:root{--bg:#f6f8fb;--card:#fff;--text:#16202e;--muted:#5a6779;--accent:#1f5fd6;--line:#e3e8ef}
@media (prefers-color-scheme:dark){:root{--bg:#0d1420;--card:#152031;--text:#e8eef7;--muted:#9aa8bb;--accent:#6ea1ff;--line:#243248}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif}
header{background:linear-gradient(135deg,#12204a,#1f5fd6);color:#fff;padding:28px 16px}
header .wrap{display:flex;align-items:center;gap:14px}

header .name{font-weight:700;font-size:20px}
header nav a{color:#fff;opacity:.85;margin-right:16px;text-decoration:none;font-size:15px}
header nav a:hover{opacity:1}
.wrap{max-width:760px;margin:0 auto}
main{padding:24px 16px 56px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 22px}
h1{font-size:30px;line-height:1.2;margin:0 0 6px}
h2{font-size:20px;margin:28px 0 8px}
.meta{color:var(--muted);font-size:15px;margin:0 0 18px}
a{color:var(--accent)}
li{margin:4px 0}
.note{background:rgba(31,95,214,.08);border-radius:12px;padding:14px 16px}
footer{color:var(--muted);font-size:14px;text-align:center;padding:0 16px 40px}