:root{--primary:#2c3e50;--secondary:#3498db;--accent:#e74c3c;--text:#2c3e50;--bg:#f9f9f9}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,system-ui,sans-serif}html,body,#app{min-height:100%}body{margin:0}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.floating-element{animation:3s ease-in-out infinite float}footer{z-index:20;background-color:#00000080;border-top:2px solid silver;flex-wrap:wrap;justify-content:center;align-items:center;width:100%;min-height:2em;padding:.25rem .5rem;display:flex;position:fixed;bottom:0}.footer-icp,.footer-beian,.footer-copyright{margin-left:5px;margin-right:5px}.footer-icp,.footer-beian{color:#d3d3d3;text-decoration:none}.footer-beian{text-align:center;flex-direction:row;align-items:center;display:flex}.footer-beian img{margin-right:3px}.footer-copyright{color:silver}.trail-line{pointer-events:none;transform-origin:0;z-index:10;background:linear-gradient(90deg,#ff6b6b,#ff9f43);height:2px;position:fixed}@media (width<=768px){.brand{letter-spacing:-1px;font-size:2.5rem}.nav-links{gap:1.5rem}}