:root{--bg:#FDF6F3;--ink:#2A2140;--muted:#6B6280;--card:#FFFFFF;--line:#EDE3EA;--accent:#F2622A;--link:#C2410C}
@media (prefers-color-scheme: dark){:root{--bg:#17122A;--ink:#F3EEFF;--muted:#B3A9C9;--card:#221A3B;--line:#33294F;--accent:#FF9A2A;--link:#FFB35C}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif}
main{max-width:680px;margin:0 auto;padding:48px 20px 64px}
header{display:flex;align-items:center;gap:16px;margin-bottom:28px}
header img{width:72px;height:72px;border-radius:16px;box-shadow:0 6px 20px rgba(42,33,64,.18)}
header a{color:inherit;text-decoration:none}
h1{font-size:30px;line-height:1.2;margin:0}
h2{font-size:20px;margin:32px 0 8px}
p,li{color:var(--ink)}
.sub{color:var(--muted);margin:2px 0 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:14px 0}
a{color:var(--link)}
nav{display:flex;gap:18px;margin-top:40px;padding-top:18px;border-top:1px solid var(--line);font-size:15px}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:600;padding:10px 18px;border-radius:999px}
small{color:var(--muted)}