diff --git a/frontend/src/readers/CbzReader.tsx b/frontend/src/readers/CbzReader.tsx
index fd7537a..af69618 100644
--- a/frontend/src/readers/CbzReader.tsx
+++ b/frontend/src/readers/CbzReader.tsx
@@ -396,9 +396,7 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
                     </DropdownMenu.CheckboxItem>
                     {locked && (
                       <div className="px-2.5 pb-1.5 pt-2">
-                        <div className="mb-1 text-xs opacity-60">
-                          预读:锁章末尾时提前挂载其后 N 章 · 当前 {prefetch}
-                        </div>
+                        <div className="mb-1 text-sm">预读:锁章末尾时提前挂载其后 N 章</div>
                         <input
                           type="range"
                           min={0}
@@ -409,6 +407,12 @@ export default function CbzReader({ book, initialLocator, initialPercent, chrome
                           className="rd-range"
                           onChange={(e) => setPrefetch(Number(e.target.value))}
                         />
+                        <div className="flex justify-between px-1 text-[10px] tabular-nums opacity-50" aria-hidden="true">
+                          <span>0</span>
+                          <span>1</span>
+                          <span>2</span>
+                          <span>3</span>
+                        </div>
                       </div>
                     )}
                   </DropdownMenu.Content>