:root{color-scheme:light;--ink:#122438;--muted:#617187;--line:#dce5ee;--blue:#087eaa;--bg:#f4f7fb}
    *{box-sizing:border-box}
    body{margin:0;padding:40px 20px;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
    main{max-width:760px;margin:0 auto;padding:32px;background:#fff;border:1px solid var(--line);border-radius:18px}
    h1{margin:0 0 8px;line-height:1.2}
    p{color:var(--muted)}
    ul{padding-left:22px}
    li{margin:12px 0}
    a{color:var(--blue)}
    .back{display:inline-block;margin-bottom:24px;text-decoration:none}
    .langswitch{display:inline-flex;align-items:center;margin:0 0 20px;border:1px solid var(--line);border-radius:999px;overflow:hidden;font-size:.78rem;font-weight:700;letter-spacing:.06em}
    .langswitch a{display:inline-flex;align-items:center;justify-content:center;min-width:38px;padding:5px 9px;color:var(--muted);text-decoration:none}
    .langswitch a:hover{background:rgba(8,126,170,.08);color:var(--ink)}
    .langswitch a[aria-current="true"]{background:var(--blue);color:#fff}
    .langswitch a:focus-visible{outline:2px solid var(--blue);outline-offset:2px;position:relative;z-index:1}
    @media(max-width:520px){body{padding:18px 12px}main{padding:22px 18px}}