:root{
  --ink:#0b0b0e; --ink-2:#12121a; --ink-3:#1b1b25;
  --paper:#efe9df; --paper-dim:#a9a29a; --line:#2a2a36;
  --seal:#c73e3a; --gold:#c9a227;
  --serif:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",serif;
  --sans:"Hiragino Sans","Noto Sans JP",system-ui,sans-serif;
}
*{box-sizing:border-box;min-width:0}
html{scroll-behavior:smooth}
html,body{max-width:100%;overflow-x:hidden}
body{margin:0;background:var(--ink);color:var(--paper);font-family:var(--sans);
  -webkit-font-smoothing:antialiased;line-height:1.9}
a{color:inherit;text-decoration:none}
.wrap{max-width:960px;margin:0 auto;padding:0 22px}

/* 和紙の粒子 */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.035;
  background-image:radial-gradient(#fff 1px,transparent 1px);background-size:3px 3px}

/* ヘッダ */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;
  justify-content:space-between;padding:14px 22px;
  background:linear-gradient(to bottom,rgba(11,11,14,.92),rgba(11,11,14,0));backdrop-filter:blur(6px)}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);letter-spacing:.18em;font-size:15px}
.seal{width:30px;height:30px;border-radius:5px;background:var(--seal);color:#fff;display:grid;place-items:center;
  font-family:var(--serif);font-size:17px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.22)}
.navr{display:flex;align-items:center;gap:10px}
.nav a.lang{font-size:11px;letter-spacing:.16em;color:var(--paper-dim);border-bottom:1px solid var(--line);padding-bottom:2px}
.nav a.lang:hover{color:var(--paper)}
.nav a.tt{font-size:12px;letter-spacing:.12em;color:var(--paper-dim);border:1px solid var(--line);
  padding:7px 13px;border-radius:99px;transition:.25s;white-space:nowrap}
@media(max-width:560px){.nav a.tt{font-size:0;padding:8px 11px}.nav a.tt::after{content:"TikTok";font-size:11px}}
.nav a.tt:hover{color:var(--paper);border-color:var(--paper-dim)}

/* ヒーロー */
.hero{position:relative;min-height:100svh;display:grid;align-items:end;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.92) contrast(1.03)}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to top,var(--ink) 4%,rgba(11,11,14,.55) 45%,rgba(11,11,14,.25) 100%)}
.hero-in{position:relative;z-index:2;padding:0 22px 12svh;max-width:960px;margin:0 auto;width:100%;overflow:hidden}
.eyebrow{font-size:11px;letter-spacing:.26em;color:var(--paper-dim);margin-bottom:14px;overflow-wrap:anywhere}
.eyebrow b{color:var(--accent,var(--gold));font-weight:400}
.hero h1{font-family:var(--serif);font-size:clamp(44px,10.5vw,104px);line-height:1.04;margin:0 0 16px;
  letter-spacing:.03em;font-weight:400;overflow-wrap:anywhere}
.hero .lead{font-family:var(--serif);font-size:clamp(15px,2.4vw,20px);color:#ded6ca;max-width:34em;width:100%;margin:0 0 26px;overflow-wrap:anywhere;line-break:strict}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 24px;border-radius:99px;font-size:14px;
  letter-spacing:.08em;background:var(--accent,var(--seal));color:#0b0b0e;font-weight:600;transition:.25s;
  margin:0 8px 10px 0;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--paper);border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--paper-dim)}
.scroll{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  font-size:10px;letter-spacing:.3em;color:var(--paper-dim);writing-mode:vertical-rl;
  animation:bob 2.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* セクション */
section{position:relative;z-index:2;padding:82px 0}
.sec-h{display:flex;align-items:baseline;gap:16px;margin-bottom:34px}
.sec-h h2{font-family:var(--serif);font-size:26px;letter-spacing:.16em;margin:0;font-weight:400}
.sec-h span{font-size:11px;letter-spacing:.26em;color:var(--paper-dim)}
.rule{height:1px;background:linear-gradient(to right,var(--line),transparent);margin-bottom:34px}

/* 棚 */
.gyou{margin-bottom:38px}
.gyou-h{font-family:var(--serif);font-size:13px;letter-spacing:.3em;color:var(--paper-dim);margin-bottom:13px}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;width:100%}
@media(min-width:560px){.tiles{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(min-width:860px){.tiles{grid-template-columns:repeat(8,minmax(0,1fr))}}
.tile{position:relative;aspect-ratio:3/4;border-radius:9px;overflow:hidden;border:1px solid var(--line);
  display:grid;place-items:center;background:var(--ink-2);transition:.3s}
.tile.done{border-color:transparent}
.tile.done img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(.85) brightness(.68);transition:.4s}
.tile.done:hover img{filter:saturate(1) brightness(.86);transform:scale(1.05)}
.tile.done::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,11,14,.85),transparent 62%)}
.tile .kanji{position:relative;z-index:2;font-family:var(--serif);font-size:22px;letter-spacing:.02em;
  writing-mode:horizontal-tb;text-align:center;padding:0 4px}
.tile.done .kanji{position:absolute;bottom:8px;left:0;right:0;text-align:center;font-size:18px;
  text-shadow:0 2px 8px rgba(0,0,0,.85)}
.tile.todo{opacity:.3}
.tile.todo .kanji{color:var(--paper-dim)}
.tile.todo::before{content:"";position:absolute;width:46px;height:46px;border:1px solid var(--line);
  border-radius:5px;opacity:.5}
.tile.done .dot{position:absolute;top:8px;right:8px;z-index:3;width:7px;height:7px;border-radius:50%;
  background:var(--seal);box-shadow:0 0 0 3px rgba(199,62,58,.2)}

/* 曲ページ */
.song-hero{position:relative;min-height:74svh;display:grid;align-items:end;overflow:hidden}
.meta{display:flex;gap:20px;flex-wrap:wrap;font-size:12px;color:var(--paper-dim);letter-spacing:.1em;margin-bottom:18px}
.player .lbl{font-size:11px;letter-spacing:.22em;color:var(--paper-dim);margin-bottom:11px}
.player audio{width:100%;height:38px}
.cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px}
@media(max-width:760px){.cols{grid-template-columns:1fr;gap:34px}}
.lyrics{font-family:var(--serif);font-size:17px;line-height:2.5;white-space:pre-wrap}
.lyrics .tag{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.28em;
  color:var(--accent,var(--gold));margin:22px 0 5px;opacity:.85}
.lyrics .tag:first-child{margin-top:0}
.lyrics details{display:inline}
.lyrics summary{display:inline;list-style:none;cursor:pointer;position:relative;
  border-bottom:1px dotted var(--accent,var(--gold));padding-bottom:1px}
.lyrics summary::-webkit-details-marker{display:none}
.lyrics summary::after{content:"›";display:inline-block;margin-left:7px;font-size:12px;
  color:var(--accent,var(--gold));transform:translateY(-1px);transition:transform .2s}
.lyrics details[open] summary::after{transform:rotate(90deg) translateX(-1px)}
.ann{display:block;font-family:var(--sans);font-size:13px;line-height:1.95;color:#c4bcb2;
  background:var(--ink-2);border-left:2px solid var(--accent,var(--seal));
  border-radius:0 8px 8px 0;padding:13px 15px;margin:10px 0 18px}
.lyrics .hint{display:block;font-family:var(--sans);font-size:11px;letter-spacing:.14em;
  color:var(--paper-dim);margin-bottom:18px}
.fact{border-left:2px solid var(--accent,var(--seal));padding:2px 0 2px 15px;margin-bottom:19px;font-size:14.5px;color:#ded6ca}
.fact .src{display:block;font-size:11px;color:var(--paper-dim);margin-top:5px;letter-spacing:.05em}
.fact .src a{border-bottom:1px solid var(--line)}
.note{font-size:14.5px;color:#ded6ca}
.note strong{color:var(--paper);font-weight:600}
.mv{position:relative;border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#000;
  max-width:392px;margin:0 auto 16px}
.mv video{display:block;width:100%;aspect-ratio:9/16;background:#000}
.media-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 auto 11px;max-width:392px}
.media-h .lbl{font-size:11px;letter-spacing:.22em;color:var(--paper-dim)}
.media-h a{font-size:11px;letter-spacing:.1em;color:var(--paper-dim);border-bottom:1px solid var(--line)}
.media-h a:hover{color:var(--paper)}
.player{background:var(--ink-2);border:1px solid var(--line);border-radius:13px;padding:19px 21px;
  margin:0 auto 26px;max-width:392px}
.tt-embed{display:flex;justify-content:center;margin:8px 0}
.pager{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:26px;margin-top:60px;font-size:13px}
.pager span{color:var(--paper-dim)}
.next{border:1px solid var(--line);border-radius:14px;padding:30px 26px;background:
  linear-gradient(180deg,rgba(201,162,39,.05),transparent)}
.next h3{font-family:var(--serif);font-size:20px;letter-spacing:.1em;margin:0 0 12px;font-weight:400}
.next p{margin:0 0 8px;font-size:14.5px;color:#ded6ca}
.next .flags{display:flex;gap:9px;margin-top:16px;flex-wrap:wrap}
.next .flags span{font-size:11px;letter-spacing:.14em;color:var(--paper-dim);
  border:1px solid var(--line);border-radius:99px;padding:6px 13px}
.count{font-family:var(--serif);color:var(--gold)}
footer{border-top:1px solid var(--line);padding:44px 0 60px;color:var(--paper-dim);font-size:12.5px}
footer a{border-bottom:1px solid var(--line)}
.up{display:inline-block;margin-bottom:22px;font-size:12px;letter-spacing:.16em;color:var(--paper-dim)}