html,body { overscroll-behavior:none; }
#display-help { position:fixed; z-index:10000; left:50%; top:50%; transform:translate(-50%,-50%); box-sizing:border-box; width:min(430px,90vw); max-height:85dvh; overflow:auto; background:#15130f; color:#f1e7d3; border:1px solid #b18b48; border-radius:12px; padding:22px; box-shadow:0 0 0 100vmax #000b; font:15px/1.5 system-ui,sans-serif; }
#display-help button { padding:12px; min-height:44px; border:1px solid #ad8544; background:#2b251b; color:#fff0cf; border-radius:6px; font:inherit; touch-action:manipulation; }
html[data-screen=window] body.mobile #fs { display:block; z-index:90; bottom:auto; top:max(8px,env(safe-area-inset-top)); right:50%; transform:translateX(50%); opacity:.9; min-height:38px; min-width:44px; }