// ==UserScript==
// @name         湖北专业技术人员继续教育公需科目(hb12333.com)学习助手
// @namespace    https://card.wlxy.live/details/HBZJ0001
// @version      1.1
// @description  湖北省专业技术人员继续教育公需科目hbzsgx.hb12333.com跳转hbzj-train.yxlearning.com平台学习助手：一键自动看课与考试；官方1:1全自动课时完成，标准用户可体验3个视频章节，会员30天不限量。
// @author       柠檬真酸
// @match        https://hbzj-train.yxlearning.com/*
// @match        https://*.yxlearning.com/*
// @match        https://hbzsgx.hb12333.com/*
// @icon         https://huaweicloudobs.ahjxjy.cn/895789f9086469785b846d30c0ed95f9.png
// @connect      hbzj-train.yxlearning.com
// @connect      yxlearning.com
// @connect      oa23.ahzsksw.cn
// @connect      huaweicloudobs.ahjxjy.cn
// @connect      card.wlxy.live
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @run-at       document-start
// @antifeature  payment  标准用户可体验3个视频章节，开通会员不限量
// @antifeature  membership  需授权校验
// @license      All Rights Reserved
// ==/UserScript==

(function () {
  "use strict";

  const SCRIPT_VERSION = "0.3.4";
  const PAGE = typeof unsafeWindow !== "undefined" ? unsafeWindow : window;
  const PANEL_LOGO_URL =
    "https://huaweicloudobs.ahjxjy.cn/895789f9086469785b846d30c0ed95f9.png";
  const FALLBACK_ORIGIN = "https://hbzj-train.yxlearning.com";
  const API_PREFIX = "/train";

  const PATH_ACCOUNT_INFO = `${API_PREFIX}/login/get-account-info.gson`;
  const PATH_STUDY_LIST = `${API_PREFIX}/cms/study/find-my-study-info.gson`;
  const PATH_STUDY_YEARS = `${API_PREFIX}/cms/study/find-my-study-info-yearlist.gson`;
  const PATH_CLASS_YEARS = `${API_PREFIX}/cms/study/get-class-year-info.gson`;
  const PATH_MY_CLASS = `${API_PREFIX}/class/my-class.gson`;
  const PATH_MY_CLASS_BOOKS = `${API_PREFIX}/class/my-class-books.gson`;
  const PATH_VIDEO_SV = `${API_PREFIX}/cms/my-video/sv.gson`;
  const PATH_VIDEO_CV = `${API_PREFIX}/cms/my-video/cv.gson`;
  const PATH_UPDATE_LAST_VIDEO = `${API_PREFIX}/cms/my-video/update-last-video.gson`;
  const PATH_EXAM_LIST = `${API_PREFIX}/cms/paper/find-paper-list.gson`;
  const PATH_EXAM_DETAIL = `${API_PREFIX}/cms/paper/get-paper-detail.gson`;
  const PATH_EXAM_CHECK_STATUS = `${API_PREFIX}/cms/paper/check-my-exam-status.gson`;
  const PATH_EXAM_SAVE_RECORD = `${API_PREFIX}/cms/paper/save-my-exam-record.gson`;
  const PATH_EXAM_START = `${API_PREFIX}/cms/paper/start-do-paper-or-test.gson`;
  const PATH_EXAM_SUBMIT = `${API_PREFIX}/cms/paper/submit-paper.gson`;
  const CMS_ACCOUNT_KEY = "cmsAccountInfo";

  const PINNED_CLOUD_HOST = "oa23.ahzsksw.cn";
  const DEFAULT_CLOUD_API_BASE = "https://oa23.ahzsksw.cn";
  const CLOUD_TOKEN_KEY = "hbzj_cloud_token_v1";
  const CLOUD_LEASE_CACHE_KEY = "hbzj_cloud_lease_cache_v1";
  const CLOUD_API_BASE_KEY = "hbzj_cloud_api_base_v1";
  const DEFAULT_FREE_CHAPTER_LIMIT = 3;
  const PRO_BUY_URL = "https://card.wlxy.live/details/3D736BD3";
  const PRO_DAYS = 30;
  const PANEL_NOTICE_FALLBACK = "\u6e56\u5317\u4e13\u6280\u57f9\u8bad\u5b66\u4e60\u52a9\u624b";
  const DEFAULT_PANEL_NOTICE_PATH = "/api/hbzj/panel-notice";

  const QUEUE_KEY = "hbzj_project_queue_v1";
  const PANEL_POS_KEY = "hbzj_panel_pos_v1";
  const PANEL_COLLAPSED_KEY = "hbzj_panel_collapsed_v1";
  const AUTH_CACHE_KEY = "hbzj_auth_cache_v1";
  const YEAR_KEY = "hbzj_year_v1";

  const EFFICIENCY_JUMP_RATIO = 0.99;
  const CV_INTERVAL_MS = 120000;
  const CV_STEP_SECONDS = 120;
  const SV_BEFORE_CV_MS = 5000;
  const WATCH_MAX_ROUNDS = 200;
  const ENGINE_TICK_MS = 1200;
  const EXAM_PASS_RETRY = 2;
  const CV_INTERVAL_MINUTES = CV_INTERVAL_MS / 60000;

  const state = {
    enabled: false,
    engineRunning: false,
    panelProjects: [],
    panelRefreshing: false,
    chapterPreview: [],
    chapterPreviewLoading: false,
    queueWareTotal: 0,
    queueWareDone: 0,
    userProfile: null,
    panelHint: "",
    lastUserAction: "",
    runLogs: [],
    studyYear:
      Number(
        (typeof unsafeWindow !== "undefined" ? unsafeWindow : window).localStorage.getItem(YEAR_KEY) ||
          new Date().getFullYear()
      ) || null,
    yearOptions: [],
    cloudToken: String(
      (typeof unsafeWindow !== "undefined" ? unsafeWindow : window).localStorage.getItem(CLOUD_TOKEN_KEY) || ""
    ).trim(),
    cloudLease: "",
    cloudLeaseExp: 0,
    cloudTier: "unknown",
    cloudProExpireAt: 0,
    cloudRevoked: false,
    freeChapterLimit: DEFAULT_FREE_CHAPTER_LIMIT,
    freeUsedChapters: 0,
    proBuyUrl: PRO_BUY_URL,
    cloudApiBase: "",
    panelNoticePath: DEFAULT_PANEL_NOTICE_PATH,
    remotePanelNotice: "",
    _lastProErr: "",
    _bootLoaded: false,
    _capturedLists: { learning: [], completed: [] },
    _accountId: "",
  };

  state.cloudApiBase = resolvePinnedCloudApiBase();

  function trace(msg) {
    console.log(`[\u6e56\u5317\u4e13\u6280\u52a9\u624b] ${String(msg || "")}`);
  }

  function escHtml(s) {
    return String(s ?? "")
      .replace(/&/g, "&")
      .replace(/</g, "&lt;")
      .replace(/>/g, "&gt;")
      .replace(/"/g, "&quot;");
  }

  function sleep(ms) {
    return new Promise((r) => setTimeout(r, ms));
  }

  function pageStorage() {
    try {
      return PAGE.localStorage;
    } catch (_) {
      return localStorage;
    }
  }

  function readJson(key, fallback) {
    try {
      const raw = pageStorage().getItem(key);
      return raw ? JSON.parse(raw) : fallback;
    } catch (_) {
      return fallback;
    }
  }

  function writeJson(key, val) {
    pageStorage().setItem(key, JSON.stringify(val));
  }

  function detectLogKind(msg, kind) {
    if (kind) return String(kind);
    const s = String(msg || "");
    if (/^\u5f00\u59cb\uff1a/.test(s)) return "start";
    if (/^\u5b66\u4e60\uff1a/.test(s)) return "study";
    if (/^\u5b8c\u6210\uff1a/.test(s)) return "done";
    if (/^\u8003\u8bd5\uff1a/.test(s) || /\u8003\u8bd5.*\u5df2\u63d0\u4ea4/.test(s)) return "exam";
    if (/^\u5df2\u505c\u6b62/.test(s)) return "stop";
    if (/\u6bcf.*\u5206\u949f|\u8010\u5fc3\u7b49\u5f85|\u4ecd\u5728\u8fd0\u884c/.test(s)) return "hint";
    if (/\u5931\u8d25|\u9519\u8bef|\u4e0a\u9650|\u8df3\u8fc7|\u65e0\u89c6\u9891\u6e90|\u7535\u5b50\u4e66|\u8bf7\u5148\u52fe\u9009/.test(s)) return "warn";
    return "info";
  }

  function _rrl() {
    const el = document.getElementById("hbzj-run-log");
    if (!el) return;
    if (!state.runLogs.length) {
      el.innerHTML = `<div class="hbzj-empty-state">\u6682\u65e0\u65e5\u5fd7</div>`;
      return;
    }
    el.innerHTML = state.runLogs
      .map((item) => {
        const row = typeof item === "string" ? { time: "", msg: item, kind: detectLogKind(item) } : item;
        const time = row.time ? `<span class="hbzj-log-time">${escHtml(row.time)}</span>` : "";
        const kind = escHtml(row.kind || "info");
        return `<div class="hbzj-log-line hbzj-log-${kind}">${time}<span class="hbzj-log-text">${escHtml(row.msg || "")}</span></div>`;
      })
      .join("");
  }

  function log(msg, kind) {
    const text = String(msg || "");
    const row = {
      time: new Date().toLocaleTimeString(),
      msg: text,
      kind: detectLogKind(text, kind),
    };
    state.runLogs.unshift(row);
    if (state.runLogs.length > 200) state.runLogs.length = 200;
    _rrl();
    trace(text);
  }

  function _lwh() {
    if (state._studyWaitHintShown) return;
    state._studyWaitHintShown = true;
    log(`\u770b\u8bfe\u8fdb\u5ea6\u7ea6\u6bcf ${CV_INTERVAL_MINUTES} \u5206\u949f\u66f4\u65b0\u4e00\u6b21\uff0c\u7b49\u5f85\u671f\u95f4\u811a\u672c\u4ecd\u5728\u8fd0\u884c`, "hint");
  }

  function resolvePinnedCloudApiBase() {
    try {
      const raw = String(pageStorage().getItem(CLOUD_API_BASE_KEY) || DEFAULT_CLOUD_API_BASE)
        .trim()
        .replace(/\/+$/, "");
      if (!raw || !new RegExp(PINNED_CLOUD_HOST.replace(/\./g, "\\."), "i").test(raw)) {
        try {
          pageStorage().setItem(CLOUD_API_BASE_KEY, DEFAULT_CLOUD_API_BASE);
        } catch (_) {}
        return DEFAULT_CLOUD_API_BASE;
      }
      return raw;
    } catch (_) {
      return DEFAULT_CLOUD_API_BASE;
    }
  }

  function getCloudApiBase() {
    return String(state.cloudApiBase || DEFAULT_CLOUD_API_BASE).trim().replace(/\/+$/, "");
  }

  function getPanelNoticeText() {
    return String(state.remotePanelNotice || PANEL_NOTICE_FALLBACK).trim() || PANEL_NOTICE_FALLBACK;
  }

  function renderPanelNotice() {
    const el = document.getElementById("hbzj-ann-text");
    if (el) el.textContent = getPanelNoticeText();
  }

  function getApiOrigin() {
    try {
      if (/yxlearning\.com$/i.test(location.hostname)) return location.origin;
    } catch (_) {}
    return FALLBACK_ORIGIN;
  }

  function uuidv4() {
    try {
      if (PAGE.crypto && typeof PAGE.crypto.randomUUID === "function") return PAGE.crypto.randomUUID();
    } catch (_) {}
    const s = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
      const r = (Math.random() * 16) | 0;
      const v = c === "x" ? r : (r & 0x3) | 0x8;
      return v.toString(16);
    });
    return s;
  }

  function toQuery(params) {
    const parts = [];
    Object.keys(params || {}).forEach((k) => {
      const v = params[k];
      if (v === undefined || v === null) return;
      parts.push(`${encodeURIComponent(k)}=${encodeURIComponent(String(v))}`);
    });
    return parts.join("&");
  }

  function toFormBody(params) {
    return toQuery(params);
  }

  function readCmsAccountInfo() {
    try {
      const raw = pageStorage().getItem(CMS_ACCOUNT_KEY);
      if (!raw || raw === "null") return null;
      const obj = JSON.parse(raw);
      return obj && typeof obj === "object" ? obj : null;
    } catch (_) {
      return null;
    }
  }

  function rememberAccountId(id) {
    const aid = String(id || "").trim();
    if (!aid || aid.length < 8) return;
    if (state._accountId === aid && PAGE.__hbzjAccountId === aid) return;
    state._accountId = aid;
    PAGE.__hbzjAccountId = aid;
    writeAuthCache({ accountId: aid });
  }

  function getAccountId() {
    if (state._accountId) return state._accountId;
    if (PAGE.__hbzjAccountId) {
      state._accountId = String(PAGE.__hbzjAccountId);
      return state._accountId;
    }
    const cms = readCmsAccountInfo();
    if (cms?.accountId) {
      rememberAccountId(cms.accountId);
      return state._accountId;
    }
    const cache = readAuthCache();
    if (cache.accountId) {
      state._accountId = String(cache.accountId);
      return state._accountId;
    }
    return "";
  }

  function readAuthCache() {
    return readJson(AUTH_CACHE_KEY, {}) || {};
  }

  function writeAuthCache(partial) {
    const prev = readAuthCache();
    try {
      pageStorage().setItem(AUTH_CACHE_KEY, JSON.stringify(Object.assign({}, prev, partial || {})));
    } catch (_) {}
  }

  function hasPlatformAuth() {
    return !!getAccountId() || !!readCmsAccountInfo();
  }

  function unwrapPlatformJson(json) {
    if (!json || typeof json !== "object") {
      return { code: -1, msg: "empty", data: null, raw: json };
    }
    if (json.respCode != null && json.attribute !== undefined) {
      return {
        code: Number(json.respCode),
        msg: String(json.respDesc || json.msg || ""),
        data: json.attribute,
        raw: json,
      };
    }
    return {
      code: Number(json.code != null ? json.code : json.respCode),
      msg: String(json.msg || json.respDesc || ""),
      data: json.data !== undefined ? json.data : json.attribute,
      raw: json,
    };
  }

  function pickList(data) {
    if (Array.isArray(data)) return data;
    if (!data || typeof data !== "object") return [];
    if (Array.isArray(data.list)) return data.list;
    if (data.listPage && Array.isArray(data.listPage.list)) return data.listPage.list;
    if (data.data && Array.isArray(data.data.list)) return data.data.list;
    if (Array.isArray(data.myClassCourseRPList)) return data.myClassCourseRPList;
    if (Array.isArray(data.data)) return data.data;
    if (Array.isArray(data.records)) return data.records;
    if (Array.isArray(data.content)) return data.content;
    if (Array.isArray(data.rows)) return data.rows;
    if (Array.isArray(data.courseData)) return data.courseData;
    if (data.data && typeof data.data === "object") return pickList(data.data);
    return [];
  }

  function ingestStudyListPayload(url, json) {
    try {
      if (!/find-my-study-info\.gson/i.test(url)) return;
      const un = unwrapPlatformJson(json);
      if (Number(un.code) !== 200) return;
      const rows = pickList(un.data);
      if (!rows.length) return;
      const learning = [];
      const completed = [];
      for (const row of rows) {
        const p = mapProjectRow(row);
        if (p.listSource === "completed") completed.push(p);
        else learning.push(p);
      }
      const bag = state._capturedLists || { learning: [], completed: [] };
      const merge = (src, arr) => {
        const byId = new Map((bag[src] || []).map((x) => [x.projectId, x]));
        for (const p of arr) byId.set(p.projectId, p);
        bag[src] = Array.from(byId.values());
      };
      merge("learning", learning);
      merge("completed", completed);
      state._capturedLists = bag;
      if (document.getElementById("hbzj-auto-panel") && !state.panelRefreshing) {
        mergeCapturedIntoPanel(false);
      }
    } catch (_) {}
  }

  function mergeCapturedIntoPanel(preferApi) {
    const bag = state._capturedLists || { learning: [], completed: [] };
    if (!bag.learning.length && !bag.completed.length) return false;
    const byId = new Map();
    for (const p of bag.learning || []) byId.set(p.projectId, p);
    for (const p of bag.completed || []) byId.set(p.projectId, p);
    const merged = Array.from(byId.values());
    for (const p of merged) syncProjectFinishedFlags(p);
    if (!preferApi || !state.panelProjects.length) {
      state.panelProjects = merged;
      updatePanel();
    }
    return state.panelProjects.length > 0;
  }

  function installAuthHooks() {
    if (PAGE.__hbzjNetHooked) return;
    PAGE.__hbzjNetHooked = true;

    try {
      const XHR = PAGE.XMLHttpRequest;
      const open = XHR.prototype.open;
      const send = XHR.prototype.send;
      const setHeader = XHR.prototype.setRequestHeader;
      XHR.prototype.open = function (method, url) {
        try {
          this.__hbzjUrl = String(url || "");
          this.__hbzjMethod = String(method || "");
        } catch (_) {}
        return open.apply(this, arguments);
      };
      XHR.prototype.setRequestHeader = function (k, v) {
        try {
          if (/^accountid$/i.test(String(k || ""))) rememberAccountId(v);
        } catch (_) {}
        return setHeader.apply(this, arguments);
      };
      XHR.prototype.send = function () {
        try {
          this.addEventListener("load", function () {
            try {
              const url = String(this.__hbzjUrl || "");
              const text = String(this.responseText || "");
              if (!text || text.length > 5e6) return;
              const json = JSON.parse(text);
              if (/get-account-info\.gson/i.test(url)) {
                const un = unwrapPlatformJson(json);
                const info = un.data?.data || un.data || null;
                if (info?.accountId) rememberAccountId(info.accountId);
                if (info) {
                  state.userProfile = normalizeUserProfile(info);
                }
              }
              if (/yearlist|get-class-year-info/i.test(url)) {
                const years = extractYears(unwrapPlatformJson(json).data);
                if (years.length) state.yearOptions = years;
              }
              ingestStudyListPayload(url, json);
            } catch (_) {}
          });
        } catch (_) {}
        return send.apply(this, arguments);
      };
    } catch (_) {}

    try {
      const rawFetch = PAGE.fetch;
      if (typeof rawFetch === "function" && !rawFetch.__hbzjPatched) {
        const wrapped = function (input, init) {
          try {
            const h = init && init.headers;
            let aid = "";
            if (h && typeof h.get === "function") aid = h.get("accountId") || h.get("AccountId") || "";
            else if (h && typeof h === "object") aid = h.accountId || h.AccountId || "";
            if (aid) rememberAccountId(aid);
          } catch (_) {}
          const url = typeof input === "string" ? input : input && input.url;
          return rawFetch.apply(PAGE, arguments).then((res) => {
            try {
              const u = String(url || "");
              if (/find-my-study-info\.gson|get-account-info\.gson/i.test(u)) {
                res
                  .clone()
                  .json()
                  .then((json) => {
                    if (/get-account-info/i.test(u)) {
                      const un = unwrapPlatformJson(json);
                      const info = un.data?.data || un.data || null;
                      if (info?.accountId) rememberAccountId(info.accountId);
                    }
                    ingestStudyListPayload(u, json);
                  })
                  .catch(() => {});
              }
            } catch (_) {}
            return res;
          });
        };
        wrapped.__hbzjPatched = true;
        PAGE.fetch = wrapped;
      }
    } catch (_) {}
  }

  function apiUrl(path) {
    if (/^https?:\/\//i.test(path)) return path;
    return getApiOrigin() + (path.startsWith("/") ? path : `/${path}`);
  }

  async function _prq(method, path, body, opt) {
    const accountId = getAccountId();
    if (!accountId) throw new Error("\u672a\u83b7\u53d6 accountId\uff0c\u8bf7\u5148\u767b\u5f55\u5b98\u7f51\u540e\u70b9\u300c\u5237\u65b0\u300d");
    const url = apiUrl(path);
    const headers = Object.assign(
      {
        Accept: "application/json, text/plain, */*",
        accountId: accountId,
      },
      (opt && opt.headers) || {}
    );
    let payload = undefined;
    const m = String(method || "GET").toUpperCase();
    if (body !== undefined && body !== null && m !== "GET") {
      if (opt && opt.form) {
        headers["Content-Type"] = "application/x-www-form-urlencoded;charset=UTF-8";
        payload = typeof body === "string" ? body : toFormBody(body);
      } else {
        headers["Content-Type"] = "application/json;charset=UTF-8";
        payload = typeof body === "string" ? body : JSON.stringify(body);
      }
    }

    const parseOk = (json, status) => {
      if (status < 200 || status >= 300) {
        throw new Error(json?.msg || json?.respDesc || json?.message || `HTTP ${status}`);
      }
      const un = unwrapPlatformJson(json);
      if (Number(un.code) !== 200) {
        throw new Error(un.msg || `code_${un.code}`);
      }
      return un;
    };

    try {
      const pageFetch = PAGE.fetch || fetch;
      const res = await pageFetch.call(PAGE, url, {
        method: m,
        headers,
        body: payload,
        credentials: "include",
      });
      const json = await res.json().catch(() => ({}));
      return parseOk(json, res.status);
    } catch (e) {
      const msg = String((e && e.message) || e || "");
      if (!/Failed to fetch|NetworkError|CORS/i.test(msg) && /\u672a\u83b7\u53d6|HTTP |code_|accountId/i.test(msg)) {
        throw e;
      }
      trace(`\u9875\u9762 fetch \u5931\u8d25\uff0c\u6539 GM\uff1a${msg}`);
      return new Promise((resolve, reject) => {
        if (typeof GM_xmlhttpRequest !== "function") {
          reject(e);
          return;
        }
        GM_xmlhttpRequest({
          method: m,
          url,
          headers,
          data: payload,
          anonymous: false,
          onload(resp) {
            let json = {};
            try {
              json = JSON.parse(resp.responseText || "{}");
            } catch (_) {}
            try {
              resolve(parseOk(json, resp.status));
            } catch (err) {
              reject(err);
            }
          },
          onerror() {
            reject(new Error("GM \u7f51\u7edc\u9519\u8bef"));
          },
        });
      });
    }
  }

  function apiGet(path) {
    return _prq("GET", path, null);
  }

  function apiPostForm(path, body) {
    return _prq("POST", path, body, { form: true });
  }

  function apiPostJson(path, body) {
    return _prq("POST", path, body == null ? {} : body, { form: false });
  }

  function normalizeUserProfile(info) {
    if (!info || typeof info !== "object") return null;
    return {
      accountId: String(info.accountId || ""),
      name: String(info.realName || info.name || info.nickName || info.userName || "").trim(),
      loginId: String(info.loginName || info.userName || info.account || info.mobile || "").trim(),
      phone: String(info.mobile || info.phone || "").trim(),
      raw: info,
    };
  }

  function extractYears(data) {
    const arr = pickList(data);
    const years = [];
    for (const item of arr) {
      if (typeof item === "number" || /^\d{4}$/.test(String(item))) {
        years.push(Number(item));
      } else if (item && typeof item === "object") {
        const y = Number(item.year || item.studyYear || item.classYear || item.value || 0);
        if (y > 2000) years.push(y);
      }
    }
    return Array.from(new Set(years.filter((n) => n > 2000))).sort((a, b) => b - a);
  }

  function getLearningUserId() {
    return String(
      getAccountId() ||
        state.userProfile?.accountId ||
        readAuthCache().accountId ||
        ""
    ).trim();
  }

  function formatCloudTierText(tier) {
    if (state.cloudRevoked) return "\u5df2\u505c\u7528";
    const t = String(tier || "").toLowerCase();
    if (t === "pro") return "\u5df2\u5f00\u901a";
    if (t === "free") return "\u6807\u51c6\u7528\u6237";
    if (t === "revoked") return "\u5df2\u505c\u7528";
    if (t === "unknown") return "—";
    return tier ? String(tier) : "—";
  }

  function formatExpireText(ts) {
    const n = Number(ts || 0);
    if (!n) return "—";
    const d = new Date(n * 1000);
    return Number.isNaN(d.getTime()) ? "—" : d.toLocaleString();
  }

  function isCloudProTier() {
    return !state.cloudRevoked && String(state.cloudTier || "").toLowerCase() === "pro";
  }

  function readCloudLeaseCache() {
    try {
      const raw = pageStorage().getItem(CLOUD_LEASE_CACHE_KEY);
      if (!raw) return null;
      const p = JSON.parse(raw);
      const lease = String(p.lease || "").trim();
      const exp = Number(p.exp || 0);
      if (!lease || !Number.isFinite(exp) || exp <= 0) return null;
      return {
        lease,
        exp,
        tier: p.tier || "",
        proExpireAt: Number(p.proExpireAt || 0),
      };
    } catch (_) {
      return null;
    }
  }

  function writeCloudLeaseCache(lease, exp, extra) {
    if (!lease || !exp) {
      pageStorage().removeItem(CLOUD_LEASE_CACHE_KEY);
      return;
    }
    pageStorage().setItem(
      CLOUD_LEASE_CACHE_KEY,
      JSON.stringify(Object.assign({ lease, exp }, extra || {}))
    );
  }

  function _crq(path, method, body, headersExtra) {
    const url = `${getCloudApiBase()}${path}`;
    const headers = Object.assign(
      {
        Accept: "application/json",
        "Content-Type": "application/json;charset=UTF-8",
      },
      headersExtra || {}
    );
    if (state.cloudToken) headers.Authorization = `Bearer ${state.cloudToken}`;
    const luid = getLearningUserId();
    if (luid) headers["x-learning-user-id"] = luid;
    const payload = body == null ? null : JSON.stringify(body);
    return new Promise((resolve, reject) => {
      if (typeof GM_xmlhttpRequest !== "function") {
        reject(new Error("\u4e91\u7aef\u8bf7\u6c42\u4e0d\u53ef\u7528"));
        return;
      }
      GM_xmlhttpRequest({
        method: method || "POST",
        url,
        headers,
        data: payload,
        onload(resp) {
          let data = {};
          try {
            data = JSON.parse(String(resp.responseText || "").trim() || "{}");
          } catch (_) {
            data = {};
          }
          const status = Number(resp.status || 0);
          if (status === 404) {
            reject(new Error("cloud_404"));
            return;
          }
          if (status < 200 || status >= 300) {
            reject(new Error(String(data.detail || data.message || data.msg || `http_${status}`)));
            return;
          }
          resolve(data);
        },
        onerror() {
          reject(new Error("\u4e91\u7aef\u7f51\u7edc\u9519\u8bef"));
        },
        ontimeout() {
          reject(new Error("\u4e91\u7aef\u8bf7\u6c42\u8d85\u65f6"));
        },
      });
    });
  }

  async function _fpn() {
    try {
      const text = await new Promise((resolve, reject) => {
        GM_xmlhttpRequest({
          method: "GET",
          url: `${getCloudApiBase()}${state.panelNoticePath || DEFAULT_PANEL_NOTICE_PATH}`,
          headers: { Accept: "text/plain, */*" },
          onload(resp) {
            if (resp.status >= 200 && resp.status < 300) resolve(String(resp.responseText || "").trim());
            else reject(new Error("notice_fail"));
          },
          onerror() {
            reject(new Error("notice_net"));
          },
        });
      });
      if (text) state.remotePanelNotice = text;
      renderPanelNotice();
    } catch (_) {}
  }

  async function _fcc() {
    try {
      const data = await _crq("/api/hbzj/client-config", "GET", null, {
        Accept: "application/json",
      });
      if (data?.panelNoticePath) {
        const p = String(data.panelNoticePath).trim();
        if (p) state.panelNoticePath = p.startsWith("/") ? p : `/${p}`;
      }
      if (data?.freeChapterLimit != null) {
        state.freeChapterLimit = Number(data.freeChapterLimit) || DEFAULT_FREE_CHAPTER_LIMIT;
      }
      if (data?.proBuyUrl) {
        const buy = String(data.proBuyUrl).trim();
        if (buy) state.proBuyUrl = buy;
      }
      state.cloudApiBase = resolvePinnedCloudApiBase();
    } catch (_) {}
    await _fpn();
  }

  function formatCloudAuthError(err) {
    const em = String(err?.message || err || "");
    if (/\u672a\u90e8\u7f72|404|cloud_404/i.test(em)) return "\u4e91\u7aef\u670d\u52a1\u6682\u4e0d\u53ef\u7528";
    if (/invalid token/i.test(em)) return "Token \u65e0\u6548";
    if (/revoked/i.test(em)) return "Token \u5df2\u88ab\u7981\u7528";
    if (/expired/i.test(em)) return "Token \u5df2\u8fc7\u671f";
    return em || "\u6821\u9a8c\u5931\u8d25";
  }

  function _acd(data) {
    if (!data || typeof data !== "object") return;
    if (data.lease) state.cloudLease = String(data.lease);
    const exp = Number(data.exp ?? data.expire_at ?? data.expires_at ?? data.lease_exp ?? 0);
    if (Number.isFinite(exp) && exp > 0) state.cloudLeaseExp = Math.floor(exp);
    if (data.tier) state.cloudTier = String(data.tier).trim().toLowerCase();
    const lim = data.free_chapter_limit ?? data.freeChapterLimit ?? data.free_video_limit;
    const used = data.free_used_chapters ?? data.freeUsedChapters ?? data.free_used_videos;
    if (lim != null) state.freeChapterLimit = Number(lim) || DEFAULT_FREE_CHAPTER_LIMIT;
    if (used != null) state.freeUsedChapters = Number(used) || 0;
    const proExp = Number(data.pro_expires_at ?? data.proExpiresAt ?? data.pro_expire_at ?? 0);
    if (Number.isFinite(proExp) && proExp > 0) state.cloudProExpireAt = Math.floor(proExp);
    if (!state.cloudTier) state.cloudTier = state.cloudToken ? "pro" : "free";
    writeCloudLeaseCache(state.cloudLease, state.cloudLeaseExp, {
      tier: state.cloudTier,
      proExpireAt: state.cloudProExpireAt,
    });
  }

  async function _ecl(force) {
    const now = Math.floor(Date.now() / 1000);
    if (!force && state.cloudLease && state.cloudLeaseExp - now > 60) return true;
    const cached = readCloudLeaseCache();
    if (!force && cached && cached.exp - now > 60) {
      state.cloudLease = cached.lease;
      state.cloudLeaseExp = cached.exp;
      state.cloudTier = cached.tier || state.cloudTier;
      state.cloudProExpireAt = cached.proExpireAt || state.cloudProExpireAt;
      updateCloudPanelUI();
      return true;
    }
    const luid = getLearningUserId();
    if (!luid) {
      state.cloudTier = state.cloudToken ? "pro" : "free";
      updateCloudPanelUI();
      return false;
    }
    try {
      const u = state.userProfile || {};
      const data = await _crq("/api/hbzj/lease", "POST", {
        learning_user_id: luid,
        lease: state.cloudLease || undefined,
        site: "hbzj",
        script_version: SCRIPT_VERSION,
        name: String(u.name || "").trim(),
        realName: String(u.name || "").trim(),
        userName: String(u.loginId || "").trim(),
        phone: String(u.phone || "").trim(),
      });
      state.cloudRevoked = false;
      _acd(data);
      return !!state.cloudLease;
    } catch (e) {
      const em = String(e?.message || e);
      if (/revoked|invalid token|expired/i.test(em)) {
        state.cloudRevoked = true;
        state.cloudTier = "revoked";
        state.cloudLease = "";
        writeCloudLeaseCache("", 0);
        updateCloudPanelUI();
        throw e;
      }
      if (em === "cloud_404") {
        state.panelHint = "";
        updateCloudPanelUI();
        return false;
      }
      if (cached && cached.lease && cached.exp - now > -300 && isCloudProTier()) {
        state.cloudLease = cached.lease;
        state.cloudLeaseExp = cached.exp;
        state.cloudTier = cached.tier || "pro";
        updateCloudPanelUI();
        return true;
      }
      trace(`\u4e91\u7aef\u6388\u6743\u5931\u8d25\uff1a${em || "\u7f51\u7edc\u9519\u8bef"}`);
      updateCloudPanelUI();
      return false;
    }
  }

  async function _sct(token) {
    const tk = String(token || "").trim();
    state.cloudToken = tk;
    if (tk) pageStorage().setItem(CLOUD_TOKEN_KEY, tk);
    else pageStorage().removeItem(CLOUD_TOKEN_KEY);
    if (!tk) {
      state.cloudTier = "free";
      state.cloudProExpireAt = 0;
      state.cloudRevoked = false;
      try {
        await _ecl(true);
      } catch (_) {}
      updateCloudPanelUI();
      trace("\u5df2\u6e05\u9664\u6388\u6743\u7801");
      return true;
    }
    try {
      await _crq("/api/hbzj/license/verify", "GET", null);
      await _ecl(true);
      if (!isCloudProTier()) state.cloudTier = "pro";
      state.cloudRevoked = false;
      updateCloudPanelUI();
      trace("\u4f1a\u5458\u72b6\u6001\u5df2\u66f4\u65b0");
      return true;
    } catch (e) {
      const tip = formatCloudAuthError(e);
      if (state._lastProErr !== tip) {
        state._lastProErr = tip;
        trace(`\u6388\u6743\u6821\u9a8c\u5931\u8d25\uff1a${tip}`);
      }
      updateCloudPanelUI();
      return false;
    }
  }

  async function _acp() {
    try {
      await _ecl(true);
    } catch (_) {
      return false;
    }
    return !!state.cloudLease;
  }

  async function _rcq() {
    try {
      const data = await _crq("/api/hbzj/study/consume", "POST", {
        lease: state.cloudLease || undefined,
        learning_user_id: getLearningUserId(),
        kind: "chapter",
      });
      if (data && data.ok === false) {
        throw new Error(String(data.message || "quota_denied"));
      }
      _acd(data);
      return true;
    } catch (e) {
      const em = String(e?.message || e);
      if (/free_quota_exhausted|quota|403|exam_requires_pro/i.test(em)) {
        openProModal();
      } else {
        trace(`\u4e91\u7aef\uff1a${em || "\u7f51\u7edc\u9519\u8bef"}`);
      }
      return false;
    }
  }

  async function _ate() {
    try {
      await _ecl(true);
    } catch (_) {
      return false;
    }
    if (!state.cloudLease) return false;
    try {
      const data = await _crq("/api/hbzj/study/can-exam", "POST", {
        lease: state.cloudLease || undefined,
        learning_user_id: getLearningUserId(),
      });
      if (data && data.ok !== false && data.success !== false) return true;
    } catch (e) {
      trace(`\u8003\u8bd5\u6821\u9a8c\uff1a${e?.message || e}`);
    }
    openProModal();
    return false;
  }

  function openProBuyPage() {
    try {
      PAGE.open(state.proBuyUrl || PRO_BUY_URL, "_blank");
    } catch (_) {
      location.href = state.proBuyUrl || PRO_BUY_URL;
    }
  }

  function closeProModal() {
    document.getElementById("hbzj-pro-modal")?.remove();
  }

  function openProModal() {
    closeProModal();
    const modal = document.createElement("div");
    modal.id = "hbzj-pro-modal";
    modal.innerHTML = `
      <div class="hbzj-pro-card">
        <div class="hbzj-pro-title">\u5f00\u901a\u4f1a\u5458</div>
        <div class="hbzj-pro-sub">\u5982\u9700\u7ee7\u7eed\u4f7f\u7528\u5168\u90e8\u5b66\u4e60\u4e0e\u8003\u8bd5\u529f\u80fd\uff0c\u8bf7\u5f00\u901a\u4f1a\u5458</div>
        <div class="hbzj-pro-sec">
          <h4>\u4f1a\u5458\u6743\u76ca</h4>
          <ul>
            <li>\u5b8c\u6574\u8bfe\u7a0b\u5b66\u4e60</li>
            <li>\u81ea\u52a8\u8003\u8bd5</li>
            <li>\u6709\u6548\u671f ${PRO_DAYS} \u5929</li>
          </ul>
        </div>
        <div class="hbzj-pro-sec">
          <h4>\u5f00\u901a\u65b9\u5f0f</h4>
          <p>\u524d\u5f80\u8d2d\u4e70\u9875\u83b7\u53d6\u6388\u6743\u7801\uff0c\u5728\u300c\u8bbe\u7f6e\u300d\u4e2d\u7c98\u8d34\u5e76\u4fdd\u5b58\u3002</p>
          <button class="hbzj-pro-buy-btn" type="button" id="hbzj-pro-buy">\u524d\u5f80\u8d2d\u4e70\u9875</button>
        </div>
        <div class="hbzj-pro-actions">
          <button class="hbzj-pro-close" type="button" id="hbzj-pro-close">\u6211\u77e5\u9053\u4e86</button>
        </div>
      </div>`;
    document.body.appendChild(modal);
    modal.querySelector("#hbzj-pro-buy")?.addEventListener("click", () => openProBuyPage());
    modal.querySelector("#hbzj-pro-close")?.addEventListener("click", () => closeProModal());
    modal.addEventListener("click", (e) => {
      if (e.target === modal) closeProModal();
    });
  }

  function showToast(msg) {
    let el = document.getElementById("hbzj-toast");
    if (!el) {
      el = document.createElement("div");
      el.id = "hbzj-toast";
      document.body.appendChild(el);
    }
    el.textContent = String(msg || "");
    el.classList.add("show");
    clearTimeout(showToast._t);
    showToast._t = setTimeout(() => el.classList.remove("show"), 2600);
  }

  function loadQueue() {
    return readJson(QUEUE_KEY, []);
  }

  function saveQueue(list) {
    writeJson(QUEUE_KEY, Array.isArray(list) ? list : []);
  }

  function isEbookVideo(v) {
    return Number(v?.type) === 2;
  }

  function videoTotalSeconds(v) {
    const n = Number(v?.duration || v?.videoDuration || v?.totalDuration || 0);
    return Math.max(1, Math.ceil(n));
  }

  function videoStudySeconds(v) {
    const total = videoTotalSeconds(v);
    const watched = Math.max(0, Number(v?.watchTimeLength || 0));
    const rate = Number(v?.learnSpeed || 0);
    const fromRate = rate > 0 ? Math.floor((total * rate) / 100) : 0;
    return Math.max(watched, fromRate);
  }

  function studiedSecondsFromRate(total, rate) {
    const t = Math.max(1, Number(total) || 1);
    const r = Math.max(0, Math.min(100, Number(rate) || 0));
    return Math.min(t, Math.floor((t * r) / 100));
  }

  function _ppp(projectId, videoId, videoName, rate, total) {
    const pid = String(projectId || "");
    const vid = String(videoId || "");
    const studied = studiedSecondsFromRate(total, rate);
    const done = Number(rate) >= 100;
    let hit = false;
    for (const c of state.chapterPreview) {
      if (String(c.projectId) !== pid) continue;
      const same =
        (vid && String(c.videoId || "") === vid) ||
        (!vid && videoName && String(c.name || "") === String(videoName));
      if (!same) continue;
      c.studied = studied;
      c.total = Math.max(1, Number(total) || c.total || 1);
      c.done = done;
      hit = true;
    }
    if (!hit && pid && videoName) {
      const p = state.panelProjects.find((x) => String(x.projectId) === pid);
      state.chapterPreview.push({
        projectId: pid,
        projectName: p?.projectName || pid,
        videoId: vid,
        name: videoName,
        studied,
        total: Math.max(1, Number(total) || 1),
        done,
        kind: "ware",
      });
    }
    _rsp(pid);
  }

  function _rsp(projectId) {
    const pid = String(projectId || "");
    const p = state.panelProjects.find((x) => String(x.projectId) === pid);
    if (!p) return;
    const items = state.chapterPreview.filter(
      (c) => String(c.projectId) === pid && c.kind !== "exam" && Math.max(0, Number(c.total) || 0) > 0
    );
    if (!items.length) return;
    let studied = 0;
    let total = 0;
    for (const c of items) {
      studied += Math.max(0, Number(c.studied) || 0);
      total += Math.max(0, Number(c.total) || 0);
    }
    if (total <= 0) return;
    const progress = Math.min(100, (studied / total) * 100);
    p.studyProgress = Number(progress.toFixed(1));
    if (progress >= 100) {
      p.videoFinishedStatus = true;
      if (!isProjectFullyFinished(p)) p.studyLabel = "\u5df2\u5b66\u5b8c";
    } else if (progress > 0) {
      p.studyLabel = `\u5b66\u4e60\u4e2d ${p.studyProgress}%`;
    } else {
      p.studyLabel = "\u672a\u5b66\u4e60";
    }
    syncProjectFinishedFlags(p);
  }

  function isVideoDone(v) {
    if (!v) return true;
    if (isEbookVideo(v)) return true;
    const speed = Number(v.learnSpeed || 0);
    return speed >= 100;
  }

  function videoDisplayStudiedSeconds(v) {
    const total = videoTotalSeconds(v);
    const raw = videoStudySeconds(v);
    if (isVideoDone(v)) return Math.max(raw, total);
    return Math.min(raw, total);
  }

  function formatStudyProgressLog(name, rate, total) {
    const studiedSec = studiedSecondsFromRate(total, rate);
    return `\u5b66\u4e60\uff1a${name}\u5df2\u5b66${formatMinutes(studiedSec)}/${formatMinutes(total)}`;
  }

  function formatMinutes(sec) {
    const s = Math.max(0, Number(sec) || 0);
    const m = s / 60;
    if (m >= 100) return `${Math.round(m)} \u5206\u949f`;
    if (m >= 10) return `${m.toFixed(0)} \u5206\u949f`;
    return `${m.toFixed(1)} \u5206\u949f`;
  }

  function wareProgressPct(studied, total, done) {
    if (done) return 100;
    const t = Math.max(1, Number(total) || 1);
    return Math.min(100, Math.round((Math.max(0, Number(studied) || 0) / t) * 100));
  }

  function videoNameOf(v) {
    const video = String(v?.videoName || v?.name || v?.title || "").trim();
    const course = String(v?.courseName || v?.myClassCourseName || "").trim();
    if (video && course && !video.includes(course)) return `${course} · ${video}`;
    return video || course || String(v?.myClassCourseVideoId || "\u89c6\u9891");
  }

  function videoSourceOf(v) {
    return String(v?.baiJiaYunVideoSource || v?.ccVideoSource || v?.videoSource || "").trim();
  }

  function flattenVideosFromBooks(booksData, myClassId) {
    let courseData = [];
    if (Array.isArray(booksData)) courseData = booksData;
    else if (Array.isArray(booksData?.myClassCourseRPList)) courseData = booksData.myClassCourseRPList;
    else if (Array.isArray(booksData?.courseData)) courseData = booksData.courseData;
    else if (Array.isArray(booksData?.data?.myClassCourseRPList)) courseData = booksData.data.myClassCourseRPList;
    else if (Array.isArray(booksData?.data?.courseData)) courseData = booksData.data.courseData;
    else if (Array.isArray(booksData?.data)) courseData = booksData.data;
    else courseData = pickList(booksData);

    const out = [];
    for (const course of courseData || []) {
      const courseName = String(course?.courseName || course?.name || course?.title || "").trim();
      const vids = Array.isArray(course?.videoRPs) ? course.videoRPs : [];
      for (const v of vids) {
        out.push({
          ...v,
          myClassId: myClassId || v.myClassId,
          myClassCourseId: v.myClassCourseId || course.myClassCourseId || course.id,
          courseType: course.type,
          courseName: courseName || v.courseName || "",
        });
      }
    }
    return out;
  }

  function isVideoFinished(p) {
    if (!p) return false;
    if (p.videoFinishedStatus === true) return true;
    if (Number(p.studyStatus) === 2) return true;
    if (Number(p.studyProgress) >= 100) return true;
    return false;
  }

  function isProjectFullyFinished(p) {
    if (!p) return false;
    if (!isVideoFinished(p) && p.listSource !== "completed" && !p.projectFinishedStatus) return false;
    if (p.examRequired && !p.examDone) return false;
    if (String(p.examLabel || "").includes("\u5f85\u8003\u8bd5")) return false;
    if (p._examEnriched) {
      return !!(p.examDone || String(p.examLabel || "").includes("\u5df2\u901a\u8fc7") || p.examLabel === "\u65e0\u8bd5\u5377" || p.examLabel === "\u65e0\u5f85\u8003");
    }
    if (isVideoFinished(p) || p.listSource === "completed") return false;
    return false;
  }

  function isProjectSelectable(p) {
    return p && !isProjectFullyFinished(p);
  }

  function projectListBadge(p) {
    if (isProjectFullyFinished(p)) {
      return `<span class="hbzj-badge hbzj-badge-done">\u5df2\u5b8c\u6210</span>`;
    }
    if (
      isVideoFinished(p) &&
      (p.examRequired || String(p.examLabel || "").includes("\u5f85\u8003\u8bd5"))
    ) {
      return `<span class="hbzj-badge hbzj-badge-exam">\u5f85\u8003\u8bd5</span>`;
    }
    return `<span class="hbzj-badge hbzj-badge-learn">\u6b63\u5728\u5b66</span>`;
  }

  function syncProjectFinishedFlags(p) {
    if (!p) return;
    if (isVideoFinished(p)) {
      p.videoFinishedStatus = true;
      if (!String(p.studyLabel || "").includes("\u5b66\u4e60\u4e2d") && p.studyLabel !== "\u672a\u5b66\u4e60") {
        p.studyLabel = "\u5df2\u5b66\u5b8c";
      } else if (Number(p.studyProgress) >= 100) {
        p.studyLabel = "\u5df2\u5b66\u5b8c";
      }
    }
    if (isProjectFullyFinished(p)) {
      p.listSource = "completed";
      p.sourceLabel = "\u5df2\u5b8c\u6210";
      p.studyLabel = "\u5df2\u5b8c\u6210";
      p.projectFinishedStatus = true;
    } else if (isVideoFinished(p) && (p.examRequired || String(p.examLabel || "").includes("\u5f85\u8003\u8bd5"))) {
      p.projectFinishedStatus = false;
      p.sourceLabel = "\u5f85\u8003\u8bd5";
      p.listSource = "learning";
    }
  }

  function classifyStudyRow(row) {
    const status = Number(row?.studyStatus);
    const speed = Number(
      row?.studySpeed ?? row?.studyProgress ?? row?.learnSpeed ?? row?.percent ?? row?.classEntity?.studySpeed ?? 0
    );
    if (status === 2 || speed >= 100) return "completed";
    return "learning";
  }

  function mapProjectRow(row) {
    const entity = row?.classEntity && typeof row.classEntity === "object" ? row.classEntity : {};
    const info = row?.classInfo && typeof row.classInfo === "object" ? row.classInfo : {};
    const src = classifyStudyRow(row);
    const progress = Number(
      row.studySpeed ?? row.studyProgress ?? row.learnSpeed ?? row.percent ?? entity.studySpeed ?? info.studySpeed ?? 0
    );
    const myClassId = String(row.myClassId || row.id || entity.myClassId || info.myClassId || "");
    const classId = String(row.classId || entity.classId || info.classId || myClassId);
    const finishedHint = src === "completed" || progress >= 100;
    const name =
      row.title ||
      row.className ||
      entity.className ||
      info.className ||
      row.myClassName ||
      row.name ||
      "";
    return {
      projectId: myClassId,
      projectName: name || `\u73ed\u7ea7${myClassId}`,
      creditType:
        row.subjectName ||
        row.classTypeName ||
        row.creditType ||
        entity.subjectName ||
        info.subjectName ||
        "",
      projectCredit:
        row.classHour ?? row.credit ?? row.projectCredit ?? row.period ?? entity.classHour ?? info.classHour,
      studyProgress: progress,
      studyStatus: Number(row.studyStatus || 0),
      studyTime: Number(row.studyTime || 0),
      classId,
      listSource: src,
      sourceLabel: src === "completed" ? "\u5df2\u5b8c\u6210" : "\u6b63\u5728\u5b66",
      studyLabel: finishedHint
        ? "\u5df2\u5b66\u5b8c"
        : progress > 0
          ? `\u5b66\u4e60\u4e2d ${Number(progress.toFixed(1))}%`
          : "\u672a\u5b66\u4e60",
      examId: "",
      examName: "",
      examDone: false,
      examRequired: false,
      examScore: null,
      examPassLine: 60,
      examLabel: "\u8003\u8bd5\u5f85\u67e5",
      videoFinishedStatus: finishedHint,
      projectFinishedStatus: false,
      raw: row,
    };
  }

  async function ensureUserProfile(force) {
    if (!force && state.userProfile?.accountId) return state.userProfile;
    const cms = readCmsAccountInfo();
    if (cms?.accountId) {
      rememberAccountId(cms.accountId);
      state.userProfile = normalizeUserProfile(cms);
      if (!force) return state.userProfile;
    }
    try {
      const j = await apiGet(PATH_ACCOUNT_INFO);
      const info = j.data?.data || j.data || null;
      if (info?.accountId) rememberAccountId(info.accountId);
      state.userProfile = normalizeUserProfile(info || cms || {});
      if (state.userProfile?.accountId) {
        writeAuthCache({ accountId: state.userProfile.accountId });
      }
    } catch (e) {
      if (cms) state.userProfile = normalizeUserProfile(cms);
      else throw e;
    }
    return state.userProfile;
  }

  async function fetchYears() {
    try {
      let j;
      try {
        j = await apiGet(PATH_STUDY_YEARS);
      } catch (_) {
        j = await apiGet(PATH_CLASS_YEARS);
      }
      const years = extractYears(j.data);
      if (years.length) {
        state.yearOptions = years;
        if (!state.yearOptions.includes(Number(state.studyYear))) {
          state.studyYear = state.yearOptions[0];
          pageStorage().setItem(YEAR_KEY, String(state.studyYear));
        }
      }
    } catch (e) {
      trace(`years: ${e.message || e}`);
    }
  }

  async function fetchStudyListPage(pageNo, studyStatus) {
    const qs = toQuery({
      searchYear: state.studyYear || "",
      studyStatus: studyStatus == null ? "" : studyStatus,
      mylearnTaskId: "",
      attribute: "",
      orderBy: 2,
      mathRandom: Math.random(),
      pageNo: pageNo || 1,
      subject: "",
      classType: 0,
      pageSize: 50,
    });
    const j = await apiGet(`${PATH_STUDY_LIST}?${qs}`);
    return pickList(j.data);
  }

  async function fetchAllPanelProjects() {
    const allRows = [];
    try {
      const rows = await fetchStudyListPage(1, "");
      allRows.push(...rows);
    } catch (e) {
      trace(`\u5b66\u4e60\u5217\u8868\u5931\u8d25: ${e.message || e}`);
      try {
        const a = await fetchStudyListPage(1, "");
        allRows.push(...a);
      } catch (_) {}
    }
    if (!allRows.length) {
      try {
        const learning = await fetchStudyListPage(1, 1);
        const done = await fetchStudyListPage(1, 2);
        allRows.push(...learning, ...done);
      } catch (_) {}
    }

    const mapped = allRows.map((row) => mapProjectRow(row));
    const learning = mapped.filter((p) => p.listSource === "learning");
    const completed = mapped.filter((p) => p.listSource === "completed");
    state._capturedLists = { learning, completed };
    const byId = new Map();
    for (const p of learning) byId.set(p.projectId, p);
    for (const p of completed) byId.set(p.projectId, p);
    const merged = Array.from(byId.values());
    for (const p of merged) syncProjectFinishedFlags(p);
    return merged;
  }

  async function fetchClassDetail(myClassId) {
    const j = await apiGet(`${PATH_MY_CLASS}?${toQuery({ myClassId })}`);
    const raw = j.data?.data || j.data || null;
    if (!raw || typeof raw !== "object") return raw;
    if (raw.classInfo && typeof raw.classInfo === "object") {
      if (!raw.classId && raw.classInfo.classId) raw.classId = raw.classInfo.classId;
      if (!raw.className && raw.classInfo.className) raw.className = raw.classInfo.className;
    }
    return raw;
  }

  async function fetchClassBooks(myClassId) {
    const j = await apiGet(`${PATH_MY_CLASS}?${toQuery({ myClassId })}`);
    const raw = j.data?.data || j.data || null;
    if (!raw || typeof raw !== "object") return { courseData: [] };
    if (Array.isArray(raw.myClassCourseRPList) && raw.myClassCourseRPList.length) {
      return raw;
    }
    try {
      const bj = await apiGet(`${PATH_MY_CLASS_BOOKS}?${toQuery({ myClassId })}`);
      const bro = bj.data?.data != null ? bj.data.data : bj.data;
      if (Array.isArray(bro)) return { courseData: bro };
      if (bro && typeof bro === "object") return bro;
    } catch (_) {}
    return raw;
  }

  async function enrichProjectNames(projects, limit) {
    const list = (projects || []).slice(0, Math.max(1, limit || 20));
    for (const p of list) {
      if (!p || !p.projectId) continue;
      if (p.projectName && !/^\u73ed\u7ea7[0-9a-f-]{30,}$/i.test(p.projectName)) continue;
      try {
        const detail = await fetchClassDetail(p.projectId);
        const name =
          detail?.classInfo?.className ||
          detail?.className ||
          detail?.classInfo?.title ||
          "";
        if (name) {
          p.projectName = name;
          if (detail?.classId) p.classId = String(detail.classId);
        }
      } catch (_) {}
    }
  }

  function buildWatchInfo(video, playduration, pid, timestamp) {
    const vid = videoSourceOf(video);
    return JSON.stringify({
      vid,
      pid: pid || `BAIJIAYUN_${uuidv4()}`,
      playduration: Math.max(0, Math.floor(Number(playduration) || 0)),
      timestamp: Number(timestamp) > 0 ? Math.floor(Number(timestamp)) : Date.now(),
    });
  }

  function formatVideoRate(rate) {
    const n = Number(rate);
    if (!Number.isFinite(n)) return "0";
    if (n >= 100) return "100";
    return n.toFixed(1);
  }

  function initialPlaySeconds(video, total) {
    const watched = Math.floor(Number(video?.watchTimeLength) || 0);
    if (watched > 0) return Math.min(watched, Math.max(0, total - 1));
    const speed = Number(video?.learnSpeed || 0);
    if (speed > 0) return Math.min(Math.floor((total * speed) / 100), Math.max(0, total - 1));
    return 1;
  }

  function videoInnerResult(un) {
    const attr = un?.data;
    if (!attr) return null;
    if (attr.data && typeof attr.data === "object") return attr.data;
    return attr;
  }

  async function _psw(myClassId, video, watchInfo) {
    return apiPostForm(PATH_VIDEO_SV, {
      myClassId,
      myClassCourseId: video.myClassCourseId,
      myClassCourseVideoId: video.myClassCourseVideoId,
      watchInfo,
    });
  }

  async function _pcw(myClassId, video, watchInfo) {
    return apiPostForm(PATH_VIDEO_CV, {
      myClassId,
      myClassCourseId: video.myClassCourseId,
      myClassCourseVideoId: video.myClassCourseVideoId,
      watchInfo,
      isCalculateclassHourFlag: true,
    });
  }

  async function postUpdateLastVideo(classId, myClassId, video) {
    try {
      await apiPostForm(PATH_UPDATE_LAST_VIDEO, {
        classId: classId || myClassId,
        myClassId,
        myClassCourseId: video.myClassCourseId,
        myClassCourseVideoId: video.myClassCourseVideoId,
      });
    } catch (e) {
      trace(`update-last-video: ${e.message || e}`);
    }
  }

  function paperNeedsExam(row) {
    if (!row) return false;
    if (Number(row.isPass) === 1 || row.passFlag === true || row.pass === true) return false;
    const pass = Number(row.passScore ?? row.passMark ?? row.passLine ?? 60);
    const score = Number(row.score ?? row.myHighestScore ?? row.highestScore ?? NaN);
    if (Number.isFinite(score) && score >= pass) return false;
    const studySpeed = Number(row.studySpeed ?? 0);
    if (studySpeed < 100) return false;
    const statusName = String(row.statusName || "");
    if (statusName.includes("\u672a\u5b8c\u6210")) return false;
    if (statusName.includes("\u5df2\u901a\u8fc7")) return false;
    return true;
  }

  function paperUnfinished(row) {
    return paperNeedsExam(row);
  }

  async function fetchPaperList(cmsType) {
    const qs = toQuery({ pageNo: 1, pageSize: 20, cmsType: cmsType == null ? 9 : cmsType });
    const j = await apiGet(`${PATH_EXAM_LIST}?${qs}`);
    return pickList(j.data);
  }

  async function checkExamStatus(myExamId) {
    if (!myExamId) return;
    try {
      await apiGet(`${PATH_EXAM_CHECK_STATUS}?${toQuery({ myExamId })}`);
    } catch (e) {
      trace(`check-my-exam-status\uff1a${e.message || e}`);
    }
  }

  async function saveExamRecord(paperRow) {
    const qs = toQuery({
      myExamId: paperRow.myExamId,
      isMakeUp: paperRow.isMakeUpStatus ?? paperRow.isMakeUp ?? 0,
      examType: paperRow.examType ?? paperRow.type ?? 0,
      paperId: paperRow.paperId,
      paperSource: paperRow.paperSource ?? 1,
    });
    const j = await apiGet(`${PATH_EXAM_SAVE_RECORD}?${qs}`);
    const rid = j.data?.data ?? j.data;
    return rid ? String(rid) : "";
  }

  async function startPaper(paperId, myExamRecordId) {
    const qs = toQuery({
      paperId: paperId || "",
      myExamRecordId: myExamRecordId || "",
    });
    const j = await apiGet(`${PATH_EXAM_START}?${qs}`);
    return j.data?.data || j.data || null;
  }

  function isStandardOption(opt) {
    if (!opt) return false;
    const v = opt.standardAnswer;
    return v === true || v === 1 || v === "1" || Number(opt.isStandardAnswer) === 1 || opt.isCorrect === true;
  }

  function buildExamAnswerList(paperDetail) {
    const stems = paperDetail?.questionStemRPS || paperDetail?.listQuestionStemRP || [];
    if (!Array.isArray(stems) || !stems.length) return null;
    const answerList = [];
    for (const stem of stems) {
      const questions = stem.listPaperQuestionRP || stem.paperQuestionRPS || [];
      if (!Array.isArray(questions) || !questions.length) return null;
      for (const q of questions) {
        const qid = q.paperQuestionId || q.questionId || q.id;
        if (!qid) return null;
        const opts = q.paperOptionRPS || q.paperOptionList || q.options || [];
        const std = (Array.isArray(opts) ? opts : []).filter(isStandardOption);
        if (!std.length) return null;
        answerList.push({
          paperQuestionId: String(qid),
          answers: std.map((o) => ({ paperOptionId: String(o.paperOptionId || o.id) })),
        });
      }
    }
    return answerList.length ? answerList : null;
  }

  async function submitPaper(payload) {
    const body = {
      myExamId: payload.myExamId,
      isMakeUp: payload.isMakeUp != null ? payload.isMakeUp : false,
      myExamRecordId: payload.myExamRecordId,
      answerList:
        typeof payload.answerList === "string"
          ? payload.answerList
          : JSON.stringify(payload.answerList || []),
    };
    try {
      return await apiPostForm(PATH_EXAM_SUBMIT, body);
    } catch (_) {
      return await apiPostJson(PATH_EXAM_SUBMIT, body);
    }
  }

  async function _roe(paperRow) {
    const myExamId = paperRow.myExamId;
    const paperId = paperRow.paperId;
    const name = paperRow.paperName || paperRow.className || paperId;
    if (!myExamId || !paperId) throw new Error("\u7f3a\u5c11 myExamId \u6216 paperId");

    await checkExamStatus(myExamId);
    const myExamRecordId = await saveExamRecord(paperRow);
    if (!myExamRecordId) throw new Error("save-my-exam-record \u672a\u8fd4\u56de recordId");

    const detail = await startPaper(paperId, myExamRecordId);
    if (!detail) throw new Error("start-do-paper \u65e0\u9898\u76ee");

    const answerList = buildExamAnswerList(detail);
    if (!answerList) throw new Error("\u9898\u76ee\u65e0 standardAnswer\uff0c\u5df2\u8df3\u8fc7");

    await submitPaper({
      myExamId,
      isMakeUp: paperRow.isMakeUpStatus ?? paperRow.isMakeUp ?? false,
      myExamRecordId,
      answerList,
    });
    log(`\u8003\u8bd5\uff1a${name} \u5df2\u63d0\u4ea4`);
    return true;
  }

  async function _tea(project) {
    if (!(await _ate())) return false;
    let papers = [];
    try {
      papers = await fetchPaperList(9);
    } catch (e) {
      trace(`\u8bd5\u5377\u5217\u8868(cmsType=9)\uff1a${e.message || e}`);
    }
    if (!papers.length) {
      try {
        papers = await fetchPaperList(1);
      } catch (e) {
        trace(`\u8bd5\u5377\u5217\u8868(cmsType=1)\uff1a${e.message || e}`);
      }
    }

    let pending = papers.filter(paperNeedsExam);
    if (project?.projectId) {
      const mine = pending.filter((p) => String(p.myClassId || "") === String(project.projectId));
      if (mine.length) pending = mine;
    }

    if (!pending.length) {
      if (project) {
        const st = examLabelForProject(project, papers);
        project.examRequired = st.examRequired;
        project.examDone = st.examDone;
        project.examLabel = st.examLabel;
        project.examScore = st.examScore;
        project._examEnriched = true;
        syncProjectFinishedFlags(project);
      }
      return false;
    }
    if (project) {
      project.examRequired = true;
      project.examLabel = `\u5f85\u8003\u8bd5 ${pending.length} \u4efd`;
    }

    let did = false;
    for (const paper of pending.slice(0, 3)) {
      if (!state.enabled) break;
      try {
        await _roe(paper);
        did = true;
        if (project) {
          project.examDone = true;
          project.examRequired = false;
          project.examLabel = "\u5df2\u63d0\u4ea4\uff0c\u5237\u65b0\u6210\u7ee9\u4e2d…";
          project._examEnriched = false;
        }
        await sleep(1500);
        try {
          let papers2 = await fetchPaperList(9);
          if (!papers2.length) papers2 = await fetchPaperList(1);
          if (project) {
            const st = examLabelForProject(project, papers2);
            project.examRequired = st.examRequired;
            project.examDone = st.examDone;
            project.examLabel = st.examLabel;
            project.examScore = st.examScore;
            project._examEnriched = true;
            syncProjectFinishedFlags(project);
            updatePanel();
          }
        } catch (_) {
          if (project) {
            project.examLabel = "\u5df2\u63d0\u4ea4";
            project.examDone = true;
            project.examRequired = false;
          }
        }
        await sleep(800);
      } catch (e) {
        const msg = e.message || e;
        log(`\u8003\u8bd5\u300c${paper.paperName || paper.className || paper.paperId}\u300d\u5931\u8d25\uff1a${msg}`);
        if (project && String(msg).includes("standardAnswer")) {
          project.examLabel = "\u7f3a\u6807\u51c6\u7b54\u6848\uff0c\u5df2\u8df3\u8fc7";
        }
        trace(`\u8003\u8bd5\u5931\u8d25\uff1a${msg}`);
      }
    }
    return did;
  }

  async function _sw(project, video) {
    const myClassId = project.projectId;
    const name = videoNameOf(video);
    const total = videoTotalSeconds(video);
    const goalSec = Math.min(total, Math.ceil(total * EFFICIENCY_JUMP_RATIO));
    const vid = videoSourceOf(video);
    if (!vid) {
      log(`\u89c6\u9891\u300c${name}\u300d\u65e0\u89c6\u9891\u6e90\uff0c\u8df3\u8fc7`);
      return;
    }
    if (isEbookVideo(video)) {
      log(`\u300c${name}\u300d\u4e3a\u7535\u5b50\u4e66\uff0c\u8df3\u8fc7\u8ba1\u65f6`);
      return;
    }

    state.lastUserAction = name;
    updatePanel();

    const pid = `BAIJIAYUN_${uuidv4()}`;
    let playduration = initialPlaySeconds(video, total);
    let rate = Number(video.learnSpeed || 0);
    let lastReportMs = Date.now();

    await postUpdateLastVideo(project.classId || myClassId, myClassId, video);

    let svOk = false;
    try {
      const watchInfo0 = buildWatchInfo(video, playduration, pid, lastReportMs);
      const svRes = await _psw(myClassId, video, watchInfo0);
      const inner = videoInnerResult(svRes);
      if (inner && String(inner.respCode) !== "SUCCESS" && inner.respCode != null) {
        throw new Error(inner.respDesc || inner.respCode || "sv_fail");
      }
      svOk = true;
      if (inner?.videoLearnRate != null) rate = Number(inner.videoLearnRate);
      video.learnSpeed = rate;
      _ppp(myClassId, video.myClassCourseVideoId, name, rate, total);
      updatePanel();
      log(formatStudyProgressLog(name, rate, total));
      _lwh();
    } catch (e) {
      trace(`sv\uff1a${e.message || e}`);
      await sleep(2000);
    }

    if (!svOk) {
      log(`\u8df3\u8fc7\uff1a${name}`);
      return;
    }

    await sleep(SV_BEFORE_CV_MS);

    const needSteps = Math.ceil(Math.max(0, goalSec - playduration) / CV_STEP_SECONDS);
    const maxRounds = Math.min(WATCH_MAX_ROUNDS, needSteps + 2);

    for (let round = 0; round < maxRounds && state.enabled; round++) {
      if (rate >= 100) break;
      if (playduration >= goalSec) break;

      const now = Date.now();
      const elapsedSec = Math.max(1, Math.floor((now - lastReportMs) / 1000));
      const step = Math.min(CV_STEP_SECONDS, elapsedSec, Math.max(1, goalSec - playduration));
      playduration = Math.min(goalSec, playduration + step);
      lastReportMs = now;

      const watchInfo = buildWatchInfo(video, playduration, pid, lastReportMs);
      let cvOk = false;
      try {
        const cvRes = await _pcw(myClassId, video, watchInfo);
        const inner = videoInnerResult(cvRes);
        if (cvRes.msg && String(cvRes.msg).includes("today class hour limit")) {
          log(`\u4eca\u65e5\u5b66\u65f6\u5df2\u8fbe\u4e0a\u9650`);
          break;
        }
        if (inner && String(inner.respCode) === "INVALID_PARAM") {
          trace(`cv\uff1a${inner.respDesc || inner.respCode}`);
          playduration = Math.max(1, playduration - step);
          await sleep(CV_INTERVAL_MS);
          continue;
        }
        if (inner && String(inner.respCode) === "SUCCESS") {
          if (inner.videoLearnRate != null) rate = Number(inner.videoLearnRate);
          video.learnSpeed = rate;
          _ppp(myClassId, video.myClassCourseVideoId, name, rate, total);
          updatePanel();
          log(formatStudyProgressLog(name, rate, total));
          if (rate >= 100 || playduration >= goalSec) break;
        } else if (inner && inner.respCode != null) {
          throw new Error(inner.respDesc || inner.respCode);
        }
      } catch (e) {
        trace(`cv\uff1a${e.message || e}`);
        playduration = Math.max(1, playduration - step);
        await sleep(CV_INTERVAL_MS);
        continue;
      }

      if (rate >= 100 || playduration >= goalSec) break;
      await sleep(CV_INTERVAL_MS);
    }

    video.learnSpeed = Math.max(Number(video.learnSpeed || 0), rate);
    if (rate >= 100 || playduration >= goalSec) video.learnSpeed = 100;
    _ppp(myClassId, video.myClassCourseVideoId, name, video.learnSpeed, total);
    log(formatStudyProgressLog(name, video.learnSpeed, total).replace(/^\u5b66\u4e60\uff1a/, "\u5b8c\u6210\uff1a"));
  }

  async function _sp(project) {
    const projectId = project.projectId;
    state.lastUserAction = project.projectName;
    updatePanel();
    log(`\u5f00\u59cb\uff1a${project.projectName}`);

    let detail = null;
    try {
      detail = await fetchClassDetail(projectId);
      if (detail?.classId) project.classId = String(detail.classId);
      if (detail?.studyStatus != null) project.studyStatus = Number(detail.studyStatus);
      if (detail?.studySpeed != null) project.studyProgress = Number(detail.studySpeed);
    } catch (e) {
      trace(`\u73ed\u7ea7\u8be6\u60c5\uff1a${e.message || e}`);
    }

    let books = null;
    try {
      books = await fetchClassBooks(projectId);
    } catch (e) {
      throw new Error(`\u8bfe\u4ef6\u5217\u8868\u5931\u8d25\uff1a${e.message || e}`);
    }
    const videos = flattenVideosFromBooks(books, projectId).filter((v) => !isEbookVideo(v));
    const pending = videos.filter((v) => !isVideoDone(v));

    if (pending.length) {
      if (!(await _acp())) {
        state.enabled = false;
        return;
      }
      for (const video of pending) {
        if (!state.enabled) return;
        if (!(await _acp())) {
          state.enabled = false;
          return;
        }
        if (!(await _rcq())) {
          state.enabled = false;
          return;
        }
        await _sw(project, video);
        updateCloudPanelUI();
      }
    } else {
      log(`${project.projectName} \u89c6\u9891\u5df2\u5168\u90e8\u8fbe\u6807`);
    }

    try {
      const books2 = await fetchClassBooks(projectId);
      const vids2 = flattenVideosFromBooks(books2, projectId).filter((v) => !isEbookVideo(v));
      const allDone = vids2.length ? vids2.every(isVideoDone) : pending.length === 0;
      project.videoFinishedStatus = allDone;
      if (allDone) {
        project.studyProgress = Math.max(Number(project.studyProgress || 0), 100);
      }
    } catch (_) {}

    if (state.enabled) {
      try {
        for (let i = 0; i < EXAM_PASS_RETRY && state.enabled; i++) {
          const did = await _tea(project);
          if (!did) break;
          await sleep(800);
        }
      } catch (e) {
        trace(`\u8003\u8bd5\u6d41\u7a0b\uff1a${e.message || e}`);
      }
    }

    if (project.videoFinishedStatus && (!project.examRequired || project.examDone)) {
      project.projectFinishedStatus = true;
      project.listSource = "completed";
    }
    syncProjectFinishedFlags(project);
    await _rcp();
    updatePanel();
  }

  async function courseHasPendingWork(project) {
    try {
      const books = await fetchClassBooks(project.projectId);
      const videos = flattenVideosFromBooks(books, project.projectId).filter((v) => !isEbookVideo(v));
      if (videos.some((v) => !isVideoDone(v))) return true;
      try {
        const papers = await fetchPaperList(9);
        if (papers.some(paperUnfinished)) return true;
      } catch (_) {}
      return false;
    } catch (_) {
      return true;
    }
  }

  async function _rse() {
    if (state.engineRunning) return;
    state.engineRunning = true;
    try {
      while (state.enabled) {
        const queue = loadQueue().filter(Boolean);
        if (!queue.length) {
          state.enabled = false;
          break;
        }
        let progressed = false;
        for (const projectId of queue) {
          if (!state.enabled) break;
          const project = state.panelProjects.find((p) => p.projectId === projectId);
          if (!project) continue;
          if (isProjectFullyFinished(project)) continue;
          const hasWork = await courseHasPendingWork(project);
          if (!hasWork) {
            project.projectFinishedStatus = true;
            syncProjectFinishedFlags(project);
            continue;
          }
          if (!(await _acp())) {
            state.enabled = false;
            break;
          }
          progressed = true;
          try {
            await _sp(project);
          } catch (e) {
            trace(`${project.projectName} \u5f02\u5e38\uff1a${e.message || e}`);
            await sleep(3000);
          }
        }
        if (!progressed) {
          state.enabled = false;
          break;
        }
        await sleep(ENGINE_TICK_MS);
      }
    } finally {
      state.engineRunning = false;
      state.lastUserAction = "";
      updatePanel();
      if (!state.enabled) log("\u5df2\u505c\u6b62");
    }
  }

  function readPanelPos() {
    return readJson(PANEL_POS_KEY, null);
  }

  function writePanelPos(pos) {
    writeJson(PANEL_POS_KEY, pos);
  }

  function readPanelCollapsed() {
    return pageStorage().getItem(PANEL_COLLAPSED_KEY) === "1";
  }

  function writePanelCollapsed(v) {
    pageStorage().setItem(PANEL_COLLAPSED_KEY, v ? "1" : "0");
  }

  function applyPanelCollapsed(panel, collapsed) {
    const body = panel.querySelector("#hbzj-panel-body");
    const footer = panel.querySelector("#hbzj-panel-footer");
    const extra = panel.querySelector(".hbzj-footer-extra");
    const btnMin = panel.querySelector("#hbzj-btn-min");
    const btnMax = panel.querySelector("#hbzj-btn-max");
    if (collapsed) {
      if (body) body.style.display = "none";
      if (footer) footer.style.display = "none";
      if (extra) extra.style.display = "none";
      if (btnMin) btnMin.style.display = "none";
      if (btnMax) btnMax.style.display = "";
    } else {
      if (body) body.style.display = "";
      if (footer) footer.style.display = "";
      if (extra) extra.style.display = "";
      if (btnMin) btnMin.style.display = "";
      if (btnMax) btnMax.style.display = "none";
    }
  }

  function enablePanelDrag(panel) {
    const hd = panel.querySelector("#hbzj-panel-header");
    if (!hd) return;
    let ox = 0;
    let oy = 0;
    let dragging = false;
    hd.addEventListener("mousedown", (e) => {
      if (e.target.closest("button")) return;
      dragging = true;
      const rect = panel.getBoundingClientRect();
      ox = e.clientX - rect.left;
      oy = e.clientY - rect.top;
      e.preventDefault();
    });
    window.addEventListener("mousemove", (e) => {
      if (!dragging) return;
      const left = Math.max(0, e.clientX - ox);
      const top = Math.max(0, e.clientY - oy);
      panel.style.left = `${left}px`;
      panel.style.top = `${top}px`;
      panel.style.right = "auto";
    });
    window.addEventListener("mouseup", () => {
      if (!dragging) return;
      dragging = false;
      writePanelPos({
        left: parseInt(panel.style.left || "0", 10),
        top: parseInt(panel.style.top || "0", 10),
      });
    });
  }

  function switchPanelTab(tab) {
    document.querySelectorAll("#hbzj-auto-panel .hbzj-tab-btn").forEach((b) => {
      b.classList.toggle("active", b.dataset.tab === tab);
    });
    document.querySelectorAll("#hbzj-auto-panel .hbzj-pane").forEach((p) => {
      p.classList.toggle("active", p.dataset.pane === tab);
    });
    if (tab === "chapter" && loadQueue().length && !state.chapterPreview.length && !state.chapterPreviewLoading) {
      state.chapterPreviewLoading = true;
      renderChapterPreview();
      void _rcp()
        .catch((e) => trace(`\u7ae0\u8282\u9884\u89c8\u5931\u8d25\uff1a${e.message || e}`))
        .finally(() => {
          state.chapterPreviewLoading = false;
          updatePanel();
        });
    }
  }

  function updateCloudPanelUI() {
    const tierEl = document.getElementById("hbzj-cloud-tier");
    const freeEl = document.getElementById("hbzj-cloud-free");
    const freeLabelEl = document.getElementById("hbzj-cloud-free-label");
    const freeRow = document.getElementById("hbzj-cloud-free-row");
    const tokenInput = document.getElementById("hbzj-cloud-token");
    if (tokenInput) tokenInput.disabled = false;
    if (tierEl) {
      tierEl.textContent = formatCloudTierText(state.cloudTier);
      tierEl.style.color =
        state.cloudRevoked || String(state.cloudTier).toLowerCase() === "revoked" ? "#dc2626" : "#0f172a";
    }
    if (state.cloudRevoked) {
      if (freeRow) freeRow.style.display = "none";
    } else if (isCloudProTier()) {
      if (freeRow) freeRow.style.display = "";
      if (freeLabelEl) freeLabelEl.textContent = "\u6709\u6548\u671f";
      if (freeEl) freeEl.textContent = formatExpireText(state.cloudProExpireAt || state.cloudLeaseExp);
    } else {
      if (freeRow) freeRow.style.display = "none";
    }
    if (tokenInput && tokenInput !== document.activeElement) tokenInput.value = state.cloudToken || "";
  }

  function recomputeQueueStats() {
    const q = loadQueue();
    let total = 0;
    let done = 0;
    let allDone = 0;
    for (const id of q) {
      const p = state.panelProjects.find((x) => x.projectId === id);
      if (!p) continue;
      const preview = state.chapterPreview.filter((c) => c.projectId === id);
      if (preview.length) {
        total += preview.length;
        done += preview.filter((c) => c.done).length;
      } else {
        total += 1;
        if (isProjectFullyFinished(p)) done += 1;
      }
      if (isProjectFullyFinished(p)) allDone += 1;
    }
    state.queueWareTotal = total;
    state.queueWareDone = done;
    return { total, done, allDone, selected: q.length };
  }

  function updatePanel() {
    const status = document.getElementById("hbzj-auto-status");
    if (status) {
      status.textContent = state.enabled ? `\u8fd0\u884c\u4e2d · ${CV_INTERVAL_MINUTES}\u5206\u949f/\u6b21` : "\u5df2\u505c\u6b62";
      status.style.color = state.enabled ? "#15803d" : "#64748b";
    }
    const stats = recomputeQueueStats();
    const doneEl = document.getElementById("hbzj-queue-done");
    const totalEl = document.getElementById("hbzj-queue-total");
    const examEl = document.getElementById("hbzj-queue-exam");
    const pctEl = document.getElementById("hbzj-queue-percent");
    const bar = document.getElementById("hbzj-queue-progress");
    const pct = stats.total ? Math.round((stats.done / stats.total) * 100) : 0;
    if (doneEl) doneEl.textContent = String(stats.done);
    if (totalEl) totalEl.textContent = String(stats.total);
    if (examEl) examEl.textContent = stats.selected ? `${stats.allDone}/${stats.selected}` : "—";
    if (pctEl) pctEl.textContent = `${pct}%`;
    if (bar) bar.style.width = `${pct}%`;

    const userEl = document.getElementById("hbzj-current-user");
    if (userEl) {
      const u = state.userProfile;
      const name = String(u?.name || "").trim();
      userEl.textContent = name || (getAccountId() ? "\u5df2\u767b\u5f55" : "—");
    }
    const courseEl = document.getElementById("hbzj-current-course");
    const chapterEl = document.getElementById("hbzj-current-chapter");
    const taskEl = document.getElementById("hbzj-current-task");
    if (taskEl) taskEl.textContent = state.lastUserAction || "\u52fe\u9009\u73ed\u7ea7\u540e\u70b9\u300c\u5f00\u59cb\u300d";
    if (courseEl && !state.enabled) courseEl.textContent = "\u65e0";
    if (chapterEl && !state.enabled) chapterEl.textContent = "\u65e0";

    const startBtn = document.getElementById("hbzj-start");
    const stopBtn = document.getElementById("hbzj-stop");
    if (startBtn) startBtn.disabled = !!state.enabled;
    if (stopBtn) {
      stopBtn.disabled = !state.enabled;
      stopBtn.classList.toggle("hbzj-btn-off", !state.enabled);
    }

    const qText = document.getElementById("hbzj-queue-text");
    if (qText) qText.textContent = stats.selected ? `\u5df2\u9009 ${stats.selected} \u9879` : "\u672a\u9009\u62e9";

    renderCourseList();
    renderChapterPreview();
    updateCloudPanelUI();
    renderPanelNotice();
  }

  function renderCourseList() {
    const box = document.getElementById("hbzj-course-list");
    if (!box) return;
    if (state.panelRefreshing) {
      box.innerHTML = `<div class="hbzj-empty-state">\u52a0\u8f7d\u4e2d…</div>`;
      return;
    }
    const q = new Set(loadQueue().map(String));
    if (!state.panelProjects.length) {
      const ok = hasPlatformAuth();
      box.innerHTML = `<div class="hbzj-empty-state">${
        ok
          ? "\u6682\u65e0\u73ed\u7ea7\u3002\u8bf7\u786e\u8ba4\u5e74\u5ea6\u7b5b\u9009\uff0c\u6216\u5230\u5b98\u7f51\u300c\u6211\u7684\u5b66\u4e60\u300d\u70b9\u4e00\u4e0b\u540e\u518d\u5237\u65b0\u3002"
          : "\u8bf7\u5148\u767b\u5f55\u5b98\u7f51\uff0c\u6253\u5f00\u300c\u6211\u7684\u5b66\u4e60\u300d\uff0c\u518d\u70b9\u5237\u65b0\u3002"
      }</div>`;
      return;
    }
    box.innerHTML = state.panelProjects
      .map((p) => {
        const checked = q.has(String(p.projectId)) ? "checked" : "";
        const disabled = isProjectFullyFinished(p) ? "disabled" : "";
        const badge = projectListBadge(p);
        return `<label class="hbzj-course-item">
          <input type="checkbox" data-pid="${escHtml(p.projectId)}" ${checked} ${disabled}/>
          <div class="hbzj-course-main">
            <div class="hbzj-course-name">${badge}${escHtml(p.projectName)}</div>
            <div class="hbzj-course-meta">${escHtml(p.creditType || "")} · ${escHtml(String(p.projectCredit ?? ""))}\u5b66\u65f6 · ${escHtml(p.studyLabel || "")} · \u8003\u8bd5 ${escHtml(p.examLabel)}</div>
          </div>
        </label>`;
      })
      .join("");
    box.querySelectorAll("input[type=checkbox]").forEach((inp) => {
      inp.addEventListener("change", () => {
        const id = String(inp.getAttribute("data-pid") || "");
        let list = loadQueue().map(String);
        if (inp.checked) {
          if (!list.includes(id)) list.push(id);
        } else {
          list = list.filter((x) => x !== id);
        }
        saveQueue(list);
        state.chapterPreviewLoading = true;
        renderChapterPreview();
        void _rcp()
          .catch((e) => trace(`\u7ae0\u8282\u9884\u89c8\u5931\u8d25\uff1a${e.message || e}`))
          .finally(() => {
            state.chapterPreviewLoading = false;
            updatePanel();
          });
      });
    });
  }

  function renderChapterPreview() {
    const box = document.getElementById("hbzj-chapter-preview");
    if (!box) return;
    const q = loadQueue().map(String).filter(Boolean);
    if (!q.length) {
      box.innerHTML = `<div class="hbzj-empty-state">\u8bf7\u52fe\u9009\u73ed\u7ea7</div>`;
      return;
    }
    if (state.chapterPreviewLoading && !state.chapterPreview.length) {
      box.innerHTML = `<div class="hbzj-empty-state">\u6b63\u5728\u52a0\u8f7d\u89c6\u9891\u7ae0\u8282…</div>`;
      return;
    }
    if (!state.chapterPreview.length) {
      box.innerHTML = `<div class="hbzj-empty-state">\u5df2\u52fe\u9009 ${q.length} \u9879\uff0c\u4f46\u672a\u8bfb\u5230\u89c6\u9891\u3002\u8bf7\u70b9\u300c\u5237\u65b0\u300d\u540e\u91cd\u8bd5\u3002</div>`;
      return;
    }

    const groups = new Map();
    for (const c of state.chapterPreview) {
      const pid = String(c.projectId);
      if (!groups.has(pid)) groups.set(pid, []);
      groups.get(pid).push(c);
    }

    const html = [];
    for (const [pid, items] of groups) {
      const p = state.panelProjects.find((x) => String(x.projectId) === pid);
      const title = p?.projectName || items[0]?.projectName || pid;
      const examLine = p ? escHtml(p.examLabel || "\u5f85\u67e5") : "\u8003\u8bd5\u4fe1\u606f\u52a0\u8f7d\u4e2d…";
      const wareDone = items.filter((x) => x.done).length;
      html.push(`<div class="hbzj-preview-group">
        <div class="hbzj-preview-hd">${escHtml(title)}</div>
        <div class="hbzj-preview-exam">\u8003\u8bd5\uff1a${examLine}</div>
        <div class="hbzj-course-meta" style="margin:4px 0 6px;">\u89c6\u9891 ${wareDone}/${items.length}</div>
        ${items
          .map((c) => {
            const pct = wareProgressPct(c.studied, c.total, c.done);
            return `<div class="hbzj-chapter-item">
              <div class="hbzj-course-name">${escHtml(c.name)}</div>
              <div class="hbzj-course-meta">${c.done ? "\u5df2\u8fbe\u6807" : "\u672a\u5b8c\u6210"} · ${formatMinutes(c.studied)} / ${formatMinutes(c.total)}\uff08${pct}%\uff09</div>
            </div>`;
          })
          .join("")}
      </div>`);
    }
    box.innerHTML = html.join("") || `<div class="hbzj-empty-state">\u6682\u65e0\u89c6\u9891</div>`;
  }

  async function _rcp() {
    const q = loadQueue().map(String).filter(Boolean);
    const rows = [];
    if (!q.length) {
      state.chapterPreview = [];
      return;
    }
    for (const id of q) {
      const p = state.panelProjects.find((x) => String(x.projectId) === String(id));
      if (!p) {
        rows.push({
          projectId: id,
          projectName: id,
          name: "\uff08\u5217\u8868\u4e2d\u627e\u4e0d\u5230\u8be5\u73ed\u7ea7\uff0c\u8bf7\u5148\u5237\u65b0\uff09",
          studied: 0,
          total: 0,
          done: false,
          kind: "ware",
        });
        continue;
      }
      try {
        const books = await fetchClassBooks(id);
        const videos = flattenVideosFromBooks(books, id).filter((v) => !isEbookVideo(v));
        if (!videos.length) {
          rows.push({
            projectId: id,
            projectName: p.projectName,
            name: "\u672a\u83b7\u53d6\u5230\u89c6\u9891\u5217\u8868",
            studied: 0,
            total: 0,
            done: false,
            kind: "ware",
          });
        } else {
          for (const v of videos) {
            const done = isVideoDone(v);
            rows.push({
              projectId: id,
              projectName: p.projectName,
              videoId: String(v.myClassCourseVideoId || ""),
              name: videoNameOf(v),
              studied: videoDisplayStudiedSeconds(v),
              total: videoTotalSeconds(v),
              done,
              kind: "ware",
            });
          }
          const allDone = videos.every(isVideoDone);
          if (allDone) {
            p.videoFinishedStatus = true;
            p.studyProgress = Math.max(Number(p.studyProgress || 0), 100);
          }
          syncProjectFinishedFlags(p);
        }
      } catch (e) {
        trace(`preview ${id}: ${e.message || e}`);
        rows.push({
          projectId: id,
          projectName: p.projectName,
          name: `\u52a0\u8f7d\u5931\u8d25\uff1a${e.message || e}`,
          studied: 0,
          total: 0,
          done: false,
          kind: "ware",
        });
      }
    }
    state.chapterPreview = rows;
  }

  function formatExamScore(score) {
    const n = Number(score);
    if (!Number.isFinite(n)) return "";
    return Number.isInteger(n) ? `${n}\u5206` : `${Number(n.toFixed(1))}\u5206`;
  }

  function examLabelForProject(project, papers) {
    const pid = String(project?.projectId || "");
    const mine = (papers || []).filter((row) => String(row.myClassId || "") === pid);
    if (!mine.length) {
      return { examRequired: false, examDone: true, examLabel: "\u65e0\u8bd5\u5377", examScore: null };
    }
    const pending = mine.filter(paperNeedsExam);
    if (pending.length) {
      const lastScore = Number(pending[0].score);
      const scoreHint =
        Number.isFinite(lastScore) && lastScore > 0
          ? `\uff08\u4e0a\u6b21${formatExamScore(lastScore)}\uff09`
          : "";
      return {
        examRequired: true,
        examDone: false,
        examScore: Number.isFinite(lastScore) ? lastScore : null,
        examLabel:
          (pending.length === 1 ? "\u5f85\u8003\u8bd5" : `\u5f85\u8003\u8bd5 ${pending.length} \u4efd`) + scoreHint,
      };
    }
    const passed = mine.filter(
      (row) =>
        Number(row.isPass) === 1 ||
        String(row.statusName || "").includes("\u5df2\u901a\u8fc7") ||
        (Number.isFinite(Number(row.score)) &&
          Number(row.score) >= Number(row.passScore ?? 60))
    );
    if (passed.length) {
      const best = Math.max(...passed.map((r) => Number(r.score) || 0));
      const scoreText = formatExamScore(best);
      return {
        examRequired: false,
        examDone: true,
        examScore: best,
        examLabel: scoreText ? `\u5df2\u901a\u8fc7 ${scoreText}` : "\u5df2\u901a\u8fc7",
      };
    }
    const blocked = mine.filter(
      (row) =>
        Number(row.studySpeed || 0) < 100 || String(row.statusName || "").includes("\u672a\u5b8c\u6210\u5b66\u4e60")
    );
    if (blocked.length) {
      return { examRequired: false, examDone: false, examScore: null, examLabel: "\u9700\u5148\u5b66\u5b8c" };
    }
    const anyScore = Math.max(...mine.map((r) => Number(r.score) || 0), 0);
    if (anyScore > 0) {
      return {
        examRequired: false,
        examDone: true,
        examScore: anyScore,
        examLabel: `\u6210\u7ee9 ${formatExamScore(anyScore)}`,
      };
    }
    return { examRequired: false, examDone: true, examScore: null, examLabel: "\u65e0\u5f85\u8003" };
  }

  async function enrichExamStatusForProjects(list, limit) {
    const targets = (list || []).slice(0, Math.max(1, limit || 12));
    let papers = null;
    try {
      papers = await fetchPaperList(9);
      if (!papers.length) papers = await fetchPaperList(1);
    } catch (_) {
      papers = [];
    }
    for (const p of targets) {
      if (!p || p._examEnriched) continue;
      const st = examLabelForProject(p, papers);
      p.examRequired = st.examRequired;
      p.examDone = st.examDone;
      p.examLabel = st.examLabel;
      p.examScore = st.examScore;
      p._examEnriched = true;
      syncProjectFinishedFlags(p);
      updatePanel();
      await sleep(60);
    }
  }

  async function _rpp(opt) {
    const silent = !!opt?.silent;
    state.panelRefreshing = true;
    updatePanel();
    try {
      for (let i = 0; i < 8 && !getAccountId(); i++) {
        const cms = readCmsAccountInfo();
        if (cms?.accountId) rememberAccountId(cms.accountId);
        await sleep(400);
      }
      if (!getAccountId()) {
        if (mergeCapturedIntoPanel(true)) {
          if (!silent) trace(`\u5df2\u7528\u9875\u9762\u7f13\u5b58\u5217\u8868\uff1a${state.panelProjects.length} \u9879`);
          return;
        }
        throw new Error("\u672a\u83b7\u53d6 accountId\uff0c\u8bf7\u786e\u8ba4\u5df2\u767b\u5f55\u540e\u70b9\u5237\u65b0");
      }
      try {
        await ensureUserProfile(false);
      } catch (e) {
        trace(`\u7528\u6237\u4fe1\u606f: ${e.message || e}`);
      }
      await fetchYears();
      state.panelProjects = await fetchAllPanelProjects();
      await enrichProjectNames(state.panelProjects, 50);
      if (!state.panelProjects.length) {
        mergeCapturedIntoPanel(true);
        await enrichProjectNames(state.panelProjects, 50);
      }
      await _rcp();
      void enrichExamStatusForProjects(
        [
          ...state.panelProjects.filter((p) => loadQueue().map(String).includes(String(p.projectId))),
          ...state.panelProjects.filter((p) => p.listSource === "learning"),
          ...state.panelProjects.filter((p) => p.listSource === "completed"),
        ],
        20
      );
      const nLearn = state.panelProjects.filter((p) => p.listSource === "learning").length;
      const nDone = state.panelProjects.filter((p) => p.listSource === "completed").length;
      if (!silent) trace(`\u5df2\u5237\u65b0\uff1a\u6b63\u5728\u5b66 ${nLearn} · \u5df2\u5b8c\u6210 ${nDone}`);
    } catch (e) {
      if (mergeCapturedIntoPanel(true)) {
        trace(`\u63a5\u53e3\u5f02\u5e38\uff0c\u5df2\u663e\u793a\u62e6\u622a\u5217\u8868\uff1a${e.message || e}`);
      } else {
        trace(`\u5237\u65b0\u5931\u8d25\uff1a${e.message || e}`);
      }
    } finally {
      state.panelRefreshing = false;
      updatePanel();
    }
  }

  function selectUnfinishedProjects() {
    const list = state.panelProjects.filter(isProjectSelectable).map((p) => p.projectId);
    saveQueue(list);
    state.chapterPreviewLoading = true;
    renderChapterPreview();
    void _rcp()
      .catch((e) => log(`\u7ae0\u8282\u9884\u89c8\u5931\u8d25\uff1a${e.message || e}`))
      .finally(() => {
        state.chapterPreviewLoading = false;
        updatePanel();
      });
    trace(`\u5df2\u52fe\u9009\u672a\u5b8c\u6210 ${list.length} \u9879`);
  }

  function clearProjectSelection() {
    saveQueue([]);
    state.chapterPreview = [];
    updatePanel();
  }

  function injectPanelStyles() {
    const id = "hbzj-panel-style-v2";
    if (document.getElementById(id)) return;
    document.getElementById("hbzj-panel-style-v1")?.remove();
    const style = document.createElement("style");
    style.id = id;
    style.textContent = `
      #hbzj-auto-panel{position:fixed;right:20px;top:80px;z-index:999999;width:412px;max-width:calc(100vw - 24px);display:flex;flex-direction:column;background:#f4f7fb;border:1px solid #dbe4f0;border-radius:16px;box-shadow:0 16px 40px rgba(15,23,42,.17);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;font-size:12px;color:#0f172a;overflow:hidden;max-height:min(92vh,780px);}
      #hbzj-panel-header{padding:8px 11px;background:linear-gradient(180deg,#f8ecd5,#f4e8cf);border-bottom:1px solid #e5dbc6;display:flex;justify-content:space-between;align-items:center;cursor:move;user-select:none;}
      #hbzj-panel-brand{display:flex;align-items:center;gap:9px;min-width:0;flex:1;}
      #hbzj-panel-logo{width:30px;height:30px;border-radius:9px;object-fit:cover;display:block;flex:0 0 auto;background:#e2e8f0;}
      #hbzj-panel-title{font-size:13px;font-weight:900;color:#9a3412;line-height:1.26;}
      #hbzj-panel-sub{margin-top:3px;font-size:11px;color:#7c2d12;font-weight:700;}
      #hbzj-panel-controls{display:flex;gap:5px;}
      .hbzj-panel-ctl{border:none;background:#fff;color:#64748b;width:28px;height:28px;border-radius:999px;cursor:pointer;font-size:15px;font-weight:900;}
      #hbzj-panel-body{flex:1 1 auto;min-height:0;overflow-y:auto;padding:8px;}
      #hbzj-panel-footer{padding:7px 11px;background:#eef2f7;border-top:1px solid #dbe4f0;font-size:12px;}
      .hbzj-footer-extra{padding:6px 9px;background:#f8fafc;border-top:1px solid #e2e8f0;}
      .hbzj-ann{position:relative;font-size:12px;color:#334155;line-height:1.42;background:linear-gradient(180deg,#fffdf5,#fff7e6);border:1px solid #fcd34d;border-radius:11px;padding:8px 9px 8px 11px;}
      .hbzj-ann::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,#f59e0b,#ef4444);border-top-left-radius:11px;border-bottom-left-radius:11px;}
      .hbzj-card{background:#fff;border:1px solid #d9e2ee;border-radius:12px;padding:7px 9px;margin-bottom:7px;}
      .hbzj-status-row{display:flex;justify-content:space-between;align-items:center;gap:7px;}
      .hbzj-status-metrics{font-size:12px;color:#475569;}
      .hbzj-status-metrics em{font-style:normal;font-weight:900;color:#0f172a;}
      .hbzj-progress-pct{font-size:14px;font-weight:900;color:#0369a1;}
      .hbzj-progress-bar{height:5px;border-radius:999px;background:#e2e8f0;overflow:hidden;margin-top:4px;}
      .hbzj-progress-bar>span{display:block;height:100%;width:0;background:linear-gradient(90deg,#22d3ee,#2563eb);transition:width .2s ease;}
      .hbzj-tabbar{display:flex;gap:6px;margin-bottom:7px;}
      .hbzj-tab-btn{flex:1;border:1px solid #cbd5e1;background:#f8fafc;color:#475569;padding:4px;border-radius:9px;cursor:pointer;font-weight:700;font-size:11px;}
      .hbzj-tab-btn.active{background:linear-gradient(135deg,#1d4ed8,#0ea5e9);color:#fff;border-color:transparent;}
      .hbzj-pane{display:none;}.hbzj-pane.active{display:block;}
      .hbzj-list-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;gap:6px;flex-wrap:wrap;}
      .hbzj-list-title{font-size:12px;color:#64748b;font-weight:700;}
      .hbzj-list-tag{font-size:11px;color:#92400e;background:#ffedd5;border:1px solid #fdba74;border-radius:999px;padding:2px 7px;}
      .hbzj-list-head-actions{display:flex;gap:6px;align-items:center;flex-wrap:nowrap;justify-content:flex-start;flex:1 1 100%;}
      .hbzj-list-head-actions .hbzj-btn{flex:0 0 auto !important;width:auto;min-width:0;white-space:nowrap;padding:4px 8px;font-size:11px;line-height:1.2;}
      .hbzj-btn{border:none;color:#fff;padding:7px 9px;border-radius:10px;cursor:pointer;font-weight:800;font-size:12px;}
      .hbzj-btn-ghost{background:#fff !important;color:#0f172a !important;border:1px solid #cbd5e1;}
      .hbzj-btn-start{flex:1;background:#16a34a;}
      .hbzj-btn-stop{flex:1;background:#ef4444;}
      .hbzj-btn-off,.hbzj-btn:disabled{background:#cbd5e1 !important;color:#64748b !important;cursor:not-allowed;}
      .hbzj-btn-row{display:flex;gap:7px;}
      .hbzj-btn-pro{border:none;background:linear-gradient(135deg,#f59e0b,#ea580c);color:#fff;border-radius:8px;padding:5px 10px;font-weight:800;cursor:pointer;font-size:12px;}
      #hbzj-course-list,#hbzj-chapter-preview,#hbzj-run-log{max-height:188px;overflow-y:auto;background:#f8fafc;border:1px solid #dbe4f0;border-radius:11px;padding:5px;}
      .hbzj-empty-state{padding:12px 7px;text-align:center;color:#94a3b8;font-size:12px;font-weight:700;}
      .hbzj-course-item,.hbzj-chapter-item{display:flex;gap:7px;align-items:flex-start;border:1px solid #e2e8f0;border-radius:8px;padding:7px;margin-bottom:6px;cursor:pointer;background:#f8fafc;}
      .hbzj-course-name{font-size:12px;line-height:1.38;font-weight:700;display:flex;align-items:flex-start;gap:6px;flex-wrap:wrap;}
      .hbzj-course-meta{font-size:11px;color:#64748b;margin-top:2px;line-height:1.4;}
      .hbzj-badge{font-size:10px;font-weight:800;padding:2px 6px;border-radius:999px;border:1px solid;line-height:1.3;}
      .hbzj-badge-learn{color:#1d4ed8;background:#eff6ff;border-color:#93c5fd;}
      .hbzj-badge-exam{color:#c2410c;background:#fff7ed;border-color:#fdba74;}
      .hbzj-badge-done{color:#047857;background:#ecfdf5;border-color:#6ee7b7;}
      .hbzj-preview-group{margin-bottom:7px;border:1px solid #dbe4f0;border-radius:9px;background:#fff;padding:0;}
      .hbzj-preview-hd{padding:6px 9px;background:#eaf1ff;border-bottom:1px solid #dbe4f0;color:#1d4ed8;font-size:12px;font-weight:700;}
      .hbzj-preview-exam{margin:6px 8px;font-size:11px;font-weight:700;color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;padding:5px 7px;line-height:1.4;}
      .hbzj-preview-group .hbzj-chapter-item{margin:0 6px 6px;background:#f8fafc;}
      .hbzj-meta-row{display:flex;justify-content:space-between;gap:7px;font-size:11px;margin-bottom:4px;}
      .hbzj-meta-label{color:#64748b;}.hbzj-meta-value{font-weight:700;text-align:right;max-width:68%;word-break:break-all;}
      .hbzj-log-line{padding:4px 6px;border-bottom:1px dashed #d4deea;font-size:12px;line-height:1.42;display:flex;gap:6px;align-items:baseline;flex-wrap:wrap;}
      .hbzj-log-time{color:#94a3b8;font-size:11px;font-weight:700;flex:0 0 auto;}
      .hbzj-log-text{font-weight:700;word-break:break-word;}
      .hbzj-log-start .hbzj-log-text{color:#15803d;}
      .hbzj-log-study .hbzj-log-text{color:#1d4ed8;}
      .hbzj-log-done .hbzj-log-text{color:#047857;}
      .hbzj-log-exam .hbzj-log-text{color:#c2410c;}
      .hbzj-log-warn .hbzj-log-text{color:#b45309;}
      .hbzj-log-stop .hbzj-log-text{color:#64748b;}
      .hbzj-log-info .hbzj-log-text{color:#334155;}
      .hbzj-log-hint{background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;margin:2px 0;padding:5px 7px !important;border-bottom:none;}
      .hbzj-log-hint .hbzj-log-text{color:#0369a1;}
      .hbzj-log-tip{margin:0 0 6px;padding:6px 8px;border-radius:8px;background:#eff6ff;border:1px solid #bfdbfe;color:#0369a1;font-size:11px;font-weight:700;line-height:1.45;}
      #hbzj-year-select{border:1px solid #cbd5e1;border-radius:8px;padding:3px 6px;font-size:12px;margin-left:4px;}
      #hbzj-pro-modal{position:fixed;inset:0;z-index:1000000;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;padding:16px;}
      .hbzj-pro-card{width:min(420px,94vw);background:#fff;border-radius:14px;padding:16px;box-shadow:0 20px 50px rgba(0,0,0,.25);}
      .hbzj-pro-title{font-size:18px;font-weight:900;color:#9a3412;}
      .hbzj-pro-sub{margin-top:6px;font-size:12px;color:#78716c;line-height:1.45;}
      .hbzj-pro-sec{margin-top:12px;}
      .hbzj-pro-sec h4{margin:0 0 6px;font-size:13px;color:#0f172a;}
      .hbzj-pro-sec ul{margin:0;padding-left:18px;font-size:12px;color:#334155;line-height:1.55;}
      .hbzj-pro-sec p{margin:0;font-size:12px;color:#475569;line-height:1.5;}
      .hbzj-pro-buy-btn{margin-top:8px;border:none;background:linear-gradient(135deg,#f59e0b,#ea580c);color:#fff;border-radius:8px;padding:8px 12px;font-weight:800;cursor:pointer;width:100%;}
      .hbzj-pro-actions{margin-top:14px;display:flex;justify-content:flex-end;}
      .hbzj-pro-close{border:1px solid #cbd5e1;background:#f8fafc;border-radius:8px;padding:7px 12px;cursor:pointer;font-weight:700;}
      #hbzj-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);z-index:1000001;background:rgba(15,23,42,.92);color:#fff;padding:10px 14px;border-radius:10px;font-size:12px;font-weight:700;opacity:0;pointer-events:none;transition:.2s ease;max-width:86vw;}
      #hbzj-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
    `;
    (document.head || document.documentElement).appendChild(style);
  }

  function _cp() {
    if (document.getElementById("hbzj-auto-panel")) return;
    injectPanelStyles();
    const panel = document.createElement("div");
    panel.id = "hbzj-auto-panel";
    panel.innerHTML = `
      <div id="hbzj-panel-header">
        <div id="hbzj-panel-brand">
          <img id="hbzj-panel-logo" src="${PANEL_LOGO_URL}" alt="logo" width="30" height="30"/>
          <div>
            <div id="hbzj-panel-title">\u6e56\u5317\u4e13\u6280\u57f9\u8bad\u5b66\u4e60\u52a9\u624b <span style="font-size:11px;color:#64748b;">v${SCRIPT_VERSION}</span></div>
            <div id="hbzj-panel-sub">\u81ea\u52a8\u770b\u8bfe\u4e0e\u8003\u8bd5</div>
          </div>
        </div>
        <div id="hbzj-panel-controls">
          <button id="hbzj-btn-min" class="hbzj-panel-ctl" type="button" title="\u6700\u5c0f\u5316">—</button>
          <button id="hbzj-btn-max" class="hbzj-panel-ctl" type="button" title="\u5c55\u5f00" style="display:none">+</button>
        </div>
      </div>
      <div id="hbzj-panel-body">
        <div class="hbzj-card">
          <div class="hbzj-status-row">
            <span style="font-size:11px;color:#64748b;font-weight:700;">\u8fd0\u884c\u72b6\u6001</span>
            <span id="hbzj-auto-status">\u5df2\u505c\u6b62</span>
          </div>
          <div class="hbzj-status-row" style="margin-top:4px;">
            <div class="hbzj-status-metrics">\u8bfe\u4ef6 <em id="hbzj-queue-done">0</em>/<span id="hbzj-queue-total">0</span> · \u5168\u5b8c\u6210 <em id="hbzj-queue-exam">—</em></div>
            <span class="hbzj-progress-pct" id="hbzj-queue-percent">0%</span>
          </div>
          <div class="hbzj-progress-bar"><span id="hbzj-queue-progress"></span></div>
        </div>
        <div class="hbzj-card">
          <div class="hbzj-tabbar">
            <button class="hbzj-tab-btn active" data-tab="course" type="button">\u8bfe\u7a0b\u5217\u8868</button>
            <button class="hbzj-tab-btn" data-tab="chapter" type="button">\u7ae0\u8282\u9884\u89c8</button>
            <button class="hbzj-tab-btn" data-tab="log" type="button">\u8fd0\u884c\u65e5\u5fd7</button>
            <button class="hbzj-tab-btn" data-tab="settings" type="button">\u8bbe\u7f6e</button>
          </div>
          <div class="hbzj-pane active" data-pane="course">
            <div class="hbzj-list-head">
              <span class="hbzj-list-title">\u5b66\u4e60\u5e74\u4efd
                <select id="hbzj-year-select" title="\u5b66\u4e60\u5e74\u4efd"></select>
              </span>
              <div class="hbzj-list-head-actions">
                <button id="hbzj-select-unfinished" class="hbzj-btn hbzj-btn-ghost" type="button">\u4e00\u952e\u52fe\u9009\u672a\u5b8c\u6210</button>
                <button id="hbzj-clear-select" class="hbzj-btn hbzj-btn-ghost" type="button">\u53d6\u6d88</button>
                <button id="hbzj-refresh" class="hbzj-btn hbzj-btn-ghost" type="button">\u5237\u65b0</button>
              </div>
            </div>
            <div id="hbzj-course-list"><div class="hbzj-empty-state">\u767b\u5f55\u540e\u5c06\u81ea\u52a8\u52a0\u8f7d</div></div>
          </div>
          <div class="hbzj-pane" data-pane="chapter">
            <div class="hbzj-list-head"><span class="hbzj-list-title">\u7ae0\u8282\u9884\u89c8</span><span class="hbzj-list-tag">\u89c6\u9891</span></div>
            <div id="hbzj-chapter-preview"><div class="hbzj-empty-state">\u8bf7\u52fe\u9009\u73ed\u7ea7</div></div>
          </div>
          <div class="hbzj-pane" data-pane="log">
            <div class="hbzj-list-head"><span class="hbzj-list-title">\u8fd0\u884c\u65e5\u5fd7</span><span class="hbzj-list-tag">\u8fdb\u5ea6</span></div>
            <div class="hbzj-log-tip">⏱ \u770b\u8bfe\u8fdb\u5ea6\u7ea6\u6bcf ${CV_INTERVAL_MINUTES} \u5206\u949f\u66f4\u65b0\u4e00\u6b21\uff0c\u7b49\u5f85\u671f\u95f4\u811a\u672c\u4ecd\u5728\u8fd0\u884c</div>
            <div id="hbzj-run-log"><div class="hbzj-empty-state">\u6682\u65e0\u65e5\u5fd7</div></div>
          </div>
          <div class="hbzj-pane" data-pane="settings">
            <div class="hbzj-list-head"><span class="hbzj-list-title">\u4f1a\u5458</span><span class="hbzj-list-tag">\u8bbe\u7f6e</span></div>
            <div class="hbzj-meta-row"><span class="hbzj-meta-label">\u4f1a\u5458\u72b6\u6001</span><span class="hbzj-meta-value" id="hbzj-cloud-tier">—</span></div>
            <div class="hbzj-meta-row" id="hbzj-cloud-free-row" style="display:none"><span class="hbzj-meta-label" id="hbzj-cloud-free-label">\u6709\u6548\u671f</span><span class="hbzj-meta-value" id="hbzj-cloud-free">—</span></div>
            <div class="hbzj-meta-row" style="align-items:center;flex-wrap:wrap;gap:6px;">
              <span class="hbzj-meta-label">\u6388\u6743\u7801</span>
              <input id="hbzj-cloud-token" type="text" placeholder="\u7c98\u8d34\u6388\u6743\u7801" style="flex:1;min-width:100px;border:1px solid #cbd5e1;border-radius:8px;padding:4px 7px;font-size:12px"/>
              <button id="hbzj-cloud-save" class="hbzj-btn hbzj-btn-ghost" type="button" style="padding:4px 8px;font-size:12px;">\u4fdd\u5b58</button>
              <button id="hbzj-open-pro" class="hbzj-btn-pro" type="button">\u5f00\u901a\u4f1a\u5458</button>
            </div>
          </div>
        </div>
        <div class="hbzj-card">
          <div class="hbzj-meta-row"><span class="hbzj-meta-label">\u5f53\u524d\u7528\u6237</span><span class="hbzj-meta-value" id="hbzj-current-user">—</span></div>
          <div class="hbzj-meta-row"><span class="hbzj-meta-label">\u5f53\u524d\u4efb\u52a1</span><span class="hbzj-meta-value" id="hbzj-current-task">\u52fe\u9009\u73ed\u7ea7\u540e\u70b9\u300c\u5f00\u59cb\u300d</span></div>
          <div class="hbzj-meta-row" style="display:none"><span class="hbzj-meta-label">\u5f53\u524d\u8bfe\u7a0b</span><span class="hbzj-meta-value" id="hbzj-current-course">\u65e0</span></div>
          <div class="hbzj-meta-row" style="display:none"><span class="hbzj-meta-label">\u5f53\u524d\u8bfe\u4ef6</span><span class="hbzj-meta-value" id="hbzj-current-chapter">\u65e0</span></div>
        </div>
        <div class="hbzj-card">
          <div class="hbzj-btn-row">
            <button id="hbzj-start" class="hbzj-btn hbzj-btn-start" type="button">\u5f00\u59cb</button>
            <button id="hbzj-stop" class="hbzj-btn hbzj-btn-stop hbzj-btn-off" type="button" disabled>\u505c\u6b62</button>
          </div>
        </div>
      </div>
      <div class="hbzj-footer-extra"><div class="hbzj-ann"><span id="hbzj-ann-text">${escHtml(PANEL_NOTICE_FALLBACK)}</span></div></div>
      <div id="hbzj-panel-footer">\u961f\u5217\u72b6\u6001\uff1a<span id="hbzj-queue-text">\u672a\u9009\u62e9</span></div>
    `;
    document.body.appendChild(panel);

    const savedPos = readPanelPos();
    if (savedPos?.left != null && savedPos?.top != null) {
      panel.style.right = "auto";
      panel.style.left = `${savedPos.left}px`;
      panel.style.top = `${savedPos.top}px`;
    }
    applyPanelCollapsed(panel, readPanelCollapsed());
    enablePanelDrag(panel);

    panel.querySelector("#hbzj-btn-min")?.addEventListener("click", (e) => {
      e.stopPropagation();
      writePanelCollapsed(true);
      applyPanelCollapsed(panel, true);
    });
    panel.querySelector("#hbzj-btn-max")?.addEventListener("click", (e) => {
      e.stopPropagation();
      writePanelCollapsed(false);
      applyPanelCollapsed(panel, false);
    });
    panel.querySelectorAll(".hbzj-tab-btn").forEach((btn) => {
      btn.addEventListener("click", () => switchPanelTab(btn.dataset.tab));
    });

    const yearSel = panel.querySelector("#hbzj-year-select");
    const fillYears = () => {
      if (!yearSel) return;
      const opts = state.yearOptions.length ? state.yearOptions : [state.studyYear || new Date().getFullYear()];
      yearSel.innerHTML = opts
        .map((y) => `<option value="${y}" ${Number(y) === Number(state.studyYear) ? "selected" : ""}>${y}</option>`)
        .join("");
    };
    fillYears();
    yearSel?.addEventListener("change", () => {
      state.studyYear = Number(yearSel.value) || null;
      pageStorage().setItem(YEAR_KEY, String(state.studyYear || ""));
      void _rpp({ reason: "year" });
    });
    panel.__fillYears = fillYears;

    document.getElementById("hbzj-refresh")?.addEventListener("click", () => {
      void _rpp({ reason: "manual" }).then(() => panel.__fillYears?.());
    });
    document.getElementById("hbzj-select-unfinished")?.addEventListener("click", () => selectUnfinishedProjects());
    document.getElementById("hbzj-clear-select")?.addEventListener("click", () => clearProjectSelection());
    document.getElementById("hbzj-cloud-save")?.addEventListener("click", () => {
      const input = document.getElementById("hbzj-cloud-token");
      void _sct(input?.value || "").then((ok) => {
        updateCloudPanelUI();
        showToast(ok ? "\u5df2\u4fdd\u5b58" : "\u4fdd\u5b58\u5931\u8d25");
      });
    });
    document.getElementById("hbzj-open-pro")?.addEventListener("click", () => openProModal());

    document.getElementById("hbzj-start")?.addEventListener("click", () => {
      const q = loadQueue().filter((id) => {
        const p = state.panelProjects.find((x) => x.projectId === id);
        return p && isProjectSelectable(p);
      });
      saveQueue(q);
      if (!q.length) {
        log("\u8bf7\u5148\u52fe\u9009\u73ed\u7ea7");
        showToast("\u8bf7\u5148\u52fe\u9009\u73ed\u7ea7");
        updatePanel();
        return;
      }
      void (async () => {
        try {
          await _ecl(true);
        } catch (_) {}
        if (!(await _acp())) {
          updatePanel();
          return;
        }
        state.enabled = true;
        state.lastUserAction = "";
        state._studyWaitHintShown = false;
        updatePanel();
        void _rse();
      })();
    });

    document.getElementById("hbzj-stop")?.addEventListener("click", () => {
      state.enabled = false;
      state.lastUserAction = "";
      state._studyWaitHintShown = false;
      updatePanel();
    });

    updatePanel();
    void _fcc();
  }

  async function _bst() {
    const host = String(location.hostname || "");
    if (!/yxlearning\.com$/i.test(host)) return;

    const cms = readCmsAccountInfo();
    if (cms?.accountId) rememberAccountId(cms.accountId);
    installAuthHooks();

    const waitBody = () =>
      new Promise((r) => {
        if (document.body) r();
        else document.addEventListener("DOMContentLoaded", r, { once: true });
      });
    await waitBody();
    await sleep(600);
    _cp();
    await _rpp({ reason: "boot", silent: true });
    try {
      await _ecl(false);
    } catch (_) {}
    if (!state.panelProjects.length) {
      for (let i = 0; i < 6 && !state.panelProjects.length; i++) {
        await sleep(800);
        if (mergeCapturedIntoPanel(true)) break;
        if (getAccountId()) {
          await _rpp({ reason: "retry", silent: true });
          break;
        }
      }
    }
    const panel = document.getElementById("hbzj-auto-panel");
    panel?.__fillYears?.();
    state._bootLoaded = true;
    if (!getAccountId()) {
      trace("\u672a\u767b\u5f55\uff0c\u8bf7\u6253\u5f00\u6211\u7684\u5b66\u4e60\u540e\u5237\u65b0");
    } else if (!state.panelProjects.length) {
      trace("\u5217\u8868\u4e3a\u7a7a\uff0c\u8bf7\u6253\u5f00\u6211\u7684\u5b66\u4e60\u9875\u540e\u518d\u5237\u65b0");
    }
  }

  _bst().catch((e) => trace(e));
})();