Enforce tokenized workbench visuals across themes

Why: Independent review found component-local color derivation, a private transition, and missing dark/molv coverage in the visual candidate.
Evidence: Frontend design guard passes and 19 Playwright scenarios cover light, dark, molv, and 320-1920px layouts.
Impact: Keeps the approved visual direction while moving color ownership to @ui tokens and removing private motion.
Refs: Agent-System-Dev feature/workbench-visual-redesign

e2e/work-companion.playwright.ts

@@ -22,7 +22,7 @@ const confirmation = work('confirm1', 'action_required', { kind: 'confirm', titl
 })
 
 async function fixture(page: Page, initialCards: ActivityCard[] = [progress], fontSize = 14,
-  history?: { events: StreamEvent[]; cardRef?: string; savedParts?: Part[] }) {
+  history?: { events: StreamEvent[]; cardRef?: string; savedParts?: Part[] }, theme: 'light' | 'dark' | 'molv' = 'light') {
   let cards = [...initialCards]
   let actionCount = 0
   let releaseAction: (() => void) | undefined
@@ -31,9 +31,9 @@ async function fixture(page: Page, initialCards: ActivityCard[] = [progress], fo
   let uploadNumber = 0
   const errors: string[] = []
   page.on('pageerror', error => errors.push(error.message))
-  await page.addInitScript(({ fontSize }) => {
+  await page.addInitScript(({ fontSize, theme }) => {
     localStorage.setItem('as.conv', 'c1')
-    localStorage.setItem('as.ui', JSON.stringify({ theme: 'light', fontSize, rightCollapsed: true, leftWidth: 260, rightWidth: 360 }))
+    localStorage.setItem('as.ui', JSON.stringify({ theme, fontSize, rightCollapsed: true, leftWidth: 260, rightWidth: 360 }))
     const streams: { url: string; emit: (event: unknown) => void }[] = []
     class TestEventSource {
       onopen: (() => void) | null = null
@@ -49,7 +49,7 @@ async function fixture(page: Page, initialCards: ActivityCard[] = [progress], fo
       close() {}
     }
     Object.assign(window, { EventSource: TestEventSource, __workStreams: streams })
-  }, { fontSize })
+  }, { fontSize, theme })
   await page.route('**/api/**', async route => {
     const request = route.request()
     const url = new URL(request.url())
@@ -141,6 +141,92 @@ test('places the full work card only in the desktop work pane', async ({ page })
   expect(state.errors).toEqual([])
 })
 
+test('uses a focused reading column and a compact authored-message shape', async ({ page }) => {
+  await page.setViewportSize({ width: 1920, height: 1080 })
+  const state = await fixture(page)
+  await page.getByRole('button', { name: '打开工作', exact: true }).click()
+
+  const conversation = page.locator('.chat-body .msg').first()
+  const authored = page.locator('.chat-body .msg.user').first()
+  const answer = page.locator('.chat-body .msg.assistant').first()
+  const [conversationBox, authoredBox, answerBox] = await Promise.all([
+    conversation.boundingBox(), authored.boundingBox(), answer.boundingBox(),
+  ])
+  expect(conversationBox).not.toBeNull()
+  expect(authoredBox).not.toBeNull()
+  expect(answerBox).not.toBeNull()
+  expect(conversationBox!.width).toBeLessThanOrEqual(840)
+  expect(authoredBox!.width).toBeLessThanOrEqual(680)
+  expect(authoredBox!.x + authoredBox!.width).toBeCloseTo(answerBox!.x + answerBox!.width, 0)
+
+  const surfaces = await page.evaluate(() => {
+    const pick = (selector: string) => {
+      const element = document.querySelector(selector)
+      if (!element) throw new Error(`missing ${selector}`)
+      const style = getComputedStyle(element)
+      return {
+        background: style.backgroundColor,
+        color: style.color,
+        borderRadius: Number.parseFloat(style.borderRadius),
+        paddingLeft: Number.parseFloat(style.paddingLeft),
+      }
+    }
+    return {
+      chrome: pick('.companion-topbar'),
+      context: pick('.left-nav'),
+      conversation: pick('.main'),
+      answer: pick('.msg.assistant'),
+      authored: pick('.msg.user .bubble'),
+    }
+  })
+  const rgb = (value: string) => value.match(/[\d.]+/g)?.slice(0, 3).map(Number) ?? [0, 0, 0]
+  const distance = (a: string, b: string) => rgb(a).reduce((sum, value, index) => sum + Math.abs(value - rgb(b)[index]), 0)
+  expect(distance(surfaces.chrome.background, surfaces.conversation.background)).toBeGreaterThan(300)
+  expect(distance(surfaces.context.background, surfaces.conversation.background)).toBeGreaterThan(300)
+  expect(distance(surfaces.authored.background, surfaces.answer.background)).toBeGreaterThan(300)
+  expect(surfaces.answer.borderRadius).toBeGreaterThanOrEqual(12)
+  expect(surfaces.answer.paddingLeft).toBeGreaterThanOrEqual(20)
+
+  const activeCard = page.locator('.right-panel .acard.status-active')
+  await expect(activeCard).toBeVisible()
+  const cardStyle = await activeCard.evaluate(element => {
+    const style = getComputedStyle(element)
+    return { background: style.backgroundColor, borderLeftWidth: style.borderLeftWidth }
+  })
+  const panelBackground = await page.locator('.right-panel').evaluate(element => getComputedStyle(element).backgroundColor)
+  expect(cardStyle.background).not.toBe(panelBackground)
+  expect(Number.parseFloat(cardStyle.borderLeftWidth)).toBeGreaterThanOrEqual(3)
+  expect(state.errors).toEqual([])
+})
+
+for (const theme of ['light', 'dark', 'molv'] as const) {
+  test(`keeps the workbench frame legible in ${theme}`, async ({ page }) => {
+    await page.setViewportSize({ width: 1440, height: 960 })
+    const state = await fixture(page, [progress], 14, undefined, theme)
+    await page.getByRole('button', { name: '打开工作', exact: true }).click()
+    const surfaces = await page.evaluate(() => ['.companion-topbar', '.left-nav', '.msg.user .bubble', '.msg.assistant'].map(selector => {
+      const element = document.querySelector(selector)
+      if (!element) throw new Error(`missing ${selector}`)
+      const style = getComputedStyle(element)
+      return { selector, foreground: style.color, background: style.backgroundColor }
+    }))
+    const channels = (value: string) => value.match(/[\d.]+/g)?.slice(0, 3).map(Number) ?? [0, 0, 0]
+    const luminance = (value: string) => {
+      const linear = channels(value).map(channel => {
+        const normalized = channel / 255
+        return normalized <= 0.04045 ? normalized / 12.92 : ((normalized + 0.055) / 1.055) ** 2.4
+      })
+      return 0.2126 * linear[0] + 0.7152 * linear[1] + 0.0722 * linear[2]
+    }
+    for (const surface of surfaces) {
+      const lighter = Math.max(luminance(surface.foreground), luminance(surface.background))
+      const darker = Math.min(luminance(surface.foreground), luminance(surface.background))
+      expect((lighter + 0.05) / (darker + 0.05), `${surface.selector} contrast in ${theme}`).toBeGreaterThanOrEqual(4.5)
+    }
+    expect(state.errors).toEqual([])
+  })
+}
+
 test('preserves the selected material, physical scroll and focus when background work finishes', async ({ page }) => {
   await page.setViewportSize({ width: 1440, height: 960 })
   const tabbed = work('work1', 'active', { body: [...progress.body!, {

src/companion-conversation.css

@@ -3,9 +3,11 @@
   display: grid;
   grid-template-columns: minmax(0, 1fr) auto auto;
   gap: 12px;
-  padding: 16px 24px;
+  min-height: 64px;
+  padding: 12px 24px;
+  background: var(--bg-panel);
 }
-.work-companion-chat .chat-title { font-size: var(--fs-ui-xl); font-weight: 650; letter-spacing: -0.02em; }
+.work-companion-chat .chat-title { font-size: var(--fs-ui-xl); font-weight: 650; letter-spacing: -0.025em; }
 .work-companion-chat .chat-title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
 .work-companion-chat .chat-header > .mk-col-root { position: relative; }
 .work-companion-chat .chat-header > .mk-col-root > .mk-col {
@@ -37,9 +39,58 @@
 .companion-setting select { max-width: 100%; padding: 4px 8px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: var(--fs-ui-caption); }
 .companion-setting .session-note { flex: 1 1 100%; min-width: 0; width: 100%; }
 .companion-setting-note { flex: 1 1 100%; margin: 0; color: var(--text-dim); font-size: var(--fs-ui-sm); line-height: 1.6; }
-.work-companion-chat .chat-body { padding: 24px clamp(16px, 5vw, 64px); }
-.work-companion-chat .input-bar { padding: 8px clamp(16px, 5vw, 64px) 16px; }
-.work-companion-chat .input-row { flex-direction: column; align-items: stretch; padding: 12px; box-shadow: none; }
+.work-companion-chat .chat-body {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 36px clamp(20px, 6vw, 96px) 48px;
+  scroll-padding-block: 36px;
+}
+.work-companion-chat .chat-body > * {
+  width: min(100%, 840px);
+  margin-left: auto;
+  margin-right: auto;
+}
+.work-companion-chat .chat-body > .msg { margin-bottom: 32px; }
+.work-companion-chat .chat-body > .msg.user {
+  width: min(80%, 680px);
+  margin-right: max(0px, calc((100% - 840px) / 2));
+  margin-left: auto;
+}
+.work-companion-chat .chat-body > .msg.assistant {
+  padding: 20px 24px 16px;
+  border: 1px solid var(--border);
+  border-radius: var(--radius-xl);
+  background: var(--bg-raised);
+  box-shadow: var(--shadow-md);
+}
+.work-companion-chat .msg-role {
+  margin-bottom: 10px;
+  color: var(--text-dim);
+  font-size: var(--fs-ui-caption);
+  font-weight: 600;
+}
+.work-companion-chat .msg.user .msg-role { justify-content: flex-end; }
+.work-companion-chat .msg.assistant .role-mark {
+  background: var(--primary);
+  border-color: var(--primary);
+  color: var(--primary-foreground);
+}
+.work-companion-chat .msg.assistant .part-text { color: var(--text); font-size: var(--fs-ui-base); line-height: 1.8; }
+.work-companion-chat .input-bar {
+  padding: 12px clamp(20px, 6vw, 96px) 20px;
+  border-top: 1px solid var(--border-soft);
+  background: var(--bg-panel);
+}
+.work-companion-chat .input-bar > * { width: min(100%, 840px); margin-left: auto; margin-right: auto; }
+.work-companion-chat .input-row {
+  flex-direction: column;
+  align-items: stretch;
+  padding: 14px;
+  border-color: var(--border-strong);
+  border-radius: var(--radius-xl);
+  box-shadow: var(--shadow-md);
+}
 .work-companion-chat .input-row textarea { box-sizing: border-box; width: 100%; min-width: 0; padding: 4px; line-height: 1.6; font-size: var(--fs-ui-base); }
 .companion-compose-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; min-width: 0; }
 .companion-compose-spacer { flex: 1; }
@@ -48,7 +99,7 @@
 .companion-add-material:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
 .companion-file-input { position: absolute; width: 1px; height: 1px; padding: 0; margin: 0; overflow: hidden; clip-path: inset(50%); }
 .companion-input-hint { font-size: var(--fs-ui-sm); color: var(--text-dim); }
-.companion-operation-trigger { margin-bottom: 8px; }
+.companion-operation-trigger { margin-bottom: 8px; color: var(--text-dim); }
 .companion-operation-body { padding: 12px; margin-bottom: 12px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--bg-panel); }
 .companion-operation-body .companion-setting { margin-bottom: 8px; }
 .work-companion-chat .input-status { flex-wrap: wrap; gap: 4px 8px; padding: 8px 0; line-height: 1.5; }
@@ -58,31 +109,63 @@
 .companion-remove-material { display: inline-flex; align-items: center; justify-content: center; padding: 4px; color: var(--text-dim); background: transparent; border: 0; border-radius: var(--radius-xs); cursor: pointer; }
 .companion-remove-material:hover { background: var(--bg-hover); color: var(--text); }
 .work-companion-chat .attach-chip { max-width: 100%; overflow-wrap: anywhere; }
-.companion-empty { min-height: 240px; height: 100%; text-align: center; line-height: 1.7; }
-.companion-empty-title { color: var(--text); font-size: var(--fs-ui-xl); }
+.companion-empty { min-height: 320px; height: 100%; text-align: center; line-height: 1.7; }
+.companion-empty .es-mark { width: 52px; height: 52px; margin-bottom: 8px; background: var(--bg-panel); box-shadow: var(--shadow-md); }
+.companion-empty-title { color: var(--text); font-size: var(--fs-ui-xl); font-weight: 650; letter-spacing: -0.02em; }
 .companion-examples { display: grid; gap: 8px; width: min(100%, 32rem); margin-top: 12px; }
-.companion-example { padding: 12px 16px; background: var(--bg-panel); border: 1px solid var(--border-soft); border-radius: var(--radius); color: var(--text-dim); font: inherit; text-align: left; cursor: pointer; }
-.companion-example:hover { color: var(--text); background: var(--bg-hover); }
+.companion-example { padding: 14px 16px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-lg); color: var(--text-dim); font: inherit; text-align: left; cursor: pointer; }
+.companion-example:hover { color: var(--text); background: var(--bg-raised); border-color: var(--border-strong); }
 .conversation-work { margin: 24px 0 16px; min-width: 0; }
 .conversation-work-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-bottom: 12px; color: var(--text-dim); font-size: var(--fs-ui-caption); }
 .conversation-work-heading > span:first-child { color: var(--text); font-size: var(--fs-ui-lg); font-weight: 650; }
 .conversation-work-current, .conversation-work-history { display: grid; gap: 12px; min-width: 0; }
 .conversation-work-more { padding: 12px 0; color: var(--text-dim); font-size: var(--fs-ui-caption); }
 .conversation-work .acard { margin: 0; }
-.conversation-action-anchor { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; width: 100%; margin-top: 8px; padding: 8px 12px; border: 1px solid var(--border-soft); border-radius: var(--radius); background: var(--bg-panel); color: var(--text); text-align: left; font-size: var(--fs-ui-caption); cursor: pointer; }
+.conversation-action-anchor { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; width: 100%; margin-top: 12px; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-panel); color: var(--text); text-align: left; font-size: var(--fs-ui-caption); cursor: pointer; }
 .conversation-action-anchor > span:last-child { color: var(--accent-text); }
 .conversation-action-anchor:hover { background: var(--bg-hover); }
 .work-companion-chat .live-bar { flex-wrap: wrap; }
 .work-companion-chat .part-error-detail, .work-companion-chat .hitl-detail { overflow-wrap: anywhere; white-space: pre-wrap; }
 @media (max-width: 540px) {
   .work-companion-chat .chat-header { padding: 12px 16px; gap: 8px; }
+  .work-companion-chat .chat-body { padding: 24px 16px 32px; }
+  .work-companion-chat .chat-body > .msg.user { width: 92%; margin-right: 0; }
+  .work-companion-chat .input-bar { padding: 10px 12px 14px; }
   .companion-input-hint { display: none; }
   .companion-empty { min-height: 200px; }
   .work-companion-chat .hitl-choices { grid-template-columns: minmax(0, 1fr); }
 }
 
-.work-companion-chat .msg.user .bubble { background: var(--bg-active); }
+.work-companion-chat .msg.user .bubble {
+  padding: 14px 18px;
+  background: var(--primary);
+  border: 1px solid var(--primary);
+  border-radius: var(--radius-lg) var(--radius-lg) var(--radius-xs) var(--radius-lg);
+  color: var(--primary-foreground);
+  line-height: 1.7;
+  box-shadow: var(--shadow-md);
+}
+.work-companion-chat .process-collapse {
+  margin: 12px 0 16px;
+  border-color: var(--border);
+  background: var(--bg-panel);
+}
+.work-companion-chat .process-collapse .process-collapse-summary { padding: 9px 14px; color: var(--text-dim); }
+.work-companion-chat .process-collapse .process-collapse-summary:hover { background: var(--bg-hover); color: var(--text); }
+.work-companion-chat .process-collapse .body { padding: 8px 14px 14px; border-top: 1px solid var(--border-soft); }
 .companion-message-copy { padding: 4px 8px; border: 0; background: transparent; color: var(--text-dim); font-size: var(--fs-ui-caption); border-radius: var(--radius-sm); cursor: pointer; }
 .companion-message-copy:hover { background: var(--bg-hover); color: var(--text); }
-.companion-message-actions { display: flex; flex-wrap: wrap; gap: 8px; padding: 8px 0; }
+.companion-message-actions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  padding: 8px 0;
+  opacity: 0;
+}
+.work-companion-chat .msg:hover .companion-message-actions,
+.work-companion-chat .msg:focus-within .companion-message-actions { opacity: 1; }
 .work-companion-chat .msg-tools { gap: 4px; }
+
+@media (hover: none) {
+  .companion-message-actions { opacity: 1; }
+}

src/companion-shell.css

@@ -9,6 +9,20 @@
 .companion-app .left-nav,
 .companion-app .main,
 .companion-app .right-panel { min-height: 0; max-width: 100%; overflow: hidden; }
+.companion-app .left-nav,
+.companion-app .companion-topbar {
+  --text: var(--workbench-chrome-text);
+  --text-dim: var(--workbench-chrome-dim);
+  --text-faint: var(--workbench-chrome-faint);
+  --bg-hover: var(--workbench-chrome-hover);
+  --bg-active: var(--workbench-chrome-active);
+  --border: var(--workbench-chrome-active);
+  --border-soft: var(--workbench-chrome-hover);
+  --border-strong: var(--workbench-chrome-dim);
+  background: var(--workbench-chrome);
+  color: var(--workbench-chrome-text);
+  border-color: var(--workbench-chrome-hover);
+}
 .companion-app .left-nav { transition: none; }
 .companion-app .left-nav[hidden],
 .companion-app .right-panel[hidden],
@@ -16,20 +30,58 @@
 .companion-app .icon-only[hidden] { display: none !important; }
 
 .shell-context-content { display: flex; flex-direction: column; flex: 1; min-height: 0; min-width: 0; }
-.companion-app .companion-topbar { height: auto; min-height: 44px; gap: 8px; padding: 4px 12px; }
+.companion-app .companion-topbar {
+  height: auto;
+  min-height: 52px;
+  gap: 12px;
+  padding: 8px 16px;
+  box-shadow: var(--shadow-md);
+}
 .topbar-identity { display: flex; align-items: center; gap: 8px; min-width: 0; }
-.companion-topbar .topbar-name { font-size: var(--fs-ui-base); font-weight: 650; white-space: nowrap; }
-.companion-app .right-panel .tabs { padding: 4px 12px 0; }
-.companion-app .right-panel .tab { font-size: var(--fs-ui-base); font-weight: 600; }
-.companion-app .right-panel .tab-body { padding: 16px; }
-.companion-app .right-panel .inbox-zone-label { color: var(--text); font-size: var(--fs-ui-caption); font-weight: 600; margin-top: 16px; }
-.companion-app .right-panel .acard.status-active { border-left: 3px solid var(--work-focus-border); background: var(--work-focus-surface); }
-.companion-app .right-panel .acard-title { color: var(--text); font-size: var(--fs-ui-lg); }
+.companion-topbar .topbar-name { font-size: var(--fs-ui-lg); font-weight: 650; letter-spacing: -0.02em; white-space: nowrap; }
+.companion-app .right-panel .tabs {
+  min-height: 52px;
+  align-items: flex-end;
+  gap: 16px;
+  padding: 0 20px;
+  background: var(--bg-panel);
+}
+.companion-app .right-panel .tab {
+  min-height: 52px;
+  padding: 0 2px;
+  color: var(--text-dim);
+  font-size: var(--fs-ui-base);
+  font-weight: 600;
+}
+.companion-app .right-panel .tab:hover { color: var(--text); }
+.companion-app .right-panel .tab-body { padding: 20px; }
+.companion-app .right-panel .inbox-zone-label { margin: 20px 0 8px; color: var(--text); font-size: var(--fs-ui-caption); font-weight: 650; }
+.companion-app .right-panel .acard { margin: 12px 0; border-color: var(--border); padding: 18px; }
+.companion-app .right-panel .acard.status-active {
+  border-left: 3px solid var(--work-focus-border);
+  background: var(--work-focus-surface);
+  box-shadow: var(--shadow-md);
+}
+.companion-app .right-panel .acard-title { color: var(--text); font-size: var(--fs-ui-lg); line-height: 1.4; }
+.companion-app .right-panel .acard-status {
+  display: inline-flex;
+  width: fit-content;
+  margin-top: 8px;
+  padding: 2px 8px;
+  border-radius: var(--radius-full);
+  background: var(--bg-active);
+  color: var(--text);
+  font-weight: 600;
+}
+.companion-app .right-panel .acard-body { margin-top: 16px; }
+.companion-app .right-panel .acard-summary-row { grid-template-columns: minmax(64px, auto) minmax(0, 1fr); gap: 12px; margin: 12px 0; }
+.companion-app .right-panel .acard-summary-row > span,
+.companion-app .right-panel .acard-summary-label { color: var(--text-dim); font-weight: 600; }
 .companion-app .right-panel .acard-summary-row p,
 .companion-app .right-panel .acard-findings li { color: var(--text); font-size: var(--fs-ui-base); }
 .companion-topbar .brand-mark {
-  background: var(--primary-sidebar);
-  color: var(--primary-sidebar-foreground);
+  background: var(--workbench-chrome-text);
+  color: var(--workbench-chrome);
   box-shadow: none;
   border-radius: var(--radius-sm) !important;
 }
@@ -45,39 +97,52 @@
   border: none;
   border-radius: var(--radius-sm);
   background: none;
-  color: var(--text-sidebar-dim);
+  color: var(--workbench-chrome-dim);
   font-size: var(--fs-ui-caption);
   cursor: pointer;
   white-space: nowrap;
 }
 .shell-nav-button:hover,
-.shell-return:hover { background: var(--bg-hover); color: var(--text-sidebar); }
-.shell-nav-button[aria-pressed='true'] { background: var(--bg-active); color: var(--text-sidebar); }
+.shell-return:hover { background: var(--workbench-chrome-hover); color: var(--workbench-chrome-text); }
+.shell-nav-button[aria-pressed='true'] { background: var(--workbench-chrome-active); color: var(--workbench-chrome-text); }
 .shell-nav-button svg,
 .shell-return svg { flex: none; }
 .shell-back-icon { transform: rotate(180deg); }
 .shell-pending {
   padding: 0 4px;
   border-radius: var(--radius-xs);
-  background: var(--bg-active);
-  color: var(--text-sidebar);
+  background: var(--workbench-chrome-active);
+  color: var(--workbench-chrome-text);
   font-size: var(--fs-ui-xs);
   font-variant-numeric: tabular-nums;
 }
 
-.companion-app .tsb-brand { gap: 4px; padding: 16px 12px 8px; }
-.companion-app .tsb-projrow { min-height: 36px; height: auto; border-color: transparent; background: none; padding: 4px 8px; }
+.companion-app .tsb-brand { gap: 8px; padding: 16px 14px 12px; border-bottom: 1px solid var(--border-soft); }
+.companion-app .tsb-projrow { min-height: 40px; height: auto; border-color: transparent; background: none; padding: 6px 10px; }
 .companion-app .tsb-projrow:hover { background: var(--bg-hover); }
-.companion-app .tsb-projrow-name { flex: 1; }
+.companion-app .tsb-projrow-name { flex: 1; font-size: var(--fs-ui-base); font-weight: 650; }
 .companion-app .tsb-projrow-stage { max-width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-dim); border-radius: var(--radius-sm); }
 .companion-app .tsb-iconbtn { width: 32px; height: 32px; flex: none; }
-.companion-app .tsb-actions { padding: 8px 12px 12px; gap: 12px; }
-.companion-app .tsb-newtask { min-height: 40px; height: auto; box-shadow: none; transition: none; }
+.companion-app .tsb-actions { padding: 12px 14px; gap: 10px; }
+.companion-app .tsb-newtask {
+  min-height: 40px;
+  height: auto;
+  background: var(--workbench-chrome-text);
+  color: var(--workbench-chrome);
+  box-shadow: none;
+  transition: none;
+}
+.companion-app .tsb-newtask:hover { background: var(--workbench-chrome-text); }
 .companion-app .tsb-newtask-main { justify-content: center; padding: 8px 12px; }
-.companion-app .tsb-newtask-caret { width: 36px; flex: none; }
-.companion-app .tsb-search { min-height: 36px; height: auto; padding: 8px 12px; }
-.companion-app .tsb-orgrow { padding-bottom: 4px; }
-.companion-app .tsb-task { min-height: 40px; height: auto; gap: 4px; transition: none; }
+.companion-app .tsb-newtask-caret { width: 36px; flex: none; border-left-color: var(--workbench-chrome-inverse-border); }
+.companion-app .tsb-newtask-caret:hover { background: var(--workbench-chrome-inverse-hover); }
+.companion-app .tsb-search { min-height: 38px; height: auto; padding: 8px 12px; background: var(--workbench-chrome-hover); border-color: var(--workbench-chrome-hover); }
+.companion-app .tsb-search:focus-within { background: var(--workbench-chrome-active); border-color: var(--workbench-chrome-dim); }
+.companion-app .tsb-orgrow { padding: 4px 16px 8px; }
+.companion-app .tsb-seclabel { color: var(--text-dim); font-size: var(--fs-ui-sm); font-weight: 600; }
+.companion-app .tsb-scroll { padding: 0 8px 12px; }
+.companion-app .tsb-task { min-height: 42px; height: auto; gap: 6px; padding: 0 10px; transition: none; }
+.companion-app .tsb-task.active { background: var(--bg-active); color: var(--text); }
 .companion-app .tsb-task-open {
   display: flex;
   align-items: center;
@@ -93,6 +158,7 @@
   cursor: pointer;
 }
 .companion-app .tsb-task-open > svg { flex: none; }
+.companion-app .tsb-task-t { font-size: var(--fs-ui-base); }
 .companion-app .tsb-task-tm { color: var(--text-dim); }
 .companion-app .tsb-task:focus-within .tsb-row-acts { display: inline-flex; }
 .companion-app .tsb-task:focus-within .tsb-task-tm { display: none; }
@@ -111,11 +177,32 @@
   cursor: pointer;
 }
 .companion-app .tsb-row-menu:hover { background: var(--bg-hover); color: var(--text); }
-.companion-app .tsb-bottom { padding: 8px 12px; gap: 4px; }
-.companion-app .tsb-tool { min-height: 36px; }
+.companion-app .tsb-bottom { padding: 10px 12px; gap: 4px; background: var(--workbench-chrome-hover); }
+.companion-app .tsb-tool { min-height: 38px; padding: 7px 10px; }
 .companion-app .tsb-avatar { background: var(--bg-active); color: var(--text); box-shadow: none; border-radius: var(--radius-full); }
 .companion-app .tsb-user-sub { color: var(--text-dim); }
-.companion-app .tsb-user { min-height: 44px; height: auto; }
+.companion-app .tsb-footer { padding: 10px 12px; }
+.companion-app .tsb-user { min-height: 46px; height: auto; }
+.companion-app .right-panel .inbox-scope {
+  gap: 4px;
+  margin: 14px 20px 0;
+  padding: 4px;
+  border: 1px solid var(--border-soft);
+  border-radius: var(--radius);
+  background: var(--bg);
+}
+.companion-app .right-panel .inbox-scope button {
+  flex: 1;
+  min-width: 0;
+  border: none;
+  border-radius: var(--radius-sm);
+  padding: 5px 10px;
+  opacity: 1;
+  color: var(--text-dim);
+  font-size: var(--fs-ui-sm);
+  white-space: nowrap;
+}
+.companion-app .right-panel .inbox-scope button.active { background: var(--bg-raised); box-shadow: var(--shadow-md); color: var(--text); }
 .companion-app .tsb-menu {
   min-width: min(216px, calc(100vw - 16px));
   max-width: min(360px, calc(100vw - 16px));
@@ -124,7 +211,7 @@
 }
 .companion-app .tsb-mi { overflow-wrap: anywhere; }
 
-.companion-app.compact .companion-topbar { flex-wrap: wrap; padding: 8px; }
+.companion-app.compact .companion-topbar { flex-wrap: wrap; padding: 8px 12px; }
 .companion-app.compact .shell-navigation { width: 100%; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
 .companion-app.compact .shell-nav-button { min-width: 0; min-height: 40px; flex-wrap: wrap; gap: 0 4px; padding: 4px; }
 .companion-app.compact .shell-nav-button > svg { display: none; }

test/design-guard.test.ts

@@ -1,6 +1,6 @@
 // 设计系统守护测试（父仓 DESIGN.md §11 禁止清单 · 宿主侧，2026-09-30）。
 // 棘轮基线：现存豁免登记在下方；新增同类违规直接失败。收紧 = 修掉违规后删基线条目。
-// 范围：src/styles.css 与 src/**/*.tsx。@ui 组件库侧由 Agent-System-UI 的守护测试覆盖。
+// 范围：src/**/*.css 与 src/**/*.tsx。@ui 组件库侧由 Agent-System-UI 的守护测试覆盖。
 import { describe, it, expect } from 'vitest'
 import { readFileSync, readdirSync, statSync, existsSync } from 'node:fs'
 import { join, relative, dirname } from 'node:path'
@@ -36,8 +36,14 @@ describe('DESIGN.md 宪法在位', () => {
 
 // ---- 2. 动效唯一所有者 ----
 describe('动效唯一所有者', () => {
-  it('styles.css 无 @keyframes（全部走 @ui/motion.css 的 mk-* 类）', () => {
-    expect(stripCssComments(read(join(SRC, 'styles.css')))).not.toContain('@keyframes')
+  it('宿主 CSS 无 @keyframes 或私有 transition（全部走 @ui/motion.css 的 mk-* 类）', () => {
+    for (const path of walk(SRC).filter(p => p.endsWith('.css'))) {
+      const css = stripCssComments(read(path))
+      expect(css, `${relative(SRC, path)} 不得定义 @keyframes`).not.toContain('@keyframes')
+      const transitions = css.split('\n').filter(line => /transition\s*:/.test(line) && !/transition\s*:\s*none\b/.test(line))
+      if (path.endsWith('styles.css')) continue // 历史 transition 由现有棘轮逐步收紧；新分层 CSS 不再扩散。
+      expect(transitions, `${relative(SRC, path)} 动效必须消费 mk-*`).toEqual([])
+    }
   })
 })
 
@@ -53,6 +59,16 @@ describe('裸色值棘轮', () => {
     const extra = found.filter(h => !allow.has(h))
     expect(extra, `新增裸色值 ${[...new Set(extra)].join(', ')}——改用 tokens 令牌；确需豁免更新 HEX_BASELINE_STYLES 并写明理由`).toEqual([])
   })
+  it('分层组件 CSS 只消费令牌，不派生私有颜色', () => {
+    const componentCss = walk(SRC).filter(p => p.endsWith('.css') && !p.endsWith('styles.css'))
+    const extra: string[] = []
+    for (const path of componentCss) {
+      const css = stripCssComments(read(path))
+      for (const hex of collectHex(css)) extra.push(`${relative(SRC, path)}: ${hex}`)
+      if (/color-mix\s*\(/.test(css)) extra.push(`${relative(SRC, path)}: color-mix`)
+    }
+    expect(extra, '分层组件 CSS 的颜色须由 @ui/tokens.css 提供').toEqual([])
+  })
   it('组件 TSX 无裸色值', () => {
     const extra: string[] = []
     for (const p of walk(SRC).filter(p => /\.(tsx|ts)$/.test(p) && !p.endsWith('.d.ts'))) {