fix: 顶栏全宽 + 侧边栏对齐修正

- 外层 .template > .el-container: flex-direction: column (顶栏全宽独行)
- 内层 .template > .el-container > .el-container: flex-direction: row (侧边栏+内容水平)
- el-aside height: calc(100vh - 60px - 24px) 减去上下 margin
- el-aside top: calc(60px + 12px) 对齐顶栏下方间距

clientarea/hgcloud/css/dark-override.css

@@ -26,21 +26,31 @@ html, body {
 }
 
 /* ============ 布局容器 ============ */
-.el-container {
+/* 外层容器：垂直排列（顶栏 + 下方内容） */
+.template > .el-container {
+  flex-direction: column !important;
   width: 100% !important;
+  min-height: 100vh !important;
+}
+
+/* 内层容器：水平排列（侧边栏 + 主内容） */
+.template > .el-container > .el-container {
+  flex-direction: row !important;
+  flex: 1 !important;
 }
 
 /* ============ 侧边栏 ============ */
 .el-aside {
   background: #FFFFFF !important;
   border-right: none !important;
-  height: calc(100vh - 60px) !important;
+  height: calc(100vh - 60px - 24px) !important;
   position: sticky !important;
-  top: 60px !important;
+  top: calc(60px + 12px) !important;
   margin: 12px 0 12px 12px !important;
   border-radius: 16px !important;
   box-shadow: 0 1px 3px rgba(0,0,0,0.04) !important;
-  overflow: hidden !important;
+  overflow-y: auto !important;
+  overflow-x: hidden !important;
   z-index: 10 !important;
 }