:root{--bg:#fff;--fg:#222;--sub:#666;--accent:#1a5fb4;--card:#f5f6f8;--line:#ddd}
@media (prefers-color-scheme:dark){:root{--bg:#16181c;--fg:#e8e8e8;--sub:#9aa0a6;--accent:#7db3ff;--card:#20242a;--line:#333}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.8 -apple-system,"Hiragino Sans","Yu Gothic",sans-serif}
header{background:#000 url(wp-content/uploads/2024/11/header.jpeg) center/cover;color:#fff;padding:72px 16px;text-align:center}
header h1{margin:0;font-size:2rem;text-shadow:0 2px 8px #000}
header p{margin:.4em 0 0;text-shadow:0 2px 8px #000}
main{max-width:760px;margin:0 auto;padding:24px 16px 48px}
section{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin:24px 0}
h2{margin:0 0 .4em;font-size:1.4rem}
img{max-width:100%;height:auto;border-radius:8px}
a{color:var(--accent)}
.sub{color:var(--sub)}
.btn{display:inline-block;margin:6px 8px 6px 0;padding:8px 16px;border-radius:8px;background:var(--accent);color:var(--bg);text-decoration:none;font-weight:600}
footer{text-align:center;color:var(--sub);padding:24px 16px;font-size:.85rem}