:root{--ink:#141c28;--muted:#5a6b80;--line:#e3e8ef;--brass:#a8801f}
*{box-sizing:border-box}
body{margin:0;background:#f7f9fc;color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased}
.wrap{max-width:720px;margin:0 auto;padding:48px 22px 80px}
header{display:flex;align-items:center;gap:12px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:30px}
header .mark{width:38px;height:38px;border-radius:11px;flex:0 0 38px;display:grid;place-items:center;
  background:linear-gradient(145deg,#1a2439,#0b1220)}
header .mark svg{width:20px;height:20px;stroke:#d8ac52;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
header b{font-size:17px}
header span{display:block;font-size:13px;color:var(--muted);font-weight:400}
h1{font-size:29px;line-height:1.2;margin:0 0 6px}
.eff{color:var(--muted);font-size:14px;margin:0 0 32px}
h2{font-size:19px;margin:34px 0 10px}
p,li{color:#2c3a4d}
ul{padding-left:20px}
li{margin-bottom:7px}
.box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:22px 0}
.box b{color:var(--brass)}
a{color:#1e5fa8}
footer{margin-top:46px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13.5px}