/* 古代コインの地下倉庫。
   階段を下りた先のスピークイージー。土の中のような暗い地に、裸電球の真鍮色の灯りがひとつ。
   銀貨はその灯りの下でだけ光る。ローマの碑文の書体（Cinzel）と、明朝の見出し。
   暗い一つの世界に決めて作る（明るい版は作らない） */
:root{
  --bg:#110D0A; --bg-2:#18120E; --paper:#1F1812; --paper-2:#271E17;
  --ink:#EEE4D2; --muted:#A69683; --faint:#6E6153; --line:#3A2E25;
  --brass:#D6B06A; --brass-deep:#9C7B42; --brass-soft:#2E2417;
  --patina:#8CC4B0; --patina-soft:#16241F; --missing:#E59A88;
  --glow:rgba(214,176,106,.16);
  --roman:"Cinzel","Times New Roman",serif;
  --display:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --body:"Noto Sans JP","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  color-scheme: dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.95;letter-spacing:.02em}
/* 土の粒子。ごく薄く全体にかける */
body::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:100;opacity:.07;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
a{color:var(--brass);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--ink)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
img{max-width:100%}
.inner{max-width:1080px;margin:0 auto;padding-left:max(20px, env(safe-area-inset-left, 0px));padding-right:max(20px, env(safe-area-inset-right, 0px))}
main.inner{max-width:820px;padding-block:24px 72px}
main.wide{padding:0}

/* ---- 看板 ---- */
.masthead{position:relative;z-index:2;border-bottom:1px solid var(--line);background:linear-gradient(var(--bg),transparent)}
.masthead-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 28px;padding-block:18px}
/* 副題はロゴの右に、細い縦線で区切って置く（2026-10-24 取締役） */
.brand{text-decoration:none;color:var(--ink);display:flex;flex-direction:row;align-items:center;gap:18px}
.brand .brand-sub{border-left:1px solid var(--brass-deep);padding:6px 0 6px 18px;line-height:1.6;white-space:nowrap}
.brand-sub br.sp{display:none}
/* ロゴは真鍮色で書き出した SVG（M＋筆記体の店名）。高さで大きさを決める */
.brand-logo{display:block;height:88px;width:auto}
.brand-sub{font-family:var(--display);font-size:12px;letter-spacing:.3em;color:var(--muted)}
.sections{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:13px;letter-spacing:.08em}
.sections a{color:var(--muted);text-decoration:none;padding:4px 0;border-bottom:1px solid transparent}
.sections a:hover{color:var(--brass);border-bottom-color:var(--brass-deep)}

/* ---- 共通の部品 ---- */
.eyebrow{margin:0 0 14px;font-family:var(--roman);font-size:12px;letter-spacing:.32em;color:var(--brass)}
.kind{display:inline-block;margin:0 0 6px;font-family:var(--display);font-size:13px;letter-spacing:.24em;color:var(--brass);border-top:1px solid var(--brass-deep);border-bottom:1px solid var(--brass-deep);padding:2px 12px}
h1,h2,h3{font-family:var(--display);font-weight:700;letter-spacing:.06em;text-wrap:balance;word-break:auto-phrase}
h1{font-size:34px;line-height:1.45;margin:10px 0 12px}
h2{font-size:22px;line-height:1.5;margin:56px 0 14px}
h3{font-size:17px}
.muted{color:var(--muted);font-size:13px}
.btn{display:inline-block;font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.14em;text-decoration:none;padding:13px 26px;border:1px solid var(--brass);transition:background-color .25s,color .25s}
.btn-brass{background:var(--brass);color:var(--bg)}
.btn-brass:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.btn-ghost{color:var(--brass)}
.btn-ghost:hover{background:var(--brass-soft);color:var(--ink)}
.crumbs{font-size:12px;letter-spacing:.06em;color:var(--faint);margin:6px 0 26px}
.crumbs a{color:var(--muted);text-decoration:none}
.missing{color:var(--missing);border-bottom:1px dotted var(--missing);cursor:help}
.draft{font-size:13px;color:var(--brass);border:1px dashed var(--brass-deep);padding:6px 12px}

/* ---- 入口の見出し（地下への階段で使う） ---- */
.hero-title{font-size:clamp(26px,3.9vw,46px);line-height:1.42;letter-spacing:.08em;margin:0 0 22px}
.hero-title .line{display:block;white-space:nowrap}
@keyframes lamp{0%,100%{opacity:.75}50%{opacity:1}}

/* ---- 店内トップ（ENTER の先）：言葉は最小限、写真が先 ---- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.sec-head h2,.shelves h2{margin:0;font-size:clamp(22px,2.6vw,30px);letter-spacing:.1em}
.more{font-family:var(--roman);font-size:12px;letter-spacing:.28em;text-decoration:none}
.room-no{font-family:var(--roman);font-size:13px;letter-spacing:.2em;color:var(--brass)}
.room-count{font-size:12px;color:var(--muted)}
/* 今夜の一枚：灯りの下にコインを一枚、オークションのロットのように */
.tonight{position:relative;padding-block:96px 80px;background:radial-gradient(ellipse 48% 70% at 30% 50%,rgba(214,176,106,.17),transparent 66%)}
.tonight-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.tonight-coin{margin:0;text-align:center}
.tonight-coin img{width:min(440px,100%);height:auto;filter:drop-shadow(0 30px 36px rgba(0,0,0,.8));animation:coinfloat 8s ease-in-out infinite}
@keyframes coinfloat{50%{transform:translateY(-8px) rotate(-1deg)}}
.tonight-text h2{margin:0 0 16px;font-size:clamp(24px,3vw,36px);line-height:1.5;letter-spacing:.06em}
.lot-meta{margin:0;font-size:13px;color:var(--muted);letter-spacing:.06em}
.lot-no{font-family:var(--roman);color:var(--brass);letter-spacing:.18em;margin-right:12px}
.lot-price{font-family:var(--display);font-size:20px;color:var(--ink);margin:14px 0 32px}
/* 店内のいちばん上の大きな画面：画面いっぱいの情景。スライドはゆっくり重ねて入れ替える（scripts/slides.js） */
.showcase{position:relative;height:min(72vh,760px);min-height:320px;overflow:hidden;background:#000}
.slides,.slide{position:absolute;inset:0;margin:0}
.slide{opacity:0;transition:opacity 1.6s ease}
.slide.is-on{opacity:1}
.slide img,.slide video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;max-width:none}
.slide.is-on img{animation:drift 22s ease-out both}
@keyframes drift{from{transform:scale(1.06)}to{transform:scale(1)}}
.showcase::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(17,13,10,.55),transparent 22%,transparent 70%,var(--bg)),radial-gradient(120% 90% at 50% 45%,transparent 55%,rgba(0,0,0,.55))}
.slide-dots{position:absolute;z-index:2;left:50%;bottom:22px;transform:translateX(-50%);display:flex;gap:10px}
.slide-dots button{width:9px;height:9px;padding:0;border-radius:50%;border:1px solid var(--brass);background:transparent;cursor:pointer}
.slide-dots button[aria-current="true"]{background:var(--brass)}
/* 資料の入口：まず信用。出典でたどること、数字、印、編集方針 */
.archive{padding-block:72px 64px;text-align:center;border-bottom:1px solid var(--line);background:radial-gradient(ellipse 60% 90% at 50% 0,rgba(214,176,106,.10),transparent 70%)}
.archive h2{margin:0 0 34px;font-size:clamp(24px,3.2vw,38px);letter-spacing:.14em}
.stats{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 64px;margin:0 0 30px}
.stats div{display:flex;flex-direction:column;align-items:center}
.stats dt{order:2;font-family:var(--roman);font-size:11px;letter-spacing:.3em;color:var(--muted)}
.stats dd{order:1;margin:0;font-family:var(--roman);font-size:clamp(28px,3.4vw,40px);color:var(--brass);font-variant-numeric:tabular-nums;line-height:1.3}
.archive .marks-list{padding:0 0 18px}
.archive-links{margin:0;display:flex;justify-content:center;flex-wrap:wrap;gap:6px 26px;font-size:13px;letter-spacing:.1em}
.archive-links a{color:var(--muted)}
.archive-links a:hover{color:var(--brass)}
/* 資料目録：本の情景と、整理された記録欄 */
#vault .archive-layout{display:block;max-width:820px;text-align:left}
.archive-scene{position:relative;align-self:stretch;min-height:320px;overflow:hidden;border:1px solid #8d724133}
.archive-scene img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:40% center;opacity:.8}
.archive-scene::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#100d08e8,transparent 60%)}
.archive-scene>span{position:absolute;z-index:1;bottom:24px;left:24px;font:11px var(--roman);letter-spacing:.28em;color:#cab58c}
.archive-content{min-width:0;padding:12px 0}
#vault .archive .eyebrow{font-size:10px;letter-spacing:.25em;color:#ab946b;margin-bottom:16px}
#vault .archive h2{font-size:clamp(22px,2.3vw,30px);line-height:1.65;letter-spacing:.08em;margin:0 0 25px;font-weight:400}
#vault .archive .stats{display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:0;margin:0 0 24px;padding:20px 0;border-top:1px solid #9c804345;border-bottom:1px solid #9c804345}
#vault .archive .stats>div{min-width:0;padding:0 16px;border-left:1px solid #9c80432b;align-items:flex-start}
#vault .archive .stats>div:first-child{border-left:0;padding-left:0}
#vault .archive .stats dd{font-size:32px;line-height:1.2;color:#d7c7a6;letter-spacing:.02em}
#vault .archive .stats dt{font-size:9px;letter-spacing:.16em;color:#95856c;margin-top:10px}
#vault .archive .stats time{font-size:20px;white-space:nowrap}
#vault .archive .marks-list{justify-content:flex-start;gap:12px 22px;font-size:12px;letter-spacing:.06em;padding:0 0 24px;color:#b9ad98}
#vault .archive .marks-list b{color:#8e7957;font-size:11px;margin-right:8px}
#vault .archive-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;font-size:12px;letter-spacing:.05em}
#vault .archive-links a{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #9c804340;text-decoration:none;color:#d2c4ac}
#vault .archive-links a::after{content:"↗";font-size:15px;color:#a28c64;margin-left:5px}
#vault .archive-links a:hover{color:#f0e4cf;border-color:#b99e6e}
@media(max-width:760px){#vault .archive-layout{grid-template-columns:1fr;gap:28px}.archive-scene{min-height:190px}.archive-scene img{object-position:center 54%}#vault .archive h2{font-size:24px}#vault .archive .stats>div{padding:0 12px}#vault .archive .stats dd{font-size:29px}#vault .archive .stats time{font-size:17px}#vault .archive-links{gap:12px;font-size:11px}#vault .archive .marks-list{gap:12px 19px}}
/* はじめての方へ */
.first{padding-block:72px;border-top:1px solid var(--line)}
.first h2{margin:0 0 28px;font-size:clamp(22px,2.6vw,30px);letter-spacing:.1em}
.first-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:32px;align-items:center}
.first-main{display:block;position:relative;border:1px solid #5a4630;box-shadow:0 18px 40px rgba(0,0,0,.6),0 0 60px var(--glow);text-decoration:none;color:var(--ink);overflow:hidden}
.first-main img{display:block;width:100%;height:auto;transition:transform .6s}
.first-main:hover img{transform:scale(1.02)}
.first-title{position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-family:var(--display);font-weight:700;font-size:17px;letter-spacing:.08em;background:linear-gradient(0deg,rgba(10,8,6,.92),transparent)}
.first-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.first-list a{display:flex;align-items:baseline;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);font-family:var(--display);font-size:16px;letter-spacing:.06em;color:var(--ink);text-decoration:none}
.first-list a:hover{color:var(--brass)}
/* 新しい記事 */
.news{padding-block:64px 72px;border-top:1px solid var(--line);background:var(--bg-2)}
.news-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}
.news-list a{display:grid;grid-template-columns:auto auto minmax(0,1fr);gap:4px 16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink)}
.news-list a:hover .news-title{color:var(--brass)}
.news-list time{font-family:var(--roman);font-size:12px;letter-spacing:.12em;color:var(--muted);font-variant-numeric:tabular-nums}
.news-shelf{font-size:11px;color:var(--brass-deep);letter-spacing:.1em;white-space:nowrap}
.news-title{font-family:var(--display);font-size:15px;line-height:1.6;min-width:0}
/* お譲りできるコイン：出口に控えめに。値段は個々のページで */
.lots{padding-block:72px;border-top:1px solid var(--line);background:linear-gradient(var(--bg-2),var(--bg))}
.lot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:18px}
.lot{display:flex;flex-direction:column;align-items:center;text-align:center;padding:28px 16px 22px;border:1px solid var(--line);
  background:radial-gradient(circle at 50% 36%,rgba(214,176,106,.11),transparent 60%),var(--paper);text-decoration:none;color:var(--ink);transition:border-color .3s,transform .3s}
.lot:hover{border-color:var(--brass-deep);transform:translateY(-3px);color:var(--ink)}
.lot-img{width:72%;height:auto;margin-bottom:18px;filter:drop-shadow(0 14px 18px rgba(0,0,0,.7));transition:transform .5s}
.lot:hover .lot-img{transform:scale(1.05) rotate(-3deg)}
.lot .lot-no{margin:0 0 4px;font-size:12px}
.lot-name{font-family:var(--display);font-size:14px;line-height:1.6;min-height:3.2em}
.lot .lot-price{font-size:14px;margin:8px 0 0;color:var(--brass)}
/* 店内の収蔵トレー：写真と説明を分け、実物の輪郭と余白を見せる */
#vault .lot-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 24px}
#vault .lot{align-items:stretch;padding:0;text-align:left;border:0;background:none;box-shadow:none;transform:none}
#vault .lot-tray{position:relative;display:grid;place-items:center;aspect-ratio:1.18;overflow:hidden;border:1px solid #78613b66;background:radial-gradient(ellipse at 50% 35%,#343029 0%,#1a1916 50%,#11110f 100%);box-shadow:inset 0 0 0 7px #17140f,inset 0 0 0 8px #77613c30}
#vault .lot-tray::before,#vault .lot-tray::after{content:"";position:absolute;width:15px;height:15px;pointer-events:none}
#vault .lot-tray::before{top:16px;left:16px;border-top:1px solid #ad8b505e;border-left:1px solid #ad8b505e}
#vault .lot-tray::after{right:16px;bottom:16px;border-right:1px solid #ad8b505e;border-bottom:1px solid #ad8b505e}
#vault .lot-img{width:60%;margin:0 0 15px;filter:drop-shadow(0 10px 10px #0009);transition:transform .5s}
#vault .lot:hover .lot-img,#vault .lot:focus-visible .lot-img{transform:translateY(-3px) scale(1.035)}
#vault .lot-tray .lot-no{position:absolute;bottom:16px;left:0;right:0;text-align:center;font-size:11px;letter-spacing:.23em;color:#b99e6e;margin:0}
#vault .lot-caption{display:flex;flex:1;flex-direction:column;padding:17px 3px 12px;border-bottom:1px solid #8b704032}
#vault .lot-name{font-size:16px;font-weight:400;line-height:1.85;letter-spacing:.04em;min-height:0;color:#e5dac7}
#vault .lot-view{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:17px;font-size:10px;letter-spacing:.14em;color:#aa9879}
#vault .lot-view span{font-size:17px;font-family:serif}
#vault .lot:hover .lot-tray,#vault .lot:focus-visible .lot-tray{border-color:#b99e6e}
#vault .lot:focus-visible{outline:1px solid #b99e6e;outline-offset:5px}
@media(max-width:600px){#vault .lot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 14px}#vault .lot-name{font-size:13px;line-height:1.8}#vault .lot-caption{padding:12px 1px 10px}#vault .lot-tray{aspect-ratio:1}#vault .lot-img{width:66%;margin-bottom:20px}#vault .lot-tray .lot-no{font-size:9px;bottom:13px}}
@media(prefers-reduced-motion:reduce){#vault .lot-img{transition:none}#vault .lot:hover .lot-img,#vault .lot:focus-visible .lot-img{transform:none}}
.lot.is-sold{opacity:.55}
/* 地下倉庫の棚：6つの棚。机の絵の札と同じ番号（I〜VI）。木の引き出しに所蔵品の写真、真鍮の名札（2026-11-02） */
.shelves{padding-block:88px 72px}
.shelves h2{margin-bottom:28px}
.shelf-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.shelf{position:relative;display:block;aspect-ratio:4/3.3;max-width:100%;overflow:hidden;text-decoration:none;color:var(--ink);border:1px solid #80663f66;border-radius:2px;
  background:radial-gradient(ellipse at 50% 36%,rgba(214,176,106,.17),transparent 58%),linear-gradient(160deg,#271e15,#110d0a);
  box-shadow:inset 0 0 0 5px #0d0a0799,inset 0 0 0 6px #a8894c22,0 6px 16px #0005;transition:border-color .25s,box-shadow .25s,transform .25s}
.shelf:after{content:"";position:absolute;right:10px;bottom:10px;width:14px;height:14px;border-right:1px solid #ac8a4b66;border-bottom:1px solid #ac8a4b66;pointer-events:none}
.shelf:hover,.shelf:focus-visible{color:var(--ink);border-color:#c0a16a;transform:translateY(-3px);box-shadow:inset 0 0 0 5px #0d0a0799,inset 0 0 0 6px #c0a16a44,0 10px 22px #0007}
.shelf-no{position:absolute;left:16px;top:16px;z-index:2;display:grid;place-items:center;width:36px;height:36px;border:1px solid #bda372;border-radius:50%;color:#f5dfb0;background:radial-gradient(circle at 35% 25%,#79603a,#33271a 72%);box-shadow:inset 0 0 0 3px #352718,inset 0 0 0 4px #a98a5280,0 3px 8px #0009;font:12px Georgia,serif;text-shadow:0 1px 2px #000}
.shelf-count{position:absolute;right:18px;top:24px;z-index:2;font:11px system-ui;letter-spacing:.16em;color:var(--muted)}
.shelf-scene{position:absolute;inset:0;display:block;overflow:hidden}
.shelf-scene img{width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .6s}
.shelf:hover .shelf-scene img,.shelf:focus-visible .shelf-scene img{transform:scale(1.035)}
.shelf-coin{position:absolute;left:50%;top:43%;width:39%;height:auto;transform:translate(-50%,-50%);filter:drop-shadow(0 8px 6px #0009)}
.shelf-count{padding:4px 7px;top:20px;right:14px;background:#171008bb;border-radius:2px;color:#e1d2b7}
.shelf-cap{position:absolute;left:0;right:0;bottom:0;padding:28px 16px 18px;text-align:center;background:linear-gradient(0deg,#0d0a07f5 45%,transparent)}
.shelf-name{display:block;padding:0;color:#eee2cd;font-family:var(--display);font-weight:400;font-size:21px;line-height:1.5;letter-spacing:.18em;text-shadow:0 2px 10px #0009}
.shelf-name::before{content:"";display:block;width:24px;height:1px;margin:0 auto 10px;background:#b89b6480}
.shelf-note{display:block;margin-top:7px;font-size:11px;letter-spacing:.06em;color:#b9ad98}
@media(prefers-reduced-motion:reduce){.shelf,.shelf-scene img{transition:none}.shelf:hover,.shelf:focus-visible,.shelf:hover .shelf-scene img,.shelf:focus-visible .shelf-scene img{transform:none}}
/* 信頼の印 */
.marks-list{list-style:none;margin:0;padding:18px 0;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 40px;font-family:var(--display);font-size:14px;letter-spacing:.14em;color:var(--muted)}
.marks-list b{font-family:var(--roman);font-weight:400;color:var(--brass);margin-right:10px}
/* この地下倉庫について（トップの定義文） */
.intro{padding-block:52px 88px;text-align:center}
.intro .prose{max-width:40em;margin:0 auto;color:var(--muted);font-size:14px}

/* ---- 記事 ---- */
.article-head{margin-bottom:28px}
.article-head.has-stage{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);align-items:center;gap:28px}
.lede{font-size:16px;color:var(--muted);margin:0 0 14px;max-width:38em}
.dates{margin:0;font-size:12px;letter-spacing:.06em}
.stage{margin:0;position:relative;text-align:center}
.stage::before{content:"";position:absolute;inset:4% 2% 18%;border-radius:50%;background:radial-gradient(circle, rgba(214,176,106,.18), transparent 68%)}
.stage img{position:relative;width:min(300px,100%);height:auto;filter:drop-shadow(0 20px 26px rgba(0,0,0,.75))}
.stage figcaption{position:relative;font-size:12px;color:var(--muted);margin-top:8px;line-height:1.6}
.prose{max-width:40em}
.prose h2{border-bottom:1px solid var(--line);padding-bottom:8px}
.prose table{border-collapse:collapse;font-size:14px;width:100%}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{color:var(--muted);font-weight:500}
.plate{margin:8px 0 28px;max-width:480px}
.plate img{display:block;width:100%;height:auto}
.portrait img{clip-path:ellipse(48% 48.5% at 50% 50%)}
.portrait.portrait-scene img{clip-path:none;border-radius:48% 48% 2px 2px}
.portrait-story{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:center;margin:32px 0 48px;padding:24px 0 36px;border-bottom:1px solid var(--line)}
.portrait-story .portrait{margin:0;min-width:0}
.portrait-story-text{min-width:0}
.portrait-story-text>h2{font-size:clamp(22px,2.6vw,32px);line-height:1.6;font-weight:500;color:var(--brass);margin:0 0 24px;letter-spacing:.08em}
.portrait-story-text .prose{font-size:16px;line-height:2}
.story-trail{font-size:13px;letter-spacing:.12em;color:var(--muted);margin-top:28px}
.life-timeline{margin:0 0 36px}
.life-timeline>p{font-size:13px;letter-spacing:.16em;color:var(--muted)}
.life-timeline ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:20px 0;border-top:1px solid var(--brass)}
.life-timeline li{position:relative;padding:20px 10px 0 0;min-width:0}
.life-timeline li:before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--brass)}
.life-timeline a{display:block;text-decoration:none;padding:4px 0}
.life-timeline span{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}
.life-timeline strong{font-size:14px;font-weight:500;line-height:1.7}
.life-timeline a:hover strong,.life-timeline a:focus-visible strong{text-decoration:underline}
.prose figure.history-coin{padding:24px;background:var(--bg-2);border-color:var(--line)}
.history-coin-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:560px;margin:auto}
.history-coin-pair a{min-width:0}
.history-coin figcaption{font-size:12px;line-height:1.9;color:var(--muted);margin-top:20px}
.prose h2[id],.history-anchor{scroll-margin-top:28px}
@media(max-width:540px){.life-timeline ol{grid-template-columns:1fr;border-top:0;border-left:1px solid var(--brass);margin-left:4px}.life-timeline li{padding:0 0 20px 20px}.life-timeline li:before{top:10px;left:-4px}.life-timeline span{margin-bottom:2px}.history-coin-pair{gap:12px}.prose figure.history-coin{padding:16px}}
@media(max-width:700px){.portrait-story{grid-template-columns:1fr;gap:28px;margin-top:12px;padding-top:0}.portrait-story .portrait{max-width:340px;margin:0 auto}.portrait-story-text>h2{font-size:25px;margin-bottom:18px}}
.plate figcaption{font-size:12px;color:var(--muted);margin-top:8px}
/* 要点の上に置く写真（image.lead）。表裏の銀貨と同じ灯りの地に、写真の黒い背景をなじませる */
.plate.lead{max-width:none;background:radial-gradient(circle at 50% 42%,var(--glow),transparent 62%),var(--bg-2);border:1px solid #3a2e25;text-align:center;padding:26px 12px 14px}
.plate.lead img{width:min(92%,430px);margin:0 auto;mix-blend-mode:lighten}
.plate.lead figcaption{text-align:left;font-size:13px}
/* 本文中の図・写真 */
.prose figure{margin:26px 0 30px;background:var(--paper);border:1px solid var(--line);padding:12px}
.prose figure img{display:block;width:100%;height:auto}
.prose figure.coin-pair{display:grid;grid-template-columns:1fr 2.1fr;gap:12px;align-items:center}
.prose figure.coin-pair figcaption{grid-column:1 / -1}
.prose figure.wide{overflow-x:auto}
@media (max-width:600px){
  .prose figure.coin-pair{grid-template-columns:1fr}
  .prose figure.coin-pair a:first-child{max-width:60%;margin:0 auto}
  .prose figure.wide img{min-width:520px}
}
.prose figcaption{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.6}
.prose .table-scroll{overflow-x:auto}

/* お譲りの価格とカート */
.cart-link{position:relative}
.cart-count{display:inline-grid;place-items:center;min-width:18px;height:18px;margin-left:5px;padding:0 5px;border-radius:9px;background:var(--brass);color:var(--bg);font-size:11px;font-weight:700;vertical-align:1px}
.buy-box .price{font-family:var(--display);font-size:28px;color:var(--brass);margin:4px 0 10px}
.buy-box .price .muted{font-family:var(--body);font-size:13px;margin-left:8px}
.buy-box .price.sold{color:var(--muted);font-size:22px}
.add-to-cart.in-cart{background:transparent;color:var(--brass)}
.price-tag{display:inline-block;margin-left:10px;font-family:var(--display);font-weight:700;color:var(--brass)}
.price-tag.sold{color:var(--muted);font-weight:500}
.cart-list{list-style:none;margin:20px 0 0;padding:0;max-width:44em}
.cart-list li{display:grid;grid-template-columns:72px 1fr auto auto;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.cart-list img{width:72px;height:72px;object-fit:cover;border-radius:50%;background:var(--paper)}
.cart-title{display:flex;flex-direction:column;line-height:1.5}
.cart-title .muted{font-size:12px}
.cart-price{font-family:var(--display);font-weight:700;color:var(--ink)}
.cart-remove{background:none;border:1px solid var(--line);color:var(--muted);font:inherit;font-size:12px;padding:4px 10px;cursor:pointer}
.cart-remove:hover{color:var(--ink);border-color:var(--brass-deep)}
.cart-total{max-width:44em;text-align:right;margin:16px 0 0;font-size:16px}
.cart-total b{font-family:var(--display);font-size:24px;color:var(--brass);margin-left:6px}
.cart-notice{border-left:2px solid var(--brass-deep);padding:6px 12px;color:var(--muted)}
.cart-pay{max-width:44em;margin-top:32px}
.cart-pay section{border:1px solid var(--line);background:var(--paper);padding:18px 22px;margin:0 0 16px}
.cart-pay h3{margin:0 0 6px}
.cart-pay .hp{position:absolute;left:-9999px}
.cart-pay label{display:block;font-size:14px}
.cart-pay label.agree{display:flex;gap:8px;align-items:flex-start}
#thanks [hidden]{display:none}
@media (max-width:600px){
  .cart-list li{grid-template-columns:56px 1fr;grid-template-areas:"img title" "img price" "img remove"}
  .cart-list img{width:56px;height:56px}
}

/* 記事の書き出しの「時の印」：その場面の年 */
.prose .time-stamp{margin:0 0 6px;font-family:var(--roman);font-size:13px;letter-spacing:.3em;color:var(--brass)}

/* コインを裏返す（coin-flip.js）。動かない時は表と裏を横に並べる */
.prose figure.coin-flip{background:radial-gradient(circle at 50% 42%,var(--glow),transparent 62%),var(--bg-2);border-color:#3a2e25;text-align:center;padding:26px 12px 14px}
.coin-flip .coin{display:flex;gap:12px;justify-content:center;background:none;border:0;padding:0;margin:0 auto;cursor:default;font:inherit;color:inherit}
.coin-flip .face{display:block;width:min(46%,240px);height:auto;border-radius:50%;filter:drop-shadow(0 18px 22px rgba(0,0,0,.7))}
.coin-flip.is-ready .coin{position:relative;display:block;width:min(78%,300px);aspect-ratio:400/387;cursor:pointer;perspective:1000px}
.coin-flip.is-ready .coin-inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .9s cubic-bezier(.3,.7,.2,1)}
.coin-flip.is-ready.is-flipped .coin-inner{transform:rotateY(180deg)}
.coin-flip.is-ready .face{position:absolute;inset:0;width:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden}
.coin-flip.is-ready .face.back{transform:rotateY(180deg)}
.coin-flip .coin-inner{display:contents}
.coin-flip.is-ready .coin-inner{display:block}
.coin-flip .coin-hint{display:none;margin:14px 0 0;font-family:var(--display);font-size:14px;color:var(--brass)}
.coin-flip.is-ready .coin-hint{display:block}
.coin-flip .coin:focus-visible{outline:2px solid var(--brass);outline-offset:6px;border-radius:50%}
@media (prefers-reduced-motion: reduce){.coin-flip.is-ready .coin-inner{transition:none}}

/* 時の航海：古い地図と時の扉（記事 periods/greece-and-rome） */
.voyage{--map-ink:#3E2C1C;--map-paper:#E8D9B8;--seal:#8E2A1C;margin:34px 0 40px;max-width:none}
.voyage-head{text-align:center;margin:0 0 14px}
.voyage-head .eyebrow{margin-bottom:6px}
.voyage-head h2{border:0;margin:0;padding:0;font-size:24px}
.voyage-head p{margin:6px 0 0;color:var(--muted);font-size:14px}
.voyage-stage{position:relative;overflow-x:auto;border-radius:4px;box-shadow:0 18px 40px rgba(0,0,0,.6),0 0 0 1px #5a4630,0 0 60px var(--glow);-webkit-overflow-scrolling:touch}
.voyage-stage svg,.voyage-stage img{display:block;width:100%;height:auto}
.voyage-nav{display:none}
.voyage.is-ready .voyage-nav{display:flex;align-items:center;gap:8px;margin:18px 0 6px}
.voyage-doors{display:flex;flex:1;justify-content:space-between;position:relative;min-width:0}
.voyage-doors::before{content:"";position:absolute;left:4%;right:4%;top:22px;border-top:2px dotted var(--brass-deep)}
.voyage-door{position:relative;background:none;border:0;padding:0;cursor:pointer;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:6px;flex:1;min-width:0;font:inherit}
.voyage-door .seal{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;font-family:var(--roman);font-weight:700;font-size:14px;color:#F3DFC0;
  background:radial-gradient(circle at 35% 30%,#B5462E,var(--seal) 55%,#4E140B);box-shadow:inset 0 0 0 3px rgba(0,0,0,.25),0 3px 6px rgba(0,0,0,.6);transition:transform .25s,box-shadow .25s}
.voyage-door .when{font-size:12px;line-height:1.3;text-align:center;white-space:nowrap}
.voyage-door:hover .seal{transform:translateY(-2px)}
.voyage-door.is-past .seal{filter:saturate(.6) brightness(.85)}
.voyage-door[aria-pressed="true"] .seal{transform:scale(1.12);box-shadow:0 0 0 2px var(--brass),0 0 22px rgba(214,176,106,.55)}
.voyage-door[aria-pressed="true"] .when{color:var(--brass)}
.voyage-prev,.voyage-next{flex:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--brass-deep);background:var(--bg-2);color:var(--brass);font-size:18px;cursor:pointer}
.voyage-prev:disabled,.voyage-next:disabled{opacity:.3;cursor:default}
.voyage-stops{list-style:none;margin:16px 0 0;padding:0}
.voyage-stop{position:relative;margin:0 0 14px;padding:20px 24px 18px;background:linear-gradient(180deg,#EBDDBE,#DCC89F);color:var(--map-ink);border-radius:3px;
  box-shadow:0 10px 26px rgba(0,0,0,.5),inset 0 0 40px rgba(122,90,50,.35)}
.voyage.is-ready .voyage-stop{display:none}
.voyage.is-ready .voyage-stop.is-active{display:block;animation:unfold .6s ease}
@keyframes unfold{from{opacity:0;transform:translateY(8px) rotate(-.4deg)}to{opacity:1;transform:none}}
.voyage-stop .voyage-when{margin:0;font-family:var(--roman);font-size:13px;letter-spacing:.25em;color:#8E2A1C}
.voyage-stop h3{margin:2px 0 8px;font-family:var(--display);font-size:22px;color:var(--map-ink)}
.voyage-stop p{margin:0 0 8px;font-size:15px;line-height:1.85}
.voyage-stop a{color:#7A3A1A}
.voyage-stop .cite a{color:#2E7A6B}
.voyage-stop .to-vault{margin:12px 0 0;padding-top:10px;border-top:1px dashed rgba(62,44,28,.35)}
.voyage-stop .to-vault a{font-family:var(--display);font-weight:700;font-size:15px;color:#8E2A1C;text-decoration:none}
.voyage-stop .to-vault a:hover{text-decoration:underline}
.voyage-stop img{float:right;width:120px;height:auto;margin:0 0 8px 16px;filter:drop-shadow(0 6px 8px rgba(62,44,28,.45))}
.voyage-stop img.wide{width:200px}
.voyage-stop::after{content:"";display:block;clear:both}
@media (prefers-reduced-motion: reduce){.voyage.is-ready .voyage-stop.is-active{animation:none}}
@media (max-width:600px){
  .voyage-stage svg{min-width:640px}
  .voyage-door .seal{width:34px;height:34px;font-size:11px}
  .voyage-doors::before{top:17px}
  .voyage-door .when{font-size:10px;white-space:normal}
  .voyage-prev,.voyage-next{width:32px;height:32px;font-size:15px}
  .voyage-stop img{width:90px}
  .voyage-stop img.wide{float:none;display:block;width:100%;margin:0 0 10px}
}

/* 要点：真鍮の額 */
.summary{margin:0 0 30px;padding:20px 24px;background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--brass)}
.summary h2{margin:0 0 8px;font-size:14px;letter-spacing:.3em;color:var(--brass)}
.summary ul{margin:0;padding-left:1.2em}
.summary li{margin:4px 0}

/* コインデータ：台帳のように */
.spec{border-collapse:collapse;margin:0 0 34px;width:100%;max-width:40em;font-size:14px;border-top:1px solid var(--brass-deep);border-bottom:1px solid var(--brass-deep)}
.spec caption{text-align:left;font-family:var(--display);font-size:13px;letter-spacing:.3em;color:var(--brass);padding:0 0 10px}
.spec th{width:7.5em;text-align:left;color:var(--muted);font-weight:500;padding:10px 12px 10px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec td{padding:10px 0;border-bottom:1px solid var(--line)}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}
sup.cite{font-size:10px;line-height:0;margin-left:2px}
sup.cite a{text-decoration:none;color:var(--patina)}

.faq .qa{padding:14px 0;border-bottom:1px solid var(--line)}
.faq h3{margin:0 0 6px;color:var(--ink)}
.faq h3::before{content:"Q.";font-family:var(--roman);color:var(--brass);margin-right:10px}
.faq p{margin:0;color:var(--muted)}
.holdings{margin-top:44px;padding:20px 24px;background:var(--patina-soft);border:1px solid #2A3D35}
.holdings h2{margin:0 0 4px;font-size:18px}
.holdings ul{margin:8px 0 0;padding-left:1.2em}
.disclosure{font-size:12px;color:var(--muted);border-left:2px solid var(--brass-deep);padding:4px 12px;margin-top:14px}
.sources,.history,.backlinks{font-size:13px;color:var(--muted)}
.sources h2,.history h2,.backlinks h2{font-size:15px;letter-spacing:.2em;color:var(--brass);margin-top:44px}
.sources ol,.history ul,.backlinks ul,.changes{padding-left:1.4em}
.sources li{margin:4px 0}
.sources li:target{color:var(--ink);background:var(--brass-soft)}
.sources a{word-break:break-all}
.about-article{margin-top:44px;padding:16px 20px;border:1px dashed var(--line);font-size:12px;color:var(--muted)}
.about-article h2{margin:0 0 6px;font-size:14px;letter-spacing:.2em}
.about-article ul{margin:0;padding-left:1.2em}

/* 一覧（棚の中） */
ul.index{list-style:none;padding:0;margin:20px 0 0}
ul.index li{display:flex;flex-direction:column;padding:16px 0;border-bottom:1px solid var(--line)}
ul.index a{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:.06em;text-decoration:none}
ul.index a:hover{color:var(--ink)}

/* 所蔵品の写真（撮影した全カット） */
.gallery{margin:4px 0 32px}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.gallery-grid figure:first-child{grid-column:1 / -1;max-width:560px}
.gallery figure{margin:0;background:var(--paper);border:1px solid var(--line);padding:8px;min-width:0}
.gallery img{display:block;width:100%;height:auto}
.gallery figcaption{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.5}

/* お問い合わせフォーム */
.contact-form{max-width:36em;margin:22px 0 30px;padding:22px 24px;background:var(--paper);border:1px solid var(--line)}
.contact-form .field{display:flex;flex-direction:column;gap:4px;margin:0 0 16px}
.contact-form label{font-size:13px;color:var(--muted)}
.contact-form input[type=text],.contact-form input[type=email],.contact-form select,.contact-form textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--bg);border:1px solid var(--line);padding:9px 11px;width:100%}
.contact-form input:focus-visible,.contact-form select:focus-visible,.contact-form textarea:focus-visible{outline:2px solid var(--brass);outline-offset:1px}
.contact-form .check{flex-direction:row;align-items:center;gap:8px}
.contact-form fieldset{border:1px solid var(--line);padding:10px 14px 4px;min-width:0}
.contact-form legend{font-size:13px;color:var(--muted);padding:0 6px}
.contact-form fieldset .check{display:flex;margin:0 0 8px}
.contact-form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.contact-form button{font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.14em;color:var(--bg);background:var(--brass);border:1px solid var(--brass);padding:12px 28px;cursor:pointer}
.contact-form button:hover{background:var(--ink);border-color:var(--ink)}

/* ---- 足もと ---- */
.foot{border-top:1px solid var(--line);background:var(--bg-2);font-size:12px;color:var(--faint)}
.foot .inner{padding-block:28px 36px}
.foot p{margin:4px 0}
.foot a{color:var(--muted);text-decoration:none;margin-right:6px}
.foot a:hover{color:var(--brass)}

@media (max-width:820px){
  .article-head.has-stage{grid-template-columns:1fr}
  .tonight{padding-block:64px 56px}
  .tonight-inner{grid-template-columns:1fr;gap:28px;text-align:center}
  .tonight-coin img{width:min(300px,78%)}
  .shelf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .showcase{height:56vh}
  .first-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .stats{gap:12px 36px}
  .stage{order:-1}
  .stage img{width:min(220px,64%)}
  h1{font-size:27px}
}
@media (max-width:480px){
  .lot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .shelf{aspect-ratio:4/4.6}
  .shelf-no{left:10px;top:10px;width:30px;height:30px;font-size:11px}
  .shelf-count{right:12px;top:18px;font-size:10px;letter-spacing:.1em}
  .shelf-coin{width:53%;top:40%}
  .shelf-count{top:13px;right:8px;padding:3px 5px}
  .shelf-cap{padding:20px 8px 12px}
  .shelf-name{padding:0;font-size:16px;letter-spacing:.1em}
  .shelf-name::before{width:18px;margin-bottom:7px}
  .shelf-note{margin-top:7px;font-size:10.5px;line-height:1.6}
  .brand-logo{height:68px}
  .brand-sub br.sp{display:inline}
  .btn{padding:12px 20px}
}

/* ===== 入口：地下への階段（scripts/descent.js） =====
   既定（スクリプトなし・動きを減らす設定）は、扉の向こうの部屋の静止画の上に見出しと入口を並べる。
   .is-live の時だけ、長いスクロールの間、画面に貼り付いた舞台でコマを進める */
.descent{position:relative;background:#000 var(--room) center/cover no-repeat;border-bottom:1px solid var(--line)}
.descent-stage{position:relative;overflow:hidden}
.descent-stage::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(120% 95% at 50% 50%,transparent 50%,rgba(0,0,0,.7) 100%)}
.descent-shade{position:absolute;inset:0;z-index:1;background:rgba(6,4,2,.6);pointer-events:none}
.descent-layer{position:relative;z-index:2}
.descent:not(.is-live) .descent-stage{display:grid;gap:40px;padding-block:72px;text-align:center}
.descent:not(.is-live) .descent-canvas,.descent:not(.is-live) .descent-whisper,.descent:not(.is-live) .descent-skip,
.descent:not(.is-live) .descent-depth,.descent:not(.is-live) .descent-cue{display:none}
.descent.is-live{height:1100vh;background:#000}
.descent.is-live .descent-stage{position:sticky;top:0;height:100vh;height:100dvh}
.descent-canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.descent.is-live .descent-shade{opacity:0}
.descent.is-live .descent-layer{position:absolute;inset:0;display:grid;place-items:center;text-align:center;pointer-events:none}
.descent.is-live .descent-whisper,.descent.is-live .descent-vault{opacity:0}
.descent-top{padding-inline:16px}
/* 見出しは階段の奥の闇の下あたり（画面の6割の高さ）に置き、英字の小見出しをそのすぐ上に添える（2026-11-01 取締役） */
.descent.is-live .descent-top{place-items:start center;align-content:start;padding-top:calc(61vh - 34px)}
.descent-top .hero-title{margin:0;text-shadow:0 2px 30px rgba(0,0,0,.95),0 0 8px rgba(0,0,0,.8)}
.descent-top .eyebrow{text-shadow:0 0 10px #000}
.descent-cue{position:absolute;left:50%;bottom:calc(26px + env(safe-area-inset-bottom,0px));width:1px;height:46px;background:linear-gradient(var(--brass),transparent);animation:drip 2.2s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
.descent-whisper p{margin:0;font-family:var(--display);font-size:clamp(18px,2.6vw,26px);letter-spacing:.12em;color:var(--ink);text-shadow:0 0 18px #000,0 0 40px #000,0 0 4px #000}
.descent-whisper small{display:block;font-family:var(--roman);font-size:11px;letter-spacing:.3em;color:var(--brass);margin-bottom:10px}
.descent-vault-inner{display:flex;flex-direction:column;align-items:center;width:100%;padding-inline:16px;text-align:center}
.descent-logo{display:block;width:min(680px,82vw);height:auto;margin-bottom:30px;filter:drop-shadow(0 0 24px rgba(214,176,106,.25)) drop-shadow(0 4px 18px rgba(0,0,0,.9))}
.descent-name{margin:0 0 26px;font-family:var(--display);font-weight:700;font-size:clamp(20px,2.4vw,30px);letter-spacing:.06em;color:var(--ink);text-shadow:0 2px 20px #000}
.descent-skip{position:absolute;z-index:3;top:16px;right:max(16px,env(safe-area-inset-right,0px));font-family:var(--roman);font-size:12px;letter-spacing:.2em;color:var(--muted);background:rgba(0,0,0,.35);border:1px solid var(--line);padding:5px 12px;cursor:pointer}
.descent-skip:hover{color:var(--brass);border-color:var(--brass)}
.descent-depth{position:absolute;z-index:3;right:max(16px,env(safe-area-inset-right,0px));top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;font-family:var(--roman);font-size:10px;letter-spacing:.2em;color:var(--muted)}
.descent-depth i{display:block;width:1px;height:140px;background:var(--line);position:relative}
.descent-depth b{position:absolute;left:-3px;top:0;width:7px;height:7px;border-radius:50%;background:var(--brass);box-shadow:0 0 10px var(--brass)}
/* ENTER：真鍮の銘板。二重の枠、四隅の菱形、灯りが横切る */
.enter{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:17px 54px;text-decoration:none;
  font-family:var(--roman);font-weight:700;font-size:15px;letter-spacing:.55em;text-indent:.55em;color:#E9CD8F;
  background:linear-gradient(180deg,rgba(60,42,20,.85),rgba(20,13,6,.9));border:1px solid var(--brass);
  box-shadow:inset 0 0 0 4px rgba(10,7,5,.9),inset 0 0 0 5px rgba(214,176,106,.55),0 0 24px rgba(233,205,143,.12);
  overflow:hidden;transition:color .4s,box-shadow .4s,letter-spacing .4s}
.enter::before,.enter::after{content:"";position:absolute;top:50%;width:7px;height:7px;background:var(--brass);transform:translateY(-50%) rotate(45deg)}
.enter::before{left:15px} .enter::after{right:15px}
.enter span{position:relative;z-index:1}
.enter span::after{content:"";position:absolute;top:-17px;bottom:-17px;left:-120%;width:60%;background:linear-gradient(100deg,transparent,rgba(255,236,190,.28),transparent);transform:skewX(-20deg);animation:sweep 5s ease-in-out infinite}
@keyframes sweep{0%,60%{left:-120%}100%{left:180%}}
.enter:hover{color:#FFF4DC;letter-spacing:.65em;box-shadow:inset 0 0 0 4px rgba(10,7,5,.9),inset 0 0 0 5px rgba(233,205,143,.9),0 0 36px rgba(233,205,143,.35)}
.enter:focus-visible,.descent-skip:focus-visible{outline:2px solid var(--brass);outline-offset:4px}
/* 門：入口の間は看板をロゴだけにして情景の上に重ね、店の中身（とフッター）は ENTER か SKIP まで見せない。
   中身を隠すのは階段が動いている時だけ（スクリプトが読めなかった時は、そのまま全部見える） */
html.gate .masthead{position:absolute;left:0;right:0;top:0;z-index:4;border-bottom:0;background:linear-gradient(rgba(6,4,2,.8),transparent);pointer-events:none}
html.gate .masthead .brand{pointer-events:auto}
html.gate .masthead .brand-sub,html.gate .masthead .sections{display:none}
html.gate:has(.descent.is-live) main > :not(#descent):not(script),html.gate:has(.descent.is-live) .foot{display:none}
html.gate .descent-skip{z-index:5}
html.entered #descent{display:none}
.descent-fade{position:fixed;inset:0;z-index:200;background:#000;opacity:0;pointer-events:none;transition:opacity .6s ease}
.descent-fade.on{opacity:1}
@media (max-width:820px){
  .descent-logo{width:min(400px,86vw);margin-bottom:22px}
  .descent-depth{display:none}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* ===== 店内トップのいちばん上：古代コインの地下倉庫の机（2026-11-02 取締役「以前のページをCodexが作った画像でブラッシュアップ」）=====
   背景は入口とつながる古びた地下倉庫の絵（Codexの内蔵image_genで作成、content\images\study\）。コインは実物写真を重ねる。
   机の絵の札は、下の「地下倉庫の棚」と同じ6つ（I〜VI）。札の場所は --x・--y（絵の幅・高さに対する割合）で決める */
.study{--gold:#d6bb83;--paper:#eee3cf;--night:#110e0b;margin:0;background:var(--night);color:var(--paper);font-family:"Yu Mincho","Hiragino Mincho ProN",serif}
.study a{color:inherit;text-decoration:none}
.study a:focus-visible{outline:2px solid #f3d092;outline-offset:6px}
.study .desk{position:relative;isolation:isolate;width:100%;aspect-ratio:1672/941;--top:0px;--h:100%}
.study .room{position:absolute;inset:0;width:100%;height:100%;z-index:-2}
.study .desk:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(#0008,transparent 28%,transparent 85%,#110e0b)}
.study .welcome{position:absolute;top:40%;left:28%;right:28%;transform:translateY(calc(-50% - clamp(20px,2.2vw,40px)));text-align:center;text-shadow:0 2px 18px #000} /* ランプの下と机の奥の縁の間の中ほどから、見出しの字の大きさ1つ分上（2026-11-02 取締役） */
.study .eyebrow{font:10px/1.8 system-ui;letter-spacing:.3em;color:var(--gold);margin:0 0 14px}
.study .study-title{font-size:clamp(20px,2.2vw,40px);font-weight:400;letter-spacing:.13em;margin:0}
.study .welcome .hint{font-size:12px;letter-spacing:.15em;margin-top:20px}
.study .real-coins{position:absolute;left:44%;top:71%;width:18%;display:flex;align-items:center;gap:8%}
.study .real-coins img{width:46%;height:auto;filter:drop-shadow(0 5px 6px #0008)}
/* 札：真鍮の丸い番号だけ（棚の名前は aria-label に持つ） */
.study .hotspot{position:absolute;left:calc(var(--x) * 100%);top:calc(var(--y) * 100%);transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;padding:8px;min-width:44px;min-height:44px;white-space:nowrap;isolation:isolate}
.study .spot-people{--x:.12;--y:.2}
.study .spot-terms{--x:.11;--y:.44}
.study .spot-periods{--x:.18;--y:.7}
.study .spot-coins{--x:.53;--y:.66}
.study .spot-places{--x:.82;--y:.66}
.study .spot-sources{--x:.78;--y:.26}
.study .pin{position:relative;z-index:2;display:grid;place-items:center;width:34px;height:34px;border:1px solid #bda372;border-radius:50%;color:#f5dfb0;background:radial-gradient(circle at 35% 25%,#79603a,#33271a 72%);box-shadow:inset 0 0 0 3px #352718,inset 0 0 0 4px #a98a5280,0 3px 8px #0009;font:12px Georgia,serif;letter-spacing:.02em;text-shadow:0 1px 2px #000;transition:box-shadow .2s ease}
.study .label{position:relative;margin-top:8px;padding:8px 18px;border:1px solid #9c7b46;border-radius:1px;color:#332615;background:repeating-linear-gradient(8deg,transparent 0 3px,#5e43100a 3px 4px),linear-gradient(110deg,#c5ab78,#e1c99b 47%,#b99b66);box-shadow:inset 0 0 0 3px #dec69a,inset 0 0 0 4px #886b4370,0 4px 9px #0008;font-size:14px;letter-spacing:.14em;text-shadow:0 1px #fff4;transition:transform .2s ease,box-shadow .2s ease}
.study .hotspot:hover .label,.study .hotspot:focus-visible .label{background:repeating-linear-gradient(8deg,transparent 0 3px,#5e43100a 3px 4px),linear-gradient(110deg,#dbc18d,#f0dbaf 47%,#c9ae79);transform:translateY(-2px);box-shadow:inset 0 0 0 3px #e5cea4,inset 0 0 0 4px #886b4370,0 6px 14px #0009}
.study .hotspot:hover .pin,.study .hotspot:focus-visible .pin{box-shadow:inset 0 0 0 3px #352718,inset 0 0 0 4px #a98a5280,0 0 16px #c7a56a66}
@media(min-width:1800px){.study .desk{max-width:1800px;margin:auto}}
/* スマホ：見出しは絵の上の帯に出し、札の番号は少し小さく */
@media(max-width:700px){.study .desk{--top:96px;--h:calc(100vw * 941 / 1672);aspect-ratio:auto;height:calc(var(--top) + var(--h))}
.study .room{top:var(--top);height:var(--h)}
.study .desk:before{top:var(--top);height:var(--h);bottom:auto}
.study .welcome{left:0;right:0;top:0;height:96px;margin:0;padding:16px 10px 0}
.study .study-title{font-size:20px;letter-spacing:.08em}
.study .welcome .eyebrow{font-size:8px;margin-bottom:6px}
.study .welcome .hint{font-size:10px;margin-top:9px}
.study .hotspot{top:calc(var(--top) + var(--h) * var(--y));padding:6px;min-height:36px;justify-content:center}
.study .pin{width:28px;height:28px;font-size:10px}
.study .real-coins{top:calc(var(--top) + var(--h) * .72)}}
@media(prefers-reduced-motion:reduce){.study .label,.study .pin{transition:none}
.study .hotspot:hover .label,.study .hotspot:focus-visible .label{transform:none}}
/* ===== トップ：机の絵をいちばん上まで広げ、店の帯（ロゴ）を絵の上に重ねる。棚の名前は MENU の中へ（2026-11-02 取締役） ===== */
.masthead.is-home{position:absolute;left:0;right:0;top:0;z-index:5;border-bottom:0;background:linear-gradient(rgba(8,6,4,.78),rgba(8,6,4,.35) 60%,transparent)}
.masthead.is-home .masthead-inner{flex-wrap:nowrap}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;padding:10px 16px;border:1px solid #9c7b4699;color:#e8d3a6;background:#110d0acc;font:12px/1 var(--display);letter-spacing:.3em;min-height:44px}
.menu summary::-webkit-details-marker{display:none}
.menu summary:before{content:"";width:16px;height:9px;border-top:1px solid currentColor;border-bottom:1px solid currentColor;background:linear-gradient(currentColor,currentColor) center/100% 1px no-repeat}
.menu summary:hover,.menu[open] summary{border-color:#c0a16a;color:#f5dfb0}
.menu summary:focus-visible{outline:2px solid #f3d092;outline-offset:4px}
.menu-panel{position:absolute;right:0;top:calc(100% + 8px);z-index:6;width:min(340px,calc(100vw - 32px));max-height:calc(100dvh - 120px);overflow:auto;padding:10px 0;border:1px solid #80663f99;background:#110d0af5;box-shadow:0 12px 28px #000a}
.menu .sections{display:flex;flex-direction:column;flex-wrap:nowrap;gap:0}
.menu .sections a{padding:12px 22px;border-bottom:0;color:#e2d4bb;font-size:14px;letter-spacing:.12em;white-space:nowrap}
.menu .sections a:hover,.menu .sections a:focus-visible{color:var(--brass);background:#2a20168c}
html.gate .masthead .menu{display:none}
@media (max-width:700px){
  .masthead.is-home .masthead-inner{padding-block:10px}
  .masthead.is-home .brand-logo{height:46px}
  .masthead.is-home .brand-sub{display:none}
  .menu summary{padding:8px 12px;font-size:11px;letter-spacing:.24em}
  .study .desk{--top:150px}
  .study .welcome{top:62px;height:88px;padding-top:6px;transform:none}
}
/* 机の敷布の上の新着のコイン（表と裏）。押すとそのコインのページへ（2026-11-02 取締役） */
.study a.real-coins{text-decoration:none}
.study .real-coins img{border-radius:50%;transition:transform .3s ease,filter .3s ease}
.study a.real-coins:hover img,.study a.real-coins:focus-visible img{transform:translateY(-3px);filter:drop-shadow(0 8px 10px #000a)}
.study .new-tag{position:absolute;left:-50%;right:-50%;top:100%;white-space:nowrap;margin-top:6px;text-align:center;font:10px/1 system-ui;letter-spacing:.28em;color:var(--gold);text-shadow:0 1px 3px #000}
@media (max-width:700px){.study .new-tag{margin-top:3px;font-size:8px;letter-spacing:.2em}}
@media(prefers-reduced-motion:reduce){.study .real-coins img{transition:none}.study a.real-coins:hover img{transform:none}}
/* 店内トップ：棚から下の段の背景をそろえる（2026-11-02 取締役「背景色がバラバラ」）。
   段ごとの塗り・光・上下の線をやめ、机の絵の暗がりと同じ地の色で続ける。段の間は真鍮色の細い線1本だけ */
#vault > section{position:relative;background:none;border-top:0;border-bottom:0}
#vault > section + section::before{content:"";position:absolute;top:0;left:50%;width:min(1100px,88%);height:1px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,#80663f80 18%,#80663f80 82%,transparent)}

/* 資料概要と新着を一つの閲覧エリアに統合 */
#vault .reading-room{padding:72px 0;border-top:1px solid #8b704033;border-bottom:1px solid #8b704033}
#vault .reading-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.35fr);gap:56px;align-items:start}
#vault .reading-room .archive,#vault .reading-room .news{padding:0;border:0;background:none}
#vault .reading-room .archive::before,#vault .reading-room .archive::after,#vault .reading-room .news::before,#vault .reading-room .news::after{display:none}
#vault .reading-room .inner .inner{width:100%;max-width:none;margin:0;padding:0}
#vault .reading-room .archive-content{padding:0}
#vault .reading-room .archive h2{font-size:27px;line-height:1.65;max-width:13em;margin-bottom:26px}
#vault .reading-room .archive .stats{grid-template-columns:1fr 1fr;margin-bottom:20px;padding:18px 0;row-gap:16px}
#vault .reading-room .archive .stats>div:last-child{grid-column:1 / -1;border:0;border-top:1px solid #9c804326;padding:14px 0 0;flex-direction:row;align-items:baseline;gap:15px}
#vault .reading-room .archive .stats>div:last-child dt{order:0;margin:0}
#vault .reading-room .archive .stats time{font-size:16px}
#vault .reading-room .archive .marks-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-bottom:24px}
#vault .reading-room .archive-links{gap:12px;font-size:11px}
#vault .reading-room .news{border-left:1px solid #9c80433b;padding-left:36px}
#vault .reading-room .news .sec-head{margin-bottom:18px;align-items:end}
#vault .reading-room .news h2{font-size:23px;font-weight:400;letter-spacing:.1em}
#vault .reading-room .news .eyebrow{font-size:10px;letter-spacing:.25em;margin-bottom:16px;color:#ab946b}
#vault .reading-room .news-list{display:block;margin:0}
#vault .reading-room .news-list li{border-bottom:1px solid #9c80432e}
#vault .reading-room .news-list a{display:grid;grid-template-columns:auto 1fr;gap:7px 14px;padding:15px 0;border:0}
#vault .reading-room .news-title{grid-column:1 / -1;font-size:14px;font-weight:400;line-height:1.7;letter-spacing:.03em}
#vault .reading-room .news-list time,#vault .reading-room .news-shelf{font-size:10px;color:#a18e6e}
#vault .reading-room .news-list a:hover .news-title{color:#e1c89b}
@media(max-width:760px){#vault .reading-room{padding:44px 0}#vault .reading-layout{grid-template-columns:1fr;gap:34px}#vault .reading-room .archive h2{max-width:none;font-size:24px}#vault .reading-room .news{padding:28px 0 0;border-left:0;border-top:1px solid #9c804345}#vault .reading-room .archive .stats{grid-template-columns:1fr 1fr 1.4fr}#vault .reading-room .archive .stats>div:last-child{grid-column:auto;border-top:0;border-left:1px solid #9c80432b;padding:0 0 0 12px;flex-direction:column;gap:0}#vault .reading-room .archive .stats>div:last-child dt{order:2;margin-top:10px}#vault .reading-room .archive .stats time{font-size:16px}}

/* 新着の一枚：表裏を並べた収蔵展示 */
#vault .arrival{padding:76px 0}
#vault .arrival .tonight-inner{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:52px;text-align:left}
.arrival-tray{position:relative;margin:0;padding:66px 28px 34px;border:1px solid #86704766;background:radial-gradient(ellipse at 48% 35%,#302b24,#181713 65%,#11100e);box-shadow:inset 0 0 0 8px #18150f,inset 0 0 0 9px #9c804329}
.arrival-inventory{position:absolute;top:24px;left:28px;font:11px var(--roman);letter-spacing:.22em;color:#ad9870}
.arrival-faces{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center}
.arrival-faces>div{text-align:center;min-width:0}
.arrival-faces img{width:100%;height:auto;display:block;filter:drop-shadow(0 12px 10px #0009)}
.arrival-faces>div>span{display:block;margin-top:24px;color:#a8997e;font-size:9px;letter-spacing:.15em}
#vault .arrival .eyebrow{font-size:10px;letter-spacing:.25em;color:#b39b70;margin:0 0 14px}
.arrival-kicker{font-family:var(--display);font-size:13px;letter-spacing:.13em;color:#b3a58c;margin:0 0 25px}
#vault .arrival .tonight-text h2{font-weight:400;font-size:clamp(22px,2.2vw,29px);line-height:1.85;letter-spacing:.05em;margin:0 0 32px}
.arrival-link{display:flex;align-items:center;justify-content:space-between;gap:24px;max-width:290px;padding:14px 0;border-top:1px solid #ad8c4e66;border-bottom:1px solid #ad8c4e66;text-decoration:none;font-size:12px;letter-spacing:.08em;color:#d6c7aa}
.arrival-link span{font-size:20px;color:#bda577}.arrival-link:hover{color:#f4e7cb;border-color:#c4a772}
@media(max-width:760px){#vault .arrival{padding:48px 0}#vault .arrival .tonight-inner{grid-template-columns:1fr;gap:30px}.arrival-tray{padding:54px 23px 25px}.arrival-faces{gap:18px}.arrival-faces>div>span{margin-top:18px}.arrival-inventory{top:20px;left:24px}#vault .arrival .tonight-text h2{font-size:23px;margin-bottom:24px}.arrival-kicker{margin-bottom:18px}.arrival-link{max-width:none}}

/* 地下倉庫の案内：ページを静かに締めるフッター */
.foot{background:linear-gradient(115deg,#191610,#100e0b 65%);border-top:1px solid #826c434d}
.foot .inner{padding-block:58px 24px}
.foot-main{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:60px;padding-bottom:46px}
.foot .foot-logo{display:block;width:208px;margin:0 0 16px}
.foot-logo img{display:block;width:100%;height:auto;opacity:.85}
.foot-identity p{font-family:var(--display);font-size:14px;letter-spacing:.16em;color:#c5b99e;margin:0 0 10px}
.foot-identity>span{font-size:11px;color:#9b907b;letter-spacing:.08em}
.foot-group h2{font-size:11px;font-weight:400;letter-spacing:.1em;color:#aa9570;margin:8px 0 22px;padding-bottom:13px;border-bottom:1px solid #826c433d}
.foot .foot-group a{display:flex;align-items:center;justify-content:space-between;min-height:37px;margin:0;color:#c2b7a3;font-size:12px}
.foot-group a span{color:#a58b5c}
.foot .foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid #826c433d;padding-top:23px}
.foot-bottom small{font-family:var(--roman);font-size:10px;letter-spacing:.12em;color:#8f826b}
.foot-bottom nav{display:flex;flex-wrap:wrap;gap:12px 26px}
.foot .foot-bottom a{font-size:10px;margin:0;color:#a69a85;line-height:1.9}
.foot a:hover{color:#e5d1ab}.foot a:focus-visible{outline:1px solid #c6a66e;outline-offset:5px}
@media(max-width:760px){.foot .inner{padding-block:38px 24px}.foot-main{grid-template-columns:1fr 1fr;gap:28px 24px;padding-bottom:30px}.foot-identity{grid-column:1/-1}.foot .foot-logo{width:180px;margin-bottom:12px}.foot-group h2{font-size:10px;margin-bottom:12px}.foot .foot-group a{min-height:42px;font-size:11px}.foot .foot-bottom{align-items:flex-start;flex-direction:column;gap:18px}.foot-bottom nav{flex-direction:column;gap:9px}.foot-bottom small{order:2}}