.app{height:100%;display:flex;flex-direction:column}:root{--primary: #2d6cdf}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}.nav{display:flex;gap:12px;align-items:center;padding:12px 16px;background-color:#f7f8fa;border-bottom:1px solid #e4e6eb}.nav a{color:#333;text-decoration:none;padding:6px 10px;border-radius:6px}.nav a.router-link-active{background:var(--primary);color:#fff}.page{padding:16px}