*{box-sizing:border-box;margin:0;padding:0}body{color:#333;background:#f5f7fa;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.app-shell{min-height:100vh}.nav{border-bottom:1px solid #eee;justify-content:space-between;align-items:center;max-width:860px;margin:0 auto;padding:12px 16px;display:flex}.nav-left,.nav-right{align-items:center;gap:16px;display:flex}.nav-link{color:#666;font-size:.9rem;text-decoration:none;transition:color .15s}.nav-link:hover,.nav-link.router-link-active{color:#667eea}.nav-user{color:#999;font-size:.85rem;font-weight:500}.icp-footer{text-align:center;padding:20px 16px;font-size:.75rem}.icp-footer a{color:#ccc;text-decoration:none}.icp-footer a:hover{color:#999}