fix: 增强CSS覆盖, 重置common.css的position/height/top

- el-header: top:auto, backdrop-filter:none, border-radius:0
- el-aside: height:auto, position:relative, top:auto, padding:0
- 确保所有旧值被完全覆盖

clientarea/hgcloud/css/dark-override.css

@@ -55,12 +55,17 @@ html, body {
   width: 100% !important;
   height: 64px !important;
   position: relative !important;
+  top: auto !important;
   background: transparent !important;
+  backdrop-filter: none !important;
+  -webkit-backdrop-filter: none !important;
   box-shadow: none !important;
   border-bottom: none !important;
+  border-radius: 0 !important;
   z-index: 100 !important;
   display: flex !important;
   align-items: center !important;
+  justify-content: space-between !important;
   padding: 0 24px !important;
 }
 
@@ -69,7 +74,11 @@ html, body {
   grid-column: 1 !important;
   grid-row: 2 !important;
   width: 228px !important;
+  height: auto !important;
+  position: relative !important;
+  top: auto !important;
   margin: 0 0 20px 20px !important;
+  padding: 0 !important;
   border-radius: 20px !important;
   background: rgba(255, 255, 255, 0.6) !important;
   backdrop-filter: blur(12px) !important;
@@ -86,7 +95,7 @@ html, body {
   display: none !important;
 }
 
-/* 侧边栏菜单上边距 */
+/* 侧边栏菜单上边距和内边距 */
 .el-aside .menu-top {
   margin-top: 8px !important;
   padding: 0 12px !important;