Merge pull request #1 from fuqiuluo/fix/pr-607-revert-edge

fix(linux): keep settings window edge subtle

src/features/settings/dialog/SettingsDialog.module.css

@@ -204,10 +204,17 @@
   color: var(--fg);
 }
 /* Linux draws no shadow for a frameless window (Wayland/KDE give undecorated
-   windows no CSD), so mark its edge in CSS instead. --border-window alone is
-   near-invisible on the dark theme, so blend the foreground tone into it. */
+   windows no CSD), so mark its edge in CSS instead. */
 .windowEdge {
-  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--fg) 32%, var(--border-window));
+  position: relative;
+}
+.windowEdge::after {
+  content: "";
+  position: absolute;
+  inset: 0;
+  z-index: 1;
+  pointer-events: none;
+  box-shadow: inset 0 0 0 1px var(--border-window);
 }
 .windowBody {
   flex: 1;