优化思考工具展开样式

src/client/components/messages/ToolTrace.vue

@@ -18,9 +18,9 @@ watch(() => props.expanded, value => { if (value) open.value = true })
 <template>
   <div class="tool-trace" :class="`tool-trace--${tool.status}`">
     <button type="button" @click="open = !open">
-      <span class="tool-trace__caret" :class="{ open }">›</span>
       <strong>{{ tool.name }}</strong>
       <small v-if="tool.status === 'error'">{{ statusLabel }}</small>
+      <span class="tool-trace__caret" :class="{ open }">›</span>
     </button>
     <div v-if="open && (inputDetail || outputDetail)" class="tool-trace__details">
       <section v-if="inputDetail"><small>输入</small><pre>{{ inputDetail }}</pre></section>

src/client/components/messages/TurnTrace.vue

@@ -37,12 +37,13 @@ const statusLabel = computed(() => props.group.status === 'running' ? '进行中
 </template>
 
 <style scoped>
-.turn-trace { width: min(680px, 100%); margin: 2px 0 9px; color: var(--text-muted); }.turn-trace > summary { display: flex; width: fit-content; min-height: 28px; align-items: center; gap: 6px; padding: 2px 7px 2px 2px; border-radius: 7px; cursor: pointer; list-style: none; transition: background-color 100ms ease, color 100ms ease; }.turn-trace > summary::-webkit-details-marker { display: none; }.turn-trace > summary:hover, .turn-trace > summary:focus-visible { outline: 0; background: var(--surface-soft); color: var(--text-secondary); }.turn-trace > summary strong { color: var(--text-secondary); font-size: 10px; font-weight: 540; }.turn-trace > summary small { font-size: 9px; }.turn-trace > summary em { color: var(--warning); font-size: 8px; font-style: normal; }.turn-trace--error > summary em { color: var(--danger); }
+.turn-trace { width: min(680px, 100%); margin: 2px 0 9px; border-radius: 10px; color: var(--text-muted); transition: background-color 100ms ease; }.turn-trace[open] { background: color-mix(in srgb, var(--surface-soft) 45%, var(--surface)); }.turn-trace > summary { display: flex; width: fit-content; min-height: 28px; align-items: center; gap: 6px; padding: 2px 7px 2px 2px; border-radius: 7px; cursor: pointer; list-style: none; transition: background-color 100ms ease, color 100ms ease; }.turn-trace > summary::-webkit-details-marker { display: none; }.turn-trace > summary:hover, .turn-trace > summary:focus-visible { outline: 0; background: var(--surface-soft); color: var(--text-secondary); }.turn-trace > summary strong { color: var(--text-secondary); font-size: 10px; font-weight: 540; }.turn-trace > summary small { font-size: 9px; }.turn-trace > summary em { color: var(--warning); font-size: 8px; font-style: normal; }.turn-trace--error > summary em { color: var(--danger); }
 .turn-trace__caret { display: inline-block; width: 9px; font-size: 14px; line-height: 1; transition: transform 120ms ease; }.turn-trace[open] .turn-trace__caret { transform: rotate(90deg); }
 .turn-trace__content { display: grid; max-height: min(420px, 52vh); margin: 1px 0 6px; padding: 2px 8px 4px 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-gutter: stable; }
 .turn-trace__item { min-width: 0; }
 .turn-trace__reasoning { max-width: 620px; padding: 7px 0 5px; color: var(--text-secondary); }.turn-trace__reasoning header { display: flex; min-height: 22px; align-items: center; gap: 5px; margin-bottom: 6px; color: var(--text-muted); font-size: 9px; }.turn-trace__reasoning :deep(.markdown) { font-size: 11px; line-height: 1.58; }
 .turn-trace :deep(.turn-trace__tool) { margin: 0; padding: 5px 0; }
 .turn-trace :deep(.turn-trace__tool .tool-trace__details) { margin-left: 0; border-left: 0; }
-@media (prefers-reduced-motion: reduce) { .turn-trace > summary, .turn-trace__caret { transition: none; } }
+.turn-trace :deep(.turn-trace__tool .tool-trace__details pre) { max-height: none; overflow: visible; }
+@media (prefers-reduced-motion: reduce) { .turn-trace, .turn-trace > summary, .turn-trace__caret { transition: none; } }
 </style>

tests/e2e/workspace.spec.ts

@@ -640,14 +640,19 @@ test('folds tool result rows into their expandable tool call', async ({ page })
   await page.goto('/chat/session-demo')
   const trace = page.locator('.turn-trace').first()
   await expect(trace).not.toHaveAttribute('open', '')
+  await expect(trace).toHaveCSS('background-color', 'rgba(0, 0, 0, 0)')
   await expect(trace.locator('summary')).toContainText('思考与工具')
   await expect(trace.locator('summary')).toContainText('2 段思考 · 2 个工具')
   await expect(trace.locator('summary > :last-child')).toHaveClass(/turn-trace__caret/)
   await trace.locator('summary').click()
+  await expect(trace).not.toHaveCSS('background-color', 'rgba(0, 0, 0, 0)')
   await expect(trace.locator('.turn-trace__reasoning')).toHaveCount(2)
   await expect(trace.locator('.tool-trace')).toHaveCount(2)
+  await expect(trace.locator('.tool-trace > button > :last-child.tool-trace__caret')).toHaveCount(2)
   await expect(trace.locator('.tool-trace__details')).toHaveCount(2)
   await expect(trace.locator('.tool-trace__details').filter({ hasText: '/tmp/demo-report.pdf' })).toBeVisible()
+  await expect(trace.locator('.tool-trace__details pre').first()).toHaveCSS('max-height', 'none')
+  await expect(trace.locator('.tool-trace__details pre').first()).toHaveCSS('overflow-y', 'visible')
   const traceContent = trace.locator('.turn-trace__content')
   await expect(traceContent).toHaveCSS('overflow-y', 'auto')
   await expect(traceContent.locator(':scope > .turn-trace__item')).toHaveCount(4)