// ==UserScript==
// @name         起点榜单增强
// @namespace    https://github.com/local/qd-rank
// @version      2.8.0
// @description  起点移动端榜单页增强：男生/女生切换、榜单tab、分类/月份筛选、无限滚动加载、点书跳转搜索引擎。右上角图书按钮回起点主站。访问m.qidian.com/rank使用
// @author       you
// @license      MIT
// @match        *://m.qidian.com/rank/*
// @match        *://m.qdmm.com/rank/*
// @run-at       document-idle
// @noframes
// @grant        GM_xmlhttpRequest
// ==/UserScript==

(function () {
  'use strict';

  // 禁用双击缩放
  var _vp = document.querySelector('meta[name="viewport"]');
  if (_vp) _vp.setAttribute('content', 'width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no');

  function initQdRank() {
    'use strict';

    // ---------- 配置 ----------
    const ENGINES = [
      { key: 'quark',   name: '夸克', prefix: 'https://m.quark.cn/s?q=' },
      { key: 'bing',    name: '必应', prefix: 'https://www.bing.com/search?q=' },
      { key: 'sogou',   name: '搜狗', prefix: 'https://www.sogou.com/web?query=' },
      { key: 'toutiao', name: '头条', prefix: 'https://so.toutiao.com/search/?keyword=' },
    ];
    const RANK_TABS = {
      male: [
        ['yuepiao',   '月票榜'],
        ['hotsales',  '畅销榜'],
        ['readindex', '阅读榜'],
        ['newfans',   '书友榜'],
        ['rec',       '推荐榜'],
        ['update',    '更新榜'],
        ['sign',      '签约榜'],
        ['newbook',   '新书榜'],
        ['newauthor', '新人榜'],
      ],
      female: [
        ['yuepiao',   '月票榜'],
        ['hotsales',  '畅销榜'],
        ['readindex', '阅读榜'],
        ['newfans',   '书友榜'],
        ['rec',       '推荐榜'],
        ['update',    '更新榜'],
        ['collect',   '收藏榜'],
        ['free',      '免费榜'],
      ],
    };
    // 从当前 URL 解析出 (tab, catId, month)
    function parseLocation() {
      const m = location.pathname.match(/\/rank\/([a-z]+)(?:\/catid(-?\d+))?(?:\/(\d{6}))?/);
      const site = location.hostname.includes('qdmm') ? 'female' : 'male';
      const tab = m ? m[1] : 'yuepiao';
      const catId = m && m[2] ? m[2] : '-1';
      const month = m && m[3] ? m[3] : new Date().toISOString().slice(0,7).replace('-','');
      return { site, tab, catId, month };
    }
    const state = { ...parseLocation(), engine: localStorage.getItem('qd-rank-engine') || 'quark' };

    // ---------- 样式 ----------
    const style = document.createElement('style');
    style.textContent = `
      /* 屏蔽广告、打开App、原站所有右上角按钮 */
      .y-popup__content--bottom, .y-mask, #app-dl,
      ._openAppText_sm6ke_52, ._openApp_sm6ke_9,
      div[class*="_openApp_"], div[class*="_openAppText_"],
      div[class*="_doubleRight_"], div[class*="_rightCombination_"],
      div[class*="_icon_"], i[class*="y-icon--00145"],
      div[class*="y-bottom-bar"], div[class*="downloadBar"] { display: none !important; }

      /* 隐藏原站所有内容，我们自己渲染完整页面 */
      body > *:not(#qd-root):not(#qd-engine-menu) { display: none !important; }

      #qd-root { max-width: 480px; margin: 0 auto; padding-bottom: 40px;
        background: #f5f5f7; min-height: 100vh; }

      /* 顶部 header */
      #qd-root .qd-header {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center; gap: 8px;
        padding: 12px 16px; background: #fff;
        position: sticky; top: 0; z-index: 10;
        touch-action: manipulation;
      }
      #qd-root .qd-site { display: flex; background: #f0f0f3; border-radius: 18px; padding: 3px;
        justify-self: center; }
      #qd-root .qd-menu:first-child { justify-self: start; }
      #qd-root .qd-menu:last-child { justify-self: end; }
      #qd-root .qd-site button { border: 0; background: transparent; padding: 5px 14px;
        border-radius: 15px; font-size: 13px; color: #666; cursor: pointer; }
      #qd-root .qd-site button.active { background: #fff; color: #e94f4f; font-weight: 600;
        box-shadow: 0 1px 3px rgba(0,0,0,.08); }
      #qd-root .qd-menu {
        width: 32px; height: 32px; border: 0; background: #f5f5f7;
        border-radius: 16px; font-size: 18px; color: #333; cursor: pointer;
        display: flex; align-items: center; justify-content: center; flex: 0 0 auto;
      }
      #qd-root .qd-menu.right { margin-left: auto; }

      #qd-root .qd-tabs {
        display: flex; gap: 8px; overflow-x: auto; padding: 12px 16px;
        background: #fff; scrollbar-width: none;
      }
      #qd-root .qd-tabs::-webkit-scrollbar { display: none; }
      #qd-root .qd-tabs button {
        flex: 0 0 auto; border: 0; background: #f5f5f7; color: #555;
        padding: 7px 14px; border-radius: 16px; font-size: 14px; cursor: pointer;
      }
      #qd-root .qd-tabs button.active { background: #ffe4e6; color: #e94f4f; font-weight: 600; }

      #qd-root .qd-filters {
        display: flex; gap: 8px; overflow-x: auto; padding: 8px 16px;
        scrollbar-width: none;
      }
      #qd-root .qd-filters::-webkit-scrollbar { display: none; }
      #qd-root .qd-filters button {
        flex: 0 0 auto; border: 0; background: #fff; color: #666;
        padding: 6px 12px; border-radius: 14px; font-size: 13px; cursor: pointer;
      }
      #qd-root .qd-filters button.active { background: #ffe4e6; color: #e94f4f; }

      #qd-root .qd-list { padding: 8px 12px; }
      #qd-root .qd-book {
        display: flex; gap: 12px; background: #fff; border-radius: 10px;
        padding: 12px; margin-bottom: 10px; cursor: pointer;
      }
      #qd-root .qd-cover {
        width: 60px; height: 82px; border-radius: 4px; object-fit: cover;
        background: #eee; flex: 0 0 auto;
      }
      #qd-root .qd-info { flex: 1; min-width: 0; }
      #qd-root .qd-row { display: flex; align-items: center; gap: 8px; }
      #qd-root .qd-rank { font-size: 16px; font-weight: 700; color: #bbb; min-width: 22px; }
      #qd-root .qd-rank.r1{color:#ff4d4f}.qd-root .qd-rank.r2{color:#ff7a45}.qd-root .qd-rank.r3{color:#ffa940}
      #qd-root .qd-name { font-size: 16px; font-weight: 600; color: #1a1a1a;
        overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
      #qd-root .qd-hot { margin-left: auto; font-size: 12px; color: #e94f4f; flex: 0 0 auto; }
      #qd-root .qd-meta { margin-top: 4px; font-size: 13px; color: #999; }
      #qd-root .qd-intro { margin-top: 4px; font-size: 13px; color: #666;
        overflow: hidden; text-overflow: ellipsis; display: -webkit-box;
        -webkit-line-clamp: 2; -webkit-box-orient: vertical; line-height: 1.4; }

      #qd-root .qd-loading, #qd-root .qd-error {
        text-align: center; color: #999; padding: 60px 20px; font-size: 14px;
      }
      #qd-root .qd-error { color: #e94f4f; }

      #qd-menu-btn {
        position: fixed; top: 10px; right: 12px; width: 36px; height: 36px;
        border: 0; background: rgba(255,255,255,.9); border-radius: 18px;
        font-size: 20px; color: #333; cursor: pointer; z-index: 9998;
        box-shadow: 0 1px 4px rgba(0,0,0,.1);
      }
      #qd-engine-menu {
        position: fixed; top: 54px; left: 12px; z-index: 9999; background: #fff;
        border-radius: 12px; box-shadow: 0 6px 24px rgba(0,0,0,.18);
        min-width: 180px; padding: 6px 0; display: none;
      }
      #qd-engine-menu.show { display: block; }
      #qd-engine-menu h3 { font-size: 13px; color: #999; font-weight: 500; margin: 0; padding: 8px 16px; }
      #qd-engine-menu button {
        display: flex; align-items: center; width: 100%; border: 0; background: transparent;
        padding: 12px 16px; font-size: 15px; cursor: pointer; text-align: left; color: #333;
      }
      #qd-engine-menu button .check { margin-left: auto; color: #e94f4f; font-weight: 700; }
      #qd-engine-menu button.active { background: #fff5f5; color: #e94f4f; }
    `;
    document.head.appendChild(style);

    // ---------- 请求 ----------
    async function req(url) {
      const same = (location.hostname.includes('qidian') && /qidian\.com/.test(url)) ||
                   (/qdmm\.com/.test(location.hostname) && /qdmm\.com/.test(url));
      const tryFetch = (u, useGm) => new Promise((resolve, reject) => {
        if (!useGm) {
          fetch(u, { credentials: 'include' })
            .then(r => { if (!r.ok) throw new Error('HTTP '+r.status); return r.text(); })
            .then(resolve).catch(reject);
        } else {
          GM_xmlhttpRequest({
            method: 'GET', url: u, timeout: 15000,
            headers: { 'User-Agent': navigator.userAgent, 'Referer': location.href },
            onload: r => { if (r.status>=300 && r.status!==304) reject(new Error('HTTP '+r.status)); else resolve(r.responseText); },
            onerror: () => reject(new Error('network')),
            ontimeout: () => reject(new Error('timeout')),
          });
        }
      });
      try {
        return await tryFetch(url, !same);
      } catch (e) {
        // 女生站 m.qdmm.com WAF 常拦同域 fetch，fallback 到 www.qdmm.com
        if (/qdmm\.com/.test(url)) {
          const alt = url.replace('m.qdmm.com', 'www.qdmm.com');
          console.log('[qd-rank] fallback to', alt);
          return await tryFetch(alt, true);
        }
        throw e;
      }
    }

    // ---------- 解析 ----------
    function parseAll(htmlText) {
      const doc = new DOMParser().parseFromString(htmlText, 'text/html');

      // 1) 分类 pill：_optionsGray_ 且 href 含 catid
      const cats = [];
      doc.querySelectorAll('a[class*="_optionsGray_"]').forEach(a => {
        const m = (a.getAttribute('href')||'').match(/catid(-?\d+)/);
        if (!m) return;
        cats.push({ id: m[1], label: a.textContent.trim(), selected: a.className.includes('_optionSelect_') });
      });
      // 2) 月份 pill：_optionWhite_
      const months = [];
      doc.querySelectorAll('a[class*="_optionWhite_"]').forEach(a => {
        const m = (a.getAttribute('href')||'').match(/(\d{6})/);
        if (!m) return;
        months.push({ id: m[1], label: a.textContent.trim(), selected: a.className.includes('_optionSelect_') });
      });

      // 3) 书单：移动端 a._bookItem_
      const books = [];
      const seen = new Set();
      doc.querySelectorAll('a[href*="/book/"]').forEach(a => {
        const m = (a.getAttribute('href')||'').match(/\/book\/(\d+)/);
        if (!m || seen.has(m[1])) return;
        seen.add(m[1]);
        const img = a.querySelector('img');
        let cover = img ? (img.getAttribute('data-src') || img.getAttribute('src') || '') : '';
        if (cover.startsWith('//')) cover = 'https:'+cover;
        const h2 = a.querySelector('h2');
        const title = h2 ? h2.textContent.trim() : (a.getAttribute('title')||'').replace(/(最新章节)?在线阅读.*$/,'');
        const rankEl = a.querySelector('[class*="_ranking_"]');
        const rank = rankEl ? parseInt(rankEl.textContent.trim(),10)||books.length+1 : books.length+1;
        const hotEl = a.querySelector('[class*="_bookTitleR_"]');
        const hot = hotEl ? hotEl.textContent.trim() : '';
        const subEl = a.querySelector('[class*="_subTitle_"]');
        let author='', category='', words='';
        if (subEl) {
          const parts = subEl.textContent.split(/[·•]/).map(s=>s.trim()).filter(Boolean);
          if (parts[0]) author=parts[0];
          if (parts[1]) category=parts[1];
          if (parts[2]) words=parts[2];
        }
        const descEl = a.querySelector('[class*="_bookDesc_"]');
        const intro = descEl ? descEl.textContent.trim() : '';
        books.push({ rank, bookId: m[1], title, author, category, wordCount: words, hotScore: hot, cover, intro });
      });
      return { cats, months, books: books.sort((a,b)=>a.rank-b.rank) };
    }

    // ---------- 渲染 ----------
    function ensureRoot() {
      let root = document.getElementById('qd-root');
      if (!root) {
        root = document.createElement('div');
        root.id = 'qd-root';
        document.body.appendChild(root);
      }
      return root;
    }

    function siteUrl() {
      return state.site === 'female' ? 'https://m.qdmm.com' : 'https://m.qidian.com';
    }
    function currentUrl() {
      return `${siteUrl()}/rank/${state.tab}/catid${state.catId}/${state.month}/`;
    }

    // ---------- 无限滚动状态 ----------
    let page = 1;
    let isLast = false;
    let loadingMore = false;
    let currentBooks = [];

    // 从 cookie 读 csrf token
    function getCookie(name) {
      const m = document.cookie.match(new RegExp('(?:^|; )' + name + '=([^;]*)'));
      return m ? decodeURIComponent(m[1]) : '';
    }

    function getCsrf() {
      const m = document.cookie.match(/_csrfToken=([^;]+)/);
      return m ? m[1] : '';
    }

    async function loadMore() {
      if (loadingMore || isLast) return;
      loadingMore = true;
      updateSentinel();
      page++;
      try {
        // 同域 API：/webcommon/rank/{tab}list?gender=male&pageNum=N&_csrfToken=xxx
        const tabApiName = state.tab === 'readindex' ? 'readIndex' : state.tab;
        const gender = state.site === 'female' ? 'female' : 'male';
        const base = siteUrl();
        const csrf = getCsrf();
        const apiUrl = `${base}/webcommon/rank/${tabApiName}list?gender=${gender}&pageNum=${page}&catId=${state.catId}&_csrfToken=${csrf}`;

        console.log('[qd-rank] API p'+page, apiUrl);
        const r = await fetch(apiUrl, { credentials: 'include' });
        const txt = await r.text();
        console.log('[qd-rank] resp', r.status, txt.slice(0,200));

        let json;
        try { json = JSON.parse(txt); }
        catch(e) { throw new Error('HTTP '+r.status+': '+txt.slice(0,80)); }
        if (json.code !== 0 || !json.data || !json.data.records) {
          isLast = true;
          const s = document.getElementById('qd-sentinel');
          if (s) s.textContent = '— 没有更多了 —';
          return;
        }
        isLast = !!json.data.isLast;
        const newBooks = json.data.records.map(r => ({
          rank: r.rankNum,
          bookId: String(r.bid),
          title: r.bName,
          author: r.bAuth,
          category: r.cat,
          wordCount: r.cnt,
          hotScore: r.rankCnt || '',
          cover: `https://bookcover.yuewen.com/qdbimg/349573/${r.bid}/180`,
          intro: r.desc || '',
        }));
        appendBooks(newBooks);
      } catch (e) {
        page--;
        console.error('[qd-rank] loadMore failed:', e);
        const s = document.getElementById('qd-sentinel');
        if (s) s.textContent = '加载失败：' + (e.message||e) + '（点击重试）';
        if (s) s.style.cursor = 'pointer';
        if (s) s.onclick = () => { s.onclick = null; loadMore(); };
      } finally {
        loadingMore = false;
        updateSentinel();
      }
    }

    function appendBooks(books) {
      const list = document.querySelector('#qd-root .qd-list');
      if (!list) return;
      const sentinel = document.getElementById('qd-sentinel');
      books.forEach(b => {
        const div = document.createElement('div');
        div.className = 'qd-book';
        div.dataset.title = b.title;
        div.innerHTML = `
          <img class="qd-cover" src="${b.cover}" loading="lazy" onerror="this.style.background='#ddd'">
          <div class="qd-info">
            <div class="qd-row">
              <span class="qd-rank ${b.rank<=3?'r'+b.rank:''}">${b.rank}</span>
              <span class="qd-name">${b.title}</span>
              ${b.hotScore?`<span class="qd-hot">${b.hotScore}</span>`:''}
            </div>
            <div class="qd-meta">${[b.author,b.category,b.wordCount].filter(Boolean).join(' · ')}</div>
            ${b.intro?`<div class="qd-intro">${b.intro}</div>`:''}
          </div>`;
        div.onclick = () => searchBook(b.title);
        // 插到 sentinel 前面，保持 sentinel 在末尾
        if (sentinel) list.insertBefore(div, sentinel);
        else list.appendChild(div);
      });
    }

    // 滚动加载：用 IntersectionObserver 监听末尾哨兵
    let observer = null;
    function setupInfiniteScroll() {
      if (observer) observer.disconnect();
      const list = document.querySelector('#qd-root .qd-list');
      if (!list) return;
      // 末尾加哨兵
      let sentinel = document.getElementById('qd-sentinel');
      if (!sentinel) {
        sentinel = document.createElement('div');
        sentinel.id = 'qd-sentinel';
        sentinel.style.cssText = 'padding:20px;text-align:center;color:#999;font-size:13px;';
        list.appendChild(sentinel);
      }
      updateSentinel();
      observer = new IntersectionObserver((entries) => {
        if (entries[0].isIntersecting) loadMore();
      }, { rootMargin: '300px' });
      observer.observe(sentinel);
    }
    function updateSentinel() {
      const s = document.getElementById('qd-sentinel');
      if (!s) return;
      if (isLast) s.textContent = '— 没有更多了 —';
      else if (loadingMore) s.textContent = '加载中…';
      else s.textContent = '';
    }

    async function load() {
      const root = ensureRoot();
      root.innerHTML = `<div class="qd-loading">加载中…</div>`;
      page = 1; loadingMore = false;
      try {
        const html = await req(currentUrl());
        const { cats, months, books } = parseAll(html);
        isLast = false; // 让 loadMore 自己试
        currentBooks = books;
        render({ cats, months, books });
        window.scrollTo(0, 0);
      } catch (e) {
        root.innerHTML = `<div class="qd-error">加载失败：${e.message||e}</div>`;
      }
    }

    function render({ cats, months, books }) {
      const root = ensureRoot();
      const tabs = RANK_TABS[state.site];

      let html = `<div class="qd-header">
        <button class="qd-menu" id="qd-menu-inline">☰</button>
        <div class="qd-site">
          <button data-site="male" class="${state.site==='male'?'active':''}">男生</button>
          <button data-site="female" class="${state.site==='female'?'active':''}">女生</button>
        </div>
        <button class="qd-menu" id="qd-bookcity-btn" title="起点主站"><svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z"/><path d="M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z"/></svg></button>
    </div>`;

      html += `<div class="qd-tabs">`;
      tabs.forEach(([k,label]) => {
        html += `<button data-tab="${k}" class="${state.tab===k?'active':''}">${label}</button>`;
      });
      html += `</div>`;

      if (cats.length) {
        html += `<div class="qd-filters">`;
        cats.forEach(c => {
          html += `<button data-cat="${c.id}" class="${c.selected?'active':''}">${c.label}</button>`;
        });
        html += `</div>`;
      }
      if (months.length) {
        html += `<div class="qd-filters">`;
        months.forEach(mo => {
          html += `<button data-month="${mo.id}" class="${mo.selected?'active':''}">${mo.label}</button>`;
        });
        html += `</div>`;
      }

      html += `<div class="qd-list">`;
      if (!books.length) {
        html += `<div class="qd-error">该榜单暂无可显示内容。</div>`;
      } else {
        books.forEach(b => {
          html += `
          <div class="qd-book" data-title="${b.title.replace(/"/g,'&quot;')}">
            <img class="qd-cover" src="${b.cover}" loading="lazy" onerror="this.style.background='#ddd'">
            <div class="qd-info">
              <div class="qd-row">
                <span class="qd-rank ${b.rank<=3?'r'+b.rank:''}">${b.rank}</span>
                <span class="qd-name">${b.title}</span>
                ${b.hotScore?`<span class="qd-hot">${b.hotScore}</span>`:''}
              </div>
              <div class="qd-meta">${[b.author,b.category,b.wordCount].filter(Boolean).join(' · ')}</div>
              ${b.intro?`<div class="qd-intro">${b.intro}</div>`:''}
            </div>
          </div>`;
        });
      }
      html += `</div>`;
      root.innerHTML = html;

      // 绑定事件
      root.querySelectorAll('[data-site]').forEach(b => b.onclick = () => {
        // 跨站切换直接跳转，绕过 WAF
        const target = b.dataset.site === 'female' ? 'https://m.qdmm.com/rank/' : 'https://m.qidian.com/rank/';
        location.href = target;
      });
      root.querySelectorAll('[data-tab]').forEach(b => b.onclick = () => {
        state.tab = b.dataset.tab;
        state.catId = '-1';
        load();
      });
      root.querySelectorAll('[data-cat]').forEach(b => b.onclick = () => { state.catId = b.dataset.cat; load(); });
      root.querySelectorAll('[data-month]').forEach(b => b.onclick = () => { state.month = b.dataset.month; load(); });
      root.querySelectorAll('.qd-book').forEach(el => el.onclick = () => searchBook(el.dataset.title));
      const menuBtn = root.querySelector('#qd-menu-inline');
      if (menuBtn) menuBtn.onclick = (ev) => { ev.stopPropagation(); toggleMenu(); };
      const bcBtn = root.querySelector('#qd-bookcity-btn');
      if (bcBtn) bcBtn.onclick = (ev) => { ev.preventDefault(); ev.stopPropagation(); location.href = siteUrl() + '/'; };

      // 自动滚动到选中的 tab
      const activeTab = root.querySelector('[data-tab].active');
      if (activeTab) activeTab.scrollIntoView({ inline: 'center', block: 'nearest', behavior: 'smooth' });

      // 初始化无限滚动
      setupInfiniteScroll();
    }

    // ---------- 点书搜索 ----------
    async function searchBook(title) {
      if (!title) return;
      const key = localStorage.getItem('qd-rank-engine') || state.engine || 'quark';
      const eng = ENGINES.find(e => e.key === key) || ENGINES[0];
      window.open(eng.prefix + encodeURIComponent(title), '_blank');
    }

    // ---------- 引擎菜单 ----------
    function toggleMenu() {
      const menu = document.getElementById('qd-engine-menu');
      menu.classList.toggle('show');
    }
    function injectMenu() {
      const menu = document.createElement('div');
      menu.id = 'qd-engine-menu';
      document.body.appendChild(menu);
      function render() {
        menu.innerHTML = '<h3>选择搜索引擎</h3>';
        ENGINES.forEach(en => {
          const b = document.createElement('button');
          if (en.key === state.engine) b.classList.add('active');
          b.innerHTML = `${en.name}${en.key===state.engine?'<span class="check">✓</span>':''}`;
          b.onclick = (ev) => {
            ev.stopPropagation();
            state.engine = en.key;
            localStorage.setItem('qd-rank-engine', en.key);
            render();
            setTimeout(()=>menu.classList.remove('show'),150);
          };
          menu.appendChild(b);
        });
      }
      render();
      document.addEventListener('click', (ev) => {
        if (!menu.contains(ev.target) && ev.target.id !== 'qd-menu-inline') menu.classList.remove('show');
      });
    }

    // ---------- 拦截原站点击 ----------
    document.addEventListener('click', (e) => {
      // 1) 男生/女生 nav 链接
      const navA = e.target.closest('nav[class*="_nav_"] a, [class*="_nav_"] a');
      if (navA) {
        const href = navA.getAttribute('href') || '';
        if (href.includes('qidian.com/rank') || href.includes('qdmm.com/rank')) {
          e.preventDefault();
          e.stopPropagation();
          state.site = href.includes('qdmm') ? 'female' : 'male';
          state.tab = 'yuepiao';
          state.catId = '-1';
          load();
          return;
        }
      }
      // 2) book 链接（我们自己渲染的 #qd-root 里的已经绑了 onclick，这里管原站 DOM 里的）
      const a = e.target.closest('a[href*="/book/"]');
      if (a && !a.closest('#qd-root')) {
        e.preventDefault();
        e.stopPropagation();
        const h2 = a.querySelector('h2');
        const title = h2 ? h2.textContent.trim() : (a.getAttribute('title')||'').replace(/最新章节在线阅读.*$/,'');
        searchBook(title);
      }
    }, true);

    // ---------- 启动 ----------
    injectMenu();
    load();
  }

  try {
    initQdRank();
  } catch(e) {
    console.error('qd-rank init failed', e);
  }
})();