diff --git a/docs/prototype/code-reader/figma-plugin/README.md b/docs/prototype/code-reader/figma-plugin/README.md
index 0112373..77b9d9c 100644
--- a/docs/prototype/code-reader/figma-plugin/README.md
+++ b/docs/prototype/code-reader/figma-plugin/README.md
@@ -27,7 +27,7 @@
 | `Prototype / 枚举` | luffy 的 `referral/models.py` 里的 `CommissionStatus` | 枚举卡片：名称 / 访问级别 / 继承，成员收成一张表（成员 / 值 / 说明），说明取行尾注释；Python 用库规则（导入了 enum 才启用），TypeScript 的 enum 由语言插件报结构，画成同一张卡片 |
 | `Prototype / 库规则 · Celery` | luffy 的 `backend/src/luffy_agent/celery_app.py` | 库规则（导入了 celery 才启用）两张卡片：「Celery 应用」名称 / 应用名 / 消息队列 / 结果存储；「定时任务」应用 + 任务表（任务 / 频率 / 说明），频率换算成「每 5 分钟」「每天」，说明取行尾注释，`**` 展开的另起一行 |
 | `Prototype / 库规则 · FastAPI 接口` | luffy 的 `user/routes.py` 里的 `router` 和 `update_user` | 路由器（`APIRouter(...)`）和接口是两张卡片。「路由器」卡片：名称 / 前缀 / 标签（写了依赖、默认响应再加行），接口表列这个文件里挂在它上面的全部接口（方法 / 完整路径 / 函数 / 说明），函数名 Cmd+单击跳到接口卡片。库规则（导入了 fastapi 才启用）把挂在路由对象上的函数整块换成「接口」卡片，函数体照常是子块：名称 / 说明 / 路由器 / 标签 / 异步 / 依赖（`Depends(...)` 注入的参数），然后两张表。请求表一项一行：URL（路由对象的 prefix + 装饰器里的路径）/ 方法 / 路径参数 / 查询参数 / 请求体，没有的项不列。响应表每个状态码一行（状态码 / 内容 / 说明）：成功那行来自 `status_code` 和 `response_model`，`responses={…}` 里写的各占一行，函数体里直接抛的异常按异常类上的 `status_code` 归行、说明列出抛出时的消息，有参数时 FastAPI 自动带的 422 淡色。挂到应用上时再叠的前缀（`/api/v1`）在别的文件里，不算 |
-| `Prototype / 调用 · 构造`（`routes.py · 预览` 的块树里也是这样） | routes.py 的 `return UserDetailResponse(...)`、`user = await user_service.update_user(...)`、`avatar_url = await user_service.upload_avatar(...)` | 跨了多行写的调用把实参摊成一张表（参数 / 值，没名字的写「第 N 个」）：返回里写「返回 新建 UserDetailResponse · 11 个参数」，变量的「初始值」写「等待 调用 user_service.update_user · 10 个参数」。被调用的名字是类就是「新建」，是函数就是「调用」（插件查定义，原型按首字母大写）；一行写完的调用照旧一行 |
+| `Prototype / 调用 · 构造`（`routes.py · 预览` 的块树里也是这样） | routes.py 的 `return UserDetailResponse(...)`、`user = await user_service.update_user(...)`、`avatar_url = await user_service.upload_avatar(...)` | 跨了多行写的调用把实参摊成一张表（参数 / 值，没名字的写「第 N 个」）：返回里写「返回 新建 UserDetailResponse · 11 个参数」，变量的「初始值」写「等待 调用 user_service.update_user · 10 个参数」。被调用的名字是类就是「新建」，是函数就是「调用」（插件查定义，原型按首字母大写）；一行写完的调用照旧一行。第三块是嵌套：luffy `commerce/payments/console/routes.py` 的 `return PaymentCapabilityDiagnostic(...)`（15 个参数），`credentials_present` 的值又是跨多行的 `CredentialPresence(...)`，值格里再写「新建 CredentialPresence · 4 个参数」和它的实参表，再套也一样；实参里一行写完的调用、跨行的 `and` 表达式照旧是一行字 |
 | `Prototype / 块种类图标` | — | 每种块一个图标、颜色、名称的图例，库规则带的种类后面淡色写规则名；最上面一块「返回」停着鼠标、图标下面弹出名称提示 |
 | `Prototype / 遍历 · 推导式` | luffy 邀请码工具的 `"".join(secrets.choice(ALPHABET) for _ in range(length))`，外加带条件的列表、字典推导 | 写在表达式里的遍历原地套一个带循环图标和结果类型（生成器 / 列表 / 字典）的小框，框里按读的顺序重排：「遍历 range(length) 的每个 _，仅当 …，取 …」 |
 | `Prototype / 侧栏 · 复制菜单` | 同上 | 悬停行行尾第一个按钮「复制」（带小箭头），点开一组复制方式：文件名 / 文件名（不带后缀）/ 相对路径 / 绝对路径，右边淡色预览会复制出什么；文件夹没有「不带后缀」 |
diff --git a/docs/prototype/code-reader/figma-plugin/code.js b/docs/prototype/code-reader/figma-plugin/code.js
index aca7bb7..c2e10ee 100644
--- a/docs/prototype/code-reader/figma-plugin/code.js
+++ b/docs/prototype/code-reader/figma-plugin/code.js
@@ -998,20 +998,49 @@ function setText(root, name, characters) {
 // 调用在变量的初始值里，表放在「初始值」下面；在返回、语句里，块里先写一行「返回 新建 X」，下面是表。
 // 没名字的实参按位置写「第 N 个」；值照常译，实参里嵌套的调用不再展开。
 const CALL_ARG_KEY_W = 180;
+// 嵌套示例：luffy 的 backend/src/luffy_agent/commerce/payments/console/routes.py，credentials_present 的值又是一个跨多行的构造
+const NESTED_CALL_SAMPLE = [
+  "PaymentCapabilityDiagnostic(",
+  "    native_enabled=bool(settings.WECHAT_PAY_MCH_ID),",
+  "    h5_enabled=settings.WECHAT_H5_ENABLED,",
+  "    jsapi_enabled=settings.WECHAT_JSAPI_ENABLED,",
+  "    jsapi_ready=jsapi_ready(settings),",
+  "    pay_app_id_masked=_mask_app_id(settings.WECHAT_PAY_APP_ID),",
+  "    mp_app_id_masked=_mask_app_id(settings.WECHAT_MP_APP_ID),",
+  "    credentials_present=CredentialPresence(",
+  "        mp_app_secret=bool(_secret_text(settings.WECHAT_MP_APP_SECRET)),",
+  "        wechat_pay_api_v3_key=bool(settings.WECHAT_PAY_API_V3_KEY),",
+  "        wechat_pay_private_key=bool(private_key_path)",
+  "        and Path(private_key_path).is_file(),",
+  "        jsapi_intent_master_key=_intent_key_present(settings),",
+  "    ),",
+  "    oauth_callback_host=oauth_host,",
+  "    pay_origin=pay_origin,",
+  "    allowed_pay_origins=allowed,",
+  "    jsapi_auth_dir_hint=[f\"{origin}/\" for origin in hint_origins if origin],",
+  "    domain_whitelist=\"unknown_manual_check\",",
+  "    merchant_binding=\"unknown_manual_check\",",
+  "    recovery_required_count=count,",
+  "    recovery_required_earliest=earliest,",
+  ")",
+].join("\n");
 
 /** 跨多行的调用拆出被调用的名字、有没有 await、各个实参；不是跨多行的调用返回 null。 */
 function parseCall(code) {
   if (!code.includes("\n")) return null;
-  const match = /^(await\s+)?([\w.]+)\(([\s\S]*)\)$/.exec(code.trim());
-  if (!match) return null;
+  const text = code.trim();
+  const match = /^(await\s+)?([\w.]+)\(([\s\S]*)\)$/.exec(text);
+  // 开头那个括号要一直括到末尾：`bool(x)\n and Path(x).is_file()` 这种是式子，不是一次调用
+  if (!match || matchingParen(text, text.indexOf("(")) !== text.length - 1) return null;
   const [, awaited, callee, inner] = match;
   const cuts = [-1, ...topLevelIndexes(inner, ","), inner.length];
   let position = 0;
+  // 每个实参：[名字, 一行的值, 值本身又是跨多行的调用时拆好的那个调用]
   const args = cuts.slice(1).map((end, index) => inner.slice(cuts[index] + 1, end).trim()).filter(Boolean).map((part) => {
     const keyword = /^(\w+)\s*=\s*([\s\S]+)$/.exec(part);
-    if (keyword) return [keyword[1], keyword[2].replace(/\s+/g, " ")];
-    position += 1;
-    return [`第 ${position} 个`, part.replace(/\s+/g, " ")];
+    const raw = keyword ? keyword[2] : part;
+    if (!keyword) position += 1;
+    return [keyword ? keyword[1] : `第 ${position} 个`, raw.replace(/\s+/g, " "), parseCall(raw)];
   });
   return { awaited: Boolean(awaited), callee, construct: /^[A-Z]/.test(callee.split(".").pop()), args };
 }
@@ -1058,7 +1087,11 @@ function argsTable(ctx, parent, args) {
   const header = ctx.lib.argRow.get("header").createInstance();
   header.name = "Header";
   append(table, header, true);
-  for (const [name, value] of args) {
+  for (const [name, value, nested] of args) {
+    if (nested) {
+      nestedArgRow(ctx, table, name, nested);
+      continue;
+    }
     const row = ctx.lib.argRow.get("row").createInstance();
     row.name = `Arg / ${name}`;
     append(table, row, true);
@@ -1073,6 +1106,23 @@ function argsTable(ctx, parent, args) {
   }
 }
 
+/** 值本身是跨多行调用的那一行：参数格照旧，值格里先写这个调用的头一行，下面是它自己的实参表，再套也一样。 */
+function nestedArgRow(ctx, table, name, call) {
+  const row = filled(ctx, table, `Arg / ${name}`, { dir: "HORIZONTAL" });
+  row.strokes = paint(COLORS.borderStrong);
+  row.strokeTopWeight = 1;
+  row.strokeBottomWeight = row.strokeLeftWeight = row.strokeRightWeight = 0;
+  const key = append(row, frame(ctx, "参数", { width: CALL_ARG_KEY_W, px: 8, py: 3 }));
+  key.layoutSizingVertical = "FILL";
+  key.strokes = paint(COLORS.borderStrong);
+  key.strokeRightWeight = 1;
+  key.strokeTopWeight = key.strokeBottomWeight = key.strokeLeftWeight = 0;
+  richText(ctx, key, "Name", [{ text: name, color: name.startsWith("第 ") ? COLORS.desc : COLORS.tokenVariable }]);
+  const value = filled(ctx, row, "值", { px: 8, py: 4, gap: 4 });
+  richText(ctx, value, "Head", callHead(call));
+  argsTable(ctx, value, call.args);
+}
+
 /** Reader / CallBlock — Call=<被调用的名字>：返回、语句里跨多行的调用，块里一行「返回 新建 X」，下面是实参表。 */
 function callBlock(ctx, kind, call, name) {
   const { node, content } = cardShell(ctx, name, BLOCK_KINDS[kind], { kids: false });
@@ -2137,11 +2187,13 @@ function createComponents(ctx, page) {
       if (call) calls.set(code, { kind: item.kind, call, at: [...(calls.has(code) ? calls.get(code).at : []), `${fileKey}:${lineRange(item.at)[0]}`] });
     });
   }
+  calls.set(NESTED_CALL_SAMPLE, { kind: "return", call: parseCall(NESTED_CALL_SAMPLE), at: [] });
   const callBlocks = make("Reader / CallBlock", [...calls.keys()], 1, (code) => {
     const entry = calls.get(code);
     return callBlock(ctx, entry.kind, entry.call, `Call=${entry.call.callee}`);
   }, (item) => item.node);
   lib.callBlockAt = new Map([...calls].flatMap(([code, entry]) => entry.at.map((key) => [key, callBlocks.get(code)])));
+  lib.nestedCall = callBlocks.get(NESTED_CALL_SAMPLE);
   lib.tree = make("Reader / BlockTree", fileKeys, 2, (fileKey) => blockTree(ctx, lib, fileKey), (item) => item.node);
   return { lib, sets };
 }
@@ -2506,7 +2558,8 @@ async function build(api, stage = () => {}) {
   // 调用与构造：块树里这几块在画板下方被截掉，单独摆出来看
   const callBoard = frame(ctx, "Prototype / 调用 · 构造", { width: TREE_W + 2 * VIEW_PAD, pad: VIEW_PAD, gap: 8, fill: COLORS.editor });
   page.appendChild(callBoard);
-  for (const [key, component] of [["routes:83", lib.card.get("routes:83").get("preview")], ["routes:45", lib.callBlockAt.get("routes:45")]]) {
+  for (const [key, component] of [["routes:83", lib.card.get("routes:83").get("preview")], ["routes:45", lib.callBlockAt.get("routes:45")],
+    ["嵌套", lib.nestedCall]]) {
     const instance = component.node.createInstance();
     instance.name = `Block / ${key}`;
     append(callBoard, instance, true);
@@ -2630,6 +2683,6 @@ async function run(api) {
 }
 
 if (typeof module !== "undefined") {
-  module.exports = { parseCall, ROUTER_SAMPLE, ROUTE_SAMPLE, REVIEW, REVIEW_ISSUES, ASK_SAMPLE, BEAT_SCHEDULE, ENUM_SAMPLE, SQLA_MODEL, ITERATION_SAMPLES, iterationSegments, facetCounts, filteredOut, filterPresets, blockAttributes, FILTER_FILE, NOTES, NOTE_DRAFT, PLAIN_KINDS, parseImport, parseVariable, translateCode, build, run, nextPageName, PAGE_NAME, NAMESPACE, TREE, WORKSPACES, FILES, CODE_TREE, BLOCK_KINDS, SOURCES, blockCode, lineRange, walkTree, translateBlock, highlightCode, parseSignature, typeSegments };
+  module.exports = { NESTED_CALL_SAMPLE, parseCall, ROUTER_SAMPLE, ROUTE_SAMPLE, REVIEW, REVIEW_ISSUES, ASK_SAMPLE, BEAT_SCHEDULE, ENUM_SAMPLE, SQLA_MODEL, ITERATION_SAMPLES, iterationSegments, facetCounts, filteredOut, filterPresets, blockAttributes, FILTER_FILE, NOTES, NOTE_DRAFT, PLAIN_KINDS, parseImport, parseVariable, translateCode, build, run, nextPageName, PAGE_NAME, NAMESPACE, TREE, WORKSPACES, FILES, CODE_TREE, BLOCK_KINDS, SOURCES, blockCode, lineRange, walkTree, translateBlock, highlightCode, parseSignature, typeSegments };
 }
 if (typeof figma !== "undefined") void run(figma);
diff --git a/docs/prototype/code-reader/figma-plugin/test.js b/docs/prototype/code-reader/figma-plugin/test.js
index 36f3721..7bcfc5a 100644
--- a/docs/prototype/code-reader/figma-plugin/test.js
+++ b/docs/prototype/code-reader/figma-plugin/test.js
@@ -2,7 +2,7 @@ const assert = require("node:assert/strict");
 const { test } = require("node:test");
 const fs = require("node:fs");
 const path = require("node:path");
-const { parseCall, ROUTER_SAMPLE, ROUTE_SAMPLE, REVIEW, REVIEW_ISSUES, ASK_SAMPLE, BEAT_SCHEDULE, ENUM_SAMPLE, SQLA_MODEL, ITERATION_SAMPLES, iterationSegments, facetCounts, filteredOut, filterPresets, FILTER_FILE, NOTES, NOTE_DRAFT, PLAIN_KINDS, build, run, nextPageName, PAGE_NAME, NAMESPACE, WORKSPACES, FILES, CODE_TREE, BLOCK_KINDS, SOURCES, blockCode, lineRange, walkTree, translateBlock, highlightCode, parseSignature, parseImport, parseVariable, typeSegments } = require("./code.js");
+const { NESTED_CALL_SAMPLE, parseCall, ROUTER_SAMPLE, ROUTE_SAMPLE, REVIEW, REVIEW_ISSUES, ASK_SAMPLE, BEAT_SCHEDULE, ENUM_SAMPLE, SQLA_MODEL, ITERATION_SAMPLES, iterationSegments, facetCounts, filteredOut, filterPresets, FILTER_FILE, NOTES, NOTE_DRAFT, PLAIN_KINDS, build, run, nextPageName, PAGE_NAME, NAMESPACE, WORKSPACES, FILES, CODE_TREE, BLOCK_KINDS, SOURCES, blockCode, lineRange, walkTree, translateBlock, highlightCode, parseSignature, parseImport, parseVariable, typeSegments } = require("./code.js");
 const { fakeFigma } = require("../../figma-lab/fake-figma");
 
 function action(node) { return node.reactions[0].actions[0]; }
@@ -88,7 +88,7 @@ const EXPECTED_SETS = [
   ["Function / upload_current_user_avatar", 2],
   ["Variable / payload", 2],
   ["Variable / avatar_url", 2],
-  ["Reader / CallBlock", 1],
+  ["Reader / CallBlock", 2],
   ["Reader / BlockTree", 3],
 ];
 
@@ -487,7 +487,7 @@ test("calls written over several lines spread their arguments into a table; one-
   const update = parseCall(SOURCES.routes.slice(82, 94).join("\n").replace(/^\s*user = /, ""));
   assert.equal(update.awaited, true);
   assert.equal(update.construct, false);
-  assert.deepEqual(update.args.slice(0, 3), [["第 1 个", "db"], ["user_id", "user_id"], ["display_name", "body.display_name"]]);
+  assert.deepEqual(update.args.slice(0, 3).map(([name, value]) => [name, value]), [["第 1 个", "db"], ["user_id", "user_id"], ["display_name", "body.display_name"]]);
   assert.equal(update.args.length, 10);
   assert.equal(parseCall("await user_service.get_user(db, user_id=user_id)"), null, "one line stays a line");
 
@@ -506,6 +506,17 @@ test("calls written over several lines spread their arguments into a table; one-
   assert.equal(named(named(variable, "Prop / 初始值"), "Value").characters, "等待 调用 user_service.update_user · 10 个参数");
   assert.equal(named(named(variable, "Arg / 第 1 个"), "Value").characters, "db");
   assert.ok(!named(lib.card.get("routes:43").get("preview").node, "Args"), "one-line call keeps its one-line value");
+  // 嵌套：实参的值本身是跨多行的调用，值格里再放它的头一行和实参表；一行写完的实参照旧一行
+  const nested = parseCall(NESTED_CALL_SAMPLE);
+  assert.equal(nested.args.length, 15);
+  const inner = nested.args.find(([name]) => name === "credentials_present")[2];
+  assert.equal(inner.callee, "CredentialPresence");
+  assert.equal(inner.args.length, 4);
+  assert.equal(nested.args.find(([name]) => name === "jsapi_ready")[2], null);
+  assert.equal(inner.args.find(([name]) => name === "wechat_pay_private_key")[2], null, "a multi-line `and` expression is not a call");
+  const row = named(lib.nestedCall.node, "Arg / credentials_present");
+  assert.equal(named(row, "Head").characters, "新建 CredentialPresence · 4 个参数");
+  assert.equal(row.findAll((node) => node.name.startsWith("Arg / ")).length, 4);
 });
 
 test("block kinds show as icons, the legend lists every kind with its name", async () => {