:root{--bg:#f3f4f9;--surface:#fff;--ink:#12172b;--muted:#5b6379;--line:#dde0ec;--accent:#2a3a9b;--accent-ink:#fff;--soft:#e7eafb;--tint:#f7f8fd;
--f-ui:"Zen Kaku Gothic New",system-ui,-apple-system,"Segoe UI",sans-serif;--f-jp:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;--f-mono:"DM Mono",ui-monospace,Menlo,monospace}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0e1220;--surface:#161b2e;--ink:#e8ebf6;--muted:#98a0b8;--line:#272e47;--accent:#93a3ff;--accent-ink:#0e1220;--soft:#1d2444;--tint:#121728;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0e1220;--surface:#161b2e;--ink:#e8ebf6;--muted:#98a0b8;--line:#272e47;--accent:#93a3ff;--accent-ink:#0e1220;--soft:#1d2444;--tint:#121728;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-ui);font-size:16px;line-height:1.6}
a{color:var(--accent)}
.wrap{max-width:52rem;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.top{border-bottom:1px solid var(--line);background:var(--bg)}
.top .wrap{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;padding-block:12px}
.brand{font-family:var(--f-jp);font-weight:700;font-size:1.2rem;text-decoration:none;color:var(--ink)}
.brand{display:inline-flex;align-items:center;gap:8px}.brand .logo{width:34px;height:34px;border-radius:9px}
.brand small{font-size:.75rem;color:var(--muted);margin-left:6px}
.top nav{display:flex;gap:14px;flex-wrap:wrap;font-size:.92rem}
.top nav a{text-decoration:none;color:var(--muted)}.top nav a:hover{color:var(--accent)}
main.wrap{padding-block:24px 48px;display:grid;gap:22px}
.crumb{font-size:.8rem;color:var(--muted)}.crumb a{color:var(--muted)}
h1{margin:0;font-size:clamp(1.5rem,4vw,2.1rem);line-height:1.3;text-wrap:balance}
h2{margin:0 0 6px;font-size:1.05rem}
.cap{font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
.hero{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;align-items:center}
.big{font-family:var(--f-jp);font-size:clamp(4.5rem,16vw,7rem);line-height:1;font-weight:700}
.meaning{font-size:1.15rem}
.facts{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.9rem;color:var(--muted)}
.rd{display:grid;grid-template-columns:3.2rem minmax(0,1fr);gap:4px 10px;font-family:var(--f-jp);font-size:1.1rem}
.rd span:nth-child(odd){font-family:var(--f-ui);font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);padding-top:5px}
.tip{margin:0;padding:10px 14px;border-left:3px solid var(--accent);background:var(--tint);border-radius:0 8px 8px 0}
.box{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;display:grid;gap:10px;min-width:0}
.words{display:grid;grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));gap:8px}
.word{display:grid;gap:0;padding:8px 10px;border:1px solid var(--line);border-radius:10px;background:var(--tint)}
.word b{font-family:var(--f-jp);font-size:1.2rem}.word i{font-style:normal;font-size:.85rem;color:var(--muted)}.word span{font-size:.85rem}
.sent{display:grid;gap:2px;padding-block:6px;border-bottom:1px dashed var(--line)}.sent:last-child{border-bottom:0}
.jp{font-family:var(--f-jp);font-size:1.25rem;line-height:2.1;margin:0;overflow-wrap:anywhere}
.jp rt{font-family:var(--f-ui);font-size:.5em;color:var(--muted)}
.en{margin:0;color:var(--muted);font-size:.93rem}
.strokes{display:flex;flex-wrap:wrap;gap:8px}
.strokes svg{width:220px;max-width:100%;height:auto;aspect-ratio:1;background:var(--tint);border:1px solid var(--line);border-radius:10px}
.strokes path{fill:none;stroke:var(--ink);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.strokes text{fill:var(--accent);font-size:8px;font-family:var(--f-mono)}
.cta{display:inline-block;justify-self:start;padding:10px 20px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-weight:700;text-decoration:none}
.pn{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.92rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(3.2rem,1fr));gap:6px}
.grid a{display:grid;place-items:center;aspect-ratio:1;max-width:100%;font-family:var(--f-jp);font-size:1.5rem;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:8px}
.grid a:hover{border-color:var(--accent);color:var(--accent)}
.list{display:grid;gap:6px;margin:0;padding:0;list-style:none}
.list a{display:flex;gap:10px;flex-wrap:wrap;text-decoration:none;color:var(--ink);padding:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.list a b{font-family:var(--f-jp)}.list a span{color:var(--muted);font-size:.9rem}
.para{display:grid;gap:4px}
footer{border-top:1px solid var(--line);font-size:.75rem;color:var(--muted)}footer .wrap{padding-block:16px 28px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:480px){.hero{grid-template-columns:1fr}}