diff --git a/apps/desktop-client/src/renderer/lib/media-catalog.ts b/apps/desktop-client/src/renderer/lib/media-catalog.ts
index 91255e8..98f1c43 100644
--- a/apps/desktop-client/src/renderer/lib/media-catalog.ts
+++ b/apps/desktop-client/src/renderer/lib/media-catalog.ts
@@ -169,3 +169,16 @@ export const desktopMonitoringMediaCatalog: DesktopMediaDefinition[] = aiPlatfor
 }));
 
 export const desktopMediaCatalog = [...desktopPublishMediaCatalog, ...desktopMonitoringMediaCatalog];
+
+export function getDesktopMediaDefinition(platform: string): DesktopMediaDefinition | null {
+  const key = (platform ?? "").toLowerCase();
+  return desktopMediaCatalog.find((item) => item.id === key) ?? null;
+}
+
+export function translateDesktopPlatform(platform: string): string {
+  return getDesktopMediaDefinition(platform)?.label ?? "未知平台";
+}
+
+export function desktopPlatformShortName(platform: string): string {
+  return getDesktopMediaDefinition(platform)?.shortName ?? "未";
+}
diff --git a/apps/desktop-client/src/renderer/views/HomeView.vue b/apps/desktop-client/src/renderer/views/HomeView.vue
index d75616e..9c6fa68 100644
--- a/apps/desktop-client/src/renderer/views/HomeView.vue
+++ b/apps/desktop-client/src/renderer/views/HomeView.vue
@@ -4,21 +4,12 @@ import { DesktopOutlined, LinkOutlined, ClockCircleOutlined, AlertOutlined } fro
 
 import StatusBadge from "../components/StatusBadge.vue";
 import { useDesktopRuntime } from "../composables/useDesktopRuntime";
-import { formatClock, formatRelativeTime, titleCaseToken } from "../lib/formatters";
+import { formatClock, formatRelativeTime } from "../lib/formatters";
+import { translateDesktopPlatform } from "../lib/media-catalog";
 import { healthTone } from "../lib/runtime-ui";
 
 function translatePlatform(platform: string) {
-  const map: Record<string, string> = {
-    toutiaohao: "头条号",
-    bilibili: "哔哩哔哩",
-    xiaohongshu: "小红书",
-    douyin: "抖音",
-    kuaishou: "快手",
-    wechat_oa: "微信公众号",
-    baijiahao: "百家号",
-    zhihu: "知乎",
-  };
-  return map[platform?.toLowerCase()] || titleCaseToken(platform);
+  return translateDesktopPlatform(platform);
 }
 
 function blockedAccountLabel(account: { authState: string; authReason: string | null }) {
diff --git a/apps/desktop-client/src/renderer/views/PublishManagementView.vue b/apps/desktop-client/src/renderer/views/PublishManagementView.vue
index bc2ca3b..e322216 100644
--- a/apps/desktop-client/src/renderer/views/PublishManagementView.vue
+++ b/apps/desktop-client/src/renderer/views/PublishManagementView.vue
@@ -14,8 +14,8 @@ import { computed, onMounted, onUnmounted, ref, watch } from "vue";
 
 import StatusBadge from "../components/StatusBadge.vue";
 import { useDesktopRuntime } from "../composables/useDesktopRuntime";
-import { formatDateTime, formatRelativeTime, titleCaseToken } from "../lib/formatters";
-import { desktopPublishMediaCatalog } from "../lib/media-catalog";
+import { formatDateTime, formatRelativeTime } from "../lib/formatters";
+import { desktopPlatformShortName, desktopPublishMediaCatalog, translateDesktopPlatform } from "../lib/media-catalog";
 import { normalizePublisherErrorMessage } from "../../shared/publisher-errors";
 
 const PAGE_SIZE = 10;
@@ -52,7 +52,7 @@ function platformMeta(platform: string) {
 }
 
 function translatePlatform(platform: string) {
-  return platformMeta(platform)?.label || titleCaseToken(platform);
+  return platformMeta(platform)?.label || translateDesktopPlatform(platform);
 }
 
 function platformLogo(platform: string): string | null {
@@ -64,7 +64,7 @@ function platformAccent(platform: string): string {
 }
 
 function platformShortName(platform: string): string {
-  return platformMeta(platform)?.shortName ?? titleCaseToken(platform).slice(0, 1);
+  return platformMeta(platform)?.shortName ?? desktopPlatformShortName(platform);
 }
 
 function statusLabel(status: DesktopTaskInfo["status"]): string {
diff --git a/apps/desktop-client/src/renderer/views/TasksView.vue b/apps/desktop-client/src/renderer/views/TasksView.vue
index 892f5c1..e8ae4e8 100644
--- a/apps/desktop-client/src/renderer/views/TasksView.vue
+++ b/apps/desktop-client/src/renderer/views/TasksView.vue
@@ -4,21 +4,12 @@ import { computed } from "vue";
 import StatusBadge from "../components/StatusBadge.vue";
 import SurfaceCard from "../components/SurfaceCard.vue";
 import { useDesktopRuntime } from "../composables/useDesktopRuntime";
-import { formatRelativeTime, titleCaseToken } from "../lib/formatters";
+import { formatRelativeTime } from "../lib/formatters";
+import { translateDesktopPlatform } from "../lib/media-catalog";
 import { taskTone } from "../lib/runtime-ui";
 
 function translatePlatform(platform: string) {
-  const map: Record<string, string> = {
-    toutiaohao: "头条号",
-    bilibili: "哔哩哔哩",
-    xiaohongshu: "小红书",
-    douyin: "抖音",
-    kuaishou: "快手",
-    wechat_oa: "微信公众号",
-    baijiahao: "百家号",
-    zhihu: "知乎",
-  };
-  return map[platform?.toLowerCase()] || titleCaseToken(platform);
+  return translateDesktopPlatform(platform);
 }
 
 function translateTaskStatus(status: string) {