html {
    font-size: max(3.6505867014vw, 14px);
}
@media screen and (min-width: 900px) {
    html {
        font-size: min(1.5625vw, 16px);
    }
}

body {
    font-family: "Zen Kaku Gothic New", sans-serif;
    color: #ffffff;
    font-weight: 500;
}

img {
    width: 100%;
}

.sp-hidden {
    display: none;
}
@media screen and (min-width: 900px) {
    .sp-hidden {
        display: block;
    }
}

.pc-hidden {
    display: block;
}
@media screen and (min-width: 900px) {
    .pc-hidden {
        display: none;
    }
}

.fv {
    width: 100%;
    height: 100vh;
    padding-top: 23.7142857143rem;
    min-height: 52.1428571429rem;
    background: url(../../assets/images/fv.png) no-repeat center center/cover;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
}
@media screen and (min-width: 900px) {
    .fv {
        padding-top: 17.125rem;
        min-height: 48rem;
        background: url(../../assets/images/pc/fv.jpg) no-repeat center center/cover;
    }
}

.fv__site-logo {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 10rem;
    opacity: 0;
}
@media screen and (min-width: 900px) {
    .fv__site-logo {
        width: 14rem;
    }
}

.fv__text-wrap {
    max-width: 1356px;
    margin-inline: auto;
}
.fv__text-wrap img {
    width: 100%;
    -o-object-fit: contain;
    object-fit: contain;
}

.message {
    padding-block: 4.2857142857rem;
    background: url(../images/message-bg.png) no-repeat center center/cover;
    margin-top: 100vh;
}
@media screen and (min-width: 900px) {
    .message {
        padding-block: 4.625rem 4.4375rem;
        background: url(../images/pc/message-bg.jpg) no-repeat center center/cover;
    }
}

.message__inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    row-gap: 2.1428571429rem;
    padding-inline: 2.7142857143rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .message__inner {
        row-gap: 3.375rem;
        max-width: 39.875rem;
        padding-inline: 1.25rem;
    }
}

.message__text {
    font-size: 1.1428571429rem;
    text-align: center;
    line-height: 1.75;
    letter-spacing: 1.5px;
}
@media screen and (min-width: 900px) {
    .message__text {
        font-size: 1.5rem;
        line-height: 1.44;
        letter-spacing: 1.5px;
    }
}

.message__icon img {
    width: 6.0714285714rem;
}
@media screen and (min-width: 900px) {
    .message__icon img {
        width: 5.3125rem;
    }
}

.anniversary {
    padding-top: 5.2857142857rem;
    padding-bottom: 23.0714285714rem;
    background: url(../images/anniversary-bg.png) no-repeat center center/cover;
}
@media screen and (min-width: 900px) {
    .anniversary {
        background: url(../images/pc/anniversary-bg.jpg) no-repeat center center/cover;
        padding-top: 4.625rem;
        padding-bottom: 20.25rem;
    }
}

.anniversary__inner {
    padding-inline: 2rem;
}
@media screen and (min-width: 900px) {
    .anniversary__inner {
        padding-inline: 1.25rem;
    }
}

.anniversary__content {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    text-align: center;
}

.anniversary__icon img {
    width: 9.7142857143rem;
}
@media screen and (min-width: 900px) {
    .anniversary__icon img {
        width: 8.5rem;
    }
}

.anniversary__text-1 {
    margin-top: 0.5714285714rem;
    font-size: 1.7142857143rem;
    line-height: 1.6;
}
@media screen and (min-width: 900px) {
    .anniversary__text-1 {
        margin-top: 0.5rem;
        font-size: 2rem;
        line-height: 1.5;
    }
}

.anniversary__text-2 {
    margin-top: 0.8571428571rem;
    font-size: 1.1428571429rem;
    line-height: 1.8;
}
@media screen and (min-width: 900px) {
    .anniversary__text-2 {
        margin-top: 1.25rem;
        font-size: 1.125rem;
        line-height: 1.6;
    }
}

.brand {
    background: url(../../assets/images/brand-pyramid-bg.png) no-repeat center center/cover;
    padding-block: 3.0214285714rem 3.1428571429rem;
}
@media screen and (min-width: 900px) {
    .brand {
        background: url(../../assets/images/pc/brand-pyramid-bg.jpg) no-repeat center center/cover;
        padding-block: 2.64375rem;
    }
}

.brand__inner {
    padding-inline: 1.2857142857rem;
}
@media screen and (min-width: 900px) {
    .brand__inner {
        padding-inline: 0.625rem;
    }
}

.brand__image {
    max-width: 29.0714285714rem;
    margin-inline: auto;
}
.brand__image img {
    width: 100%;
    max-height: 683.38px;
    -o-object-fit: contain;
    object-fit: contain;
}

.action__view {
    padding-block: 12.9285714286rem 16.75rem;
    background: url(../../assets/images/brave-action-six-bg.png) no-repeat center center/cover;
}
@media screen and (min-width: 900px) {
    .action__view {
        padding-block: 9.375rem 12.5rem;
        background: url(../../assets/images/pc/brave-action-six-bg.jpg) no-repeat center center/cover;
    }
}

.action__view-image {
    max-width: 17.6428571429rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .action__view-image {
        max-width: 18.3125rem;
    }
}

@media screen and (min-width: 900px) {
    .action__contents {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        background: #ffffff;
    }
}

.action__left-side {
    display: none;
}
@media screen and (min-width: 900px) {
    .action__left-side {
        display: block;
        position: sticky;
        top: 0;
        height: 100vh;
        width: 50%;
        -ms-flex-negative: 0;
        flex-shrink: 0;
    }
    .action__left-side img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        -o-object-fit: cover;
        object-fit: cover;
        opacity: 0;
        -webkit-transition: opacity 0.6s ease;
        transition: opacity 0.6s ease;
    }
    .action__left-side img.is-active {
        opacity: 1;
    }
}

@media screen and (min-width: 900px) {
    .action__items {
        -webkit-box-flex: 1;
        -ms-flex-positive: 1;
        flex-grow: 1;
    }
}

.action__item:nth-of-type(3) .action__item-content {
    padding-bottom: 3.5714285714rem;
}
@media screen and (min-width: 900px) {
    .action__item:nth-of-type(3) .action__item-content {
        padding-bottom: 10.625rem;
    }
}

@media screen and (min-width: 900px) {
    .action__item-image {
        display: none;
    }
}

.action__item-content {
    padding-top: 5rem;
    padding-inline: 1.4285714286rem;
    background: #00a7ff;
}
.action__item-content:nth-child(2) {
    padding-top: 6.8571428571rem;
    padding-bottom: 4.7142857143rem;
}
@media screen and (min-width: 900px) {
    .action__item-content:nth-child(2) {
        padding-top: 8.75rem;
        padding-bottom: 10.625rem;
    }
}
@media screen and (min-width: 900px) {
    .action__item-content {
        padding-top: 10.6875rem;
        padding-inline: 1.25rem;
        padding-bottom: 10.625rem;
    }
}

@media screen and (min-width: 900px) {
    .action__item-content-inner {
        max-width: 462px;
        margin-inline: auto;
    }
}

.action__item-head {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    row-gap: 2.5714285714rem;
}
@media screen and (min-width: 900px) {
    .action__item-head {
        row-gap: 2.25rem;
    }
}

.action__item-head-en {
    max-width: 7.4285714286rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .action__item-head-en {
        max-width: 6.625rem;
    }
}

.action__item-head-ja {
    font-size: 2.1428571429rem;
    text-align: center;
}
@media screen and (min-width: 900px) {
    .action__item-head-ja {
        font-size: 2.25rem;
    }
}

.action__item-text {
    margin-top: 2.5714285714rem;
    font-size: 1.1428571429rem;
    text-align: justify;
    line-height: 1.88;
    letter-spacing: 0.8px;
}
@media screen and (min-width: 900px) {
    .action__item-text {
        margin-top: 2.25rem;
        font-size: 1rem;
        line-height: 2;
        letter-spacing: 2.5px;
    }
}

.contact {
    background: url(../../assets/images/contact-bg.jpg) no-repeat center center/cover;
}
@media screen and (min-width: 900px) {
    .contact {
        background: url(../../assets/images/pc/contact-bg.jpg) no-repeat center center/cover;
    }
}
.contact__link {
    display: block;
    height: 100%;
    transition: opacity 0.3s ease;
}
.contact__link:hover {
    opacity: 0.7;
}
.contact__inner {
    padding-block: 18.9428571429rem 19.0857142857rem;
    padding-inline: 1.4285714286rem;
}
@media screen and (min-width: 900px) {
    .contact__inner {
        padding-block: 14.625rem 18.375rem;
        padding-inline: 1.25rem;
    }
}

.contact__image {
    max-width: 21.5714285714rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .contact__image {
        max-width: 35.7142857143rem;
    }
}

.footer {
    padding-block: 5rem 5.7142857143rem;
    color: #000000;
    background: #ffffff;
    text-align: center;
}
@media screen and (min-width: 900px) {
    .footer {
        padding-block: 4.375rem 5rem;
    }
}

.footer__inner {
    padding-inline: 0.7142857143rem;
    max-width: 24.7142857143rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .footer__inner {
        padding-inline: 0.625rem;
        max-width: 21.625rem;
    }
}

.footer__image {
    max-width: 15rem;
    margin-inline: auto;
}
@media screen and (min-width: 900px) {
    .footer__image {
        max-width: 13.125rem;
    }
}

.footer__text {
    margin-top: 3.4285714286rem;
    font-size: 1rem;
    line-height: 2.1;
    letter-spacing: 1.4px;
}
@media screen and (min-width: 900px) {
    .footer__text {
        margin-top: 3.125rem;
        font-size: 0.875rem;
    }
}

.footer__small {
    margin-top: 1.4285714286rem;
    font-size: 0.7142857143rem;
    letter-spacing: 1.4px;
}
@media screen and (min-width: 900px) {
    .footer__small {
        margin-top: 1.25rem;
        font-size: 0.625rem;
    }
}