body{margin:0;background:#f5f7fa;color:#0b1320;font:16px/1.65 system-ui,sans-serif;letter-spacing:0}
header{border-bottom:1px solid #d6dce5;background:#fff}
header div{max-width:820px;margin:auto;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}
header strong{font-size:17px}
main{max-width:820px;margin:auto;padding:48px 20px 80px}
h1{font-size:34px;line-height:1.1;letter-spacing:0}
h2{font-size:20px;margin-top:34px;line-height:1.25;letter-spacing:0}
nav{display:flex;gap:12px}
a{color:#0b4da9}
.meta{color:#5c6878}
.lang{border-top:1px solid #d6dce5;margin-top:48px;padding-top:24px}
.back{text-decoration:none;font-size:13px;font-weight:700}
@media(max-width:560px){header div{align-items:flex-start;gap:12px}main{padding-top:32px}h1{font-size:29px}}