:root{--be:#2a9fc4;--be-light:#5cc6e8;--ink:#1c2830;--muted:#5b6b75;--line:#d8e2e7;--night:#0b1419}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Commissioner",system-ui,sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:#0f5d78}
:focus-visible{outline:3px solid var(--be-light);outline-offset:3px;border-radius:4px}
.wrap{max-width:820px;margin:0 auto;padding:0 24px}
header{background:var(--night);color:#fff}
header .wrap{max-width:1180px;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{font-weight:800;font-size:28px;letter-spacing:-.02em;text-decoration:none;color:#fff;display:flex;align-items:center}
.logo .b{color:var(--be-light)}
.logo .bar{display:inline-block;width:3px;height:30px;background:#fff;margin:0 4px 0 3px;border-radius:2px}
header nav a{color:#b9c8d0;text-decoration:none;font-weight:500;font-size:15px;margin-left:24px}
header nav a:hover{color:#fff}
main{padding:56px 0 72px}
h1{font-size:40px;line-height:1.15;letter-spacing:-.02em;margin-bottom:8px}
.updated{color:var(--muted);font-size:15px;margin-bottom:36px}
h2{font-size:22px;margin:36px 0 10px;letter-spacing:-.01em}
p,li{margin-bottom:10px}
ul{padding-left:22px;margin-bottom:12px}
.box{background:#f4f7f8;border:1px solid var(--line);border-radius:10px;padding:18px 22px;margin:18px 0}
.box p{margin:0}
footer{background:#111b21;color:#8fa4b0;font-size:14px;padding:28px 0}
footer .wrap{max-width:1180px}
footer a{color:#c4d2da;text-decoration:none;margin-right:18px}
footer a:hover{color:#fff}
.co{margin-bottom:10px;line-height:1.6}
@media (max-width:560px){body{font-size:16px}.wrap{padding:0 16px}h1{font-size:30px}header nav a{margin-left:14px}main{padding:36px 0 56px}}