| default | The scrollable body content, below the tray header. |
| meta | A secondary metadata row under the title (links, tags, badges) — only renders its wrapper row if provided. |
| actions | A right-aligned action cluster in the tray header (dropdowns, buttons) — only renders its wrapper row if provided. |
| nav-leading | Extra controls in the top nav bar's left cluster, after the always-present close button — e.g. a maximize button. |
| nav-trailing | Content in the top nav bar's right cluster — e.g. prev/next navigation. Only renders its wrapper row if provided. |
| footer | Forwarded to USlideover's own #footer slot, unstyled. |
| content | Full escape hatch, forwarded to USlideover's own #content slot with `close` on its scoped slot — bypasses this component's entire shell (top nav bar, tray header, body) for a drawer that doesn't fit it at all. |