:root{--bg:#EBECEE;--surface:#F7F8F9;--ink:#121417;--ink2:#454B53;--ink3:#5C636C;--hair:#CBCFD4;--blue:#1D5BD6;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#0E0F11;--surface:#17191C;--ink:#F2F3F5;--ink2:#B4BAC2;--ink3:#9097A0;--hair:#2E3238;--blue:#4C82FF}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text",system-ui,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 20px 64px}
header.top{display:flex;align-items:center;gap:12px;margin-bottom:24px}
header.top img{width:44px;height:44px;border-radius:10px}
header.top .t{font-weight:700;letter-spacing:-.01em}
header.top .s{color:var(--ink3);font-size:14px}
h1{font-size:30px;line-height:1.15;letter-spacing:-.02em;margin:0 0 6px}
h2{font-size:20px;letter-spacing:-.01em;margin:36px 0 8px}
h3{font-size:17px;margin:20px 0 4px}
p,li{color:var(--ink2)}
ul{padding-left:20px}
a{color:var(--blue);text-underline-offset:2px}
nav.lang{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 8px}
nav.lang a{padding:6px 12px;border:1px solid var(--hair);border-radius:999px;text-decoration:none;font-size:15px;color:var(--ink)}
.card{background:var(--surface);border:1px solid var(--hair);border-radius:8px;padding:16px 18px;margin:12px 0}
.meta{color:var(--ink3);font-size:14px}
section[lang]{border-top:1px solid var(--hair);margin-top:40px;padding-top:8px}
footer{color:var(--ink3);font-size:14px;margin-top:48px}