fix(web): 聊天列表恢复项目符号，收紧定义列表，压思考条间距（BUG-962/963/964）

frontend/DESIGN.md

@@ -186,7 +186,7 @@ One documented exception: the thinking text inside a timeline step (`.consultati
 
 ## 4. Spacing & Layout
 
-The base unit is 4px. Tokens are `--space-1: 4px`, `--space-2: 8px`, `--space-3: 12px`, `--space-4: 16px`, `--space-5: 20px`, `--space-6: 24px`, `--space-8: 32px`, `--space-10: 40px`, `--space-12: 48px`, `--space-16: 64px`, and `--space-24: 96px`.
+The base unit is 4px. Tokens are `--space-1: 4px`, `--space-2: 8px`, `--space-3: 12px`, `--space-4: 16px`, `--space-5: 20px`, `--space-6: 24px`, `--space-8: 32px`, `--space-10: 40px`, `--space-12: 48px`, `--space-16: 64px`, and `--space-24: 96px`. `--consult-think-answer-gap` is `var(--space-3)` (12px): it is the only gap between the thinking bar and the answer body. Both `.consultation-thinking-report` and `.message-stage-and-answer` use it; do not write a second value on either path.
 
 Radii have two visual steps. Controls use 8px (`--radius-md`; `--radius-xs` and `--radius-sm` alias that value). Cards and sheets use 12px (`--radius-lg`; `--radius-xl` aliases it). Circles stay `50%`; pills stay `999px`.
 
@@ -755,6 +755,14 @@ Admin 的 antd `<Spin>` 是独立设计系统，不在此表。
 - **窄屏表格：** 三列表（技法审计）继续卡片化。四列及以上（Yoga、统一参数）在 `.conversation` 里横向滚动，右缘用 canvas 渐隐提示还可滑；`.conversation` 自身 `overflow-x: hidden`，页面不得出现横向滚动条。个人报告表格不走这套规则。
 - **表单输入 16px：** 全局 `input` / `select` 用 `--type-body-md`（16px）。iOS Safari 对小于 16px 的字段聚焦时会整页放大且不缩回。`.otp-input` 仍是 20px，`.composer textarea` 仍是 16px。
 
+### Chat body lists
+
+Three product rules for assistant markdown in `.message-markdown` (BUG-962 / 963 / 964). Personal-report markdown (`personal-report-markdown-view`) is a different surface and is not restyled here.
+
+- **Lists have markers.** `.message-markdown ul.markdown-list` is `list-style-type: disc`; `ol.markdown-list` is `decimal`. `::marker` uses `--color-ink-secondary`, not ink. Tailwind v4 preflight zeros `ul, ol { list-style }`; this surface must restore it. Keep `display: grid` — markers render with grid.
+- **Prose is not auto-promoted to lists.** `promoteDefinitionLists` still lifts consecutive short `term：body` blocks (BUG-356: parallel transit / advice items). A block promotes only when every one of these holds, and still only for ≥2 consecutive blocks: the term has no sentence-end punctuation (`。！？；!?;`) and no newlines; the body is a single sentence (no sentence-end, or exactly one at the end); the body is ≤ 40 characters; fences and existing lists are skipped. Spoken four-heading prose with a colon inside a long paragraph stays paragraphs.
+- **Thinking-bar-to-body spacing is one token.** `--consult-think-answer-gap` (`var(--space-3)` = 12px) is the gap on both `.consultation-thinking-report` and `.message-stage-and-answer`. In conversation scope, `.message-markdown > *:first-child { margin-top: 0 }` so an opening `h2` does not add `--space-8` on top of that gap. Conversation `.markdown-list` item gap is `--space-2` (8px).
+
 ## 14. 断点
 
 宽度切点只允许出现在 `globals.css` 顶部注释的白名单里。壳层切点以 `sidebarViewportForWidth` 为准：小于 768 移动，小于 1024 平板，否则桌面。组件级栅格（会员方案卡、校正候选）用 640/641。校正独立问题块（`.rectification-message-question.is-standalone`）与助手正文共用 `--assistant-content-inset`。报告目录在 860 塌成抽屉，因为那是第三栏的内容宽度，不是设备宽度。