:root{--bg:#fff;--text:#121316;--muted:#5e636b;--line:#e8e8e5;--accent:#d92f36}
@media (prefers-color-scheme:dark){:root{--bg:#0c0d0f;--text:#edeef0;--muted:#9ca1a9;--line:#26282d;--accent:#e5484d}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Inter,sans-serif}
main{max-width:760px;margin:0 auto;padding:40px 20px 80px}header{display:flex;align-items:center;gap:12px;margin-bottom:32px}
.mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,#f2555b,#be1e27)}header b{font-size:17px}
h1{font-size:30px;line-height:1.2;margin:0 0 6px;letter-spacing:-.02em}.date{color:var(--muted);margin:0 0 28px}
h2{font-size:19px;margin:34px 0 8px;letter-spacing:-.01em}p,li{color:var(--text)}ul{padding-left:22px}li{margin:4px 0}
a{color:var(--accent)}.note{border-left:3px solid var(--line);padding:2px 0 2px 14px;color:var(--muted)}
nav{margin-top:48px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:18px;font-size:14px}nav a{color:var(--muted)}