diff --git a/src/views/CatalogArtist.svelte b/src/views/CatalogArtist.svelte
index 0ab9f1b..d15fac9 100644
--- a/src/views/CatalogArtist.svelte
+++ b/src/views/CatalogArtist.svelte
@@ -1166,8 +1166,13 @@
                 const hostFlowTop = zone.offsetTop + zone.offsetHeight - 18;
                 const fadeS = Math.max(0, hostFlowTop - cutScreen);
                 page.style.setProperty("--fade-s", `${fadeS.toFixed(1)}px`);
-                page.style.setProperty("--frame-h", `${scroller.clientHeight}px`);
             }
+            // Unconditional: .fade-frame is scroll-driven-only, but .sheetclip
+            // sizes itself from --frame-h on BOTH branches (it is what keeps the
+            // 300vh sheet out of the pane's scroll range). Setting it on the
+            // fallback path is otherwise inert — .fade-frame's rule lives inside
+            // the @supports block and never matches there.
+            page.style.setProperty("--frame-h", `${scroller.clientHeight}px`);
             // The extras' hit-gate sentinel parks at the scrollTop where
             // p crosses 0.42. Probed live (2026-07-24, this WebView2): the
             // observers' rootBounds top coincides with the page's box top
@@ -3409,7 +3414,9 @@
              the wash of rounds 7-10: fewer layers, nothing to hand over
              between them, and a baked gradient moved as a whole cannot
              seam. -->
-        <div class="sheetpin" aria-hidden="true"><div class="sheet"></div></div>
+        <div class="sheetpin" aria-hidden="true">
+            <div class="sheetclip"><div class="sheet"></div></div>
+        </div>
 
         <!-- LAYER 30 — THE IDENTITY. The block's bottom IS --edge at every
              scroll position, so the wordmark and the Play/chips row are
@@ -4084,13 +4091,52 @@
        seams of rounds 7-10 all came from recomputing stops against the
        scroll. This one element replaces the scrim, the veil, the eraser and
        the wash. */
-    .sheet {
+    /* THE SHEET'S CLIP BOX — the reason the pane's scroll range equals its
+       content. The sheet is 300vh of absolutely-positioned decoration, and an
+       abs-positioned descendant extends its scroller's SCROLLABLE OVERFLOW:
+       measured, .content's scrollHeight tracked the sheet's box (pin flow
+       origin + the sheet's live translate + 300vh) instead of the page, so the
+       pane scrolled ~850px past the last content pixel — at max scroll ZERO of
+       11 release rows were on screen, the whole viewport empty page. Worse, the
+       sheet's translate is scroll-driven, so the range BREATHED with scroll
+       position and depended on scroll history (same scrollTop measured 4167,
+       4329 and 4368 by route; hidden .sheet gave exactly 1797 = content).
+       `overflow: clip` here stops that propagation at the clip box's own
+       geometry — the region the pane can actually show — so the sheet paints
+       identically and contributes nothing.
+       ABSOLUTE, and the pin stays height:0: sizing the PIN itself and cancelling
+       with margin-bottom:-100% leaves +24px behind (the negative margin
+       collapses against the neighbouring height-0 pins and walks the hero zone
+       24 → 48). Out of flow, there is no margin to collapse and the sticky
+       constraint is untouched.
+       The box IS the pane's client box: --pin-origin up to undo the pane's
+       padding-top (the pins stick that far below the pane's visible top), and
+       one pane tall. --frame-h is measure()'s scroller.clientHeight; the 100vh
+       fallback only covers the pre-measure first paint, where a too-tall clip
+       is harmless (it just clips less). */
+    .sheetclip {
         position: absolute;
-        top: var(--band-from-pin);
+        top: calc(-1 * var(--pin-origin));
+        /* The sheet's full-bleed lives here now — the clip edge has to sit on
+           the pane's padding edge, or it would shave the bleed off instead. */
         left: -28px;
         right: -28px;
+        height: var(--frame-h, 100vh);
+        overflow: clip;
+        pointer-events: none;
+    }
+
+    .sheet {
+        position: absolute;
+        /* In clip-box coordinates. --band-from-pin is pin-relative and the box
+           sits --pin-origin above the pin, so the two terms cancel to the
+           band's own offset: --band-from-pin + --pin-origin ≡ --band-top. */
+        top: var(--band-top);
+        left: 0;
+        right: 0;
         /* Far past any scrollport bottom; the gradient's tail is opaque page
-           colour, so extra height is just more page. */
+           colour, so extra height is just more page. Free now — the clip box
+           keeps it out of the scrollable overflow however tall it is. */
         height: 300vh;
         pointer-events: none;
         /* The glide is EASED (p²), not linear — the user could see the