// ==UserScript==
// @name         （秒刷）重庆人社培训网(cqrl.21tb.com)·自动刷课工具免费版
// @namespace    https://cqrl.21tb.com/
// @version      2.5.1
// @description  重庆人社培训网(cqrl.21tb.com) 自动刷课工具（半自动）。功能：不真实播放视频，直连平台接口快速完成课程进度并同步完成态。使用方法：进入任意一门课程的「学习/播放页」（地址含 courseStudyItem.learn.do、页面有视频播放器）→ 点面板「⚡ 后台效率刷」即一键完成本课；刷完弹出「恭喜完成」提示。自带双通道（HTTP 直连 + 官方 iframe 通道）、防刷软拦截自动退避重试、诊断/自检/通道测试/刷新率。遇到问题点「💬反馈群」加群交流或「🧾诊断」复制信息反馈。
// @author       cqrl-tools
// @match        https://cqrl.21tb.com/*
// @match        http://cqrl.21tb.com/*
// @run-at       document-idle
// @noframes
// @grant        none
// @require      https://cdn.jsdelivr.net/npm/crypto-js@4.2.0/crypto-js.min.js
// @license All Rights Reserved
// ==/UserScript==




(function () {
  'use strict';

  const CORP_CODE = 'cqrl';
  const API_BASE = 'https://cqrl.21tb.com';
  const ANTI_CHEAT_RE = /异常|学霸君|行为|按要求|防刷|strict/i;
  const VER = '2.5.1';
  const FAVICON = 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  const LS_PANEL = 'cqrl_panel_v2';
  const LS_BATCH = 'cqrl_batch_v1';

  let stopFlag = false;
  let BUSY = false;
  let _resStart = {};   

  
  function sleep(ms) { return new Promise(r => setTimeout(r, ms)); }
  
  const REQ_TIMEOUT = 15000;
  function withTimeout(promise, ms, fallback) {
    let done = false;
    return new Promise(function (resolve) {
      const t = setTimeout(function () { if (!done) { done = true; resolve(fallback); } }, ms);
      Promise.resolve(promise).then(function (v) {
        if (done) return; done = true; clearTimeout(t); resolve(v);
      }, function () {
        if (done) return; done = true; clearTimeout(t); resolve(fallback);
      });
    });
  }

  function getCookie(n) {
    const m = document.cookie.match(new RegExp('(?:^|; )' + n + '=([^;]*)'));
    return m ? decodeURIComponent(m[1]) : '';
  }
  
  function ssGet(k) { try { return (sessionStorage.getItem(k) || ''); } catch (_) { return ''; } }
  function getElnSessionId() {
    return (ssGet('eln_session_id') ||
      getCookie('eln_session_id') ||
      (new URLSearchParams(location.search).get('eln_session_id') || '') ||
      (location.hash.match(/eln_session_id=([^&]+)/) || [])[1] || '').trim();
  }
  function getCorpCode() { return ssGet('corp_code') || CORP_CODE; }
  function getLocalHeader() {
    const lang = (navigator.language || 'zh').substr(0, 2);
    return lang === 'en' ? 'en_US' : 'zh_CN';
  }

  
  async function pageFetch(url, options, ms) {
    options = options || {};
    const limit = Number(ms) || REQ_TIMEOUT;
    const ctl = (typeof AbortController === 'function') ? new AbortController() : null;
    let timer = null;
    try {
      if (ctl) {
        options.signal = ctl.signal;
        timer = setTimeout(function () { try { ctl.abort(); } catch (_) {} }, limit);
      }
      const resp = await fetch(url, Object.assign({ credentials: 'include' }, options));
      const text = await resp.text();
      let data = text;
      try { data = JSON.parse(text); } catch (_) {}
      return { ok: resp.ok, status: resp.status, data, raw: text };
    } catch (e) {
      return { ok: false, status: 0, data: null, raw: '', timeout: true, error: String((e && e.message) || e) };
    } finally {
      if (timer) clearTimeout(timer);
    }
  }
  async function httpGet(url) {
    return pageFetch(url, { method: 'GET', headers: { Accept: 'application/json, text/plain, */*' } });
  }
  async function httpPost(url, body, headers) {
    const payload = typeof body === 'string' ? body : JSON.stringify(body || {});
    const hdrs = Object.assign({ 'Content-Type': 'application/json', Accept: 'application/json, text/plain, */*' }, headers || {});
    return pageFetch(url, { method: 'POST', headers: hdrs, body: payload });
  }
  async function httpPostForm(url, formObj) {
    const payload = typeof formObj === 'string' ? formObj : new URLSearchParams(formObj || {}).toString();
    return pageFetch(url, {
      method: 'POST',
      headers: { 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8', Accept: 'application/json, text/plain, */*' },
      body: payload,
    });
  }

  
  async function rmsPost(path, body) {
    const resp = await httpPost(API_BASE + path, body || {});
    return resp.data;
  }

  function unwrap(data) {
    if (data == null) return data;
    if (typeof data !== 'object') return data;
    if (data.bizResult !== undefined) return data.bizResult;
    if (data.result !== undefined) return data.result;
    if (data.data !== undefined) return data.data;
    if (Array.isArray(data.rows)) return data.rows;
    return data;
  }
  function parseJsonData(raw) {
    if (raw == null) return null;
    if (typeof raw === 'object') return raw;
    const text = String(raw).trim();
    if (!text || (text[0] !== '{' && text[0] !== '[')) return raw;
    try { return JSON.parse(text); } catch (_) { return raw; }
  }
  function nmsQuery(extra) {
    const sid = getElnSessionId();
    const q = new URLSearchParams(Object.assign({ corpCode: getCorpCode(), eln_session_id: sid }, extra || {}));
    return q.toString();
  }
  async function nmsGetRaw(path, extra) {
    const url = API_BASE + path + '?' + nmsQuery(extra);
    const resp = await httpGet(url);
    return parseJsonData(resp.data);
  }
  async function nmsPostRaw(path, body, extra) {
    const url = API_BASE + path + '?' + nmsQuery(extra);
    const resp = await httpPost(url, body || {});
    return parseJsonData(resp.data);
  }

  
  function buildBizOimHeaders(apiPath, sessionId) {
    const clean = apiPath.replace(/^\//, '');
    const parts = clean.split('/');
    const module = parts[parts.length - 2] || '';
    let method = parts[parts.length - 1] || '';
    const q = method.indexOf('?'); if (q >= 0) method = method.substring(0, q);
    const time = Date.now();
    const headers = { 'Content-Type': 'application/json', '-local': getLocalHeader() };
    if (typeof CryptoJS !== 'undefined' && sessionId) {
      try {
        const signKey = CryptoJS.MD5(sessionId).toString();
        const plain = 'module=' + module + '&method=' + method + '&time=' + time;
        const sign = CryptoJS.HmacSHA1(plain, signKey).toString(CryptoJS.enc.Base64);
        headers['-SID'] = sessionId; headers['-TIME'] = String(time); headers['-SIGN'] = sign;
      } catch (e) {}
    }
    return headers;
  }

  
  
  
  let PROVIDER = '';
  function getFrameProvider() {
    try {
      const f = parsePlayFrame();
      if (f && f.provider) return String(f.provider);
    } catch (_) {}
    try {
      const m = (document.documentElement.outerHTML || '').match(/coursePlay\/[0-9a-fA-F]{16,}(?:%26|&)([^%&"'<>\s]{2,24})(?:%26|&)/i);
      if (m && m[1] && !/^[0-9a-fA-F]{16,}$/.test(m[1])) return decodeURIComponent(m[1]);
    } catch (_) {}
    return '';
  }
  function providerList(pref) {
    const p = String(pref || PROVIDER || getFrameProvider() || 'default');
    return p === 'default' ? ['default', CORP_CODE] : [p, 'default'];
  }
  function recPayload(learningId, sourceId, extra, provider) {
    return Object.assign({ courseId: learningId, sourceId: sourceId, providerCorpCode: provider || PROVIDER || 'default' }, extra || {});
  }
  
  function chapPayload(sourceId, provider) {
    return { courseId: sourceId, sourceId: sourceId, providerCorpCode: provider || PROVIDER || 'default' };
  }
  
  function brief(d) {
    try {
      const s = (d == null) ? 'null' : (typeof d === 'object' ? JSON.stringify(d) : String(d));
      return s.slice(0, 160);
    } catch (_) { return ''; }
  }
  
  
  const SUCCESS_CODES = [0, 200, 1001, 2000];
  function respCodeOf(data) {
    if (data == null) return null;
    if (typeof data === 'object') {
      for (const k of ['code', 'respCode', 'resultCode', 'status', 'codeValue']) {
        if (data[k] != null && data[k] !== '') return Number(data[k]);
      }
    }
    return null;
  }
  function isWriteOk(data) {
    if (data == null) return false;
    if (typeof data === 'string') return /^(true|1|ok|success)$/i.test(data.trim());
    const s = JSON.stringify(data);
    if (!s || s === '{}' || s === '""') return false;
    if (ANTI_CHEAT_RE.test(s)) return false;
    const c = respCodeOf(data);
    if (c != null) return SUCCESS_CODES.indexOf(c) >= 0;
    
    return true;
  }
  function findRecord(records, resourceId) {
    return (records || []).find(function (r) { return String(r.resourceId) === String(resourceId); });
  }
  function isResourceDone(records, resourceId) {
    const r = findRecord(records, resourceId);
    if (!r) return false;
    if (r.confirmFinish === 1 || r.confirmFinish === true || r.confirmFinish === '1') return true;
    const tf = Number(r.timeToFinish || 0);
    const pos = Number(r.currentPosition || r.position || 0);
    return tf > 0 && pos >= tf - 1;
  }
  function isVideoResource(res) {
    if (!res) return false;
    const type = String(res.type || res.resourceType || 'video').toLowerCase();
    if (/doc|document|pdf|text|exam|test|html|scorm|ppt|audio|mp3/.test(type)) return false;
    const dur = Number(res.timeToFinish || res.duration || res.videoDuration || 0);
    return dur > 0 || type === 'video' || /video|mp4|flv|media/.test(type);
  }
  
  
  function collectResources(data, keepAll) {
    const out = [];
    const seen = {};
    const push = function (res, chapterId) {
      if (!res || typeof res !== 'object') return;
      const rid = res.resourceId || res.resourceRelId || res.id;
      if (!rid || seen[rid]) return;
      seen[rid] = 1;
      out.push({
        chapterId: chapterId || res.chapterId || res.chapterID || res.parentChapterId || '',
        resourceId: rid,
        resourceName: res.resourceName || res.name || res.title || rid,
        type: res.type || res.resourceType || 'video',
        timeToFinish: Number(res.timeToFinish || res.duration || res.videoDuration || 0) || 1800,
      });
    };
    const root = unwrap(data);
    
    const chapters = (root && (root.chapters || root.chapterList || root.chapterDTOS)) ||
                     (data && (data.chapters || data.chapterList || data.chapterDTOS));
    if (Array.isArray(chapters) && chapters.length) {
      chapters.forEach(function (ch) {
        if (!ch || typeof ch !== 'object') return;
        const cid = ch.chapterId || ch.chapterID || ch.id || '';
        const arr = ch.resourceDTOS || ch.resources || ch.resourceList || ch.children || ch.resourceDTOList || [];
        if (Array.isArray(arr)) arr.forEach(function (r) { push(r, cid); });
        if (ch.resourceId) push(ch, cid);
      });
    }
    
    if (!out.length) {
      const topArr = (root && (root.resources || root.resourceList || root.resourceDTOS)) || (Array.isArray(root) ? root : null);
      if (Array.isArray(topArr)) topArr.forEach(function (r) { push(r, ''); });
    }
    
    if (!out.length) {
      (function walk(o, ctx) {
        if (o == null || typeof o !== 'object') return;
        if (Array.isArray(o)) { o.forEach(function (x) { walk(x, ctx); }); return; }
        let c = ctx;
        const cid = o.chapterId || o.chapterID || o.parentChapterId || '';
        if (cid) c = cid;
        if (o.resourceId || o.resourceRelId) push(o, c);
        for (const k in o) walk(o[k], c);
      })(data, '');
    }
    if (keepAll) return out;   
    const vids = out.filter(isVideoResource);
    return vids.length ? vids : out;
  }
  async function fetchChapters(sourceId, body) {
    const data = await rmsPost('/tbc-rms/course/showCourseChapter', body || chapPayload(sourceId));
    return collectResources(data);
  }
  
  function chapterShapes(cid) {
    const pv = providerList();
    const out = [];
    pv.forEach(function (p) {
      out.push({ courseId: cid, providerCorpCode: p });
      out.push({ courseId: cid, sourceId: cid, providerCorpCode: p });
    });
    return out;
  }
  
  
  async function tryChapters(cid) {
    const map = {};
    let firstBody = null;
    for (const body of chapterShapes(cid)) {
      let rs = [];
      try {
        rs = collectResources(await withTimeout(rmsPost('/tbc-rms/course/showCourseChapter', body), REQ_TIMEOUT, null));
      } catch (_) {}
      if (!rs || !rs.length) continue;
      if (!firstBody) firstBody = body;
      rs.forEach(function (r) {
        const old = map[r.resourceId];
        if (!old || Number(r.timeToFinish || 0) > Number(old.timeToFinish || 0)) map[r.resourceId] = r;
      });
    }
    const list = Object.keys(map).map(function (k) { return map[k]; });
    if (!list.length) return null;
    if (firstBody && firstBody.providerCorpCode) PROVIDER = firstBody.providerCorpCode;
    return { resources: list, body: firstBody };
  }
  
  async function expandAllResources(bg) {
    const seen = {};
    (bg.resources || []).forEach(function (r) { seen[r.resourceId] = 1; });
    let added = 0;
    const cid = bg.sourceId || bg.courseId;
    for (const body of chapterShapes(cid)) {
      let all = [];
      try {
        all = collectResources(await withTimeout(rmsPost('/tbc-rms/course/showCourseChapter', body), REQ_TIMEOUT, null), true);
      } catch (_) {}
      (all || []).forEach(function (r) {
        if (!seen[r.resourceId]) { seen[r.resourceId] = 1; bg.resources.push(r); added++; }
      });
    }
    return added;
  }
  
  async function fetchStudyRecords(learningId, sourceId, pref) {
    const list0 = providerList(pref);
    let fallback = [];
    for (let i = 0; i < list0.length; i++) {
      const pv = list0[i];
      let arr = [];
      try {
        const data = await rmsPost('/tbc-rms/record/getStudyRecordList', recPayload(learningId, sourceId, null, pv));
        const list = unwrap(data);
        arr = Array.isArray(list) ? list : ((list && list.recordList) || []);
        if (!arr.length && Array.isArray(data)) arr = data;
      } catch (_) {}
      if (arr.length) { PROVIDER = pv; return arr; }
      if (!i) fallback = arr;
    }
    return fallback;
  }
  async function fetchStudyRate(learningId, sourceId, pref) {
    const list0 = providerList(pref);
    let best = 0;
    for (const pv of list0) {
      let num = 0;
      try {
        const data = await rmsPost('/tbc-rms/record/getStudyRate', recPayload(learningId, sourceId, null, pv));
        const rate = unwrap(data);
        num = Number(rate != null ? rate : (data && data.bizResult != null ? data.bizResult : 0)) || 0;
      } catch (_) {}
      if (num > best) { best = num; if (num > 0) PROVIDER = pv; }
    }
    return best;
  }
  async function syncStudyRecord(learningId, sourceId, pref) {
    let last = null;
    for (const pv of providerList(pref)) {
      try { last = await rmsPost('/tbc-rms/record/syncStudyRecord', recPayload(learningId, sourceId, null, pv)); } catch (_) {}
    }
    return last;
  }
  async function saveStudyLog(courseId) {
    const sid = getElnSessionId();
    const path = '/biz-oim/course/saveStudyLog.do?courseId=' + encodeURIComponent(courseId);
    return httpPost(API_BASE + path, { courseId, providerCorpCode: CORP_CODE }, buildBizOimHeaders(path, sid));
  }
  async function enterCourseStudy(courseId) {
    const q = new URLSearchParams({ courseId: String(courseId || ''), studyType: 'STUDY', courseType: 'NEW_COURSE_CENTER' });
    return httpGet(API_BASE + '/els/html/studyCourse/studyCourse.enterCourse.do?' + q.toString());
  }
  async function knowStudyRecord(courseId) {
    return httpPostForm(API_BASE + '/els/html/courseStudyItem/courseStudyItem.knowStudyRecord.do', { courseId: String(courseId || '') });
  }
  async function exitStudyForRms(courseId) {
    const url = API_BASE + '/els/html/courseStudyItem/courseStudyItem.exitStudyForRms.do?courseId=' + encodeURIComponent(String(courseId || ''));
    try { return await httpPost(url, ''); } catch (_) { return null; }
  }
  
  
  
  
  async function ensureEntered(courseId, sourceId) {
    try { await enterCourseStudy(courseId); } catch (_) {}
    try { await knowStudyRecord(courseId); } catch (_) {}
    try { await syncStudyRecord(courseId, sourceId); } catch (_) {}
    try { await saveStudyLog(courseId); } catch (_) {}
  }
  async function writeRecordWhileClose(payload) {
    return rmsPost('/tbc-rms/record/writeRecordWhileClose', payload || {});
  }
  
  async function updateCourseRecord(payload) {
    return rmsPost('/tbc-rms/record/updateCourseRecord', payload || {});
  }
  
  async function pushRecord(payload) {
    let r1 = null, r2 = null, e1 = '', e2 = '';
    try { r1 = await updateCourseRecord(payload); } catch (e) { e1 = String((e && e.message) || e); }
    try { r2 = await writeRecordWhileClose(payload); } catch (e) { e2 = String((e && e.message) || e); }
    const ok = isWriteOk(r1) || isWriteOk(r2);
    return { ok: ok, r1: r1, r2: r2, err: (e1 || e2 || '') };
  }
  
  function buildForgePayload(bg, res, rec) {
    
    const timeToFinish = Number(rec ? rec.timeToFinish : 0) || Number(res.timeToFinish) || 1800;
    
    const currentPosition = Math.max(
      Number(rec ? rec.currentPosition : 0),
      Number((bg.positions && bg.positions[res.resourceId]) || 0),
      timeToFinish
    ) + 5;
    
    const t0 = _resStart[res.resourceId] || (_resStart[res.resourceId] = Date.now());
    const elapsed = Math.max(0, Math.floor((Date.now() - t0) / 1000));
    const base = Number(rec ? rec.currentStudyTime : 0) || 0;
    const currentStudyTime = Math.max(10, Math.min(currentPosition, Math.round(Math.max(base, elapsed) * 0.7 + currentPosition * 0.05)));
    return {
      recordId: rec && rec.recordId ? rec.recordId : null,
      courseId: bg.courseId,
      sourceId: bg.sourceId,
      providerCorpCode: (bg && bg.provider) || PROVIDER || 'default',
      chapterId: res.chapterId || (rec ? rec.chapterId : '') || '',
      resourceId: res.resourceId,
      timeToFinish,
      currentPosition,
      type: res.type || 'video',
      currentStudyTime: currentStudyTime,
      confirmFinish: 1,
      pageIndex: 0,
    };
  }
  async function syncElsCourseStatusOnce(learningId, sourceId, stageId) {
    if (stageId) { try { await nmsPostRaw('/nms/html/courseStudy/checkUserScoInitComplete.do', { courseId: learningId, currentStageId: stageId }); } catch (_) {} }
    try { await enterCourseStudy(learningId); } catch (_) {}
    try { await knowStudyRecord(learningId); } catch (_) {}
    try { await syncStudyRecord(learningId, sourceId); } catch (_) {}
    try { await saveStudyLog(learningId); } catch (_) {}
  }
  async function finalizeCoursePlatformStatus(bg) {
    if (!bg || !bg.courseId) return;
    const learningId = bg.courseId, sourceId = bg.sourceId;
    const stageId = String((bg.projectCtx && bg.projectCtx.stageId) || '').trim();
    L('↻ 《' + (bg.courseName || '课程') + '》同步平台完成状态…');
    await syncElsCourseStatusOnce(learningId, sourceId, stageId);
    await sleep(800);
    await syncElsCourseStatusOnce(learningId, sourceId, stageId);
    const lastRes = bg.resources[bg.resources.length - 1];
    const closePayload = buildForgePayload(bg, lastRes, findRecord(bg.records, (lastRes || {}).resourceId));
    if (closePayload && closePayload.resourceId) {
      try { await pushRecord(closePayload); } catch (_) {}
      await sleep(400);
      try { await pushRecord(closePayload); } catch (_) {}
    }
    
    try {
      const uid = bg.userId || getUserId();
      if (uid) {
        const pm = await postMsgRecordWhileClose(learningId, uid, 3500);
        L('  · iframe 官方通道：' + (pm.ok ? '回执 OK' : pm.reason));
      }
    } catch (_) {}
    try { await exitStudyForRms(learningId); } catch (_) {}
    try { await exitStudyForRms(learningId); } catch (_) {}
    try { await syncStudyRecord(learningId, sourceId, bg.provider); } catch (_) {}
    let kn = null;
    try { kn = await knowStudyRecordEx(learningId); } catch (_) {}
    if (kn && kn.rate > 0) {
      L('  · 页面完成率(knowStudyRecord)=' + kn.rate + '%' + (kn.stepToGetScore ? ' · 下一步=' + kn.stepToGetScore : '') + (kn.rmsNext === '1' ? ' · 可进入下一步' : ''));
    }
    try { bg.studyRate = await fetchStudyRate(learningId, sourceId, bg.provider); } catch (_) {}
    if (kn && kn.rate > 0) bg.studyRate = Math.max(Number(bg.studyRate || 0), kn.rate);
    bg.kn = kn;
  }
  function getResourcePosition(bg, res) {
    const rec = findRecord(bg.records, res.resourceId);
    return Number((bg.positions && bg.positions[res.resourceId]) != null ? bg.positions[res.resourceId] : (rec ? rec.currentPosition : 0));
  }
  function syncProgressFromRecords(bg) {
    bg.positions = bg.positions || {};
    (bg.records || []).forEach(function (rec) {
      if (!rec || !rec.resourceId) return;
      bg.positions[rec.resourceId] = Math.max(Number(rec.currentPosition || 0), Number(bg.positions[rec.resourceId] || 0));
    });
  }
  async function refreshBgProgress(bg) {
    if (!bg || !bg.courseId) return bg;
    bg.records = await fetchStudyRecords(bg.courseId, bg.sourceId, bg.provider);
    bg.studyRate = await fetchStudyRate(bg.courseId, bg.sourceId, bg.provider);
    syncProgressFromRecords(bg);
    return bg;
  }
  async function prepareCourse(learningId, sourceId, courseName, chapterBody) {
    await syncStudyRecord(learningId, sourceId);
    try { await saveStudyLog(learningId); } catch (_) {}
    const resources = await fetchChapters(sourceId, chapterBody);
    const records = await fetchStudyRecords(learningId, sourceId);
    const studyRate = await fetchStudyRate(learningId, sourceId);
    if (!resources.length) throw new Error('该课程无视频章节（请从项目阶段里选择具体课程，不要选培训项目名称）');
    const bg = {
      courseId: learningId, sourceId: sourceId, courseName: courseName || learningId, resources, records, studyRate,
      resIndex: 0, positions: {}, phase: 'study', projectCtx: loadProjectCtx(),
      provider: (chapterBody && chapterBody.providerCorpCode) || PROVIDER || 'default',
    };
    PROVIDER = bg.provider;
    if (!records.length) {
      L('· 首次进入：未查到学习记录，先走官方初始化（enterCourse + 同步记录）…');
      await syncElsCourseStatusOnce(learningId, sourceId, String((bg.projectCtx && bg.projectCtx.stageId) || '').trim());
      bg.records = await fetchStudyRecords(learningId, sourceId, bg.provider);
    }
    await refreshBgProgress(bg);
    return bg;
  }

  
  
  
  function inlineScriptText() {
    let s = '';
    try { document.querySelectorAll('script').forEach(function (sc) { s += '\n' + (sc.textContent || ''); }); } catch (_) {}
    return s;
  }
  function pickVar(src, names) {
    for (const n of names) {
      
      const re = new RegExp('(?:var|let|const|window\\.)\\s*' + n + '\\s*=\\s*[\x27"]([^\x27"]+)[\x27"]', 'i');
      const m = src.match(re);
      if (m && m[1]) return m[1].trim();
    }
    return '';
  }
  let _inlineCache = null;
  function scanInlineVars(force) {
    if (_inlineCache && !force) return _inlineCache;
    let html = '';
    try { html = document.documentElement.outerHTML || ''; } catch (_) {}
    const src = inlineScriptText() + '\n' + html;
    const v = {
      courseId: pickVar(src, ['rmsCourseId', 'courseId']) || getUrlCourseId(),
      userId: pickVar(src, ['userId', 'userid', 'currentUserId']) || '',
      corpCode: pickVar(src, ['corpCode']) || CORP_CODE,
      courseTitle: pickVar(src, ['courseTitle']) || (document.title || '').trim(),
      stepRate: pickVar(src, ['stepRate']) || '',
      elsSign: (src.match(/elsSign=([^&\x27"\s]+)/) || [])[1] || '',
      elnSessionId: (src.match(/eln_session_id=([^&\x27"\s]+)/) || [])[1] || getElnSessionId(),
    };
    if (v.courseTitle) v.courseTitle = v.courseTitle.replace(/\s+/g, ' ').trim();
    _inlineCache = v;
    return v;
  }
  function getUserId() {
    const v = scanInlineVars();
    return v.userId || (function () {
      const m = (document.documentElement.outerHTML || '').match(/userId[\x27"]?\s*[:=]\s*[\x27"]([0-9a-fA-F]{16,})[\x27"]/);
      return m ? m[1] : '';
    })();
  }

  
  
  
  
  function postMsgRecordWhileClose(courseId, userId, waitMs) {
    return new Promise(function (resolve) {
      const fr = document.getElementById('aliPlayerFrame') || document.querySelector('iframe.url-course-content');
      if (!fr || !fr.contentWindow) { resolve({ ok: false, reason: '未找到 #aliPlayerFrame（需在课程学习/播放页）' }); return; }
      if (!courseId || !userId) { resolve({ ok: false, reason: '缺少 courseId 或 userId' }); return; }
      const data = JSON.stringify({ action: 'studyRecordWhileClose', courseId: String(courseId), userId: String(userId) });
      let done = false;
      function finish(r) {
        if (done) return; done = true;
        window.removeEventListener('message', onMsg);
        clearTimeout(timer);
        resolve(r);
      }
      function onMsg(res) {
        try {
          let d = res && res.data;
          if (typeof d === 'string') { try { d = JSON.parse(d); } catch (_) { return; } }
          if (d && String(d.courseId) === String(courseId) && String(d.userId) === String(userId)) finish({ ok: true, data: d });
        } catch (_) {}
      }
      const timer = setTimeout(function () { finish({ ok: false, reason: 'iframe 未回执（超时 ' + (waitMs || 3000) + 'ms）' }); }, waitMs || 3000);
      window.addEventListener('message', onMsg);
      try {
        fr.contentWindow.postMessage(data, '*');
        console.log('[cqrl] → iframe postMessage: ' + data);
      } catch (e) { finish({ ok: false, reason: String((e && e.message) || e) }); }
    });
  }

  
  async function knowStudyRecordEx(courseId) {
    let raw = null;
    try { raw = await knowStudyRecord(courseId); } catch (_) { raw = null; }
    const d = (raw && raw.data !== undefined) ? raw.data : raw;
    const rate = Number((d && d.currentStepRate != null) ? d.currentStepRate : (d && d.stepRate) || 0) || 0;
    return {
      raw: d, rate: rate,
      stepToGetScore: (d && d.stepToGetScore) || '',
      rmsNext: (d && d.rmsNext) || '',
      score: (d && d.rmsScore) || '',
      isDone: rate >= 99.5,
    };
  }

  
  function readDomId(names) {
    for (const n of names) {
      const inp = document.querySelector('input[name="' + n + '"],input[id="' + n + '"]');
      if (inp && inp.value) return String(inp.value).trim();
      const meta = document.querySelector('meta[name="' + n + '"]');
      if (meta && meta.content) return String(meta.content).trim();
      try { if (window[n] != null) return String(window[n]); } catch (e) {}
    }
    return '';
  }
  function getUrlCourseId() {
    const m = location.href.match(/courseId=([^&]+)/i);
    return m ? decodeURIComponent(m[1]) : '';
  }
  function digField(obj, key) {
    if (obj == null || typeof obj !== 'object') return '';
    if (Array.isArray(obj)) { for (const x of obj) { const r = digField(x, key); if (r) return r; } return ''; }
    if (obj[key] != null && String(obj[key]).length >= 6) return String(obj[key]);
    for (const k in obj) { if (obj[k] && typeof obj[k] === 'object') { const r = digField(obj[k], key); if (r) return r; } }
    return '';
  }
  
  function parsePlayFrame() {
    const out = { learningId: '', provider: '', sourceId: '', raw: '' };
    let frames = [];
    const main = document.getElementById('aliPlayerFrame') || document.querySelector('iframe.url-course-content');
    if (main) frames.push(main);
    try {
      document.querySelectorAll('iframe').forEach(function (f) { if (frames.indexOf(f) < 0) frames.push(f); });
    } catch (_) {}
    for (const fr of frames) {
      const raw = String(fr.getAttribute('src') || fr.src || '');
      if (!/coursePlay\//i.test(raw)) continue;
      const m = raw.match(/coursePlay\/([^/?#"']+)/i);
      if (!m) continue;
      const seg = m[1];
      let parts = [];
      try { parts = decodeURIComponent(seg).split(/[&?]/).filter(Boolean); } catch (_) {}
      if (parts.length < 3) parts = seg.split(/%26|&/).filter(Boolean);
      if (!out.learningId && parts[0]) { out.learningId = parts[0]; out.raw = decodeURIComponent(seg); }
      if (!out.provider && parts[1]) out.provider = parts[1];
      if (!out.sourceId && parts[2]) out.sourceId = parts[2];
      if (out.sourceId) break;
    }
    return out;
  }
  
  function collectCourseCandidates() {
    const cands = [];
    const push = function (id) { if (id && /^[0-9a-fA-F]{16,}$/.test(id) && cands.indexOf(id) < 0) cands.push(id); };
    const inline = scanInlineVars(true);
    const learningId = getUrlCourseId() || inline.courseId || '';
    const frame = parsePlayFrame();
    if (frame.sourceId) push(frame.sourceId);   
    push(learningId);
    if (frame.learningId) push(frame.learningId);
    for (const n of ['sourceId', 'source_course_id', 'courseSourceId', 'source_id']) {
      const v = readDomId([n]); if (v) push(v);
    }
    const html = document.documentElement.outerHTML;
    let mm;
    const re1 = /(?:courseId|sourceId|sourceCourseId|source_course_id)=([0-9a-fA-F]{16,})/gi;
    while ((mm = re1.exec(html))) push(mm[1]);
    const re2 = /"(?:courseId|sourceId|sourceCourseId)"\s*:\s*"([0-9a-fA-F]{16,})"/gi;
    while ((mm = re2.exec(html))) push(mm[1]);
    const re3 = /coursePlay\/([0-9a-fA-F]{16,})(?:%26[^%"']+)?%26([0-9a-fA-F]{16,})/gi;
    while ((mm = re3.exec(html))) { push(mm[1]); push(mm[2]); }
    return {
      learningId: learningId || frame.learningId || '',
      frame: frame, cands: cands,
      userId: inline.userId, courseTitle: inline.courseTitle,
      stepRate: inline.stepRate, elsSign: inline.elsSign, session: inline.elnSessionId,
    };
  }
  
  function getHashQuery(key) {
    let v = '';
    try { v = new URLSearchParams(location.search).get(key) || ''; } catch (_) {}
    if (v) return v;
    const m = (location.hash || '').match(new RegExp('[?&]' + key + '=([^&#]+)'));
    return m ? decodeURIComponent(m[1]) : '';
  }
  async function courseStudyGet(path, params) {
    const q = new URLSearchParams(Object.assign({ corpCode: getCorpCode(), eln_session_id: getElnSessionId() }, params || {}));
    const r = await httpGet(API_BASE + '/nms/html/courseStudy/' + path + '?' + q.toString());
    return parseJsonData(r.data);
  }
  function toRows(d) {
    const o = unwrap(d);
    if (Array.isArray(o)) return o;
    if (o && Array.isArray(o.rows)) return o.rows;
    if (o && Array.isArray(o.list)) return o.list;
    if (o && Array.isArray(o.data)) return o.data;
    return [];
  }
  function rateOf(v) {
    if (v == null || v === '') return 0;
    if (typeof v === 'number') return v;
    const s = String(v).trim();
    if (/已完成|已通过|done/i.test(s)) return 100;
    const m = s.match(/(\d+(?:\.\d+)?)/);
    return m ? Number(m[1]) : 0;
  }
  
  
  function rowToCourse(row, stageId, ct) {
    const ci = row.courseInfo || row;
    const cid = ci.courseId || row.courseId || '';
    if (!cid) return null;
    return {
      courseId: cid, title: ci.courseTitle || row.courseTitle || '',
      rate: rateOf(row.currentStepRate != null ? row.currentStepRate : row.currentRate),
      stageId: stageId, courseType: ct,
    };
  }
  

  async function discoverCourseId() {
    const info = collectCourseCandidates();
    UI.setCourse(info.courseTitle || '');
    L('· 课程《' + (info.courseTitle || '未知') + '》' + (info.stepRate !== '' ? ' 页面完成率 ' + info.stepRate + '%' : '') +
      (info.userId ? ' · userId ' + info.userId.slice(0, 8) + '…' : ''));
    L('· 播放 iframe：' + (info.frame.raw ? info.frame.raw.slice(0, 90) : '（未找到 coursePlay iframe）'));
    L('· 学习课 ' + (info.learningId || '无') + (info.frame.sourceId ? ' / iframe 解析源课 ' + info.frame.sourceId : ''));
    L('· 候选 id(' + info.cands.length + ')：' + info.cands.slice(0, 8).join(', ') + (info.cands.length > 8 ? '…' : ''));
    
    for (const sid of info.cands) {
      const hit = await tryChapters(sid);
      if (hit) {
        L('✓ 命中源课 ' + sid + '（' + hit.resources.length + ' 个视频，请求体 ' + JSON.stringify(hit.body) + '）');
        return { learningId: info.learningId || sid, sourceId: sid, chapterBody: hit.body, resources: hit.resources, courseTitle: info.courseTitle, userId: info.userId, stepRate: info.stepRate };
      }
    }
    
    if (info.learningId) {
      try {
        const rd = await fetchStudyRecords(info.learningId, info.learningId);
        const sid = digField(rd, 'sourceId') || '';
        if (sid && sid !== info.learningId) {
          const hit = await tryChapters(sid);
          if (hit) {
            L('✓ 由学习记录发现源课 ' + sid + '（' + hit.resources.length + ' 个视频）');
            return { learningId: info.learningId, sourceId: sid, chapterBody: hit.body, resources: hit.resources, courseTitle: info.courseTitle, userId: info.userId, stepRate: info.stepRate };
          }
        }
      } catch (_) {}
      
      const self = await tryChapters(info.learningId);
      if (self) { L('✓ 学习课自身即章节源（' + self.resources.length + ' 个视频）'); return { learningId: info.learningId, sourceId: info.learningId, chapterBody: self.body, resources: self.resources, courseTitle: info.courseTitle, userId: info.userId, stepRate: info.stepRate }; }
    }
    
    L('✗ 所有候选均未能返回视频章节。请确认本页是「具体课程的学习/播放页」（含视频播放器的页面），再点「⚡ 后台效率刷」。');
    return null;
  }

  
  async function refetchProgress(bg) {
    try { bg.records = await fetchStudyRecords(bg.courseId, bg.sourceId, bg.provider); } catch (_) {}
    syncProgressFromRecords(bg);
  }
  
  
  async function gradualWrite(bg, res, rec) {
    const end = Math.max(Number(res.timeToFinish || 0), Number(rec ? rec.timeToFinish : 0) || 0) || 1800;
    const start = Math.max(Number(rec ? rec.currentPosition : 0), 0);
    const steps = 8;
    let lastFresh = rec;
    for (let s = 1; s <= steps; s++) {
      if (stopFlag) break;
      let pos = Math.round(start + (end - start) * (s / steps));
      if (s === steps) pos = end;
      const fresh = findRecord(bg.records, res.resourceId) || lastFresh;
      lastFresh = fresh;
      const p = buildForgePayload(bg, res, fresh);
      p.currentPosition = pos;
      if (s === steps) {
        
        p.currentStudyTime = Math.max(p.currentStudyTime, Math.round(end * 0.9));
        p.confirmFinish = 1;
      } else {
        p.confirmFinish = 0;
      }
      try { await pushRecord(p); } catch (_) {}
      await sleep(1200);
      if (s % 2 === 0) await refetchProgress(bg);
    }
    return true;
  }
  
  async function postMsgChannel(bg, waitMs) {
    const uid = bg.userId || getUserId();
    if (!uid) { L('    · 未取到 userId，跳过 iframe 通道'); return false; }
    try {
      const r = await postMsgRecordWhileClose(bg.courseId, uid, waitMs || 2000);
      if (r.ok) { L('    ✓ iframe 官方通道回执 OK（studyRecordWhileClose）'); return true; }
      L('    · iframe 通道：' + r.reason);
      return false;
    } catch (e) { L('    · iframe 通道异常：' + String((e && e.message) || e)); return false; }
  }
  function resUndone(bg, res) {
    if (!res) return false;
    return !isResourceDone(bg.records, res.resourceId);
  }
  function dumpRecords(bg) {
    try {
      (bg.resources || []).forEach(function (res, i) {
        const rec = findRecord(bg.records, res.resourceId);
        L('    [' + (i + 1) + '] ' + String(res.resourceName || '').slice(0, 22) +
          ' type=' + res.type + ' tf=' + res.timeToFinish + ' | ' +
          (rec ? ('recordId=' + rec.recordId + ' confirm=' + rec.confirmFinish + ' pos=' + rec.currentPosition + '/' + rec.timeToFinish) : '无学习记录'));
      });
    } catch (_) {}
  }

  
  async function brushOneResource(bg, i) {
    const res = bg.resources[i];
    const tag = '  [' + (i + 1) + '/' + bg.resources.length + ']';
    L(tag + ' 写入：' + res.resourceName + '（' + res.timeToFinish + 's）');

    if (!findRecord(bg.records, res.resourceId)) {
      L('    · 无学习记录 → 初始化(进入课程)后再写入…');
      try { await ensureEntered(bg.courseId, bg.sourceId); } catch (_) {}
      await refetchProgress(bg);
    }

    
    let rec = findRecord(bg.records, res.resourceId);
    const r = await withTimeout(pushRecord(buildForgePayload(bg, res, rec)), REQ_TIMEOUT, { ok: false, r1: 'timeout', r2: 'timeout' });
    const anti = (r.r1 && ANTI_CHEAT_RE.test(JSON.stringify(r.r1))) || (r.r2 && ANTI_CHEAT_RE.test(JSON.stringify(r.r2)));
    if (!r.ok) L('    · 直写回执：' + brief(r.r1) + ' | ' + brief(r.r2));
    if (anti) L('    · ⚠ 命中平台防刷（检测到异常学习行为）：直写可能被忽略，将改走渐进 + 官方 iframe 通道');
    await refetchProgress(bg);

    
    if (resUndone(bg, res)) {
      L('    · 渐进式多次上报…');
      try { await withTimeout(gradualWrite(bg, res, findRecord(bg.records, res.resourceId)), 65000, null); } catch (_) {}
      await refetchProgress(bg);
    }

    
    if (resUndone(bg, res)) {
      const ok = await postMsgChannel(bg, 3500);
      if (ok) await refetchProgress(bg);
      
      if (resUndone(bg, res)) {
        L('    · 官方通道未生效，重新进入课程后再次提交…');
        try { await ensureEntered(bg.courseId, bg.sourceId); } catch (_) {}
        await refetchProgress(bg);
        if (resUndone(bg, res)) {
          try { await withTimeout(gradualWrite(bg, res, findRecord(bg.records, res.resourceId)), 65000, null); } catch (_) {}
          await refetchProgress(bg);
        }
      }
    }

    
    
    if (resUndone(bg, res) && anti) {
      for (let t = 1; t <= 2 && resUndone(bg, res) && !stopFlag; t++) {
        const wait = 4000 * t;
        L('    · 防刷软拦截，退避 ' + (wait / 1000) + 's 后重试官方 iframe 通道（第 ' + t + ' 次）…');
        await sleep(wait);
        try { await ensureEntered(bg.courseId, bg.sourceId); } catch (_) {}
        await refetchProgress(bg);
        await postMsgChannel(bg, 4000);
        await refetchProgress(bg);
      }
    }

    const done = !resUndone(bg, res);
    L(done ? (tag + ' ✓ 已完成：' + res.resourceName) : (tag + ' ⚠ 本轮未生效：' + res.resourceName));
    return done;
  }

  
  async function brushCourse(disc, courseName, opts) {
    opts = opts || {};
    const maxAttempts = opts.attempts || 3;
    const deadline = Date.now() + Number(opts.budgetMs || 150000);
    const bg = await prepareCourse(disc.learningId, disc.sourceId, courseName || disc.courseTitle || '', disc.chapterBody);
    bg.userId = disc.userId || getUserId() || '';
    if (disc.stageId) bg.projectCtx = Object.assign({}, bg.projectCtx || {}, { stageId: disc.stageId });
    if (bg.userId) L('· userId ' + bg.userId.slice(0, 8) + '…（官方 iframe 通道可用）');

    let rate = Number(bg.studyRate || 0);
    const undoneCnt = bg.resources.filter(function (r) { return resUndone(bg, r); }).length;
    L('· 《' + (bg.courseName || '课程') + '》共 ' + bg.resources.length + ' 个视频，未完成 ' + undoneCnt + ' 个，平台完成率 ' + rate + '%');
    UI.setStats(bg.resources.length - undoneCnt, bg.resources.length);
    UI.setRealRate(rate);

    if (rate >= 99.5) {
      L('  ✓ 平台已判定 100% 完成，跳过。');
      return { ok: true, rate: rate, name: bg.courseName || '课程', bg: bg };
    }

    let best = rate, noGain = 0;
    for (let attempt = 1; attempt <= maxAttempts; attempt++) {
      if (stopFlag) break;
      if (Date.now() > deadline) { L('  ⏱ 本门课时限到，先处理下一门（稍后可重跑补齐）。'); break; }
      L('  ── 第 ' + attempt + ' 轮 ──');

      let targets = [];
      for (let i = 0; i < bg.resources.length; i++) if (resUndone(bg, bg.resources[i])) targets.push(i);
      if (!targets.length) {
        L('  ⚠ 记录显示 ' + bg.resources.length + ' 个视频都已完成，但平台完成率仍为 ' + best + '% → 按平台为准，强制重推全部视频');
        const added = await expandAllResources(bg);
        if (added) L('  · 补齐被过滤的非视频资源 +' + added + ' 项（文档/测验等也可能计入完成率），共 ' + bg.resources.length + ' 项');
        dumpRecords(bg);
        const alt = await withTimeout(fetchStudyRate(bg.courseId, bg.sourceId, null), REQ_TIMEOUT, 0);
        if (Number(alt || 0) >= 99.5) { best = Number(alt); L('  ✓ 备用通道重读完成率=' + best + '%，判定已完成。'); break; }
        targets = bg.resources.map(function (_, i) { return i; });
      }

      let firstTarget = true;
      for (const i of targets) {
        if (stopFlag || Date.now() > deadline) break;
        UI.setRealRate(best);
        
        if (!firstTarget) await sleep(1200 + Math.floor(Math.random() * 1500));
        firstTarget = false;
        await withTimeout(brushOneResource(bg, i), 90000, false);
        UI.setStats(bg.resources.filter(function (r) { return !resUndone(bg, r); }).length, bg.resources.length);
      }

      await withTimeout(finalizeCoursePlatformStatus(bg), 40000, null);
      const nr = await withTimeout(fetchStudyRate(bg.courseId, bg.sourceId, bg.provider), REQ_TIMEOUT, best);
      const newRate = Math.max(Number(nr || 0), 0);
      bg.studyRate = newRate;
      UI.setRealRate(newRate);
      L('  ↻ 第 ' + attempt + ' 轮结束：完成率 ' + best + '% → ' + newRate + '%');

      if (newRate >= 99.5) { best = newRate; break; }
      if (newRate > best) { best = newRate; noGain = 0; }
      else {
        noGain++;
        L('  · 本轮无提升（' + noGain + ' 次），尝试重新进入课程 + 官方 iframe 通道后重试…');
        try { await ensureEntered(bg.courseId, bg.sourceId); } catch (_) {}
        await refetchProgress(bg);
        try { await postMsgChannel(bg, 3500); } catch (_) {}
        bg.provider = (bg.provider === CORP_CODE) ? 'default' : CORP_CODE;
        PROVIDER = bg.provider;
        try { await syncStudyRecord(bg.courseId, bg.sourceId, bg.provider); } catch (_) {}
        await refetchProgress(bg);
        if (noGain >= 2) { L('  ⏹ 连续 ' + noGain + ' 轮无提升，判定本门课暂时无法推进（多为平台防刷拦截），先跳过（不卡住队列）。'); break; }
      }
      await refetchProgress(bg);
      if (attempt < maxAttempts) await sleep(1200);
    }

    return { ok: best >= 99.5, rate: best, name: bg.courseName || '课程', bg: bg };
  }
  async function startBrush() {
    if (BUSY) { L('⚠ 正在刷课中，请先点「■ 停止」。'); return null; }
    stopFlag = false;
    try { scanInlineVars(true); } catch (_) {}   
    BUSY = true; UI.setStatus('刷课中', '#22d3ee'); UI.setStats(0, 0);
    try {
      const disc = await discoverCourseId();
      if (!disc) {
        L('→ 请在「具体课程的学习/播放页」点击本按钮；或点「🧾 诊断」把信息发我，我据页面结构补充识别。');
        UI.setStatus('识别失败', '#fca5a5'); BUSY = false;
        return { ok: false, rate: 0, name: '识别失败' };
      }
      L('· 学习课 ' + disc.learningId + ' / 源课 ' + disc.sourceId);
      const r = await brushCourse(disc, '', { attempts: 3, budgetMs: 180000 });
      const rate = r.rate, name = r.name;
      L(rate >= 99.5
        ? '✅ 《' + name + '》已完成：getStudyRate=' + rate + '%'
        : '⚠ 《' + name + '》完成率 ' + rate + '%（未达 100%）。可再点一次「⚡ 后台效率刷」；若反复无效请把「🧾 诊断」内容发我。');
      UI.setStatus(rate >= 99.5 ? '完成' : '未完成', rate >= 99.5 ? '#22c55e' : '#fca5a5');
      if (rate >= 99.5) { try { showCompletionModal(name, rate, extractCredit(name)); } catch (_) {} }
      return { ok: rate >= 99.5, rate: rate, name: name };
    } catch (e) {
      L('✗ 异常：' + (e.message || e));
      UI.setStatus('异常', '#fca5a5');
      return { ok: false, rate: 0, name: '异常' };
    } finally {
      BUSY = false;
    }
  }

  

  
  
  function L(msg) {
    UI.log(msg);
    try { console.log('[cqrl] ' + msg); } catch (_) {}
  }
  const UI = {
    root: null, logEl: null, statusEl: null, statsEl: null, rateEl: null, courseEl: null,
    log(m) {
      if (!this.logEl) return;
      const d = document.createElement('div');
      d.textContent = m;
      this.logEl.appendChild(d);
      while (this.logEl.childNodes.length > 500) this.logEl.removeChild(this.logEl.firstChild);
      this.logEl.scrollTop = this.logEl.scrollHeight;
    },
    setStatus(s, c) { if (this.statusEl) { this.statusEl.textContent = s; this.statusEl.style.color = c || '#0f172a'; } },
    setStats(d, t) { if (this.statsEl) this.statsEl.textContent = d + '/' + t; },
    setRealRate(r) { if (this.rateEl) this.rateEl.textContent = (r != null ? r : 0) + '%'; },
    setCourse(name) { if (this.courseEl) { this.courseEl.textContent = name || '—'; this.courseEl.title = name || ''; } },
    copyLog() {
      const txt = this.logEl ? this.logEl.innerText : '';
      try { navigator.clipboard.writeText(txt); L('📋 日志已复制到剪贴板'); } catch (_) { L('📋 复制失败，请手动选择日志文本'); }
    },
  };
  function loadProjectCtx() { try { return JSON.parse(localStorage.getItem('cqrl_project_ctx') || '{}') || {}; } catch (_) { return {}; } }

  function makeDraggable(root, handle, onEnd) {
    let sx = 0, sy = 0, ox = 0, oy = 0, dragging = false;
    handle.style.cursor = 'move';
    handle.addEventListener('mousedown', function (e) {
      dragging = true;
      const rect = root.getBoundingClientRect();
      ox = rect.left; oy = rect.top; sx = e.clientX; sy = e.clientY;
      document.addEventListener('mousemove', move);
      document.addEventListener('mouseup', up);
      e.preventDefault();
    });
    function move(e) {
      if (!dragging) return;
      let nx = ox + (e.clientX - sx), ny = oy + (e.clientY - sy);
      nx = Math.max(0, Math.min(nx, window.innerWidth - root.offsetWidth));
      ny = Math.max(0, Math.min(ny, window.innerHeight - 30));
      root.style.left = nx + 'px'; root.style.top = ny + 'px';
      root.style.right = 'auto'; root.style.bottom = 'auto';
    }
    function up() {
      dragging = false;
      document.removeEventListener('mousemove', move);
      document.removeEventListener('mouseup', up);
      if (typeof onEnd === 'function') { try { onEnd(); } catch (_) {} }
    }
  }

  
  function hookConsole() {
    const orig = { error: console.error, warn: console.warn, info: console.info };
    ['error', 'warn', 'info'].forEach(function (lv) {
      console[lv] = function () {
        try {
          const a = Array.prototype.slice.call(arguments).map(function (x) { return (x && x.message) ? x.message : String(x); }).join(' ');
          if (UI.logEl && a) UI.log('[页:' + lv + '] ' + a.slice(0, 300));
        } catch (_) {}
        orig[lv].apply(console, arguments);
      };
    });
    window.addEventListener('error', function (e) { try { UI.log('[页:error] ' + (e.message || (e.error && e.error.message) || e)); } catch (_) {} });
    window.addEventListener('unhandledrejection', function (e) { try { UI.log('[页:reject] ' + ((e.reason && e.reason.message) || e.reason)); } catch (_) {} });
  }

  
  function dumpAllToConsole() {
    const n = UI.logEl ? UI.logEl.childNodes.length : 0;
    const txt = UI.logEl ? UI.logEl.innerText : '';
    try {
      console.log('%c[cqrl]════ 运行日志导出 · 共 ' + n + ' 行 ════', 'color:#22d3ee;font-weight:700');
      txt.split('\n').forEach(function (line, i) { console.log('[cqrl|' + (i + 1) + '] ' + line); });
      console.log('%c[cqrl]════ 导出结束 ════', 'color:#22d3ee;font-weight:700');
    } catch (_) {}
    L('🖥 已把 ' + n + ' 行日志打印到控制台 → 按 F12 → Console，过滤 [cqrl] 即可查看/复制。');
  }
  
  function collectDiag() {
    let info = null;
    try { info = collectCourseCandidates(); } catch (e) {}
    const lines = [
      '=== cqrl 诊断 v' + VER + ' ===',
      '时间 : ' + new Date().toLocaleString(),
      'URL  : ' + location.href,
      '标题 : ' + (document.title || ''),
      '播放iframe : ' + (info && info.frame && info.frame.raw ? info.frame.raw : '（未找到）'),
      '学习课 : ' + (info && info.learningId ? info.learningId : '（无）'),
      '源课(iframe解析) : ' + (info && info.frame && info.frame.sourceId ? info.frame.sourceId : '（无）'),
      '候选id : ' + (info ? info.cands.join(', ') : '（无）'),
      '课程名 : ' + (info && info.courseTitle ? info.courseTitle : '（无）'),
      'userId : ' + (info && info.userId ? info.userId : '（无）'),
      '会话   : ' + (info && info.session ? info.session : '（无）'),
      'elsSign: ' + (info && info.elsSign ? info.elsSign : '（无）'),
      '页面完成率 : ' + (info && info.stepRate !== '' ? info.stepRate + '%' : '（无）'),
      'provider : ' + (PROVIDER || getFrameProvider() || '（未解析，默认 default）'),
      '上报接口 : updateCourseRecord + writeRecordWhileClose（双通道）',
      'UA   : ' + navigator.userAgent,
      '--- 运行日志 ---',
      UI.logEl ? UI.logEl.innerText : '',
    ];
    return lines.join('\n');
  }

  
  async function refreshRate() {
    if (BUSY) { L('⚠ 正在刷课中，请稍候再查。'); return; }
    let info = null;
    try { info = collectCourseCandidates(); } catch (_) {}
    const lid = info && info.learningId;
    if (!lid) { L('✗ 未识别到课程 ID，请在「课程学习/播放页」操作。'); return; }
    UI.setCourse((info && info.courseTitle) || '');
    L('🔄 查询完成率…');
    try {
      const kn = await knowStudyRecordEx(lid);
      const sid = (info.frame && info.frame.sourceId) || lid;
      let rms = 0;
      try { rms = await fetchStudyRate(lid, sid); } catch (_) {}
      const rate = Math.max(Number(kn.rate || 0), Number(rms || 0));
      UI.setRealRate(rate);
      L('· 页面完成率 ' + kn.rate + '% / 接口完成率 ' + rms + '% → ' + rate + '%' +
        (kn.stepToGetScore ? '（下一步 ' + kn.stepToGetScore + '）' : '') +
        (kn.rmsNext === '1' ? ' ✔ 已可进入下一步' : ''));
    } catch (e) { L('✗ 查询失败：' + ((e && e.message) || e)); }
  }

  
  function testChannel() {
    let info = null;
    try { info = collectCourseCandidates(); } catch (_) {}
    const lid = info && info.learningId, uid = (info && info.userId) || getUserId();
    if (!lid) { L('✗ 未识别到课程 ID，请在「课程学习/播放页」点击。'); return; }
    if (!uid) { L('✗ 未取到 userId（本页未内联该变量），官方通道不可用，将只用 HTTP 通道。'); return; }
    L('📡 测试官方通道：courseId=' + lid.slice(0, 8) + '… userId=' + uid.slice(0, 8) + '…');
    postMsgRecordWhileClose(lid, uid, 4000).then(function (r) {
      L(r.ok ? '  ✓ 通道可用（iframe 已回执）→ 刷课时自动作为第二通道/落库回写'
             : '  · 通道无回执：' + r.reason + '（不影响主流程，仍走 HTTP 通道）');
    });
  }

  
  async function probeWrite() {
    let info = null;
    try { info = collectCourseCandidates(); } catch (_) {}
    const lid = (info && info.learningId) || '';
    if (!lid) { L('🧪 自检失败：本页未识别到课程 ID，请在「课程学习/播放页」点「🧪 自检」。'); return; }
    const src = (info && info.frame && info.frame.sourceId) || lid;
    L('🧪 上报自检：courseId=' + lid.slice(0, 8) + '… sourceId=' + src.slice(0, 8) + '…');
    const hit = (await tryChapters(src)) || (await tryChapters(lid));
    const resources = (hit && hit.resources) || [];
    L('  · 章节视频 ' + resources.length + ' 个');
    for (const pv of providerList()) {
      L('  ── providerCorpCode=' + pv + ' ──');
      let recs = [];
      try { recs = await fetchStudyRecords(lid, src, pv); } catch (_) {}
      L('    getStudyRecordList → ' + recs.length + ' 条' + (recs.length ? '，示例 ' + brief(recs[0]) : ''));
      try { L('    syncStudyRecord → ' + brief(await syncStudyRecord(lid, src, pv))); } catch (e) { L('    syncStudyRecord 异常：' + e); }
      try { recs = await fetchStudyRecords(lid, src, pv); } catch (_) {}
      const target = resources[0];
      if (!target) { L('    无视频章节，跳过写入测试'); continue; }
      const rec = findRecord(recs, target.resourceId);
      const total = Number((rec && rec.timeToFinish) || target.timeToFinish || 1800);
      const payload = {
        recordId: rec ? rec.recordId : null,
        courseId: lid, sourceId: src, providerCorpCode: pv,
        chapterId: (rec && rec.chapterId) || target.chapterId || '',
        resourceId: target.resourceId,
        timeToFinish: total,
        currentPosition: total,
        type: (rec && rec.type) || 'video',
        currentStudyTime: total,
        pageIndex: 0,
      };
      let r1 = null, r2 = null;
      try { r1 = await updateCourseRecord(payload); } catch (e) { r1 = 'EX:' + ((e && e.message) || e); }
      L('    updateCourseRecord → ' + brief(r1));
      try { r2 = await writeRecordWhileClose(payload); } catch (e) { r2 = 'EX:' + ((e && e.message) || e); }
      L('    writeRecordWhileClose → ' + brief(r2));
      await sleep(1200);
      const after = await fetchStudyRecords(lid, src, pv);
      const rec2 = findRecord(after, target.resourceId);
      L('    写入后：' + (rec2
        ? ('position=' + rec2.currentPosition + '/' + rec2.timeToFinish + ' confirmFinish=' + rec2.confirmFinish)
        : '（仍无该资源记录 → 该 provider 无效）'));
    }
    L('🧪 自检结束。请把以上输出发我：看哪个 provider 有记录、写入后 position 是否变化。');
  }

  function injectStyles() {
    if (document.getElementById('cqrl-style')) return;
    const css = [
      '#cqrl-panel{position:fixed;z-index:99999;background:rgba(17,22,38,.86);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);color:#e6edf7;font:12px/1.5 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;border:1px solid rgba(120,140,200,.22);border-radius:16px;box-shadow:0 18px 50px rgba(0,0,0,.55),inset 0 0 0 1px rgba(255,255,255,.03);overflow:hidden;display:flex;flex-direction:column;}',
      '#cqrl-panel *{box-sizing:border-box;}',
      '#cqrl-panel .cqrl-head{display:flex;align-items:center;gap:8px;padding:10px 12px;cursor:move;background:linear-gradient(135deg,#6d28d9 0%,#2563eb 55%,#0ea5e9 100%);color:#fff;user-select:none;}',
      '#cqrl-panel .cqrl-title{font-size:13px;font-weight:800;letter-spacing:.3px;white-space:nowrap;}',
      '#cqrl-panel .cqrl-ver{font-size:10px;opacity:.85;background:rgba(255,255,255,.18);padding:1px 7px;border-radius:999px;}',
      '#cqrl-panel .cqrl-head-right{margin-left:auto;display:flex;gap:8px;align-items:center;}',
      '#cqrl-panel .cqrl-status{font-size:11px;font-weight:700;background:rgba(255,255,255,.16);padding:2px 10px;border-radius:999px;}',
      '#cqrl-panel .cqrl-ico-btn{cursor:pointer;font-weight:800;font-size:13px;line-height:1;padding:2px 5px;border-radius:7px;transition:.15s;}',
      '#cqrl-panel .cqrl-ico-btn:hover{background:rgba(255,255,255,.22);}',
      '#cqrl-panel .cqrl-body{padding:11px 12px;flex:0 0 auto;}',
      '#cqrl-panel .cqrl-section{font-size:11px;font-weight:700;color:#94a3b8;margin:10px 0 6px;padding-left:4px;letter-spacing:.3px;border-left:3px solid #22d3ee;padding-left:7px;}',
      '#cqrl-panel .cqrl-section:first-child{margin-top:0;}',
      '#cqrl-panel .cqrl-row{display:flex;gap:8px;margin-bottom:8px;}',
      '#cqrl-panel .cqrl-btn{flex:1;border:0;border-radius:10px;padding:9px 8px;font-weight:700;font-size:12px;cursor:pointer;color:#fff;transition:transform .12s,filter .12s;white-space:nowrap;}',
      '#cqrl-panel .cqrl-btn:hover{transform:translateY(-1px);filter:brightness(1.08);}',
      '#cqrl-panel .cqrl-btn:active{transform:translateY(0);}',
      '#cqrl-panel .cqrl-btn-ghost{flex:1;background:rgba(148,163,184,.16);color:#dbe4f0;border:1px solid rgba(148,163,184,.22);}',
      '#cqrl-panel .cqrl-btn-primary{background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#06283b;box-shadow:0 6px 16px rgba(14,165,233,.35);}',
      '#cqrl-panel .cqrl-btn-stop{background:linear-gradient(135deg,#f87171,#ef4444);box-shadow:0 6px 16px rgba(239,68,68,.3);}',
      '#cqrl-panel .cqrl-btn-batch{background:linear-gradient(135deg,#a78bfa,#7c3aed);box-shadow:0 6px 16px rgba(124,58,237,.32);}',
      '#cqrl-panel .cqrl-meta{display:flex;align-items:center;gap:6px;font-size:11px;color:#94a3b8;margin:8px 0 7px;}',
      '#cqrl-panel .cqrl-course{flex:1;color:#cbd5e1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;}',
      '#cqrl-panel .cqrl-stat{display:flex;gap:10px;align-items:center;font-size:11px;color:#94a3b8;margin-bottom:9px;}',
      '#cqrl-panel .cqrl-pill{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);padding:2px 9px;border-radius:999px;}',
      '#cqrl-panel .cqrl-pill b{color:#e2e8f0;font-weight:700;}',
      '#cqrl-panel .cqrl-pill.rate b{color:#67e8f9;}',
      '#cqrl-panel .cqrl-log{height:160px;overflow:auto;background:rgba(2,6,23,.55);border:1px solid rgba(148,163,184,.14);border-radius:10px;padding:8px;white-space:pre-wrap;word-break:break-all;font-family:Consolas,"Liberation Mono",monospace;font-size:11px;}',
      '#cqrl-panel .cqrl-log div{padding:1px 0;color:#cbd5e1;}',
      '#cqrl-panel .cqrl-tools{display:flex;gap:12px;margin-top:9px;font-size:11px;color:#94a3b8;align-items:center;flex-wrap:wrap;}',
      '#cqrl-panel .cqrl-tools span{cursor:pointer;transition:.15s;}',
      '#cqrl-panel .cqrl-tools span:hover{color:#e2e8f0;}',
      '#cqrl-panel .cqrl-accent{color:#67e8f9;}',
      '#cqrl-panel .cqrl-gold{color:#fbbf24;}',
      '.cqrl-logo{width:18px;height:18px;border-radius:4px;object-fit:contain;flex:0 0 auto;}',
      '#cqrl-panel .cqrl-topbar{display:flex;gap:8px;padding:8px 12px;background:rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.06);}',
      '#cqrl-panel .cqrl-btn-group{background:linear-gradient(135deg,#34d399,#059669);box-shadow:0 6px 16px rgba(5,150,105,.3);}',
      '#cqrl-panel .cqrl-btn-gold{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#3b2406;box-shadow:0 6px 16px rgba(245,158,11,.32);}',
      '#cqrl-panel .cqrl-btn-gold:hover,#cqrl-panel .cqrl-btn-group:hover{filter:brightness(1.08);}',
      '#cqrl-panel .cqrl-resize{position:absolute;right:0;bottom:0;width:16px;height:16px;cursor:nwse-resize;background:linear-gradient(135deg,transparent 50%,rgba(103,232,249,.5) 50%);}',
      '.cqrl-ov{position:fixed;inset:0;z-index:100000;display:none;align-items:center;justify-content:center;background:rgba(2,6,23,.72);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);}',
      '.cqrl-card{width:370px;max-height:86vh;overflow:auto;background:linear-gradient(160deg,#1e293b,#0f172a);border:1px solid rgba(103,232,249,.35);border-radius:18px;padding:22px;color:#e2e8f0;box-shadow:0 24px 70px rgba(0,0,0,.6);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;}',
      '.cqrl-card h3{margin:0 0 12px;font-size:17px;display:flex;align-items:center;justify-content:space-between;color:#67e8f9;}',
      '.cqrl-card h3 .cqrl-close{cursor:pointer;font-size:20px;color:#cbd5e1;line-height:1;}',
      '.cqrl-card h3 .cqrl-close:hover{color:#fff;}',
      '.cqrl-card p{font-size:12px;line-height:1.8;color:#cbd5e1;margin:0 0 8px;}',
      '.cqrl-completion-card{width:320px;text-align:center;padding:26px 22px;background:linear-gradient(160deg,#1e293b,#0f172a);border:1px solid rgba(34,211,238,.45);border-radius:20px;box-shadow:0 24px 70px rgba(0,0,0,.6);}',
      '.cqrl-completion-icon{font-size:42px;margin-bottom:8px;}',
      '.cqrl-completion-card h3{margin:0 0 8px;font-size:16px;color:#e2e8f0;}',
      '.cqrl-completion-title{font-size:15px;font-weight:700;color:#67e8f9;margin-bottom:6px;line-height:1.4;}',
      '.cqrl-completion-rate{font-size:13px;color:#86efac;font-weight:700;margin-bottom:6px;}',
      '.cqrl-completion-credit{font-size:12px;color:#fbbf24;margin-bottom:16px;}',
      '.cqrl-completion-card .cqrl-cta{margin-top:0;background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#06283b;font-weight:800;}',
      '.cqrl-card ol{padding-left:18px;margin:0 0 8px;}',
      '.cqrl-card li{font-size:12px;line-height:1.7;margin-bottom:5px;}',
      '.cqrl-card b{color:#fbbf24;}',
      '.cqrl-cta{display:block;width:100%;margin-top:10px;border:0;border-radius:10px;padding:10px;background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#06283b;font-weight:800;font-size:13px;cursor:pointer;}',
      '.cqrl-cta:hover{filter:brightness(1.08);}',
      '.cqrl-reward-card{position:relative;width:400px;padding:0;border-radius:20px;text-align:center;color:#f5f7fa;overflow:hidden;background:linear-gradient(160deg,#0f2027,#203a43,#2c5364);box-shadow:0 0 32px rgba(245,208,97,.22),0 24px 70px rgba(0,0,0,.6);}',
      '.cqrl-light{position:absolute;inset:0;border-radius:20px;padding:1.5px;background:conic-gradient(from 0deg,#f5d061,#b8860b,#fff3c4,#f5d061,#b8860b,#f5d061);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:cqrl-spin 4s linear infinite;pointer-events:none;}',
      '.cqrl-sheen{position:absolute;top:0;left:-60%;width:60%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.18),transparent);transform:skewX(-18deg);animation:cqrl-sheen 3.6s ease-in-out infinite;pointer-events:none;}',
      '.cqrl-reward-inner{position:relative;padding:24px;}',
      '.cqrl-reward-title{font-size:18px;font-weight:800;color:#ffd700;display:flex;align-items:center;justify-content:space-between;}',
      '.cqrl-reward-title .cqrl-close{cursor:pointer;font-size:20px;color:#cbd5e1;}',
      '.cqrl-reward-sub{font-size:12px;line-height:1.8;color:#dbeafe;margin:10px 0 16px;}',
      '.cqrl-qr-row{display:flex;gap:16px;justify-content:center;}',
      '.cqrl-qr{text-align:center;}',
      '.cqrl-qr img{display:block;width:160px;height:160px;object-fit:contain;background:#fff;padding:8px;border-radius:12px;border:2px solid rgba(255,255,255,.25);}',
      '.cqrl-qr-cap{font-size:12px;margin-top:7px;font-weight:700;}',
      '.cqrl-qr-cap.alipay{color:#7dd3fc;}',
      '.cqrl-qr-cap.wechat{color:#86efac;}',
      '.cqrl-reward-foot{font-size:11px;color:#94a3b8;margin-top:16px;letter-spacing:.5px;}',
      '.cqrl-tut-card{width:360px;}',
      '.cqrl-steps{margin:6px 0 12px;}',
      '.cqrl-step{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;}',
      '.cqrl-num{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#7c3aed);color:#fff;font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center;}',
      '.cqrl-step div{font-size:12px;line-height:1.6;color:#cbd5e1;}',
      '.cqrl-step div b{color:#e2e8f0;}',
      '@keyframes cqrl-spin{to{transform:rotate(360deg);}}',
      '@keyframes cqrl-sheen{0%{left:-60%;}60%,100%{left:120%;}}'
    ].join('');
    const st = document.createElement('style');
    st.id = 'cqrl-style';
    st.textContent = css;
    (document.head || document.documentElement).appendChild(st);
  }

  const REWARD_HTML =
    '<div id="cqrl-reward" class="cqrl-ov">' +
      '<div class="cqrl-reward-card">' +
        '<div class="cqrl-light"></div><div class="cqrl-sheen"></div>' +
        '<div class="cqrl-reward-inner">' +
          '<div class="cqrl-reward-title"><img class="cqrl-logo" src="' + FAVICON + '" alt=""/>💖 感谢支持作者<span id="cqrl-reward-close" class="cqrl-close">✕</span></div>' +
          '<p class="cqrl-reward-sub">这个工具，是我在工作之余一点点打磨出来的。它替你省下的每一分钟，我都希望真的能帮到你。如果它对你有用，欢迎请我喝杯茶 🍵——你的支持，会让我更有动力把它做得更稳、更好。</p>' +
          '<div class="cqrl-qr-row">' +
            '<div class="cqrl-qr"><img src="https://a1.boltp.com/2026/08/31/6a950ca4a8f05.jpg" alt="支付宝"/><div class="cqrl-qr-cap alipay">支付宝</div></div>' +
            '<div class="cqrl-qr"><img src="https://a1.boltp.com/2026/08/31/6a950ca3723da.jpg" alt="微信"/><div class="cqrl-qr-cap wechat">微信</div></div>' +
          '</div>' +
          '<div class="cqrl-reward-foot">长按识别 · 自愿打赏 · 每一份心意，我都悄悄记在心里，谢谢你 ❤</div>' +
        '</div>' +
      '</div>' +
    '</div>';
  const HELP_HTML =
    '<div id="cqrl-help" class="cqrl-ov">' +
      '<div class="cqrl-card">' +
        '<h3>📖 使用说明 <span id="cqrl-help-close" class="cqrl-close">✕</span></h3>' +
        '<p><b>本工具能做什么</b><br>自动刷完「重庆人社培训网(cqrl.21tb.com)」的课程视频：不真实播放，直连平台接口快速完成进度并同步完成态。</p>' +
        '<p><b>怎么用（半自动）</b></p>' +
        '<ol><li>在「重庆人社培训网」登录后，打开<b>任意一门课程的学习/播放页</b>（地址含 <code>courseStudyItem.learn.do</code>，页面里有视频播放器）。</li><li>点击右侧面板上的「⚡ 后台效率刷」，工具会直连平台接口把本课所有视频进度推满并同步完成态。</li><li>刷课中可随时点「■ 停止」；刷完会弹出「恭喜完成」提示，显示完成率与学分。</li><li>下一门课：再打开它的学习/播放页，重复点「⚡ 后台效率刷」即可。</li></ol>' +
        '<p><b>工具按钮</b><br>· 🧪 自检：真实调用一次进度写入并打印服务器回执，用于定位「完成率始终 0%」。<br>· 🧾 诊断：复制当前页面的诊断信息（URL/课程id/userId/日志）发我排障。<br>· 📡 通道：测试平台官方 iframe 上报通道是否可用。<br>· 🔄 刷新率：向服务器查询当前完成率。</p>' +
        '<p><b>注意事项</b><br>· 课后考试需自行完成。<br>· 平台若有防刷检测，会自动切换慢速/官方通道重试。<br>· 遇到问题点「💬 反馈群」加群交流，或点「🧾 诊断」复制信息反馈。</p>' +
      '</div>' +
    '</div>';
  const TUT_HTML =
    '<div id="cqrl-tut" class="cqrl-ov">' +
      '<div class="cqrl-card cqrl-tut-card">' +
        '<h3>👋 欢迎使用 · 两步上手 <span id="cqrl-tut-close" class="cqrl-close">✕</span></h3>' +
        '<div class="cqrl-steps">' +
          '<div class="cqrl-step"><span class="cqrl-num">1</span><div><b>打开课程学习/播放页</b><br>进入任意一门课程的播放页（地址含 courseStudyItem.learn.do，有视频播放器）。</div></div>' +
          '<div class="cqrl-step"><span class="cqrl-num">2</span><div><b>点「⚡ 后台效率刷」</b><br>工具直连平台接口把本课视频进度推满并同步完成态，刷完弹「恭喜完成」。</div></div>' +
        '</div>' +
        '<p>不真实播放视频、不自动翻页；只刷你当前打开的这一门。点「❓ 使用说明」可随时查看完整教程（当前版本 v' + VER + '）。</p>' +
        '<button id="cqrl-tut-ok" class="cqrl-cta">开始使用 →</button>' +
      '</div>' +
    '</div>';
  const COMPLETION_HTML =
    '<div id="cqrl-completion" class="cqrl-ov">' +
      '<div class="cqrl-card cqrl-completion-card">' +
        '<div class="cqrl-completion-icon">✅</div>' +
        '<h3>恭喜您已经完成课程</h3>' +
        '<div id="cqrl-completion-title" class="cqrl-completion-title">—</div>' +
        '<div id="cqrl-completion-rate" class="cqrl-completion-rate">完成率 100%</div>' +
        '<div id="cqrl-completion-credit" class="cqrl-completion-credit" style="display:none;"></div>' +
        '<button id="cqrl-completion-ok" class="cqrl-cta">确定</button>' +
      '</div>' +
    '</div>';
  function buildOverlays() {
    if (document.getElementById('cqrl-reward')) return;
    const wrap = document.createElement('div');
    wrap.innerHTML = REWARD_HTML + HELP_HTML + TUT_HTML + COMPLETION_HTML;
    while (wrap.firstChild) document.body.appendChild(wrap.firstChild);
  }
  function extractCredit(title) {
    if (!title) return '';
    const norm = function (s) { return String(s || '').replace(/[\s·•·.,，。、:：\-_|｜“”‘’"'']/g, '').toLowerCase(); };
    const nt = norm(title);
    try {
      const cards = document.querySelectorAll('.text-item, .course-card, .course-item, .el-card, .card-item');
      for (const card of cards) {
        const nm = card.querySelector('.item__name, .course-title, .course-name, [class*="title"], h3, h4');
        const t = (nm && (nm.getAttribute('title') || nm.textContent)) || card.textContent || '';
        if (!t) continue;
        const n2 = norm(t);
        if (n2 !== nt && n2.indexOf(nt) < 0 && nt.indexOf(n2) < 0) continue;
        const spans = card.querySelectorAll('.info-num span');
        for (const sp of spans) {
          const txt = (sp.textContent || '').trim();
          if (/学分/.test(txt)) return txt;
        }
      }
    } catch (_) {}
    return '';
  }
  function showCompletionModal(name, rate, credit) {
    const ov = document.getElementById('cqrl-completion');
    if (!ov) return;
    const titleEl = document.getElementById('cqrl-completion-title');
    const rateEl = document.getElementById('cqrl-completion-rate');
    const creditEl = document.getElementById('cqrl-completion-credit');
    if (titleEl) titleEl.textContent = name || '课程';
    if (rateEl) rateEl.textContent = '完成率 ' + (rate || 100) + '%';
    if (creditEl) {
      if (credit) { creditEl.textContent = '您获得 ' + credit + '，' + (credit.replace(/[^0-9.]/g, '') * 1 || 1) + ' 学时！'; creditEl.style.display = 'block'; }
      else { creditEl.style.display = 'none'; }
    }
    ov.style.display = 'flex';
    setTimeout(function () { try { ov.style.display = 'none'; } catch (_) {} }, 4500);
  }
  function maybeShowTutorial() {
    try { if (localStorage.getItem('cqrl_tut_v2') === '1') return; } catch (_) {}
    const t = document.getElementById('cqrl-tut');
    if (t) t.style.display = 'flex';
  }
  function dismissTutorial() {
    try { localStorage.setItem('cqrl_tut_v2', '1'); } catch (_) {}
    const t = document.getElementById('cqrl-tut');
    if (t) t.style.display = 'none';
  }

  function buildPanel() {
    if (window.__cqrl_injected) return;
    if (document.getElementById('cqrl-panel')) { window.__cqrl_injected = 1; return; }
    window.__cqrl_injected = 1;
    let saved = {};
    try { saved = JSON.parse(localStorage.getItem(LS_PANEL) || '{}') || {}; } catch (_) {}

    injectStyles();
    buildOverlays();
    const root = document.createElement('div');
    root.id = 'cqrl-panel';
    root.style.width = (saved.w || 340) + 'px';
    if (saved.left) { root.style.left = saved.left; root.style.top = saved.top; root.style.right = 'auto'; root.style.bottom = 'auto'; }
    else { root.style.right = saved.right || '14px'; root.style.bottom = saved.bottom || '14px'; }

    root.innerHTML =
      '<div id="cqrl-handle" class="cqrl-head">' +
        '<img class="cqrl-logo" src="' + FAVICON + '" alt=""/>' +
        '<span class="cqrl-title">⚡ 重庆专技·自动刷课</span>' +
        '<span class="cqrl-ver">v' + VER + '</span>' +
        '<span class="cqrl-head-right">' +
          '<span id="cqrl-status" class="cqrl-status">就绪</span>' +
          '<span id="cqrl-collapse" class="cqrl-ico-btn" title="展开/收起">▾</span>' +
          '<span id="cqrl-hide" class="cqrl-ico-btn" title="最小化">✕</span>' +
        '</span>' +
      '</div>' +
      '<div class="cqrl-topbar">' +
        '<button id="cqrl-group" class="cqrl-btn cqrl-btn-group" title="加入脚本反馈群，遇到问题随时交流">💬 反馈群</button>' +
        '<button id="cqrl-reward-btn" class="cqrl-btn cqrl-btn-gold" title="打赏支持作者">💖 打赏</button>' +
      '</div>' +
      '<div id="cqrl-body" class="cqrl-body">' +
        '<div class="cqrl-section">⚡ 半自动 · 进入播放页刷本课</div>' +
        '<div class="cqrl-row">' +
          '<button id="cqrl-go" class="cqrl-btn cqrl-btn-primary" title="在你已进入的具体课程学习/播放页（含视频播放器的页面）点此，直连平台接口批量完成本课进度并同步完成态">⚡ 后台效率刷</button>' +
        '</div>' +
        '<div class="cqrl-section">🔧 工具</div>' +
        '<div class="cqrl-row">' +
          '<button id="cqrl-probe" class="cqrl-btn cqrl-btn-ghost" title="上报自检：真实调用一次进度写入接口并打印服务器回执">🧪 自检</button>' +
          '<button id="cqrl-diag" class="cqrl-btn cqrl-btn-ghost" title="复制诊断信息(URL/课程id/userId/日志)，排障用">🧾 诊断</button>' +
        '</div>' +
        '<div class="cqrl-row">' +
          '<button id="cqrl-chan" class="cqrl-btn cqrl-btn-ghost" title="测试官方 iframe 通道(postMessage studyRecordWhileClose)是否可用">📡 通道</button>' +
          '<button id="cqrl-refresh" class="cqrl-btn cqrl-btn-ghost" title="向服务器查询当前完成率">🔄 刷新率</button>' +
        '</div>' +
        '<div class="cqrl-row">' +
          '<button id="cqrl-stop" class="cqrl-btn cqrl-btn-stop" title="立即停止当前刷课">■ 停止</button>' +
        '</div>' +
        '<div class="cqrl-meta">' +
          '<span class="cqrl-k">课程</span>' +
          '<span id="cqrl-course" class="cqrl-course" title="">—</span>' +
        '</div>' +
        '<div class="cqrl-stat">' +
          '<span class="cqrl-pill">进度 <b id="cqrl-stats">0/0</b></span>' +
          '<span class="cqrl-pill rate">完成率 <b id="cqrl-rate">0%</b></span>' +
        '</div>' +
        '<div id="cqrl-log" class="cqrl-log"></div>' +
        '<div class="cqrl-tools">' +
          '<span id="cqrl-help-btn" class="cqrl-accent" title="查看使用说明">❓ 使用说明</span>' +
          '<span id="cqrl-copy" title="复制全部日志到剪贴板" style="margin-left:auto;">📋 复制</span>' +
          '<span id="cqrl-console" title="把日志倾倒到浏览器控制台(F12→Console)">🖥 F12</span>' +
          '<span id="cqrl-clear" title="清空日志">🗑 清空</span>' +
        '</div>' +
      '</div>' +
      '<div id="cqrl-resize" class="cqrl-resize" title="拖动调整面板大小"></div>';
    document.body.appendChild(root);

    UI.root = root;
    UI.logEl = root.querySelector('#cqrl-log');
    UI.statusEl = root.querySelector('#cqrl-status');
    UI.statsEl = root.querySelector('#cqrl-stats');
    UI.rateEl = root.querySelector('#cqrl-rate');
    UI.courseEl = root.querySelector('#cqrl-course');
    const bodyEl = root.querySelector('#cqrl-body');
    const collapseBtn = root.querySelector('#cqrl-collapse');

    const persist = function () {
      try {
        saved.w = root.offsetWidth; saved.logH = UI.logEl.offsetHeight;
        saved.left = root.style.left; saved.top = root.style.top;
        saved.right = root.style.right; saved.bottom = root.style.bottom;
        saved.collapsed = (bodyEl.style.display === 'none') ? '1' : '0';
        localStorage.setItem(LS_PANEL, JSON.stringify(saved));
      } catch (_) {}
    };

    const handleEl = root.querySelector('#cqrl-handle');
    makeDraggable(root, handleEl, persist);
    handleEl.addEventListener('dblclick', function () { collapseBtn.click(); });   

    
    (function () {
      const h = root.querySelector('#cqrl-resize');
      let on = false, sx = 0, sy = 0, w0 = 0, h0 = 0;
      h.addEventListener('mousedown', function (e) {
        on = true; sx = e.clientX; sy = e.clientY; w0 = root.offsetWidth; h0 = UI.logEl.offsetHeight;
        document.addEventListener('mousemove', mv); document.addEventListener('mouseup', up);
        e.preventDefault(); e.stopPropagation();
      });
      function mv(e) {
        if (!on) return;
        root.style.width = Math.max(260, Math.min(620, w0 + (e.clientX - sx))) + 'px';
        UI.logEl.style.height = Math.max(80, Math.min(560, h0 + (e.clientY - sy))) + 'px';
      }
      function up() { on = false; document.removeEventListener('mousemove', mv); document.removeEventListener('mouseup', up); persist(); }
    })();

    root.querySelector('#cqrl-go').addEventListener('click', startBrush);
    root.querySelector('#cqrl-stop').addEventListener('click', function () {
      stopFlag = true; BUSY = false;
      L('■ 已发送停止（本轮结束后停下）');
      UI.setStatus('已停止', '#9ca3af');
    });
    root.querySelector('#cqrl-copy').addEventListener('click', function () { UI.copyLog(); });
    root.querySelector('#cqrl-console').addEventListener('click', dumpAllToConsole);
    root.querySelector('#cqrl-refresh').addEventListener('click', refreshRate);
    root.querySelector('#cqrl-chan').addEventListener('click', testChannel);
    root.querySelector('#cqrl-probe').addEventListener('click', probeWrite);
    root.querySelector('#cqrl-diag').addEventListener('click', function () {
      const d = collectDiag();
      try { navigator.clipboard.writeText(d); L('🧾 诊断信息已复制（含 URL / 学习课 / 源课 / 候选id / 全部日志），可直接发我排障。'); }
      catch (_) { L('🧾 剪贴板不可用，已改为打印到控制台。'); dumpAllToConsole(); }
    });
    root.querySelector('#cqrl-clear').addEventListener('click', function () { if (UI.logEl) UI.logEl.innerHTML = ''; });
    collapseBtn.addEventListener('click', function () {
      const collapsed = bodyEl.style.display === 'none';
      bodyEl.style.display = collapsed ? 'block' : 'none';
      root.querySelector('#cqrl-resize').style.display = collapsed ? 'block' : 'none';
      this.textContent = collapsed ? '▾' : '▸';
      persist();
    });
    if (saved.collapsed === '1') collapseBtn.click();

    
    root.querySelector('#cqrl-hide').addEventListener('click', function () {
      root.style.display = 'none';
      let ball = document.getElementById('cqrl-ball');
      if (!ball) {
        ball = document.createElement('div');
        ball.id = 'cqrl-ball';
        ball.textContent = '⚡';
        ball.style.cssText = 'position:fixed;right:14px;bottom:14px;z-index:99999;width:44px;height:44px;border-radius:50%;' +
          'background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#06283b;font-size:20px;display:flex;align-items:center;' +
          'justify-content:center;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.45);user-select:none;';
        ball.title = '点击展开刷课面板';
        ball.addEventListener('click', function () { root.style.display = 'flex'; ball.style.display = 'none'; });
        document.body.appendChild(ball);
      }
      ball.style.display = 'flex';
    });

    
    function openOv(id) { const el = document.getElementById(id); if (el) el.style.display = 'flex'; }
    function closeOv(id) { const el = document.getElementById(id); if (el) el.style.display = 'none'; }
    document.getElementById('cqrl-reward-btn').addEventListener('click', function () { openOv('cqrl-reward'); });
    document.getElementById('cqrl-group').addEventListener('click', function () {
      window.open('https://qm.qq.com/q/HmejDdd0Ec', '_blank');
    });
    document.getElementById('cqrl-help-btn').addEventListener('click', function () { openOv('cqrl-help'); });
    document.getElementById('cqrl-reward-close').addEventListener('click', function () { closeOv('cqrl-reward'); });
    document.getElementById('cqrl-help-close').addEventListener('click', function () { closeOv('cqrl-help'); });
    document.getElementById('cqrl-reward').addEventListener('click', function (e) { if (e.target === this) closeOv('cqrl-reward'); });
    document.getElementById('cqrl-help').addEventListener('click', function (e) { if (e.target === this) closeOv('cqrl-help'); });
    document.getElementById('cqrl-tut-close').addEventListener('click', dismissTutorial);
    document.getElementById('cqrl-tut-ok').addEventListener('click', dismissTutorial);
    document.getElementById('cqrl-tut').addEventListener('click', function (e) { if (e.target === this) dismissTutorial(); });
    document.getElementById('cqrl-completion-ok').addEventListener('click', function () { closeOv('cqrl-completion'); });
    document.getElementById('cqrl-completion').addEventListener('click', function (e) { if (e.target === this) closeOv('cqrl-completion'); });
    maybeShowTutorial();

    try {
      const iv = scanInlineVars();
      if (iv.courseTitle) UI.setCourse(iv.courseTitle);
      if (iv.userId) L('· 已识别 userId：' + iv.userId.slice(0, 8) + '…（官方 iframe 通道可用，点「📡 通道」可测试）');
    } catch (_) {}
    L('💡 就绪：点「⚡ 后台效率刷」= 直连平台接口批量完成进度并同步完成态，无需真实播放视频。');
    L('· 使用方法：进入任意一门课程的「学习/播放页」（地址含 courseStudyItem.learn.do、页面有视频播放器）→ 点「⚡ 后台效率刷」即可一键完成本课。');
    L('· 双通道：HTTP 直连为主；命中防刷或失败时自动改走官方 iframe 通道(postMessage studyRecordWhileClose)。');
    L('· 标题栏可拖动 / 右下角可缩放 / ✕ 最小化 / 📋复制 / 🖥F12 打到控制台 / 🧾诊断 / 🔄刷新率 / 📡通道 / 🧪自检。');
    L('· 若「完成率」始终 0%：点「🧪 自检」，它会真实调用一次进度写入并打印服务器回执，把结果发我即可定位。');
  }

  function boot() {
    if (document.body) buildPanel();
    else window.addEventListener('DOMContentLoaded', buildPanel);
    try { hookConsole(); } catch (_) {}
  }
  boot();
})();