:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}body{background-color:var(--tg-theme-bg-color,#fff);color:var(--tg-theme-text-color,#000);margin:0}.app{padding:16px}h2{margin:24px 0 8px;font-size:1rem}pre{background-color:var(--tg-theme-secondary-bg-color,#f1f1f1);border-radius:8px;margin:0;padding:12px;overflow-x:auto}.hint{color:var(--tg-theme-hint-color,#707579)}.error{color:var(--tg-theme-destructive-text-color,#e53935)}