< // 简单的加载动画 document.addEventListener('DOMContentLoaded', function() { const cards = document.querySelectorAll('.fade-in'); cards.forEach((card, index) =>{ card.style.animationDelay = `${index * 0.1}s`; }); });>script{ card.style.animationDelay = `${index * 0.1}s`; }); });>