docs(web): link radius rules directly and tidy curve comment

docs/web-styling.i18n.yaml

@@ -9,8 +9,8 @@
   en: dc8c41fbf9869179
   zh: e45976a585cb9c86
 /web-ui-style-reference/component-rules:
-  en: 17ccf65aec7f97b5
-  zh: f2592e85e617b959
+  en: 458da7f974517997
+  zh: 8b45f816151c233d
 /web-ui-style-reference/corner-radii-and-settings-cards:
   en: 118972f6c2bd6ce4
   zh: 85f8416b03e4dd8b

docs/web-styling.md

@@ -21,7 +21,7 @@ Global style sheets belong in `ui-theme/src/styles/`. Component styles live besi
 - Keep source text, terminal output, and diff lines unwrapped when their component contract requires column preservation; use the shared scrollbar styles rather than component-specific scrollbar selectors.
 - Put presentation in CSS. Inline React styles may pass component-local custom-property values but must not encode theme branches.
 - Preserve keyboard focus visibility and reduced-motion behavior when adding transitions or hover-only controls.
-- Rounded corners default to the global superellipse smoothing from ui-theme's `corner-shape.css` on supporting engines. Follow the [corner-radius standard](ui-radius.md#shapes) for circular shapes and component-specific curves; the ui-theme corner-shape spec enforces the full-round pairing.
+- Rounded corners default to the global superellipse smoothing from ui-theme's `corner-shape.css` on supporting engines. Follow the radius standard's [circular-shape](ui-radius.md#shapes) and [nested-geometry](ui-radius.md#nested-hover) rules; the ui-theme corner-shape spec enforces the full-round pairing.
 - Elevated surfaces (menus, popovers, modals, panels, floating buttons, the composer) set `border: 0` and take `box-shadow: var(--dsw-elevation-panel)`, `var(--dsw-elevation-prominent)`, or the composer's `var(--dsw-elevation-soft)` (larger blur at lower alpha): the 0.5px hairline stroke is the first shadow layer, and `--dsw-elevation-stroke-color` rebinds or suppresses it per surface or state. Never pair a `--dsw-alias-border-*` border with an lv/elevation shadow — the ui-theme elevation spec rejects the pairing; state-colored borders (warn panels) stay real borders.
 - Existing and new dropdown, context, submenu, and selection menus use `Menu` or wrap custom content in `MenuSurface`. The material is the theme-owned `--dsw-menu-surface-fill` plus `--dsw-menu-backdrop-filter`; feature and platform CSS must not override either. The ui-theme menu spec rejects unwrapped menu/listbox renderers, material overrides, and token redefinitions. The schedule-owned `TaskMenu` and `ClockPicker` retain their existing containers and material as explicit exceptions ([owner](../packages/client/ui-schedule/README.md)).
 - Modal backdrops, including settings and confirmation dialogs, retain their translucent dark mask without blur. The theme sets `--dsw-mask-blur` to `none`; Desktop-owned modal overlays also leave the parent page unfiltered.

docs/web-styling.zh.md

@@ -21,7 +21,7 @@
 - 当组件约定要求保留列结构时，源码文本、终端输出和 diff 行不得换行；使用共享滚动条样式，不得定义组件专用滚动条选择器。
 - 呈现规则写在 CSS 中。React 内联样式可以传递组件局部自定义属性值，但不得编码主题分支。
 - 添加过渡动画或仅悬停可见的控件时，保留清晰可见的键盘焦点和减少动态效果行为。
-- 支持的引擎上，圆角默认使用 ui-theme `corner-shape.css` 的全局超级椭圆平滑。圆形与组件专用曲线遵循[圆角规范](ui-radius.zh.md#shapes)；ui-theme 的 corner-shape spec 强制全圆声明的配对。
+- 支持的引擎上，圆角默认使用 ui-theme `corner-shape.css` 的全局超级椭圆平滑。遵循圆角规范中的[圆形](ui-radius.zh.md#shapes)与[嵌套几何](ui-radius.zh.md#nested-hover)规则；ui-theme 的 corner-shape spec 强制全圆声明的配对。
 - 高层级表面（菜单、浮层、对话框、面板、悬浮按钮、输入框）设 `border: 0` 并使用 `box-shadow: var(--dsw-elevation-panel)`、`var(--dsw-elevation-prominent)` 或输入框专用的 `var(--dsw-elevation-soft)`（更大模糊、更低透明度）：0.5px 发丝描边是第一层投影，`--dsw-elevation-stroke-color` 可按表面或状态重绑或抑制描边。不得将 `--dsw-alias-border-*` border 与 lv/elevation 投影配对——ui-theme 的 elevation spec 会拒绝；状态色 border（warn 面板）保持真 border。
 - 存量和新增的下拉菜单、上下文菜单、子菜单及选择菜单使用 `Menu`，自定义内容用 `MenuSurface` 包裹。材质由主题的 `--dsw-menu-surface-fill` 和 `--dsw-menu-backdrop-filter` 组成；功能及平台 CSS 不得覆盖两者。ui-theme 菜单检查拒绝未使用共享容器的 menu/listbox 渲染、材质覆盖和 token 重定义。计划任务自有的 `TaskMenu` 与 `ClockPicker` 是明确例外，保留现有容器和材质（[所属包](../packages/client/ui-schedule/README.zh.md)）。
 - 设置、确认框等模态弹窗保留黑色半透明遮罩，不模糊背景。主题将 `--dsw-mask-blur` 设为 `none`；Desktop 自有模态浮层也不对父页面施加模糊。

packages/client/ui-theme/src/styles/corner-shape.css

@@ -1,8 +1,8 @@
 /* Default smooth corner curvature. Inside the support guard, corners use
  * superellipse(1.5) — between a circular arc (round = superellipse(1)) and a
- * squircle (superellipse(2)) — instead of the
- * default arc; engines without corner-shape keep circular corners because the
- * token and the rule exist only inside the guard.
+ * squircle (superellipse(2)) — instead of the default arc. Engines without
+ * corner-shape keep circular corners because the token and the rule exist
+ * only inside the guard.
  *
  * corner-shape does not inherit, so the universal selector applies the token
  * to elements and their ::before/::after; other pseudo-elements (for example