:root{color-scheme:light}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;background:#f8fafc;color:#334155;line-height:1.8;font-size:16px}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
main.wrap{padding-top:20px;padding-bottom:48px}
.site-header{background:#fff;border-bottom:2px solid #2563eb;padding:12px 0}
.brand{font-weight:700;color:#0f172a;text-decoration:none;font-size:1.05rem}
.brand-sub{margin-left:10px;font-size:.8rem;color:#64748b}
h1{font-size:1.45rem;line-height:1.5;color:#0f172a;margin:12px 0 16px}
h2{font-size:1.12rem;color:#0f172a;margin:36px 0 10px;border-left:4px solid #2563eb;padding-left:10px}
h3{font-size:1rem;color:#0f172a;margin:20px 0 4px}
a{color:#2563eb}
.crumbs{font-size:.8rem;color:#64748b}
.crumbs a{color:#64748b}
.muted{font-size:.85rem;color:#64748b}
.answer{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:14px 16px;margin:12px 0}
.answer p{margin:4px 0}
.alert{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;border-radius:10px;padding:14px 16px;margin:12px 0}
table{border-collapse:collapse;width:100%;margin:8px 0;font-size:.93rem;background:#fff}
th,td{border:1px solid #e2e8f0;padding:8px 10px;text-align:left;vertical-align:top}
th{background:#f1f5f9;white-space:nowrap}
.code{margin-left:6px;font-size:.78rem;color:#94a3b8}
.cta{background:#fff;border:1px solid #cbd5e1;border-radius:12px;padding:18px 16px;margin:36px 0}
.cta-title{font-weight:700;color:#0f172a;font-size:1.05rem}
.cta p{margin:6px 0 12px;font-size:.93rem}
.cta-btns{display:flex;flex-wrap:wrap;gap:8px}
.cta .cta-more{margin:12px 0 0;font-size:.85rem}
.btn{display:inline-block;background:#2563eb;color:#fff;text-decoration:none;font-weight:700;padding:10px 18px;border-radius:999px;font-size:.93rem}
.btn-dark{background:#0f172a}
.chips,.months{list-style:none;padding:0;margin:8px 0;display:flex;flex-wrap:wrap;gap:8px}
.chips a,.months a{display:inline-block;background:#fff;border:1px solid #cbd5e1;border-radius:999px;padding:4px 12px;font-size:.88rem;text-decoration:none;color:#0f172a}
.chips a span{margin-left:6px;color:#94a3b8;font-size:.76rem}
.months a.on{background:#2563eb;border-color:#2563eb;color:#fff}
.months .off{display:inline-block;border:1px dashed #e2e8f0;border-radius:999px;padding:4px 12px;font-size:.88rem;color:#cbd5e1}
input[type=search]{width:100%;padding:10px 12px;font-size:1rem;border:1px solid #cbd5e1;border-radius:8px;margin:4px 0 8px}
.site-footer{border-top:1px solid #e2e8f0;background:#fff;padding:20px 0 32px;font-size:.8rem;color:#64748b}
.site-footer p{margin:6px 0}
@media(max-width:520px){h1{font-size:1.25rem}table{font-size:.86rem}th,td{padding:7px 8px}}