*{ box-sizing:border-box; }
  html,body{ margin:0; padding:0; background:#f5f5f5; color:#1d2b3a;
    font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif; }
  header.lg{ background:#e63946; color:#fff; padding:16px 20px; position:sticky; top:0; z-index:5;
    display:flex; align-items:center; justify-content:space-between; }
  header.lg .site{ font-weight:700; }
  header.lg a{ color:#fff; text-decoration:none; font-size:14px; opacity:.95; }
  header.lg a:hover{ text-decoration:underline; }
  .content{ max-width:760px; margin:22px auto; background:#fff; border-radius:14px;
    padding:26px 30px; box-shadow:0 1px 6px rgba(0,0,0,.08); line-height:1.6; }
  .content h1{ font-size:26px; margin-top:0; }
  .content h2{ font-size:19px; margin-top:26px; }
  .content a{ color:#c92a37; }
  .content ul{ padding-left:20px; }

header.lg .lg-logo{ max-height:36px; width:auto; display:block; }