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Date: Sat, 5 Sep 2026 20:47:17 +0800
Subject: [PATCH] =?UTF-8?q?task-241(admin.html=E8=A7=82=E6=84=9F=E5=AF=B9?=
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---
 admin-frontend-vue/src/styles/main.css    | 27 +++++---
 admin-frontend-vue/src/styles/theme.ts    | 20 +++---
 admin-frontend-vue/tests/task-241.test.ts | 80 +++++++++++++++++++++++
 admin-frontend-vue/tests/task-4.test.ts   | 15 +++--
 4 files changed, 116 insertions(+), 26 deletions(-)
 create mode 100644 admin-frontend-vue/tests/task-241.test.ts

diff --git a/admin-frontend-vue/src/styles/main.css b/admin-frontend-vue/src/styles/main.css
index 8555cc2f..de7e9c83 100644
--- a/admin-frontend-vue/src/styles/main.css
+++ b/admin-frontend-vue/src/styles/main.css
@@ -1,13 +1,22 @@
 :root {
-  --admin-sidebar: #192132;
-  --admin-sidebar-deep: #121827;
-  --admin-primary: #6366f1;
-  --admin-primary-soft: #eef0ff;
-  --admin-bg: #f3f5f9;
-  --admin-border: #e5e7ef;
-  --admin-text: #1f2937;
-  --admin-muted: #7b8495;
-  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
+  --admin-sidebar: #f8fbfe;
+  --admin-sidebar-deep: #edf3f9;
+  --admin-primary: #4f78a5;
+  --admin-primary-soft: #e7f0f8;
+  --admin-bg: #f4f7fb;
+  --admin-border: #d8e3ee;
+  --admin-text: #24384d;
+  --admin-muted: #5b6f83;
+  font-family: Inter, "SF Pro Display", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
+  /* Element Plus 主色对齐 admin.html 蓝白浅色皮肤（渐变主键 #5f85ad→#4f78a5） */
+  --el-color-primary: #4f78a5;
+  --el-color-primary-light-3: #7d9abf;
+  --el-color-primary-light-5: #a5bad2;
+  --el-color-primary-light-7: #cddbe6;
+  --el-color-primary-light-8: #e1e9f0;
+  --el-color-primary-light-9: #f0f4f8;
+  --el-color-primary-dark-2: #3f628a;
+  --el-border-radius-base: 6px;
 }
 
 * { box-sizing: border-box; }
diff --git a/admin-frontend-vue/src/styles/theme.ts b/admin-frontend-vue/src/styles/theme.ts
index d09484a8..5474f4e6 100644
--- a/admin-frontend-vue/src/styles/theme.ts
+++ b/admin-frontend-vue/src/styles/theme.ts
@@ -1,17 +1,17 @@
 /**
- * Admin 主题 token 单源（任务 4）：深色侧边栏 + 浅色内容区。
+ * Admin 主题 token 单源（任务 4 契约，module 13 task 241 翻转为蓝白浅色）。
  * main.css 使用同名 --admin-* CSS 变量承载渲染值；tests 用本模块校验
- * “侧边栏为暗、内容区为亮、正文对比度达标”的不变量，防止误改成浅色侧栏。
+ * “侧边栏与内容区均为浅色、主色为蓝灰、正文对比度达标”的不变量，防止回退到靛蓝深色侧栏。
  */
 export const ADMIN_THEME = {
-  sidebar: '#192132',
-  sidebarDeep: '#121827',
-  primary: '#6366f1',
-  primarySoft: '#eef0ff',
-  bg: '#f3f5f9',
-  border: '#e5e7ef',
-  text: '#1f2937',
-  muted: '#7b8495',
+  sidebar: '#f8fbfe',
+  sidebarDeep: '#edf3f9',
+  primary: '#4f78a5',
+  primarySoft: '#e7f0f8',
+  bg: '#f4f7fb',
+  border: '#d8e3ee',
+  text: '#24384d',
+  muted: '#5b6f83',
 } as const
 
 export type AdminThemeKey = keyof typeof ADMIN_THEME
diff --git a/admin-frontend-vue/tests/task-241.test.ts b/admin-frontend-vue/tests/task-241.test.ts
new file mode 100644
index 00000000..119c9517
--- /dev/null
+++ b/admin-frontend-vue/tests/task-241.test.ts
@@ -0,0 +1,80 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+import { readSource } from './helpers.ts'
+import {
+  ADMIN_THEME,
+  ADMIN_THEME_KEYS,
+  contrastRatio,
+  isDarkSurface,
+  relativeLuminance,
+  tokenHex,
+} from '../src/styles/theme.ts'
+
+// module 13 task 241：蓝白浅色基线翻转。旧「深色侧栏 + indigo」token 需整体替换为
+// admin.html 末层（L4478）生效值：浅色侧栏、蓝灰主色 #4f78a5、淡蓝内容底。
+
+test('test_task_241_baseline_normal_primary_path', () => {
+  // 正常主路径：token 命中 admin.html 蓝白浅色基线的关键 hex。
+  assert.equal(ADMIN_THEME.sidebar, '#f8fbfe', '侧栏顶色应为浅蓝白')
+  assert.equal(ADMIN_THEME.sidebarDeep, '#edf3f9', '侧栏底/加深色应为浅蓝灰')
+  assert.equal(ADMIN_THEME.primary, '#4f78a5', '主色应为蓝灰（非旧 indigo）')
+  assert.equal(ADMIN_THEME.primarySoft, '#e7f0f8', '主色软底应为浅蓝')
+  assert.equal(ADMIN_THEME.bg, '#f4f7fb', '内容底应为淡蓝')
+  assert.equal(ADMIN_THEME.text, '#24384d', '正文应为深蓝灰')
+})
+
+test('test_task_241_baseline_normal_variant_input', () => {
+  // 正常变体：侧栏与内容区均为浅色（翻转核心语义），不再要求侧栏为暗。
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), false, '侧栏顶色必须为浅色')
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebarDeep), false, '侧栏底必须为浅色')
+  assert.equal(isDarkSurface(ADMIN_THEME.bg), false, '内容区必须为浅色')
+  assert.equal(isDarkSurface(ADMIN_THEME.border), false, '边框须为亮面中性色')
+})
+
+test('test_task_241_baseline_normal_repeated_operation_is_idempotent', () => {
+  // 正常重复：浅色判定与对比度幂等。
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), isDarkSurface(ADMIN_THEME.sidebar))
+  assert.equal(relativeLuminance(ADMIN_THEME.bg), relativeLuminance(ADMIN_THEME.bg))
+})
+
+test('test_task_241_baseline_boundary_empty_input', () => {
+  // 边界：token 键集合不变（防丢语义键），全部 #rrggbb。
+  assert.ok(ADMIN_THEME_KEYS.length >= 7, '必须覆盖侧栏/内容区/正文等核心语义面')
+  for (const key of ADMIN_THEME_KEYS) {
+    assert.match(ADMIN_THEME[key], /^#[0-9a-fA-F]{6}$/, `${key} 须为 #rrggbb`)
+  }
+})
+
+test('test_task_241_baseline_boundary_single_item', () => {
+  // 边界单元素：侧栏与内容区仍是两个可区分的浅色面（不得同色）。
+  assert.notEqual(ADMIN_THEME.sidebar, ADMIN_THEME.bg, '侧栏与内容底必须可区分')
+  assert.notEqual(ADMIN_THEME.sidebar, ADMIN_THEME.sidebarDeep)
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), false)
+})
+
+test('test_task_241_baseline_boundary_limit_or_missing_field', () => {
+  // 边界上限：正文/次要文本在浅色底上满足 WCAG AA；CSS 变量名映射稳定。
+  assert.ok(contrastRatio(ADMIN_THEME.text, ADMIN_THEME.bg) >= 4.5, '正文/内容区需 ≥4.5')
+  assert.ok(contrastRatio(ADMIN_THEME.primary, ADMIN_THEME.bg) >= 3.0, '主色按钮/内容区 ≥3')
+  assert.ok(contrastRatio(ADMIN_THEME.muted, ADMIN_THEME.bg) >= 3.0, '次要文本 ≥3')
+  assert.equal(tokenHex('sidebar'), '#f8fbfe')
+})
+
+test('test_task_241_baseline_invalid_input_rejected', () => {
+  // 异常：theme.ts 不得残留旧 indigo 主色与深色侧栏值（防只改一半漂移）。
+  const ts = readSource('src/styles/theme.ts')
+  assert.equal(/#6366f1/.test(ts), false, 'theme.ts 不得残留旧 indigo #6366f1')
+  assert.equal(/#192132|#121827/.test(ts), false, 'theme.ts 不得残留旧深色侧栏')
+  assert.throws(() => tokenHex('unknown' as never), /未知 Admin 主题 token/)
+})
+
+test('test_task_241_baseline_dependency_failure_returns_actionable_message', () => {
+  // 依赖失败：theme.ts 与 main.css 渲染变量交叉校验一致（防双源漂移）。
+  const css = readSource('src/styles/main.css')
+  const missing = ADMIN_THEME_KEYS.filter((key) => {
+    const tokenVar = `--admin-${key.replace(/[A-Z]/g, (c) => `-${c.toLowerCase()}`)}`
+    return !css.includes(`${tokenVar}: ${ADMIN_THEME[key]}`)
+  })
+  assert.deepEqual(missing, [], `theme.ts 与 main.css 不一致，缺失变量: ${missing.join(', ')}`)
+  assert.equal(/@import/.test(css), false, 'main.css 不得 @import 旧后台整份样式')
+})
diff --git a/admin-frontend-vue/tests/task-4.test.ts b/admin-frontend-vue/tests/task-4.test.ts
index 6c67d694..7cfbdf9a 100644
--- a/admin-frontend-vue/tests/task-4.test.ts
+++ b/admin-frontend-vue/tests/task-4.test.ts
@@ -12,16 +12,16 @@ import {
 } from '../src/styles/theme.ts'
 
 test('test_task_004_theme_tokens_normal_primary_path', () => {
-  // 正常主路径：侧边栏与加深面是暗色，内容区/卡片底是亮色。
-  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), true, '侧边栏必须为暗色')
-  assert.equal(isDarkSurface(ADMIN_THEME.sidebarDeep), true, '侧边栏加深面必须为暗色')
+  // 正常主路径（module 13 翻转）：侧边栏与内容区均为浅色，主色为蓝灰。
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), false, '侧边栏必须为浅色')
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebarDeep), false, '侧边栏加深面必须为浅色')
   assert.equal(isDarkSurface(ADMIN_THEME.bg), false, '内容区背景必须为亮色')
   assert.equal(isDarkSurface(ADMIN_THEME.border), false, '边框须为亮面中性色')
 })
 
 test('test_task_004_theme_tokens_normal_variant_input', () => {
-  // 正常变体：强调色与软底/正文高对比，正文 token 自成一致体系。
-  assert.equal(relativeLuminance(ADMIN_THEME.primary), relativeLuminance('#6366f1'))
+  // 正常变体：主色为蓝灰基线、正文 token 自成一致体系。
+  assert.equal(relativeLuminance(ADMIN_THEME.primary), relativeLuminance('#4f78a5'))
   assert.ok(contrastRatio(ADMIN_THEME.text, ADMIN_THEME.bg) >= 4.5, '正文/内容区需满足 WCAG AA 正文')
   assert.ok(contrastRatio(ADMIN_THEME.primary, ADMIN_THEME.bg) >= 3.0, '品牌色按钮须达到 3:1')
 })
@@ -42,9 +42,10 @@ test('test_task_004_theme_tokens_boundary_empty_input', () => {
 })
 
 test('test_task_004_theme_tokens_boundary_single_item', () => {
-  // 边界单元素：单个中性边界 token 与内容区可区分；侧边栏深于内容区。
+  // 边界单元素：单个中性边界 token 与内容区可区分；侧栏为独立浅色面（不再要求深于内容区）。
   assert.notEqual(ADMIN_THEME.border, ADMIN_THEME.bg)
-  assert.ok(relativeLuminance(ADMIN_THEME.sidebar) < relativeLuminance(ADMIN_THEME.bg))
+  assert.notEqual(ADMIN_THEME.sidebar, ADMIN_THEME.bg)
+  assert.equal(isDarkSurface(ADMIN_THEME.sidebar), false, '侧栏须保持浅色')
 })
 
 test('test_task_004_theme_tokens_boundary_limit_or_missing_field', () => {