修复翻译按钮不显示的问题

src/components/PromptEditor.vue

@@ -1120,7 +1120,6 @@ function isRemoveDisabled(token: string): boolean {
           <div class="pe-title-group">
             <span>提示词映射（双击修改）</span>
             <button 
-              v-if="unmappedTokens.length > 0" 
               class="pe-auto-trans-btn" 
               @click="() => { translationTargetToken = null; showTranslationPopup = true; }"
               title="自动翻译未映射词条"

src/components/PromptQuickAdd.vue

@@ -35,28 +35,21 @@ function displayTrans(tag: PromptTag) {
   <div class="pqa-root">
     <!-- Categories -->
     <div class="pqa-categories">
-      <button 
-        v-for="(c, i) in categories" 
-        :key="c.id"
-        class="pqa-tab"
-        :class="{ active: i === store.selectedCategoryIndex }"
-        @click="selectCategory(i)"
-      >
+      <button v-for="(c, i) in categories" :key="c.id" class="pqa-tab"
+        :class="{ active: i === store.selectedCategoryIndex }" @click="selectCategory(i)">
         {{ c.name }}
       </button>
     </div>
 
     <!-- Groups -->
     <div class="pqa-groups" v-if="currentCategory?.groups.length">
-      <button 
-        v-for="(g, i) in currentCategory.groups" 
-        :key="g.id"
-        class="pqa-group-tab"
-        :class="{ active: i === store.selectedGroupIndex }"
-        :style="{ '--group-color': g.color || 'var(--color-text-secondary)' }"
-        @click="selectGroup(i)"
-        @mousedown.prevent
-      >
+      <button v-for="(g, i) in currentCategory.groups" :key="g.id" class="pqa-group-tab"
+        :class="{ active: i === store.selectedGroupIndex }" :style="{
+          '--group-color':
+            g.color && g.color !== 'rgba(0, 0, 0, .0)'
+              ? g.color
+              : 'var(--color-text-secondary)'
+        }" @click="selectGroup(i)" @mousedown.prevent>
         <span class="pqa-dot"></span>
         {{ g.name }}
       </button>
@@ -64,14 +57,8 @@ function displayTrans(tag: PromptTag) {
 
     <!-- Tags -->
     <div class="pqa-tags">
-      <button 
-        v-for="tag in filteredTags" 
-        :key="tag.key"
-        class="pqa-tag"
-        @click="onTagClick(tag)"
-        @mousedown.prevent
-        :title="tag.key"
-      >
+      <button v-for="tag in filteredTags" :key="tag.key" class="pqa-tag" @click="onTagClick(tag)" @mousedown.prevent
+        :title="tag.key">
         <span class="pqa-tag-text">{{ displayTrans(tag) }}</span>
         <span class="pqa-tag-sub" v-if="displayTrans(tag) !== tag.key">{{ tag.key }}</span>
       </button>
@@ -106,10 +93,12 @@ function displayTrans(tag: PromptTag) {
 .pqa-categories::-webkit-scrollbar {
   height: 8px;
 }
+
 .pqa-categories::-webkit-scrollbar-thumb {
   background: var(--color-border);
   border-radius: 4px;
 }
+
 .pqa-categories::-webkit-scrollbar-thumb:hover {
   background: var(--color-text-tertiary);
 }
@@ -148,10 +137,12 @@ function displayTrans(tag: PromptTag) {
 .pqa-groups::-webkit-scrollbar {
   height: 8px;
 }
+
 .pqa-groups::-webkit-scrollbar-thumb {
   background: var(--color-border);
   border-radius: 4px;
 }
+
 .pqa-groups::-webkit-scrollbar-thumb:hover {
   background: var(--color-text-tertiary);
 }

src/components/TranslationPopup.vue

@@ -17,7 +17,7 @@
             共 {{ tokens.length }} 个未映射词条
           </div>
           <div class="tp-actions">
-            <button @click="startTranslation" :disabled="loading" class="tp-btn primary">
+            <button @click="startTranslation" :disabled="loading || tokens.length === 0" class="tp-btn primary">
               {{ loading ? '翻译中...' : '开始翻译' }}
             </button>
           </div>
@@ -26,13 +26,17 @@
         <div class="tp-list">
           <div class="tp-list-header">
             <label class="tp-checkbox-wrapper">
-              <input type="checkbox" :checked="isAllSelected" @change="toggleSelectAll" />
+              <input type="checkbox" :checked="isAllSelected" @change="toggleSelectAll" :disabled="tokens.length === 0" />
               <span>全选</span>
             </label>
             <span>原词</span>
             <span>翻译结果 (可直接编辑)</span>
           </div>
           
+          <div v-if="tokens.length === 0" class="tp-empty-state">
+            暂无未映射词条
+          </div>
+
           <div v-for="token in tokens" :key="token" class="tp-item" :class="{ selected: selected.has(token) }">
             <label class="tp-checkbox-wrapper">
               <input 
@@ -333,6 +337,16 @@ function apply() {
   flex-direction: column;
 }
 
+.tp-empty-state {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: var(--color-text-tertiary);
+  font-size: 0.875rem;
+  padding: 2rem;
+}
+
 /* Scrollbar styling */
 .tp-list::-webkit-scrollbar {
   width: 8px;