diff --git a/src/__tests__/themeEdit.spec.ts b/src/__tests__/themeEdit.spec.ts
index 89236cf..dc6865c 100644
--- a/src/__tests__/themeEdit.spec.ts
+++ b/src/__tests__/themeEdit.spec.ts
@@ -8,21 +8,34 @@ import { resolveEditableTheme } from "@/utils/themeEdit";
  */
 describe("resolveEditableTheme 站点编辑主题归一（任务三）", () => {
     it("注册中的主题原值保留且不告警", () => {
-        expect(resolveEditableTheme("mint-breeze", ["default", "mint-breeze"])).toEqual({
-            theme: "mint-breeze",
+        expect(resolveEditableTheme("scholar-blue", ["default", "scholar-blue"])).toEqual({
+            theme: "scholar-blue",
             unregistered: false,
         });
     });
 
+    it("docs/20 E：下架主题解析为保留主题 + colorScheme 预设（不误报未注册）", () => {
+        expect(resolveEditableTheme("classic-red", ["default", "scholar-blue", "campus-glow"])).toEqual({
+            theme: "default",
+            unregistered: false,
+            aliasColorScheme: "classic-red",
+        });
+        expect(resolveEditableTheme("poly-blue", ["default", "scholar-blue", "campus-glow"])).toEqual({
+            theme: "scholar-blue",
+            unregistered: false,
+            aliasColorScheme: "poly",
+        });
+    });
+
     it("未注册主题保留原值并标记 unregistered（不再归一 default）", () => {
-        expect(resolveEditableTheme("ghost-theme", ["default", "mint-breeze"])).toEqual({
+        expect(resolveEditableTheme("ghost-theme", ["default", "scholar-blue"])).toEqual({
             theme: "ghost-theme",
             unregistered: true,
         });
     });
 
     it("空主题归一 default（站点未选过皮肤的场景）", () => {
-        expect(resolveEditableTheme(undefined, ["default", "mint-breeze"])).toEqual({
+        expect(resolveEditableTheme(undefined, ["default", "scholar-blue"])).toEqual({
             theme: "default",
             unregistered: false,
         });
diff --git a/src/utils/themeEdit.ts b/src/utils/themeEdit.ts
index 8d9c2ae..217db61 100644
--- a/src/utils/themeEdit.ts
+++ b/src/utils/themeEdit.ts
@@ -5,17 +5,38 @@
  * 新行为：保留原值交服务端注册表校验（保存未注册主题会被明确拒绝），仅提示告警。
  */
 export interface EditableTheme {
-    /** 编辑表单主题值（未注册时保留原值，不再偷偷归一 default） */
+    /** 编辑表单主题值（未注册时保留原值，不再偷偷归一 default；下架别名解析为保留主题） */
     theme: string;
     /** 主题未在注册列表中（保存将被服务端拒绝，需提示用户改选或先上传） */
     unregistered: boolean;
+    /** docs/20 E：下架主题别名解析到的 colorScheme 预设（保存后保持原配色；非别名为 undefined） */
+    aliasColorScheme?: string;
 }
 
+/** docs/20 E：下架主题别名表（与后端 ThemeRegistry.DEPRECATED_ALIASES 同构，两侧同步维护） */
+const DEPRECATED_ALIASES: Record<string, { target: string; colorScheme: string }> = {
+    "blue-white": { target: "default", colorScheme: "blue-white" },
+    "classic-red": { target: "default", colorScheme: "classic-red" },
+    "fresh-mint": { target: "default", colorScheme: "fresh-mint" },
+    "warm-kinder": { target: "default", colorScheme: "warm-kinder" },
+    "academic-navy": { target: "scholar-blue", colorScheme: "navy" },
+    "campus-azure": { target: "scholar-blue", colorScheme: "azure" },
+    "poly-blue": { target: "scholar-blue", colorScheme: "poly" },
+    "agri-forest": { target: "scholar-blue", colorScheme: "agri" },
+    "jade-normal": { target: "scholar-blue", colorScheme: "jade" },
+    "mint-breeze": { target: "scholar-blue", colorScheme: "mint" },
+};
+
 export function resolveEditableTheme(rowTheme: string | undefined, themeNames: string[]): EditableTheme {
     const value = rowTheme || "default";
     if (!themeNames.length) {
         // 列表加载失败/为空：无法判定注册状态，保留原值且不误报（由服务端校验兜底）
         return { theme: value, unregistered: false };
     }
+    // docs/20 E：下架主题 → 呈现归一后的保留主题（与服务端保存归一化一致，不误报"未注册"）
+    const alias = DEPRECATED_ALIASES[value];
+    if (alias && themeNames.includes(alias.target)) {
+        return { theme: alias.target, unregistered: false, aliasColorScheme: alias.colorScheme };
+    }
     return { theme: value, unregistered: !themeNames.includes(value) };
 }