html{scroll-behavior:smooth}body{margin:0;font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:#111827;background:#fafafa}a{color:inherit;text-decoration:none}*{box-sizing:border-box}@keyframes float-slow{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.animate-bounce-slow{animation:float-slow 4s ease-in-out infinite}