diff --git a/frontend/src/components/CascadeFilter.vue b/frontend/src/components/CascadeFilter.vue
index 3d7293c..0274b07 100644
--- a/frontend/src/components/CascadeFilter.vue
+++ b/frontend/src/components/CascadeFilter.vue
@@ -9,19 +9,26 @@ export interface CascadeValue {
 
 const model = defineModel<CascadeValue>({ default: () => ({ company_id: undefined, platform_id: undefined, store_id: undefined }) })
 
-const companies = ref<{ id: number; name: string; label: string }[]>([])
-const platforms = ref<{ id: number; developer_id: number }[]>([])
-const stores = ref<{ id: number; company_id: number; platform_id: number; name: string; label: string }[]>([])
+const companies = ref<{ id: number; name: string; label: string | null }[]>([])
+const platforms = ref<{ id: number; name: string; label: string | null; developer_id?: number }[]>([])
+const stores = ref<{ id: number; company_id: number; platform_id: number; name: string; label: string | null }[]>([])
+
+/** 清洗 label：过滤 "null" 字符串，优先 label 其次 name */
+function cleanLabel(label: string | null | undefined, name: string | undefined, fallback: string): string {
+  if (label && label !== 'null') return label
+  if (name) return name
+  return fallback
+}
 
 const loadingCompanies = ref(false)
 const loadingStores = ref(false)
 
 const companyOptions = computed(() =>
-  companies.value.map((c) => ({ value: c.id, label: c.label || c.name })),
+  companies.value.map((c) => ({ value: c.id, label: cleanLabel(c.label, c.name, `公司 #${c.id}`) })),
 )
 
 const platformOptions = computed(() =>
-  platforms.value.map((p) => ({ value: p.id, label: `平台 #${p.id}` })),
+  platforms.value.map((p) => ({ value: p.id, label: cleanLabel(p.label, p.name, `平台 #${p.id}`) })),
 )
 
 const storeOptions = computed(() => {
@@ -32,7 +39,7 @@ const storeOptions = computed(() => {
   if (model.value.platform_id) {
     filtered = filtered.filter((s) => s.platform_id === model.value.platform_id)
   }
-  return filtered.map((s) => ({ value: s.id, label: s.label || s.name }))
+  return filtered.map((s) => ({ value: s.id, label: cleanLabel(s.label, s.name, `店铺 #${s.id}`) }))
 })
 
 function handleCompanyChange(val: unknown) {
@@ -85,44 +92,53 @@ onMounted(() => {
 </script>
 
 <template>
-  <div class="flex gap-2 items-center">
-    <a-select
-      :value="model.company_id"
-      :options="companyOptions"
-      placeholder="选择公司"
-      allow-clear
-      show-search
-      :filter-option="(input: string, option: unknown) =>
-        ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
-      "
-      :loading="loadingCompanies"
-      style="min-width: 160px"
-      @change="handleCompanyChange"
-    />
-    <a-select
-      :value="model.platform_id"
-      :options="platformOptions"
-      placeholder="选择平台"
-      allow-clear
-      show-search
-      :filter-option="(input: string, option: unknown) =>
-        ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
-      "
-      style="min-width: 160px"
-      @change="handlePlatformChange"
-    />
-    <a-select
-      :value="model.store_id"
-      :options="storeOptions"
-      placeholder="选择店铺"
-      allow-clear
-      show-search
-      :filter-option="(input: string, option: unknown) =>
-        ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
-      "
-      :loading="loadingStores"
-      style="min-width: 160px"
-      @change="handleStoreChange"
-    />
+  <div class="flex gap-4 items-center">
+    <div class="flex items-center gap-1">
+      <span class="text-gray-600 text-sm whitespace-nowrap">公司</span>
+      <a-select
+        :value="model.company_id"
+        :options="companyOptions"
+        placeholder="选择公司"
+        allow-clear
+        show-search
+        :filter-option="(input: string, option: unknown) =>
+          ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
+        "
+        :loading="loadingCompanies"
+        style="min-width: 160px"
+        @change="handleCompanyChange"
+      />
+    </div>
+    <div class="flex items-center gap-1">
+      <span class="text-gray-600 text-sm whitespace-nowrap">平台</span>
+      <a-select
+        :value="model.platform_id"
+        :options="platformOptions"
+        placeholder="选择平台"
+        allow-clear
+        show-search
+        :filter-option="(input: string, option: unknown) =>
+          ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
+        "
+        style="min-width: 160px"
+        @change="handlePlatformChange"
+      />
+    </div>
+    <div class="flex items-center gap-1">
+      <span class="text-gray-600 text-sm whitespace-nowrap">店铺</span>
+      <a-select
+        :value="model.store_id"
+        :options="storeOptions"
+        placeholder="选择店铺"
+        allow-clear
+        show-search
+        :filter-option="(input: string, option: unknown) =>
+          ((option as { label: string }).label ?? '').toLowerCase().includes(input.toLowerCase())
+        "
+        :loading="loadingStores"
+        style="min-width: 160px"
+        @change="handleStoreChange"
+      />
+    </div>
   </div>
 </template>
diff --git a/frontend/src/pages/orders/index.vue b/frontend/src/pages/orders/index.vue
index ff85e41..f1b5474 100644
--- a/frontend/src/pages/orders/index.vue
+++ b/frontend/src/pages/orders/index.vue
@@ -167,7 +167,7 @@ async function handleViewDetail(record: { id: number }) {
     <h2 class="text-xl font-semibold mb-4">订单管理</h2>
 
     <!-- Filter area -->
-    <a-card class="mb-4">
+    <a-card class="mb-6">
       <a-form layout="inline" @submit.prevent="handleSearch">
         <a-form-item>
           <CascadeFilter v-model="store.cascadeValue" />
diff --git a/frontend/src/pages/products/index.vue b/frontend/src/pages/products/index.vue
index 468343a..f5cd785 100644
--- a/frontend/src/pages/products/index.vue
+++ b/frontend/src/pages/products/index.vue
@@ -121,7 +121,7 @@ async function handleViewDetail(record: { id: number }) {
     <h2 class="text-xl font-semibold mb-4">产品管理</h2>
 
     <!-- Filter area -->
-    <a-card class="mb-4">
+    <a-card class="mb-6">
       <a-form layout="inline" @submit.prevent="handleSearch">
         <a-form-item>
           <CascadeFilter v-model="store.cascadeValue" />
diff --git a/frontend/src/pages/refunds/index.vue b/frontend/src/pages/refunds/index.vue
index 1146f9c..3d29a6d 100644
--- a/frontend/src/pages/refunds/index.vue
+++ b/frontend/src/pages/refunds/index.vue
@@ -141,7 +141,7 @@ async function handleViewDetail(record: { id: number }) {
     <h2 class="text-xl font-semibold mb-4">退款管理</h2>
 
     <!-- Filter area -->
-    <a-card class="mb-4">
+    <a-card class="mb-6">
       <a-form layout="inline" @submit.prevent="handleSearch">
         <a-form-item>
           <CascadeFilter v-model="store.cascadeValue" />
diff --git a/frontend/src/stores/order.ts b/frontend/src/stores/order.ts
index 740d8b9..49f5d18 100644
--- a/frontend/src/stores/order.ts
+++ b/frontend/src/stores/order.ts
@@ -127,24 +127,24 @@ export const useOrderStore = defineStore('order', () => {
 
   // 名称映射数据
   const companies = ref<LookupItem[]>([])
-  const platforms = ref<{ id: number; developer_id: number }[]>([])
+  const platforms = ref<{ id: number; name: string; label?: string; developer_id: number }[]>([])
   const stores = ref<(LookupItem & { company_id: number; platform_id: number })[]>([])
 
   const companyMap = computed(
-    () => new Map(companies.value.map((c) => [c.id, c.label || c.name])),
+    () => new Map(companies.value.map((c) => [c.id, (c.label && c.label !== 'null') ? c.label : c.name])),
   )
   const platformMap = computed(
-    () => new Map(platforms.value.map((p) => [p.id, `平台 #${p.id}`])),
+    () => new Map(platforms.value.map((p) => [p.id, (p.label && p.label !== 'null') ? p.label : (p.name || `平台 #${p.id}`)])),
   )
   const storeMap = computed(
-    () => new Map(stores.value.map((s) => [s.id, s.label || s.name])),
+    () => new Map(stores.value.map((s) => [s.id, (s.label && s.label !== 'null') ? s.label : s.name])),
   )
 
   async function loadLookups() {
     try {
       const [c, p, s] = await Promise.all([
         api.get<LookupItem[]>('/api/v1/companies'),
-        api.get<{ id: number; developer_id: number }[]>('/api/v1/platforms'),
+        api.get<{ id: number; name: string; label?: string; developer_id: number }[]>('/api/v1/platforms'),
         api.get<(LookupItem & { company_id: number; platform_id: number })[]>(
           '/api/v1/stores',
         ),
diff --git a/frontend/src/stores/product.ts b/frontend/src/stores/product.ts
index 25e77a1..5178065 100644
--- a/frontend/src/stores/product.ts
+++ b/frontend/src/stores/product.ts
@@ -85,19 +85,18 @@ export const useProductStore = defineStore('product', () => {
 
   // 名称映射数据
   const companies = ref<LookupItem[]>([])
-  const platforms = ref<{ id: number; developer_id: number }[]>([])
+  const platforms = ref<{ id: number; name: string; label?: string; developer_id: number }[]>([])
   const stores = ref<(LookupItem & { company_id: number; platform_id: number })[]>([])
 
-  const companyMap = computed(() => new Map(companies.value.map((c) => [c.id, c.label || c.name])))
-  // platforms API 不返回 name 字段，使用 ID 作为显示标签
-  const platformMap = computed(() => new Map(platforms.value.map((p) => [p.id, `平台 #${p.id}`])))
-  const storeMap = computed(() => new Map(stores.value.map((s) => [s.id, s.label || s.name])))
+  const companyMap = computed(() => new Map(companies.value.map((c) => [c.id, (c.label && c.label !== 'null') ? c.label : c.name])))
+  const platformMap = computed(() => new Map(platforms.value.map((p) => [p.id, (p.label && p.label !== 'null') ? p.label : (p.name || `平台 #${p.id}`)])))
+  const storeMap = computed(() => new Map(stores.value.map((s) => [s.id, (s.label && s.label !== 'null') ? s.label : s.name])))
 
   async function loadLookups() {
     try {
       const [c, p, s] = await Promise.all([
         api.get<LookupItem[]>('/api/v1/companies'),
-        api.get<{ id: number; developer_id: number }[]>('/api/v1/platforms'),
+        api.get<{ id: number; name: string; label?: string; developer_id: number }[]>('/api/v1/platforms'),
         api.get<(LookupItem & { company_id: number; platform_id: number })[]>('/api/v1/stores'),
       ])
       companies.value = c
diff --git a/frontend/src/stores/refund.ts b/frontend/src/stores/refund.ts
index c345362..1235ca2 100644
--- a/frontend/src/stores/refund.ts
+++ b/frontend/src/stores/refund.ts
@@ -33,24 +33,24 @@ export const useRefundStore = defineStore('refund', () => {
 
   // 名称映射数据
   const companies = ref<LookupItem[]>([])
-  const platforms = ref<{ id: number; developer_id: number }[]>([])
+  const platforms = ref<{ id: number; name: string; label?: string; developer_id: number }[]>([])
   const stores = ref<(LookupItem & { company_id: number; platform_id: number })[]>([])
 
   const companyMap = computed(
-    () => new Map(companies.value.map((c) => [c.id, c.label || c.name])),
+    () => new Map(companies.value.map((c) => [c.id, (c.label && c.label !== 'null') ? c.label : c.name])),
   )
   const platformMap = computed(
-    () => new Map(platforms.value.map((p) => [p.id, `平台 #${p.id}`])),
+    () => new Map(platforms.value.map((p) => [p.id, (p.label && p.label !== 'null') ? p.label : (p.name || `平台 #${p.id}`)])),
   )
   const storeMap = computed(
-    () => new Map(stores.value.map((s) => [s.id, s.label || s.name])),
+    () => new Map(stores.value.map((s) => [s.id, (s.label && s.label !== 'null') ? s.label : s.name])),
   )
 
   async function loadLookups() {
     try {
       const [c, p, s] = await Promise.all([
         api.get<LookupItem[]>('/api/v1/companies'),
-        api.get<{ id: number; developer_id: number }[]>('/api/v1/platforms'),
+        api.get<{ id: number; name: string; label?: string; developer_id: number }[]>('/api/v1/platforms'),
         api.get<(LookupItem & { company_id: number; platform_id: number })[]>(
           '/api/v1/stores',
         ),