(()=>{
  'use strict';
  const critical=img=>img.closest('header,.brand,#sunCloudAuthGate,.sun-auth-gate')||img.id==='sunLoginLogo'||img.classList.contains('sun-live-catalog-logo');
  const tune=img=>{
    if(!(img instanceof HTMLImageElement)||critical(img))return;
    if(!img.hasAttribute('loading'))img.loading='lazy';
    if(!img.hasAttribute('decoding'))img.decoding='async';
    if(!img.hasAttribute('fetchpriority'))img.setAttribute('fetchpriority','low');
  };
  const scan=root=>{
    if(root instanceof HTMLImageElement)tune(root);
    root?.querySelectorAll?.('img').forEach(tune);
  };
  const start=()=>{
    scan(document);
    const mo=new MutationObserver(records=>records.forEach(r=>r.addedNodes.forEach(n=>{if(n.nodeType===1)scan(n)})));
    mo.observe(document.documentElement,{childList:true,subtree:true});
    window.SunPerformance={scanImages:()=>scan(document),disconnect:()=>mo.disconnect()};
  };
  if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',start,{once:true});else start();
})();