body{margin:0;font-family:Arial;background:#fdeff5;overflow:hidden}.bg{position:fixed;inset:0;background:linear-gradient(135deg,#fff,#ffd9ea);animation:g 8s infinite alternate}.card{max-width:380px;width:90%;border-radius:20px;box-shadow:0 20px 40px #0003;animation:f 3s ease-in-out infinite}main{min-height:100vh;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:40px;padding:20px;text-align:center}h1{font-size:3em}@keyframes f{50%{transform:translateY(-10px)}}@keyframes g{to{filter:hue-rotate(20deg)}}