/* =========================================================
   Dress Management System — Portfolio Case Study
   Y. Mukasa
   ========================================================= */

:root{
  --ink:#0d0d0d;
  --charcoal:#26262a;
  --gray:#6d6d73;
  --gray-l:#9a9a9f;
  --line:#e3e0dc;
  --line-d:#3a3a3e;
  --paper:#ffffff;
  --sand:#f6f4f1;
  --gold:#a8905f;

  --font-mincho:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP",serif;
  --font-sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic","Noto Sans JP",system-ui,-apple-system,sans-serif;
  --font-en:"Helvetica Neue",Helvetica,Arial,sans-serif;

  --pad:clamp(20px,5vw,64px);
  --rail:210px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:2;
  letter-spacing:.03em;
  font-feature-settings:"palt" 1;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
ol,ul{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3{margin:0;font-weight:400}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:999;background:var(--ink);color:#fff;padding:10px 16px}
:focus-visible{outline:1px solid var(--gold);outline-offset:3px}

/* ---------- layout ---------- */
.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 var(--pad);
}
.wrap--narrow{max-width:780px}

.sec{padding:clamp(84px,12vw,168px) 0;position:relative}
.sec--paper{background:var(--paper)}
.sec--sand{background:var(--sand)}
.sec--dark{background:var(--ink);color:#fff}

/* ---------- typography ---------- */
.eyebrow{
  font-family:var(--font-en);
  font-size:11px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--gray);
  line-height:1.6;
  margin:0 0 22px;
}
.eyebrow--light{color:rgba(255,255,255,.62)}

.num{
  font-family:var(--font-en);
  font-size:clamp(46px,7vw,86px);
  line-height:1;
  letter-spacing:.02em;
  color:transparent;
  -webkit-text-stroke:1px var(--line);
  margin:0 0 18px;
}
.sec--dark .num{-webkit-text-stroke-color:var(--line-d)}

.h2{
  font-family:var(--font-mincho);
  font-size:clamp(26px,4.2vw,50px);
  line-height:1.55;
  letter-spacing:.04em;
  font-weight:400;
}
.h2--light{color:#fff}
.h2--quote{color:var(--charcoal)}

.sec__head{margin-bottom:clamp(44px,6vw,76px);max-width:900px}

.prose p{margin:0 0 1.6em;color:#2c2c2e}
.prose p:last-child{margin-bottom:0}

/* =========================================================
   IMAGE SLOT (placeholder until file is dropped in)
   ========================================================= */
.shot{
  position:relative;
  margin:0;
  background:linear-gradient(180deg,#efece8,#e6e2dd);
  aspect-ratio:var(--ar,3/4);
  overflow:hidden;
}
.sec--sand .shot{background:linear-gradient(180deg,#e9e5e0,#ddd8d2)}
.sec--dark .shot{background:#1b1b1e}

.shot img{
  position:absolute;inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:0;
  transition:opacity .7s var(--ease);
}
.shot.is-ready img{opacity:1}

.shot::after{
  content:"IMAGE  /  " attr(data-file);
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  text-align:center;
  padding:12px;
  font-family:var(--font-en);
  font-size:10px;
  letter-spacing:.22em;
  color:var(--gray-l);
  pointer-events:none;
  transition:opacity .4s var(--ease);
}
.shot.is-ready::after{opacity:0}
.sec--dark .shot::after{color:#5a5a60}

.shot figcaption{
  position:absolute;left:0;bottom:0;
  padding:10px 14px;
  font-family:var(--font-en);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:#fff;
  background:linear-gradient(0deg,rgba(0,0,0,.55),transparent);
  width:100%;
  opacity:0;
  transition:opacity .5s var(--ease);
}
.shot.is-ready figcaption{opacity:1}
.shot--bare figcaption{display:none}

/* =========================================================
   TIMELINE RAIL (desktop)
   ========================================================= */
.rail{
  position:fixed;
  left:26px;top:50%;
  transform:translateY(-50%);
  z-index:40;
  display:none;
  padding-left:14px;
}
.rail__line{
  position:absolute;left:0;top:4px;bottom:4px;
  width:1px;background:var(--line);
}
.rail__line span{
  position:absolute;left:0;top:0;width:1px;height:0;
  background:var(--ink);
  transition:height .18s linear;
}
.rail__list li a{
  display:flex;align-items:center;gap:10px;
  padding:5px 0;
  text-decoration:none;
  font-family:var(--font-en);
  font-size:10px;
  letter-spacing:.18em;
  color:var(--gray-l);
  transition:color .3s var(--ease);
}
.rail__list li a::before{
  content:attr(data-num);
  width:20px;
}
.rail__list li a span{
  opacity:0;
  transform:translateX(-4px);
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.rail:hover li a span{opacity:.6;transform:none}
.rail__list li.is-on a{color:var(--ink)}
.rail__list li.is-on a span{opacity:1;transform:none}

.rail__line{transition:background-color .45s var(--ease)}
.rail__line span{transition:height .18s linear,background-color .45s var(--ease)}
.rail--light .rail__line{background:rgba(255,255,255,.22)}
.rail--light .rail__line span{background:#fff}
.rail--light .rail__list li a{color:rgba(255,255,255,.45)}
.rail--light .rail__list li.is-on a{color:#fff}

/* mobile progress */
.progress{
  position:fixed;left:0;top:0;right:0;height:2px;
  background:transparent;z-index:60;
}
.progress span{
  display:block;height:100%;width:0;
  background:var(--ink);
  transition:width .12s linear;
}

/* =========================================================
   SITE HEADER（本体サイトへの導線）
   ========================================================= */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 var(--pad);
  border-bottom:1px solid transparent;
  transition:background-color .4s var(--ease),border-color .4s var(--ease);
}
.site-head a{
  text-decoration:none;
  font-family:var(--font-en);
  font-size:10px;
  letter-spacing:.24em;
  color:rgba(255,255,255,.86);
  white-space:nowrap;
  transition:color .4s var(--ease),opacity .3s var(--ease);
}
.site-head__brand{letter-spacing:.3em}
.site-head__back i{font-style:normal;margin-left:8px;font-size:11px}
.site-head a:hover{opacity:.6}
.site-head.is-solid{
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom-color:var(--line);
}
.site-head.is-solid a{color:var(--ink)}

/* アンカー移動時にヘッダーへ潜り込まないように */
.sec,.interlude,.hero{scroll-margin-top:60px}

@media (max-width:479px){
  .site-head a{font-size:9px;letter-spacing:.18em}
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:0 0 clamp(70px,10vh,120px);
  background:var(--ink);
  color:#fff;
  overflow:hidden;
}
.hero__bg{position:absolute;inset:0}
.hero__bg .shot{
  width:100%;height:100%;aspect-ratio:auto;
  background:linear-gradient(160deg,#1a1a1d,#0d0d0d 60%);
}
.hero__bg .shot::after{
  color:#42424a;
  align-items:flex-end;justify-content:flex-end;
  padding:22px 24px;
}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  /* 写真が明るいので、文字が乗る左側を横方向にも落とす */
  background:
    linear-gradient(90deg,rgba(0,0,0,.72) 0%,rgba(0,0,0,.5) 42%,rgba(0,0,0,.12) 78%),
    linear-gradient(180deg,rgba(0,0,0,.5) 0%,rgba(0,0,0,.22) 35%,rgba(0,0,0,.78) 100%);
}
@media (max-width:767px){
  .hero__bg::after{
    background:linear-gradient(180deg,rgba(0,0,0,.6) 0%,rgba(0,0,0,.42) 35%,rgba(0,0,0,.85) 100%);
  }
}
.hero__inner{position:relative;z-index:2;width:100%;max-width:1180px;margin:0 auto;padding:0 var(--pad)}

.hero__copy{
  font-family:var(--font-mincho);
  font-size:clamp(25px,4.1vw,50px);
  line-height:1.55;
  letter-spacing:.03em;
  margin:0 0 clamp(24px,3vw,36px);
}
.hero__copy span{display:block}
.hero__sub{
  font-size:clamp(13px,1.4vw,16px);
  line-height:2.1;
  color:rgba(255,255,255,.82);
  margin-bottom:clamp(30px,4vw,48px);
}
.hero__meta{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,auto));
  justify-content:start;
  gap:14px 52px;
  margin:0;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero__meta div{min-width:0}
.hero__meta dt{
  font-family:var(--font-en);font-size:9px;letter-spacing:.26em;
  text-transform:uppercase;color:rgba(255,255,255,.5);line-height:2;
}
.hero__meta dd{margin:0;font-size:12.5px;line-height:1.9;color:rgba(255,255,255,.9)}

.scroll{
  position:absolute;right:var(--pad);bottom:24px;
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:10px;
  text-decoration:none;
  font-family:var(--font-en);font-size:9px;letter-spacing:.34em;
  color:rgba(255,255,255,.72);
}
.scroll i{display:block;width:1px;height:44px;background:rgba(255,255,255,.3);position:relative;overflow:hidden}
.scroll i::after{
  content:"";position:absolute;left:0;top:-44px;width:1px;height:44px;background:#fff;
  animation:scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine{0%{top:-44px}60%,100%{top:44px}}

/* =========================================================
   STEPS (background timeline)
   ========================================================= */
.steps{
  border-top:1px solid var(--line);
  margin-bottom:clamp(56px,7vw,90px);
}
.steps li{
  display:grid;
  grid-template-columns:80px 1fr auto;
  gap:0 28px;
  align-items:baseline;
  padding:26px 0;
  border-bottom:1px solid var(--line);
}
.steps__n{
  font-family:var(--font-en);font-size:12px;letter-spacing:.2em;color:var(--gray-l);
}
.steps__t{font-size:15px;line-height:1.95}
.steps__v{
  font-family:var(--font-en);font-size:13px;letter-spacing:.06em;
  color:var(--charcoal);white-space:nowrap;
}

.pull{
  font-family:var(--font-mincho);
  font-size:clamp(20px,3.2vw,38px);
  line-height:1.7;letter-spacing:.05em;
  padding-left:clamp(16px,3vw,34px);
  border-left:1px solid var(--gold);
}

/* =========================================================
   COLUMNS
   ========================================================= */
.cols{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
  margin-bottom:clamp(46px,6vw,80px);
}
.cols__text p{margin:0 0 1.5em;max-width:60ch}
.cols__text p:last-child{margin-bottom:0}
.cols__text b{font-weight:600}

.note{
  font-family:var(--font-mincho);
  font-size:clamp(15px,1.7vw,20px);
  line-height:1.9;letter-spacing:.04em;
  color:var(--charcoal);
  padding:20px 0 0;
  border-top:1px solid var(--line);
}
.sec--dark .note{border-color:var(--line-d)}

.stat{display:flex;align-items:baseline;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.stat + .note{border-top:0;padding-top:26px}
.stat b{font-family:var(--font-en);font-size:clamp(30px,4vw,46px);font-weight:400;line-height:1}
.stat span{font-size:12px;color:var(--gray)}

.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tags + p{margin-top:1.7em}
.tags li{
  font-family:var(--font-en);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  border:1px solid var(--line);padding:6px 12px;color:var(--gray);
}
.tags--dot li{
  border:0;padding:0 0 0 14px;position:relative;
  font-family:var(--font-sans);font-size:13px;letter-spacing:.04em;
  text-transform:none;color:var(--charcoal);margin-right:16px;
}
.tags--dot li::before{
  content:"";position:absolute;left:0;top:.72em;width:4px;height:4px;background:var(--gold);
}

.qlist li{
  padding:12px 0;border-bottom:1px solid var(--line);
  font-family:var(--font-mincho);font-size:16px;letter-spacing:.06em;
}
.qlist li:first-child{border-top:1px solid var(--line)}

/* =========================================================
   FLOW (torso -> AI -> model)
   ========================================================= */
.flow3{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  align-items:center;
}
.flow3__arrow{
  font-family:var(--font-en);font-size:18px;color:var(--gray-l);text-align:center;
  transform:rotate(90deg);
}
.flow3__mid{
  text-align:center;padding:26px 10px;border:1px solid var(--line);
}
.flow3__label{font-family:var(--font-en);font-size:20px;letter-spacing:.3em}
.flow3__sub{font-family:var(--font-en);font-size:9.5px;letter-spacing:.24em;color:var(--gray);text-transform:uppercase}

/* =========================================================
   BEFORE / AFTER
   ========================================================= */
.ba{border-top:1px solid var(--line)}
.ba__tabs{display:flex;gap:0}
.ba__tab{
  flex:1;
  padding:20px 10px;
  text-align:left;
  border-bottom:1px solid var(--line);
  transition:border-color .3s var(--ease),opacity .3s var(--ease);
  opacity:.42;
}
.ba__tab em{
  display:block;font-style:normal;
  font-family:var(--font-en);font-size:10px;letter-spacing:.3em;color:var(--gray);
}
.ba__tab span{
  display:block;font-family:var(--font-mincho);
  font-size:clamp(17px,2.4vw,26px);letter-spacing:.05em;margin-top:4px;
}
.ba__tab.is-on{opacity:1;border-bottom:1px solid var(--ink)}

.ba__stage{position:relative;margin-top:32px}
.ba__pane{
  display:grid;grid-template-columns:1fr;gap:24px;
  animation:fadeIn .45s var(--ease);
}
.ba__pane[hidden]{display:none}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.ba__notes li{
  padding:14px 0 14px 18px;border-bottom:1px solid var(--line);
  font-size:13.5px;position:relative;
}
.ba__notes li::before{content:"—";position:absolute;left:0;color:var(--gray-l)}

/* =========================================================
   PROMPT GENERATOR（実画面）
   ========================================================= */
.shot--ui{
  background:var(--sand);
  border:1px solid var(--line);
}
/* UIスクリーンショットは文字が切れないよう全体を表示する */
.shot--ui img{object-fit:contain}

/* タップ／クリックで原寸を開く */
.zoom{display:block;position:relative;text-decoration:none;color:inherit}
.zoom::after{
  content:"ENLARGE";
  position:absolute;right:12px;bottom:12px;
  padding:7px 12px;
  background:rgba(13,13,13,.78);
  color:#fff;
  font-family:var(--font-en);font-size:9px;letter-spacing:.2em;
  opacity:0;
  transition:opacity .3s var(--ease);
  pointer-events:none;
}
.zoom:hover::after{opacity:1}
@media (hover:none){
  .zoom::after{opacity:.72;padding:6px 9px;font-size:8px;letter-spacing:.16em;right:8px;bottom:8px}
}
.shot--ui::after{color:var(--gray-l)}

.cap.cap--left{
  text-align:left;
  font-family:var(--font-sans);
  font-size:13px;
  letter-spacing:.03em;
  line-height:1.95;
  text-transform:none;
  color:var(--gray);
  max-width:70ch;
  margin-top:16px;
}
.cap.cap--left b{color:var(--ink);font-weight:600}

.rules{
  margin:clamp(46px,6vw,76px) 0;
  border-top:1px solid var(--line);
}
.rules li{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:0 20px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.rules b{
  font-family:var(--font-en);font-size:11px;letter-spacing:.2em;
  color:var(--gray-l);font-weight:400;line-height:2.1;
}
.rules p{font-size:14.5px;line-height:1.95}
.rules em{font-style:normal;font-weight:600;color:var(--ink);border-bottom:1px solid var(--gold)}

.duo{
  display:grid;grid-template-columns:1fr;gap:34px;
  margin:clamp(40px,5vw,64px) 0;
  align-items:start;
}
/* 縦長のスマホ画面は、横並びのときだけ幅を抑える */
.duo .shot--phone{max-width:300px;margin-inline:auto}

/* すべての設定項目（折りたたみ） */
.more{
  margin-top:clamp(46px,6vw,76px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.more summary{
  list-style:none;
  cursor:pointer;
  padding:24px 0;
  display:flex;align-items:center;gap:14px;
  font-family:var(--font-en);
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--gray);
  transition:color .3s var(--ease);
}
.more summary::-webkit-details-marker{display:none}
.more summary::after{
  content:"";
  width:9px;height:9px;
  border-right:1px solid currentColor;border-bottom:1px solid currentColor;
  transform:translateY(-2px) rotate(45deg);
  transition:transform .3s var(--ease);
}
.more summary:hover{color:var(--ink)}
.more[open] summary::after{transform:translateY(2px) rotate(225deg)}
.more summary span{position:relative;top:1px}
.more__grid{
  display:grid;grid-template-columns:1fr;gap:14px;
  padding:6px 0 34px;
}
.more__grid figure{margin:0}

/* =========================================================
   INTERLUDE
   ========================================================= */
.interlude{
  background:var(--ink);color:#fff;
  min-height:78svh;
  display:flex;align-items:center;justify-content:center;
  padding:clamp(80px,14vw,160px) var(--pad);
  text-align:center;
}
.interlude__copy{
  font-family:var(--font-mincho);
  font-size:clamp(28px,6vw,72px);
  line-height:1.5;letter-spacing:.06em;
}

/* =========================================================
   MOCKUPS
   ========================================================= */
.mock{display:grid;grid-template-columns:1fr;gap:36px;align-items:end}
.device{background:#fff;border:1px solid var(--line);box-shadow:0 20px 50px -30px rgba(0,0,0,.4)}
.device--pc{padding:0;overflow:hidden}
.device__bar{display:flex;gap:6px;padding:10px 12px;border-bottom:1px solid var(--line);background:#faf9f8}
.device__bar i{width:8px;height:8px;border-radius:50%;background:#dcd8d3;display:block}
.device--sp{
  max-width:250px;margin:0 auto;padding:9px;border-radius:26px;
  border:1px solid var(--line);
}
.device--sp .shot{border-radius:18px}
.device--lg{max-width:290px}
.cap{
  margin-top:14px;text-align:center;
  font-family:var(--font-en);font-size:9.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--gray);
}

/* =========================================================
   CHECK LIST / STATUS / CHAIN
   ========================================================= */
.check{border-top:1px solid var(--line)}
.check__row{
  display:flex;align-items:center;gap:12px;
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:13px;color:var(--gray);
}
.check__row i{
  width:15px;height:15px;border:1px solid var(--gray-l);flex:none;position:relative;
}
.check__row.is-done{color:var(--ink)}
.check__row.is-done i{background:var(--ink);border-color:var(--ink)}
.check__row.is-done i::after{
  content:"";position:absolute;left:4px;top:1px;width:4px;height:8px;
  border:solid #fff;border-width:0 1.5px 1.5px 0;transform:rotate(45deg);
}

.status li{
  display:flex;align-items:baseline;gap:14px;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.status li:first-child{border-top:1px solid var(--line)}
.status em{
  font-style:normal;font-family:var(--font-en);font-size:10.5px;letter-spacing:.2em;
  min-width:118px;color:var(--charcoal);
}
.status span{font-size:13px;color:var(--gray)}
.status li:first-child em{color:var(--gold)}

.chain{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-bottom:clamp(36px,5vw,60px);
}
.chain li{
  flex:1 1 150px;
  display:flex;align-items:center;gap:12px;
  padding:18px;border:1px solid var(--line);
  font-family:var(--font-mincho);font-size:15px;letter-spacing:.05em;
}
.chain li b{
  font-family:var(--font-en);font-size:10px;letter-spacing:.18em;
  color:var(--gray-l);font-weight:400;
}
.chain--v{flex-direction:column;margin-bottom:0}
.chain--v li{flex:none}

/* =========================================================
   EVOLUTION
   ========================================================= */
.evo{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  border-top:1px solid var(--line-d);
}
.evo li{
  display:grid;
  grid-template-columns:44px 1fr;
  grid-template-areas:"n e" ". s";
  gap:2px 12px;
  padding:20px 4px;
  border-bottom:1px solid var(--line-d);
}
.evo b{
  grid-area:n;
  font-family:var(--font-en);font-size:10px;letter-spacing:.16em;
  color:#69696f;font-weight:400;line-height:1.9;
}
.evo em{
  grid-area:e;font-style:normal;
  font-family:var(--font-en);font-size:12.5px;letter-spacing:.2em;color:#fff;line-height:1.9;
}
.evo span{grid-area:s;font-size:12px;color:#8a8a90}

/* =========================================================
   ROLE / TOOLS
   ========================================================= */
.role{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
.role li{
  display:grid;grid-template-columns:46px 1fr;
  grid-template-areas:"n t" ". s";
  gap:0 14px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  font-family:var(--font-en);font-size:16px;letter-spacing:.05em;
}
.role b{grid-area:n;font-size:10px;letter-spacing:.18em;color:var(--gray-l);font-weight:400;line-height:2.2}
.role li>span{
  grid-area:s;font-family:var(--font-sans);font-size:12.5px;color:var(--gray);letter-spacing:.03em;
}

.tools{display:flex;flex-wrap:wrap;gap:10px}
.tools li{
  border:1px solid var(--line);padding:12px 18px;
  font-family:var(--font-en);font-size:12px;letter-spacing:.1em;color:var(--charcoal);
}

/* =========================================================
   GALLERY
   ========================================================= */
.gallery{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
}
.g-wide{grid-column:span 2}

/* =========================================================
   FOOTER
   ========================================================= */
.foot{background:var(--ink);color:#fff;padding:clamp(64px,9vw,110px) 0}
.foot__ttl{font-family:var(--font-mincho);font-size:clamp(20px,3vw,32px);letter-spacing:.06em}
.foot__sub{
  font-family:var(--font-en);font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-top:12px;
}
.foot__name{margin-top:34px;font-size:12.5px;color:rgba(255,255,255,.75)}
.foot__links{
  margin-top:30px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:14px 34px;
}
.foot__links a{
  text-decoration:none;font-size:12.5px;letter-spacing:.06em;
  color:rgba(255,255,255,.72);
  border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:5px;
  transition:color .3s var(--ease),border-color .3s var(--ease);
}
.foot__links a:hover{color:#fff;border-color:#fff}

/* =========================================================
   REVEAL
   ========================================================= */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
}
.reveal.is-in{opacity:1;transform:none}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (min-width:768px){
  body{font-size:15.5px}
  .cols{grid-template-columns:1.35fr .85fr;gap:clamp(36px,5vw,80px)}
  .cols--rev .cols__text{order:1}
  .cols--rev .cols__side{order:2}
  .gallery{grid-template-columns:repeat(4,1fr);gap:14px}
  .g-wide{grid-column:1 / -1}
  .flow3{grid-template-columns:1fr 40px 1fr 40px 1fr;gap:0 20px}
  .flow3__arrow{transform:none}
  .ba__pane{grid-template-columns:1fr 1fr;gap:34px;align-items:center}
  .duo{grid-template-columns:1fr 1fr;gap:30px}
  /* 高さがまちまちなので段組みで隙間なく詰める */
  .more__grid{display:block;columns:2;column-gap:16px}
  .more__grid figure{break-inside:avoid;margin-bottom:16px}
  .mock{grid-template-columns:1.6fr .55fr;gap:44px}
  .evo{grid-template-columns:repeat(3,1fr);border-top:0}
  .evo li{border-top:1px solid var(--line-d)}
  .role{grid-template-columns:repeat(2,1fr) ;column-gap:44px}
  .chain--v{max-width:none}
}

@media (min-width:1080px){
  .evo{grid-template-columns:repeat(9,1fr);gap:0}
  .evo li{
    grid-template-columns:1fr;
    grid-template-areas:"n" "e" "s";
    padding:26px 14px 30px 0;
    position:relative;
  }
  .evo li::after{
    content:"";position:absolute;left:0;top:-1px;width:7px;height:7px;
    background:var(--gold);transform:translateY(-50%) rotate(45deg);
  }
  .evo em{
    font-size:10.5px;letter-spacing:.14em;line-height:1.7;margin-top:10px;
    word-break:break-word;min-height:3.4em;
  }
  .evo span{margin-top:6px;font-size:11px;line-height:1.7}
  .role{grid-template-columns:repeat(3,1fr);column-gap:34px}
}

@media (min-width:1280px){
  .rail{display:block}
  body{padding-left:0}
}
@media (min-width:1280px){
  .progress{display:none}
}

@media (max-width:767px){
  body{font-size:14.5px;line-height:1.95}
  .steps li{grid-template-columns:52px 1fr;gap:0 16px}
  .steps__v{grid-column:2;font-size:12px;color:var(--gray)}
  .hero{min-height:92svh;padding-bottom:120px}
  .hero__meta{gap:14px 28px}
  .hero__bg .shot::after{color:#232329}
  .cols__text p{max-width:none}
  .status em{min-width:106px;font-size:9.5px}
  .ba__tab span{font-size:16px}
  .tags--dot li{font-size:12.5px;margin-right:12px}
  .chain li{flex:1 1 100%}
  .flow3 .shot{width:70%;margin:0 auto}
  .flow3__mid{width:70%;margin:0 auto}
  .rules li{grid-template-columns:40px 1fr;gap:0 12px}
  .cap.cap--left{font-size:12.5px}
}

/* =========================================================
   MOTION PREFERENCE
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
}

/* =========================================================
   PRINT
   ========================================================= */
@media print{
  .rail,.progress,.scroll{display:none}
  .reveal{opacity:1;transform:none}
  .sec{padding:24px 0;break-inside:avoid}
}