html,body,#app{height:100%;margin:0}.app-wrapper{display:flex;flex-direction:column;min-height:100%}.app-content{flex:1}.app-footer{display:none}@media (max-width: 768px){.app-footer{display:flex;justify-content:center;align-items:center;gap:12px;padding:12px 0;font-size:12px;color:#999;border-top:1px solid #f0f0f0;background:#fafafa}.app-footer a{color:#666;text-decoration:none}.app-footer a:hover{color:#1890ff}}