:root{
  --ink:#2b2622; --sub:#6f655c; --line:#e3dcd4; --bg:#fffdf9; --card:#ffffff;
  --accent:#8a5a2b; --accent-bg:#f6ecdd; --pr:#b3541e;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
a{color:var(--accent)}
header.site{border-bottom:1px solid var(--line);background:#fff}
header.site .inner{max-width:880px;margin:0 auto;padding:14px 16px;display:flex;flex-wrap:wrap;gap:8px 20px;align-items:baseline}
.logo{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
.tagline{color:var(--sub);font-size:13px}
nav.gnav{max-width:880px;margin:0 auto;padding:0 16px 10px;display:flex;flex-wrap:wrap;gap:4px 16px;font-size:14px}
nav.gnav a{text-decoration:none}
main{max-width:880px;margin:0 auto;padding:20px 16px 48px}
h1{font-size:24px;line-height:1.4;margin:8px 0 12px}
h2{font-size:19px;border-left:4px solid var(--accent);padding-left:10px;margin:32px 0 12px}
h3{font-size:16px;margin:22px 0 8px}
p{margin:8px 0}
.pr-box{border:1px solid var(--pr);color:var(--pr);background:#fdf3ec;border-radius:6px;padding:8px 12px;font-size:13px;margin:12px 0}
.note-box{border:1px solid var(--line);background:var(--card);border-radius:6px;padding:10px 14px;font-size:14px;margin:12px 0}
.note-box .checked{color:var(--sub);font-size:13px}
.table-wrap{overflow-x:auto;margin:12px 0}
table.spec{border-collapse:collapse;width:100%;min-width:640px;background:var(--card);font-size:14px}
table.spec th,table.spec td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
table.spec th{background:var(--accent-bg);white-space:nowrap}
td.num,th.num{text-align:right;white-space:nowrap}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin:12px 0}
.card{border:1px solid var(--line);border-radius:8px;background:var(--card);padding:14px}
.card a{font-weight:700;text-decoration:none}
.card p{font-size:14px;color:var(--sub);margin:4px 0 0}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;padding:8px 18px;border-radius:6px;font-size:14px;margin:6px 0}
.source{font-size:13px;color:var(--sub)}
footer.site{border-top:1px solid var(--line);background:#fff}
footer.site .inner{max-width:880px;margin:0 auto;padding:18px 16px;font-size:13px;color:var(--sub)}
footer.site nav{display:flex;flex-wrap:wrap;gap:4px 16px;margin-bottom:8px}
ul.tight{margin:6px 0;padding-left:20px}
.small{font-size:13px;color:var(--sub)}