// ==UserScript==
// @name         流媒体聚合搜索 & 下载器快捷启动（增强版 v3.13）
// @namespace    https://workbuddy.cn
// @version      3.13
// @description  聚合搜索主流正版流媒体（可自定义平台 + 分组 + 单独开关），支持更多下载器，收藏搜索历史（可导出），深色模式；站点内合规「解析下载」启动器，自动采集页面 <video>/<a href="*.m3u8"> 等直链并填入下载框；可一键内嵌「可配置解析服务列表」解析本页（vlogdownloader / tool77 等，可运行时添加，选择持久化）；新增「🚀 启动 AIX」按钮（仅跳转/打开独立 AIX 扩展并复制本页链接，解析由 AIX 自身完成，不提取受 DRM 保护的流）。仅用于合法内容。
// @author       WorkBuddy
// @license      MIT
// @match        *://*/*
// @grant        GM_openInTab
// @grant        GM_setClipboard
// @grant        GM_xmlhttpRequest
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// @connect      *
// @run-at       document-idle
// ==/UserScript==

(function () {
  'use strict';

  /* ============================ 默认数据 ============================ */
  // 全部为合法授权平台：国际流媒体 + 国内电视台官方平台 + 国内垂直/综合正版平台
  const DEFAULT_PLATFORMS = [
    // —— 国际正版流媒体 ——
    { name: 'Netflix',     url: 'https://www.netflix.com/search?q={q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Disney+',     url: 'https://www.disneyplus.com/search?q={q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Prime Video', url: 'https://www.amazon.com/s?k={q}&i=instant-video', enabled: true, group: '国际正版流媒体' },
    { name: 'U-NEXT',      url: 'https://video.unext.jp/search?query={q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Freevee',     url: 'https://www.amazon.com/s?k={q}&i=instant-video&search-type=freevee', enabled: true, group: '国际正版流媒体' },
    { name: 'Crackle',     url: 'https://www.crackle.com/search?q={q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Movist',      url: 'https://movist.com/search?q={q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Vudu',        url: 'https://www.vudu.com/content/browse/search/{q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Tubi',        url: 'https://tubitv.com/search/{q}', enabled: true, group: '国际正版流媒体' },
    { name: 'Pluto TV',    url: 'https://pluto.tv/search/{q}', enabled: true, group: '国际正版流媒体' },
    // —— 国内电视台旗下官方平台 + 国内垂直/综合正版平台 ——
    { name: '央视频',       url: 'https://www.yangshipin.cn/search/result?query={q}', enabled: true, group: '国内正版平台' },
    { name: '芒果TV',       url: 'https://so.mgtv.com/so/?k={q}', enabled: true, group: '国内正版平台' },
    { name: '百视通',       url: 'https://www.bestv.com.cn/', enabled: true, group: '国内正版平台' }, // 大屏为主，Web 搜索端点未确认，指向官网首页
    { name: 'bilibili',    url: 'https://search.bilibili.com/all?keyword={q}', enabled: true, group: '国内正版平台' },
    { name: '1905电影网',   url: 'https://www.1905.com/search/?q={q}', enabled: true, group: '国内正版平台' }, // 老电影/经典剧，官方授权
    { name: '腾讯视频',     url: 'https://v.qq.com/x/search/?q={q}', enabled: true, group: '国内正版平台' },
    { name: '爱奇艺',       url: 'https://so.iqiyi.com/so/q_{q}', enabled: true, group: '国内正版平台' },
    { name: '优酷',         url: 'https://so.youku.com/search_video/q_{q}', enabled: true, group: '国内正版平台' },
    { name: '搜狐视频',     url: 'https://so.tv.sohu.com/mts?wd={q}', enabled: true, group: '国内正版平台' }, // 搜索端点已确认
    { name: 'PP视频',       url: 'https://search.pptv.com/s_video?kw={q}', enabled: true, group: '国内正版平台' }, // 原 PPTV 聚力，搜索端点已确认
    { name: '华数TV',       url: 'https://www.wasu.cn/search/{q}', enabled: true, group: '国内正版平台' }, // 华数TV 搜索为路径式路由 /search/{关键词}，由用户浏览器实测确认（WebFetch 不跑 JS 故只见到 SSR 壳）
    // —— 国际版（面向海外，与国内会员不通用）——
    { name: '爱奇艺国际版', url: 'https://www.iq.com/search?keyword={q}', enabled: true, group: '国际版（海外）' }, // iq.com
    { name: '腾讯国际版WeTV', url: 'https://wetv.vip/search?q={q}', enabled: true, group: '国际版（海外）' }, // WeTV 搜索端点已确认
    // —— 广电总局验收的OTT牌照方（参考条目：电视/大屏为主，无网页搜索端点，点击仅打开官网）——
    { name: '未来电视（CNTV）',  url: 'https://www.chinaott.com/', enabled: true, group: '广电OTT牌照方（参考）' },
    { name: 'CIBN（国广）',      url: 'https://www.cibn.cc/', enabled: true, group: '广电OTT牌照方（参考）' },
    { name: '银河奇异果（央广）', url: 'https://app.iqiyi.com/tv/player/', enabled: true, group: '广电OTT牌照方（参考）' },
    { name: '南方传媒云视听',     url: 'https://www.snm.gd.cn/', enabled: true, group: '广电OTT牌照方（参考）' },
    // 注：芒果TV（湖南广电）已在「国内正版平台」可搜索；百视通已在「国内正版平台」作参考。七家牌照方全部覆盖。
  ];

  // 分组顺序；默认折叠的分组
  const GROUP_ORDER = ['国际正版流媒体', '国内正版平台', '广电OTT牌照方（参考）', '国际版（海外）', '其他'];
  const GROUP_COLLAPSED = { '国际版（海外）': true };

  // type: qb | tr | aria | gopeed | open | copy
  const DEFAULT_DOWNLOADERS = [
    { id: 'qb',     name: 'qBittorrent', type: 'qb',     webui: 'http://localhost:8080', user: 'admin', pass: 'adminadmin', enabled: true },
    { id: 'tr',     name: 'Transmission', type: 'tr',   rpc: 'http://localhost:9091/transmission/rpc', user: '', pass: '', enabled: true },
    { id: 'motrix', name: 'Motrix',      type: 'aria',  rpc: 'http://localhost:16800/jsonrpc', token: '', enabled: true },
    { id: 'gopeed', name: 'gopeed',      type: 'gopeed', api: 'http://localhost:9999', token: '', enabled: true },
    { id: 'wugong', name: '迅雷蜈蚣',     type: 'xunlei', webui: 'http://localhost:2345', enabled: true }, // cnk3x/xunlei Docker 版迅雷，标准端口 2345
    { id: 'utw',    name: 'uTorrent Web', type: 'open',  webui: 'https://web.utorrent.com', enabled: true },
    { id: 'thunder',name: '迅雷',        type: 'copy',   note: '复制后迅雷桌面端自动捕获剪贴板磁力链接', enabled: true },
    { id: 'idm',    name: 'IDM',         type: 'copy',   note: '复制下载地址，IDM 接管', enabled: false },
    { id: 'fdm',    name: 'FDM',         type: 'copy',   note: '复制后 FDM 接管', enabled: false },
    { id: 'bitcomet',name:'BitComet',    type: 'copy',   note: '复制后 BitComet 接管', enabled: false },
    { id: 'qdown',  name: 'QDown',       type: 'copy',   note: '复制后 QDown 接管', enabled: false },
    { id: 'xdown',  name: 'XDown',       type: 'copy',   note: '复制后 XDown 接管', enabled: false },
    { id: 'tixati', name: 'Tixati',      type: 'copy',   note: '复制后 Tixati 接管', enabled: false },
    { id: 'biglybt',name: 'BiglyBT',     type: 'copy',   note: '复制后 BiglyBT 接管', enabled: false },
    { id: 'frost',  name: 'FrostWire',   type: 'copy',   note: '复制后 FrostWire 接管', enabled: false },
    { id: 'folx',   name: 'Folx',        type: 'copy',   note: '复制后 Folx 接管（macOS）', enabled: false },
  ];

  const HISTORY_KEY = 'wb_history';
  const PLAT_KEY = 'wb_platforms';
  const DL_KEY = 'wb_downloaders';
  const THEME_KEY = 'wb_theme';
  const HISTORY_MAX = 50;

  // 外部解析服务列表（可配置；{u} 会被替换为当前页 URL 的 encodeURIComponent）
  // 仅在你有下载权利的内容上使用；脚本只负责打开这些服务，不抓取/解密任何流。
  const PARSE_SERVICES = [
    { name: 'vlogdownloader', url: 'https://pv.vlogdownloader.com/?url={u}' },
    { name: 'tool77',          url: 'https://www.tool77.com/zh-CN/v/downloader?url={u}' },
  ];
  const PARSE_LIST_KEY = 'wb_parse_list';
  const PARSE_IDX_KEY = 'wb_parse_idx';

  function getParseList() {
    const v = GM_getValue(PARSE_LIST_KEY, null);
    if (v) { try { const a = JSON.parse(v); if (Array.isArray(a) && a.length) return a; } catch (e) {} }
    return JSON.parse(JSON.stringify(PARSE_SERVICES));
  }
  function getParseIdx() {
    const list = getParseList();
    let i = (GM_getValue(PARSE_IDX_KEY, 0) | 0);
    if (i < 0 || i >= list.length) i = 0;
    return i;
  }
  function currentParseService() {
    const list = getParseList();
    return list[getParseIdx()] || list[0];
  }

  /* ============================ 存储 ============================ */
  const enc = (s) => encodeURIComponent(s);
  function getArr(key, def) {
    const v = GM_getValue(key, null);
    if (v) { try { return JSON.parse(v); } catch (e) {} }
    return JSON.parse(JSON.stringify(def));
  }
  function setArr(key, val) { GM_setValue(key, JSON.stringify(val)); }

  let PLATFORMS = getArr(PLAT_KEY, DEFAULT_PLATFORMS).map((p) => ({ enabled: true, ...p }));
  let DOWNLOADERS = getArr(DL_KEY, DEFAULT_DOWNLOADERS);
  let HISTORY = getArr(HISTORY_KEY, []);
  let THEME = GM_getValue(THEME_KEY, 'system'); // system | light | dark
  let GROUP_STATE = GM_getValue('wb_group_state', {}) || {}; // 分组折叠状态：group -> true 折叠

  /* ============================ 下载器发送 ============================ */
  function sendTo(d, url) {
    if (!url) { toast('请先粘贴下载链接'); return; }
    if (!d.enabled) { toast(d.name + ' 未启用'); return; }
    switch (d.type) {
      case 'qb':      return qbAdd(d, url);
      case 'tr':      return trAdd(d, url);
      case 'aria':    return ariaAdd(d, url);
      case 'gopeed':  return gopeedAdd(d, url);
      case 'xunlei':  return xunleiAdd(d, url);
      case 'open':    return GM_openInTab(d.webui, true);
      case 'copy':    return (GM_setClipboard(url), toast('已复制，' + (d.note || d.name + ' 接管')));
      default:        toast('未知下载器类型');
    }
  }

  function qbAdd(d, url) {
    const base = d.webui.replace(/\/$/, '');
    GM_xmlhttpRequest({
      method: 'POST', url: base + '/api/v2/auth/login',
      data: `username=${enc(d.user)}&password=${enc(d.pass)}`,
      headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
      onload: (r) => {
        const sid = (r.responseHeaders.match(/SID=([^;]+)/) || [])[1];
        if (!sid) return toast('qBittorrent 登录失败');
        GM_xmlhttpRequest({
          method: 'POST', url: base + '/api/v2/torrents/add',
          data: new URLSearchParams({ urls: url }).toString(),
          headers: { 'Content-Type': 'application/x-www-form-urlencoded', 'Cookie': 'SID=' + sid },
          onload: () => toast('已发送到 qBittorrent'),
          onerror: () => toast('qBittorrent 发送失败'),
        });
      }, onerror: () => toast('qBittorrent 连接失败'),
    });
  }

  function trAdd(d, url) {
    const req = { method: 'torrent-add', arguments: { filename: url } };
    const post = (sid) => GM_xmlhttpRequest({
      method: 'POST', url: d.rpc, data: JSON.stringify(req),
      headers: {
        'Content-Type': 'application/json',
        ...(d.user ? { 'Authorization': 'Basic ' + btoa(d.user + ':' + d.pass) } : {}),
        ...(sid ? { 'X-Transmission-Session-Id': sid } : {}),
      },
      onload: (r) => {
        if (r.status === 409) {
          const nsid = (r.responseHeaders.match(/X-Transmission-Session-Id:\s*([^\r\n]+)/i) || [])[1];
          if (nsid) return post(nsid.trim());
          return toast('Transmission 需要会话 ID');
        }
        toast('已发送到 Transmission');
      }, onerror: () => toast('Transmission 连接失败'),
    });
    post(null);
  }

  function ariaAdd(d, url) {
    const payload = { jsonrpc: '2.0', id: 'wb', method: 'aria2.addUri',
      params: d.token ? [`token:${d.token}`, [url]] : [[url]] };
    GM_xmlhttpRequest({
      method: 'POST', url: d.rpc, data: JSON.stringify(payload),
      headers: { 'Content-Type': 'application/json' },
      onload: () => toast('已发送到 ' + d.name), onerror: () => toast(d.name + ' 连接失败'),
    });
  }

  function gopeedAdd(d, url) {
    const base = d.api.replace(/\/$/, '');
    GM_xmlhttpRequest({
      method: 'POST', url: base + '/api/v1/task',
      data: JSON.stringify({ type: 'uri', uri: url }),
      headers: {
        'Content-Type': 'application/json',
        ...(d.token ? { 'Authorization': 'Bearer ' + d.token } : {}),
      },
      onload: () => toast('已发送到 gopeed'), onerror: () => toast('gopeed 连接失败'),
    });
  }

  // 迅雷蜈蚣 = cnk3x/xunlei Docker 版迅雷，API 走 Synology 风格 pan-xunlei-com CGI
  // 要求：Docker 迅雷 Web 端（:2345）已登录；pan-auth 是从首页 uiauth() 提取的静态 token
  function xunleiAdd(d, url) {
    const base = d.webui.replace(/\/$/, '');
    const H0 = { 'User-Agent': 'Mozilla/5.0' };
    GM_xmlhttpRequest({
      method: 'GET', url: base + '/webman/3rdparty/pan-xunlei-com/index.cgi/', headers: H0,
      onload: (r) => {
        const m = (r.responseText || '').match(/uiauth\(value\)\{\s*return\s*"([^"]+)"/);
        if (!m) return toast('迅雷蜈蚣：未找到 pan-auth（请确认已登录 :2345）');
        const panAuth = m[1];
        const cookie = (r.responseHeaders.match(/set-cookie:\s*([^\r\n]+)/i) || [])[1] || '';
        const H = { 'pan-auth': panAuth, 'device-space': '', 'content-type': 'application/json', 'Accept': '*/*' };
        if (cookie) H['Cookie'] = cookie.split(';')[0];
        // 取设备 device_id
        GM_xmlhttpRequest({
          method: 'GET', url: base + '/webman/3rdparty/pan-xunlei-com/index.cgi/drive/v1/tasks?type=user%23runner&device_space=', headers: H,
          onload: (r2) => {
            let deviceId;
            try { deviceId = JSON.parse(r2.responseText).tasks[0].params.target; }
            catch (e) { return toast('迅雷蜈蚣：获取设备失败（未登录？）'); }
            // 取根目录 parent_folder_id
            GM_xmlhttpRequest({
              method: 'GET', url: base + '/webman/3rdparty/pan-xunlei-com/index.cgi/drive/v1/files?space=' + encodeURIComponent(deviceId) + '&limit=200&parent_id=&filters=%7B%22kind%22%3A%7B%22eq%22%3A%22drive%23folder%22%7D%7D&page_token=&device_space=', headers: H,
              onload: (r3) => {
                let parentId;
                try { const f = JSON.parse(r3.responseText).files[0]; parentId = f.parent_id || f.id; }
                catch (e) { return toast('迅雷蜈蚣：获取目录失败'); }
                // 取任务名（resource/list）
                GM_xmlhttpRequest({
                  method: 'POST', url: base + '/webman/3rdparty/pan-xunlei-com/index.cgi/drive/v1/resource/list?device_space=', headers: H, data: JSON.stringify({ urls: url }),
                  onload: (r4) => {
                    let name;
                    try { name = JSON.parse(r4.responseText).list.resources[0].name; } catch (e) { name = url; }
                    const body = { type: 'user#download-url', name: name, file_name: name, file_size: '0', space: deviceId,
                      params: { target: deviceId, url: url, total_file_count: '0', parent_folder_id: parentId, sub_file_index: '', file_id: '' } };
                    GM_xmlhttpRequest({
                      method: 'POST', url: base + '/webman/3rdparty/pan-xunlei-com/index.cgi/drive/v1/task?device_space=', headers: H, data: JSON.stringify(body),
                      onload: (r5) => {
                        const ok = (() => { try { return JSON.parse(r5.responseText).HttpStatus === 0; } catch (e) { return false; } })();
                        toast(ok ? '已发送到 迅雷蜈蚣' : '迅雷蜈蚣：提交失败');
                      },
                      onerror: () => toast('迅雷蜈蚣：连接失败'),
                    });
                  },
                  onerror: () => toast('迅雷蜈蚣：连接失败'),
                });
              },
              onerror: () => toast('迅雷蜈蚣：连接失败'),
            });
          },
          onerror: () => toast('迅雷蜈蚣：连接失败'),
        });
      },
      onerror: () => toast('迅雷蜈蚣：连接失败'),
    });
  }

  /* ============================ 历史 ============================ */
  function addHistory(q) {
    q = q.trim(); if (!q) return;
    HISTORY = HISTORY.filter((h) => h.q !== q);
    HISTORY.unshift({ q, time: Date.now(), fav: false });
    if (HISTORY.length > HISTORY_MAX) HISTORY = HISTORY.slice(0, HISTORY_MAX);
    setArr(HISTORY_KEY, HISTORY); renderHistory();
  }
  function toggleFav(q) {
    const h = HISTORY.find((x) => x.q === q); if (!h) return;
    h.fav = !h.fav; setArr(HISTORY_KEY, HISTORY); renderHistory();
  }
  function delHistory(q) {
    HISTORY = HISTORY.filter((x) => x.q !== q); setArr(HISTORY_KEY, HISTORY); renderHistory();
  }
  function exportHistory() {
    if (!HISTORY.length) return toast('暂无历史可导出');
    const data = HISTORY.map((h) => ({ query: h.q, time: new Date(h.time).toISOString(), favorite: h.fav }));
    const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
    const a = document.createElement('a');
    a.href = URL.createObjectURL(blob);
    a.download = 'wb-search-history-' + new Date().toISOString().slice(0, 10) + '.json';
    document.body.appendChild(a); a.click(); a.remove();
    setTimeout(() => URL.revokeObjectURL(a.href), 1000);
    toast('历史已导出为 JSON');
  }
  function renderHistory() {
    const box = $('#wb-history'); if (!box) return;
    const fav = HISTORY.filter((h) => h.fav);
    const rest = HISTORY.filter((h) => !h.fav);
    const items = [...fav, ...rest];
    box.innerHTML = '';
    if (!items.length) { box.innerHTML = '<div style="color:#bbb;font-size:12px;">暂无记录</div>'; return; }
    items.forEach((h) => {
      const row = document.createElement('div');
      row.style.cssText = 'display:flex;align-items:center;gap:6px;padding:3px 0;';
      const star = document.createElement('span');
      star.textContent = h.fav ? '★' : '☆'; star.style.cssText = 'cursor:pointer;color:#e6a700;';
      star.onclick = (e) => { e.stopPropagation(); toggleFav(h.q); };
      const txt = document.createElement('span');
      txt.textContent = h.q; txt.style.cssText = 'flex:1;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;';
      txt.title = '点击重新搜索';
      txt.onclick = () => { $('#wb-q').value = h.q; doSearch(); };
      const del = document.createElement('span');
      del.textContent = '✕'; del.style.cssText = 'cursor:pointer;color:#bbb;';
      del.onclick = (e) => { e.stopPropagation(); delHistory(h.q); };
      row.append(star, txt, del); box.appendChild(row);
    });
  }

  /* ============================ 搜索 ============================ */
  function doSearch() {
    const q = $('#wb-q').value.trim();
    if (!q) return toast('请输入关键词');
    const active = PLATFORMS.filter((p) => p.enabled);
    if (!active.length) return toast('没有启用的平台');
    const targets = active.filter((p) => p.url.includes('{q}')); // 仅真正可网页搜索的平台
    if (!targets.length) return toast('没有可网页搜索的启用平台（参考条目仅能打开官网）');
    targets.forEach((p, i) => setTimeout(() => GM_openInTab(p.url.replace('{q}', enc(q)), true), i * 120));
    addHistory(q);
    toast('已打开 ' + targets.length + ' 个可搜索平台');
  }

  /* ============================ 主题 ============================ */
  function resolveTheme() {
    if (THEME === 'dark') return true;
    if (THEME === 'light') return false;
    return window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
  }
  function applyTheme() {
    const panel = $('#wb-panel'); if (!panel) return;
    const dark = resolveTheme();
    panel.setAttribute('data-theme', dark ? 'dark' : 'light');
    const btn = $('#wb-theme'); if (btn) btn.textContent = dark ? '☀' : '🌙';
    const lb = $('#wb-launch'); if (lb) lb.setAttribute('data-dark', dark ? '1' : '0');
  }
  function cycleTheme() {
    THEME = THEME === 'system' ? 'light' : THEME === 'light' ? 'dark' : 'system';
    GM_setValue(THEME_KEY, THEME);
    applyTheme();
    toast('主题：' + ({ system: '跟随系统', light: '浅色', dark: '深色' })[THEME]);
  }

  /* ============================ UI ============================ */
  const STYLE = `
    #wb-panel{position:fixed;right:16px;bottom:16px;z-index:999999;width:340px;background:#fff;
      border:1px solid #e3e3e3;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.15);
      font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:13px;color:#222;overflow:hidden;
      transition:background .2s,color .2s;}
    #wb-panel header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;
      background:#2b2f3a;color:#fff;cursor:move;user-select:none;}
    #wb-panel header .hbtns{display:flex;gap:10px;align-items:center;}
    #wb-panel header span{cursor:pointer;}
    #wb-panel .body{padding:12px;max-height:72vh;overflow:auto;}
    #wb-panel input[type=text]{width:100%;box-sizing:border-box;padding:8px 10px;border:1px solid #d0d0d0;
      border-radius:8px;outline:none;font-size:13px;background:#fff;color:#222;}
    #wb-panel input[type=text]:focus{border-color:#4a90e2;}
    #wb-panel .row{display:flex;gap:6px;margin-top:8px;flex-wrap:wrap;}
    #wb-panel button{background:#4a90e2;color:#fff;border:none;border-radius:8px;padding:6px 10px;
      cursor:pointer;font-size:12px;flex:1;min-width:60px;}
    #wb-panel button.gray{background:#e6e6e6;color:#333;}
    #wb-panel button:hover{filter:brightness(.95);}
    #wb-panel .sec{margin-top:14px;border-top:1px solid #eee;padding-top:10px;}
    #wb-panel .sec h4{margin:0 0 6px;font-size:12px;color:#888;font-weight:600;
      display:flex;justify-content:space-between;align-items:center;}
    #wb-panel .chips{display:flex;flex-wrap:wrap;gap:6px;}
    #wb-panel .pgroup{margin-bottom:8px;}
    #wb-panel .pgroup-h{display:flex;align-items:center;gap:6px;cursor:pointer;user-select:none;
      padding:2px 0;font-size:12px;color:#666;font-weight:600;}
    #wb-panel .pgroup-h:hover{color:#333;}
    #wb-panel .pg-arrow{width:12px;display:inline-block;color:#999;font-size:10px;}
    #wb-panel .pg-name{flex:1;}
    #wb-panel .pg-count{font-weight:400;color:#bbb;font-size:11px;}
    #wb-panel .pg-chips.collapsed{display:none;}
    #wb-panel .chip{background:#f0f4ff;color:#2b5fd6;border:1px solid #d4e0ff;border-radius:20px;
      padding:4px 10px;cursor:pointer;font-size:12px;}
    #wb-panel .chip:hover{background:#e0ebff;}
    #wb-panel .cfg{display:none;margin-top:8px;}
    #wb-panel .cfg.open{display:block;}
    #wb-panel .cfg label{display:block;font-size:11px;color:#777;margin:6px 0 2px;}
    #wb-panel .cfg input[type=text]{width:100%;box-sizing:border-box;padding:4px 6px;border:1px solid #d0d0d0;
      border-radius:6px;font-size:12px;background:#fff;color:#222;}
    #wb-panel .toast{position:fixed;right:16px;bottom:360px;background:#333;color:#fff;padding:8px 14px;
      border-radius:8px;font-size:12px;z-index:1000000;opacity:0;transition:opacity .3s;pointer-events:none;}
    #wb-panel .toast.show{opacity:1;}
    #wb-fab{position:fixed;right:16px;bottom:16px;z-index:999998;width:52px;height:52px;border-radius:50%;
      background:#2b2f3a;color:#fff;border:none;cursor:pointer;font-size:22px;box-shadow:0 6px 20px rgba(0,0,0,.25);}
    #wb-mini{font-size:11px;color:#4a90e2;cursor:pointer;user-select:none;}

    /* 合规启动器（站点内悬浮图标） */
    #wb-launch{position:fixed;left:16px;bottom:16px;z-index:999997;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;}
    #wb-launch .wb-launch-btn{background:#e2483d;color:#fff;border:none;border-radius:24px;padding:9px 14px;
      cursor:pointer;font-size:13px;font-weight:600;box-shadow:0 6px 20px rgba(0,0,0,.25);}
    #wb-launch .wb-launch-btn:hover{filter:brightness(.95);}
    #wb-launch .wb-launch-pop{margin-bottom:8px;background:#fff;border:1px solid #e3e3e3;border-radius:10px;
      box-shadow:0 8px 30px rgba(0,0,0,.15);padding:6px;display:flex;flex-direction:column;gap:4px;width:190px;
      position:absolute;bottom:46px;left:0;}
    #wb-launch .wb-launch-pop button{background:#f4f6fa;color:#222;border:none;border-radius:6px;padding:8px 10px;
      cursor:pointer;font-size:12px;text-align:left;}
    #wb-launch .wb-launch-pop button:hover{background:#e6ebf5;}
    #wb-launch .wb-launch-note{font-size:10px;color:#bbb;padding:2px 4px;line-height:1.4;}
    #wb-launch[data-dark="1"] .wb-launch-pop{background:#1e2128;border-color:#333;}
    #wb-launch[data-dark="1"] .wb-launch-pop button{background:#2a2e37;color:#e6e6e6;}
    #wb-launch[data-dark="1"] .wb-launch-pop button:hover{background:#323842;}
    #wb-launch[data-dark="1"] .wb-launch-note{color:#6b7280;}

    /* 内嵌解析弹层 */
    #wb-parse-frame{position:fixed;inset:0;z-index:1000001;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;}
    #wb-parse-frame .wb-pf-mask{position:absolute;inset:0;background:rgba(0,0,0,.45);}
    #wb-parse-frame .wb-pf-box{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
      width:min(480px,92vw);height:min(640px,86vh);background:#fff;border-radius:12px;overflow:hidden;
      box-shadow:0 20px 60px rgba(0,0,0,.4);display:flex;flex-direction:column;}
    #wb-parse-frame .wb-pf-head{display:flex;align-items:center;justify-content:space-between;
      padding:8px 12px;background:#2b2f3a;color:#fff;font-size:13px;}
    #wb-parse-frame .wb-pf-acts{display:flex;gap:12px;}
    #wb-parse-frame .wb-pf-acts span{cursor:pointer;}
    #wb-parse-frame .wb-pf-sel{max-width:62%;background:#3a3f4a;color:#fff;border:1px solid #555;border-radius:6px;
      padding:3px 6px;font-size:12px;outline:none;}
    #wb-parse-frame .wb-pf-iframe{flex:1;width:100%;border:none;background:#fff;}

    /* 深色模式 */
    #wb-panel[data-theme="dark"]{background:#1e2128;color:#e6e6e6;border-color:#333;}
    #wb-panel[data-theme="dark"] header{background:#111317;}
    #wb-panel[data-theme="dark"] .body{color:#e6e6e6;}
    #wb-panel[data-theme="dark"] input[type=text]{background:#2a2e37;color:#e6e6e6;border-color:#3a3f4a;}
    #wb-panel[data-theme="dark"] .sec{border-top-color:#333;}
    #wb-panel[data-theme="dark"] .sec h4{color:#9aa0aa;}
    #wb-panel[data-theme="dark"] .chip{background:#2a3550;color:#8ab4ff;border-color:#34456b;}
    #wb-panel[data-theme="dark"] .chip:hover{background:#324063;}
    #wb-panel[data-theme="dark"] .pgroup-h{color:#9aa0aa;}
    #wb-panel[data-theme="dark"] .pgroup-h:hover{color:#cfd4dc;}
    #wb-panel[data-theme="dark"] .pg-arrow{color:#7a8190;}
    #wb-panel[data-theme="dark"] .pg-count{color:#6b7280;}
    #wb-panel[data-theme="dark"] button.gray{background:#3a3f4a;color:#ddd;}
    #wb-panel[data-theme="dark"] .cfg input[type=text]{background:#2a2e37;color:#e6e6e6;border-color:#3a3f4a;}
    #wb-panel[data-theme="dark"] .cfg label{color:#9aa0aa;}
    #wb-panel[data-theme="dark"] .toast{background:#000;color:#fff;}
    #wb-panel[data-theme="dark"] #wb-history{color:#e6e6e6;}
  `;

  let toastTimer;
  function toast(msg) {
    let t = $('#wb-toast');
    if (!t) { t = document.createElement('div'); t.id = 'wb-toast'; t.className = 'toast'; safeAppend(t); }
    if (!t.parentNode) safeAppend(t);
    t.textContent = msg; t.classList.add('show');
    clearTimeout(toastTimer); toastTimer = setTimeout(() => t.classList.remove('show'), 1800);
  }

  function buildUI() {
    if ($('#wb-fab')) return;
    try {
      const style = document.createElement('style'); style.textContent = STYLE;
      if (document.head) document.head.appendChild(style);
      else safeAppend(style);
    } catch (e) { console.warn('[WB] inject style failed', e); }

    const fab = document.createElement('button');
    fab.id = 'wb-fab'; fab.textContent = '▶'; fab.title = '流媒体搜索 / 下载器';
    safeAppend(fab);

    const panel = document.createElement('div'); panel.id = 'wb-panel'; panel.style.display = 'none';
    panel.innerHTML = `
      <header>
        <b>流媒体聚合 & 下载器</b>
        <span class="hbtns"><span id="wb-theme" title="切换主题">🌙</span><span id="wb-close" title="关闭">✕</span></span>
      </header>
      <div class="body">
        <input type="text" id="wb-q" placeholder="输入片名 / 关键词…" />
        <div class="row">
          <button id="wb-search">全平台搜索</button>
          <button id="wb-copy" class="gray">复制链接</button>
        </div>

        <div class="sec">
          <h4>流媒体平台 <span id="wb-plat-edit" class="wb-mini">管理</span></h4>
          <div class="chips" id="wb-plat-chips"></div>
          <div class="cfg" id="wb-plat-cfg"></div>
        </div>

        <div class="sec">
          <h4>下载器（合法来源文件）</h4>
          <div class="chips" id="wb-dl-chips"></div>
          <div class="row"><input type="text" id="wb-magnet" placeholder="粘贴 magnet / http 下载链接…" /></div>
          <div class="row" id="wb-dl-btns"></div>
          <div class="row"><button id="wb-dl-cfg-toggle" class="gray">⚙ 配置下载器</button></div>
          <div class="cfg" id="wb-dl-cfg"></div>
        </div>

        <div class="sec">
          <h4>搜索历史 <span style="display:flex;gap:8px;"><span id="wb-hist-export" class="wb-mini">导出</span><span id="wb-hist-clear" class="wb-mini">清空</span></span></h4>
          <div id="wb-history"></div>
        </div>

        <div class="sec" style="color:#999;font-size:11px;">
          仅用于检索正版流媒体与发送合法来源下载任务，请遵守所在地区法律法规与平台服务条款。
        </div>
      </div>`;
    safeAppend(panel);

    // 平台 chips（按分组渲染，仅显示启用的）
    renderPlatChips();

    // 下载器 chips
    const dlChips = $('#wb-dl-chips', panel);
    DOWNLOADERS.forEach((d) => {
      const c = document.createElement('span'); c.className = 'chip'; c.textContent = d.name;
      c.style.opacity = d.enabled ? '1' : '.5';
      c.onclick = () => {
        if (d.webui) GM_openInTab(d.webui, true);
        else if (d.rpc) GM_openInTab(d.rpc.replace(/\/jsonrpc|\/rpc$/, ''), true);
        else if (d.api) GM_openInTab(d.api, true);
        else toast(d.note || (d.name + '：请配置'));
      };
      dlChips.appendChild(c);
    });

    // 下载器发送按钮
    const dlBtns = $('#wb-dl-btns', panel);
    DOWNLOADERS.filter((d) => d.enabled).forEach((d) => {
      const b = document.createElement('button'); b.className = 'gray'; b.textContent = '→ ' + d.name;
      b.onclick = () => sendTo(d, $('#wb-magnet').value.trim());
      dlBtns.appendChild(b);
    });
    const copyBtn = document.createElement('button'); copyBtn.className = 'gray'; copyBtn.textContent = '复制';
    copyBtn.onclick = () => { const v = $('#wb-magnet').value.trim(); if (v) { GM_setClipboard(v); toast('已复制'); } };
    dlBtns.appendChild(copyBtn);

    // 交互
    $('#wb-close', panel).onclick = () => { panel.style.display = 'none'; fab.style.display = 'block'; };
    fab.onclick = () => { panel.style.display = 'block'; fab.style.display = 'none'; };
    $('#wb-theme', panel).onclick = cycleTheme;
    $('#wb-q', panel).addEventListener('keydown', (e) => { if (e.key === 'Enter') doSearch(); });
    $('#wb-search', panel).onclick = doSearch;
    $('#wb-copy', panel).onclick = () => {
      const q = $('#wb-q').value.trim();
      const links = PLATFORMS.filter((p) => p.enabled && p.url.includes('{q}')).map((p) => p.url.replace('{q}', enc(q)));
      if (!links.length) return toast('没有可搜索的启用平台');
      GM_setClipboard(links.join('\n'));
      toast('已复制 ' + links.length + ' 个搜索链接');
    };

    $('#wb-plat-edit', panel).onclick = () => { const cfg = $('#wb-plat-cfg', panel); cfg.classList.toggle('open'); renderPlatCfg(cfg); };
    $('#wb-dl-cfg-toggle', panel).onclick = () => { const cfg = $('#wb-dl-cfg', panel); cfg.classList.toggle('open'); renderDlCfg(cfg); };
    $('#wb-hist-clear', panel).onclick = () => { HISTORY = []; setArr(HISTORY_KEY, HISTORY); renderHistory(); };
    $('#wb-hist-export', panel).onclick = exportHistory;

    renderHistory();
    applyTheme();
    drag(panel, $('header', panel));
    setTimeout(scanMagnets, 1500);
  }

  /* ============================ 合规启动器（站点内图标） ============================ */
  function buildLauncher() {
    if ($('#wb-launch')) return;
    const lb = document.createElement('div'); lb.id = 'wb-launch';
    lb.setAttribute('data-dark', resolveTheme() ? '1' : '0');
    lb.innerHTML = `
      <div class="wb-launch-pop" style="display:none;">
        <button data-act="panel">🗂 打开搜索面板</button>
        <button data-act="copy">🔗 复制本页链接</button>
        <button data-act="send">⬇ 发送直链到下载器</button>
        <button data-act="embed">🖼 内嵌解析</button>
        <button data-act="aix">🚀 启动 AIX 解析</button>
        <div class="wb-launch-note">仅对直链 / 你有权的内容生效；受 DRM 保护的流无法解析。AIX 为独立扩展，负责实际解析。</div>
      </div>
      <button class="wb-launch-btn" title="合规解析启动器（不提取受保护流）">⬇ 解析下载</button>`;
    safeAppend(lb);

    const btn = lb.querySelector('.wb-launch-btn');
    const pop = lb.querySelector('.wb-launch-pop');
    btn.onclick = (e) => { e.stopPropagation(); pop.style.display = pop.style.display === 'none' ? 'block' : 'none'; refreshLaunchNote(); };
    document.addEventListener('click', () => { pop.style.display = 'none'; });

    pop.querySelectorAll('button').forEach((b) => {
      b.onclick = (e) => {
        e.stopPropagation();
        const act = b.dataset.act;
        if (act === 'panel') {
          const panel = $('#wb-panel'); const fab = $('#wb-fab');
          if (panel) panel.style.display = 'block';
          if (fab) fab.style.display = 'none';
        } else if (act === 'copy') {
          GM_setClipboard(location.href); toast('已复制本页链接');
        } else if (act === 'send') {
          let url = '';
          if (/^https?:\/\/.+\.(mp4|mkv|webm|mov|flv|m3u8|ts)(\?|#|$)/i.test(location.href)) url = location.href;
          if (!url) { const found = collectMediaLinks(); if (found.length) url = found[0]; }
          if (!url) { toast('未检测到可直链（受保护流无法解析）'); pop.style.display = 'none'; return; }
          const mi = $('#wb-magnet'); if (mi) mi.value = url; // 同步到下载框，方便查看
          const d = DOWNLOADERS.filter((x) => x.enabled)[0];
          if (!d) { toast('没有启用的下载器'); pop.style.display = 'none'; return; }
          sendTo(d, url);
          refreshLaunchNote();
        } else if (act === 'embed') {
          buildParseFrame();
          const f = $('#wb-pf-iframe');
          const s = currentParseService();
          f.src = s.url.replace('{u}', encodeURIComponent(location.href));
          $('#wb-parse-frame').style.display = 'block';
          toast('已内嵌「' + s.name + '」（若站点禁止内嵌，点「↗」新标签打开）');
        } else if (act === 'aix') {
          // 合规启动：仅跳转/打开 AIX 扩展并复制本页链接，解析逻辑由 AIX 自身完成
          GM_setClipboard(location.href);
          let aixId = '';
          try { aixId = GM_getValue('wb_aix_id', ''); } catch (_) {}
          if (!aixId) {
            const input = prompt('未配置 AIX 扩展 ID。\n请在 chrome://extensions 开启「开发者模式」后，复制「AIX 智能下载器」对应的 ID 粘贴到这里（留空则仅复制本页链接）：', '');
            if (input && input.trim()) { aixId = input.trim(); try { GM_setValue('wb_aix_id', aixId); } catch (_) {} }
          }
          if (aixId) {
            try { GM_openInTab('chrome-extension://' + aixId + '/popup/popup.html', true); } catch (_) {}
            toast('已尝试启动 AIX 并复制本页链接；若未弹出页面，请点击浏览器工具栏的 AIX 图标');
          } else {
            toast('已复制本页链接；请在 AIX 扩展中打开（点击工具栏图标）');
          }
        }
        pop.style.display = 'none';
      };
    });
  }

  /* ============================ 内嵌解析弹层（可切换服务） ============================ */
  function buildParseFrame() {
    if ($('#wb-parse-frame')) return;
    const el = document.createElement('div'); el.id = 'wb-parse-frame'; el.style.display = 'none';
    el.innerHTML = `
      <div class="wb-pf-mask"></div>
      <div class="wb-pf-box">
        <div class="wb-pf-head">
          <select id="wb-pf-sel" class="wb-pf-sel" title="切换解析服务"></select>
          <span class="wb-pf-acts">
            <span id="wb-pf-add" title="添加解析服务">＋</span>
            <span id="wb-pf-newtab" title="新标签打开">↗</span>
            <span id="wb-pf-close" title="关闭">✕</span>
          </span>
        </div>
        <iframe id="wb-pf-iframe" class="wb-pf-iframe" src="about:blank"></iframe>
      </div>`;
    safeAppend(el);

    const iframe = el.querySelector('#wb-pf-iframe');
    const sel = el.querySelector('#wb-pf-sel');

    const renderSel = () => {
      const list = getParseList(); const idx = getParseIdx();
      sel.innerHTML = '';
      list.forEach((s, i) => {
        const o = document.createElement('option'); o.value = String(i); o.textContent = s.name;
        if (i === idx) o.selected = true; sel.appendChild(o);
      });
    };
    const loadCurrent = () => {
      const s = currentParseService();
      iframe.src = s.url.replace('{u}', encodeURIComponent(location.href));
    };

    renderSel();
    sel.onchange = () => { GM_setValue(PARSE_IDX_KEY, +sel.value); loadCurrent(); };
    el.querySelector('.wb-pf-mask').onclick = () => { el.style.display = 'none'; };
    el.querySelector('#wb-pf-close').onclick = () => { el.style.display = 'none'; iframe.src = 'about:blank'; };
    el.querySelector('#wb-pf-newtab').onclick = () => {
      const s = currentParseService();
      GM_openInTab(s.url.replace('{u}', encodeURIComponent(location.href)), true);
    };
    el.querySelector('#wb-pf-add').onclick = () => {
      const name = prompt('解析服务名称：'); if (!name) return;
      let url = prompt('解析服务地址（用 {u} 表示当前页 URL）：', 'https://example.com/?url={u}');
      if (!url) return;
      if (!/^https?:\/\//i.test(url)) return toast('地址需以 http(s):// 开头');
      if (!url.includes('{u}')) url += (url.includes('?') ? '&' : '?') + 'url={u}';
      const list = getParseList(); list.push({ name, url });
      GM_setValue(PARSE_LIST_KEY, JSON.stringify(list));
      GM_setValue(PARSE_IDX_KEY, list.length - 1);
      renderSel(); loadCurrent();
      toast('已添加「' + name + '」');
    };
  }

  function renderPlatCfg(cfg) {
    cfg.innerHTML = '';
    PLATFORMS.forEach((p, idx) => {
      const wrap = document.createElement('div'); wrap.style.marginTop = '6px';
      wrap.innerHTML = `
        <label><input type="checkbox" data-i="${idx}" data-f="enabled" ${p.enabled ? 'checked' : ''}/> 启用 ${p.name}</label>
        <label>名称</label><input type="text" data-i="${idx}" data-f="name" value="${p.name}"/>
        <label>搜索地址（用 {q} 表示关键词）</label><input type="text" data-i="${idx}" data-f="url" value="${p.url}"/>
        <label>分组</label><input type="text" data-i="${idx}" data-f="group" value="${p.group || '其他'}"/>
        <div class="row" style="margin-top:4px;">
          <button class="gray" data-del="${idx}">删除</button>
        </div>`;
      cfg.appendChild(wrap);
    });
    const addWrap = document.createElement('div'); addWrap.style.marginTop = '8px';
    addWrap.innerHTML = `<button id="wb-plat-add" class="gray">+ 添加平台</button>`;
    cfg.appendChild(addWrap);
    const impWrap = document.createElement('div'); impWrap.style.marginTop = '6px';
    impWrap.innerHTML = `<button id="wb-plat-import" class="gray">⇩ 导入官方预设平台</button>`;
    cfg.appendChild(impWrap);
    $('#wb-plat-import', cfg).onclick = () => {
      let added = 0;
      DEFAULT_PLATFORMS.forEach((dp) => {
        if (!PLATFORMS.some((p) => p.name === dp.name)) { PLATFORMS.push({ ...dp }); added++; }
      });
      if (added) { setArr(PLAT_KEY, PLATFORMS); renderPlatCfg(cfg); renderPlatChips(); toast('已导入 ' + added + ' 个预设平台'); }
      else toast('预设平台已齐全');
    };
    cfg.querySelectorAll('input').forEach((inp) => {
      inp.onchange = () => {
        const i = +inp.dataset.i, f = inp.dataset.f;
        if (f === 'enabled') PLATFORMS[i].enabled = inp.checked;
        else PLATFORMS[i][f] = inp.value;
        setArr(PLAT_KEY, PLATFORMS); toast('已保存');
        if (f === 'enabled' || f === 'name' || f === 'url' || f === 'group') renderPlatChips();
      };
    });
    cfg.querySelectorAll('[data-del]').forEach((b) => {
      b.onclick = () => { PLATFORMS.splice(+b.dataset.del, 1); setArr(PLAT_KEY, PLATFORMS); renderPlatCfg(cfg); renderPlatChips(); };
    });
    $('#wb-plat-add', cfg).onclick = () => {
      PLATFORMS.push({ name: '新平台', url: 'https://example.com/search?q={q}', enabled: true, group: '其他' });
      setArr(PLAT_KEY, PLATFORMS); renderPlatCfg(cfg); renderPlatChips();
    };
  }

  function groupCollapsed(g) {
    if (g in GROUP_STATE) return GROUP_STATE[g];
    return GROUP_COLLAPSED[g] || false;
  }
  function setGroupCollapsed(g, v) {
    GROUP_STATE[g] = v; GM_setValue('wb_group_state', GROUP_STATE);
  }
  function platformGroups() {
    const map = {};
    PLATFORMS.forEach((p) => { const g = p.group || '其他'; (map[g] = map[g] || []).push(p); });
    const groups = [];
    GROUP_ORDER.forEach((g) => { if (map[g]) { groups.push([g, map[g]]); delete map[g]; } });
    Object.keys(map).forEach((g) => groups.push([g, map[g]])); // 其余分组排在后面
    return groups;
  }
  function renderPlatChips() {
    const box = $('#wb-plat-chips'); if (!box) return;
    box.innerHTML = '';
    platformGroups().forEach(([g, list]) => {
      const enabled = list.filter((p) => p.enabled);
      const collapsed = groupCollapsed(g);
      const wrap = document.createElement('div'); wrap.className = 'pgroup';
      const head = document.createElement('div'); head.className = 'pgroup-h';
      head.innerHTML = `<span class="pg-arrow">${collapsed ? '▸' : '▾'}</span>`
        + `<span class="pg-name">${g}</span>`
        + `<span class="pg-count">${enabled.length}</span>`;
      const chips = document.createElement('div'); chips.className = 'chips pg-chips' + (collapsed ? ' collapsed' : '');
      if (enabled.length) {
        enabled.forEach((p) => {
          const c = document.createElement('span'); c.className = 'chip'; c.textContent = p.name;
          if (!p.url.includes('{q}')) c.title = '（无网页搜索，点击打开官网）';
          c.onclick = () => GM_openInTab(p.url.replace('{q}', enc($('#wb-q').value || '')), true);
          chips.appendChild(c);
        });
      } else {
        chips.innerHTML = '<span style="color:#bbb;font-size:12px;">（无启用的平台）</span>';
      }
      head.onclick = () => { setGroupCollapsed(g, !groupCollapsed(g)); renderPlatChips(); };
      wrap.append(head, chips); box.appendChild(wrap);
    });
  }

  function renderDlCfg(cfg) {
    cfg.innerHTML = '';
    DOWNLOADERS.forEach((d, idx) => {
      const wrap = document.createElement('div'); wrap.style.marginTop = '8px';
      let html = `<label><input type="checkbox" data-i="${idx}" data-f="enabled" ${d.enabled ? 'checked' : ''}/> 启用 ${d.name}（${d.type}）</label>`;
      ['webui', 'rpc', 'api', 'user', 'pass', 'token'].forEach((f) => {
        if (d[f] !== undefined) html += `<label>${f}</label><input type="text" data-i="${idx}" data-f="${f}" value="${d[f] || ''}"/>`;
      });
      if (d.note) html += `<label>说明</label><input type="text" data-i="${idx}" data-f="note" value="${d.note || ''}"/>`;
      wrap.innerHTML = html; cfg.appendChild(wrap);
    });
    cfg.querySelectorAll('input').forEach((inp) => {
      inp.onchange = () => {
        const i = +inp.dataset.i, f = inp.dataset.f;
        DOWNLOADERS[i][f] = inp.type === 'checkbox' ? inp.checked : inp.value;
        setArr(DL_KEY, DOWNLOADERS); toast('已保存');
      };
    });
  }

  function drag(el, handle) {
    let sx, sy, ox, oy, on = false;
    handle.onmousedown = (e) => { on = true; sx = e.clientX; sy = e.clientY;
      const r = el.getBoundingClientRect(); ox = r.left; oy = r.top; e.preventDefault(); };
    document.onmousemove = (e) => { if (!on) return;
      el.style.left = (ox + e.clientX - sx) + 'px'; el.style.top = (oy + e.clientY - sy) + 'px';
      el.style.right = 'auto'; el.style.bottom = 'auto'; };
    document.onmouseup = () => { on = false; };
  }

  // 采集当前页中的直链（<video>/<source> 的 src，以及指向媒体文件的 <a href>）
  // 仅匹配 http(s) 直链 + 媒体扩展名；blob:/data: 与受保护流不在此列（属开放/自有内容范畴）
  function collectMediaLinks() {
    const ext = /\.(mp4|mkv|webm|mov|flv|m3u8|ts|mp3|m4a|aac)(\?|#|$)/i;
    const set = new Set();
    document.querySelectorAll('video').forEach((v) => {
      if (v.src && ext.test(v.src)) set.add(v.src);
      v.querySelectorAll('source').forEach((s) => { if (s.src && ext.test(s.src)) set.add(s.src); });
    });
    document.querySelectorAll('a[href]').forEach((a) => {
      const h = a.href;
      if (h && /^https?:/i.test(h) && ext.test(h)) set.add(h);
    });
    return [...set];
  }

  function refreshLaunchNote() {
    const lb = $('#wb-launch'); if (!lb) return;
    const note = lb.querySelector('.wb-launch-note'); if (!note) return;
    const n = collectMediaLinks().length;
    note.textContent = n
      ? ('本页检测到 ' + n + ' 个直链，可直接发送（仅对开放/自有内容生效）')
      : '仅对直链 / 你有权的内容生效；受 DRM 保护的流无法解析。';
  }

  function scanMagnets() {
    const inp = $('#wb-magnet'); if (!inp || inp.value) { refreshLaunchNote(); return; }
    const magnets = [...new Set([...document.querySelectorAll('a[href^="magnet:"]')].map((a) => a.href))];
    if (magnets.length) { inp.value = magnets[0]; refreshLaunchNote(); return; }
    const media = collectMediaLinks();
    if (media.length) inp.value = media[0];
    refreshLaunchNote();
  }

  function safeAppend(el) {
    try {
      if (document.body) document.body.appendChild(el);
      else document.documentElement.appendChild(el);
      return true;
    } catch (e) {
      // 某些站点 CSP 或沙箱限制会阻止直接 append；作为兜底再试一次
      try { document.documentElement.appendChild(el); return true; } catch (_) {}
      return false;
    }
  }

  function init() {
    try { buildUI(); } catch (e) { console.warn('[WB] buildUI failed', e); }
    try { buildLauncher(); } catch (e) { console.warn('[WB] buildLauncher failed', e); }
    try { applyTheme(); } catch (_) {}
    if (window.matchMedia) window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => { if (THEME === 'system') applyTheme(); });

    // 守卫：部分站点/SPA 会清理外部注入的节点，定时检查并在缺失时重建
    setInterval(() => {
      try {
        if (!$('#wb-fab')) { try { buildUI(); applyTheme(); } catch (e) { console.warn('[WB] rebuild UI failed', e); } }
        if (!$('#wb-launch')) { try { buildLauncher(); applyTheme(); } catch (e) { console.warn('[WB] rebuild launcher failed', e); } }
      } catch (_) {}
    }, 2500);
  }

  if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', init);
  else init();
})();