/* debut is LP — エディトリアル案
   リポジトリ直下の「デザイン禁止ルール.md」に準拠：影・グロー・フチ・斜体・囲み線・飾り線・色帯・意味のないアイコン・装飾グラデを使わない。
   色の役割：paper＝地 / ink＝文字 / rose＝行動と強調のみ / night＝締めの面（オープニングと同じ夜空色） / blush＝まとまりを分ける面 */
:root{
  --paper:#fbf8f6;--blush:#f4ebf0;--ink:#261c2e;--muted:#675c70;--rose:#b8386f;--rose-dark:#982a5a;
  --night:#0b0e2e;--night-muted:#bdb6d0;--rule:#e6dbe2;
  --mincho:'Shippori Mincho B1','Noto Serif JP',serif;
  --sans:'Noto Sans JP',sans-serif;
  --latin:'Cormorant Garamond','Times New Roman',serif;
  --gutter:clamp(20px,5vw,72px);
  --max:1240px;
  --ease:cubic-bezier(.2,.65,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:400 15px/1.95 var(--sans);letter-spacing:.04em;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,dl,dd,ol,ul{margin:0;padding:0}
ol,ul{list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
section{scroll-margin-top:80px}
:focus-visible{outline:2px solid var(--rose);outline-offset:4px}
h1,h2,h3,p,dt,dd,summary{word-break:auto-phrase;text-wrap:pretty;line-break:strict}
h1,h2{text-wrap:balance}
.skip-link:not(:focus),.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link:focus{position:fixed;z-index:200;top:8px;left:8px;padding:10px 16px;background:#fff}
.note{font-size:12px;line-height:1.9;color:var(--muted)}

/* ---- ボタン：行動は1色 ---- */
.button{
  display:inline-flex;align-items:center;justify-content:center;min-height:56px;min-width:260px;padding:0 40px;
  border-radius:4px;background:var(--rose);color:#fff;font:700 15px/1 var(--sans);letter-spacing:.14em;text-decoration:none;
  transition:background .25s;
}
.button:hover{background:var(--rose-dark)}
.button-quiet{background:var(--blush);color:var(--ink)}
.button-quiet:hover{background:#eadfe6}
.line-button{background:#06C755}
.line-button:hover{background:#05a847}

/* ---- ヘッダー：地の色の面。ロゴはヒーローを過ぎてから出す ---- */
.header{
  position:fixed;z-index:50;top:0;left:0;right:0;height:72px;padding:0 var(--gutter);
  display:flex;align-items:center;gap:40px;background:var(--paper);
}
.header-logo{margin-right:auto;line-height:0;opacity:0;transform:translateY(-6px);transition:opacity .5s,transform .5s var(--ease);pointer-events:none}
.is-scrolled .header-logo{opacity:1;transform:none;pointer-events:auto}
.header-logo img{width:76px;height:57px;object-fit:contain}
.header-nav{display:flex;gap:32px;font-size:13px;font-weight:500}
.header-nav a{text-decoration:none;transition:color .2s}
.header-nav a:hover{color:var(--rose)}
.header-entry{padding:10px 22px;border-radius:4px;background:var(--rose);color:#fff;font-size:12px;font-weight:700;letter-spacing:.2em;transition:background .25s}
.header-entry:hover{background:var(--rose-dark)}
.menu-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;gap:7px;padding:0 10px}
.menu-toggle span{display:block;height:2px;background:var(--ink);transition:transform .3s}
.menu-toggle[aria-expanded="true"] span:first-child{transform:translateY(4.5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}
.mobile-menu{position:fixed;z-index:49;top:72px;left:0;right:0;padding:16px var(--gutter) 28px;background:var(--paper);display:flex;flex-direction:column}
.mobile-menu[hidden]{display:none}
.mobile-menu a{padding:12px 0;font:500 20px/1.6 var(--mincho);text-decoration:none}

/* ---- セクション共通 ---- */
main>section{padding:clamp(88px,11vw,160px) var(--gutter)}
main>section>*{max-width:var(--max);margin-left:auto;margin-right:auto}
.section-title{margin-bottom:clamp(40px,5vw,72px)}
.section-title h2,.experience h2,.after h2,.parents h2{font:700 clamp(28px,3vw,42px)/1.4 var(--mincho);letter-spacing:.06em}
.section-title p{margin-top:12px;font-size:14px;color:var(--muted)}
.section-title .sub{margin-top:4px}
.section-note{margin-top:40px}

/* ---- 01 HERO ---- */
.hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);min-height:100svh;padding:72px 0 0!important}
.hero>*{max-width:none!important;margin:0!important}
.hero-copy{padding:clamp(40px,6vw,96px) clamp(24px,4vw,56px) 56px var(--gutter);display:flex;flex-direction:column;align-items:flex-start}
.hero-logo{width:min(100%,300px);margin-left:-12px}
.hero-kicker{margin-top:28px;font:500 13px/1.9 var(--sans);letter-spacing:.16em;color:var(--muted)}
.hero-kicker br{display:none}
h1{margin-top:16px;font:700 clamp(34px,3.6vw,52px)/1.45 var(--mincho);letter-spacing:.06em}
h1 .line{display:block}
.hero-lead{margin-top:20px;font-size:15px;color:var(--muted)}
.hero-period{margin-top:48px}
.hero-period .label{font-size:12px;font-weight:700;letter-spacing:.24em;color:var(--rose)}
.hero-period .period{margin-top:4px;font:500 clamp(34px,3.6vw,48px)/1.2 var(--latin);letter-spacing:.02em;font-variant-numeric:lining-nums}
.hero-period .dash{margin:0 .4em;color:var(--muted)}
.hero-period .target{margin-top:6px;font-size:13px;color:var(--muted)}
.hero-action{margin-top:36px;display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.cta-sub{font:500 16px/1.6 var(--mincho);color:var(--ink)}
.hero-organizer{margin-top:auto;padding-top:48px;font-size:12px;color:var(--muted);letter-spacing:.12em}
.hero-photo{overflow:hidden;position:relative;min-height:560px}
.hero-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 25%}

/* ---- 02 ABOUT ---- */
.about{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);column-gap:clamp(32px,6vw,96px);align-items:start}
.about>*{max-width:none;margin:0}
.about{max-width:calc(var(--max) + var(--gutter)*2);margin:0 auto}
.eyebrow{grid-column:1;font-size:12px;font-weight:700;letter-spacing:.24em;color:var(--rose)}
.statement{grid-column:1;margin-top:24px;font:700 clamp(48px,7.4vw,104px)/1.25 var(--mincho);letter-spacing:.04em}
.about-body{grid-column:1;margin-top:48px;max-width:30em;display:grid;gap:16px;font-size:15px}
.about-photo{grid-column:2;grid-row:1/span 3;aspect-ratio:4/5;overflow:hidden}
.about-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 10%}

/* ---- 03 OVERVIEW ---- */
.overview{background:#fff}
.overview{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:clamp(32px,6vw,96px)}
.overview>*{max-width:none;margin:0}
.overview{padding-left:max(var(--gutter),calc((100% - var(--max))/2))!important;padding-right:max(var(--gutter),calc((100% - var(--max))/2))!important}
.spec{display:grid;gap:0}
.spec>div{display:grid;grid-template-columns:11em minmax(0,1fr);gap:24px;padding:22px 0}
.spec>div+div{border-top:1px solid var(--rule)}
.spec dt{font:700 15px/1.9 var(--mincho);letter-spacing:.06em}
.spec dd{font-size:15px;overflow-wrap:anywhere}
.spec .note{display:block;margin-top:4px}

/* ---- 04 EXPERIENCE ---- */
.experience{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);column-gap:clamp(32px,5vw,72px);align-items:end;padding-left:0!important}
.experience>*{max-width:none;margin:0}
.experience-photo{aspect-ratio:1659/948;overflow:hidden}
.experience-photo img{width:100%;height:100%;object-fit:cover}
.experience-copy{padding-bottom:8px;max-width:22em}
.experience-copy p{margin-top:20px}

/* ---- 05 OPPORTUNITY：カードにせず、同じ型の一覧にそろえる ---- */
.partners{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:64px 40px}
.partner{display:flex;flex-direction:column}
.partner-no{font:500 28px/1 var(--latin);color:var(--muted)}
.partner-logo{height:84px;margin:20px 0 24px;display:flex;align-items:center;justify-content:flex-start}
.partner-logo img{max-width:100%;max-height:100%;object-fit:contain}
.partner-logo.is-dark{background:#111;justify-content:center;padding:10px 12px}
.partner .wordmark{margin:0;font:500 32px/1.2 var(--latin);letter-spacing:.02em;color:var(--ink)}
.partner h3{font:700 17px/1.6 var(--mincho);letter-spacing:.04em}
.partner p{margin-top:8px;font-size:13px;line-height:1.85;color:var(--muted)}
.partner .status{margin-top:12px;font-size:12px;font-weight:500;color:var(--ink)}

/* ---- 06 SCHEDULE：順番を示す線だけ残す ---- */
.schedule{background:var(--blush)}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:40px;position:relative}
.steps:before{content:'';position:absolute;top:36px;left:0;right:0;height:1px;background:var(--ink);opacity:.25}
.step{position:relative}
.step-no{display:inline-block;padding-right:16px;background:var(--blush);font:500 72px/1 var(--latin);color:var(--ink);position:relative}
.step-date{margin-top:24px;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--rose)}
.step h3{margin-top:6px;font:700 22px/1.5 var(--mincho);letter-spacing:.04em}
.step p:last-child{margin-top:12px;font-size:14px;color:var(--muted)}

/* ---- 07 CITIES ---- */
.city-list{display:flex;flex-wrap:wrap;gap:12px clamp(32px,6vw,96px);font:700 clamp(44px,7vw,96px)/1.2 var(--mincho);letter-spacing:.08em}
.city-date{margin-top:32px;font-size:16px}
.city-date span{margin-right:16px;font-size:12px;font-weight:700;letter-spacing:.24em;color:var(--rose)}

/* ---- 08 AFTER ---- */
.after{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:clamp(32px,6vw,96px);align-items:center;padding-top:0!important}
.after>*{max-width:none;margin:0}
.after{max-width:calc(var(--max) + var(--gutter)*2);margin:0 auto}
.after-photo{aspect-ratio:4/5;overflow:hidden}
.after-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 15%}
.after-copy p{margin-top:20px;max-width:26em}
.action{margin-top:40px;display:flex;flex-direction:column;align-items:flex-start;gap:12px}

/* ---- 09 FAQ ---- */
.faq{background:#fff;display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:clamp(32px,6vw,96px);align-items:start}
.faq>*{max-width:none;margin:0}
.faq{padding-left:max(var(--gutter),calc((100% - var(--max))/2))!important;padding-right:max(var(--gutter),calc((100% - var(--max))/2))!important}
.faq-title{position:sticky;top:120px}
.faq-list details+details{border-top:1px solid var(--rule)}
.faq-list summary{
  display:flex;justify-content:space-between;align-items:baseline;gap:24px;padding:22px 0;cursor:pointer;list-style:none;
  font:700 16px/1.7 var(--mincho);letter-spacing:.04em;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:'+';flex:0 0 auto;font:400 22px/1 var(--sans);color:var(--rose);transition:transform .3s var(--ease)}
.faq-list details[open] summary:after{transform:rotate(45deg)}
.faq-list details p{padding:0 48px 24px 0;font-size:14px;color:var(--muted)}

/* ---- 10 PARENTS ---- */
.parents{background:var(--blush);display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);column-gap:clamp(32px,6vw,96px)}
.parents>*{max-width:none;margin:0}
.parents{padding-left:max(var(--gutter),calc((100% - var(--max))/2))!important;padding-right:max(var(--gutter),calc((100% - var(--max))/2))!important}
.parents h2{font-size:clamp(24px,2.6vw,32px)}
.parents-body{display:grid;gap:16px;font-size:15px}
.privacy{grid-column:2;margin-top:32px}

/* ---- 11 FINAL：夜空色の面 ---- */
.final{background:var(--night);color:#fff;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);column-gap:clamp(32px,6vw,96px);align-items:center}
.final>*{max-width:none;margin:0}
.final{padding-left:max(var(--gutter),calc((100% - var(--max))/2))!important;padding-right:max(var(--gutter),calc((100% - var(--max))/2))!important}
.final h2{font:700 clamp(40px,5.6vw,76px)/1.35 var(--mincho);letter-spacing:.06em}
.final-copy>p{margin-top:32px;font-size:15px;color:#e9e4f2}
.final .note{color:var(--night-muted)}
.final .action{margin-top:40px}
.final-copy>.note{margin-top:28px}
.final-photo{aspect-ratio:4/5;overflow:hidden}
.final-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 10%}

/* ---- 追従CTA：夜空色の面で本文と分ける ---- */
.sticky-entry{position:fixed;z-index:40;left:0;right:0;bottom:0;padding:12px var(--gutter);display:flex;align-items:center;justify-content:center;gap:32px;background:var(--night);color:#fff;transition:transform .4s var(--ease)}
.sticky-entry[hidden]{display:flex;transform:translateY(110%);visibility:hidden;transition:transform .4s var(--ease),visibility 0s .4s}
.sticky-entry>div{display:flex;flex-direction:column;line-height:1.5}
.sticky-entry strong{font:500 20px/1.3 var(--latin);letter-spacing:.04em}
.sticky-entry span{font-size:12px;color:var(--night-muted)}
.sticky-entry .button{min-height:48px}

/* ---- ダイアログ ---- */
.notice{border:0;border-radius:8px;padding:40px;max-width:520px;width:calc(100% - 40px);max-height:calc(100svh - 32px);overflow:auto;color:var(--ink);background:var(--paper)}
.notice::backdrop{background:rgba(11,14,46,.6)}
.notice h2{font:700 24px/1.5 var(--mincho);margin-bottom:20px}
.notice p{margin-bottom:20px;font-size:14px}
.notice .button{width:100%;min-width:0}
.notice .note a{color:var(--rose)}
.notice .note{margin:16px 0 20px}

/* ---- オープニング（opening.js） ---- */
/* 夜空は半透明（opening.js）。後ろのLPを軽くぼかして、うっすら見せる */
.opening{position:fixed;inset:0;z-index:100;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);transition:opacity .9s ease}
.opening canvas{display:block;width:100%;height:100%}
.opening.is-leaving{opacity:0;pointer-events:none}
.opening-skip{
  position:absolute;right:16px;bottom:max(16px,env(safe-area-inset-bottom));padding:10px 20px;border-radius:999px;
  background:rgba(255,255,255,.16);color:#fff;font:500 13px/1 var(--sans);letter-spacing:.2em;
}
.opening-skip:hover{background:rgba(255,255,255,.28)}
html.opening-active{overflow:hidden}

/* ---- 動き ---- */
/* ヒーロー：オープニング後、見出しが1行ずつせり上がり、写真がゆっくり寄る */
.hero-await .hero-copy>*{opacity:0;transform:translateY(20px)}
.hero-await h1 .line{clip-path:inset(0 0 100% 0);transform:translateY(.5em)}
.hero-await .hero-photo img{transform:scale(1.08)}
.hero-await .hero-photo{opacity:0}
.hero-in .hero-copy>*{opacity:1;transform:none;transition:opacity 1s ease,transform 1s var(--ease)}
.hero-in h1{transition-delay:.1s}
.hero-in h1 .line{clip-path:inset(0);transform:none;transition:clip-path 1.1s var(--ease),transform 1.1s var(--ease)}
.hero-in h1 .line:nth-child(1){transition-delay:.25s}
.hero-in h1 .line:nth-child(2){transition-delay:.45s}
.hero-in .hero-copy>:nth-child(4){transition-delay:.6s}
.hero-in .hero-copy>:nth-child(5){transition-delay:.75s}
.hero-in .hero-copy>:nth-child(6){transition-delay:.9s}
.hero-in .hero-copy>:nth-child(7){transition-delay:1s}
.hero-in .hero-photo{opacity:1;transition:opacity 1.2s ease .2s}
.hero-in .hero-photo img{transform:none;transition:transform 2.8s var(--ease) .2s}
/* スクロール：文字はふわっと、写真は下から幕が上がるように */
.reveal{transition:opacity .9s ease,transform .9s var(--ease);transition-delay:var(--stagger,0s)}
.reveal.is-pending{opacity:0;transform:translateY(24px)}
/* 切り抜きは画像側にかける（枠に切り抜きをかけると画面内判定が効かないため） */
.reveal-image img{clip-path:inset(0);transition:clip-path 1.2s var(--ease),transform 1.6s var(--ease)}
.reveal-image.is-pending img{clip-path:inset(100% 0 0 0);transform:scale(1.12)}

/* 欧文の数字は旧式数字（Oのような0）にせず、ライニング数字で。font一括指定で消えないよう最後に置く */
.partner-no,.step-no,.hero-period .period,.sticky-entry strong{font-variant-numeric:lining-nums;font-feature-settings:'lnum' 1}

/* ---- タブレット ---- */
@media(max-width:1024px){
  .header-nav{gap:20px}
  .partners{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:56px}
  .steps:before{display:none}
}

/* ---- スマホ ---- */
@media(max-width:767px){
  body{font-size:14px}
  .header{height:60px;gap:12px}
  .header-nav,.header-entry{display:none}
  .menu-toggle{display:flex}
  .mobile-menu{top:60px}
  .header-logo img{width:64px;height:48px}
  main>section{padding:80px 20px}
  .hero{display:flex;flex-direction:column;min-height:0;padding-top:60px!important}
  .hero-copy{padding:24px 20px 48px}
  .hero-logo{width:220px;margin-left:-8px}
  .hero-kicker{margin-top:16px;font-size:12px}
  .hero-kicker br{display:block}
  h1{font-size:32px}
  .hero-period{margin-top:32px}
  .hero-period .period{font-size:34px}
  .hero-action{margin-top:28px;align-self:stretch}
  .hero-action .button{width:100%}
  .hero-organizer{padding-top:32px}
  .hero-photo{order:-1;min-height:0;aspect-ratio:1659/948}
  .about{display:flex;flex-direction:column}
  .statement{font-size:48px;margin-top:16px}
  .about-body{margin-top:32px}
  .about-photo{margin-top:48px;width:78%;align-self:flex-end}
  .overview,.faq,.parents{display:block}
  .spec>div{grid-template-columns:1fr;gap:4px;padding:18px 0}
  .experience{display:flex;flex-direction:column;align-items:stretch;padding:80px 0!important}
  .experience-copy{padding:32px 20px 0}
  .partners{grid-template-columns:1fr;gap:48px}
  .partner-logo{height:72px;margin:14px 0 18px}
  .partner-logo.is-dark{max-width:240px}
  .steps{grid-template-columns:1fr;gap:40px}
  .step{display:grid;grid-template-columns:64px minmax(0,1fr);column-gap:16px}
  .step-no{grid-row:1/span 3;font-size:44px;padding:0}
  .step-date{margin-top:0}
  .step p:last-child{grid-column:2}
  .city-list{font-size:40px;gap:4px 28px}
  .after{display:flex;flex-direction:column-reverse;padding-top:0!important}
  .after-photo{margin-top:48px;width:78%}
  .after .action .button,.final .action .button{width:100%}
  .action{align-items:stretch}
  .faq-title{position:static}
  .faq-list details p{padding-right:0}
  .parents-body{margin-top:24px}
  .final{display:flex;flex-direction:column}
  .final h2{font-size:38px}
  .final-photo{margin-top:56px;width:78%;align-self:flex-end}
  .sticky-entry{padding:10px 16px}
  .sticky-entry>div{display:none}
  .sticky-entry .button{width:100%;max-width:420px}
  .notice{padding:28px 24px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{transition:none!important;animation:none!important}
  .hero-await .hero-copy>*,.hero-await h1 .line,.hero-await .hero-photo,.hero-await .hero-photo img,
  .reveal.is-pending,.reveal-image.is-pending,.reveal-image.is-pending img{opacity:1;transform:none;clip-path:none}
}

/* MP4 opening: preserve the whole frame in portrait and landscape. */
.opening-video{display:block;width:100%;height:100%;object-fit:contain;background:#070b2b}
.opening-play{position:absolute;left:50%;top:70%;transform:translate(-50%,-50%);width:max-content;max-width:calc(100% - 32px);padding:16px 20px;background:#fff;color:#191329;font:600 15px/1.5 var(--sans);border-radius:8px;cursor:pointer}
.opening-status{position:absolute;left:16px;right:16px;top:57%;margin:0;padding:12px;background:rgba(7,11,43,.85);color:#fff;text-align:center;font:400 14px/1.6 var(--sans)}
.opening [hidden]{display:none!important}
.opening-skip{min-height:44px;cursor:pointer}
@media(max-height:450px){.opening-status{top:40%}.opening-play{top:72%}}

.opening-video{opacity:.86}