html:has(body.kawakyu-yukyu-page),
body.kawakyu-yukyu-page {
    overflow-x: clip !important;
    overflow-y: visible !important;
}

.kawakyu-yukyu-page {
    background: #000;
}

.kawakyu-yukyu-page .yukyu-page {
    margin: 0;
    overflow: clip;
    background: #000;
    color: #fff;
    font-family: "Shippori Mincho", "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
}

.yukyu-story {
    position: relative;
    height: 700vh;
    height: 700svh;
}

.yukyu-story__stage {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
    height: 100svh;
    overflow: hidden;
    background: #000;
}

.yukyu-story__background {
    position: absolute;
    z-index: 0;
    top: 0;
    left: 50%;
    width: max(100vw, 145svh);
    height: max(100vw, 145svh);
    max-width: none;
    object-fit: cover;
    transform: translate3d(-50%, 0, 0);
    will-change: transform;
}

.yukyu-story__filter,
.yukyu-story__light,
.yukyu-story__blackout {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

/* 導入の暗転後は同じ黒背景のループギャラリーへ継続する。 */
.yukyu-loop-slider {
    position: fixed;
    z-index: 10;
    inset: 0;
    height: 100svh;
    background: #000;
    opacity: 0;
    pointer-events: none;
    /* story の暗転が完了した時点で黒幕だけは即座に前面へ出す。
       背景ごとフェードすると、背面の通常セクションが一瞬見えてしまう。 */
    transition: none;
}

.yukyu-loop-slider__frame {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: #000;
}

.yukyu-loop-slider.is-active {
    opacity: 1;
    pointer-events: auto;
}

/* 黒幕の上で、ギャラリーの中身だけを表示する。 */
.yukyu-loop-slider:not(.is-active) .yukyu-loop-slider__stage,
.yukyu-loop-slider:not(.is-active) .yukyu-loop-slider__captions {
    opacity: 0;
}

.yukyu-loop-slider.is-active .yukyu-loop-slider__stage,
.yukyu-loop-slider.is-active .yukyu-loop-slider__captions {
    opacity: 1;
}

.yukyu-loop-slider.is-complete {
    position: relative;
    z-index: 1;
    opacity: 1;
    pointer-events: none;
}

.yukyu-story__filter {
    z-index: 1;
    background: rgba(5, 7, 6, .7);
    backdrop-filter: saturate(.72) brightness(.9);
    -webkit-backdrop-filter: saturate(.72) brightness(.9);
}

.yukyu-story__light {
    z-index: 1;
    background: radial-gradient(circle at 50% 48%, rgba(255,255,255,.035) 0, rgba(255,255,255,.015) 35%, rgba(0,0,0,.05) 70%, rgba(0,0,0,.13) 100%);
}

.yukyu-story__video {
    position: absolute;
    z-index: 2;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    height: 100svh;
    overflow: hidden;
    transform: translate3d(-50%, -50%, 0);
    will-change: width, height, opacity, border-radius;
}

.yukyu-story__video video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.yukyu-story__video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .02);
    pointer-events: none;
}

.yukyu-story__titles {
    position: absolute;
    z-index: 3;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1% 6% 0;
    color: var(--color-font-light);
    pointer-events: none;
    will-change: opacity, transform;
}

.yukyu-story__title-group h1 {
    margin: 0 -35% 0 0;
    color: inherit;
    font-family: var(--font-family02);
    font-size: clamp(64px, 6.9vw, 120px);
    font-weight: 400;
    line-height: 1;
    letter-spacing: -.045em;
    transform: scaleX(.64);
    transform-origin: left center;
}

.yukyu-story__title-group p {
    margin: 2px 0 0;
    color: inherit;
    font-size: var(--font-size28);
    letter-spacing: .13em;
}

.yukyu-story__catch {
    margin: 0;
    color: inherit;
    font-family: var(--font-family02);
    font-size: clamp(34px, 3.7vw, 70px);
    font-weight: 400;
    line-height: 1.13;
    letter-spacing: -.025em;
    transform: scaleX(.79);
    transform-origin: right center;
}

.yukyu-story__copy {
    position: absolute;
    z-index: 3;
    top: 50%;
    left: 50%;
    width: min(88vw, 16000px);
    min-height: 6em;
    transform: translate(-50%, -50%);
    text-align: center;
    pointer-events: none;
}

.yukyu-story__sentence {
    position: absolute;
    inset: 50% 0 auto;
    margin: 0;
    color: var(--color-font-light);
    font-size: clamp(18px, 2.15vw, 38px);
    font-weight: 400;
    line-height: 1.85;
    letter-spacing: .12em;
    opacity: 0;
    transform: translateY(-50%);
    text-shadow: 0 2px 22px rgba(0, 0, 0, .72);
    will-change: opacity, transform, filter;
}

.yukyu-story__char {
    display: inline-block;
    white-space: pre;
    will-change: transform, opacity, filter;
}

.yukyu-story__blackout {
    z-index: 4;
    background: #000;
    opacity: 0;
    will-change: opacity;
}

@media (max-width: 700px) {
    .yukyu-story {
        height: 750svh;
    }

    .yukyu-story__background {
        width: max(100vw, 165svh);
        height: max(100vw, 165svh);
    }

    .yukyu-story__copy {
        width: 84vw;
        min-height: 10em;
    }

    .yukyu-story__titles {
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 36px;
        padding: 0 7%;
    }

    .yukyu-story__title-group h1 { font-size: 76px; }
    .yukyu-story__catch {
        align-self: flex-end;
        /* font-size: clamp(36px, 11vw, 54px); */
    }

    .yukyu-story__sentence {
        font-size: clamp(16px, 4.5vw, 23px);
        line-height: 2;
        letter-spacing: .08em;
    }
}

@media (prefers-reduced-motion: reduce) {
    .yukyu-story__char {
        transform: none !important;
        filter: none !important;
    }
}