document.addEventListener('DOMContentLoaded', function() { document.getElementById('loginForm').addEventListener('submit', function(e) { const btn = document.getElementById('submitBtn'); btn.innerHTML = '验证中...'; btn.disabled = true; btn.style.opacity = '0.8'; }); const inputs = document.querySelectorAll('input'); inputs.forEach(input => { input.addEventListener('focus', function() { this.parentElement.style.transform = 'scale(1.02)'; }); input.addEventListener('blur', function() { this.parentElement.style.transform = 'scale(1)'; }); }); });