:root{--bg:#f7f8fa;--card:#fff;--ink:#1b2430;--muted:#5b6675;--line:#e3e7ec;--brand:#1f5fbf;--brand-ink:#fff;--brand-soft:#e8f0fc;--ok:#1e7a46;--ok-soft:#e6f4ec;--warn-soft:#fff4d6}
@media (prefers-color-scheme: dark){:root{--bg:#11151b;--card:#1a2029;--ink:#e7ebf0;--muted:#9aa5b4;--line:#2c3440;--brand:#6aa1ff;--brand-ink:#0b1220;--brand-soft:#1d2b44;--ok:#5cc98a;--ok-soft:#173326;--warn-soft:#3a2f12}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}.narrow{max-width:760px}
header.site{border-bottom:1px solid var(--line);background:var(--card)}
header.site .wrap{min-height:56px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.logo{font-weight:700;text-decoration:none;color:var(--ink);white-space:nowrap}.logo span{color:var(--brand)}
nav.top{margin-left:auto;display:flex;gap:16px;font-size:.95rem;flex-wrap:wrap}nav.top a{color:var(--ink);text-decoration:none}nav.top a:hover{color:var(--brand)}
main{padding:28px 0 56px}
h1{font-size:2rem;line-height:1.2;margin:.2em 0 .3em}h2{font-size:1.4rem;margin:1.8em 0 .5em}h3{font-size:1.05rem;margin:0 0 .3em}
a{color:var(--brand)}.muted{color:var(--muted)}
.btn{display:inline-block;border:0;border-radius:10px;padding:13px 22px;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;text-align:center}
.btn-primary{background:var(--brand);color:var(--brand-ink)}.btn-ghost{border:1px solid var(--line);color:var(--ink);background:var(--card)}
.btn.disabled,.btn[aria-disabled=true]{opacity:.5;cursor:not-allowed}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.hero{display:grid;gap:28px;grid-template-columns:1.15fr .85fr;align-items:center}
@media (max-width:820px){.hero{grid-template-columns:1fr}}
.price{font-size:2.4rem;font-weight:800}.price small{font-size:1rem;font-weight:600;color:var(--muted)}
ul.check{list-style:none;padding:0;margin:10px 0}ul.check li{padding:4px 0 4px 26px;position:relative}ul.check li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.shot{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:top;border:1px solid var(--line);border-radius:12px;display:block;background:var(--card)}
.shots{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
figure{margin:0}figcaption{font-size:.88rem;color:var(--muted);margin-top:6px}
table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{padding:9px 8px;border-bottom:1px solid var(--line);text-align:left}td.n,th.n{text-align:right}
details{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:12px 16px;margin:8px 0}summary{font-weight:600;cursor:pointer}
.notice{background:var(--warn-soft);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:.92rem}
.buy-note{font-size:.88rem;color:var(--muted);margin-top:8px}
input.key{width:100%;font:inherit;font-family:ui-monospace,Menlo,Consolas,monospace;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink)}
.err{color:#b3261e;font-weight:600}@media (prefers-color-scheme: dark){.err{color:#ff8a80}}
footer.site{border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;padding:20px 0 40px}
footer.site a{color:var(--muted)}