feat(ui): 共享组件补齐——Card 面色分层 + Button link/lg + 4 原子件

- Card 新增 tone(panel/card/soft)/flat/interactive；cardClass 兼容旧字符串签名
- Button 新增 link(coral 文字链) 变体与 lg 尺寸
- 新增原子件 Eyebrow(统一眉题) / StatusDot(状态点·读屏可见) /
  Skeleton(motion-safe 占位) / Meter(进度条·progressbar)
- PageHeader/SectionHeader 用 display/title 字阶 + Eyebrow 眉题

apps/web/components/ui/Card.tsx

@@ -1,20 +1,29 @@
 import type { HTMLAttributes, ReactNode } from "react";
 
-import { cardClass } from "@/lib/ui/variants";
+import { cardClass, type CardTone } from "@/lib/ui/variants";
 
 interface CardProps extends HTMLAttributes<HTMLElement> {
   children: ReactNode;
   as?: "article" | "div" | "section";
+  tone?: CardTone;
+  flat?: boolean;
+  interactive?: boolean;
 }
 
 export function Card({
   as: Component = "div",
   children,
   className,
+  tone,
+  flat,
+  interactive,
   ...props
 }: CardProps) {
   return (
-    <Component className={cardClass(className)} {...props}>
+    <Component
+      className={cardClass({ tone, flat, interactive, className })}
+      {...props}
+    >
       {children}
     </Component>
   );

apps/web/components/ui/Eyebrow.tsx

@@ -0,0 +1,23 @@
+import type { ReactNode } from "react";
+
+import { cn } from "@/lib/ui/variants";
+
+interface EyebrowProps {
+  children: ReactNode;
+  className?: string;
+}
+
+// 眉题/小标签：无衬线、eyebrow 字号（含正字距 0.08em）、说明色、大写。
+// 统一各页此前 mono/uppercase 互不一致的小标签写法。
+export function Eyebrow({ children, className }: EyebrowProps) {
+  return (
+    <p
+      className={cn(
+        "font-sans text-eyebrow uppercase text-muted-soft",
+        className,
+      )}
+    >
+      {children}
+    </p>
+  );
+}

apps/web/components/ui/Meter.tsx

@@ -0,0 +1,45 @@
+import { cn } from "@/lib/ui/variants";
+
+export type MeterTone = "accent" | "success" | "warning" | "danger" | "info";
+
+const meterTones: Record<MeterTone, string> = {
+  accent: "bg-cinnabar",
+  success: "bg-pass",
+  warning: "bg-overdue",
+  danger: "bg-conflict",
+  info: "bg-info",
+};
+
+interface MeterProps {
+  /** 0..1，超出范围自动夹取。 */
+  value: number;
+  tone?: MeterTone;
+  label?: string;
+  className?: string;
+}
+
+// 进度条：语义色填充，宽度过渡走动效 token；对读屏暴露 progressbar。
+export function Meter({ value, tone = "accent", label, className }: MeterProps) {
+  const pct = Math.max(0, Math.min(1, value)) * 100;
+  return (
+    <div
+      className={cn(
+        "h-1.5 w-full overflow-hidden rounded-full bg-line/60",
+        className,
+      )}
+      role="progressbar"
+      aria-valuenow={Math.round(pct)}
+      aria-valuemin={0}
+      aria-valuemax={100}
+      aria-label={label}
+    >
+      <div
+        className={cn(
+          "h-full rounded-full transition-[width] duration-base ease-standard",
+          meterTones[tone],
+        )}
+        style={{ width: `${pct}%` }}
+      />
+    </div>
+  );
+}

apps/web/components/ui/PageHeader.tsx

@@ -1,5 +1,7 @@
 import type { ReactNode } from "react";
 
+import { Eyebrow } from "./Eyebrow";
+
 interface PageHeaderProps {
   title: string;
   eyebrow?: string;
@@ -16,12 +18,8 @@ export function PageHeader({
   return (
     <header className="mb-6 flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
       <div>
-        {eyebrow ? (
-          <p className="mb-1 font-mono text-xs uppercase tracking-wide text-ink-soft/70">
-            {eyebrow}
-          </p>
-        ) : null}
-        <h1 className="font-serif text-2xl text-ink">{title}</h1>
+        {eyebrow ? <Eyebrow className="mb-1.5">{eyebrow}</Eyebrow> : null}
+        <h1 className="font-serif text-display-sm text-ink">{title}</h1>
         {description ? (
           <p className="mt-2 max-w-2xl text-sm leading-6 text-ink-soft">
             {description}

apps/web/components/ui/SectionHeader.tsx

@@ -2,8 +2,11 @@ import type { ReactNode } from "react";
 
 import { cn } from "@/lib/ui/variants";
 
+import { Eyebrow } from "./Eyebrow";
+
 interface SectionHeaderProps {
   title: string;
+  eyebrow?: string;
   description?: ReactNode;
   action?: ReactNode;
   className?: string;
@@ -11,6 +14,7 @@ interface SectionHeaderProps {
 
 export function SectionHeader({
   title,
+  eyebrow,
   description,
   action,
   className,
@@ -18,7 +22,8 @@ export function SectionHeader({
   return (
     <div className={cn("flex items-start justify-between gap-4", className)}>
       <div className="min-w-0">
-        <h2 className="font-serif text-base text-ink">{title}</h2>
+        {eyebrow ? <Eyebrow className="mb-1">{eyebrow}</Eyebrow> : null}
+        <h2 className="font-serif text-title-md text-ink">{title}</h2>
         {description ? (
           <p className="mt-1 text-sm leading-6 text-ink-soft">{description}</p>
         ) : null}

apps/web/components/ui/Skeleton.tsx

@@ -0,0 +1,18 @@
+import { cn } from "@/lib/ui/variants";
+
+interface SkeletonProps {
+  className?: string;
+}
+
+// 加载占位：柔和线条底 + motion-safe 脉冲（尊重 prefers-reduced-motion）。
+export function Skeleton({ className }: SkeletonProps) {
+  return (
+    <span
+      aria-hidden="true"
+      className={cn(
+        "block rounded-md bg-line/60 motion-safe:animate-pulse",
+        className,
+      )}
+    />
+  );
+}

apps/web/components/ui/StatusDot.tsx

@@ -0,0 +1,41 @@
+import { cn } from "@/lib/ui/variants";
+
+export type StatusTone =
+  | "neutral"
+  | "accent"
+  | "success"
+  | "warning"
+  | "danger"
+  | "info";
+
+const dotTones: Record<StatusTone, string> = {
+  neutral: "bg-ink-soft",
+  accent: "bg-cinnabar",
+  success: "bg-pass",
+  warning: "bg-overdue",
+  danger: "bg-conflict",
+  info: "bg-info",
+};
+
+interface StatusDotProps {
+  tone?: StatusTone;
+  /** 提供 label 时对读屏可见（不单靠颜色传达状态）。 */
+  label?: string;
+  className?: string;
+}
+
+// 状态点：语义色圆点，配合文案使用；有 label 时暴露给读屏。
+export function StatusDot({ tone = "neutral", label, className }: StatusDotProps) {
+  return (
+    <span
+      className={cn(
+        "inline-block h-2 w-2 shrink-0 rounded-full",
+        dotTones[tone],
+        className,
+      )}
+      role={label ? "img" : undefined}
+      aria-label={label}
+      aria-hidden={label ? undefined : true}
+    />
+  );
+}