html,body{scroll-behavior:smooth}.app-container{height:100vh;overflow:hidden;display:flex}.app-sider{flex:0 0 300px;border-right:1px solid #ccc;overflow-y:auto}.app-main{flex:auto;overflow-y:auto;position:relative}.app-sider .menuItem{display:block;padding:18px 12px;font-size:14px;color:#333;text-decoration:none}.app-sider .menuItem:hover{color:#fff;background-color:#2f83f0}.app-sider .menuItem.active{color:#fff;background-color:#0955b9}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;box-sizing:border-box}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}