diff --git a/ui/src/pages/ProductStockByAttributes.vue b/ui/src/pages/ProductStockByAttributes.vue
index 9eecdc1..700fd30 100644
--- a/ui/src/pages/ProductStockByAttributes.vue
+++ b/ui/src/pages/ProductStockByAttributes.vue
@@ -253,7 +253,7 @@
       </div>
     </div>
 
-    <q-dialog v-model="productCardDialog" maximized>
+    <q-dialog v-model="productCardDialog" maximized @hide="onProductCardDialogHide">
       <q-card class="product-card-dialog">
         <q-card-section class="row items-center q-pb-sm">
           <div class="text-h6">Urun Karti</div>
@@ -275,6 +275,7 @@
                 arrows
                 height="100%"
                 class="product-card-carousel rounded-borders"
+                @update:model-value="onProductCardSlideChange"
               >
                 <q-carousel-slide
                   v-for="(img, idx) in productCardImages"
@@ -322,7 +323,7 @@
       </q-card>
     </q-dialog>
 
-    <q-dialog v-model="productImageFullscreenDialog" maximized @hide="onFullscreenMouseUp">
+    <q-dialog v-model="productImageFullscreenDialog" maximized @hide="onFullscreenDialogHide">
       <q-card class="image-fullscreen-dialog">
         <q-card-section class="row items-center q-pb-sm">
           <div class="text-h6">Urun Fotografi</div>
@@ -665,6 +666,43 @@ function sortImagesForDisplay(list) {
   return Array.isArray(list) ? [...list] : []
 }
 
+function getHashRouteParts() {
+  if (typeof window === 'undefined') return { path: '', params: new URLSearchParams() }
+  const rawHash = String(window.location.hash || '')
+  const hashBody = rawHash.startsWith('#') ? rawHash.slice(1) : rawHash
+  const qPos = hashBody.indexOf('?')
+  const path = qPos >= 0 ? hashBody.slice(0, qPos) : hashBody
+  const query = qPos >= 0 ? hashBody.slice(qPos + 1) : ''
+  return { path, params: new URLSearchParams(query) }
+}
+
+function replaceHashRouteQuery(key, value) {
+  if (typeof window === 'undefined') return
+  const { path, params } = getHashRouteParts()
+  if (!path) return
+  if (value === null || value === undefined || String(value).trim() === '') params.delete(key)
+  else params.set(key, String(value).trim())
+  const nextQuery = params.toString()
+  const nextHash = `#${path}${nextQuery ? `?${nextQuery}` : ''}`
+  if (window.location.hash === nextHash) return
+  window.history.replaceState(null, '', `${window.location.pathname}${window.location.search}${nextHash}`)
+}
+
+function getGalleryQueryIndex() {
+  const { params } = getHashRouteParts()
+  const n = Number(params.get('g') || 1)
+  if (!Number.isFinite(n) || n < 1) return 0
+  return n - 1
+}
+
+function setGalleryQueryIndex(index) {
+  replaceHashRouteQuery('g', Math.max(1, Number(index || 0) + 1))
+}
+
+function clearGalleryQueryIndex() {
+  replaceHashRouteQuery('g', null)
+}
+
 async function resolveProductImageUrlForCarousel(item) {
   const resolved = resolveProductImageUrl(item)
   const contentUrl = String(resolved.contentUrl || '').trim()
@@ -1320,7 +1358,8 @@ async function openProductCard(grp1, grp2) {
   }
 
   productCardImages.value = uniqueImages
-  productCardSlide.value = 0
+  productCardSlide.value = Math.min(Math.max(getGalleryQueryIndex(), 0), Math.max(uniqueImages.length - 1, 0))
+  setGalleryQueryIndex(productCardSlide.value)
   productCardData.value = {
     productCode,
     colorCode,
@@ -1345,6 +1384,7 @@ function openProductImageFullscreen(src) {
   productImageFullscreenSrc.value = value
   const idx = Math.max(0, fullscreenImages.value.findIndex((x) => String(x || '').trim() === value))
   productImageFullscreenSlide.value = idx
+  setGalleryQueryIndex(idx)
   productImageFullscreenZoom.value = 1
   productImageFullscreenOffsetX.value = 0
   productImageFullscreenOffsetY.value = 0
@@ -1403,12 +1443,26 @@ function onFullscreenMouseUp() {
 }
 
 function onFullscreenSlideChange() {
+  setGalleryQueryIndex(productImageFullscreenSlide.value)
   productImageFullscreenZoom.value = 1
   productImageFullscreenOffsetX.value = 0
   productImageFullscreenOffsetY.value = 0
   productImageFullscreenDragging.value = false
 }
 
+function onProductCardSlideChange() {
+  setGalleryQueryIndex(productCardSlide.value)
+}
+
+function onProductCardDialogHide() {
+  productImageFullscreenDialog.value = false
+  clearGalleryQueryIndex()
+}
+
+function onFullscreenDialogHide() {
+  onFullscreenMouseUp()
+}
+
 function resetForm() {
   filters.value = createEmptyFilters()
   rawRows.value = []
diff --git a/ui/src/pages/ProductStockQuery.vue b/ui/src/pages/ProductStockQuery.vue
index 7f68dcf..9f1249c 100644
--- a/ui/src/pages/ProductStockQuery.vue
+++ b/ui/src/pages/ProductStockQuery.vue
@@ -238,7 +238,7 @@
       </div>
     </div>
 
-    <q-dialog v-model="productCardDialog" maximized>
+    <q-dialog v-model="productCardDialog" maximized @hide="onProductCardDialogHide">
       <q-card class="product-card-dialog">
         <q-card-section class="row items-center q-pb-sm">
           <div class="text-h6">Urun Karti</div>
@@ -260,6 +260,7 @@
                 arrows
                 height="100%"
                 class="product-card-carousel rounded-borders"
+                @update:model-value="onProductCardSlideChange"
               >
                 <q-carousel-slide
                   v-for="(img, idx) in productCardImages"
@@ -307,7 +308,7 @@
       </q-card>
     </q-dialog>
 
-    <q-dialog v-model="productImageFullscreenDialog" maximized @hide="onFullscreenMouseUp">
+    <q-dialog v-model="productImageFullscreenDialog" maximized @hide="onFullscreenDialogHide">
       <q-card class="image-fullscreen-dialog">
         <q-card-section class="row items-center q-pb-sm">
           <div class="text-h6">Urun Fotografi</div>
@@ -644,6 +645,43 @@ function sortImagesForDisplay(list) {
   return Array.isArray(list) ? [...list] : []
 }
 
+function getHashRouteParts() {
+  if (typeof window === 'undefined') return { path: '', params: new URLSearchParams() }
+  const rawHash = String(window.location.hash || '')
+  const hashBody = rawHash.startsWith('#') ? rawHash.slice(1) : rawHash
+  const qPos = hashBody.indexOf('?')
+  const path = qPos >= 0 ? hashBody.slice(0, qPos) : hashBody
+  const query = qPos >= 0 ? hashBody.slice(qPos + 1) : ''
+  return { path, params: new URLSearchParams(query) }
+}
+
+function replaceHashRouteQuery(key, value) {
+  if (typeof window === 'undefined') return
+  const { path, params } = getHashRouteParts()
+  if (!path) return
+  if (value === null || value === undefined || String(value).trim() === '') params.delete(key)
+  else params.set(key, String(value).trim())
+  const nextQuery = params.toString()
+  const nextHash = `#${path}${nextQuery ? `?${nextQuery}` : ''}`
+  if (window.location.hash === nextHash) return
+  window.history.replaceState(null, '', `${window.location.pathname}${window.location.search}${nextHash}`)
+}
+
+function getGalleryQueryIndex() {
+  const { params } = getHashRouteParts()
+  const n = Number(params.get('g') || 1)
+  if (!Number.isFinite(n) || n < 1) return 0
+  return n - 1
+}
+
+function setGalleryQueryIndex(index) {
+  replaceHashRouteQuery('g', Math.max(1, Number(index || 0) + 1))
+}
+
+function clearGalleryQueryIndex() {
+  replaceHashRouteQuery('g', null)
+}
+
 async function resolveProductImageUrlForCarousel(item) {
   const resolved = resolveProductImageUrl(item)
   const contentUrl = String(resolved.contentUrl || '').trim()
@@ -1130,7 +1168,8 @@ async function openProductCard(grp1, grp2) {
   }
 
   productCardImages.value = uniqueImages
-  productCardSlide.value = 0
+  productCardSlide.value = Math.min(Math.max(getGalleryQueryIndex(), 0), Math.max(uniqueImages.length - 1, 0))
+  setGalleryQueryIndex(productCardSlide.value)
   productCardData.value = {
     productCode,
     colorCode,
@@ -1155,6 +1194,7 @@ function openProductImageFullscreen(src) {
   productImageFullscreenSrc.value = value
   const idx = Math.max(0, fullscreenImages.value.findIndex((x) => String(x || '').trim() === value))
   productImageFullscreenSlide.value = idx
+  setGalleryQueryIndex(idx)
   productImageFullscreenZoom.value = 1
   productImageFullscreenOffsetX.value = 0
   productImageFullscreenOffsetY.value = 0
@@ -1213,12 +1253,26 @@ function onFullscreenMouseUp() {
 }
 
 function onFullscreenSlideChange() {
+  setGalleryQueryIndex(productImageFullscreenSlide.value)
   productImageFullscreenZoom.value = 1
   productImageFullscreenOffsetX.value = 0
   productImageFullscreenOffsetY.value = 0
   productImageFullscreenDragging.value = false
 }
 
+function onProductCardSlideChange() {
+  setGalleryQueryIndex(productCardSlide.value)
+}
+
+function onProductCardDialogHide() {
+  productImageFullscreenDialog.value = false
+  clearGalleryQueryIndex()
+}
+
+function onFullscreenDialogHide() {
+  onFullscreenMouseUp()
+}
+
 function resetForm() {
   selectedProductCode.value = ''
   rawRows.value = []