:root{--bg:#f7f8f6;--surface:#fff;--text:#1c2321;--muted:#5b6662;--line:#d9ded9;--brand:#0f6e56;--brand-strong:#0b503f;--brand-soft:#e3f1ec;--accent:#c2410c;--accent-soft:#fdebe0;--warn-1:#fff;--warn-2:#fff59d;--warn-3:#ff9800;--warn-4:#e53935;--warn-5:#4a148c;--radius:10px;--shadow:0 1px 2px #0000000f, 0 4px 16px #0000000a;--max:960px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#131816;--surface:#1c2321;--text:#eef2ef;--muted:#a5b0aa;--line:#2f3a35;--brand:#4fc3a1;--brand-strong:#7ad7bd;--brand-soft:#1a2e27;--accent:#fb923c;--accent-soft:#3a2415;--shadow:none}}:root[data-theme=dark]{--bg:#131816;--surface:#1c2321;--text:#eef2ef;--muted:#a5b0aa;--line:#2f3a35;--brand:#4fc3a1;--brand-strong:#7ad7bd;--brand-soft:#1a2e27;--accent:#fb923c;--accent-soft:#3a2415;--shadow:none}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);margin:0;font-family:Noto Sans JP,Hiragino Sans,Yu Gothic 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.mark{background:var(--brand);border-radius:7px;width:28px;height:28px;display:inline-block;position:relative}.brand .mark:after{content:"";background:#fff;border-radius:3px;position:absolute;inset:8px}.nav{flex-wrap:wrap;gap:.25rem;display:flex}.nav a{color:var(--text);border-radius:6px;padding:.4rem .6rem;font-size:.95rem;text-decoration:none}.nav a:hover,.nav a[aria-current=page]{background:var(--brand-soft);color:var(--brand-strong)}main{padding:1.5rem 0 3rem}.lead{color:var(--muted);margin-bottom:1.5rem;font-size:1.05rem}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}.card+.card{margin-top:1rem}.grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;display:grid}.card h3{margin-top:0}.card a.stretch{color:inherit;text-decoration:none;display:block}.tag{background:var(--brand-soft);color:var(--brand-strong);border-radius:999px;padding:.05rem .6rem;font-size:.8rem;font-weight:600;display:inline-block}.notice{background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:6px;margin:1rem 0;padding:.75rem 1rem}label{margin-bottom:.25rem;font-weight:600;display:block}input[type=number],input[type=text],select{border:1px solid var(--line);background:var(--surface);width:100%;color:var(--text);border-radius:8px;padding:.55rem .7rem;font-size:1rem}input:focus,select:focus,button:focus{outline:3px solid color-mix(in srgb, var(--brand) 40%, transparent);outline-offset:1px}.field{margin-bottom:1rem}.row{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;display:grid}button,.btn{cursor:pointer;border:1px solid var(--brand);background:var(--brand);color:#fff;border-radius:8px;padding:.6rem 1.1rem;font-size:1rem;font-weight:600;text-decoration:none;display:inline-block}button.secondary,.btn.secondary{color:var(--brand);background:0 0}button:disabled{opacity:.5;cursor:default}table{border-collapse:collapse;background:var(--surface);width:100%;margin:.75rem 0 1.25rem;font-size:.95rem}th,td{border:1px solid var(--line);text-align:left;vertical-align:top;padding:.5rem .65rem}th{background:var(--brand-soft);font-weight:600}td.num,th.num{text-align:right;white-space:nowrap}.table-wrap{overflow-x:auto}.level{color:#fff;border-radius:6px;justify-content:center;align-items:center;min-width:2.2rem;height:2.2rem;font-weight:700;display:inline-flex}.level-1{background:var(--warn-1);color:#333;border:1px solid #999}.level-2{background:var(--warn-2);color:#333}.level-3{background:var(--warn-3)}.level-4{background:var(--warn-4)}.level-5{background:var(--warn-5)}.site-footer{border-top:1px solid var(--line);color:var(--muted);background:var(--surface);padding:2rem 0;font-size:.9rem}.site-footer nav{flex-wrap:wrap;gap:1rem;margin-bottom:.75rem;display:flex}.site-footer a{color:var(--muted)}.sources{color:var(--muted);border-top:1px dashed var(--line);margin-top:2rem;padding-top:.75rem;font-size:.9rem}.sources ul{margin:.25rem 0 0;padding-left:1.2rem}@media (width<=640px){h1{font-size:1.45rem}.site-header .container{flex-wrap:wrap;padding-top:.5rem;padding-bottom:.5rem}.nav a{padding:.3rem .5rem;font-size:.9rem}}