body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f0f2f5;color:#333}#app-container{padding:0 24px 24px}.app-header{background-color:#fff;box-shadow:0 2px 4px #0000001a;padding:0 24px;margin:0 -24px 24px}nav{display:flex;gap:24px}nav a{display:inline-block;padding:16px 4px;text-decoration:none;color:#4a5568;font-weight:600;border-bottom:3px solid transparent;transition:color .2s,border-color .2s}nav a:hover{color:#007bff}nav a.router-link-exact-active{color:#007bff;border-bottom-color:#007bff}