#app{display:flex;height:100vh}.sidebar{width:220px;background:#3c3c3c;color:#ccc;display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto}.sidebar-header{padding:16px 14px;border-bottom:1px solid #555;font-size:14px;color:#fff;text-align:center}.sidebar-nav{flex:1;overflow-y:auto;padding:8px 0}.nav-group{padding:4px 14px;font-size:11px;color:#888;text-transform:uppercase;margin-top:8px}.nav-item{padding:10px 14px 10px 20px;cursor:pointer;font-size:13px;display:flex;align-items:center;gap:8px;transition:background .15s}.nav-item:hover{background:#4a4a4a;color:#fff}.nav-item.active{background:#4a90d9;color:#fff}.nav-item.sub{padding-left:34px;font-size:12px}.nav-item.group{padding-left:44px;font-size:12px;color:#aaa;font-weight:700}.nav-item.group:hover{color:#fff}.nav-item.item{padding-left:56px;font-size:11px}.nav-item.item:before{content:"• ";color:#888}.nav-item.item.active{background:#4a90d9;color:#fff}.expand-icon{font-size:10px;width:12px;display:inline-block}.main-content{flex:1;overflow-y:auto;padding:20px;background:#f5f5f5}body{margin:0;font-family:Microsoft YaHei,PingFang SC,sans-serif;font-size:13px;color:#333}h1{font-size:18px;font-weight:400}h2{font-size:15px;font-weight:400}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Microsoft YaHei,sans-serif}.ant-layout-sider{background:#001529}.plate-header{background:#001529!important;color:#fff!important;font-weight:700}