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}
.header-actions{display:flex;align-items:center;gap:16px}.language-picker select{height:34px;border:1px solid #b9c3d1;border-radius:5px;background:#f5f7fa;color:#0b1320;padding:0 24px 0 8px;font-weight:800}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
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}.header-actions{align-items:flex-end;flex-direction:column;gap:7px}main{padding-top:32px}h1{font-size:29px}}