:root{
  --bg:#0B0F14; --surface:#161D26; --stroke:#2A3546;
  --primary:#2E7CF6; --accent:#FF8A3D;
  --text:#F2F6FA; --text2:#9AA7B6; --text3:#677385;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.6;
}
.wrap{max-width:760px;margin:0 auto;padding:32px 20px 80px}
header.site{display:flex;align-items:center;gap:14px;padding:28px 0 8px}
.mark{width:52px;height:52px;border-radius:13px;flex:none;
  background:linear-gradient(180deg,#2E7CF6,#1E5FD0);position:relative}
.mark::before{content:"";position:absolute;top:9px;left:50%;transform:translateX(-50%);
  width:9px;height:9px;border-radius:50%;background:var(--accent)}
.mark::after{content:"";position:absolute;top:20px;left:12px;right:12px;height:12px;
  border-bottom:5px solid #fff;border-radius:0 0 3px 3px;
  clip-path:polygon(0 0,50% 100%,100% 0,88% 0,50% 72%,12% 0)}
.brand{font-weight:800;font-size:22px;letter-spacing:-.02em}
.tag{color:var(--text2);font-size:14px;margin-top:2px}
h1{font-size:30px;letter-spacing:-.02em;margin:28px 0 6px}
h2{font-size:19px;margin:32px 0 8px;letter-spacing:-.01em}
p,li{color:var(--text2)}
.lead{color:var(--text);font-size:17px}
.meta{color:var(--text3);font-size:14px;margin-top:4px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.card{background:var(--surface);border:1px solid var(--stroke);border-radius:16px;padding:18px 20px;margin:16px 0}
.pill{display:inline-block;background:rgba(46,124,246,.14);color:var(--primary);
  border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600;margin:2px 6px 2px 0}
hr{border:0;border-top:1px solid var(--stroke);margin:36px 0}
.foot{color:var(--text3);font-size:13px;margin-top:40px}
.foot a{color:var(--text2)}
ul{padding-left:20px}
.btnrow{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.btn{display:inline-block;background:linear-gradient(180deg,#2E7CF6,#1E5FD0);color:#fff;
  font-weight:700;padding:12px 20px;border-radius:12px}
.btn.secondary{background:var(--surface);border:1px solid var(--stroke);color:var(--text)}
@media (prefers-color-scheme:light){
  :root{--bg:#F5F7FA;--surface:#fff;--stroke:#E2E8F0;--text:#0B0F14;--text2:#4A5568;--text3:#94A3B8}
}