// ==UserScript==
// @name         中国宝武学习系统-统一学习助手（网络自学+集中培训+自动考试）
// @namespace    https://tampermonkey.net/
// @version      1.1.0
// @description  右键菜单可自定义配色；右上角悬浮按钮，三种模式随意切换。
// @author       令狐不太冲
// @match        *://learn.baowugroup.com/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_notification
// @grant        GM_xmlhttpRequest
// @grant        GM_registerMenuCommand
// @grant        window.close
// @run-at       document-end
// @icon         https://img.mp.sohu.com/q_70,c_zoom,w_640/upload/20170615/da385146ecfa4b26a0d61eb995f5477b_th.jpg
// @license MIT
// ==/UserScript==

(function() {
    'use strict';

    const MODE_STORAGE_KEY = 'baowu_unified_mode';
    const EXAM_CONFIG_KEY = 'baowu_exam_config';
    const SETTINGS_KEY = 'baowu_ui_settings';
    let currentMode = null;
    let modeSelector = null;
    let modeTriggerEl = null;
    let cleanupFunctions = [];

    // ======================== 全局配色设置 ========================
    const DEFAULT_SETTINGS = {
        panelBg: '#121212',
        panelOpacity: 0.95,
        buttonColor: '#1890ff',
        buttonHoverColor: '#40a9ff',
        textColor: '#ffffff',
        accentColor: '#ff3333',
        triggerColor: '#1a1a2e'
    };

    function loadSettings() {
        const saved = GM_getValue(SETTINGS_KEY);
        if (saved) {
            try { return Object.assign({}, DEFAULT_SETTINGS, JSON.parse(saved)); }
            catch (e) {}
        }
        return { ...DEFAULT_SETTINGS };
    }

    function saveSettings(settings) {
        GM_setValue(SETTINGS_KEY, JSON.stringify(settings));
    }

    let appSettings = loadSettings();

    // 注册右键菜单
    GM_registerMenuCommand('⚙️ 设置', openSettingsPanel);

    function openSettingsPanel() {
        const old = document.getElementById('baowu-settings-panel');
        if (old) old.remove();

        const settings = appSettings;
        const panel = document.createElement('div');
        panel.id = 'baowu-settings-panel';
        panel.innerHTML = `
            <div style="position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:9999998;"></div>
            <div style="position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:${settings.panelBg};color:${settings.textColor};padding:25px;border-radius:12px;z-index:9999999;width:420px;max-width:95vw;font-family:'Microsoft YaHei';box-shadow:0 0 30px rgba(0,0,0,0.8);">
                <h3 style="margin:0 0 20px;text-align:center;">🎨 界面配色设置</h3>
                <div class="settings-row" style="margin-bottom:15px;display:flex;align-items:center;">
                    <label style="flex:1;">面板背景色</label>
                    <input type="color" id="set-panelBg" value="${settings.panelBg}" style="width:40px;height:30px;border:none;cursor:pointer;">
                </div>
                <div class="settings-row" style="margin-bottom:15px;display:flex;align-items:center;">
                    <label style="flex:1;">面板透明度</label>
                    <input type="range" id="set-opacity" min="0.5" max="1" step="0.05" value="${settings.panelOpacity}" style="flex:1;margin-left:10px;">
                    <span id="opacity-val" style="width:40px;text-align:center;">${settings.panelOpacity}</span>
                </div>
                <div class="settings-row" style="margin-bottom:15px;display:flex;align-items:center;">
                    <label style="flex:1;">按钮主色</label>
                    <input type="color" id="set-btnColor" value="${settings.buttonColor}" style="width:40px;height:30px;border:none;cursor:pointer;">
                </div>
                <div class="settings-row" style="margin-bottom:15px;display:flex;align-items:center;">
                    <label style="flex:1;">按钮悬停色</label>
                    <input type="color" id="set-btnHover" value="${settings.buttonHoverColor}" style="width:40px;height:30px;border:none;cursor:pointer;">
                </div>
                <div class="settings-row" style="margin-bottom:15px;display:flex;align-items:center;">
                    <label style="flex:1;">文字颜色</label>
                    <input type="color" id="set-textColor" value="${settings.textColor}" style="width:40px;height:30px;border:none;cursor:pointer;">
                </div>
                <div class="settings-row" style="margin-bottom:20px;display:flex;align-items:center;">
                    <label style="flex:1;">强调色</label>
                    <input type="color" id="set-accent" value="${settings.accentColor}" style="width:40px;height:30px;border:none;cursor:pointer;">
                </div>
                <div style="text-align:center;">
                    <button id="save-settings" style="padding:8px 30px;background:${settings.buttonColor};color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px;margin-right:10px;">保存</button>
                    <button id="close-settings" style="padding:8px 30px;background:#666;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px;">关闭</button>
                </div>
            </div>
        `;
        document.body.appendChild(panel);

        const opacitySlider = panel.querySelector('#set-opacity');
        const opacityVal = panel.querySelector('#opacity-val');
        opacitySlider.addEventListener('input', () => {
            opacityVal.textContent = parseFloat(opacitySlider.value).toFixed(2);
        });

        panel.querySelector('#save-settings').addEventListener('click', () => {
            const newSettings = {
                panelBg: panel.querySelector('#set-panelBg').value,
                panelOpacity: parseFloat(opacitySlider.value),
                buttonColor: panel.querySelector('#set-btnColor').value,
                buttonHoverColor: panel.querySelector('#set-btnHover').value,
                textColor: panel.querySelector('#set-textColor').value,
                accentColor: panel.querySelector('#set-accent').value,
                triggerColor: settings.triggerColor
            };
            saveSettings(newSettings);
            appSettings = newSettings;
            applyUISettings(newSettings);
            panel.remove();
            alert('设置已保存，部分颜色需刷新或重新选择模式后完全生效。');
        });

        panel.querySelector('#close-settings').addEventListener('click', () => {
            panel.remove();
        });
    }

    function applyUISettings(s) {
        if (modeTriggerEl) {
            modeTriggerEl.style.background = s.triggerColor;
            modeTriggerEl.style.color = s.textColor;
        }
        const zshPanel = document.getElementById('auto-learning-panel');
        if (zshPanel) {
            zshPanel.style.background = hexToRgba(s.panelBg, s.panelOpacity);
            zshPanel.style.color = s.textColor;
        }
        const netPanel = document.getElementById('baowu-network-panel');
        if (netPanel) {
            netPanel.style.background = hexToRgba(s.panelBg, s.panelOpacity);
            netPanel.style.color = s.textColor;
        }
    }

    function hexToRgba(hex, alpha) {
        const r = parseInt(hex.slice(1,3), 16);
        const g = parseInt(hex.slice(3,5), 16);
        const b = parseInt(hex.slice(5,7), 16);
        return `rgba(${r},${g},${b},${alpha})`;
    }

    // ======================== 右上角浮动按钮 ========================
    function createModeTrigger() {
        if (modeTriggerEl) modeTriggerEl.remove();
        modeTriggerEl = document.createElement('div');
        modeTriggerEl.id = 'baowu-mode-trigger';
        modeTriggerEl.innerHTML = '🎓 助手';
        Object.assign(modeTriggerEl.style, {
            position: 'fixed', top: '10px', right: '10px', zIndex: '999998',
            padding: '6px 12px', background: appSettings.triggerColor,
            color: appSettings.textColor, borderRadius: '8px', cursor: 'pointer',
            fontSize: '14px', fontWeight: 'bold', boxShadow: '0 2px 10px rgba(0,0,0,0.5)',
            fontFamily: 'Microsoft YaHei, sans-serif', transition: 'all 0.3s'
        });
        modeTriggerEl.onmouseenter = () => modeTriggerEl.style.transform = 'scale(1.05)';
        modeTriggerEl.onmouseleave = () => modeTriggerEl.style.transform = 'scale(1)';
        modeTriggerEl.onclick = () => showModeSelector();
        document.body.appendChild(modeTriggerEl);
    }

    function showModeSelector() {
        if (!modeSelector) createModeSelectorPanel();
        if (modeSelector) modeSelector.style.display = 'block';
    }

    function hideModeSelector() {
        if (modeSelector) modeSelector.style.display = 'none';
    }

    function removeModeSelectorAndTrigger() {
        if (modeSelector) { modeSelector.remove(); modeSelector = null; }
        if (modeTriggerEl) { modeTriggerEl.remove(); modeTriggerEl = null; }
    }

    // ======================== 模式选择面板 ========================
    function createModeSelectorPanel() {
        if (modeSelector) modeSelector.remove();
        modeSelector = document.createElement('div');
        modeSelector.id = 'baowu-mode-selector';
        const s = appSettings;
        modeSelector.innerHTML = `
            <div style="position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:${hexToRgba(s.panelBg, s.panelOpacity)};color:${s.textColor};padding:30px;border-radius:16px;z-index:999999;font-family:'Microsoft YaHei',sans-serif;box-shadow:0 20px 60px rgba(0,0,0,0.6);text-align:center;min-width:450px;display:block;">
                <button id="mode-panel-close" style="position:absolute;top:10px;right:10px;background:none;border:none;color:${s.textColor};font-size:20px;cursor:pointer;line-height:1;">✕</button>
                <h2 style="margin:0 0 15px;color:${s.accentColor};">🎓 中国宝武学习助手</h2>
                <p style="font-size:13px;margin-bottom:10px;color:${s.textColor};">请选择运行模式（选择后将自动记住）</p>
                <div style="display:flex;gap:10px;justify-content:center;margin-bottom:15px;flex-wrap:wrap;">
                    <button id="btn-network" style="flex:1;min-width:120px;padding:12px;background:${s.buttonColor};border:none;border-radius:8px;color:white;font-size:14px;cursor:pointer;">🌐 网络自学</button>
                    <button id="btn-zsh" style="flex:1;min-width:120px;padding:12px;background:${s.buttonColor};border:none;border-radius:8px;color:white;font-size:14px;cursor:pointer;">📚 集中培训</button>
                    <button id="btn-exam" style="flex:1;min-width:120px;padding:12px;background:${s.buttonColor};border:none;border-radius:8px;color:white;font-size:14px;cursor:pointer;">🤖 自动考试</button>
                </div>
                <div id="mode-hint" style="font-size:12px;color:#ff6b6b;min-height:18px;margin-bottom:8px;"></div>
                <div style="font-size:11px;color:${s.textColor};line-height:1.5;opacity:0.8;">
                    ⚠️ 网络自学：到“个人中心”-“公开课”随便播放一个视频后，在视频界面开启。【确保'公开课'里面有课程】<br>
                    ⚠️ 集中培训：请先到专题班首页（页面底部能看到4个小卡片课程在一行的页面）<br>
                    ⚠️ 自动考试：需要配置 AI 接口，配置后在考试页面才出现“自动答题按钮”在屏幕右下角，点击右上角红色按钮“退出考试”-切换模式。
                </div>
            </div>
        `;
        document.body.appendChild(modeSelector);

        document.getElementById('mode-panel-close').addEventListener('click', hideModeSelector);

        document.getElementById('btn-network').addEventListener('click', () => {
            if (!checkNetworkMode()) { showModeHint('⚠️ 请先在“个人中心”页面（能看到“完成情况”按钮）再启动网络自学'); return; }
            removeModeSelectorAndTrigger();
            tryStartMode('network');
        });
        document.getElementById('btn-zsh').addEventListener('click', () => {
            if (!checkZshMode()) { showModeHint('⚠️ 请先到达专题班首页或课程学习页再启动集中培训'); return; }
            removeModeSelectorAndTrigger();
            tryStartMode('zsh');
        });
        document.getElementById('btn-exam').addEventListener('click', () => {
            const savedConfig = GM_getValue(EXAM_CONFIG_KEY, null);
            if (savedConfig) {
                if (!confirm('检测到已保存的 AI 配置，是否直接使用？\n\n点击“确定”直接开始考试监控\n点击“取消”重新配置 API')) {
                    GM_setValue(EXAM_CONFIG_KEY, null);
                }
            }
            removeModeSelectorAndTrigger();
            tryStartMode('exam');
        });
    }

    function showModeHint(msg) {
        const hint = document.getElementById('mode-hint');
        if (hint) hint.textContent = msg;
    }

    // ======================== 环境检测 ========================
    function checkNetworkMode() {
        const all = document.querySelectorAll('span, button, div, a');
        for (const el of all) if (el.textContent.trim().replace(/\s+/g, '') === '完成情况' && el.offsetParent) return true;
        return false;
    }
    function checkZshMode() {
        return document.querySelectorAll('.content-item').length > 0 || window.location.hash.includes('courseStudy') || window.location.hash.includes('zoneMore');
    }
    function isZshHomePage() { const hash = window.location.hash; return /^#\/zoneMore\?centerCode=[A-Za-z0-9]+&guid=/.test(hash); }

    // ======================== 模式启动/停止 ========================
    function tryStartMode(mode) {
        if (currentMode === mode) return;
        if (currentMode) { showModeHint('请先停止当前模式'); return; }
        localStorage.setItem(MODE_STORAGE_KEY, mode);
        if (mode === 'network') startNetworkMode();
        else if (mode === 'zsh') startZshMode();
        else if (mode === 'exam') startExamMode();
        currentMode = mode;
    }

    function stopCurrentMode() {
        if (!currentMode) return;
        cleanupFunctions.forEach(fn => { try { fn(); } catch(e) {} });
        cleanupFunctions = [];
        currentMode = null;
        localStorage.removeItem(MODE_STORAGE_KEY);
        createModeTrigger();
    }

    function registerCleanup(fn) { cleanupFunctions.push(fn); }
        // ======================== 网络自学模式 ========================
    function startNetworkMode() {
        const DEFAULT_CONFIG = { checkInterval: 1, playRate: 1.0 };
        let CONFIG = (() => { const saved = localStorage.getItem('baowu_config'); return saved ? JSON.parse(saved) : { ...DEFAULT_CONFIG }; })();
        const saveConfig = () => localStorage.setItem('baowu_config', JSON.stringify(CONFIG));

        const PLAY_BUTTON_SELECTOR = [
            'div[style*="play"], .play-button, [aria-label="播放"], button[title="播放"], [class*="play-icon"], .icon-play',
            'div[class*="circle-play"], .play-circle, [class*="icon-circle-play"], .fa-play-circle, .glyphicon-play-circle',
            'svg path[d*="M"], svg[aria-label="播放"], svg[title="播放"]',
            'div[style*="border-radius:50%"][style*="play"], button[style*="border-radius:50%"][class*="play"]',
            '[data-icon="play-circle"], [class*="video-play-btn"][style*="circle"]',
            '.vjs-big-play-button',
            '.video-control-left .play-btn, div[style*="left:"][style*="bottom:"][class*="play"], [class*="player-control"][class*="play"]:first-child',
            'button[aria-label="播放"][style*="left"], span[class*="play-icon"][style*="bottom"]',
            '.video-player .left-control .play-button'
        ].join(', ');

        const TEXT = { confirm: '确定', nextSection: '播放下一节', later: '稍后回来', refresh: '刷新', finishStatus: '完成情况', learningStatus: '学习中', startLearn: '立即学习', replay: '重新播放' };

        let intervalId, mouseSimulator, videoMonitor, btnMonitor;

        const forceClick = (el) => {
            if (!el) return false;
            try {
                el.dispatchEvent(new MouseEvent('mouseover', { bubbles: true }));
                el.dispatchEvent(new MouseEvent('mousedown', { bubbles: true, button: 0 }));
                el.dispatchEvent(new MouseEvent('mouseup', { bubbles: true, button: 0 }));
                el.dispatchEvent(new MouseEvent('click', { bubbles: true }));
                if (el.tagName === 'SPAN') el.parentElement?.click();
                return true;
            } catch (e) { return false; }
        };

        const clickFinishStatus = () => {
            const all = document.querySelectorAll('span, div, a, button');
            for (const el of all) if (el.textContent.trim().replace(/\s+/g, '') === TEXT.finishStatus && el.offsetParent) return forceClick(el);
            return false;
        };
        const getPassScoreFromFinishDialog = () => {
            const dialog = Array.from(document.querySelectorAll('.el-dialog, .modal, .popup')).find(d => d.textContent.includes('完成情况'));
            if (!dialog) return 80;
            const m = dialog.textContent.match(/合格分数线\s*[:：]\s*(\d+(?:\.\d+)?)/);
            return m ? parseFloat(m[1]) : 80;
        };
        const getScoreInfo = () => {
            const m = document.body.textContent.match(/课程成绩\s*[:：]\s*(\d+(?:\.\d+)?)分/);
            return { score: m ? parseFloat(m[1]) : 0 };
        };
        const closeFinishPopup = () => {
            const btn = document.querySelector('button.el-dialog__headerbtn');
            if (btn) { forceClick(btn); return true; }
            const dialog = Array.from(document.querySelectorAll('.el-dialog, .modal, .popup')).find(d => d.textContent.includes('完成情况'));
            if (dialog) {
                const close = dialog.querySelector('button.el-dialog__headerbtn, .close, [aria-label="关闭"]');
                if (close) { forceClick(close); return true; }
            }
            document.dispatchEvent(new KeyboardEvent('keydown', { key: 'Escape', keyCode: 27, bubbles: true }));
            return false;
        };
        const clickReplay = () => {
            const btn = Array.from(document.querySelectorAll('button, span, div')).find(el => el.textContent.trim() === TEXT.replay && el.offsetParent);
            if (btn) return forceClick(btn);
            playVideo();
            return false;
        };
        const clickTargetStartLearn = () => {
            const blueBtn = Array.from(document.querySelectorAll('button, div, a')).find(el => {
                const bg = getComputedStyle(el).backgroundColor;
                return el.textContent.trim() === TEXT.startLearn && (bg.includes('rgb(0, 102, 204)') || bg.includes('#0066cc') || el.className.includes('el-button--primary'));
            });
            if (blueBtn && forceClick(blueBtn)) return true;
            const anyBtn = Array.from(document.querySelectorAll('button, a, div')).find(el => el.textContent.trim() === TEXT.startLearn && el.offsetParent);
            if (anyBtn) { forceClick(anyBtn); return true; }
            return false;
        };
        const switchLearningCourse = () => {
            const center = [...document.querySelectorAll('*')].find(e => e.textContent.trim() === '个人中心');
            if (center) forceClick(center);
            setTimeout(() => {
                const status = [...document.querySelectorAll('*')].find(e => e.textContent.trim() === '全部状态');
                if (status) forceClick(status);
                setTimeout(() => {
                    const learning = [...document.querySelectorAll('*')].find(e => e.textContent.trim() === TEXT.learningStatus);
                    if (learning) forceClick(learning);
                    setTimeout(clickTargetStartLearn, 8000);
                }, 4000);
            }, 4500);
        };
        const playVideo = () => {
            document.querySelectorAll(PLAY_BUTTON_SELECTOR).forEach(b => { if (b.offsetParent) { forceClick(b); return; } });
            document.querySelectorAll('video').forEach(v => { v.play().catch(() => {}); v.playbackRate = CONFIG.playRate; });
        };

        const startCheck = () => {
            clearInterval(intervalId);
            const run = async () => {
                if (!clickFinishStatus()) return;
                await new Promise(r => setTimeout(r, 4000));
                const refreshBtn = [...document.querySelectorAll('*')].find(e => e.textContent.trim() === TEXT.refresh);
                if (refreshBtn) forceClick(refreshBtn);
                await new Promise(r => setTimeout(r, 2000));
                const passScore = getPassScoreFromFinishDialog();
                const { score } = getScoreInfo();
                closeFinishPopup();
                updatePanelScore(score, passScore);
                updateMiniScore(score, passScore);
                if (score >= passScore) { await new Promise(r => setTimeout(r, 2000)); switchLearningCourse(); }
                else clickReplay();
            };
            setTimeout(run, 6000);
            intervalId = setInterval(run, CONFIG.checkInterval * 60 * 1000);
        };

        const startMonitor = () => {
            videoMonitor = setInterval(() => document.querySelectorAll('video').forEach(v => { v.play().catch(() => {}); v.playbackRate = CONFIG.playRate; }), 2000);
            btnMonitor = setInterval(() => [TEXT.confirm, TEXT.nextSection, TEXT.later].forEach(t => {
                const btn = [...document.querySelectorAll('*')].find(e => e.textContent.trim() === t);
                if (btn) forceClick(btn);
            }), 1000);
        };

        document.addEventListener('visibilitychange', () => { if (!document.hidden) document.querySelectorAll('video').forEach(v => { v.play().catch(() => {}); v.playbackRate = CONFIG.playRate; }); });

        let miniPassEl, miniCurrentEl;
        const createMiniPanel = () => {
            const mini = document.createElement('div');
            mini.id = 'baowu-mini-panel';
            mini.style.cssText = 'position:fixed;top:100px;left:10px;width:90px;background:#111;color:#ffcc00;padding:4px 6px;border-radius:4px;font-size:11px;z-index:999999;text-align:center;';
            mini.innerHTML = '<div>及格线：<span id="miniPass" style="color:#ff3333">80</span></div><div>目前分：<span id="miniCurrent" style="color:#ff3333">0</span></div>';
            document.body.appendChild(mini);
            miniPassEl = mini.querySelector('#miniPass');
            miniCurrentEl = mini.querySelector('#miniCurrent');
        };
        const updateMiniScore = (score, pass) => { if (miniPassEl) miniPassEl.textContent = pass; if (miniCurrentEl) miniCurrentEl.textContent = score; };

        let panel, passScoreEl, currentScoreEl;
        const createPanel = () => {
            panel = document.createElement('div');
            panel.id = 'baowu-network-panel';
            panel.style.cssText = 'position:fixed;top:0;left:-320px;width:320px;height:100vh;background:#121212;z-index:999999;padding:20px;transition:left 0.3s;font-family:Microsoft Yahei;';
            const trigger = document.createElement('div');
            trigger.id = 'baowu-network-trigger';
            trigger.style.cssText = 'position:fixed;top:50%;left:0;width:20px;height:60px;background:#ff3333;border-radius:0 10px 10px 0;cursor:pointer;z-index:999998;transform:translateY(-50%);';
            trigger.innerHTML = '<div style="color:white;font-size:12px;writing-mode:vertical-rl;text-align:center;line-height:60px;">面板</div>';
            panel.innerHTML = `
                <h3 style="color:#ff3333;margin:0 0 10px;font-size:18px;text-align:center;">网络自学助手</h3>
                <div style="color:#ffcc00;font-size:11px;margin-bottom:15px;padding:8px;background:#1e1e1e;border-radius:5px;">⚠️ 请确保已将所有课程<b>添加至个人中心</b></div>
                <div style="margin-bottom:15px;padding:10px;background:#1e1e1e;border-radius:5px;">
                    <div style="color:#fff;font-size:14px;">合格分数线：<span id="passScore" style="color:#ff3333;">80</span> 分</div>
                    <div style="color:#fff;font-size:14px;">当前分数：<span id="currentScore" style="color:#06afe;">0</span> 分</div>
                </div>
                <div style="margin-bottom:15px"><label style="color:#fff;font-size:14px;">检查间隔（分钟）：</label><input id="interval" type="number" value="${CONFIG.checkInterval}" min="1" style="width:100%;padding:8px;background:#1e1e1e;border:1px solid #ff3333;color:white;border-radius:5px;"></div>
                <div style="margin-bottom:20px"><label style="color:#ffff00;font-size:14px;">播放倍数：</label><select id="rate" style="width:100%;padding:8px;background:#1e1e1e;border:1px solid #ff3333;color:white;border-radius:5px;"><option value="0.5">0.5倍</option><option value="1.0" selected>1.0倍</option><option value="1.25">1.25倍</option><option value="1.5">1.5倍</option><option value="2.0">2.0倍</option></select></div>
                <button id="save" style="width:100%;padding:10px;background:#ff3333;color:white;border:none;border-radius:5px;margin-bottom:10px;">保存配置</button>
                <button id="reset" style="width:100%;padding:10px;background:#333;color:#ffcc00;border:1px solid #ff3333;border-radius:5px;margin-bottom:10px;">一键重置</button>
                <button id="closePanel" style="width:100%;padding:10px;background:#666;color:white;border:none;border-radius:5px;">关闭面板</button>
                <button id="stopNetwork" style="width:100%;padding:10px;background:#ff6b6b;color:white;border:none;border-radius:5px;margin-top:10px;">🛑 停止并切换模式</button>
            `;
            document.body.append(panel, trigger);
            trigger.onclick = () => {
                panel.style.left = panel.style.left === '0px' ? '-320px' : '0px';
                trigger.innerHTML = panel.style.left === '0px' ? '<div style="color:white;font-size:12px;writing-mode:vertical-rl;text-align:center;line-height:60px;">收起</div>' : '<div style="color:white;font-size:12px;writing-mode:vertical-rl;text-align:center;line-height:60px;">面板</div>';
            };
            panel.querySelector('#closePanel').onclick = () => { panel.style.left = '-320px'; trigger.innerHTML = '<div style="color:white;font-size:12px;writing-mode:vertical-rl;text-align:center;line-height:60px;">面板</div>'; };
            panel.querySelector('#save').onclick = () => {
                CONFIG.checkInterval = parseInt(panel.querySelector('#interval').value);
                CONFIG.playRate = parseFloat(panel.querySelector('#rate').value);
                saveConfig(); startCheck(); alert('配置已保存！'); panel.style.left = '-320px';
            };
            panel.querySelector('#reset').onclick = () => {
                if (!confirm('确定恢复默认配置？')) return;
                CONFIG = { checkInterval: 1, playRate: 1.0 };
                saveConfig(); startCheck();
                panel.querySelector('#interval').value = 1; panel.querySelector('#rate').value = 1.0;
                alert('已重置'); panel.style.left = '-320px';
            };
            panel.querySelector('#stopNetwork').onclick = stopCurrentMode;
            passScoreEl = panel.querySelector('#passScore');
            currentScoreEl = panel.querySelector('#currentScore');
        };
        const updatePanelScore = (score, pass) => { if (passScoreEl) passScoreEl.textContent = pass; if (currentScoreEl) currentScoreEl.textContent = score; };

        const cleanupNetwork = () => {
            clearInterval(intervalId); clearInterval(videoMonitor); clearInterval(btnMonitor); clearInterval(mouseSimulator);
            ['baowu-mini-panel', 'baowu-network-panel', 'baowu-network-trigger'].forEach(id => { const el = document.getElementById(id); if (el) el.remove(); });
        };
        registerCleanup(cleanupNetwork);

        mouseSimulator = setInterval(() => { document.dispatchEvent(new Event('mousemove')); window.scrollBy(0, 1); window.scrollBy(0, -1); }, 60000);
        createMiniPanel(); createPanel(); startMonitor(); startCheck();
        console.log('✅ 网络自学模式已启动');
    }
        // ======================== 集中培训模式 ========================
    function startZshMode() {
        const CONFIG = {
            PLAYBACK_RATE: 1.25, MUTED: true, COMPLETION_CHECK_INTERVAL: 30000, DEBUG: true,
            STORAGE_KEY: 'auto_learning_state_v9', COURSE_LOG_KEY: 'auto_learning_course_log_v9',
            PAGE_LOAD_WAIT: 3000, PASS_SCORE: 60, LOCK_REFRESH_INTERVAL: 20000, CARD_RETRY_INTERVAL: 1000,
            NAVIGATION_COOLDOWN: 8000, LEARNING_TIMEOUT: 30 * 60 * 1000, SCAN_TIMEOUT: 5 * 60 * 1000,
            PENGUIN_MOVE_INTERVAL: 3000, BUBBLE_INTERVAL_MIN: 300, BUBBLE_INTERVAL_MAX: 700, MAX_BUBBLES_ON_SCREEN: 30, COURSES_PER_PAGE: 4,
            HEARTBEAT_INTERVAL: 10000
        };
        const BUBBLE_COLORS = ['#ff6b6b','#feca57','#48dbfb','#ff9ff3','#54a0ff','#5f27cd','#01a3a4','#f368e0','#ff6348','#7bed9f','#70a1ff','#ffa502','#2ed573','#ff4757','#1e90ff','#ff6b81','#a29bfe','#fd79a8','#00b894','#e056fd'];

        const channel = new BroadcastChannel('baowu_zsh_v2');
        let heartbeatTimer = null;
        function log(...args) { if (CONFIG.DEBUG) console.log('[集中培训]', ...args); if (panel && panel.addLog) panel.addLog(args.join(' ')); }
        function notifyStateChange() { channel.postMessage({ type: 'STATE_CHANGED' }); localStorage.setItem('auto_learning_notify', Date.now().toString()); }
        function getHomeHeartbeat() { const v = localStorage.getItem('baowu_home_heartbeat'); return v ? parseInt(v) : 0; }
        function setHomeHeartbeat() { localStorage.setItem('baowu_home_heartbeat', Date.now().toString()); }

        const CourseLogger = {
            getAllCourses: () => JSON.parse(GM_getValue(CONFIG.COURSE_LOG_KEY, '[]')),
            saveAllCourses: (courses) => { GM_setValue(CONFIG.COURSE_LOG_KEY, JSON.stringify(courses)); notifyStateChange(); },
            updateCourse(courseData) {
                const courses = this.getAllCourses();
                const idx = courses.findIndex(c => c.courseId === courseData.courseId);
                const entry = { courseId: courseData.courseId || '', courseName: courseData.courseName || '未知', status: courseData.status || '未学习', score: courseData.score ?? null, passScore: courseData.passScore || CONFIG.PASS_SCORE, isPassed: courseData.isPassed || false, lastCheckTime: courseData.lastCheckTime || new Date().toISOString(), pageNumber: courseData.pageNumber || 1 };
                if (idx >= 0) courses[idx] = { ...courses[idx], ...entry };
                else courses.push(entry);
                this.saveAllCourses(courses);
            },
            forceResetLearning() { const courses = this.getAllCourses(); let cnt = 0; courses.forEach(c => { if (c.status === '学习中' && !c.isPassed) { c.status = '未学习'; c.lastCheckTime = new Date().toISOString(); cnt++; } }); if (cnt) { this.saveAllCourses(courses); log(`🔄 重置 ${cnt} 门`); } return cnt; },
            recalcPageNumbers() { const courses = this.getAllCourses(); courses.forEach((c,i) => c.pageNumber = Math.floor(i/CONFIG.COURSES_PER_PAGE)+1); this.saveAllCourses(courses); },
            resetStaleLearning() { const courses = this.getAllCourses(); const now = Date.now(); let chg = false; courses.forEach(c => { if (c.status==='学习中' && !c.isPassed && now - new Date(c.lastCheckTime||0).getTime() > CONFIG.LEARNING_TIMEOUT) { c.status='未学习'; c.lastCheckTime=new Date().toISOString(); chg=true; log(`⏰ 超时:${c.courseName}`); } }); if (chg) this.saveAllCourses(courses); return chg; },
            getNextToLearn() { const all = this.getAllCourses(); return [...all.filter(c => c.status==='学习中' && !c.isPassed), ...all.filter(c => c.status==='未学习')].sort((a,b) => (a.pageNumber||1)-(b.pageNumber||1)); },
            getStats() { const all = this.getAllCourses(); return { total: all.length, passed: all.filter(c => c.isPassed).length, learning: all.filter(c => c.status==='学习中' && !c.isPassed).length, notLearned: all.filter(c => c.status==='未学习').length }; },
            isAllDone() { const all = this.getAllCourses(); return all.length>0 && all.every(c => c.isPassed); },
            hasLearningCourse() { return this.getAllCourses().some(c => c.status==='学习中' && !c.isPassed); }
        };

        const SharedState = (() => {
            const data = { currentCourse: '', currentStatus: '空闲', totalCourses: 0, completedCourses: 0, currentScore: 0, passScore: CONFIG.PASS_SCORE, isPassed: false, isRunning: false, homeUrl: '', currentCourseId: null, lastUpdate: Date.now(), isScanning: false, scanStartTime: 0, mode: 'idle', currentPage: 1, totalPages: 1 };
            const load = () => { try { const s = localStorage.getItem(CONFIG.STORAGE_KEY); if (s) Object.assign(data, JSON.parse(s)); } catch(e) {} };
            const save = () => { data.lastUpdate = Date.now(); localStorage.setItem(CONFIG.STORAGE_KEY, JSON.stringify(data)); };
            return { load, save, set: (k,v) => { data[k] = v; save(); }, get: (k) => data[k] };
        })();
        SharedState.load();

        if (isZshHomePage()) { setHomeHeartbeat(); heartbeatTimer = setInterval(setHomeHeartbeat, CONFIG.HEARTBEAT_INTERVAL); }

        const Utils = {
            sleep: ms => new Promise(r => setTimeout(r, ms)),
            forceClick: el => { if (!el) return false; try { el.click(); return true; } catch(e) { return false; } },
            isCourseListPage: () => window.location.hash.includes('zoneMore'),
            isCourseLearningPage: () => window.location.hash.includes('courseStudy'),
            applyPlaySettings: () => document.querySelectorAll('video').forEach(v => { v.playbackRate = CONFIG.PLAYBACK_RATE; if (CONFIG.MUTED) v.muted = true; }),
            findElementByText: (text, selector='button, span, div, a') => Array.from(document.querySelectorAll(selector)).find(el => el.textContent?.trim() === text),
            waitForCourseCard: async function(name, max=12) {
                for (let i=0; i<max; i++) {
                    const items = document.querySelectorAll('.content-item');
                    if (items.length) {
                        for (const item of items) { const n = item.querySelector('.content-name'); if (n && n.textContent.trim() === name) return item; }
                        for (const item of items) { const n = item.querySelector('.content-name'); if (n && n.textContent.trim().includes(name.substring(0,10))) return item; }
                    }
                    await this.sleep(CONFIG.CARD_RETRY_INTERVAL);
                }
                return null;
            },
            tryAutoPlay: async function(retries=5) {
                for (let i=0; i<retries; i++) {
                    const v = document.querySelector('video');
                    if (v) { v.playbackRate = CONFIG.PLAYBACK_RATE; v.muted = CONFIG.MUTED; try { if (v.paused) await v.play(); log('✅ 自动播放'); return true; } catch(e) { const btn = document.querySelector('.xgplayer-play, .play-btn, [class*="play"], .xgplayer-start'); if (btn) this.forceClick(btn); } }
                    await this.sleep(1000);
                }
                return false;
            },
            goHomeOrOpenNew: function() {
                const homeUrl = SharedState.get('homeUrl');
                if (!homeUrl) { log('❌ 未设置首页URL'); return; }
                const lastBeat = getHomeHeartbeat();
                if ((Date.now() - lastBeat) < 15000) {
                    channel.postMessage({ type: 'NAVIGATE', url: homeUrl });
                    log('📢 已通知首页标签刷新');
                    this.tryCloseSelf();
                } else {
                    log('🏠 首页标签不存在，打开新标签');
                    window.open(homeUrl, '_blank');
                    this.tryCloseSelf();
                }
            },
            tryCloseSelf: function() { try { window.close(); if (!window.closed) { const w = window.open('', '_self'); if (w) w.close(); } } catch(e) {} }
        };

        class PageManager {
            static getTotalPages() { const p = document.querySelector('.el-pager'); if (!p) return 1; const nums = p.querySelectorAll('li.number'); return nums.length ? parseInt(nums[nums.length-1].textContent) || 1 : 1; }
            static async goToPage(num) {
                const pager = document.querySelector('.el-pager');
                if (!pager) return false;
                for (const li of pager.querySelectorAll('li.number')) {
                    if (parseInt(li.textContent) === num) { Utils.forceClick(li); await Utils.sleep(CONFIG.PAGE_LOAD_WAIT); return true; }
                }
                return false;
            }
        }

        class ScanManager {
            static async scanAllPages() {
                if (SharedState.get('isScanning')) return;
                if (panel) panel.openPanel();
                SharedState.set('isScanning', true); SharedState.set('mode', 'scanning'); if (panel) panel.updateUI();
                try {
                    const total = PageManager.getTotalPages();
                    const cur = (() => { const a = document.querySelector('.el-pager li.is-active.number'); return a ? parseInt(a.textContent) || 1 : 1; })();
                    log(`📋 扫描开始，共${total}页，当前第${cur}页`);
                    this.scanCurrentPage(cur);
                    for (let p=1; p<=total; p++) {
                        if (p === cur) continue;
                        log(`🔍 翻到第${p}页`);
                        if (!await PageManager.goToPage(p)) { log(`⚠️ 翻页失败`); continue; }
                        await Utils.sleep(1500);
                        this.scanCurrentPage(p);
                        if (panel) panel.updateUI();
                    }
                    await PageManager.goToPage(cur>1?cur:1);
                    const stats = CourseLogger.getStats();
                    SharedState.set('totalCourses', stats.total);
                    SharedState.set('completedCourses', stats.passed);
                    log(`✅ 扫描完成：共${stats.total}门，已完成${stats.passed}门`);
                } finally { SharedState.set('isScanning', false); SharedState.set('mode', 'idle'); if (panel) panel.updateUI(); }
            }
            static scanCurrentPage(pageNum) {
                const items = document.querySelectorAll('.content-item');
                let cnt = 0;
                items.forEach(item => {
                    const nameEl = item.querySelector('.content-name'), statusEl = item.querySelector('.content-status');
                    if (nameEl && statusEl) {
                        const name = nameEl.textContent.trim(), status = statusEl.textContent.trim();
                        CourseLogger.updateCourse({ courseId: name, courseName: name, status: status==='已完成'?'已完成':status, isPassed: status==='已完成', pageNumber: pageNum });
                        cnt++;
                        if (CONFIG.DEBUG) log(`📄 第${pageNum}页 - ${name} (${status==='已完成'?'已完成':status})`);
                    }
                });
                log(`第${pageNum}页扫描完成，发现${cnt}门课程`);
            }
        }

        class HomePageNavigator {
            constructor() { this.isRunning = false; this.lastNavigate = 0; }
            async start() { if (this.isRunning) return; this.isRunning = true; SharedState.set('isRunning', true); SharedState.set('mode', 'learning'); if (panel) panel.updateUI(); log('🚀 导航器启动'); await this.loop(); }
            stop() { this.isRunning = false; SharedState.set('isRunning', false); SharedState.set('mode', 'idle'); if (panel) panel.updateUI(); log('⏹ 导航器停止'); }
            async loop() {
                while (this.isRunning) {
                    if (!Utils.isCourseListPage()) { await Utils.sleep(3000); continue; }
                    if (CourseLogger.isAllDone()) { log('🎉 全部完成'); this.stop(); try { GM_notification({ title: '🎉 完成', text: '所有课程已学习完毕', timeout: 5000 }); } catch(e) {} break; }
                    if (Date.now() - this.lastNavigate < CONFIG.NAVIGATION_COOLDOWN) { await Utils.sleep(2000); continue; }
                    CourseLogger.resetStaleLearning();
                    if (CourseLogger.hasLearningCourse()) { await Utils.sleep(5000); continue; }
                    const toLearn = CourseLogger.getNextToLearn().filter(c => c.status==='未学习');
                    if (!toLearn.length) { await Utils.sleep(5000); continue; }
                    const course = toLearn[0];
                    log(`📚 学习: ${course.courseName} (第${course.pageNumber}页)`);
                    SharedState.set('currentCourse', course.courseName); SharedState.set('currentCourseId', course.courseId);
                    if (course.pageNumber && course.pageNumber !== (() => { const a = document.querySelector('.el-pager li.is-active.number'); return a ? parseInt(a.textContent)||1 : 1; })()) {
                        await PageManager.goToPage(course.pageNumber); await Utils.sleep(2000);
                    }
                    const target = await Utils.waitForCourseCard(course.courseName);
                    if (target) {
                        Utils.forceClick(target.querySelector('.content-name') || target);
                        CourseLogger.updateCourse({ courseId: course.courseId, status: '学习中', lastCheckTime: new Date().toISOString() });
                        this.lastNavigate = Date.now();
                    } else {
                        CourseLogger.updateCourse({ courseId: course.courseId, status: '已完成', isPassed: true, score: CONFIG.PASS_SCORE });
                    }
                    if (panel) panel.updateUI();
                    await Utils.sleep(3000);
                }
            }
        }

        class LearningPageMonitor {
            constructor() { this.checkTimer = null; this.keepAlive = null; this.nextTimer = null; this.nextPlaying = false; this.courseId = SharedState.get('currentCourseId'); }
            start() {
                if (!Utils.isCourseLearningPage()) return;
                log('📱 学习监控启动');
                if (this.courseId) CourseLogger.updateCourse({ courseId: this.courseId, status: '学习中', lastCheckTime: new Date().toISOString() });
                Utils.tryAutoPlay();
                setTimeout(() => this.performCheck(), 8000);
                this.checkTimer = setInterval(() => this.performCheck(), CONFIG.COMPLETION_CHECK_INTERVAL);
                this.keepAlive = setInterval(() => { Utils.applyPlaySettings(); const v = document.querySelector('video'); if (v && v.paused && v.currentTime>0) v.play().catch(()=>{}); }, CONFIG.LOCK_REFRESH_INTERVAL);
                this.nextTimer = setInterval(() => this.clickNextSection(), 5000);
            }
            stop() { clearInterval(this.checkTimer); clearInterval(this.keepAlive); clearInterval(this.nextTimer); }
            async performCheck() {
                if (this.courseId) CourseLogger.updateCourse({ courseId: this.courseId, status: '学习中', lastCheckTime: new Date().toISOString() });
                const btn = Utils.findElementByText('完成情况', 'button') || Array.from(document.querySelectorAll('button')).find(b => b.textContent?.includes('完成情况'));
                if (!btn) return;
                Utils.forceClick(btn); await Utils.sleep(2000);
                const dialog = document.querySelector('.el-dialog, .el-message-box');
                if (!dialog) return;
                const text = dialog.textContent || '';
                let pass = CONFIG.PASS_SCORE, score = null;
                const pm = text.match(/合格分数线\s*[:：]\s*(\d+)/); if (pm) pass = parseInt(pm[1]);
                const sm = text.match(/课程成绩\s*[:：]\s*(\d+)/); if (sm) score = parseInt(sm[1]);
                if (score !== null) {
                    const passed = score >= pass;
                    log(`📊 ${score}/${pass} ${passed?'✅达标':'❌未达标'}`);
                    SharedState.set('currentScore', score); SharedState.set('passScore', pass); SharedState.set('isPassed', passed);
                    CourseLogger.updateCourse({ courseId: this.courseId, status: passed?'已完成':'学习中', score, passScore: pass, isPassed: passed });
                    if (passed) {
                        SharedState.set('completedCourses', SharedState.get('completedCourses')+1);
                        this.stop();
                        setTimeout(() => Utils.goHomeOrOpenNew(), 2000);
                    }
                }
                const closeBtn = document.querySelector('.el-dialog__close'); if (closeBtn) Utils.forceClick(closeBtn);
            }
            clickNextSection() {
                const span = document.querySelector('button.el-button--primary.is-round span');
                if (span && span.textContent.trim()==='播放下一节' && !this.nextPlaying) {
                    const btn = span.closest('button');
                    if (btn && !btn.disabled) {
                        this.nextPlaying = true;
                        Utils.forceClick(btn);
                        setTimeout(() => { Utils.tryAutoPlay(6).finally(() => this.nextPlaying = false); }, 2000);
                    }
                }
            }
        }

        let panel;
        class ControlPanel {
            constructor() {
                this.panel = null; this.trigger = null; this.isOpen = false; this.logMsgs = [];
                this.navigator = new HomePageNavigator();
                this.moveTimer = null; this.bubbleTimer = null; this.hovering = false; this.bubbles = new Set(); this.lastMove = Date.now();
                this.init();
            }
            addLog(msg) {
                this.logMsgs.push({ time: new Date().toLocaleTimeString(), text: msg });
                if (this.logMsgs.length > 100) this.logMsgs.shift();
                const el = document.getElementById('panel-log-list');
                if (el) el.innerHTML = this.logMsgs.slice(-25).reverse().map(m => `<div class="log-item"><span class="log-time">${m.time}</span> ${m.text}</div>`).join('');
            }
            init() {
                document.getElementById('auto-learning-panel')?.remove();
                document.getElementById('auto-learning-trigger')?.remove();
                this.trigger = document.createElement('div');
                this.trigger.id = 'auto-learning-trigger';
                this.trigger.innerHTML = `<div style="position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;">
                    <svg viewBox="0 0 24 24" width="22" height="22" fill="none" stroke="white" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
                        <ellipse cx="12" cy="17" rx="7" ry="4" fill="#2d3436" stroke="white"/>
                        <ellipse cx="12" cy="12" rx="7" ry="6" fill="#2d3436" stroke="white"/>
                        <circle cx="9" cy="11" r="1" fill="white"/>
                        <circle cx="15" cy="11" r="1" fill="white"/>
                        <path d="M8 15 Q12 16 16 15" stroke="orange" stroke-width="2" fill="none"/>
                        <path d="M12 2 L10 6 L14 6 Z" fill="#feca57"/>
                    </svg>
                    <div id="trigger-score" style="font-size:8px;color:#ccc;margin-top:1px;">--</div>
                    <div id="trigger-stats" style="font-size:7px;color:#ccc;margin-top:0px;">--</div>
                </div>`;
                document.body.appendChild(this.trigger);
                this.panel = document.createElement('div');
                this.panel.id = 'auto-learning-panel';
                this.panel.innerHTML = this.getPanelHTML();
                document.body.appendChild(this.panel);
                this.bindEvents();
                this.addStyles();
                setInterval(() => { const box = document.querySelector('.el-message-box, .el-dialog'); if (box && box.style.display!=='none') { const btn = box.querySelector('.el-button--primary'); if (btn) Utils.forceClick(btn); } }, 2000);

                this.autoSetHomeUrl();
                document.addEventListener('mousemove', () => this.lastMove = Date.now());
                this.startPenguinMove();

                channel.onmessage = (e) => {
                    if (e.data?.type === 'STATE_CHANGED') { log('🔔 收到同步'); this.updateUI(); }
                    else if (e.data?.type === 'NAVIGATE' && e.data.url) { log('📢 收到首页导航指令'); window.location.href = e.data.url; }
                };

                if (Utils.isCourseListPage()) { if (SharedState.get('isRunning')) this.navigator.start(); }
                else if (Utils.isCourseLearningPage()) { new LearningPageMonitor().start(); }

                setTimeout(() => this.updateUI(), 2000);
                setInterval(() => this.updateUI(), 3000);

                let hoverTimeout;
                this.trigger.addEventListener('mouseenter', () => { if (Date.now()-this.lastMove < 500) { clearTimeout(hoverTimeout); this.hovering = true; this.stopPenguinMove(); this.openPanel(); } });
                this.trigger.addEventListener('click', () => { clearTimeout(hoverTimeout); this.hovering = true; this.stopPenguinMove(); this.openPanel(); });
                this.panel.addEventListener('mouseenter', () => { clearTimeout(hoverTimeout); this.hovering = true; });
                this.panel.addEventListener('mouseleave', () => { clearTimeout(hoverTimeout); this.hovering = false; hoverTimeout = setTimeout(() => { this.closePanel(); this.startPenguinMove(); }, 500); });
                this.trigger.addEventListener('mouseleave', () => { if (!this.hovering) { clearTimeout(hoverTimeout); hoverTimeout = setTimeout(() => { this.closePanel(); this.startPenguinMove(); }, 300); } });
            }
            autoSetHomeUrl() {
                if (isZshHomePage()) { SharedState.set('homeUrl', window.location.href); log('🏠 自动识别首页'); }
                else log('⚠️ 当前非课程首页格式');
            }
            createBubbleCluster() {
                if (this.hovering || this.bubbles.size >= CONFIG.MAX_BUBBLES_ON_SCREEN) return;
                const rect = this.trigger.getBoundingClientRect();
                const baseX = rect.left + rect.width/2, baseY = rect.top + 5;
                const count = 2 + Math.floor(Math.random() * 3);
                for (let i=0; i<count; i++) {
                    if (this.bubbles.size >= CONFIG.MAX_BUBBLES_ON_SCREEN) break;
                    const bubble = document.createElement('div');
                    bubble.className = 'penguin-bubble';
                    const size = 8 + Math.random() * 12;
                    bubble.style.width = bubble.style.height = size + 'px';
                    bubble.style.background = BUBBLE_COLORS[Math.floor(Math.random() * BUBBLE_COLORS.length)];
                    bubble.style.boxShadow = `0 0 ${size/2}px ${bubble.style.background}`;
                    bubble.style.left = (baseX + (Math.random()-0.5)*30) + 'px';
                    bubble.style.top = (baseY + (Math.random()-0.5)*10) + 'px';
                    document.body.appendChild(bubble);
                    this.bubbles.add(bubble);
                    bubble.addEventListener('animationend', () => { bubble.remove(); this.bubbles.delete(bubble); });
                    setTimeout(() => { if (bubble.parentNode) { bubble.remove(); this.bubbles.delete(bubble); } }, 2500);
                }
            }
            startBubbles() {
                this.stopBubbles();
                const schedule = () => {
                    if (this.hovering) return;
                    const delay = CONFIG.BUBBLE_INTERVAL_MIN + Math.random() * (CONFIG.BUBBLE_INTERVAL_MAX - CONFIG.BUBBLE_INTERVAL_MIN);
                    this.bubbleTimer = setTimeout(() => { this.createBubbleCluster(); schedule(); }, delay);
                };
                schedule();
            }
            stopBubbles() { if (this.bubbleTimer) { clearTimeout(this.bubbleTimer); this.bubbleTimer = null; } this.bubbles.forEach(b => b.remove()); this.bubbles.clear(); }
            startPenguinMove() {
                this.stopPenguinMove();
                this.startBubbles();
                const move = () => {
                    if (this.hovering) return;
                    this.trigger.style.transition = 'left 1.5s ease-in-out, top 1.5s ease-in-out';
                    this.trigger.style.left = Math.random() * (window.innerWidth - 80) + 10 + 'px';
                    this.trigger.style.top = Math.random() * (window.innerHeight - 80) + 10 + 'px';
                };
                move();
                this.moveTimer = setInterval(move, CONFIG.PENGUIN_MOVE_INTERVAL);
            }
            stopPenguinMove() {
                if (this.moveTimer) { clearInterval(this.moveTimer); this.moveTimer = null; }
                this.stopBubbles();
                this.trigger.style.transition = 'none';
                this.trigger.style.left = 'auto'; this.trigger.style.top = '10px'; this.trigger.style.right = '10px';
            }
            getPanelHTML() {
                const stats = CourseLogger.getStats();
                const data = SharedState;
                const isScan = data.get('isScanning'), isRun = data.get('isRunning');
                const homeUrl = data.get('homeUrl') || '';
                const homeStatus = isZshHomePage() ? '' : '<span style="color:#ff6b6b;font-size:10px;">⚠️ 当前不是课程首页</span>';
                return `<div class="panel-header"><span class="panel-title">🎓 集中培训助手</span><button class="panel-close-btn">✕</button></div>
                <div class="panel-body">
                    <div class="panel-section"><div class="section-label">🏠 首页</div><div style="display:flex;"><input id="panel-home-url" value="${homeUrl}" class="panel-input" style="flex:1;"><button id="panel-save-url" class="panel-btn panel-btn-primary">保存</button></div><div id="panel-home-status">${homeStatus}</div></div>
                    <div class="panel-section"><div class="section-label">📊 状态</div><div>课程: <span id="panel-course">${data.get('currentCourse')||'无'}</span></div><div>成绩: <span id="panel-score">${data.get('currentScore')!==null?data.get('currentScore')+'/'+data.get('passScore')+(data.get('isPassed')?' ✅':' ❌'):'--'}</span></div></div>
                    <div class="panel-section"><div class="section-label">📈 进度</div><div class="progress-stats"><div>✅<span id="panel-passed">${stats.passed}</span></div><div>📖<span id="panel-learning">${stats.learning}</span></div><div>📋<span id="panel-pending">${stats.notLearned}</span></div><div>📦<span id="panel-total">${stats.total}</span></div></div><div class="progress-bar-track"><div id="panel-progress" class="progress-bar-fill" style="width:${stats.total>0?Math.round(stats.passed/stats.total*100):0}%"></div></div></div>
                    <div class="panel-section"><div class="section-label">📝 课程</div><div id="panel-course-list" class="history-list">${this.getCourseListHTML()}</div></div>
                    <div class="panel-section" style="display:flex;gap:6px;flex-wrap:wrap;">
                        <button id="panel-scan" class="panel-btn panel-btn-info" ${isScan?'disabled':''}>${isScan?'⏳ 扫描中...':'📋 扫描'}</button>
                        <button id="panel-start" class="panel-btn panel-btn-success" ${isRun?'disabled':''}>${isRun?'⏳ 学习中...':'▶ 开始'}</button>
                        <button id="panel-stop" class="panel-btn panel-btn-danger">⏹ 停止</button>
                        <button id="panel-reset-learning" class="panel-btn panel-btn-primary" style="font-size:9px;">🔄 强制重置</button>
                    </div>
                    <div class="panel-section"><div class="section-label">📋 日志 <button id="panel-export" class="panel-btn panel-btn-sm">导出</button></div><div id="panel-log-list" class="log-list"><div class="log-item">就绪</div></div></div>
                    <button id="stopZsh" class="panel-btn panel-btn-danger" style="margin-top:10px;width:100%;">🛑 停止并切换模式</button>
                </div>`;
            }
            getCourseListHTML() {
                const courses = CourseLogger.getAllCourses();
                if (!courses.length) return '<div class="history-empty">请先扫描</div>';
                return courses.slice(0,30).map(c => {
                    const icon = c.isPassed ? '✅' : c.status==='学习中' ? '📖' : '📋';
                    const color = c.isPassed ? '#00b894' : c.status==='学习中' ? '#fdcb6e' : '#aaa';
                    return `<div class="history-item"><span>${icon}</span><span style="flex:1;">${c.courseName}</span><span style="color:${color};">${c.isPassed?(c.score||'')+'分':c.status}</span></div>`;
                }).join('');
            }
            addStyles() {
                if (document.getElementById('auto-learning-styles')) return;
                const s = document.createElement('style');
                s.id = 'auto-learning-styles';
                s.textContent = `#auto-learning-trigger{position:fixed;top:10px;right:10px;width:52px;height:48px;padding:3px;background:linear-gradient(135deg,#1a1a2e,#16213e);color:#e0e0e0;border-radius:10px;font-size:12px;cursor:pointer;z-index:999998;border:1px solid rgba(255,255,255,0.15);transition:all 0.3s;box-shadow:0 4px 15px rgba(0,0,0,0.3);line-height:1;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center;}#auto-learning-trigger:hover{border-color:rgba(74,158,255,0.5);}#auto-learning-trigger:hover svg{animation:penguinWiggle 0.5s ease-in-out infinite alternate;}@keyframes penguinWiggle{from{transform:rotate(-5deg);}to{transform:rotate(5deg);}}#auto-learning-panel{position:fixed;top:0;right:-400px;width:380px;height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e);color:#e0e0e0;z-index:999999;transition:right 0.35s;overflow-y:auto;padding:10px;font-size:12px;}#auto-learning-panel.open{right:0;}.panel-header{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:10px;}.panel-section{margin-bottom:10px;background:rgba(255,255,255,0.03);border-radius:6px;padding:8px;}.section-label{color:#aaa;font-size:10px;margin-bottom:6px;}.panel-input{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);border-radius:4px;padding:4px 8px;color:#e0e0e0;font-size:11px;flex:1;}.panel-btn{padding:4px 12px;border:none;border-radius:4px;cursor:pointer;font-size:11px;color:#fff;}.panel-btn:disabled{opacity:0.5;}.panel-btn-success{background:#00b894;}.panel-btn-danger{background:#ff6b6b;}.panel-btn-info{background:#0984e3;}.panel-btn-primary{background:#6c5ce7;}.panel-btn-sm{padding:2px 8px;font-size:10px;}.progress-stats{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:4px;font-size:10px;text-align:center;}.progress-bar-track{height:3px;background:rgba(255,255,255,0.1);border-radius:2px;margin-top:4px;}.progress-bar-fill{height:100%;background:#00b894;border-radius:2px;}.history-list{max-height:150px;overflow-y:auto;font-size:10px;}.history-item{display:flex;gap:4px;padding:3px 0;border-bottom:1px solid rgba(255,255,255,0.03);}.history-empty{color:#666;text-align:center;padding:15px;}.log-list{max-height:120px;overflow-y:auto;font-size:10px;color:#aaa;}.log-item{padding:2px 0;border-bottom:1px solid rgba(255,255,255,0.02);}.log-time{color:#666;margin-right:6px;font-size:9px;}.penguin-bubble{position:fixed;border-radius:50%;pointer-events:none;z-index:999997;animation:bubbleFloat 2s ease-out forwards;}@keyframes bubbleFloat{0%{opacity:0.9;transform:translateY(0) scale(0.6);}50%{opacity:0.7;transform:translateY(-40px) scale(1.2);}100%{opacity:0;transform:translateY(-100px) scale(0.3);}}`;
                document.head.appendChild(s);
            }
            bindEvents() {
                this.panel.querySelector('#panel-save-url').addEventListener('click', () => { SharedState.set('homeUrl', this.panel.querySelector('#panel-home-url').value.trim()); this.updateUI(); });
                this.panel.querySelector('#panel-scan').addEventListener('click', () => { if (!SharedState.get('isScanning')) ScanManager.scanAllPages(); });
                this.panel.querySelector('#panel-start').addEventListener('click', () => { CourseLogger.forceResetLearning(); CourseLogger.recalcPageNumbers(); this.navigator.start(); this.updateUI(); });
                this.panel.querySelector('#panel-stop').addEventListener('click', () => {
                    this.navigator.stop();
                    CourseLogger.saveAllCourses([]);
                    log('🗑️ 课程列表已清空');
                    if (isZshHomePage()) {
                        const currentUrl = window.location.href;
                        SharedState.set('homeUrl', currentUrl);
                        log('🏠 已自动保存当前首页地址: ' + currentUrl);
                    } else {
                        log('⚠️ 当前不是课程首页，未保存地址');
                    }
                    this.updateUI();
                });
                this.panel.querySelector('#panel-reset-learning').addEventListener('click', () => { CourseLogger.forceResetLearning(); this.updateUI(); });
                this.panel.querySelector('#panel-export').addEventListener('click', () => { const blob = new Blob([JSON.stringify(CourseLogger.getAllCourses(), null, 2)], {type:'application/json'}); const a = document.createElement('a'); a.href = URL.createObjectURL(blob); a.download = `courses_${new Date().toISOString().slice(0,10)}.json`; a.click(); });
                this.panel.querySelector('.panel-close-btn').addEventListener('click', () => this.closePanel());
                this.panel.querySelector('#stopZsh').addEventListener('click', stopCurrentMode);
            }
            openPanel() { this.isOpen = true; this.panel.classList.add('open'); }
            closePanel() { this.isOpen = false; this.panel.classList.remove('open'); }
            updateUI() {
                SharedState.load();
                const data = SharedState, stats = CourseLogger.getStats();
                document.getElementById('panel-course').textContent = data.get('currentCourse') || '无';
                document.getElementById('panel-score').textContent = data.get('currentScore')!==null ? data.get('currentScore')+'/'+data.get('passScore')+(data.get('isPassed')?' ✅':' ❌') : '--';
                document.getElementById('panel-passed').textContent = stats.passed;
                document.getElementById('panel-learning').textContent = stats.learning;
                document.getElementById('panel-pending').textContent = stats.notLearned;
                document.getElementById('panel-total').textContent = stats.total;
                document.getElementById('panel-progress').style.width = (stats.total>0?Math.round(stats.passed/stats.total*100):0)+'%';
                document.getElementById('panel-course-list').innerHTML = this.getCourseListHTML();
                document.getElementById('panel-scan').disabled = data.get('isScanning');
                document.getElementById('panel-start').disabled = data.get('isRunning');
                const homeStatusEl = document.getElementById('panel-home-status');
                if (homeStatusEl) homeStatusEl.innerHTML = isZshHomePage() ? '' : '<span style="color:#ff6b6b;font-size:10px;">⚠️ 当前不是课程首页</span>';
                const scoreEl = document.getElementById('trigger-score');
                if (scoreEl) {
                    let txt = '--', clr = '#ccc';
                    if (data.get('currentScore')!==null && data.get('passScore')!==null) { txt = `${data.get('currentScore')}/${data.get('passScore')}`; clr = data.get('isPassed')?'#00b894':'#fdcb6e'; }
                    scoreEl.textContent = txt; scoreEl.style.color = clr;
                }
                const statsEl = document.getElementById('trigger-stats');
                if (statsEl) statsEl.innerHTML = `<span style="color:#00b894;">${stats.passed}</span>/<span style="color:#fdcb6e;">${stats.learning}</span>/<span style="color:#ff6b6b;">${stats.notLearned}</span>`;
            }
        }

        function cleanupZsh() {
            if (panel) { panel.navigator.stop(); panel.stopPenguinMove(); document.getElementById('auto-learning-panel')?.remove(); document.getElementById('auto-learning-trigger')?.remove(); document.getElementById('auto-learning-styles')?.remove(); }
            if (heartbeatTimer) clearInterval(heartbeatTimer);
            channel.close();
        }
        registerCleanup(cleanupZsh);
        panel = new ControlPanel();
        log('✅ 集中培训模式已启动');
    }
        // ======================== 自动考试模式 ========================
    function startExamMode() {
        const savedConfig = GM_getValue(EXAM_CONFIG_KEY, null);
        if (savedConfig) {
            activateExamMonitor(savedConfig);
            console.log('✅ 自动考试模式已启动（使用已保存的配置）');
        } else {
            showExamConfigDialog((config) => {
                GM_setValue(EXAM_CONFIG_KEY, config);
                activateExamMonitor(config);
                console.log('✅ 自动考试模式已启动（新配置已保存）');
            });
        }
    }

    function showExamConfigDialog(onSave) {
        const old = document.getElementById('exam-config-dialog');
        if (old) old.remove();

        const dialog = document.createElement('div');
        dialog.id = 'exam-config-dialog';
        dialog.innerHTML = `
            <div style="position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:999998;"></div>
            <div style="position:fixed;top:45%;left:50%;transform:translate(-50%,-50%);background:#1e1e2e;color:#e0e0e0;padding:25px;border-radius:12px;z-index:999999;width:480px;max-width:95vw;font-family:'Microsoft YaHei';">
                <button id="exam-config-close" style="position:absolute;top:10px;right:10px;background:none;border:none;color:#aaa;font-size:20px;cursor:pointer;line-height:1;">✕</button>
                <h3 style="margin:0 0 15px;color:#ffcc00;">🤖 自动考试 - AI 配置</h3>
                <div style="margin-bottom:12px;">
                    <label style="display:block;margin-bottom:4px;">服务商类型</label>
                    <select id="exam-provider" style="width:100%;padding:8px;background:#2d2d3d;border:1px solid #555;color:#fff;border-radius:6px;">
                        <option value="openai">OpenAI 兼容</option>
                        <option value="anthropic">Anthropic Claude</option>
                        <option value="gemini">Google Gemini</option>
                        <option value="dashscope">DashScope 应用</option>
                    </select>
                </div>
                <div style="margin-bottom:12px;">
                    <label style="display:block;margin-bottom:4px;">API 地址</label>
                    <input id="exam-api-url" type="text" value="https://api.deepseek.com/v1/chat/completions" style="width:100%;padding:8px;background:#2d2d3d;border:1px solid #555;color:#fff;border-radius:6px;">
                </div>
                <div style="margin-bottom:12px;">
                    <label style="display:block;margin-bottom:4px;">API Key</label>
                    <input id="exam-api-key" type="password" placeholder="sk-..." style="width:100%;padding:8px;background:#2d2d3d;border:1px solid #555;color:#fff;border-radius:6px;">
                </div>
                <div style="margin-bottom:16px;">
                    <label style="display:block;margin-bottom:4px;">模型名称</label>
                    <input id="exam-model" type="text" value="deepseek-chat" style="width:100%;padding:8px;background:#2d2d3d;border:1px solid #555;color:#fff;border-radius:6px;">
                </div>
                <div style="display:flex;gap:10px;margin-bottom:10px;">
                    <button id="exam-test-btn" style="flex:1;padding:10px;background:#2ecc71;border:none;border-radius:6px;color:white;cursor:pointer;">🔍 测试AI连接</button>
                    <button id="exam-go-btn" style="flex:1;padding:10px;background:#e67e22;border:none;border-radius:6px;color:white;cursor:pointer;">🚀 去答题</button>
                </div>
                <div id="exam-test-result" style="font-size:12px;min-height:20px;color:#aaa;"></div>
            </div>
        `;
        document.body.appendChild(dialog);

        const providerSel = dialog.querySelector('#exam-provider');
        const apiUrlInput = dialog.querySelector('#exam-api-url');
        const apiKeyInput = dialog.querySelector('#exam-api-key');
        const modelInput = dialog.querySelector('#exam-model');
        const testBtn = dialog.querySelector('#exam-test-btn');
        const goBtn = dialog.querySelector('#exam-go-btn');
        const resultDiv = dialog.querySelector('#exam-test-result');
        const closeBtn = dialog.querySelector('#exam-config-close');

        closeBtn.addEventListener('click', () => {
            dialog.remove();
            stopCurrentMode();
        });

        providerSel.addEventListener('change', () => {
            const map = {
                openai: { url: 'https://api.deepseek.com/v1/chat/completions', model: 'deepseek-chat' },
                anthropic: { url: 'https://api.anthropic.com/v1/messages', model: 'claude-3-opus-20240229' },
                gemini: { url: 'https://generativelanguage.googleapis.com/v1beta/models/', model: 'gemini-pro' },
                dashscope: { url: 'https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions', model: 'qwen-plus' }
            };
            const val = providerSel.value;
            if (map[val]) {
                apiUrlInput.value = map[val].url;
                modelInput.value = map[val].model;
            }
        });

        testBtn.addEventListener('click', () => {
            resultDiv.style.color = '#aaa';
            resultDiv.textContent = '测试中...';
            const provider = providerSel.value;
            const apiUrl = apiUrlInput.value.trim();
            const apiKey = apiKeyInput.value.trim();
            const model = modelInput.value.trim();
            if (!apiUrl || !apiKey) { resultDiv.style.color = '#e74c3c'; resultDiv.textContent = '请填写 API 地址和 Key'; return; }

            let headers, payload;
            if (provider === 'openai' || provider === 'dashscope') {
                headers = { 'Content-Type': 'application/json', 'Authorization': `Bearer ${apiKey}` };
                payload = { model, messages: [{ role: 'user', content: 'ping' }], max_tokens: 5 };
            } else if (provider === 'anthropic') {
                headers = { 'Content-Type': 'application/json', 'x-api-key': apiKey, 'anthropic-version': '2023-06-01' };
                payload = { model, messages: [{ role: 'user', content: 'ping' }], max_tokens: 5 };
            } else if (provider === 'gemini') {
                const url = apiUrl + '?key=' + apiKey;
                GM_xmlhttpRequest({
                    method: 'POST',
                    url,
                    headers: { 'Content-Type': 'application/json' },
                    data: JSON.stringify({ contents: [{ parts: [{ text: 'ping' }] }] }),
                    onload: (res) => {
                        if (res.status === 200) { resultDiv.style.color = '#2ecc71'; resultDiv.textContent = '✅ 测试正常，连接成功！'; }
                        else { resultDiv.style.color = '#e74c3c'; resultDiv.textContent = `连接失败 (HTTP ${res.status})`; }
                    },
                    onerror: () => { resultDiv.style.color = '#e74c3c'; resultDiv.textContent = '网络错误'; }
                });
                return;
            }
            GM_xmlhttpRequest({
                method: 'POST',
                url: apiUrl,
                headers,
                data: JSON.stringify(payload),
                onload: (res) => {
                    if (res.status >= 200 && res.status < 300) { resultDiv.style.color = '#2ecc71'; resultDiv.textContent = '✅ 测试正常，连接成功！'; }
                    else {
                        resultDiv.style.color = '#e74c3c';
                        let errMsg = `连接失败 (HTTP ${res.status})`;
                        try { const data = JSON.parse(res.responseText); if (data.error?.message) errMsg += ': ' + data.error.message; } catch(e) {}
                        resultDiv.textContent = errMsg;
                    }
                },
                onerror: () => { resultDiv.style.color = '#e74c3c'; resultDiv.textContent = '网络错误'; }
            });
        });

        goBtn.addEventListener('click', () => {
            const config = {
                provider: providerSel.value,
                apiUrl: apiUrlInput.value.trim(),
                apiKey: apiKeyInput.value.trim(),
                model: modelInput.value.trim()
            };
            if (!config.apiUrl || !config.apiKey) { resultDiv.style.color = '#e74c3c'; resultDiv.textContent = '请完整填写 API 信息'; return; }
            dialog.remove();
            GM_setValue(EXAM_CONFIG_KEY, config);
            onSave(config);
        });
    }

    function activateExamMonitor(config) {
        cleanupExam();
        registerCleanup(cleanupExam);

        const examState = { config, floatingBtn: null, isSolving: false, interval: null, exitBtn: null };

        function addExitButton() {
            if (document.getElementById('exam-exit-btn')) return;
            const btn = document.createElement('button');
            btn.id = 'exam-exit-btn';
            btn.innerText = '🛑 退出考试';
            Object.assign(btn.style, {
                position: 'fixed', top: '10px', right: '10px', zIndex: '999999',
                padding: '8px 12px', backgroundColor: '#ff6b6b', color: '#fff',
                border: 'none', borderRadius: '6px', fontSize: '12px', fontWeight: 'bold',
                cursor: 'pointer', boxShadow: '0 2px 8px rgba(0,0,0,0.3)', fontFamily: 'system-ui, sans-serif'
            });
            btn.onclick = () => { if (confirm('确定退出考试，返回模式选择？')) stopCurrentMode(); };
            document.body.appendChild(btn);
            examState.exitBtn = btn;
        }

        function waitForExamPage() {
            addExitButton();
            const check = () => {
                const questions = document.querySelectorAll('.examination-item-child');
                if (questions.length > 0 && !examState.floatingBtn) addFloatingButton();
                else if (questions.length === 0 && examState.floatingBtn) {
                    examState.floatingBtn.remove();
                    examState.floatingBtn = null;
                }
            };
            examState.interval = setInterval(check, 2000);
        }

        function addFloatingButton() {
            if (document.getElementById('ai-exam-helper-btn')) return;
            const btn = document.createElement('button');
            btn.id = 'ai-exam-helper-btn';
            btn.innerText = '一键AI答题';
            Object.assign(btn.style, {
                position: 'fixed', bottom: '20px', right: '20px', zIndex: '999999',
                padding: '12px 20px', backgroundColor: '#1890ff', color: '#fff',
                border: 'none', borderRadius: '8px', fontSize: '16px', fontWeight: 'bold',
                cursor: 'pointer', boxShadow: '0 2px 8px rgba(0,0,0,0.2)',
                transition: 'all 0.3s', fontFamily: 'system-ui, sans-serif'
            });
            btn.onclick = () => {
                if (examState.isSolving) return;
                examState.isSolving = true;
                btn.innerText = '答题中...';
                btn.style.backgroundColor = '#52c41a';
                btn.disabled = true;
                startAutoSolve(config).finally(() => {
                    examState.isSolving = false;
                    btn.innerText = '一键AI答题';
                    btn.style.backgroundColor = '#1890ff';
                    btn.disabled = false;
                });
            };
            document.body.appendChild(btn);
            examState.floatingBtn = btn;
        }

        async function startAutoSolve(config) {
            try {
                const questions = collectQuestions();
                if (!questions.length) throw new Error('未找到题目');
                const answers = await fetchAnswersFromAI(questions, config);
                await autoAnswer(questions, answers);
                notify('成功完成所有题目！请手动检查并提交。');
            } catch (e) { notify('答题失败: ' + e.message, true); }
        }

        function collectQuestions() {
            const items = document.querySelectorAll('.examination-item-child');
            const questions = [];
            items.forEach((qEl, idx) => {
                const titleEl = qEl.querySelector('.examination-item-child-title .editor-content');
                let title = titleEl ? titleEl.innerText.trim() : qEl.querySelector('.examination-item-child-title')?.innerText.replace(/\s*（\d+分）\s*$/, '').trim() || '';
                const optsContainer = qEl.querySelector('.examination-item-options');
                if (!optsContainer) return;
                const isMulti = optsContainer.querySelector('input[type="checkbox"]') !== null;
                const optionItems = optsContainer.querySelectorAll('.option-item');
                const options = [];
                const letterMap = {};
                optionItems.forEach((item, i) => {
                    const letter = String.fromCharCode(65 + i);
                    const content = item.querySelector('.option-content')?.innerText.trim() || item.innerText.trim();
                    const input = item.querySelector('input');
                    if (input) {
                        options.push({ letter, text: content });
                        letterMap[letter] = { text: content, inputElement: input };
                    }
                });
                if (options.length === 0) return;
                questions.push({ order: idx + 1, element: qEl, title, type: isMulti ? 'multiple' : 'single', options, letterMap });
            });
            return questions;
        }

        function fetchAnswersFromAI(questions, config) {
            return new Promise((resolve, reject) => {
                const examPaper = questions.map(q => {
                    const optText = q.options.map(o => `${o.letter}、${o.text}`).join('\n');
                    return `题目${q.order}: ${q.type==='single'?'【单选】':'【多选】'}\n${q.title}\n选项:\n${optText}`;
                }).join('\n\n');
                const systemPrompt = `你是法学专家，请根据《习近平法治思想学习纲要》回答题目。只返回JSON对象，格式如{"1":"A","2":["B","C"]}`;
                const userMsg = `共${questions.length}题：\n\n${examPaper}`;
                const payload = { model: config.model, messages: [{ role: 'system', content: systemPrompt }, { role: 'user', content: userMsg }], temperature: 0.1, max_tokens: 2000 };

                let headers = { 'Content-Type': 'application/json' };
                if (config.provider === 'openai' || config.provider === 'dashscope') headers['Authorization'] = `Bearer ${config.apiKey}`;
                else if (config.provider === 'anthropic') { headers['x-api-key'] = config.apiKey; headers['anthropic-version'] = '2023-06-01'; }

                GM_xmlhttpRequest({
                    method: 'POST',
                    url: config.apiUrl,
                    headers,
                    data: JSON.stringify(payload),
                    onload: function(res) {
                        try {
                            const data = JSON.parse(res.responseText);
                            let content = '';
                            if (config.provider === 'anthropic') content = data.content[0].text;
                            else if (config.provider === 'gemini') content = data.candidates[0].content.parts[0].text;
                            else content = data.choices[0].message.content;
                            const jsonMatch = content.match(/\{[\s\S]*\}/);
                            if (jsonMatch) resolve(JSON.parse(jsonMatch[0]));
                            else reject(new Error('AI返回格式非JSON'));
                        } catch(e) { reject(new Error('解析AI返回失败: ' + e.message)); }
                    },
                    onerror: () => reject(new Error('网络错误'))
                });
            });
        }

        async function autoAnswer(questions, answersMap) {
            for (let q of questions) {
                const key = q.order.toString();
                let answer = answersMap[key];
                if (!answer) continue;
                if (q.type === 'multiple' && !Array.isArray(answer)) answer = [answer];
                if (q.type === 'single' && Array.isArray(answer)) answer = answer[0];
                const letters = Array.isArray(answer) ? answer : [answer];
                const allInputs = q.element.querySelectorAll('input[type="radio"], input[type="checkbox"]');
                allInputs.forEach(inp => {
                    if (inp.checked) { inp.checked = false; inp.dispatchEvent(new Event('change', { bubbles: true })); }
                });
                letters.forEach(letter => {
                    const target = q.letterMap[letter];
                    if (target && target.inputElement) {
                        target.inputElement.checked = true;
                        target.inputElement.dispatchEvent(new Event('change', { bubbles: true }));
                        if (target.inputElement.type === 'radio') target.inputElement.dispatchEvent(new MouseEvent('click', { bubbles: true }));
                    }
                });
                q.element.scrollIntoView({ behavior: 'smooth', block: 'center' });
                await new Promise(r => setTimeout(r, 400));
            }
        }

        function notify(msg, isError = false) {
            if (typeof GM_notification !== 'undefined') GM_notification({ title: isError ? '考试助手出错' : '考试助手', text: msg, timeout: 3000 });
            else alert(msg);
        }

        waitForExamPage();
    }

    function cleanupExam() {
        const ids = ['ai-exam-helper-btn', 'exam-exit-btn'];
        ids.forEach(id => {
            const el = document.getElementById(id);
            if (el) el.remove();
        });
        if (window._examInterval) clearInterval(window._examInterval);
    }

    // ======================== 初始化 ========================
    function init() {
        const savedMode = localStorage.getItem(MODE_STORAGE_KEY);
        if (savedMode) {
            tryStartMode(savedMode);
            return;
        }
        createModeTrigger();
    }

    if (document.readyState === 'complete') init();
    else window.addEventListener('load', init);
})();