:root{--bg:#fff;--fg:#111827;--muted:#6b7280;--accent:#5b3df5;--accent2:#b18cff;--card:#f5f3ff;--line:#e5e7eb}
@media (prefers-color-scheme:dark){:root{--bg:#0f0f14;--fg:#f3f4f6;--muted:#9ca3af;--card:#1b1830;--line:#2a2a3a}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;line-height:1.75;font-size:16px}
a{color:var(--accent)}header{border-bottom:1px solid var(--line)}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
nav{display:flex;align-items:center;justify-content:space-between;height:60px}
nav .brand{font-weight:800;font-size:20px;letter-spacing:.02em;color:var(--fg);text-decoration:none}
nav .links a{margin-left:16px;font-size:14px;color:var(--muted);text-decoration:none}
main{padding:32px 0 56px}h1{font-size:28px;line-height:1.35;margin:0 0 8px}h2{font-size:20px;margin:36px 0 8px;padding-top:8px;border-top:1px solid var(--line)}h3{font-size:16px;margin:20px 0 4px}
p,li{margin:0 0 10px}.lead{color:var(--muted);font-size:17px;margin-bottom:20px}
.hero{padding:40px 0 24px}.hero h1{font-size:34px}.hero .tag{display:inline-block;background:var(--card);color:var(--accent);font-weight:700;font-size:13px;padding:4px 10px;border-radius:999px;margin-bottom:14px}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:12px;margin:6px 8px 6px 0}
.btn.secondary{background:var(--card);color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:20px 0}
.card{background:var(--card);border-radius:14px;padding:16px}.card h3{margin:0 0 6px;font-size:16px}.card p{margin:0;font-size:14px;color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0 16px}th,td{text-align:left;vertical-align:top;padding:8px 6px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600;white-space:nowrap}
dl{margin:0}dt{font-weight:700;margin-top:12px}dd{margin:0 0 0 0;color:var(--fg)}
.note{background:var(--card);border-radius:12px;padding:12px 14px;font-size:14px;margin:12px 0}
footer{border-top:1px solid var(--line);padding:24px 0 40px;font-size:13px;color:var(--muted)}footer a{color:var(--muted);margin-right:14px}
.updated{color:var(--muted);font-size:13px;margin-bottom:20px}