        font-size: 5rem;
        font-weight: 700;
        line-height: .9
    }
    @media (width<=1023px) {
        .c-contact__en {
            font-size: 2.5rem
        }
    }
    .c-contact__ja {
        letter-spacing: .06em;
        padding-left: 8px;
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-contact__ja {
            padding-left: 2px;
            font-size: .8125rem
        }
    }
    .c-contact__arrow {
        border: 2px solid #fff;
        border-radius: 50%;
        flex: none;
        justify-content: center;
        align-items: center;
        width: 80px;
        height: 80px;
        transition: width .3s ease-out, height .3s ease-out, transform .3s ease-out;
        display: flex
    }
    .c-contact__arrow>span {
        z-index: 1;
        width: 24px;
        height: 24px;
        position: relative;
        overflow: hidden
    }
    .c-contact__arrow>span:before,
    .c-contact__arrow>span:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 24px;
        height: 24px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 12px);
        left: calc(50% - 12px)
    }
    .c-contact__arrow>span:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp);
        transform: translate(-34px)
    }
    .c-contact__arrow>span:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp)
    }
    .c-contact__arrow>span {
        flex: none
    }
    @media (width<=1023px) {
        .c-contact__arrow {
            width: 42px;
            height: 42px
        }
        .c-contact__arrow>span {
            width: 21px;
            height: 21px
        }
        .c-contact__arrow>span:before,
        .c-contact__arrow>span:after {
            background-image: url(/cms/riken/img/icn/icn-arrow-short-wh.webp);
            width: 21px;
            height: 21px;
            top: 0;
            left: 0
        }
        .c-contact__arrow>span:before {
            transform: translate(-32px)
        }
    }
    .c-pagetop {
        z-index: 90;
        color: #d50b00;
        opacity: 0;
        visibility: hidden;
        background-color: #fff;
        border-radius: 50%;
        justify-content: center;
        align-items: center;
        width: 45px;
        height: 45px;
        transition: opacity .3s ease-out, transform .3s ease-out, visibility .3s ease-out;
        display: flex;
        position: fixed;
        bottom: 40px;
        right: max(20px, 50vw - 600px);
        transform: translateY(10px);
        box-shadow: 0 2px 10px #00000026
    }
    .c-pagetop.is-visible {
        opacity: 1;
        visibility: visible;
        transform: translateY(0)
    }
    .c-pagetop:hover .c-pagetop__icon {
        transform: translateY(-2px)
    }
    .c-pagetop__icon {
        width: 32px;
        height: 32px;
        transition: transform .3s ease-out
    }
    @media (width<=1023px) {
        .c-pagetop {
            bottom: 20px;
            right: 16px
        }
    }
    .c-page-ttl {
        margin-bottom: 40px;
        position: relative
    }
    @media (width<=1023px) {
        .c-page-ttl {
            margin-bottom: 0
        }
    }
    .c-page-ttl__bg {
        z-index: 0;
        background: url(/cms/riken/img/common/bg-red.webp) top/cover, #d50b00;
        height: calc(100% - 142px);
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        overflow: clip
    }
    @media (width<=1023px) {
        .c-page-ttl__bg {
            height: calc(100% - 64px)
        }
    }
    .c-page-ttl__bg:before {
        content: "";
        z-index: 1;
        pointer-events: none;
        opacity: .3;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='350' height='500'%3E%3Cline x1='0' y1='0.5' x2='350' y2='0.5' stroke='rgba(255,255,255)'/%3E%3Cline x1='0.5' y1='0' x2='0.5' y2='500' stroke='rgba(255,255,255)'/%3E%3C/svg%3E");
        background-position: 50% 64px;
        background-repeat: repeat;
        background-size: 350px 500px;
        display: block;
        position: absolute;
        inset: 0
    }
    @media (width<=1023px) {
        .c-page-ttl__bg:before {
            opacity: 1;
            background-position: 50% 12px;
            background-size: 82px 118px
        }
    }
    .c-page-ttl__heading {
        z-index: 2;
        padding-inline: 20px;
        flex-direction: column;
        gap: 4px;
        max-width: 1240px;
        margin-inline: auto;
        padding-top: 46px;
        display: flex;
        position: relative
    }
    @media (width<=1023px) {
        .c-page-ttl__heading {
            padding-inline: 30px;
            padding-top: 50px
        }
    }
    .c-page-ttl__label {
        color: #fff;
        letter-spacing: .06em;
        white-space: nowrap;
        background-color: #212121;
        border-radius: 4px;
        justify-content: center;
        align-self: flex-start;
        align-items: center;
        padding: 2px 12px 8px 14px;
        font-size: 1.5rem;
        font-weight: 700;
        display: inline-flex
    }
    @media (width<=1023px) {
        .c-page-ttl__label {
            border-radius: 1px;
            padding: 1px 4px 4px;
            font-size: .75rem
        }
    }
    .c-page-ttl__en {
        color: #fff;
        text-transform: uppercase;
        font-family: Barlow, sans-serif;
        font-size: 5.75rem;
        font-weight: 700;
        line-height: .9
    }
    @media (width<=1023px) {
        .c-page-ttl__en {
            font-size: 2.5rem;
            line-height: .9
        }
    }
    .c-page-ttl__img-area {
        z-index: 2;
        border-top-left-radius: 20px;
        border-bottom-left-radius: 20px;
        width: min(100vw + -1*max(20px, 50vw - 600px), 1960px + -1*max(20px, 50vw - 980px));
        height: 420px;
        margin-top: 40px;
        margin-left: max(20px, 50vw - 600px);
        position: relative;
        overflow: hidden
    }
    @media (width<=1023px) {
        .c-page-ttl__img-area {
            border-radius: 12px 0 0 12px;
            width: calc(100vw - 30px);
            height: 200px;
            margin-top: 30px;
            margin-left: 30px
        }
    }
    .c-page-ttl__img-pic {
        width: 100%;
        height: 100%;
        display: block
    }
    .c-page-ttl__img-pic img {
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
        height: 100%;
        display: block
    }
    .c-section-heading {
        padding-left: 36px;
        border-left: 8px solid #d50b00;
        flex-direction: column;
        gap: 12px;
        margin-bottom: 60px;
        padding-block: 2px 6px;
        display: flex
    }
    .c-section-heading:not(:first-child) {
        margin-top: 96px
    }
    .l-section-side .c-section-heading {
        margin-bottom: 0
    }
    @media (width<=1023px) {
        .c-section-heading {
            border-left-width: 4px;
            gap: 8px;
            margin-bottom: 40px;
            padding-left: 20px
        }
    }
    .c-section-heading__sub {
        color: #d50b00;
        text-transform: uppercase;
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-size: 1.375rem;
        font-weight: 400;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-section-heading__sub {
            font-size: 1.25rem
        }
    }
    .c-section-heading__main {
        letter-spacing: .06em;
        color: #212121;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 3rem;
        font-weight: 700;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-section-heading__main {
            font-size: 1.75rem;
            line-height: 1.2
        }
    }
    .c-section-heading--h3 {
        letter-spacing: .06em;
        color: #fff;
        background-color: #212121;
        border-radius: 3px;
        width: fit-content;
        padding: 8px 11px 10px 12px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 2rem;
        font-weight: 700;
        line-height: 1;
        display: block
    }
    .c-section-heading--h3:not(:first-child) {
        margin-top: 64px
    }
    .parts-table-scroll+.c-section-heading--h3 {
        margin-top: 90px
    }
    @media (width<=1023px) {
        .c-section-heading--h3 {
            font-size: 1.25rem
        }
        .parts-table-scroll+.c-section-heading--h3 {
            margin-top: 64px
        }
    }
    .c-section-heading--h3-plain {
        letter-spacing: .06em;
        color: #212121;
        width: fit-content;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 2rem;
        font-weight: 700;
        line-height: 1;
        display: block
    }
    .c-section-heading--h3-plain:not(:first-child) {
        margin-top: 64px
    }
    @media (width<=1023px) {
        .c-section-heading--h3-plain {
            font-size: 1.25rem
        }
    }
    .c-section-heading--h4 {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 12px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1.5;
        display: flex
    }
    .c-section-heading--h4:not(:first-child) {
        margin-top: 64px
    }
    .c-section-heading--h4:before {
        content: "";
        background-color: #d50b00;
        flex: none;
        width: 18px;
        height: 2px
    }
    @media (width<=1023px) {
        .c-section-heading--h4 {
            font-size: 1rem
        }
    }
    .c-section-heading--h4-plain {
        letter-spacing: .06em;
        color: #212121;
        align-items: center;
        gap: 12px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1.5;
        display: flex
    }
    .c-section-heading--h4-plain:not(:first-child) {
        margin-top: 96px
    }
    @media (width<=1023px) {
        .c-section-heading--h4-plain {
            font-size: 1rem
        }
    }
    .c-section-heading--h5 {
        letter-spacing: .06em;
        color: #d50b00;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.5;
        display: block
    }
    .c-section-heading--h5:not(:first-child) {
        margin-top: 96px
    }
    @media (width<=1023px) {
        .c-section-heading--h5 {
            font-size: 1rem
        }
    }
    .c-section-heading--h5-plain {
        letter-spacing: .06em;
        color: #212121;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.5;
        display: block
    }
    .c-section-heading--h5-plain:not(:first-child) {
        margin-top: 96px
    }
    @media (width<=1023px) {
        .c-section-heading--h5-plain {
            font-size: 1rem
        }
    }
    .c-section-heading--h3+.c-section-heading--h3,
    .c-section-heading--h3+.c-section-heading--h3-plain,
    .c-section-heading--h3+.c-section-heading--h4,
    .c-section-heading--h3+.c-section-heading--h4-plain,
    .c-section-heading--h3+.c-section-heading--h5,
    .c-section-heading--h3+.c-section-heading--h5-plain,
    .c-section-heading--h3-plain+.c-section-heading--h3,
    .c-section-heading--h3-plain+.c-section-heading--h3-plain,
    .c-section-heading--h3-plain+.c-section-heading--h4,
    .c-section-heading--h3-plain+.c-section-heading--h4-plain,
    .c-section-heading--h3-plain+.c-section-heading--h5,
    .c-section-heading--h3-plain+.c-section-heading--h5-plain,
    .c-section-heading--h4+.c-section-heading--h3,
    .c-section-heading--h4+.c-section-heading--h3-plain,
    .c-section-heading--h4+.c-section-heading--h4,
    .c-section-heading--h4+.c-section-heading--h4-plain,
    .c-section-heading--h4+.c-section-heading--h5,
    .c-section-heading--h4+.c-section-heading--h5-plain,
    .c-section-heading--h4-plain+.c-section-heading--h3,
    .c-section-heading--h4-plain+.c-section-heading--h3-plain,
    .c-section-heading--h4-plain+.c-section-heading--h4,
    .c-section-heading--h4-plain+.c-section-heading--h4-plain,
    .c-section-heading--h4-plain+.c-section-heading--h5,
    .c-section-heading--h4-plain+.c-section-heading--h5-plain,
    .c-section-heading--h5+.c-section-heading--h3,
    .c-section-heading--h5+.c-section-heading--h3-plain,
    .c-section-heading--h5+.c-section-heading--h4,
    .c-section-heading--h5+.c-section-heading--h4-plain,
    .c-section-heading--h5+.c-section-heading--h5,
    .c-section-heading--h5+.c-section-heading--h5-plain,
    .c-section-heading--h5-plain+.c-section-heading--h3,
    .c-section-heading--h5-plain+.c-section-heading--h3-plain,
    .c-section-heading--h5-plain+.c-section-heading--h4,
    .c-section-heading--h5-plain+.c-section-heading--h4-plain,
    .c-section-heading--h5-plain+.c-section-heading--h5,
    .c-section-heading--h5-plain+.c-section-heading--h5-plain {
        margin-top: 28px
    }
    .c-media-text {
        align-items: flex-start;
        gap: 48px;
        display: flex
    }
    @media (width<=1023px) {
        .c-media-text {
            flex-direction: column;
            gap: 48px
        }
    }
    .c-media-text__text-area {
        flex: 1;
        min-width: 0
    }
    .c-media-text__more {
        display: none
    }
    @media (width<=1023px) {
        .c-media-text__more {
            flex-direction: column;
            align-items: center;
            gap: 12px;
            width: 100%;
            margin-top: 20px;
            display: flex
        }
        .is-expanded .c-media-text__more {
            display: none
        }
    }
    .c-media-text__more-label {
        letter-spacing: .06em;
        color: #d50b00;
        text-transform: uppercase;
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-size: 1.125rem;
        font-weight: 400;
        line-height: 1
    }
    .c-media-text__more-icon {
        background: url(/cms/riken/img/icn/icn-arrow-down.webp) 50%/contain no-repeat;
        width: 12px;
        height: 6px;
        display: block
    }
    .c-media-text__body {
        letter-spacing: .06em;
        color: #212121;
        flex-direction: column;
        gap: 28px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: .9375rem;
        font-weight: 500;
        line-height: 1.8;
        display: flex
    }
    @media (width<=1023px) {
        .c-media-text__body {
            gap: 20px;
            max-height: 220px;
            font-size: .875rem;
            transition: max-height .4s ease-out;
            position: relative;
            overflow: hidden
        }
        .is-expanded .c-media-text__body {
            overflow: visible
        }
    }
    .c-media-text__img-area {
        flex-direction: column;
        flex: none;
        order: 2;
        align-items: center;
        gap: 16px;
        display: flex
    }
    @media (width<=1023px) {
        .c-media-text__img-area {
            order: 0;
            align-self: center
        }
    }
    .c-media-text__img {
        border-radius: 11px;
        width: 315px;
        overflow: hidden
    }
    .c-media-text__img-pic {
        width: 100%;
        display: block
    }
    .c-media-text__img-pic img {
        width: 100%;
        height: auto;
        display: block
    }
    .c-media-text__name {
        width: 310px;
        height: auto
    }
    @media (width<=1023px) {
        .c-media-text__name {
            width: 240px
        }
    }
    .c-link-cards {
        flex-direction: column;
        gap: 12px;
        display: flex
    }
    @media (width<=1023px) {
        .c-link-cards {
            gap: 20px
        }
    }
    .c-link-cards__row {
        gap: 12px;
        display: flex
    }
    @media (width<=1023px) {
        .c-link-cards__row {
            flex-direction: column;
            gap: 20px
        }
    }
    .c-link-card {
        color: #fff;
        border-radius: 8px;
        flex: 1;
        height: 254px;
        display: block;
        position: relative;
        overflow: hidden
    }
    @media (width<=1023px) {
        .c-link-card {
            border-radius: 10px;
            flex: auto;
            height: 184px
        }
    }
    .c-link-card:after {
        content: "";
        z-index: 1;
        opacity: .5;
        background-color: #000;
        transition: opacity .4s ease-out;
        position: absolute;
        inset: 0
    }
    .c-link-card:hover {
        opacity: 1
    }
    .c-link-card:hover .c-link-card__img {
        transform: scale(1.04)
    }
    .c-link-card:hover:after {
        opacity: .3
    }
    @media (width>=1024px) {
        .c-link-card:hover .c-link-card__arrow {
            background-color: #d50b00;
            width: 28px;
            height: 28px;
            transform: translate(2px, 2px)
        }
        .c-link-card:hover .c-link-card__arrow:before {
            transform: translate(0)
        }
        .c-link-card:hover .c-link-card__arrow:after {
            transform: translate(22px)
        }
    }
    .c-link-card__img {
        z-index: 0;
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: transform .4s ease-out;
        display: block;
        position: absolute;
        inset: 0
    }
    .c-link-card__inner {
        z-index: 2;
        flex-direction: column;
        justify-content: space-between;
        height: 100%;
        padding: 24px;
        display: flex;
        position: relative
    }
    @media (width<=1023px) {
        .c-link-card__inner {
            padding: 16px
        }
    }
    .c-link-card__text {
        filter: drop-shadow(0 0 15px #00000080);
        flex-direction: column;
        gap: 8px;
        display: flex
    }
    .c-link-card__title {
        letter-spacing: .06em;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-link-card__title {
            font-size: 1.125rem
        }
    }
    .c-link-card__sub {
        letter-spacing: .02em;
        text-transform: uppercase;
        padding-left: 2px;
        font-family: Barlow, sans-serif;
        font-size: .875rem;
        font-weight: 600
    }
    @media (width<=1023px) {
        .c-link-card__sub {
            font-size: .75rem
        }
    }
    .c-link-card__arrow {
        z-index: 1;
        width: 24px;
        height: 24px;
        position: relative;
        overflow: hidden
    }
    .c-link-card__arrow:before,
    .c-link-card__arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 14px;
        height: 14px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 7px);
        left: calc(50% - 7px)
    }
    .c-link-card__arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-wh.webp);
        transform: translate(-22px)
    }
    .c-link-card__arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow.webp)
    }
    .c-link-card__arrow {
        background-color: #fff;
        border-radius: 50%;
        flex: none;
        align-self: flex-end;
        transition: width .3s ease-out, height .3s ease-out, background-color .3s ease-out, transform .3s ease-out
    }
    .c-photo-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 80px 48px;
        display: grid
    }
    @media (width<=1023px) {
        .c-photo-cards {
            grid-template-columns: 1fr;
            gap: 60px
        }
    }
    .c-photo-card {
        flex-direction: column;
        display: flex
    }
    .c-photo-card:is(a):hover {
        opacity: 1
    }
    .c-photo-card:is(a):hover .c-photo-card__img img {
        filter: brightness(.7);
        transform: scale(1.04)
    }
    .c-photo-card:is(a):hover .c-photo-card__more-label {
        color: #d50b00
    }
    .c-photo-card:is(a):hover .c-photo-card__more-line:after {
        transform: scaleX(1)
    }
    .c-photo-card:is(a):hover .c-photo-card__more-row {
        padding-left: 8px
    }
    .c-photo-card:is(a):hover .c-photo-card__more-arrow {
        background-color: #d50b00;
        width: 28px;
        height: 28px
    }
    .c-photo-card:is(a):hover .c-photo-card__more-arrow:before {
        transform: translate(0)
    }
    .c-photo-card:is(a):hover .c-photo-card__more-arrow:after {
        transform: translate(20px)
    }
    .c-photo-card__img {
        aspect-ratio: 4/3;
        border-radius: 10px;
        overflow: hidden
    }
    @media (width<=1023px) {
        .c-photo-card__img {
            border-radius: 8px
        }
    }
    .c-photo-card__img img {
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
        height: 100%;
        transition: transform .4s ease-out, filter .4s ease-out
    }
    .c-photo-card__title {
        letter-spacing: .06em;
        text-align: center;
        color: #212121;
        margin-top: 16px;
        font-size: 1.125rem;
        font-weight: 700
    }
    .c-photo-card__desc {
        letter-spacing: .06em;
        color: #212121;
        margin-top: 16px;
        font-size: .875rem;
        line-height: 1.8
    }
    @media (width<=1023px) {
        .c-photo-card__desc {
            font-size: .8125rem
        }
    }
    .c-photo-card__more {
        flex-direction: column;
        gap: 16px;
        margin-top: auto;
        padding-top: 16px;
        display: flex
    }
    .c-photo-card__more-row {
        justify-content: space-between;
        align-items: center;
        padding-inline: 4px;
        transition: padding-left .3s ease-out;
        display: flex
    }
    .c-photo-card__more-label {
        letter-spacing: .06em;
        color: #212121;
        font-size: 1rem;
        font-weight: 700;
        transition: color .3s ease-out
    }
    @media (width<=1023px) {
        .c-photo-card__more-label {
            font-size: .9375rem
        }
    }
    .c-photo-card__more-arrow {
        z-index: 1;
        width: 24px;
        height: 24px;
        position: relative;
        overflow: hidden
    }
    .c-photo-card__more-arrow:before,
    .c-photo-card__more-arrow:after {
        content: "";
        background: 50%/contain no-repeat;
        width: 18px;
        height: 18px;
        transition: transform .45s ease-out;
        position: absolute;
        top: calc(50% - 9px);
        left: calc(50% - 9px)
    }
    .c-photo-card__more-arrow:before {
        background-image: url(/cms/riken/img/icn/icn-arrow-short-wh.png);
        transform: translate(-26px)
    }
    .c-photo-card__more-arrow:after {
        background-image: url(/cms/riken/img/icn/icn-arrow-short-wh.png)
    }
    .c-photo-card__more-arrow {
        background-color: #666;
        border-radius: 50%;
        flex: none;
        transition: width .3s ease-out, height .3s ease-out
    }
    .c-photo-card__more-line {
        background-color: #ddd;
        height: 1px;
        position: relative;
        overflow: hidden
    }
    .c-photo-card__more-line:after {
        content: "";
        transform-origin: 0;
        background-color: #d50b00;
        transition: transform .4s ease-out;
        position: absolute;
        inset: 0;
        transform: scaleX(0)
    }
    .c-note {
        letter-spacing: .06em;
        text-indent: -1em;
        color: #666;
        text-align: right;
        padding-left: 1em;
        font-size: .8125rem;
        line-height: 1.8
    }
    @media (width<=1023px) {
        .c-note {
            text-align: left
        }
    }
    .c-anchor-nav {
        justify-content: center;
        margin-top: 120px;
        margin-bottom: 120px;
        padding-inline: 200px;
        display: flex
    }
    @media (width<=1023px) {
        .c-anchor-nav {
            margin-top: 60px;
            margin-bottom: 72px;
            padding-inline: 20px
        }
    }
    .c-anchor-nav__list {
        gap: 68px;
        display: flex
    }
    @media (width<=1023px) {
        .c-anchor-nav__list {
            justify-content: center;
            gap: 15px;
            width: 100%
        }
    }
    .c-anchor-nav__item {
        flex: none;
        width: 165px
    }
    @media (width<=1023px) {
        .c-anchor-nav__item {
            flex: 1;
            width: auto;
            max-width: 100px
        }
    }
    .c-anchor-nav__link {
        color: #212121;
        flex-direction: column;
        align-items: center;
        gap: 16px;
        width: 100%;
        line-height: 1.3;
        display: flex
    }
    @media (width<=1023px) {
        .c-anchor-nav__link {
            gap: 11px
        }
    }
    .c-anchor-nav__num {
        letter-spacing: .04em;
        color: #d50b00;
        text-align: center;
        width: 100%;
        font-family: Barlow, sans-serif;
        font-size: 3rem;
        font-weight: 700;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-anchor-nav__num {
            letter-spacing: 0;
            font-size: 1.75rem
        }
    }
    .c-anchor-nav__body {
        border-bottom: 6px solid #d50b00;
        flex-direction: column;
        align-items: center;
        gap: 2px;
        width: 100%;
        padding-bottom: 12px;
        display: flex
    }
    @media (width<=1023px) {
        .c-anchor-nav__body {
            border-bottom-width: 3px;
            gap: 2px;
            padding-bottom: 8px
        }
    }
    .c-anchor-nav__pre {
        letter-spacing: .06em;
        text-indent: .06em;
        white-space: nowrap;
        align-items: baseline;
        gap: 1px;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-weight: 700;
        display: flex
    }
    @media (width<=1023px) {
        .c-anchor-nav__pre {
            letter-spacing: 0
        }
    }
    .c-anchor-nav__pre-main {
        font-size: 1.25rem
    }
    @media (width<=1023px) {
        .c-anchor-nav__pre-main {
            font-size: .875rem
        }
    }
    .c-anchor-nav__pre-sub {
        font-size: 1.125rem
    }
    @media (width<=1023px) {
        .c-anchor-nav__pre-sub {
            font-size: .75rem
        }
    }
    .c-anchor-nav__main {
        letter-spacing: .1em;
        text-indent: .1em;
        white-space: nowrap;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-weight: 700;
        display: flex
    }
    .c-anchor-nav__main-text {
        font-size: 2rem
    }
    @media (width<=1023px) {
        .c-anchor-nav__main-text {
            letter-spacing: 0;
            font-size: 1.19rem
        }
    }
    .c-anchor-nav__mark {
        margin: -.035em -.2em 0;
        font-size: 2.5rem;
        line-height: 1
    }
    @media (width<=1023px) {
        .c-anchor-nav__mark {
            font-size: 1.375rem
        }
    }
    :root {
        --color-primary: #d50b00;
        --color-text: #212121;
        --color-text-muted: #666;
        --color-bg: #fff;
        --color-bg-gray: #f8f8f8;
        --color-bg-gray-mid: #f0f0f0;
        --color-bg-dark: #212121;
        --color-border: #ddd;
        --color-border-mid: #c5c5c5
    }
    .c-accordion {
        background-color: #fff;
        border-radius: 8px;
        padding: 32px
    }
    @media (width<=1023px) {
        .c-accordion {
            padding: 20px
        }
    }
    .c-accordion__head {
        text-align: left;
        cursor: pointer;
        background: 0 0;
        border: 0;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        width: 100%;
        padding-inline: 12px;
        display: flex
    }
    @media (width<=1023px) {
        .c-accordion__head {
            padding-inline: 4px
        }
    }
    .c-accordion__title {
        letter-spacing: .12em;
        color: #212121;
        flex: 1;
        min-width: 0;
        font-family: Noto Sans JP, Hiragino Kaku Gothic ProN, Hiragino Sans, Meiryo, sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        line-height: 1.8;
        transition: color .3s ease-out
    }
    @media (width<=1023px) {
        .c-accordion__title {
            letter-spacing: .06em;
            font-size: 1.125rem;
            line-height: 2
        }
    }
    .c-accordion__toggle {
        flex: none;
        width: 32px;
        height: 32px;
        position: relative
    }
    @media (width<=1023px) {
        .c-accordion__toggle {
            width: 24px;
            height: 24px
        }
    }
    .c-accordion__toggle:before,
    .c-accordion__toggle:after {
        content: "";
        background-color: #d50b00;
        border-radius: 2px;
        transition: opacity .3s ease-out, transform .3s ease-out;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%)
    }
    .c-accordion__toggle:before {
        width: 20px;
        height: 3px
    }
    @media (width<=1023px) {
        .c-accordion__toggle:before {
            width: 14px;
            height: 2px
        }
    }
    .c-accordion__toggle:after {
        width: 3px;
        height: 20px
    }
    @media (width<=1023px) {
        .c-accordion__toggle:after {
            width: 2px;
            height: 14px
        }
    }
    .c-accordion__body {
        max-height: 0;
        transition: max-height .4s ease-out;
        overflow: hidden
    }
    .c-accordion__inner {
        border-top: 1px solid #f0f0f0;
        margin-top: 20px;
        padding-top: 20px
    }
    .c-accordion.is-open .c-accordion__body {
        max-height: 9999px
    }
    .c-accordion.is-open .c-accordion__title {
        color: #d50b00
    }
    .c-accordion.is-open .c-accordion__toggle:after {
        opacity: 0;
        transform: translate(-50%, -50%)rotate(90deg)
    }
}

@layer utility {
    @media (width>=1024px) {
        .u-sp {
            display: none!important
        }
    }
    @media (width<=1023px) {
        .u-pc {
            display: none!important
        }
    }
    .u-visually-hidden {
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
        width: 1px;
        height: 1px;
        margin: -1px;
        padding: 0;
        position: absolute;
        overflow: hidden
    }
    .font-en {
        font-family: Barlow, sans-serif;
        font-weight: 600
    }
    .font-deco {
        font-family: ZCOOL QingKe HuangYou, sans-serif;
        font-weight: 400
    }
    .u-text-left {
        text-align: left!important
    }
    .u-text-center {
        text-align: center!important
    }
    .u-text-right {
        text-align: right!important
    }
    .u-text-sm {
        font-size: .875rem!important
    }
    .u-text-xs {
        font-size: .75rem!important
    }
    .u-text-bold {
        font-weight: 700!important
    }
    .u-text-normal {
        font-weight: 400!important
    }
    .u-text-muted {
        color: #666!important
    }
    .u-text-primary {
        color: #d50b00!important
    }
    .u-text-white {
        color: #fff!important
    }
    :root {
        --color-primary: #d50b00;
        --color-text: #212121;
        --color-text-muted: #666;
        --color-bg: #fff;
        --color-bg-gray: #f8f8f8;
        --color-bg-gray-mid: #f0f0f0;
        --color-bg-dark: #212121;
        --color-border: #ddd;
        --color-border-mid: #c5c5c5
    }
    .u-mt-4 {
        margin-top: .25rem!important
    }
    .u-mb-4 {
        margin-bottom: .25rem!important
    }
    .u-pt-4 {
        padding-top: .25rem!important
    }
    .u-pb-4 {
        padding-bottom: .25rem!important
    }
    .u-mt-8 {
        margin-top: .5rem!important
    }
    .u-mb-8 {
        margin-bottom: .5rem!important
    }
    .u-pt-8 {
        padding-top: .5rem!important
    }
    .u-pb-8 {
        padding-bottom: .5rem!important
    }
    .u-mt-12 {
        margin-top: .75rem!important
    }
    .u-mb-12 {
        margin-bottom: .75rem!important
    }
    .u-pt-12 {
        padding-top: .75rem!important
    }
    .u-pb-12 {
        padding-bottom: .75rem!important
    }
    .u-mt-16 {
        margin-top: 1rem!important
    }
    .u-mb-16 {
        margin-bottom: 1rem!important
    }
    .u-pt-16 {
        padding-top: 1rem!important
    }
    .u-pb-16 {
        padding-bottom: 1rem!important
    }
    .u-mt-20 {
        margin-top: 1.25rem!important
    }
    .u-mb-20 {
        margin-bottom: 1.25rem!important
    }
    .u-pt-20 {
        padding-top: 1.25rem!important
    }
    .u-pb-20 {
        padding-bottom: 1.25rem!important
    }
    .u-mt-24 {
        margin-top: 1.5rem!important
    }
    .u-mb-24 {
        margin-bottom: 1.5rem!important
    }
    .u-pt-24 {
        padding-top: 1.5rem!important
    }
    .u-pb-24 {
        padding-bottom: 1.5rem!important
    }
    .u-mt-32 {
        margin-top: 2rem!important
    }
    .u-mb-32 {
        margin-bottom: 2rem!important
    }
    .u-pt-32 {
        padding-top: 2rem!important
    }
    .u-pb-32 {
        padding-bottom: 2rem!important
    }
    .u-mt-40 {
        margin-top: 2.5rem!important
    }
    .u-mb-40 {
        margin-bottom: 2.5rem!important
    }
    .u-pt-40 {
        padding-top: 2.5rem!important
    }
    .u-pb-40 {
        padding-bottom: 2.5rem!important
    }
    .u-mt-48 {
        margin-top: 3rem!important
    }
    .u-mb-48 {
        margin-bottom: 3rem!important
    }
    .u-pt-48 {
        padding-top: 3rem!important
    }
    .u-pb-48 {
        padding-bottom: 3rem!important
    }
    .u-mt-64 {
        margin-top: 4rem!important
    }
    .u-mb-64 {
        margin-bottom: 4rem!important
    }
    .u-pt-64 {
        padding-top: 4rem!important
    }
    .u-pb-64 {
        padding-bottom: 4rem!important
    }
    .u-mt-80 {
        margin-top: 5rem!important
    }
    .u-mb-80 {
        margin-bottom: 5rem!important
    }
    .u-pt-80 {
        padding-top: 5rem!important
    }
    .u-pb-80 {
        padding-bottom: 5rem!important
    }
    .u-mt-96 {
        margin-top: 6rem!important
    }
    .u-mb-96 {
        margin-bottom: 6rem!important
    }
    .u-pt-96 {
        padding-top: 6rem!important
    }
    .u-pb-96 {
        padding-bottom: 6rem!important
    }
}