diff --git a/apps/web/app/globals.css b/apps/web/app/globals.css
index 60fd9c7..aef43f7 100644
--- a/apps/web/app/globals.css
+++ b/apps/web/app/globals.css
@@ -5,12 +5,25 @@
 /* 纸感设计 token（UX_SPEC §2.1） */
 :root,
 [data-theme="paper"] {
+  /* 面色阶：底 → 分隔带 → 内容卡（比底暗一步）→ 选中强调 → 浮起面板 */
   --color-bg: #f5f1e8;
+  --color-surface-soft: #efe9dc;
+  --color-surface-card: #ece4d3;
+  --color-surface-strong: #e4d9c4;
   --color-panel: #fbf8f1;
+  /* 文字色阶（5 级）：标题 → 强调段 → 正文 → 次级 → 说明/细则 */
   --color-ink: #2b2620;
+  --color-body-strong: #3a342b;
+  --color-body: #4a4234;
   --color-ink-soft: #6b6356;
+  --color-muted-soft: #8a8073;
+  /* 边框：主边框 + 同带内更弱分隔 */
   --color-line: #e5ddcd;
+  --color-line-soft: #ece4d5;
+  /* 朱砂 coral：主色 + 按压变深 + 奶油化禁用 + 淡底 */
   --color-cinnabar: #a23b2e;
+  --color-cinnabar-active: #8a2f24;
+  --color-cinnabar-disabled: #d9cdbd;
   --color-cinnabar-wash: #a23b2e14;
   --color-conflict: #b5543a;
   --color-overdue: #c8893a;
@@ -22,13 +35,33 @@
   color-scheme: light;
 }
 
+/* 动效 token（与主题无关，单处定义；夜读模式不覆盖） */
+:root {
+  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
+  --dur-fast: 120ms;
+  --dur-base: 180ms;
+}
+
 [data-theme="night"] {
+  /* 面色阶：底 → 分隔带 → 浮起面板 → 内容卡（暗面向上抬）→ 选中强调 */
   --color-bg: #181614;
+  --color-surface-soft: #1e1b17;
+  --color-surface-card: #2a2620;
+  --color-surface-strong: #332e26;
   --color-panel: #221f1b;
+  /* 文字色阶（5 级） */
   --color-ink: #efe6d7;
+  --color-body-strong: #ddd2c0;
+  --color-body: #cdc0ab;
   --color-ink-soft: #b9ab96;
+  --color-muted-soft: #8f8474;
+  /* 边框 */
   --color-line: #3c352c;
+  --color-line-soft: #2f2a23;
+  /* 朱砂 coral */
   --color-cinnabar: #e07866;
+  --color-cinnabar-active: #c85f4d;
+  --color-cinnabar-disabled: #3c352c;
   --color-cinnabar-wash: #e0786620;
   --color-conflict: #ef8a72;
   --color-overdue: #d8a65d;
diff --git a/apps/web/components/ui/SegmentedControl.tsx b/apps/web/components/ui/SegmentedControl.tsx
index 68d392d..2231452 100644
--- a/apps/web/components/ui/SegmentedControl.tsx
+++ b/apps/web/components/ui/SegmentedControl.tsx
@@ -1,6 +1,6 @@
 import type { ReactNode } from "react";
 
-import { cn, segmentedClass } from "@/lib/ui/variants";
+import { cn, focusRing, segmentedClass, transitionUi } from "@/lib/ui/variants";
 
 export interface SegmentOption<T extends string> {
   value: T;
@@ -33,7 +33,9 @@ export function SegmentedControl<T extends string>({
             aria-pressed={selected}
             onClick={() => onChange(option.value)}
             className={cn(
-              "rounded px-3 py-1.5 text-sm transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cinnabar/35",
+              "rounded-md px-3 py-1.5 text-sm",
+              transitionUi,
+              focusRing,
               selected
                 ? "bg-panel text-cinnabar shadow-paper"
                 : "text-ink-soft hover:text-cinnabar",
diff --git a/apps/web/lib/ui/variants.test.ts b/apps/web/lib/ui/variants.test.ts
index ddfaec7..b88137a 100644
--- a/apps/web/lib/ui/variants.test.ts
+++ b/apps/web/lib/ui/variants.test.ts
@@ -3,6 +3,7 @@ import { describe, expect, it } from "vitest";
 import {
   badgeClass,
   buttonClass,
+  cardClass,
   cn,
   focusRing,
   inputClass,
@@ -10,6 +11,7 @@ import {
   proseBody,
   segmentedClass,
   statusNoteClass,
+  transitionUi,
 } from "./variants";
 
 describe("ui variants", () => {
@@ -25,6 +27,29 @@ describe("ui variants", () => {
     expect(klass).toContain("focus-visible:ring-2");
   });
 
+  it("uses layered radius tokens (button md / card lg / badge pill)", () => {
+    expect(buttonClass({ variant: "primary" })).toContain("rounded-md");
+    expect(cardClass()).toContain("rounded-lg");
+    expect(badgeClass()).toContain("rounded-full");
+    expect(inputClass()).toContain("rounded-md");
+  });
+
+  it("gives the primary button a press-darken and cream disabled state", () => {
+    const klass = buttonClass({ variant: "primary" });
+
+    expect(klass).toContain("hover:bg-cinnabar-active");
+    expect(klass).toContain("active:bg-cinnabar-active");
+    expect(klass).toContain("disabled:bg-cinnabar-disabled");
+    expect(klass).not.toContain("hover:bg-cinnabar/95");
+  });
+
+  it("shares one interaction-transition token across controls", () => {
+    expect(transitionUi).toContain("duration-fast");
+    expect(transitionUi).toContain("ease-standard");
+    expect(buttonClass({ variant: "primary" })).toContain(transitionUi);
+    expect(inputClass()).toContain(transitionUi);
+  });
+
   it("keeps warning badges readable on the paper background", () => {
     const klass = badgeClass({ variant: "warning" });
 
@@ -59,10 +84,9 @@ describe("ui variants", () => {
     expect(buttonClass({ variant: "primary" })).toContain(focusRing);
   });
 
-  it("renders manuscript body as serif 18px with airy leading", () => {
+  it("renders manuscript body as serif prose scale", () => {
     expect(proseBody).toContain("font-serif");
-    expect(proseBody).toContain("text-[18px]");
-    expect(proseBody).toContain("leading-[1.9]");
+    expect(proseBody).toContain("text-prose");
   });
 
   it("provides a full-screen overlay scrim below dialog chrome", () => {
diff --git a/apps/web/lib/ui/variants.ts b/apps/web/lib/ui/variants.ts
index 133d4a6..4555720 100644
--- a/apps/web/lib/ui/variants.ts
+++ b/apps/web/lib/ui/variants.ts
@@ -23,30 +23,31 @@ export function cn(...classes: Array<string | false | null | undefined>): string
   return classes.filter(Boolean).join(" ");
 }
 
-// 统一焦点环（与 buttonBase 现有焦点环一致），供导航/输入等可聚焦元素复用。
+// 统一焦点环（供按钮/输入/导航等所有可聚焦元素复用，统一到 cinnabar/35）。
 export const focusRing =
   "focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cinnabar/35";
 
-// 手稿正文统一排版：衬线 18px、行高 1.9。
-export const proseBody = "font-serif text-[18px] leading-[1.9]";
+// 统一交互过渡（颜色变化 + 动效 token），供按钮/输入/导航复用，全局可调。
+export const transitionUi = "transition-colors duration-fast ease-standard";
+
+// 手稿正文统一排版：衬线 18px（text-prose 档）、行高 1.9。
+export const proseBody = "font-serif text-prose";
 
 // Drawer / CommandPalette 共用的全屏遮罩。
 export const overlayScrim = "fixed inset-0 z-40 bg-black/30";
 
-const buttonBase =
-  "inline-flex items-center justify-center gap-1.5 rounded border text-sm transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-cinnabar/35 disabled:cursor-not-allowed disabled:opacity-45";
+const buttonBase = `inline-flex items-center justify-center gap-1.5 rounded-md border text-sm disabled:cursor-not-allowed ${transitionUi} ${focusRing}`;
+
+// 非主按钮的禁用淡化（主按钮改用奶油化禁用底，见下）。
+const disabledFade = "disabled:opacity-45";
 
 const buttonVariants: Record<ButtonVariant, string> = {
   primary:
-    "border-cinnabar bg-cinnabar text-panel shadow-paper hover:bg-cinnabar/95",
-  secondary:
-    "border-line bg-panel text-ink hover:border-cinnabar hover:text-cinnabar",
-  outline:
-    "border-cinnabar bg-transparent text-cinnabar hover:bg-[var(--color-cinnabar-wash)]",
-  ghost:
-    "border-transparent bg-transparent text-ink-soft hover:bg-[var(--color-cinnabar-wash)] hover:text-cinnabar",
-  danger:
-    "border-conflict bg-transparent text-conflict hover:bg-conflict/10",
+    "border-cinnabar bg-cinnabar text-panel shadow-paper hover:bg-cinnabar-active active:bg-cinnabar-active disabled:border-cinnabar-disabled disabled:bg-cinnabar-disabled disabled:text-muted-soft",
+  secondary: `border-line bg-panel text-ink hover:border-cinnabar hover:text-cinnabar ${disabledFade}`,
+  outline: `border-cinnabar bg-transparent text-cinnabar hover:bg-[var(--color-cinnabar-wash)] active:bg-[var(--color-cinnabar-wash)] ${disabledFade}`,
+  ghost: `border-transparent bg-transparent text-ink-soft hover:bg-[var(--color-cinnabar-wash)] hover:text-cinnabar ${disabledFade}`,
+  danger: `border-conflict bg-transparent text-conflict hover:bg-conflict/10 ${disabledFade}`,
 };
 
 const buttonSizes: Record<ButtonSize, string> = {
@@ -68,7 +69,7 @@ export function buttonClass({
 }
 
 const badgeBase =
-  "inline-flex items-center gap-1 rounded border px-2 py-0.5 text-xs leading-5";
+  "inline-flex items-center gap-1 rounded-full border px-2.5 py-0.5 text-xs leading-5";
 
 const badgeVariants: Record<BadgeVariant, string> = {
   neutral: "border-line bg-bg text-ink-soft",
@@ -91,7 +92,7 @@ export function badgeClass({
 }
 
 export function cardClass(className?: string): string {
-  return cn("rounded border border-line bg-panel shadow-paper", className);
+  return cn("rounded-lg border border-line bg-panel shadow-paper", className);
 }
 
 const fieldTextBase = "block text-sm font-medium text-ink";
@@ -108,8 +109,7 @@ export function fieldErrorClass(className?: string): string {
   return cn("mt-1 text-xs leading-5 text-conflict", className);
 }
 
-const inputBase =
-  "w-full rounded border bg-bg text-ink transition-colors placeholder:text-ink-soft/65 focus:outline-none focus-visible:ring-2 focus-visible:ring-cinnabar/30 disabled:cursor-not-allowed disabled:bg-line/20 disabled:text-ink-soft";
+const inputBase = `w-full rounded-md border bg-bg text-ink placeholder:text-ink-soft/80 disabled:cursor-not-allowed disabled:bg-line/20 disabled:text-ink-soft ${transitionUi} ${focusRing}`;
 
 const inputStates: Record<InputState, string> = {
   default: "border-line focus:border-cinnabar",
diff --git a/apps/web/tailwind.config.ts b/apps/web/tailwind.config.ts
index 5cc4ceb..271d647 100644
--- a/apps/web/tailwind.config.ts
+++ b/apps/web/tailwind.config.ts
@@ -11,11 +11,20 @@ const config: Config = {
     extend: {
       colors: {
         bg: "var(--color-bg)",
+        "surface-soft": "var(--color-surface-soft)",
+        "surface-card": "var(--color-surface-card)",
+        "surface-strong": "var(--color-surface-strong)",
         panel: "var(--color-panel)",
         ink: "var(--color-ink)",
+        "body-strong": "var(--color-body-strong)",
+        body: "var(--color-body)",
         "ink-soft": "var(--color-ink-soft)",
+        "muted-soft": "var(--color-muted-soft)",
         line: "var(--color-line)",
+        "line-soft": "var(--color-line-soft)",
         cinnabar: "var(--color-cinnabar)",
+        "cinnabar-active": "var(--color-cinnabar-active)",
+        "cinnabar-disabled": "var(--color-cinnabar-disabled)",
         conflict: "var(--color-conflict)",
         overdue: "var(--color-overdue)",
         pass: "var(--color-pass)",
@@ -27,10 +36,35 @@ const config: Config = {
         mono: ['"JetBrains Mono"', "ui-monospace"],
       },
       fontSize: {
+        // 编辑部字号刻度（衬线 display 用负字距；标签用正字距 eyebrow）
         "2xs": ["0.6875rem", { lineHeight: "1rem" }],
+        eyebrow: ["0.75rem", { lineHeight: "1.4", letterSpacing: "0.08em" }],
+        caption: ["0.8125rem", { lineHeight: "1.4" }],
+        body: ["1rem", { lineHeight: "1.55" }],
+        prose: ["1.125rem", { lineHeight: "1.9" }],
+        "title-md": ["1.125rem", { lineHeight: "1.4" }],
+        "title-lg": ["1.375rem", { lineHeight: "1.3" }],
+        "display-sm": ["1.75rem", { lineHeight: "1.2", letterSpacing: "-0.01em" }],
+        "display-md": ["2.25rem", { lineHeight: "1.15", letterSpacing: "-0.015em" }],
+        "display-lg": ["3rem", { lineHeight: "1.1", letterSpacing: "-0.02em" }],
+      },
+      borderRadius: {
+        xs: "4px",
+        sm: "6px",
+        DEFAULT: "6px",
+        md: "8px",
+        lg: "12px",
+        xl: "16px",
+        full: "9999px",
       },
-      borderRadius: { DEFAULT: "6px" },
       boxShadow: { paper: "0 1px 3px var(--shadow-paper)" },
+      transitionDuration: {
+        fast: "var(--dur-fast)",
+        base: "var(--dur-base)",
+      },
+      transitionTimingFunction: {
+        standard: "var(--ease-standard)",
+      },
       maxWidth: { prose: "720px" },
     },
   },