MediaWiki:Common.js

$(function () {
  const btn = $('<a href="/index.php/首页" id="return-home-button">🏠 返回首页</a>').css({
    position: 'fixed',
    bottom: '20px',
    right: '20px',
    padding: '10px 14px',
    background: '#ffffffdd',
    color: '#333',
    fontSize: '14px',
    fontWeight: 'bold',
    border: '1px solid #ccc',
    borderRadius: '8px',
    textDecoration: 'none',
    boxShadow: '0 2px 6px rgba(0,0,0,0.2)',
    zIndex: 9999
  });
  $('body').append(btn);
});