@@ -6,7 +6,8 @@
  *              修复）：组 A 改了判类（未确认）→ 点组 B ⓘ → 弹层显示 B 且
  *              判类下拉回到 B.kind（防把 A 的选择误用到 B——路径: 改判误操作）。
  *              invoke 全 mock（list_note_groups/count_due_cards/list_fragments/
- *              get_feature_flags/week_contract_status）。
+ *              get_feature_flags/week_contract_status/list_knowledge_systems/
+ *              list_knowledge_links）。
  */
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { cleanup, fireEvent, render, screen, waitFor } from "@testing-library/react";
@@ -38,6 +39,10 @@ beforeEach(() => {
       case "get_feature_flags": return { feedCapture: true };
       case "week_contract_status":
         return { contract: null, weekStart: 0, actualDays: 0, actualCards: 0, minimalDayMet: false };
+      case "list_knowledge_systems":
+        return [{ id: 10, parentSystemId: null, name: "摄影", kind: "domain", coreQuestion: null, status: "active", createdAt: 0, updatedAt: 0 }];
+      case "list_knowledge_links":
+        return [{ id: 1, systemId: 10, nodeId: null, conceptId: null, modelId: null, targetType: "note_group", targetId: 1, createdAt: 0 }];
       case "override_group_route": return true;
       default:
         throw new Error(`unexpected: ${cmd}`);
@@ -58,6 +63,7 @@ function renderSidebar() {
       onOpenInbox={vi.fn()}
       inboxActive={false}
       refreshToken={0}
+      onOpenSystem={vi.fn()}
     />,
   );
 }
@@ -75,6 +81,7 @@ describe("GroupSidebar ⓘ 弹层", () => {
         onOpenInbox={vi.fn()}
         inboxActive={false}
         refreshToken={0}
+        onOpenSystem={vi.fn()}
       />,
     );
     await screen.findByTestId("group-row-1");
@@ -102,4 +109,29 @@ describe("GroupSidebar ⓘ 弹层", () => {
     // 明细折叠态与结算计划同样重置
     expect(screen.queryByTestId("route-details")).toBeNull();
   });
+
+  it("组行显示关联体系徽标并点击跳转（触点①）", async () => {
+    const onOpenSystem = vi.fn();
+    const onGroupFilterChange = vi.fn();
+    render(
+      <GroupSidebar
+        groupFilter={null}
+        onGroupFilterChange={onGroupFilterChange}
+        onChanged={vi.fn()}
+        onOpenReview={vi.fn()}
+        selectedNoteId={null}
+        onOpenInbox={vi.fn()}
+        inboxActive={false}
+        refreshToken={0}
+        onOpenSystem={onOpenSystem}
+      />,
+    );
+    await screen.findByTestId("group-row-1");
+    const badge = await screen.findByTestId("system-badge");
+    expect(badge.textContent).toContain("摄影");
+    // 点击徽标跳体系页（stopPropagation——不触发组过滤）
+    fireEvent.click(badge);
+    expect(onOpenSystem).toHaveBeenCalledWith(10);
+    expect(onGroupFilterChange).not.toHaveBeenCalled();
+  });
 });
@@ -11,8 +11,10 @@
 import { useCallback, useEffect, useState } from "react";
 import { invoke } from "@tauri-apps/api/core";
 import type { Fragment, NoteGroup } from "../types";
+import type { KnowledgeLink, KnowledgeSystem } from "../types/knowledge";
 import { parseRouteReason, routeLineState } from "../utils/routeReason";
 import RouteInfoPopover from "./RouteInfoPopover";
+import SystemBadge from "./SystemBadge";
 
 interface Props {
   /** 当前过滤组（null=全部笔记） */
@@ -30,6 +32,8 @@ interface Props {
   inboxActive: boolean;
   /** 外部刷新令牌（捕获/升笔记/升卡后触发本栏重载计数） */
   refreshToken: number;
+  /** 跳转体系页并选中体系（v0.13.7 触点①） */
+  onOpenSystem: (systemId: number) => void;
 }
 
 /** 组类别徽标（文案+配色） */
@@ -52,7 +56,7 @@ async function blobToBase64(blob: Blob): Promise<string> {
 
 export default function GroupSidebar({
   groupFilter, onGroupFilterChange, onChanged, onOpenReview, selectedNoteId,
-  onOpenInbox, inboxActive, refreshToken,
+  onOpenInbox, inboxActive, refreshToken, onOpenSystem,
 }: Props) {
   const [groups, setGroups] = useState<NoteGroup[]>([]);
   const [feedCaptureOn, setFeedCaptureOn] = useState(true);
@@ -62,6 +66,9 @@ export default function GroupSidebar({
   // 收件箱待处理数（active 碎片计数）
   const [inboxCount, setInboxCount] = useState(0);
   const [status, setStatus] = useState("");
+  // 体系引用映射（组 id → 引用它的体系列表；v0.13.7 触点① 徽标）
+  const [systemLinks, setSystemLinks] = useState<Record<number, { systemId: number; count: number }[]>>({});
+  const [systems, setSystems] = useState<KnowledgeSystem[]>([]);
   // ⓘ 弹层态（受控单开——同一时间只开一个组）
   const [popover, setPopover] = useState<{ group: NoteGroup; anchor: { x: number; y: number } } | null>(null);
 
@@ -74,6 +81,24 @@ export default function GroupSidebar({
       setDueTotal(due);
       const frags = await invoke<Fragment[]>("list_fragments", { status: "active", limit: 500 });
       setInboxCount(frags.length);
+      // v0.13.7 触点①：体系 + 引用拉取（并行——徽标数据与组列表无依赖）
+      const [sysList, links] = await Promise.all([
+        invoke<KnowledgeSystem[]>("list_knowledge_systems"),
+        invoke<KnowledgeLink[]>("list_knowledge_links"),
+      ]);
+      setSystems(sysList);
+      const map: Record<number, { systemId: number; count: number }[]> = {};
+      for (const l of links) {
+        if (l.targetType !== "note_group") continue;
+        (map[l.targetId] ??= []).push({ systemId: l.systemId, count: 0 });
+      }
+      // 合并同体系多引用为一条（count 累加——一行一个徽标，不重复堆叠）
+      for (const gid of Object.keys(map)) {
+        const merged: Record<number, number> = {};
+        for (const item of map[Number(gid)]) merged[item.systemId] = (merged[item.systemId] ?? 0) + 1;
+        map[Number(gid)] = Object.entries(merged).map(([sid, count]) => ({ systemId: Number(sid), count }));
+      }
+      setSystemLinks(map);
       setStatus("");
     } catch (e) {
       setStatus(`组加载失败: ${e}`);
@@ -222,6 +247,19 @@ export default function GroupSidebar({
                 {g.terrain === "feed" && (
                   <span style={{ fontSize: 10, color: "#7c3aed", background: "#faf5ff", borderRadius: 8, padding: "0 5px" }}>feed</span>
                 )}
+                {/* 体系徽标（触点①：该组被哪些体系引用；点击跳体系页） */}
+                {systemLinks[g.id]?.map((sl) => {
+                  const sys = systems.find((s) => s.id === sl.systemId);
+                  if (!sys || sys.status === "archived") return null;
+                  return (
+                    <SystemBadge
+                      key={sl.systemId}
+                      name={sys.name}
+                      linkCount={sl.count}
+                      onClick={() => onOpenSystem(sl.systemId)}
+                    />
+                  );
+                })}
                 <span style={{ fontSize: 10, color: line.needsConfirm ? "#b45309" : "#9ca3af", overflow: "hidden", textOverflow: "ellipsis", whiteSpace: "nowrap", minWidth: 0 }}>
                   {line.label}
                 </span>
 
@@ -6,7 +6,7 @@
  *              只显示名字，有计数时显示"名 · N 引用"。
  */
 import { afterEach, describe, expect, it, vi } from "vitest";
-import { cleanup, render, screen } from "@testing-library/react";
+import { cleanup, fireEvent, render, screen } from "@testing-library/react";
 import SystemBadge from "./SystemBadge";
 
 describe("SystemBadge", () => {
@@ -24,7 +24,7 @@ describe("SystemBadge", () => {
   it("点击触发 onClick", () => {
     const onClick = vi.fn();
     render(<SystemBadge name="摄影" linkCount={0} onClick={onClick} />);
-    screen.getByTestId("system-badge").click();
+    fireEvent.click(screen.getByTestId("system-badge"));
     expect(onClick).toHaveBeenCalledTimes(1);
   });
 });
 
@@ -30,12 +30,14 @@ import { useNoteAttention } from "../components/useNoteAttention";
 interface Props {
   focusNoteId?: number | null;
   onOpenSessions?: (sessionId: number) => void;
+  /** 打开体系页并选中体系（v0.13.7 触点① 组行徽标） */
+  onOpenSystem?: (systemId: number) => void;
 }
 
 /** 中部视图：notes=笔记列表（组过滤/搜索/标签）；inbox=收件箱碎片列表 */
 type MiddleView = "notes" | "inbox";
 
-export default function NotesPage({ focusNoteId, onOpenSessions }: Props) {
+export default function NotesPage({ focusNoteId, onOpenSessions, onOpenSystem }: Props) {
   const [notes, setNotes] = useState<Note[]>([]);
   const [keyword, setKeyword] = useState("");
   const [tagFilter, setTagFilter] = useState<string | null>(null);
@@ -294,6 +296,7 @@ export default function NotesPage({ focusNoteId, onOpenSessions }: Props) {
         onOpenInbox={() => { setGroupFilter(null); setView("inbox"); }}
         inboxActive={view === "inbox"}
         refreshToken={refreshToken}
+        onOpenSystem={(id) => onOpenSystem?.(id)}
       />
 
       {/* ── 中部：收件箱视图 ↔ 笔记列表原位切换（布局不变）── */}