:root {
      --paper: #ffffff;
      --paper-deep: #eef3f5;
      --ink: #17233a;
      --blue: #2556d8;
      --red: #f15346;
      --yellow: #f3b52d;
      --green: #2c7a56;
      --line: rgba(23, 35, 58, .17);
      --mono: "DM Mono", monospace;
      --sans: "Zen Kaku Gothic New", sans-serif;
      --round: "Zen Maru Gothic", sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; overflow-x: hidden; }
    body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); overflow-x: hidden; }
    a { color: inherit; text-decoration: none; }
    button { font: inherit; }
    img { display: block; max-width: 100%; }
    ::selection { background: var(--yellow); color: var(--ink); }

    .shell { width: min(1320px, calc(100% - 64px)); margin: 0 auto; }
    .eyebrow { margin: 0; font: 500 11px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
    .eyebrow::before { content: "●"; color: var(--red); margin-right: 9px; }
    /* ドットの色をセクションの意味で使い分ける: 赤=プログラム本体、青=発見・探索、緑=安心・保護者向け */
    .eyebrow--discover::before { color: var(--blue); }
    .eyebrow--care::before { color: var(--green); }
    .display { font-family: var(--round); font-weight: 900; letter-spacing: -.075em; line-height: .97; }
    .reveal { opacity: 0; transform: translateY(28px); transition: opacity .75s ease, transform .75s cubic-bezier(.22,.8,.2,1); }
    .reveal.in { opacity: 1; transform: none; }

    .header { position: absolute; inset: 0 0 auto; z-index: 20; padding: 26px 0; }
    .nav { display: flex; justify-content: space-between; align-items: center; }
    .wordmark { font: 900 18px/1 var(--round); letter-spacing: -.06em; }
    .wordmark span { display: inline-block; width: 11px; height: 11px; margin: 0 2px 0 5px; border-radius: 50%; background: var(--red); box-shadow: 12px -4px 0 -2px var(--yellow), 22px 2px 0 -3px var(--blue); }
    .nav-link { border-bottom: 1px solid var(--ink); padding: 4px 0; font: 500 11px/1.1 var(--mono); letter-spacing: .04em; }

    .hero { min-height: 780px; position: relative; display: grid; align-items: center; padding: 132px 0 68px; overflow: hidden; }
    .hero-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: clamp(24px, 4vw, 66px); align-items: center; position: relative; z-index: 2; }
    .hero-copy { padding: 38px 0 18px; }
    .hero-copy h1 { font-size: clamp(46px, 5.2vw, 76px); letter-spacing: -.045em; line-height: 1.13; margin: 22px 0 24px; max-width: 8.5em; }
    .hero-copy h1 em { color: var(--red); font-style: normal; display: block; }
    .hero-copy p:not(.eyebrow) { max-width: 26em; margin: 0 0 31px; line-height: 2; font-weight: 500; font-size: 15px; }
    .hero-actions { display: flex; align-items: center; gap: 23px; }
    .button { display: inline-flex; align-items: center; gap: 16px; background: var(--ink); color: white; padding: 17px 21px 17px 24px; font-weight: 700; font-size: 14px; border: none; cursor: pointer; text-decoration: none; transition: background .25s, transform .25s; }
    .button::after { content: "↗"; width: 25px; height: 25px; display: grid; place-items: center; background: var(--yellow); color: var(--ink); font: 500 16px/1 var(--mono); }
    .button:hover { background: var(--blue); transform: translateY(-3px); }
    .hero-note { font: 500 10px/1.6 var(--mono); letter-spacing: .04em; }

    .hero-visual { position: relative; min-height: 555px; }
    .hero-visual::before { content: ""; position: absolute; width: 78%; height: 77%; top: 8%; right: 0; background: #e9f1ff; transform: rotate(3deg); }
    .hero-visual::after { content: "PLAY / MAKE / WANDER"; position: absolute; bottom: 3%; left: 2%; color: var(--blue); writing-mode: vertical-rl; font: 500 10px/1 var(--mono); letter-spacing: .14em; }
    .hero-photo { position: absolute; z-index: 1; inset: 51px 8% 38px 4%; overflow: hidden; background: var(--green); clip-path: polygon(3% 6%, 93% 0, 100% 16%, 96% 94%, 10% 100%, 0 82%); }
    .hero-photo > .photo { position: absolute; inset: 0; }
    .hero-photo img, .photo img { width: 100%; height: 100%; object-fit: cover; }
    .hero-video { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
    @media (prefers-reduced-motion: reduce) { .hero-video { display: none; } }
    .photo .missing, .hero-photo .missing { display: grid; place-items: center; position: absolute; inset: 0; color: rgba(255,255,255,.85); background: linear-gradient(135deg, #2c7a56 0 48%, #2556d8 48% 100%); font: 500 11px var(--mono); letter-spacing: .13em; }
    .hero-photo .missing { background: linear-gradient(135deg, #2c7a56 0 44%, #f3b52d 44% 52%, #2556d8 52% 100%); }
    .hero-collage { position: absolute; z-index: 3; width: min(50%, 350px); right: -3%; top: -4%; filter: drop-shadow(0 14px 19px rgba(23,35,58,.12)); transform: rotate(4deg); }

    /* isolation:isolate でスタッキングコンテキストを確定させ、marks-manifesto の z-index:-1 が
       このセクション内だけで有効になるようにする（無指定だと祖先の文脈に漏れて背面の別セクションの下に隠れてしまう） */
    .manifesto { padding: 142px 0 154px; position: relative; overflow: hidden; background: #fbfcff; isolation: isolate; }
    .manifesto::before { content: ""; position: absolute; width: 44vw; height: 44vw; right: -19vw; top: -10vw; border-radius: 50%; background: #fff1ce; }
    .manifesto-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1.28fr; gap: 8%; align-items: start; }
    .manifesto h2 { font-size: clamp(43px, 5.4vw, 82px); margin: 18px 0 0; }
    .manifesto h2 .blue { color: var(--blue); }
    .manifesto p { margin: 42px 0 0; max-width: 33em; font-size: 17px; line-height: 2.15; font-weight: 500; }
    .manifesto-mark { margin-top: 55px; width: 132px; height: 35px; background: var(--red); transform: rotate(-4deg); }
    /* 紙吹雪風の装飾から、実際にみつかるもの（葉・どんぐり・羽根）のクラスターへ差し替え。
       絶対配置でセクション全体に対して位置指定すると、1列積みで見出しとの間に不自然な空白が
       できたり写真キャプションと重なったりしたため、見出し直下の通常フローに置く（bleedは負のmarginで表現）。
       中の discovery-icon だけ絶対配置でクラスター内に散らす */
    .marks-manifesto { position: relative; width: clamp(150px, 22vw, 240px); height: clamp(112px, 16vw, 176px); margin: 14px 0 -6px -34px; opacity: .88; }
    .discovery-icon {
      position: absolute;
      width: 48%;
      aspect-ratio: 1;
      background-image: url("images/nijiiro-discovery-icons.png");
      background-size: 300% 200%;
      background-repeat: no-repeat;
      filter: drop-shadow(0 6px 10px rgba(23,35,58,.14));
    }
    .discovery-icon--leaf { top: 2%; left: 6%; background-position: 0% 0%; transform: rotate(-12deg); animation: iconDrift 7s ease-in-out infinite; }
    .discovery-icon--acorn { top: 18%; left: 46%; background-position: 50% 0%; transform: rotate(9deg) scale(.92); animation: iconDrift 8.5s ease-in-out .6s infinite; }
    .discovery-icon--feather { top: 54%; left: 16%; background-position: 0% 100%; transform: rotate(20deg) scale(.8); animation: iconDrift 6.4s ease-in-out 1.3s infinite; }
    @keyframes iconDrift {
      0%, 100% { translate: 0 0; rotate: 0deg; }
      50% { translate: 0 -7px; rotate: 3deg; }
    }
    /* 手元の寄りを見出しの下に置き、中景一辺倒のリズムを崩す */
    .manifesto-photo { margin-top: 44px; width: min(100%, 360px); }
    .manifesto-photo .photo { position: relative; display: block; width: 100%; aspect-ratio: 2/3; clip-path: polygon(0 2%,97% 0,100% 98%,3% 100%); }
    .manifesto-photo-cap { display: block; margin-top: 14px; font: 500 12px/1.8 var(--mono); letter-spacing: .02em; color: var(--blue); }

    /* 森へ入る引きカット：体験セクションの手前に置く全幅ブリード */
    .trailhead { position: relative; min-height: min(78svh, 660px); display: grid; align-items: end; overflow: hidden; isolation: isolate; }
    .trailhead-media { position: absolute; inset: 0; z-index: -1; }
    .trailhead-media .photo { position: absolute; inset: 0; }
    .trailhead-veil { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(23,35,58,.34) 0%, transparent 34%, rgba(23,35,58,.22) 58%, rgba(23,35,58,.82) 100%); }
    .trailhead-copy { position: relative; z-index: 1; padding: 0 0 clamp(40px, 6vw, 76px); color: #fff; }
    .trailhead-copy .eyebrow { color: #ffd9a0; }
    .trailhead-line { margin: 14px 0 0; font: 700 clamp(28px, 4vw, 54px)/1.34 var(--round); letter-spacing: -.03em; text-shadow: 0 2px 22px rgba(12,20,34,.6); }

    .experience { padding: 130px 0 145px; position: relative; overflow: hidden; }
    .experience-top { display: flex; justify-content: space-between; align-items: end; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
    .experience-top h2 { font-size: clamp(42px, 5.5vw, 76px); margin: 12px 0 0; }
    .experience-top p { max-width: 25em; margin: 0; font-size: 14px; line-height: 1.9; }
    /* 写真と説明を1枚のカードにまとめ、通し番号の重複と対応の切れを解消する */
    .experience-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 34px 22px; padding-top: 26px; position: relative; z-index: 1; }
    .experience-card { --accent: var(--blue); display: grid; grid-template-rows: auto auto; gap: 18px; margin: 0; }
    .experience-card:first-child { grid-row: span 2; grid-template-rows: 1fr auto; }
    .experience-card:nth-child(2) { --accent: var(--red); }
    .experience-card:nth-child(3) { --accent: var(--green); }
    .experience-photo { position: relative; overflow: hidden; min-height: 330px; background: var(--accent); }
    .experience-card:first-child .experience-photo { clip-path: polygon(0 0,100% 5%,94% 100%,6% 94%); min-height: 100%; }
    .experience-card:nth-child(2) .experience-photo { clip-path: polygon(7% 0,100% 0,94% 100%,0 93%); }
    .experience-card:nth-child(3) .experience-photo { clip-path: polygon(0 8%,92% 0,100% 92%,8% 100%); }
    .experience-photo .photo { position: absolute; inset: 0; }
    .experience-body { padding-top: 15px; border-top: 5px solid var(--accent); }
    .experience-body b { display: block; font: 500 11px var(--mono); letter-spacing: .08em; color: var(--accent); }
    .experience-body h3 { margin: 16px 0 10px; font: 900 24px/1.25 var(--round); letter-spacing: -.05em; }
    .experience-body p { margin: 0; font-size: 13px; line-height: 1.9; max-width: 30em; }
    .shapes-experience { position: absolute; z-index: 0; width: min(1120px, 90vw); left: 50%; bottom: 56px; transform: translateX(-50%) rotate(-2deg); opacity: .25; pointer-events: none; }

    .journey { background: var(--ink); color: var(--paper); padding: 135px 0 142px; overflow: hidden; }
    .journey-head { display: grid; grid-template-columns: .8fr 1.2fr; gap: 8%; align-items: end; }
    .journey h2 { font-size: clamp(47px, 6.2vw, 94px); margin: 16px 0 0; }
    .journey h2 em { color: var(--yellow); font-style: normal; }
    .journey-head p { margin: 0; line-height: 2; font-size: 15px; max-width: 30em; }
    .journey-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 75px; }
    .journey-step { padding: 0 25px 0 0; position: relative; }
    .journey-step + .journey-step { padding-left: 25px; border-left: 1px solid rgba(246,241,230,.28); }
    .journey-step .number { color: var(--yellow); font: 500 12px var(--mono); }
    .journey-step h3 { margin: 28px 0 14px; font: 900 28px/1.22 var(--round); letter-spacing: -.05em; }
    .journey-step p { margin: 0; color: rgba(246,241,230,.77); line-height: 1.95; font-size: 13px; }
    .journey-word { margin: 74px 0 -181px; white-space: nowrap; color: rgba(246,241,230,.08); font: 900 clamp(120px, 18vw, 250px)/1 var(--round); letter-spacing: -.1em; }

    .guardian { padding: 135px 0; }
    .guardian-grid { display: grid; grid-template-columns: .84fr 1.16fr; gap: 9%; }
    .guardian h2 { font-size: clamp(44px, 5.3vw, 74px); margin: 16px 0 0; }
    .guardian-list { border-top: 1px solid var(--ink); }
    .guardian-row { display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); }
    /* プレーンな赤文字ラベルをやめ、マニフェストの養生テープと同じ語彙のミニ付箋にする。
       3色を巡回させ、THREE WAYS TO PLAYのカード配色（青→赤→緑）と呼応させる */
    .guardian-row b { display: inline-block; align-self: start; width: fit-content; margin-top: 2px; padding: 4px 8px; font: 700 10px var(--mono); letter-spacing: .03em; color: #fff; background: var(--blue); transform: rotate(-3deg); box-shadow: 0 2px 5px rgba(23,35,58,.12); }
    .guardian-row:nth-child(2) b { background: var(--red); transform: rotate(2deg); }
    .guardian-row:nth-child(3) b { background: var(--green); transform: rotate(-2deg); }
    .guardian-row h3 { margin: 0 0 9px; font: 900 21px/1.35 var(--round); letter-spacing: -.04em; }
    .guardian-row p { margin: 0; line-height: 1.9; font-size: 13px; }

    .final { padding: 0 0 60px; }
    .final-panel { background: #e8f0ff; padding: clamp(47px, 7vw, 95px); position: relative; overflow: hidden; min-height: 470px; display: grid; align-content: space-between; }
    .final-panel::after { content: "NEXT?"; position: absolute; right: -2.5vw; bottom: -6vw; color: var(--blue); font: 900 clamp(120px, 21vw, 310px)/.8 var(--round); letter-spacing: -.15em; }
    .final-tape { position: relative; z-index: 1; display: inline-block; width: fit-content; margin-bottom: 20px; padding: 5px 10px; font: 700 11px var(--mono); letter-spacing: .04em; color: #fff; background: var(--ink); transform: rotate(-2deg); box-shadow: 0 3px 7px rgba(23,35,58,.16); }
    .final-panel h2 { position: relative; z-index: 1; max-width: 8em; font-size: clamp(48px, 6.8vw, 96px); margin: 0; }
    .final-bottom { position: relative; z-index: 1; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
    .final-bottom p { max-width: 23em; line-height: 1.9; font-size: 14px; margin: 0; }
    .final .button { background: var(--ink); flex-shrink: 0; }

    .footer { padding: 19px 0 38px; display: flex; justify-content: space-between; font: 500 10px var(--mono); letter-spacing: .04em; }

    /* Composition reset: compact editorial layout, not oversized display type. */
    .display { font-family: var(--round); font-weight: 700; letter-spacing: -.015em; line-height: 1.34; }
    .reveal, .reveal.in { opacity: 1; transform: none; transition: none; }
    .shell { width: min(1040px, calc(100% - 56px)); }
    .eyebrow { font-size: 12px; letter-spacing: .07em; }
    .nav-link { font-size: 12px; }
    .hero { min-height: 630px; padding: 108px 0 56px; }
    .hero-grid { grid-template-columns: .94fr 1.06fr; gap: clamp(28px, 3.4vw, 54px); }
    .hero-copy { padding: 0; }
    .hero-copy h1 { font-size: clamp(38px, 3.7vw, 56px); line-height: 1.3; letter-spacing: -.03em; margin: 17px 0 17px; max-width: 9em; }
    .hero-copy h1 em { display: inline; }
    .hero-copy p:not(.eyebrow) { max-width: 30em; margin-bottom: 22px; font-size: 14px; line-height: 1.95; }
    .button { padding: 14px 17px 14px 19px; font-size: 12px; }
    .button::after { width: 21px; height: 21px; font-size: 13px; }
    .hero-note { font-size: 10px; }
    .hero-visual { min-height: 410px; }
    .hero-visual::before { width: 91%; height: 71%; top: 13%; right: -2%; background: #eaf1ff; transform: rotate(1.5deg); }
    .hero-photo { inset: 25px 6% 22px 5%; clip-path: polygon(2% 4%, 96% 0, 100% 15%, 97% 96%, 5% 100%, 0 87%); }
    .hero-collage { width: min(39%, 255px); left: -6%; right: auto; top: auto; bottom: -8%; transform: rotate(-6deg); filter: drop-shadow(0 10px 16px rgba(23,35,58,.13)); }
    .hero-visual::after { bottom: 0; left: -1%; font-size: 8px; }

    .manifesto { padding: 76px 0 80px; background: #fff6f7; }
    .manifesto-photo { margin-top: 26px; width: min(100%, 260px); }
    .manifesto-photo-cap { margin-top: 12px; font-size: 11.5px; }
    .trailhead { min-height: min(62svh, 460px); }
    .manifesto::before { width: 28vw; height: 28vw; right: -13vw; top: -9vw; background: #ffe1a4; }
    .manifesto-inner { grid-template-columns: .82fr 1.18fr; gap: 9%; }
    .manifesto h2 { font-size: clamp(30px, 3.2vw, 46px); line-height: 1.42; margin-top: 12px; }
    .manifesto p { margin-top: 21px; font-size: 15px; line-height: 2; }
    .manifesto-mark { width: 74px; height: 10px; margin-top: 25px; }

    .experience { padding: 82px 0 78px; }
    .experience-top { padding-bottom: 16px; }
    .experience-top h2 { font-size: clamp(30px, 3.2vw, 46px); line-height: 1.4; margin-top: 9px; }
    .experience-top p { font-size: 14px; line-height: 1.85; }
    .experience-grid { gap: 28px 18px; padding-top: 18px; }
    .experience-card { gap: 14px; }
    .experience-photo { min-height: 268px; }
    .experience-body { border-top-width: 3px; padding-top: 11px; }
    .experience-body h3 { margin: 10px 0 7px; font-size: 20px; }
    .experience-body p { font-size: 13px; line-height: 1.8; }
    .shapes-experience { width: min(840px, 82vw); bottom: -2px; opacity: .18; }

    .journey { background: #eef5ff; color: var(--ink); padding: 78px 0 71px; }
    .journey-head { grid-template-columns: .82fr 1.18fr; gap: 9%; }
    .journey h2 { font-size: clamp(30px, 3.2vw, 46px); line-height: 1.42; margin-top: 11px; }
    .journey h2 em, .journey-step .number { color: var(--blue); }
    .journey-head p { font-size: 14px; line-height: 1.9; }
    .journey-track { margin-top: 41px; }
    .journey-step { padding-right: 18px; }
    .journey-step + .journey-step { padding-left: 18px; border-color: rgba(23,35,58,.2); }
    .journey-step h3 { margin: 15px 0 8px; font-size: 20px; line-height: 1.32; }
    .journey-step p { color: rgba(23,35,58,.8); font-size: 13px; line-height: 1.8; }
    .journey-word { display: none; }

    .field-map { padding: 71px 0 76px; background: #f4fff1; overflow: hidden; }
    .field-map-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 20px; }
    .field-map h2 { margin: 10px 0 0; font-size: clamp(30px, 3.2vw, 46px); }
    .field-map-head p { max-width: 29em; margin: 0; font-size: 14px; line-height: 1.85; }
    .field-map-image { display: block; width: min(900px, 100%); max-height: 405px; margin: 0 auto; object-fit: contain; object-position: center; }
    .journey-layout { display: grid; grid-template-columns: minmax(220px, .63fr) 1.37fr; gap: clamp(30px, 6vw, 84px); align-items: center; margin-top: 36px; }
    .day-route { display: block; width: min(100%, 270px); max-height: 380px; margin: 0 auto; object-fit: contain; }
    .journey-track { grid-template-columns: 1fr; gap: 0; margin: 0; }
    .journey-step, .journey-step + .journey-step { padding: 16px 0; border-left: 0; border-bottom: 1px solid rgba(23,35,58,.2); }
    .journey-step h3 { margin: 7px 0 4px; font-size: 18px; }

    .access { padding: 73px 0; background: #fffaf0; }
    .access-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 22px; }
    .access h2 { margin: 10px 0 0; font-size: clamp(30px, 3.2vw, 46px); }
    .access-head p { max-width: 29em; margin: 0; font-size: 14px; line-height: 1.85; }
    .access-map { display: block; width: min(900px, 100%); margin: 0 auto; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .access-details { display: grid; grid-template-columns: 1fr 1fr auto; gap: 23px; align-items: center; padding: 18px 0 0; }
    .access-details div { font-size: 13px; line-height: 1.8; }
    .access-details b { display: block; margin-bottom: 4px; font: 500 10px var(--mono); color: var(--red); letter-spacing: .08em; }
    .map-button { display: inline-flex; align-items: center; gap: 9px; padding-bottom: 4px; border-bottom: 1px solid var(--ink); font: 500 11px var(--mono); white-space: nowrap; }

    .guardian { padding: 77px 0; }
    .guardian h2 { font-size: clamp(30px, 3.2vw, 46px); line-height: 1.42; margin-top: 12px; }
    .guardian-row { padding: 18px 0; grid-template-columns: 56px 1fr; }
    .guardian-row h3 { font-size: 17px; margin-bottom: 5px; }
    .guardian-row p { font-size: 13px; line-height: 1.8; }
    .final { padding-bottom: 30px; }
    .final-panel { min-height: 300px; background: #ffd9dc; padding: clamp(32px, 5vw, 64px); }
    .final-panel::after { color: rgba(37,86,216,.18); font-size: clamp(100px, 15vw, 210px); bottom: -4vw; }
    .final-panel h2 { font-size: clamp(32px, 3.8vw, 53px); line-height: 1.38; }
    .final-bottom p { font-size: 13px; line-height: 1.8; }

    /* 90-point visual pass: stronger hierarchy, maps as protagonists, restrained motion. */
    .eyebrow { font-size: 12.5px; letter-spacing: .08em; }
    .hero-copy p:not(.eyebrow), .manifesto p, .experience-top p,
    .journey-head p, .field-map-head p, .access-head p { font-size: 15px; }
    .hero-note { font-size: 10.5px; letter-spacing: .06em; }
    .hero-photo { box-shadow: 0 17px 32px rgba(23,35,58,.12); }
    .hero-visual::before { background: #e8f1ff; }
    .hero-collage { width: min(43%, 290px); bottom: -10%; }

    /* ヒーロー動画を大きく見せる: .shell の1040px上限はテキストの可読性のためには適切だが、
       PCでは動画側にとって窮屈すぎる（実測 約470×363px、ワイドモニターでも変わらず）。
       ヒーローだけ専用の広いshellとカラム比率・高さを与え、動画に十分な面積を確保する。
       モバイル（767px以下）は現状のサイズ感のままで問題ないとのフィードバック済みのため対象外。 */
    @media (min-width: 761px) {
      .hero .shell.hero-grid { width: min(1500px, calc(100% - 64px)); }
      .hero-grid { grid-template-columns: .58fr 1.42fr; }
      .hero-visual { min-height: 660px; }
    }

    .manifesto-mark { width: 94px; height: 12px; }
    .experience-body p, .journey-step p, .guardian-row p { font-size: 13.5px; }

    .field-map { padding-bottom: 54px; }
    .field-map-image { width: 118%; max-width: none; margin: 2px 0 -17px -9%; transform: scale(1.03); transform-origin: center; }
    .journey-layout { grid-template-columns: minmax(245px, .72fr) 1.28fr; }
    .day-route { width: min(100%, 305px); max-height: 420px; }
    .journey-step { padding: 18px 0; }
    .journey-step h3 { font-size: 20px; }

    .guardian-list { position: relative; padding: 8px 24px; background: #fff9eb; }
    .guardian-list::before { content: ""; position: absolute; top: -8px; left: 28px; width: 76px; height: 16px; background: var(--yellow); transform: rotate(-2deg); }
    .guardian-row { grid-template-columns: 70px 1fr; }
    .guardian-row b { font-size: 11px; }
    .access { overflow: hidden; }
    .access-map { width: 110%; max-width: none; margin: -1% 0 0 -5%; transform: none; transform-origin: center; }
    .access-details {
      width: 110%;
      min-height: 104px;
      margin: 0 0 0 -5%;
      padding: 24px 30px;
      background: #fff;
      border-top: 3px solid var(--yellow);
    }
    .access-details div { font-size: 14px; }
    .footer { font-size: 11px; }

    @keyframes copyIn { from { opacity: 0; transform: translateY(13px); } to { opacity: 1; transform: none; } }
    @keyframes photoIn { from { clip-path: polygon(2% 4%, 2% 0, 2% 15%, 2% 96%, 2% 100%, 0 87%); } to { clip-path: polygon(2% 4%, 96% 0, 100% 15%, 97% 96%, 5% 100%, 0 87%); } }
    @keyframes collageIn { from { opacity: 0; transform: translate(-16px, 12px) rotate(-13deg) scale(.88); } to { opacity: 1; transform: rotate(-6deg) scale(1); } }
    @keyframes mapLift { from { opacity: .35; transform: translateY(18px) scale(.97); } to { opacity: 1; transform: translateY(0) scale(1); } }
    .motion .hero-copy { animation: copyIn .7s .12s both cubic-bezier(.22,.8,.2,1); }
    .motion .hero-photo { animation: photoIn .9s .18s both cubic-bezier(.22,.8,.2,1); }
    .motion .hero-collage { animation: collageIn .75s .46s both cubic-bezier(.22,.8,.2,1); }
    .field-map-image.in, .access-map.in { animation: mapLift .72s cubic-bezier(.22,.8,.2,1) both; }
    .journey-layout.in .day-route { animation: mapLift .72s .08s cubic-bezier(.22,.8,.2,1) both; }

    /* Let the labels sit outside the irregular photo masks. */
    .experience-photo { clip-path: none !important; overflow: visible; }
    .experience-photo .photo { overflow: hidden; }
    .experience-card:first-child .experience-photo .photo { clip-path: polygon(0 0,100% 5%,94% 100%,6% 94%); }
    .experience-card:nth-child(2) .experience-photo .photo { clip-path: polygon(7% 0,100% 0,94% 100%,0 93%); }
    .experience-card:nth-child(3) .experience-photo .photo { clip-path: polygon(0 8%,92% 0,100% 92%,8% 100%); }

    /* Final polish: editorial depth, legibility, and restrained interaction. */
    .motion .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity .72s ease, transform .82s cubic-bezier(.22,.8,.2,1);
    }
    .motion .reveal.in { opacity: 1; transform: none; }
    .motion .hero-copy.reveal,
    .motion .hero-visual.reveal { opacity: 1; transform: none; }

    .hero-photo img { transform: scale(1.015); transition: transform 1.1s cubic-bezier(.22,.8,.2,1), filter .8s ease; }
    .hero-visual:hover .hero-photo img { transform: scale(1.045); filter: saturate(1.04); }
    .hero-collage { transition: transform .7s cubic-bezier(.22,.8,.2,1), filter .7s ease; }
    .hero-visual:hover .hero-collage { transform: translate(-5px, -4px) rotate(-8deg) scale(1.025); filter: drop-shadow(0 17px 22px rgba(23,35,58,.16)); }

    .experience-photo .photo img { transition: transform .8s cubic-bezier(.22,.8,.2,1), filter .8s ease; }
    .experience-photo:hover .photo img { transform: scale(1.035); filter: saturate(1.04); }

    .field-map-image, .access-map, .day-route { filter: drop-shadow(0 16px 22px rgba(23,35,58,.07)); }
    .access-details { box-shadow: 0 12px 30px rgba(23,35,58,.055); }
    .map-button { font-size: 12px; transition: color .25s, border-color .25s, transform .25s; }
    .map-button:hover { color: var(--blue); border-color: var(--blue); transform: translateX(3px); }

    .button { position: relative; isolation: isolate; box-shadow: 0 8px 0 rgba(23,35,58,.08); }
    .button::before { content: ""; position: absolute; inset: -5px; z-index: -1; border: 1px solid transparent; transition: border-color .25s, transform .25s; }
    .button:hover::before { border-color: rgba(37,86,216,.32); transform: translate(3px, 3px); }
    .final .button { box-shadow: 7px 7px 0 rgba(37,86,216,.18); }
    .final-panel { box-shadow: inset 0 0 0 1px rgba(23,35,58,.045); }

    @media (max-width: 760px) {
      .shell { width: min(100% - 40px, 620px); }
      .header { padding: 18px 0; }
      .nav-link { font-size: 10px; }
      .hero { min-height: auto; padding: 113px 0 47px; }
      .hero-grid, .manifesto-inner, .journey-head, .guardian-grid { grid-template-columns: 1fr; }
      .hero-copy { order: 2; padding: 30px 0 0; }
      .hero-copy h1 { font-size: clamp(49px, 15vw, 72px); max-width: 7em; margin: 17px 0 19px; }
      .hero-copy p:not(.eyebrow) { font-size: 13px; line-height: 1.9; }
      /* モバイル動画は9:16の縦位置。従来の390pxだとほぼ正方形の枠になり object-fit:cover で
         縦方向が大きくクロップされていたため、縦動画の比率に近づけて大幅に高さを取る */
      .hero-visual { min-height: 620px; }
      .hero-photo { inset: 23px 1% 30px 4%; }
      .hero-collage { width: 50%; right: -5%; top: -2%; }
      .hero-actions { align-items: start; flex-direction: column; gap: 12px; }
      .manifesto, .guardian { padding: 91px 0; }
      .manifesto h2, .experience-top h2, .guardian h2 { margin-top: 14px; }
      .manifesto p { margin-top: 29px; font-size: 14px; }
      .experience { padding-bottom: 88px; }
      .experience-top { display: block; }
      .experience-top p { margin-top: 23px; font-size: 13px; }
      .experience-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; padding-top: 29px; }
      .experience-card, .experience-card:first-child { grid-row: auto; grid-template-rows: auto auto; }
      .experience-photo, .experience-card:first-child .experience-photo { min-height: 244px; }
      .experience-body h3 { margin: 12px 0 7px; }
      .journey { padding: 90px 0 96px; }
      .journey-head p { margin-top: 28px; font-size: 13px; }
      .journey-track { grid-template-columns: 1fr; margin-top: 48px; gap: 29px; }
      .journey-step, .journey-step + .journey-step { padding: 0 0 27px; border-left: 0; border-bottom: 1px solid rgba(246,241,230,.28); }
      .journey-word { display: none; }
      .field-map, .access { padding: 61px 0; }
      .field-map-head, .access-head { display: block; }
      .field-map-head p, .access-head p { margin-top: 18px; }
      .field-map-image { max-height: none; }
      .field-map-image { width: 100%; margin: 0; transform: none; }
      .journey-layout { grid-template-columns: 1fr; gap: 28px; margin-top: 28px; }
      .day-route { width: min(100%, 210px); max-height: 300px; }
      .access-details { grid-template-columns: 1fr; gap: 11px; }
      .access-map { width: 100%; margin: 0; transform: none; }
      .guardian-list { padding: 8px 16px; }
      .guardian-row { grid-template-columns: 58px 1fr; }

      /* Mobile type system: compact, rounded, and readable without oversized headlines. */
      .shell { width: min(100% - 36px, 620px); }
      .wordmark { font-size: 16px; }
      .nav-link { font-size: 11px; }
      .eyebrow { font-size: 10px; letter-spacing: .06em; }
      .hero { padding-top: 92px; }
      .hero-copy h1 { font-size: clamp(34px, 10vw, 42px); line-height: 1.42; letter-spacing: -.02em; margin: 14px 0 15px; }
      .hero-copy p:not(.eyebrow) { font-size: 14px; line-height: 1.85; }
      .hero-note { font-size: 9px; }
      .manifesto h2, .experience-top h2, .journey h2, .field-map h2, .guardian h2, .access h2 { font-size: 28px; line-height: 1.45; letter-spacing: -.01em; }
      .manifesto p, .experience-top p, .journey-head p, .field-map-head p, .access-head p { font-size: 14px; line-height: 1.9; }
      .experience-grid { gap: 30px; padding-top: 27px; }
      .experience-body h3 { font-size: 18px; }
      .experience-body p, .journey-step p, .guardian-row p, .access-details div { font-size: 13px; line-height: 1.85; }
      .journey-step h3, .guardian-row h3 { font-size: 18px; line-height: 1.4; }
      .guardian-grid { gap: 42px; }
      .final { padding-bottom: 21px; }
      .final-panel { min-height: 475px; }
      .final-bottom { align-items: start; flex-direction: column; }
      .footer { display: block; line-height: 2; }

      /* Mobile finish: readable details and larger illustrated maps. */
      .hero-note { font-size: 10px; line-height: 1.65; }
      .button { min-height: 48px; font-size: 13px; padding: 13px 16px 13px 19px; }
      .experience-body p, .journey-step p, .guardian-row p, .access-details div {
        font-size: 14px;
        line-height: 1.82;
      }
      .experience-body b, .journey-step .number, .guardian-row b { font-size: 10.5px; }
      .field-map, .access { padding-top: 68px; padding-bottom: 68px; }
      .field-map-image {
        width: calc(100% + 54px);
        max-width: none;
        margin: 10px 0 0 -27px;
        padding: 10px 0;
        filter: drop-shadow(0 13px 17px rgba(23,35,58,.08));
      }
      .access-map {
        width: calc(100% + 44px);
        max-width: none;
        margin: 4px 0 0 -22px;
        border: 0;
        filter: drop-shadow(0 13px 17px rgba(23,35,58,.08));
      }
      .access-details {
        width: auto;
        margin-top: 18px;
        margin-left: 0;
        padding: 20px;
        gap: 14px;
        border-top: 3px solid var(--yellow);
      }
      .access-details b { font-size: 10.5px; }
      .map-button { width: fit-content; min-height: 40px; align-items: center; font-size: 12.5px; }
      .guardian-list { padding: 10px 17px; }
      .final-panel { min-height: 450px; }
      .final-bottom { gap: 22px; }
      .final .button { width: 100%; justify-content: space-between; }

      .hero-visual:hover .hero-photo img { transform: scale(1.015); filter: none; }
      .hero-visual:hover .hero-collage { transform: rotate(-6deg); filter: drop-shadow(0 10px 16px rgba(23,35,58,.13)); }
      .experience-photo:hover .photo img { transform: none; filter: none; }
      .motion .reveal { transform: translateY(13px); transition-duration: .62s, .7s; }
    }

    /* 申し込み導線インフォメーション・モーダル */
    .program-modal { position: fixed; inset: 0; margin: auto; width: min(92vw, 520px); max-height: min(88vh, 600px); padding: 0; border: none; background: #fff; box-shadow: 0 40px 100px -30px rgba(23,35,58,.4); overflow: auto; }
    .program-modal::backdrop { background: rgba(23,35,58,.55); backdrop-filter: blur(6px); }
    .program-modal[open] { animation: programModalIn .5s cubic-bezier(.16,1,.3,1); }
    @keyframes programModalIn { from { opacity: 0; transform: translateY(18px) scale(.98); } to { opacity: 1; transform: none; } }
    .program-modal-shell { position: relative; padding: 52px 34px 40px; text-align: center; }
    .program-modal-close { position: absolute; right: 14px; top: 14px; width: 34px; height: 34px; border: none; background: transparent; color: var(--ink); font-size: 20px; line-height: 1; cursor: pointer; }
    .program-modal-tape { display: inline-block; width: fit-content; margin-bottom: 18px; padding: 5px 10px; font: 700 11px var(--mono); letter-spacing: .04em; color: #fff; background: var(--blue); transform: rotate(-2deg); box-shadow: 0 3px 7px rgba(23,35,58,.16); }
    .program-modal-title { margin: 0 0 14px; font-family: var(--round); font-weight: 700; font-size: 22px; line-height: 1.6; letter-spacing: -.015em; color: var(--ink); }
    .program-modal-copy { margin: 0 auto; max-width: 30em; font: 500 13px/1.9 inherit; color: var(--ink); opacity: .7; }
    .program-modal-action { margin-top: 26px; padding: 13px 26px; border: none; border-radius: 999px; background: var(--ink); color: #fff; font: 700 13px inherit; cursor: pointer; transition: background .25s, transform .25s; }
    .program-modal-action:hover { background: var(--blue); transform: translateY(-2px); }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
      .reveal { opacity: 1; transform: none; }
    }