diff --git a/src/renderer/components/ui/TitleBar.vue b/src/renderer/components/ui/TitleBar.vue
index d0587b11..3b845292 100644
--- a/src/renderer/components/ui/TitleBar.vue
+++ b/src/renderer/components/ui/TitleBar.vue
@@ -199,9 +199,11 @@ onBeforeUnmount(() => {
   color: var(--color-text-primary);
   background: var(--color-surface-elevated);
 }
+
 .pin-icon {
   color: #6b7280;
 }
+
 .pin-icon.active {
   rotate: 90deg;
   color: #ce6769;
diff --git a/src/renderer/manage/pages/BucketPage.vue b/src/renderer/manage/pages/BucketPage.vue
index 4edcbbbd..d4268191 100644
--- a/src/renderer/manage/pages/BucketPage.vue
+++ b/src/renderer/manage/pages/BucketPage.vue
@@ -612,18 +612,15 @@
           </button>
         </div>
         <div class="modal-content">
-          <div
-            v-for="(value, key) in currentShowedFileInfo"
-            :key="key"
-            style="display: flex; margin-bottom: 1rem; gap: 1rem"
-          >
+          <div v-for="(value, key) in currentShowedFileInfo" :key="key" class="file-info-item">
             <div
-              style="flex: 0 0 30%; font-weight: 500; cursor: pointer"
+              class="file-info-key"
+              :title="`Click to copy key-value pair: ${key}`"
               @click="copyToClipboard(JSON.stringify({ [key]: value }))"
             >
-              {{ key }}:
+              {{ key }}
             </div>
-            <div style="flex: 1; word-break: break-all; cursor: pointer" @click="copyToClipboard(value)">
+            <div class="file-info-value" :title="`Click to copy: ${value}`" @click="copyToClipboard(value)">
               {{ value }}
             </div>
           </div>
@@ -690,26 +687,24 @@
     </div>
 
     <!-- Loading Indicators -->
-    <div
-      v-if="isLoadingData"
-      class="modal-overlay"
-      style="position: fixed; right: 25px; bottom: 25px; background: none; pointer-events: none"
-    >
-      <button class="action-button warning" style="pointer-events: auto" @click="cancelLoading">
+    <div v-if="isLoadingData" class="loading-toast loading-toast-bottom">
+      <div class="loading-toast-content">
         <div class="loading-spinner" />
-        {{ t('pages.manage.bucket.loading') }}
-      </button>
+        <span class="loading-text">{{ t('pages.manage.bucket.loading') }}</span>
+        <button class="loading-cancel-button" :title="t('common.cancel')" @click="cancelLoading">
+          <XIcon class="action-icon" />
+        </button>
+      </div>
     </div>
 
-    <div
-      v-if="isLoadingDownloadData"
-      class="modal-overlay"
-      style="position: fixed; top: 50px; right: 25px; background: none; pointer-events: none"
-    >
-      <button class="action-button warning" style="pointer-events: auto" @click="cancelDownloadLoading">
+    <div v-if="isLoadingDownloadData" class="loading-toast loading-toast-top">
+      <div class="loading-toast-content">
         <div class="loading-spinner" />
-        {{ t('pages.manage.bucket.prepareDownload') }}
-      </button>
+        <span class="loading-text">{{ t('pages.manage.bucket.prepareDownload') }}</span>
+        <button class="loading-cancel-button" :title="t('common.cancel')" @click="cancelDownloadLoading">
+          <XIcon class="action-icon" />
+        </button>
+      </div>
     </div>
     <!-- Upload Drawer -->
     <div
@@ -3003,7 +2998,7 @@ async function getPreSignedUrl(item: any) {
 }
 
 function copyToClipboard(text: string) {
-  window.electron.clipboard.writeText(text)
+  window.electron.clipboard.writeText(String(text))
   message.success(t('pages.manage.bucket.copySuccess'))
   copyDropdownIndex.value = -1
 }
diff --git a/src/renderer/manage/pages/css/BucketPage.css b/src/renderer/manage/pages/css/BucketPage.css
index c7538749..d971d7fa 100644
--- a/src/renderer/manage/pages/css/BucketPage.css
+++ b/src/renderer/manage/pages/css/BucketPage.css
@@ -289,12 +289,6 @@
   color: var(--color-text-secondary);
 }
 
-.file-info-item {
-  display: flex;
-  align-items: center;
-  gap: 0.25rem;
-}
-
 .control-center {
   display: flex;
   align-items: center;
@@ -1325,3 +1319,164 @@ input:checked + .switch-slider::before {
   margin: 0;
   color: var(--color-text-secondary);
 }
+
+/* Loading Spinner */
+.loading-spinner {
+  display: inline-block;
+  width: 16px;
+  height: 16px;
+  border: 2px solid rgb(255 255 255 / 30%);
+  border-radius: 50%;
+  border-top: 2px solid #ffffff;
+  margin-right: 0.5rem;
+  animation: spin 1s linear infinite;
+}
+
+/* Loading Toast Notifications */
+.loading-toast {
+  position: fixed;
+  right: 25px;
+  z-index: 9999;
+  animation: slide-right  0.3s ease-out;
+}
+
+.loading-toast-bottom {
+  bottom: 25px;
+}
+
+.loading-toast-top {
+  top: 50px;
+}
+
+.loading-toast-content {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  padding: 0.875rem 1rem;
+  background: rgb(0 0 0 / 85%);
+  border: 1px solid rgb(255 255 255 / 10%);
+  border-radius: var(--radius-lg);
+  box-shadow: 0 8px 32px rgb(0 0 0 / 30%);
+  min-width: 240px;
+  transition: all 0.2s ease;
+}
+
+.loading-toast-content:hover {
+  background: rgb(0 0 0 / 90%);
+  border-color: rgb(255 255 255 / 20%);
+  transform: translateY(-2px);
+  box-shadow: 0 12px 40px rgb(0 0 0 / 40%);
+}
+
+.loading-text {
+  font-size: 0.875rem;
+  font-weight: 500;
+  color: #ffffff;
+  flex: 1;
+  line-height: 1.4;
+}
+
+.loading-cancel-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 28px;
+  height: 28px;
+  background: rgb(255 255 255 / 10%);
+  border: 1px solid rgb(255 255 255 / 20%);
+  border-radius: var(--radius-md);
+  color: #ffffff;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  flex-shrink: 0;
+}
+
+.loading-cancel-button:hover {
+  background: rgb(255 255 255 / 20%);
+  border-color: rgb(255 255 255 / 30%);
+  transform: scale(1.05);
+}
+
+.loading-cancel-button:active {
+  transform: scale(0.95);
+}
+
+.loading-toast .loading-spinner {
+  border-color: rgb(255 255 255 / 30%);
+  border-top-color: #ffffff;
+  width: 18px;
+  height: 18px;
+  margin-right: 0;
+  flex-shrink: 0;
+}
+
+@keyframes slide-right {
+  from {
+    transform: translateX(100%);
+    opacity: 0;
+  }
+
+  to {
+    transform: translateX(0);
+    opacity: 1;
+  }
+}
+
+@keyframes spin {
+  0% { transform: rotate(0deg); }
+  100% { transform: rotate(360deg); }
+}
+
+/* File Info Dialog Improvements */
+.file-info-item {
+  display: flex;
+  align-items: flex-start;
+  margin-bottom: 1rem;
+  gap: 1rem;
+  padding: 0.75rem;
+  border: 1px solid var(--color-border-secondary);
+  border-radius: var(--radius-md);
+  background: var(--color-surface-elevated);
+  transition: var(--transition-fast);
+}
+
+.file-info-item:hover {
+  border-color: var(--color-border);
+  background: var(--color-surface);
+}
+
+.file-info-key {
+  flex: 0 0 30%;
+  font-weight: 600;
+  font-size: 0.875rem;
+  color: var(--color-text-primary);
+  cursor: pointer;
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  transition: var(--transition-fast);
+}
+
+.file-info-key:hover {
+  background: var(--color-accent-soft);
+  color: var(--color-accent);
+}
+
+.file-info-value {
+  flex: 1;
+  font-family: 'SF Mono', Monaco, Inconsolata, 'Roboto Mono', monospace;
+  font-size: 0.875rem;
+  line-height: 1.5;
+  word-break: break-all;
+  color: var(--color-text-secondary);
+  cursor: pointer;
+  padding: 0.25rem 0.5rem;
+  border-radius: var(--radius-sm);
+  transition: var(--transition-fast);
+  max-height: 120px;
+  overflow-y: auto;
+}
+
+.file-info-value:hover {
+  background: var(--color-accent-soft);
+  color: var(--color-text-primary);
+}
diff --git a/src/renderer/pages/Gallery.vue b/src/renderer/pages/Gallery.vue
index 11e07592..509c798a 100644
--- a/src/renderer/pages/Gallery.vue
+++ b/src/renderer/pages/Gallery.vue
@@ -659,7 +659,7 @@ const dateRange = computed({
 })
 
 function copyPlaceholder(placeholder: string) {
-  window.electron.clipboard.writeText(placeholder)
+  window.electron.clipboard.writeText(String(placeholder))
   message.success(t('pages.settings.upload.copySuccess', { content: placeholder }))
 }
 
@@ -1212,7 +1212,7 @@ async function copy(item: ImgInfo) {
     })
     updateGallery()
   }
-  window.electron.clipboard.writeText(result ? result[0] : '')
+  window.electron.clipboard.writeText(String(result ? result[0] : ''))
   message.success(t('pages.gallery.copyLinkSucceed'))
 }