:root{--bg:#faf8f4;--fg:#2b2a28;--mut:#6b675f;--ac:#3f5a4e;--ac2:#e9efe9;--line:#ddd7cb;--card:#fff}
@media(prefers-color-scheme:dark){:root{--bg:#1c1d1b;--fg:#ebe8e1;--mut:#a39f95;--ac:#9cc4b0;--ac2:#27302b;--line:#3a3c38;--card:#242622}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.9 "Hiragino Mincho ProN","Yu Mincho",serif}
a{color:var(--ac)}header{border-bottom:1px solid var(--line);background:var(--card)}
.w{max-width:880px;margin:0 auto;padding:0 16px}
.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding:14px 0}
.logo{font-size:1.25rem;font-weight:700;color:var(--fg);text-decoration:none;letter-spacing:.08em}
nav a{margin-right:14px;text-decoration:none;font-size:.95rem;font-family:"Hiragino Sans","Yu Gothic",sans-serif}
nav a:hover,nav a.on{text-decoration:underline}
main{padding:28px 0 56px}h1{font-size:1.6rem;line-height:1.5;margin:.2em 0 .6em}
h2{font-size:1.25rem;border-left:5px solid var(--ac);padding-left:10px;margin:2em 0 .6em}h3{font-size:1.08rem;margin:1.6em 0 .4em}
.lead{color:var(--mut)}.crumb{font-size:.85rem;color:var(--mut);font-family:sans-serif}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:18px 0}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 16px;text-decoration:none;color:var(--fg)}
.card:hover{border-color:var(--ac)}.card b{display:block;color:var(--ac);margin-bottom:4px}.card span{font-size:.9rem;color:var(--mut)}
.hero{background:var(--ac2);border-radius:10px;padding:28px 22px;margin-bottom:10px}
table{border-collapse:collapse;width:100%;font-size:.95rem;margin:12px 0}th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}th{background:var(--ac2)}
.note{background:var(--ac2);border-radius:8px;padding:10px 14px;font-size:.93rem;margin:16px 0}
.tbl{overflow-x:auto}img{max-width:100%;height:auto}
footer{border-top:1px solid var(--line);padding:22px 0;font-size:.88rem;color:var(--mut);font-family:sans-serif}
.date{color:var(--mut);font-size:.88rem;font-family:sans-serif}
li{margin:.3em 0}
@media(max-width:560px){h1{font-size:1.4rem}}