:root{--bg:#f7f9fb;--card:#fff;--ink:#16202b;--muted:#566373;--line:#d9e0e7;--brand:#0f766e;--brand-ink:#fff;--accent:#e6f4f2;--code:#eef2f6;--ok:#0f766e;--no:#8a94a0}
@media (prefers-color-scheme:dark){:root{--bg:#0d141b;--card:#141d26;--ink:#e7edf3;--muted:#9babbb;--line:#273342;--brand:#2dd4bf;--brand-ink:#06201d;--accent:#12302d;--code:#1b2733;--ok:#2dd4bf;--no:#7f8c99}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP","Yu Gothic",Meiryo,sans-serif}
a{color:var(--brand)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.top{border-bottom:1px solid var(--line);background:var(--card)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none}
.brand svg{width:28px;height:28px}
.top nav{display:flex;gap:14px;font-size:.95rem}
h1{font-size:1.9rem;line-height:1.25;margin:28px 0 12px}
h2{font-size:1.35rem;line-height:1.3;margin:36px 0 10px}
p{margin:0 0 12px}
.lead{font-size:1.08rem;max-width:760px}
.muted{color:var(--muted);font-size:.92rem}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 4px}
.btn{display:inline-block;padding:10px 16px;border-radius:8px;background:var(--brand);color:var(--brand-ink);font-weight:600;text-decoration:none;border:1px solid var(--brand)}
.btn--ghost{background:transparent;color:var(--brand)}
ul.facts{padding-left:20px;margin:0 0 12px;max-width:820px}
ul.facts li{margin:0 0 6px}
.tools{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0}
.tools input{flex:1 1 260px;min-height:42px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font:inherit}
.tools button{min-height:42px;padding:8px 14px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);font:inherit;cursor:pointer}
.tablebox{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{position:sticky;top:0;background:var(--accent);font-size:.88rem}
tbody tr:last-child td{border-bottom:0}
td.n{color:var(--muted);width:3.2em}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--code);padding:1px 5px;border-radius:5px;font-size:.92em;white-space:nowrap}
.rel{color:var(--muted);font-size:.86rem;white-space:nowrap}
.yes{color:var(--ok);font-weight:600;white-space:nowrap}
.no{color:var(--no);white-space:nowrap}
.grp{display:block;color:var(--muted);font-size:.8rem}
.card{border:1px solid var(--line);border-radius:10px;background:var(--card);padding:16px;margin:12px 0;max-width:760px}
.card h2{margin:0 0 6px;font-size:1.15rem}
.card a.title{color:var(--ink);text-decoration:none}
dl.faq{max-width:820px;margin:0}
dl.faq dt{font-weight:700;margin:14px 0 4px}
dl.faq dd{margin:0}
footer{margin:48px 0 0;border-top:1px solid var(--line);background:var(--card);padding:20px 0 28px;font-size:.92rem;color:var(--muted)}
footer a{color:var(--muted)}
.crumbs{font-size:.88rem;color:var(--muted);margin:16px 0 0}
.crumbs a{color:var(--muted)}
@media (max-width:640px){h1{font-size:1.5rem}th,td{padding:7px 8px}.hide-s{display:none}}