MediaWiki:Footer

 <a href="https://u-stella.fanbox.cc/" 
    class="fanbox-button" 
    style="display:inline-block; background:#ff6289; color:white; padding:0.6em 1.4em; border-radius:999px; text-decoration:none; font-weight:bold; font-size:16px; box-shadow:0 2px 6px rgba(0,0,0,0.2); transition: background 0.2s ease;"
    target="_blank" rel="noopener">
   🎁 FANBOXで支援する
 </a>