diff --git a/backend/database.py b/backend/database.py
index b62f382..56bf3bc 100644
--- a/backend/database.py
+++ b/backend/database.py
@@ -221,6 +221,8 @@ def init_db():
         c.execute("ALTER TABLE oils ADD COLUMN retail_price REAL")
     if "is_active" not in oil_cols:
         c.execute("ALTER TABLE oils ADD COLUMN is_active INTEGER DEFAULT 1")
+    if "en_name" not in oil_cols:
+        c.execute("ALTER TABLE oils ADD COLUMN en_name TEXT DEFAULT ''")
 
     # Migration: add new columns to category_modules if missing
     cat_cols = [row[1] for row in c.execute("PRAGMA table_info(category_modules)").fetchall()]
diff --git a/backend/main.py b/backend/main.py
index 0931c4c..9786964 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -79,6 +79,7 @@ class OilIn(BaseModel):
     bottle_price: float
     drop_count: int
     retail_price: Optional[float] = None
+    en_name: Optional[str] = None
 
 
 class IngredientIn(BaseModel):
@@ -649,7 +650,7 @@ def impersonate(body: dict, user=Depends(require_role("admin"))):
 @app.get("/api/oils")
 def list_oils():
     conn = get_db()
-    rows = conn.execute("SELECT name, bottle_price, drop_count, retail_price, is_active FROM oils ORDER BY name").fetchall()
+    rows = conn.execute("SELECT name, bottle_price, drop_count, retail_price, is_active, en_name FROM oils ORDER BY name").fetchall()
     conn.close()
     return [dict(r) for r in rows]
 
@@ -658,9 +659,10 @@ def list_oils():
 def upsert_oil(oil: OilIn, user=Depends(require_role("admin", "senior_editor"))):
     conn = get_db()
     conn.execute(
-        "INSERT INTO oils (name, bottle_price, drop_count, retail_price) VALUES (?, ?, ?, ?) "
-        "ON CONFLICT(name) DO UPDATE SET bottle_price=excluded.bottle_price, drop_count=excluded.drop_count, retail_price=excluded.retail_price",
-        (oil.name, oil.bottle_price, oil.drop_count, oil.retail_price),
+        "INSERT INTO oils (name, bottle_price, drop_count, retail_price, en_name) VALUES (?, ?, ?, ?, ?) "
+        "ON CONFLICT(name) DO UPDATE SET bottle_price=excluded.bottle_price, drop_count=excluded.drop_count, "
+        "retail_price=excluded.retail_price, en_name=COALESCE(excluded.en_name, oils.en_name)",
+        (oil.name, oil.bottle_price, oil.drop_count, oil.retail_price, oil.en_name),
     )
     log_audit(conn, user["id"], "upsert_oil", "oil", oil.name, oil.name,
               json.dumps({"bottle_price": oil.bottle_price, "drop_count": oil.drop_count}))
diff --git a/frontend/src/components/RecipeDetailOverlay.vue b/frontend/src/components/RecipeDetailOverlay.vue
index c1112ff..da08c3d 100644
--- a/frontend/src/components/RecipeDetailOverlay.vue
+++ b/frontend/src/components/RecipeDetailOverlay.vue
@@ -19,7 +19,7 @@
             class="action-btn action-btn-sm"
             @click="viewMode = 'editor'"
           >编辑</button>
-          <button class="detail-close-btn" @click="$emit('close')">✕</button>
+          <button class="detail-close-btn" @click="handleClose">✕</button>
         </div>
 
         <!-- Language toggle -->
@@ -36,6 +36,17 @@
           >English</button>
         </div>
 
+        <!-- Volume selector -->
+        <div class="card-volume-toggle">
+          <button
+            v-for="(drops, ml) in VOLUME_DROPS"
+            :key="ml"
+            class="volume-btn"
+            :class="{ active: selectedCardVolume === ml }"
+            @click="onCardVolumeChange(ml)"
+          >{{ ml === '单次' ? '单次' : ml + 'ml' }}</button>
+        </div>
+
         <!-- Card image (rendered by html2canvas) -->
         <div v-show="!cardImageUrl" ref="cardRef" class="export-card">
           <!-- Brand overlay layers -->
@@ -91,8 +102,8 @@
             <div v-if="dilutionDesc" class="card-dilution">{{ dilutionDesc }}</div>
 
             <!-- Note -->
-            <div v-if="recipe.note" class="card-note">
-              {{ cardLang === 'en' ? '📝 ' + recipe.note : '📝 ' + recipe.note }}
+            <div v-if="displayRecipe.note" class="card-note">
+              {{ '📝 ' + displayRecipe.note }}
             </div>
 
             <!-- Total cost bar -->
@@ -162,7 +173,7 @@
           <div class="editor-header-actions">
             <button class="action-btn action-btn-primary action-btn-sm" @click="saveRecipe">💾 保存</button>
             <button class="action-btn action-btn-sm" @click="previewFromEditor">👁 预览</button>
-            <button class="detail-close-btn" @click="$emit('close')">✕</button>
+            <button class="detail-close-btn" @click="handleEditorClose">✕</button>
           </div>
         </div>
 
@@ -215,10 +226,29 @@
 
           <!-- Add ingredient row -->
           <div v-if="showAddRow" class="add-ingredient-row">
-            <select v-model="newIngOil" class="editor-select">
-              <option value="">— 选择精油 —</option>
-              <option v-for="name in oilsStore.oilNames" :key="name" :value="name">{{ name }}</option>
-            </select>
+            <div class="oil-autocomplete">
+              <input
+                v-model="oilSearchQuery"
+                @focus="showOilDropdown = true"
+                @blur="closeOilDropdown"
+                @input="newIngOil = ''"
+                class="editor-input oil-search-input"
+                placeholder="搜索精油名称或英文..."
+                autocomplete="off"
+              />
+              <div v-if="showOilDropdown && filteredOilsForAdd.length" class="oil-dropdown">
+                <div
+                  v-for="name in filteredOilsForAdd"
+                  :key="name"
+                  class="oil-dropdown-item"
+                  :class="{ 'is-selected': newIngOil === name }"
+                  @mousedown.prevent="selectNewOil(name)"
+                >
+                  <span>{{ name }}</span>
+                  <span class="oil-dropdown-en">{{ oilEn(name) }}</span>
+                </div>
+              </div>
+            </div>
             <input
               v-model.number="newIngDrops"
               type="number"
@@ -228,7 +258,7 @@
               class="editor-drops"
             />
             <button class="action-btn action-btn-primary action-btn-sm" @click="confirmAddIngredient">确认</button>
-            <button class="action-btn action-btn-sm" @click="showAddRow = false">取消</button>
+            <button class="action-btn action-btn-sm" @click="cancelAddRow">取消</button>
           </div>
           <button v-else class="add-row-btn" @click="showAddRow = true">+ 添加精油</button>
         </div>
@@ -384,11 +414,20 @@ const customRecipeNameEn = ref('')
 const customOilNameEn = ref({})
 const generatingImage = ref(false)
 
+// ---- Preview override: holds unsaved editor state when user clicks "预览" ----
+const previewOverride = ref(null)
+
 // ---- Source recipe ----
 const recipe = computed(() =>
   recipesStore.recipes[props.recipeIndex] || { name: '', ingredients: [], tags: [], note: '' }
 )
 
+// ---- Display recipe: previewOverride when in preview mode, otherwise saved recipe ----
+const displayRecipe = computed(() => {
+  if (!previewOverride.value) return recipe.value
+  return { ...recipe.value, ...previewOverride.value }
+})
+
 const canEditThisRecipe = computed(() => {
   if (authStore.canEdit) return true
   if (authStore.isLoggedIn && recipe.value._owner_id === authStore.user.id) return true
@@ -411,7 +450,7 @@ function scaleIngredients(ingredients, volume) {
 
 // Card ingredients: scaled to selected volume, coconut oil excluded from display
 const scaledCardIngredients = computed(() =>
-  scaleIngredients(recipe.value.ingredients, selectedCardVolume.value)
+  scaleIngredients(displayRecipe.value.ingredients, selectedCardVolume.value)
 )
 
 const cardIngredients = computed(() =>
@@ -559,12 +598,12 @@ function copyText() {
   })
   const total = priceInfo.value.cost
   const text = [
-    recipe.value.name,
+    displayRecipe.value.name,
     '---',
     ...lines,
     '---',
     `总成本: ${total}`,
-    recipe.value.note ? `备注: ${recipe.value.note}` : '',
+    displayRecipe.value.note ? `备注: ${displayRecipe.value.note}` : '',
   ].filter(Boolean).join('\n')
 
   navigator.clipboard.writeText(text).then(() => {
@@ -602,9 +641,9 @@ function getCardOilName(name) {
 
 function getCardRecipeName() {
   if (cardLang.value === 'en') {
-    return customRecipeNameEn.value || recipe.value.en_name || recipeNameEn(recipe.value.name)
+    return customRecipeNameEn.value || displayRecipe.value.en_name || recipeNameEn(displayRecipe.value.name)
   }
-  return recipe.value.name
+  return displayRecipe.value.name
 }
 
 // ---- Favorite ----
@@ -657,6 +696,36 @@ const newIngOil = ref('')
 const newIngDrops = ref(1)
 const newTagInput = ref('')
 
+// Oil autocomplete for add-ingredient row
+const oilSearchQuery = ref('')
+const showOilDropdown = ref(false)
+
+const filteredOilsForAdd = computed(() => {
+  const q = oilSearchQuery.value.trim().toLowerCase()
+  if (!q) return oilsStore.oilNames
+  return oilsStore.oilNames.filter(n => {
+    const en = oilEn(n).toLowerCase()
+    return n.includes(q) || en.startsWith(q) || en.includes(q)
+  })
+})
+
+function selectNewOil(name) {
+  newIngOil.value = name
+  oilSearchQuery.value = name
+  showOilDropdown.value = false
+}
+
+function closeOilDropdown() {
+  setTimeout(() => { showOilDropdown.value = false }, 150)
+}
+
+function cancelAddRow() {
+  showAddRow.value = false
+  newIngOil.value = ''
+  oilSearchQuery.value = ''
+  newIngDrops.value = 1
+}
+
 // Volume & dilution
 const selectedVolume = ref('single')
 const customVolumeValue = ref(100)
@@ -737,6 +806,7 @@ function confirmAddIngredient() {
   }
   editIngredients.value.push({ oil: newIngOil.value, drops: newIngDrops.value })
   newIngOil.value = ''
+  oilSearchQuery.value = ''
   newIngDrops.value = 1
   showAddRow.value = false
 }
@@ -829,9 +899,44 @@ function setCoconutDrops(drops) {
   }
 }
 
+// Handle close from card view — if previewing unsaved data, ask user
+async function handleClose() {
+  if (previewOverride.value !== null) {
+    const save = await showConfirm('还有未保存的修改，是否保存？', { okText: '保存', cancelText: '不保存' })
+    if (save) {
+      viewMode.value = 'editor'
+      await nextTick()
+      await saveRecipe()
+      return
+    }
+    previewOverride.value = null
+  }
+  emit('close')
+}
+
+// Handle close from editor view
+async function handleEditorClose() {
+  if (previewOverride.value !== null) {
+    // Came from preview, back to preview without saving
+    previewOverride.value = null
+    viewMode.value = 'card'
+    cardImageUrl.value = null
+    nextTick(() => generateCardImage())
+    return
+  }
+  emit('close')
+}
+
 function previewFromEditor() {
-  // Temporarily update recipe view with editor data, switch to card
-  // We just switch to card mode; the card shows the saved recipe
+  // Capture current editor state and show it in card view
+  previewOverride.value = {
+    name: editName.value.trim() || recipe.value.name,
+    note: editNote.value.trim(),
+    tags: [...editTags.value],
+    ingredients: editIngredients.value
+      .filter(i => i.oil && i.drops > 0)
+      .map(i => ({ oil: i.oil, drops: i.drops })),
+  }
   viewMode.value = 'card'
   cardImageUrl.value = null
   nextTick(() => generateCardImage())
@@ -860,7 +965,11 @@ async function saveRecipe() {
     // Reload recipes so the data is fresh when re-opened
     await recipesStore.loadRecipes()
     ui.showToast('保存成功')
-    emit('close')
+    // Go to card view instead of closing
+    previewOverride.value = null
+    viewMode.value = 'card'
+    cardImageUrl.value = null
+    nextTick(() => generateCardImage())
   } catch (e) {
     ui.showToast('保存失败: ' + (e?.message || '未知错误'))
   }
@@ -1683,6 +1792,70 @@ async function saveRecipe() {
   cursor: not-allowed;
 }
 
+/* Card volume toggle */
+.card-volume-toggle {
+  display: flex;
+  gap: 6px;
+  flex-wrap: wrap;
+  justify-content: center;
+  margin-bottom: 12px;
+}
+
+/* Oil autocomplete */
+.oil-autocomplete {
+  position: relative;
+  flex: 1;
+  min-width: 140px;
+}
+
+.oil-search-input {
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.oil-dropdown {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  right: 0;
+  background: #fff;
+  border: 1.5px solid var(--sage, #7a9e7e);
+  border-radius: 10px;
+  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
+  max-height: 220px;
+  overflow-y: auto;
+  z-index: 100;
+  margin-top: 4px;
+}
+
+.oil-dropdown-item {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 9px 14px;
+  cursor: pointer;
+  font-size: 13px;
+  color: var(--text-dark, #2c2416);
+  border-bottom: 1px solid var(--border, #e0d4c0);
+  transition: background 0.1s;
+}
+
+.oil-dropdown-item:last-child {
+  border-bottom: none;
+}
+
+.oil-dropdown-item:hover,
+.oil-dropdown-item.is-selected {
+  background: var(--sage-mist, #eef4ee);
+}
+
+.oil-dropdown-en {
+  font-size: 11px;
+  color: var(--text-light, #9a8570);
+  margin-left: 8px;
+  white-space: nowrap;
+}
+
 /* Responsive */
 @media (max-width: 600px) {
   .detail-panel {
diff --git a/frontend/src/stores/oils.js b/frontend/src/stores/oils.js
index f890b0e..1509776 100644
--- a/frontend/src/stores/oils.js
+++ b/frontend/src/stores/oils.js
@@ -69,18 +69,20 @@ export const useOilsStore = defineStore('oils', () => {
         dropCount: oil.drop_count,
         retailPrice: oil.retail_price ?? null,
         isActive: oil.is_active ?? true,
+        enName: oil.en_name ?? null,
       }
     }
     oils.value = newOils
     oilsMeta.value = newMeta
   }
 
-  async function saveOil(name, bottlePrice, dropCount, retailPrice) {
+  async function saveOil(name, bottlePrice, dropCount, retailPrice, enName = null) {
     await api.post('/api/oils', {
       name,
       bottle_price: bottlePrice,
       drop_count: dropCount,
       retail_price: retailPrice,
+      en_name: enName,
     })
     await loadOils()
   }
diff --git a/frontend/src/views/OilReference.vue b/frontend/src/views/OilReference.vue
index 2074e8d..2d8bc6a 100644
--- a/frontend/src/views/OilReference.vue
+++ b/frontend/src/views/OilReference.vue
@@ -75,6 +75,7 @@
       <h3 class="section-title">添加精油</h3>
       <div class="form-row">
         <input v-model="newOilName" class="form-input" placeholder="精油名称" />
+        <input v-model="newOilEnName" class="form-input" placeholder="英文名 (English)" />
         <input v-model.number="newBottlePrice" class="form-input-sm" type="number" placeholder="瓶价 ¥" />
         <select v-model="newVolume" class="form-select">
           <option value="2.5">2.5ml (46滴)</option>
@@ -129,7 +130,7 @@
         v-for="name in filteredOilNames"
         :key="name"
         class="oil-chip"
-        :class="{ 'oil-chip--inactive': getMeta(name)?.isActive === false }"
+        :class="{ 'oil-chip--inactive': getMeta(name)?.isActive === false, 'oil-chip--active': activeChip === name }"
         @click="openOilDetail(name)"
       >
         <span v-if="getOilCard(name)" class="oil-badge" title="有知识卡片">📖</span>
@@ -159,7 +160,7 @@
         <div class="oil-chip-volume" v-if="getMeta(name)?.dropCount">
           {{ volumeLabel(getMeta(name).dropCount) }}
         </div>
-        <div class="oil-actions" v-if="auth.canManage" @click.stop>
+        <div class="oil-actions" v-if="auth.canManage" @click.stop @touchstart.stop="toggleChip(name)">
           <button class="btn-icon-sm" @click="editOil(name)" title="编辑">✏️</button>
           <button class="btn-icon-sm" @click="removeOil(name)" title="删除">🗑️</button>
         </div>
@@ -271,6 +272,10 @@
           <button class="btn-close" @click="editingOilName = null">✕</button>
         </div>
         <div class="modal-body">
+          <div class="form-group">
+            <label>英文名</label>
+            <input v-model="editOilEnName" class="form-input" type="text" placeholder="English name" />
+          </div>
           <div class="form-group">
             <label>瓶价 (¥)</label>
             <input v-model.number="editBottlePrice" class="form-input" type="number" />
@@ -334,6 +339,7 @@ const activeCard = ref(null)
 
 // Add oil form
 const newOilName = ref('')
+const newOilEnName = ref('')
 const newBottlePrice = ref(null)
 const newVolume = ref('5')
 const newCustomDrops = ref(null)
@@ -345,6 +351,14 @@ const editBottlePrice = ref(0)
 const editVolume = ref('5')
 const editDropCount = ref(0)
 const editRetailPrice = ref(null)
+const editOilEnName = ref('')
+
+// Active chip (for mobile hover)
+const activeChip = ref(null)
+
+function toggleChip(name) {
+  activeChip.value = activeChip.value === name ? null : name
+}
 
 // Volume-to-drops mapping
 const VOLUME_OPTIONS = {
@@ -407,9 +421,13 @@ function getMeta(name) {
 }
 
 function getEnglishName(name) {
-  // First check the oil card for English name
+  // 1. Oil card has priority
   const card = getOilCard(name)
   if (card && card.en) return card.en
+  // 2. Stored en_name in meta
+  const meta = oils.oilsMeta[name]
+  if (meta?.enName) return meta.enName
+  // 3. Static translation map
   return oilEn(name)
 }
 
@@ -466,10 +484,12 @@ async function addOil() {
       newOilName.value.trim(),
       newBottlePrice.value || 0,
       dropCount,
-      newRetailPrice.value || null
+      newRetailPrice.value || null,
+      newOilEnName.value.trim() || null
     )
     ui.showToast(`已添加: ${newOilName.value}`)
     newOilName.value = ''
+    newOilEnName.value = ''
     newBottlePrice.value = null
     newVolume.value = '5'
     newCustomDrops.value = null
@@ -487,6 +507,7 @@ function editOil(name) {
   editVolume.value = dropCountToVolume(dc)
   editDropCount.value = dc
   editRetailPrice.value = meta?.retailPrice || null
+  editOilEnName.value = meta?.enName || getEnglishName(name) || ''
 }
 
 async function saveEditOil() {
@@ -496,7 +517,8 @@ async function saveEditOil() {
       editingOilName.value,
       editBottlePrice.value,
       dropCount,
-      editRetailPrice.value
+      editRetailPrice.value,
+      editOilEnName.value.trim() || null
     )
     ui.showToast('已更新')
     editingOilName.value = null
@@ -982,7 +1004,8 @@ function saveContraImage() {
   transition: opacity 0.15s;
 }
 
-.oil-chip:hover .oil-actions {
+.oil-chip:hover .oil-actions,
+.oil-chip--active .oil-actions {
   opacity: 1;
 }