:root{--bg:#f4f8f5;--card:#fff;--ink:#153b30;--muted:#4d6a60;--accent:#246746;--line:#dbe7e0}
@media (prefers-color-scheme:dark){:root{--bg:#0f1a16;--card:#16241f;--ink:#e6f0eb;--muted:#a3bbb1;--accent:#7fd1a4;--line:#253a32}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",system-ui,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 16px 80px}
header{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.brand{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
nav a{color:var(--accent);margin-left:14px;text-decoration:none;font-weight:600}
article{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:28px 24px}
h1{font-size:30px;line-height:1.2;margin:0 0 6px}
h2{font-size:20px;margin:32px 0 8px}
.meta{color:var(--muted);margin:0 0 20px}
.notice{border-left:4px solid var(--accent);padding:10px 14px;background:color-mix(in srgb,var(--accent) 8%,transparent);border-radius:8px}
a{color:var(--accent)}
ul{padding-left:22px}
footer{color:var(--muted);font-size:14px;margin-top:28px;text-align:center}