#akbori-install-btn { background:#000; color:#fff; padding:12px 24px; border:none; border-radius:4px; font-weight:bold; cursor:pointer; }
    .akbori-popup { display:none; position:fixed; bottom:20px; left:50%; transform:translateX(-50%); background:#fff; color:#000; padding:15px; border-radius:8px; box-shadow:0 10px 30px rgba(0,0,0,0.2); z-index:9999; width:90%; max-width:350px; text-align:center; border:1px solid #eee; }
    .akbori-close { background:#f1f1f1; border:none; padding:5px 15px; border-radius:4px; margin-top:10px; cursor:pointer; }