message: fixed -1 calc eval
diff: }
  .SplitLayout--ios .SplitLayout__inner--header {
  - margin-top: calc(var(--panelheader_height_ios) * -1);
  + margin-top: calc(-1 * var(--panelheader_height_ios));
  }
  .SplitLayout--android .SplitLayout__inner--header,
  .SplitLayout--vkcom .SplitLayout__inner--header {
  - margin-top: calc(var(--panelheader_height_android) * -1);
  + margin-top: calc(-1 * var(--panelheader_height_android));
  }
  .SplitLayout__popout {
  