// ==UserScript==
// @name         手动广告屏蔽器
// @namespace    http://tampermonkey.net/
// @version      13.0
// @description  点击隐藏 + 位置记忆 + 网站备注 + 相似检测 + 跨域拦截（三档 + 黑白名单，全入口覆盖） + 广告类型 + 自动识别
// @author       You
// @match        *://*/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_registerMenuCommand
// @grant        GM_unregisterMenuCommand
// @grant        unsafeWindow
// @run-at       document-start
// ==/UserScript==

(function() {
'use strict';

var STORAGE_KEY = 'ab_mask_v2';
var REMARK_KEY = 'ab_host_remarks_v1';
var HIDE_MODE_KEY = 'ab_hide_mode_v1';
var AUTO_DETECT_KEY = 'ab_auto_detect_v1';
var JUMP_MODE_KEY = 'ab_jump_mode_v1';
var JUMP_BLACKLIST_KEY = 'ab_jump_blacklist_v1';
var JUMP_WHITELIST_KEY = 'ab_jump_whitelist_v1';
var HOST = location.hostname;
var MAX_Z = '2147483647';

var SIMILAR_THRESHOLD = 0.6;
var SIMILAR_MIN_GROUPS = 1;
var MAX_GROUP_CHILDREN = 30;

var DOMAIN_SUFFIXES = [
  'com.cn','net.cn','org.cn','gov.cn','edu.cn','co.uk','org.uk','me.uk','ac.uk',
  'co.jp','ne.jp','or.jp','com.au','net.au','org.au','com.hk','org.hk','com.tw','org.tw',
  'com','net','org','cn','cc','tv','vip','io','co','xyz','top','info','biz','me','pw',
  'live','online','site','club','app','dev','shop','store','work','fun','wang','ren',
  'la','link','pro','win','space','website'
];

function showToast(msg) {
  if (!document.body) return;
  var t = document.createElement('div');
  t.id = '__ab_toast';
  t.textContent = msg;
  t.style.cssText = 'position:fixed;top:80px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,0.88);color:#fff;padding:10px 20px;border-radius:20px;font-size:13px;font-family:system-ui;z-index:2147483646;pointer-events:none;max-width:88vw;text-align:center;';
  document.body.appendChild(t);
  setTimeout(function() { if (t.parentNode) t.parentNode.removeChild(t); }, 2600);
}

function cssEscape(s) {
  if (typeof CSS !== 'undefined' && CSS.escape) return CSS.escape(s);
  return String(s).replace(/[^a-zA-Z0-9_-]/g, function(ch) { return '\\' + ch; });
}
function getClassName(el) {
  if (!el || !el.className) return '';
  if (typeof el.className === 'string') return el.className;
  if (el.className.baseVal !== undefined) return el.className.baseVal;
  return '';
}
function generateSelector(el) {
  if (!el || el.nodeType !== 1) return '';
  if (el.id && el.id.indexOf('__ab_') !== 0) {
    try { if (document.querySelectorAll('#' + cssEscape(el.id)).length === 1) return '#' + cssEscape(el.id); } catch(e) {}
  }
  var tag = el.tagName.toLowerCase();
  var classes = getClassName(el).split(/\s+/).filter(function(c) {
    return c && c.indexOf('__ab_') !== 0 && c.length < 40 && !/^\d/.test(c) && !/^[a-f0-9]{8,}$/i.test(c);
  });
  if (classes.length > 0) {
    var full = tag + '.' + classes.map(cssEscape).join('.');
    try { var c1 = document.querySelectorAll(full).length; if (c1 >= 1 && c1 <= 30) return full; } catch(e) {}
    for (var i = 0; i < classes.length; i++) {
      var s = tag + '.' + cssEscape(classes[i]);
      try { var c2 = document.querySelectorAll(s).length; if (c2 >= 1 && c2 <= 30) return s; } catch(e) {}
    }
  }
  var parts = [], node = el, depth = 0;
  while (node && node !== document.documentElement && depth < 8) {
    var part = node.tagName.toLowerCase();
    if (node.id && node.id.indexOf('__ab_') !== 0) { parts.unshift('#' + cssEscape(node.id)); break; }
    var p = node.parentElement;
    if (p) {
      var sibs = Array.prototype.filter.call(p.children, function(c) { return c.tagName === node.tagName; });
      if (sibs.length > 1) part += ':nth-of-type(' + (sibs.indexOf(node) + 1) + ')';
    }
    parts.unshift(part);
    node = p;
    depth++;
  }
  return parts.join(' > ');
}
function isOurElement(el) {
  if (!el || el.nodeType !== 1) return false;
  if (el.id === '__ab_mask_doc_container' || el.id === '__ab_mask_fixed_container') return true;
  if (el.id && el.id.indexOf('__ab_') === 0) return true;
  if (el.closest && el.closest('#__ab_mask_doc_container, #__ab_mask_fixed_container')) return true;
  if (el.closest && el.closest('[id^="__ab_"]')) return true;
  return false;
}
function genId() { return 'r_' + Date.now().toString(36) + Math.random().toString(36).slice(2, 6); }
function genGroupId() { return 'g_' + Date.now().toString(36) + Math.random().toString(36).slice(2, 6); }
function genPosId() { return 'p_' + Date.now().toString(36) + Math.random().toString(36).slice(2, 6); }
function getDocSize() {
  var de = document.documentElement, b = document.body;
  return { w: Math.max(de ? de.scrollWidth : 0, b ? b.scrollWidth : 0, window.innerWidth), h: Math.max(de ? de.scrollHeight : 0, b ? b.scrollHeight : 0, window.innerHeight) };
}
function getScroll() {
  return { x: window.scrollX || window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0, y: window.scrollY || window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0 };
}
function getDepth(el) {
  var d = 0;
  while (el && el !== document.body && el !== document.documentElement) { d++; el = el.parentElement; }
  return d;
}

// ==================== 域名列表（黑白名单共用） ====================
var DomainList = {
  _cache: { black: null, white: null },
  _keyOf: function(type) { return type === 'white' ? JUMP_WHITELIST_KEY : JUMP_BLACKLIST_KEY; },
  load: function(type) {
    if (this._cache[type]) return this._cache[type];
    var key = this._keyOf(type);
    try { this._cache[type] = JSON.parse(GM_getValue(key, '[]')); } catch(e) { this._cache[type] = []; }
    if (!Array.isArray(this._cache[type])) this._cache[type] = [];
    return this._cache[type];
  },
  save: function(type) {
    var key = this._keyOf(type);
    try { GM_setValue(key, JSON.stringify(this._cache[type])); } catch(e) {}
  },
  stripSuffix: function(input) {
    var v = String(input || '').trim().toLowerCase();
    v = v.replace(/^https?:\/\//, '').replace(/^www\./, '').replace(/[\/?#].*$/, '');
    var sorted = DOMAIN_SUFFIXES.slice().sort(function(a, b) { return b.length - a.length; });
    for (var i = 0; i < sorted.length; i++) {
      var suf = '.' + sorted[i];
      if (v.length > suf.length && v.slice(-suf.length) === suf) return v.slice(0, -suf.length);
    }
    return v;
  },
  addMany: function(type, input) {
    var parts = String(input || '').split(/[,，\s\n\t]+/);
    var list = this.load(type);
    var added = 0;
    for (var i = 0; i < parts.length; i++) {
      var key = this.stripSuffix(parts[i]);
      if (!key) continue;
      if (list.indexOf(key) !== -1) continue;
      list.push(key);
      added++;
    }
    if (added > 0) this.save(type);
    return added;
  },
  remove: function(type, key) {
    var list = this.load(type);
    var idx = list.indexOf(key);
    if (idx === -1) return false;
    list.splice(idx, 1);
    this.save(type);
    return true;
  },
  clear: function(type) { this._cache[type] = []; this.save(type); },
  hit: function(type, hostname) {
    if (!hostname) return null;
    var h = String(hostname).toLowerCase();
    var list = this.load(type);
    for (var i = 0; i < list.length; i++) { if (list[i] && h.indexOf(list[i]) !== -1) return list[i]; }
    return null;
  }
};

// ==================== 跨域跳转拦截（全入口覆盖） ====================
var JumpBlocker = {
  mode: 'off',
  _installed: false,
  _W: null,
  _D: null,
  _bypass: null,

  load: function() {
    try {
      var m = GM_getValue(JUMP_MODE_KEY, 'off');
      if (m === 'off' || m === 'ask' || m === 'block') this.mode = m;
      else this.mode = 'off';
    } catch(e) { this.mode = 'off'; }
  },
  save: function() { try { GM_setValue(JUMP_MODE_KEY, this.mode); } catch(e) {} },
  cycle: function() {
    var next = this.mode === 'off' ? 'ask' : (this.mode === 'ask' ? 'block' : 'off');
    this.mode = next;
    this.save();
    registerMenu();
    var labels = {
      off: '跨域跳转拦截已关闭（不拦任何跨域跳转）',
      ask: '跨域跳转拦截：询问模式（拦下后弹提示条让你选）',
      block: '跨域跳转拦截：全拦模式（所有跨域跳转直接拦下）'
    };
    showToast(labels[next]);
  },
  getLabel: function() {
    if (this.mode === 'ask') return '询问';
    if (this.mode === 'block') return '全拦';
    return '关闭';
  },
  isCrossOrigin: function(url) {
    try {
      if (!url || typeof url !== 'string') return false;
      if (/^(data|about|blob|#|javascript|mailto|tel|sms|weixin|alipay|intent|market|taobao|tbopen|itms-apps|itms-services|chrome|chrome-extension|moz-extension):/i.test(url)) return false;
      var u = new URL(url, location.href);
      if (u.protocol !== 'http:' && u.protocol !== 'https:') return false;
      return u.host !== location.host;
    } catch(e) { return false; }
  },
  shouldBlock: function(url) {
    if (!url || typeof url !== 'string') return false;
    if (this._bypass) {
      var b = this._bypass;
      this._bypass = null;
      if (String(url) === b) return false;
    }
    if (this.mode === 'off') return false;
    var isCross = false;
    try { isCross = this.isCrossOrigin(url); } catch(e) {}
    if (!isCross) return false;
    var hostname = '';
    try { hostname = new URL(url, location.href).hostname; } catch(e) { return true; }
    var whiteHit = false;
    try { whiteHit = !!DomainList.hit('white', hostname); } catch(e) {}
    if (whiteHit) return false;
    var blackHit = false;
    try { blackHit = !!DomainList.hit('black', hostname); } catch(e) {}
    if (blackHit) return true;
    if (this.mode === 'block') return true;
    if (this.mode === 'ask') {
      try { this._showAskBar(url, hostname); } catch(e) {}
      return true;
    }
    return false;
  },
  // 带 try/catch 的封装：抛错时按 mode 兜底
  _checkBlock: function(url) {
    try {
      return this.shouldBlock(url);
    } catch(e) {
      return this.mode !== 'off';
    }
  },
  _doNavigate: function(url) {
    this._bypass = String(url);
    try { location.href = url; } catch(e) {}
  },
  _askBar: null,
  _askTimer: null,
  _showAskBar: function(url, hostname) {
    var self = this;
    if (this._askBar) {
      if (this._askBar.parentNode) this._askBar.parentNode.removeChild(this._askBar);
      this._askBar = null;
    }
    if (this._askTimer) { clearTimeout(this._askTimer); this._askTimer = null; }
    if (!document.body) return;

    var bar = document.createElement('div');
    bar.id = '__ab_ask_bar';
    bar.style.cssText = 'position:fixed;left:50%;bottom:20px;transform:translateX(-50%);'
      + 'background:rgba(0,0,0,0.88);color:#fff;padding:12px 16px;border-radius:22px;'
      + 'font-size:13px;font-family:system-ui;z-index:2147483647;'
      + 'box-shadow:0 4px 20px rgba(0,0,0,0.4);max-width:92vw;box-sizing:border-box;'
      + 'display:flex;flex-direction:column;gap:10px;align-items:center;';

    var line1 = document.createElement('div');
    line1.style.cssText = 'font-weight:600;word-break:break-all;text-align:center;font-size:13px;max-width:80vw;';
    line1.textContent = '🚫 ' + hostname;
    bar.appendChild(line1);

    var btnRow = document.createElement('div');
    btnRow.style.cssText = 'display:flex;gap:6px;justify-content:center;align-items:center;flex-wrap:nowrap;';

    var whiteBtn = document.createElement('button');
    whiteBtn.textContent = '白名';
    whiteBtn.style.cssText = 'padding:7px 14px;background:#34C759;color:#fff;border:none;border-radius:18px;font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;';
    whiteBtn.onclick = function() {
      var added = DomainList.addMany('white', hostname);
      var key = DomainList.stripSuffix(hostname);
      self._closeAskBar();
      if (added > 0) showToast('已加入白名单：' + key + '（以后自动放行）');
      else showToast('该域名已在白名单中');
      self._doNavigate(url);
    };
    btnRow.appendChild(whiteBtn);

    var blackBtn = document.createElement('button');
    blackBtn.textContent = '黑名';
    blackBtn.style.cssText = 'padding:7px 14px;background:#FF3B30;color:#fff;border:none;border-radius:18px;font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;';
    blackBtn.onclick = function() {
      var added = DomainList.addMany('black', hostname);
      var key = DomainList.stripSuffix(hostname);
      self._closeAskBar();
      if (added > 0) showToast('已加入黑名单：' + key + '（以后自动拦）');
      else showToast('该域名已在黑名单中');
    };
    btnRow.appendChild(blackBtn);

    var passBtn = document.createElement('button');
    passBtn.textContent = '放行';
    passBtn.style.cssText = 'padding:7px 14px;background:#007AFF;color:#fff;border:none;border-radius:18px;font-size:12px;font-weight:600;cursor:pointer;white-space:nowrap;';
    passBtn.onclick = function() { self._closeAskBar(); self._doNavigate(url); };
    btnRow.appendChild(passBtn);

    var closeBtn = document.createElement('button');
    closeBtn.textContent = '✕';
    closeBtn.style.cssText = 'padding:0;background:#FF9500;color:#fff;border:none;border-radius:50%;font-size:12px;font-weight:700;cursor:pointer;width:30px;height:30px;display:flex;align-items:center;justify-content:center;flex-shrink:0;';
    closeBtn.onclick = function() { self._closeAskBar(); };
    btnRow.appendChild(closeBtn);

    bar.appendChild(btnRow);
    document.body.appendChild(bar);
    this._askBar = bar;
    this._askTimer = setTimeout(function() { self._closeAskBar(); }, 5000);
  },
  _closeAskBar: function() {
    if (this._askTimer) { clearTimeout(this._askTimer); this._askTimer = null; }
    if (this._askBar) {
      if (this._askBar.parentNode) this._askBar.parentNode.removeChild(this._askBar);
      this._askBar = null;
    }
  },
  _isAnchor: function(node) {
    if (!node || !node.tagName) return false;
    var tn = node.tagName;
    if (tn === 'A' || tn === 'a' || tn === 'AREA' || tn === 'area') return true;
    return false;
  },
  _getHref: function(a) {
    if (!a) return '';
    return a.getAttribute('href') || a.getAttribute('xlink:href') || a.href || '';
  },
  _def: function(obj, prop, buildDesc) {
    try {
      if (!obj || !prop) return;
      var desc = Object.getOwnPropertyDescriptor(obj, prop);
      if (!desc) return;
      if (desc.configurable === false) return;
      var nd = buildDesc(desc);
      if (!nd) return;
      Object.defineProperty(obj, prop, nd);
    } catch(e) {}
  },
  install: function() {
    if (this._installed) return;
    this._installed = true;
    var W = (typeof unsafeWindow !== 'undefined') ? unsafeWindow : window;
    var D = W.document;
    var self = this;
    this._W = W;
    this._D = D;

    // ========== 1. Location.prototype.href setter ==========
    this._def(W.Location.prototype, 'href', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self._checkBlock(String(v))) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 2. Location.prototype.assign ==========
    this._def(W.Location.prototype, 'assign', function(d) {
      if (!d || !d.value) return null;
      var o = d.value;
      return {
        value: function(u) { if (self._checkBlock(String(u))) return; return o.apply(this, arguments); },
        writable: true, configurable: true,
        enumerable: d.enumerable !== undefined ? d.enumerable : false
      };
    });

    // ========== 3. Location.prototype.replace ==========
    this._def(W.Location.prototype, 'replace', function(d) {
      if (!d || !d.value) return null;
      var o = d.value;
      return {
        value: function(u) { if (self._checkBlock(String(u))) return; return o.apply(this, arguments); },
        writable: true, configurable: true,
        enumerable: d.enumerable !== undefined ? d.enumerable : false
      };
    });

    // ========== 4. Location.prototype.protocol setter ==========
    this._def(W.Location.prototype, 'protocol', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) {
          if (self.mode !== 'off') {
            var cur = location.protocol;
            var nv = String(v);
            if (nv.charAt(nv.length - 1) !== ':') nv += ':';
            if (nv !== cur && nv !== 'http:' && nv !== 'https:') return;
          }
          return o.call(this, v);
        },
        enumerable: true, configurable: true
      };
    });

    // ========== 5. Location.prototype.host setter ==========
    this._def(W.Location.prototype, 'host', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self.mode !== 'off' && String(v) !== location.host) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 6. Location.prototype.hostname setter ==========
    this._def(W.Location.prototype, 'hostname', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self.mode !== 'off' && String(v) !== location.hostname) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 7. Location.prototype.port setter ==========
    this._def(W.Location.prototype, 'port', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self.mode !== 'off' && String(v) !== location.port) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 8. Location.prototype.search setter（原样放行） ==========
    this._def(W.Location.prototype, 'search', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 9. Location.prototype.hash setter（原样放行） ==========
    this._def(W.Location.prototype, 'hash', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 10. window.open ==========
    this._def(W, 'open', function(d) {
      if (!d || !d.value) return null;
      var o = d.value;
      return {
        value: function(url) { if (url && self._checkBlock(String(url))) return null; return o.apply(this, arguments); },
        writable: true, configurable: true,
        enumerable: d.enumerable !== undefined ? d.enumerable : false
      };
    });

    // ========== 11. history.pushState ==========
    try {
      var origPush = W.history.pushState;
      W.history.pushState = function() {
        var url = arguments[2];
        if (url && self.mode !== 'off' && typeof url === 'string') {
          try { var abs = new URL(url, location.href); if (abs.host !== location.host) return; } catch(e) {}
        }
        return origPush.apply(this, arguments);
      };
    } catch(e) {}

    // ========== 12. history.replaceState ==========
    try {
      var origReplace = W.history.replaceState;
      W.history.replaceState = function() {
        var url = arguments[2];
        if (url && self.mode !== 'off' && typeof url === 'string') {
          try { var abs = new URL(url, location.href); if (abs.host !== location.host) return; } catch(e) {}
        }
        return origReplace.apply(this, arguments);
      };
    } catch(e) {}

    // ========== 13. Document.prototype.domain setter（禁掉） ==========
    this._def(W.Document.prototype, 'domain', function(d) {
      if (!d || !d.set) return null;
      return {
        get: d.get,
        set: function() { return; },
        enumerable: true, configurable: true
      };
    });

    // ========== 14. Document.prototype.location setter ==========
    this._def(W.Document.prototype, 'location', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self._checkBlock(String(v))) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 15. HTMLAnchorElement.prototype.click ==========
    this._def(W.HTMLAnchorElement.prototype, 'click', function(d) {
      if (!d || !d.value) return null;
      var o = d.value;
      return {
        value: function() {
          var h = self._getHref(this);
          if (h && self._checkBlock(h)) return;
          return o.apply(this, arguments);
        },
        writable: true, configurable: true,
        enumerable: d.enumerable !== undefined ? d.enumerable : false
      };
    });

    // ========== 16. HTMLAreaElement.prototype.href ==========
    this._def(W.HTMLAreaElement.prototype, 'href', function(d) {
      if (!d || !d.set) return null;
      var o = d.set;
      return {
        get: d.get,
        set: function(v) { if (self._checkBlock(String(v))) return; return o.call(this, v); },
        enumerable: true, configurable: true
      };
    });

    // ========== 17. HTMLEmbedElement.prototype.src ==========
    try {
      this._def(W.HTMLEmbedElement.prototype, 'src', function(d) {
        if (!d || !d.set) return null;
        var o = d.set;
        return {
          get: d.get,
          set: function(v) { if (self._checkBlock(String(v))) return; return o.call(this, v); },
          enumerable: true, configurable: true
        };
      });
    } catch(e) {}

    // ========== 18. HTMLObjectElement.prototype.data ==========
    try {
      this._def(W.HTMLObjectElement.prototype, 'data', function(d) {
        if (!d || !d.set) return null;
        var o = d.set;
        return {
          get: d.get,
          set: function(v) { if (self._checkBlock(String(v))) return; return o.call(this, v); },
          enumerable: true, configurable: true
        };
      });
    } catch(e) {}

    // ========== 19. HTMLFormElement.prototype.submit ==========
    try {
      var origFormSubmit = W.HTMLFormElement.prototype.submit;
      W.HTMLFormElement.prototype.submit = function() {
        if (self.mode !== 'off') {
          var action = this.getAttribute('action') || this.action || '';
          if (action && self._checkBlock(action)) return;
        }
        return origFormSubmit.apply(this, arguments);
      };
    } catch(e) {}

    // ========== 20. HTMLFormElement.prototype.requestSubmit ==========
    try {
      var origReqSubmit = W.HTMLFormElement.prototype.requestSubmit;
      if (origReqSubmit) {
        W.HTMLFormElement.prototype.requestSubmit = function() {
          if (self.mode !== 'off') {
            var action = this.getAttribute('action') || this.action || '';
            if (action && self._checkBlock(action)) return;
          }
          return origReqSubmit.apply(this, arguments);
        };
      }
    } catch(e) {}

    // ========== 21. <a>/<area> 点击/触摸/鼠标捕获 ==========
    var blockAnchorEvent = function(e) {
      if (self.mode === 'off') return;
      if (e.defaultPrevented) return;
      var node = e.target;
      var a = null, guard = 0;
      while (node && guard < 30) {
        if (self._isAnchor(node)) { a = node; break; }
        node = node.parentElement || node.parentNode;
        guard++;
        if (!node || node.nodeType !== 1) break;
      }
      if (!a) return;
      var href = self._getHref(a);
      if (!href || href.charAt(0) === '#') return;
      if (/^javascript:/i.test(href)) return;
      if (!self.isCrossOrigin(href)) return;
      if (self._checkBlock(href)) { e.preventDefault(); e.stopPropagation(); if (e.stopImmediatePropagation) e.stopImmediatePropagation(); }
    };
    try { D.addEventListener('click', blockAnchorEvent, true); } catch(e) {}
    try { D.addEventListener('mousedown', blockAnchorEvent, true); } catch(e) {}
    try { D.addEventListener('touchstart', blockAnchorEvent, true); } catch(e) {}
    try { D.addEventListener('pointerdown', blockAnchorEvent, true); } catch(e) {}

    // ========== 22. form submit 事件捕获 ==========
    try {
      D.addEventListener('submit', function(e) {
        if (self.mode === 'off') return;
        if (e.defaultPrevented) return;
        var form = e.target;
        if (!form || form.tagName !== 'FORM') return;
        var submitter = e.submitter;
        var action = '';
        if (submitter && submitter.getAttribute) {
          var fa = submitter.getAttribute('formaction');
          if (fa) action = fa;
        }
        if (!action) action = form.getAttribute('action') || form.action || '';
        if (!action) return;
        if (action.charAt(0) === '#' || action.charAt(0) === '/') return;
        if (/^javascript:/i.test(action)) return;
        if (self._checkBlock(action)) { e.preventDefault(); e.stopPropagation(); if (e.stopImmediatePropagation) e.stopImmediatePropagation(); }
      }, true);
    } catch(e) {}

    // ========== 23. document.write / writeln hook ==========
    try {
      var origWrite = D.write;
      var origWriteln = D.writeln;
      D.write = function() {
        if (self.mode !== 'off') {
          for (var i = 0; i < arguments.length; i++) {
            var s = arguments[i];
            if (typeof s !== 'string') continue;
            var m = s.match(/location\s*(?:\.href)?\s*=\s*['"]([^'"]+)['"]/i);
            if (m && m[1] && self._checkBlock(m[1])) return;
            m = s.match(/location\.(?:replace|assign)\s*\(\s*['"]([^'"]+)['"]/i);
            if (m && m[1] && self._checkBlock(m[1])) return;
            m = s.match(/window\.open\s*\(\s*['"]([^'"]+)['"]/i);
            if (m && m[1] && self._checkBlock(m[1])) return;
            m = s.match(/location\.host(?:name)?\s*=\s*['"]([^'"]+)['"]/i);
            if (m && m[1] && m[1] !== location.hostname) return;
          }
        }
        return origWrite.apply(this, arguments);
      };
      D.writeln = function() {
        if (self.mode !== 'off') {
          for (var i = 0; i < arguments.length; i++) {
            var s = arguments[i];
            if (typeof s !== 'string') continue;
            var m = s.match(/location\s*(?:\.href)?\s*=\s*['"]([^'"]+)['"]/i);
            if (m && m[1] && self._checkBlock(m[1])) return;
          }
        }
        return origWriteln.apply(this, arguments);
      };
    } catch(e) {}

    // ========== 24. meta refresh / base / link prefetch 监视 ==========
    try {
      var checkNode = function(node) {
        if (self.mode === 'off' || !node || node.nodeType !== 1) return;
        var tag = node.tagName;
        if (tag === 'META') {
          var eq = (node.getAttribute('http-equiv') || '').toLowerCase();
          if (eq === 'refresh') {
            var c = node.getAttribute('content') || '';
            var m = c.match(/url\s*=\s*['"]?([^'"\s>]+)/i);
            if (m && m[1] && self.isCrossOrigin(m[1])) {
              var host = '';
              try { host = new URL(m[1], location.href).hostname; } catch(e) {}
              if (DomainList.hit('white', host)) return;
              if (DomainList.hit('black', host) || self.mode === 'block') node.remove();
            }
          }
        } else if (tag === 'BASE') {
          var bh = node.getAttribute('href');
          if (bh && self.isCrossOrigin(bh)) node.removeAttribute('href');
        } else if (tag === 'LINK') {
          var rel = (node.getAttribute('rel') || '').toLowerCase();
          if (rel === 'prefetch' || rel === 'prerender' || rel === 'preload') {
            var lh = node.getAttribute('href');
            if (lh && self.isCrossOrigin(lh)) node.remove();
          }
        }
      };
      var mo = new MutationObserver(function(muts) {
        if (self.mode === 'off') return;
        muts.forEach(function(mu) {
          mu.addedNodes.forEach(function(n) {
            if (!n || n.nodeType !== 1) return;
            checkNode(n);
            if (n.querySelectorAll) {
              try {
                var nodes = n.querySelectorAll('meta[http-equiv="refresh"], base[href], link[rel]');
                for (var i = 0; i < nodes.length; i++) checkNode(nodes[i]);
              } catch(e) {}
            }
          });
          if (mu.type === 'attributes' && mu.target) checkNode(mu.target);
        });
      });
      var observeTarget = function() {
        var t = D.documentElement || D;
        if (!t) return;
        try { mo.observe(t, { childList: true, subtree: true, attributes: true, attributeFilter: ['href', 'content'] }); } catch(e) {}
        try {
          var nodes = D.querySelectorAll('meta[http-equiv="refresh"], base[href], link[rel]');
          for (var i = 0; i < nodes.length; i++) checkNode(nodes[i]);
        } catch(e) {}
      };
      if (D.documentElement) observeTarget();
      else if (D.addEventListener) D.addEventListener('DOMContentLoaded', observeTarget, { once: true });
    } catch(e) {}

    // ========== 25. 同源 iframe hook ==========
    try {
      var hookFrame = function(frame) {
        if (!frame || frame.tagName !== 'IFRAME') return;
        try {
          var cd = frame.contentDocument;
          if (!cd || cd.__ab_hooked__) return;
          cd.__ab_hooked__ = true;
          var frameBlock = function(e) {
            if (self.mode === 'off') return;
            if (e.defaultPrevented) return;
            var node = e.target;
            var a = null, guard = 0;
            while (node && guard < 30) {
              if (self._isAnchor(node)) { a = node; break; }
              node = node.parentElement || node.parentNode;
              guard++;
              if (!node || node.nodeType !== 1) break;
            }
            if (!a) return;
            var target = (a.getAttribute('target') || '').toLowerCase();
            if (target !== '_top' && target !== '_parent') return;
            var href = self._getHref(a);
            if (!href || href.charAt(0) === '#') return;
            if (/^javascript:/i.test(href)) return;
            if (!self.isCrossOrigin(href)) return;
            if (self._checkBlock(href)) { e.preventDefault(); e.stopPropagation(); if (e.stopImmediatePropagation) e.stopImmediatePropagation(); }
          };
          cd.addEventListener('click', frameBlock, true);
          cd.addEventListener('mousedown', frameBlock, true);
          cd.addEventListener('touchstart', frameBlock, true);
          cd.addEventListener('pointerdown', frameBlock, true);
        } catch(e) {}
      };
      try {
        var initialFrames = D.querySelectorAll('iframe');
        for (var fi = 0; fi < initialFrames.length; fi++) hookFrame(initialFrames[fi]);
      } catch(e) {}
      try {
        var iframeMo = new MutationObserver(function(muts) {
          muts.forEach(function(mu) {
            mu.addedNodes.forEach(function(n) {
              if (!n || n.nodeType !== 1) return;
              if (n.tagName === 'IFRAME') hookFrame(n);
              if (n.querySelectorAll) {
                try {
                  var iframes = n.querySelectorAll('iframe');
                  for (var k = 0; k < iframes.length; k++) hookFrame(iframes[k]);
                } catch(e) {}
              }
            });
          });
        });
        var iframeTarget = D.documentElement || D;
        if (iframeTarget) iframeMo.observe(iframeTarget, { childList: true, subtree: true });
      } catch(e) {}
      try {
        D.addEventListener('load', function(e) {
          if (e.target && e.target.tagName === 'IFRAME') hookFrame(e.target);
        }, true);
      } catch(e) {}
    } catch(e) {}

    // ========== 26. Navigation API ==========
    try {
      if (W.navigation && typeof W.navigation.navigate === 'function') {
        var origNav = W.navigation.navigate;
        W.navigation.navigate = function(url) {
          if (self.mode !== 'off' && self._checkBlock(url)) {
            return { committed: Promise.reject(new Error('blocked')), finished: Promise.reject(new Error('blocked')) };
          }
          return origNav.apply(this, arguments);
        };
      }
      if (W.navigation && typeof W.navigation.addEventListener === 'function') {
        W.navigation.addEventListener('navigate', function(e) {
          if (self.mode === 'off') return;
          if (e.destination && e.destination.url) {
            var block = false;
            try { block = self.shouldBlock(e.destination.url); } catch(ex) { block = self.mode !== 'off'; }
            if (block) { try { e.preventDefault(); } catch(ex) {} }
          }
        });
      }
    } catch(e) {}
  }
};

JumpBlocker.load();
JumpBlocker.install();

var _hideModeCache = null;
function getAllHideModes() {
  if (_hideModeCache) return _hideModeCache;
  try { _hideModeCache = JSON.parse(GM_getValue(HIDE_MODE_KEY, '{}')); } catch(e) { _hideModeCache = {}; }
  return _hideModeCache;
}
function getHideMode() {
  var m = getAllHideModes()[HOST];
  if (m === 'keep' || m === 'clean' || m === 'smart') return m;
  return 'smart';
}
function setHideMode(mode) {
  if (mode !== 'keep' && mode !== 'clean' && mode !== 'smart') return;
  var all = getAllHideModes();
  all[HOST] = mode;
  _hideModeCache = all;
  try { GM_setValue(HIDE_MODE_KEY, JSON.stringify(all)); } catch(e) {}
}
function getHideModeLabel(m) {
  if (m === 'keep') return '留白防检测';
  if (m === 'clean') return '干净不留白';
  return '智能判断';
}
function getHideModeHint(m) {
  if (m === 'keep') return '内容不回流，防检测强';
  if (m === 'clean') return '内容回流，页面不留白';
  return '自动判断广告类型';
}
function smartDecideMode(el) {
  if (!el || el.nodeType !== 1) return 'clean';
  if (el.tagName === 'IFRAME') return 'keep';
  try {
    var cs = window.getComputedStyle(el);
    if (cs && cs.position === 'fixed') {
      var r = el.getBoundingClientRect();
      if (r.width > 0 && r.height > 0 && r.width < window.innerWidth * 0.85 && r.height < window.innerHeight * 0.6) return 'keep';
    }
  } catch(e) {}
  var name = (String(el.className || '') + ' ' + String(el.id || '')).toLowerCase();
  if (/(^|[\s_\-.])(ad|ads|advert|advertising|banner|sponsor|promo|tuiguang|gg)([\s_\-.]|$)/i.test(name)) return 'keep';
  return 'clean';
}
function resolveModeForElement(el) {
  var m = getHideMode();
  if (m === 'keep') return 'keep';
  if (m === 'clean') return 'clean';
  return smartDecideMode(el);
}

var _autoDetectCache = null;
function getAllAutoDetect() {
  if (_autoDetectCache) return _autoDetectCache;
  try { _autoDetectCache = JSON.parse(GM_getValue(AUTO_DETECT_KEY, '{}')); } catch(e) { _autoDetectCache = {}; }
  return _autoDetectCache;
}
function getAutoDetectLevel() {
  var m = getAllAutoDetect()[HOST];
  if (m === 'off' || m === 'conservative' || m === 'aggressive') return m;
  return 'off';
}
function setAutoDetectLevel(level) {
  if (level !== 'off' && level !== 'conservative' && level !== 'aggressive') return;
  var all = getAllAutoDetect();
  all[HOST] = level;
  _autoDetectCache = all;
  try { GM_setValue(AUTO_DETECT_KEY, JSON.stringify(all)); } catch(e) {}
}
function getAutoDetectLabel(l) {
  if (l === 'conservative') return '保守';
  if (l === 'aggressive') return '激进';
  return '关闭';
}
function getAutoDetectHint(l) {
  if (l === 'conservative') return '只抓确定是广告的，几乎不误伤';
  if (l === 'aggressive') return '含赌博广告识别，可能误伤正常内容';
  return '不自动扫描，纯手动';
}
var AUTO_CONSERVATIVE_SELECTORS = [
  'ins.adsbygoogle','[data-ad-slot]','[data-ad-client]','[data-tuiguang]','[class*="ec-tuiguang"]',
  'iframe[src*="doubleclick.net"]','iframe[src*="googlesyndication"]','iframe[src*="cpro.baidu.com"]','iframe[src*="pos.baidu.com"]',
  '[class*="adsbygoogle"]','[class*="advertisement"]','[class*="ad-container"]','[class*="ad-wrapper"]'
];
var AUTO_AGGRESSIVE_WORD_RE = /(^|[\s_\-.])(ad|ads|banner|promo|sponsor|tuiguang|gg)([\s_\-.]|$)/i;
var AUTO_STD_SIZES = [[300,250],[728,90],[320,100],[336,280],[970,90],[970,250],[300,50],[250,250],[200,200]];
var GAMBLING_URL_KEYWORDS = ['dubo','casino','bet','poker','gamble','gambling','22bet','11x','xpj','bwin','1xbet','bet365','/bc/','cp-','qp-','ty-','jy-','ky-','hgw','hg0088','188bet','sbobet','dafa','macau'];
var GAMBLING_CN_KEYWORDS = ['赌博','博彩','赌场','娱乐城','真人视讯','真人娱乐','电子游艺','电子游戏','体育博彩','彩票','棋牌','真人荷官','在线娱乐','在线赌场','首存','彩金','注册送','充值送','返水','首充','长期稳定','澳门','新葡京','威尼斯人','太阳城','新澳门','金沙','永利','美高梅','六合','马会','赛马','香港六合','六合彩','时时彩','百家乐','龙虎','牛牛','炸金花','老虎机','轮盘','包赢','稳赚','包赔'];
var GAMBLING_DOMAIN_BLACKLIST = ['22bet','11x','1xbet','bet365','bwin','sbobet','dafa','hgw','hg0088','188bet','xpj','macau','dubo','casino','poker','gambling'];
function urlHasGamblingKeyword(url) {
  if (!url || typeof url !== 'string') return false;
  var lower = url.toLowerCase();
  for (var i = 0; i < GAMBLING_URL_KEYWORDS.length; i++) { if (lower.indexOf(GAMBLING_URL_KEYWORDS[i]) !== -1) return true; }
  return false;
}
function urlInGamblingBlacklist(url) {
  if (!url || typeof url !== 'string') return false;
  try {
    var u = new URL(url, location.href);
    var host = u.hostname.toLowerCase();
    for (var i = 0; i < GAMBLING_DOMAIN_BLACKLIST.length; i++) { if (host.indexOf(GAMBLING_DOMAIN_BLACKLIST[i]) !== -1) return true; }
  } catch(e) {}
  return false;
}
function textHasGamblingCN(text) {
  if (!text || typeof text !== 'string') return false;
  for (var i = 0; i < GAMBLING_CN_KEYWORDS.length; i++) { if (text.indexOf(GAMBLING_CN_KEYWORDS[i]) !== -1) return true; }
  return false;
}
function checkGamblingAd(el) {
  if (!el || el.nodeType !== 1) return null;
  var signals = 0, strongHit = false;
  var tag = el.tagName;
  var img = null;
  if (tag === 'IMG') img = el;
  else if (el.querySelector) img = el.querySelector('img');
  var link = null;
  if (tag === 'A') link = el;
  else if (el.closest) link = el.closest('a');
  if (!link && el.querySelector) link = el.querySelector('a');
  if (img) {
    var src = img.getAttribute('src') || img.getAttribute('data-src') || img.src || '';
    if (urlHasGamblingKeyword(src)) signals++;
    if (urlInGamblingBlacklist(src)) { signals += 3; strongHit = true; }
    var alt = img.getAttribute('alt') || '';
    if (textHasGamblingCN(alt)) signals++;
  }
  var ownText = '';
  try { ownText = (el.textContent || '').slice(0, 500); } catch(e) {}
  if (textHasGamblingCN(ownText)) signals++;
  var selfAttrs = String(el.className || '') + ' ' + String(el.id || '') + ' ' + String(el.getAttribute('title') || '');
  if (urlHasGamblingKeyword(selfAttrs)) signals++;
  if (link) {
    var href = link.getAttribute('href') || link.href || '';
    if (urlHasGamblingKeyword(href)) signals++;
    if (urlInGamblingBlacklist(href)) { signals += 3; strongHit = true; }
  }
  if (strongHit) return 'strong';
  if (signals >= 2) return 'strong';
  if (signals === 1) return 'weak';
  return null;
}
function runAutoDetect() {
  var level = getAutoDetectLevel();
  if (level === 'off') return 0;
  if (!document.body) return 0;
  var seen = new WeakSet();
  var candidates = [];
  AUTO_CONSERVATIVE_SELECTORS.forEach(function(sel) {
    try {
      var els = document.querySelectorAll(sel);
      for (var i = 0; i < els.length; i++) {
        var el = els[i];
        if (seen.has(el)) continue;
        seen.add(el);
        if (isOurElement(el)) continue;
        if (el === document.body || el === document.documentElement) continue;
        candidates.push(el);
      }
    } catch(e) {}
  });
  if (level === 'aggressive') {
    try {
      var scan = document.querySelectorAll('div, section, aside, iframe, img');
      for (var i = 0; i < scan.length; i++) {
        var el = scan[i];
        if (seen.has(el)) continue;
        seen.add(el);
        if (isOurElement(el)) continue;
        if (el === document.body || el === document.documentElement) continue;
        var name = (String(el.className || '') + ' ' + String(el.id || '')).toLowerCase();
        if (AUTO_AGGRESSIVE_WORD_RE.test(name)) { candidates.push(el); continue; }
        if (el.tagName === 'IFRAME') {
          var w = el.offsetWidth, h = el.offsetHeight;
          if (w > 0 && h > 0) {
            for (var j = 0; j < AUTO_STD_SIZES.length; j++) {
              if (Math.abs(w - AUTO_STD_SIZES[j][0]) < 8 && Math.abs(h - AUTO_STD_SIZES[j][1]) < 8) { candidates.push(el); break; }
            }
          }
        }
      }
    } catch(e) {}
    try {
      var gs = document.querySelectorAll('a, img, div');
      for (var i = 0; i < gs.length; i++) {
        var el = gs[i];
        if (seen.has(el)) continue;
        if (isOurElement(el)) continue;
        if (el === document.body || el === document.documentElement) continue;
        var verdict = checkGamblingAd(el);
        if (verdict === 'strong') { seen.add(el); candidates.push(el); }
      }
    } catch(e) {}
  }
  var valid = [];
  for (var i = 0; i < candidates.length; i++) {
    var el = candidates[i];
    var r = el.getBoundingClientRect();
    if (r.width < 20 || r.height < 20) continue;
    if (r.width > window.innerWidth * 0.98 && r.height > window.innerHeight * 0.8) continue;
    valid.push(el);
  }
  if (valid.length === 0) return 0;
  var existing = Storage.list();
  var existingSelectors = {};
  existing.forEach(function(r) { if (r.type === 'hide' && r.selector) existingSelectors[r.selector] = true; });
  var added = 0;
  var newRules = [];
  valid.forEach(function(el) {
    var selector = generateSelector(el);
    if (!selector) return;
    if (existingSelectors[selector]) return;
    var mc = 0;
    try { mc = document.querySelectorAll(selector).length; } catch(e) { return; }
    if (mc < 1 || mc > 50) return;
    existingSelectors[selector] = true;
    newRules.push({ id: genId(), type: 'hide', selector: selector, enabled: true, auto: true, createdAt: Date.now() });
    added++;
  });
  if (newRules.length > 0) {
    Storage.addMany(newRules);
    HideManager.apply();
    showToast('🤖 自动识别：新增 ' + added + ' 条规则');
  }
  return added;
}

var StyleManager = {
  styleEl: null,
  ensure: function() {
    if (this.styleEl && this.styleEl.isConnected) return;
    var s = document.createElement('style');
    s.id = '__ab_style';
    s.textContent = '[data-ab-hide-rule][data-ab-hide-mode="keep"]{visibility:hidden !important;opacity:0 !important;pointer-events:none !important;}'
      + '[data-ab-hide-rule][data-ab-hide-mode="keep"] *{visibility:hidden !important;pointer-events:none !important;}'
      + '[data-ab-hide-rule][data-ab-hide-mode="clean"]{display:none !important;}'
      + '[data-ab-hide-rule]:not([data-ab-hide-mode]){visibility:hidden !important;opacity:0 !important;pointer-events:none !important;}';
    var target = document.head || document.documentElement;
    if (target) target.appendChild(s);
    this.styleEl = s;
  }
};

function computeFingerprint(el) {
  if (!el || el.nodeType !== 1) return null;
  if (el === document.body || el === document.documentElement) return null;
  var tag = el.tagName.toLowerCase();
  var path = [];
  var node = el, safety = 0;
  while (node && node !== document.body && node.parentElement && safety < 30) {
    var parent = node.parentElement;
    var idx = -1;
    for (var i = 0; i < parent.children.length; i++) { if (parent.children[i] === node) { idx = i; break; } }
    if (idx < 0) return null;
    path.unshift(idx);
    node = parent;
    safety++;
  }
  if (safety >= 30) return null;
  var rect = el.getBoundingClientRect();
  var w = Math.round(rect.width), h = Math.round(rect.height);
  if (w <= 0 || h <= 0) return null;
  var parentEl = el.parentElement;
  var siblings = parentEl ? parentEl.children.length : 0;
  var ratio = h > 0 ? Math.round((w / h) * 100) / 100 : 0;
  return { tag: tag, depth: path.length, path: path, siblings: siblings, w: w, h: h, ratio: ratio };
}
function fingerprintsMatchStrict(fp1, fp2) {
  if (!fp1 || !fp2) return false;
  if (fp1.tag !== fp2.tag) return false;
  if (fp1.depth !== fp2.depth) return false;
  if (fp1.siblings !== fp2.siblings) return false;
  if (fp1.w !== fp2.w) return false;
  if (fp1.h !== fp2.h) return false;
  if (!fp1.path || !fp2.path) return false;
  if (fp1.path.length !== fp2.path.length) return false;
  for (var i = 0; i < fp1.path.length; i++) { if (fp1.path[i] !== fp2.path[i]) return false; }
  return true;
}
function fingerprintsMatchLoose(fp1, fp2) {
  if (!fp1 || !fp2) return false;
  if (fp1.tag !== fp2.tag) return false;
  var wRatio = Math.abs(fp1.w - fp2.w) / Math.max(fp1.w, fp2.w, 1);
  var hRatio = Math.abs(fp1.h - fp2.h) / Math.max(fp1.h, fp2.h, 1);
  if (wRatio > 0.25 || hRatio > 0.25) return false;
  if (Math.abs(fp1.depth - fp2.depth) > 2) return false;
  return true;
}
function findElementByFingerprint(fp) {
  if (!fp || !fp.tag) return null;
  var candidates;
  try { candidates = document.querySelectorAll(fp.tag); } catch (e) { return null; }
  for (var i = 0; i < candidates.length; i++) {
    var el = candidates[i];
    if (el === document.body || el === document.documentElement) continue;
    if (isOurElement(el)) continue;
    var cur = computeFingerprint(el);
    if (cur && fingerprintsMatchStrict(cur, fp)) return el;
  }
  return null;
}
function computeStructure(el, maxDepth) {
  if (!el || el.nodeType !== 1) return null;
  if (maxDepth === undefined) maxDepth = 2;
  var rect = el.getBoundingClientRect();
  var w = rect.width, h = rect.height;
  if (w <= 0 || h <= 0) return null;
  var ratio = h > 0 ? Math.round((w / h) * 100) / 100 : 0;
  var node = { tag: el.tagName.toLowerCase(), ratio: ratio, childCount: el.children.length, children: [] };
  if (maxDepth > 0) {
    var kids = el.children;
    var limit = Math.min(kids.length, 20);
    for (var i = 0; i < limit; i++) {
      var child = computeStructure(kids[i], maxDepth - 1);
      if (child) node.children.push(child);
    }
  }
  return node;
}
function compareStructure(s1, s2) {
  if (!s1 || !s2) return 0;
  if (s1.tag !== s2.tag) return 0;
  var score = 0, weight = 0;
  weight += 1;
  if (s1.childCount === s2.childCount) score += 1;
  else if (Math.abs(s1.childCount - s2.childCount) <= 1) score += 0.5;
  weight += 1;
  if (s1.ratio > 0 && s2.ratio > 0) {
    var r1 = s1.ratio, r2 = s2.ratio;
    var diff = Math.abs(r1 - r2) / Math.max(r1, r2);
    if (diff < 0.2) score += 1;
    else if (diff < 0.5) score += 0.5;
  }
  if (s1.children.length > 0 && s2.children.length > 0) {
    var minLen = Math.min(s1.children.length, s2.children.length);
    var maxLen = Math.max(s1.children.length, s2.children.length);
    var childScore = 0;
    for (var i = 0; i < minLen; i++) childScore += compareStructure(s1.children[i], s2.children[i]);
    weight += 2;
    score += (childScore / maxLen) * 2;
  }
  if (weight === 0) return 0;
  return score / weight;
}

var Storage = {
  _loadAll: function() { try { return JSON.parse(GM_getValue(STORAGE_KEY, '{}')); } catch(e) { return {}; } },
  _saveAll: function(a) { GM_setValue(STORAGE_KEY, JSON.stringify(a)); },
  list: function() {
    var all = this._loadAll();
    var arr = all[HOST] || [];
    return arr.map(function(m) {
      var it = Object.assign({}, m);
      if (!it.type) it.type = 'mask';
      if (it.type === 'mask' && !it.mode) it.mode = 'doc';
      return it;
    });
  },
  save: function(list) {
    var all = this._loadAll();
    if (list.length) all[HOST] = list; else delete all[HOST];
    this._saveAll(all);
  },
  add: function(item) { var l = this.list(); l.push(item); this.save(l); },
  addMany: function(items) { var l = this.list(); items.forEach(function(it) { l.push(it); }); this.save(l); },
  remove: function(id) { this.save(this.list().filter(function(m) { return m.id !== id; })); },
  removeGroup: function(groupId) { this.save(this.list().filter(function(m) { return m.groupId !== groupId; })); },
  removeAllAuto: function() { this.save(this.list().filter(function(m) { return !m.auto; })); },
  clear: function() { this.save([]); },
  allHosts: function() { var all = this._loadAll(); return Object.keys(all).filter(function(k) { return Array.isArray(all[k]) && all[k].length > 0; }); },
  getHostRules: function(host) { var all = this._loadAll(); return all[host] || []; },
  getRemarkRaw: function(host) { var map = {}; try { map = JSON.parse(GM_getValue(REMARK_KEY, '{}')); } catch(e) {} return map[host] || null; },
  getRemark: function(host) { var data = this.getRemarkRaw(host); if (!data) return ''; if (typeof data === 'string') return data; return data.text || ''; },
  setRemark: function(host, remark) {
    var map = {};
    try { map = JSON.parse(GM_getValue(REMARK_KEY, '{}')); } catch(e) {}
    remark = (remark || '').trim();
    if (remark) map[host] = { text: remark, updatedAt: Date.now() };
    else delete map[host];
    GM_setValue(REMARK_KEY, JSON.stringify(map));
  },
  getAllRemarks: function() { try { return JSON.parse(GM_getValue(REMARK_KEY, '{}')); } catch(e) { return {}; } }
};

var Renderer = {
  docContainer: null, fixedContainer: null, els: {},
  ensure: function() {
    var p = document.body || document.documentElement;
    if (!p) return false;
    if (!this.docContainer || !this.docContainer.isConnected) {
      var c = document.createElement('div');
      c.id = '__ab_mask_doc_container';
      c.style.cssText = 'position:absolute;top:0;left:0;width:0;height:0;pointer-events:none;z-index:' + MAX_Z + ';';
      p.appendChild(c); this.docContainer = c;
    }
    if (!this.fixedContainer || !this.fixedContainer.isConnected) {
      var c2 = document.createElement('div');
      c2.id = '__ab_mask_fixed_container';
      c2.style.cssText = 'position:fixed;top:0;left:0;width:0;height:0;pointer-events:none;z-index:' + MAX_Z + ';';
      p.appendChild(c2); this.fixedContainer = c2;
    }
    return true;
  },
  render: function() {
    if (!this.ensure()) return;
    var self = this;
    var list = Storage.list().filter(function(m) { return m.type === 'mask'; });
    var ds = getDocSize(), vw = window.innerWidth, vh = window.innerHeight;
    var ids = {};
    list.forEach(function(m) { ids[m.id] = true; });
    for (var id in this.els) { if (!ids[id]) { this.els[id].remove(); delete this.els[id]; } }
    list.forEach(function(m) {
      var isFixed = m.mode === 'fixed';
      var el = self.els[m.id];
      if (el && el.dataset.mode !== m.mode) { el.remove(); delete self.els[m.id]; el = null; }
      if (!el) {
        el = self._create(m);
        el.dataset.mode = m.mode;
        (isFixed ? self.fixedContainer : self.docContainer).appendChild(el);
        self.els[m.id] = el;
      }
      var W = isFixed ? vw : ds.w, H = isFixed ? vh : ds.h;
      el.style.left = (m.x * W) + 'px';
      el.style.top = (m.y * H) + 'px';
      el.style.width = (m.w * W) + 'px';
      el.style.height = (m.h * H) + 'px';
      el.style.display = m.enabled ? 'block' : 'none';
    });
  },
  _create: function(m) {
    var isFixed = m.mode === 'fixed';
    var el = document.createElement('div');
    el.dataset.maskId = m.id;
    el.dataset.mode = m.mode;
    el.style.cssText = 'position:' + (isFixed ? 'fixed' : 'absolute') + ';background:#ffffff;box-sizing:border-box;pointer-events:auto;z-index:' + MAX_Z + ';touch-action:pan-y;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;';
    el.addEventListener('click', function(e) { e.stopPropagation(); });
    return el;
  }
};

var HideManager = {
  _scheduled: false, _timer: null,
  apply: function() {
    StyleManager.ensure();
    var rules = Storage.list().filter(function(r) { return r.enabled; });
    var hideRules = rules.filter(function(r) { return r.type === 'hide'; });
    hideRules.forEach(function(rule) {
      try {
        var els = document.querySelectorAll(rule.selector);
        for (var i = 0; i < els.length; i++) {
          var el = els[i];
          if (!el || el.nodeType !== 1) continue;
          if (el === document.body || el === document.documentElement) continue;
          if (isOurElement(el)) continue;
          el.dataset.abHideRule = rule.id;
          el.dataset.abHideMode = resolveModeForElement(el);
        }
      } catch(e) {}
    });
    var posRules = rules.filter(function(r) { return r.type === 'pos' && r.tag; });
    if (posRules.length > 0) applyPositionRules(posRules);
  },
  schedule: function() {
    if (this._scheduled) return;
    this._scheduled = true;
    var self = this;
    var run = function() { self._scheduled = false; self.apply(); };
    if (typeof requestAnimationFrame === 'function') requestAnimationFrame(run);
    else setTimeout(run, 16);
  },
  startPeriodic: function() {
    if (this._timer) return;
    var self = this;
    this._timer = setInterval(function() { try { self.apply(); } catch(e) {} }, 5000);
  }
};
function applyPositionRules(posRules) {
  var tagSet = {};
  posRules.forEach(function(r) { tagSet[r.tag] = true; });
  var candidates = [];
  for (var t in tagSet) {
    try { var els = document.querySelectorAll(t); for (var i = 0; i < els.length; i++) candidates.push(els[i]); } catch (e) {}
  }
  for (var i = 0; i < candidates.length; i++) {
    var el = candidates[i];
    if (el === document.body || el === document.documentElement) continue;
    if (isOurElement(el)) continue;
    if (el.dataset.abHideRule) continue;
    var fp = computeFingerprint(el);
    if (!fp) continue;
    for (var j = 0; j < posRules.length; j++) {
      if (fingerprintsMatchStrict(fp, posRules[j]) || fingerprintsMatchLoose(fp, posRules[j])) {
        el.dataset.abHideRule = posRules[j].id;
        el.dataset.abHideMode = resolveModeForElement(el);
        break;
      }
    }
  }
}

var ClickSelector = {
  overlay: null, marks: null, focusEl: null, focusHistory: [], statusBar: null, topTip: null,
  active: false, updateTimer: null, _touchStartPos: null, _onScroll: null, _onResize: null,
  _smartRoot: null, _clipRect: null, _clipBorder: null, _cancelMode: false,
  _colorPool: ['#FF3B30','#007AFF','#34C759','#FF9500','#AF52DE','#5856D6','#FF2D55','#5AC8FA'],
  _colorIndex: 0, _parentColors: null,
  start: function() {
    if (this.active) return;
    this.active = true;
    this.marks = new Map();
    this.focusEl = null;
    this.focusHistory = [];
    this._smartRoot = null;
    this._clipRect = null;
    this._clipBorder = null;
    this._cancelMode = false;
    this._colorIndex = 0;
    this._parentColors = new Map();
    this._build();
  },
  _makeDraggable: function(el, handleEl, excludeEls) {
    var dragging = false, startX = 0, startY = 0, startRect = null;
    var onStart = function(e) {
      if (excludeEls) {
        for (var i = 0; i < excludeEls.length; i++) {
          var ex = excludeEls[i];
          if (!ex) continue;
          if (ex === e.target) return;
          if (ex.contains && ex.contains(e.target)) return;
        }
      }
      if (handleEl && e.target !== handleEl && !(handleEl.contains && handleEl.contains(e.target))) return;
      var touch = e.touches ? e.touches[0] : e;
      startX = touch.clientX; startY = touch.clientY;
      startRect = el.getBoundingClientRect();
      el.style.left = startRect.left + 'px';
      el.style.top = startRect.top + 'px';
      el.style.right = 'auto'; el.style.bottom = 'auto'; el.style.transform = 'none';
      dragging = true;
      try { e.preventDefault(); e.stopPropagation(); } catch(ex2) {}
    };
    var onMove = function(e) {
      if (!dragging) return;
      var touch = e.touches ? e.touches[0] : e;
      var dx = touch.clientX - startX, dy = touch.clientY - startY;
      var newX = Math.max(0, Math.min(window.innerWidth - el.offsetWidth, startRect.left + dx));
      var newY = Math.max(0, Math.min(window.innerHeight - el.offsetHeight, startRect.top + dy));
      el.style.left = newX + 'px'; el.style.top = newY + 'px';
      try { e.preventDefault(); } catch(ex2) {}
    };
    var onEnd = function() { dragging = false; };
    el.addEventListener('touchstart', onStart, { passive: false });
    el.addEventListener('touchmove', onMove, { passive: false });
    el.addEventListener('touchend', onEnd);
    el.addEventListener('touchcancel', onEnd);
    el.addEventListener('mousedown', onStart);
    document.addEventListener('mousemove', onMove);
    document.addEventListener('mouseup', onEnd);
  },
  _build: function() {
    var self = this;
    var topTip = document.createElement('div');
    topTip.id = '__ab_top_tip';
    topTip.style.cssText = 'position:fixed;top:20px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,0.88);color:#fff;padding:8px 10px 8px 18px;border-radius:20px;font-size:13px;font-family:system-ui;z-index:' + MAX_Z + ';white-space:nowrap;box-shadow:0 4px 16px rgba(0,0,0,0.3);display:flex;align-items:center;gap:10px;cursor:move;user-select:none;';
    var tipText = document.createElement('span');
    tipText.textContent = '👆 点击广告元素（可多选）';
    tipText.style.pointerEvents = 'none';
    topTip.appendChild(tipText);
    var closeX = document.createElement('button');
    closeX.textContent = '✕';
    closeX.style.cssText = 'background:rgba(255,255,255,0.2);border:none;color:#fff;width:22px;height:22px;border-radius:50%;font-size:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;';
    closeX.onclick = function() { self._cancel(); };
    topTip.appendChild(closeX);
    document.body.appendChild(topTip);
    this.topTip = topTip;

    var ov = document.createElement('div');
    ov.id = '__ab_click_overlay';
    ov.style.cssText = 'position:fixed;inset:0;background:transparent;z-index:' + (parseInt(MAX_Z) - 2) + ';touch-action:pan-y;cursor:crosshair;';
    document.body.appendChild(ov);
    this.overlay = ov;

    var bar = document.createElement('div');
    bar.id = '__ab_status_bar';
    bar.style.cssText = 'position:fixed;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:6px;z-index:' + MAX_Z + ';align-items:center;background:rgba(0,0,0,0.88);padding:8px;border-radius:32px;box-shadow:0 4px 20px rgba(0,0,0,0.4);max-width:96vw;flex-wrap:nowrap;';
    this.statusBar = bar;

    var hint = document.createElement('div');
    hint.textContent = '已选 0';
    hint.style.cssText = 'color:#fff;font-size:12px;font-family:system-ui;padding:6px 12px;white-space:nowrap;font-weight:600;cursor:move;user-select:none;-webkit-user-select:none;touch-action:none;';
    bar.appendChild(hint);
    this.hintEl = hint;

    var upBtn = document.createElement('button');
    upBtn.textContent = '⬆️父';
    upBtn.style.cssText = 'padding:9px 10px;background:#FF9500;color:#fff;border:none;border-radius:18px;font-size:12px;font-weight:600;cursor:pointer;opacity:0.35;';
    upBtn.disabled = true;
    upBtn.onclick = function(e) { e.stopPropagation(); self._expand(); };
    bar.appendChild(upBtn);
    this.upBtn = upBtn;

    var downBtn = document.createElement('button');
    downBtn.textContent = '⬇️子';
    downBtn.style.cssText = 'padding:9px 10px;background:#FF9500;color:#fff;border:none;border-radius:18px;font-size:12px;font-weight:600;cursor:pointer;opacity:0.35;';
    downBtn.disabled = true;
    downBtn.onclick = function(e) { e.stopPropagation(); self._shrink(); };
    bar.appendChild(downBtn);
    this.downBtn = downBtn;

    var actionCol = document.createElement('div');
    actionCol.style.cssText = 'display:flex;flex-direction:column;gap:4px;';
    var layerBtn = document.createElement('button');
    layerBtn.textContent = '✨ 选层';
    layerBtn.style.cssText = 'padding:4px 8px;background:#5856D6;color:#fff;border:none;border-radius:12px;font-size:10px;font-weight:600;cursor:pointer;white-space:nowrap;';
    layerBtn.onclick = function(e) { e.stopPropagation(); self._smartSelectLayer(); };
    actionCol.appendChild(layerBtn);
    var clipBtn = document.createElement('button');
    clipBtn.textContent = '✂️ 框选';
    clipBtn.style.cssText = 'padding:4px 8px;background:#007AFF;color:#fff;border:none;border-radius:12px;font-size:10px;font-weight:600;cursor:pointer;white-space:nowrap;';
    clipBtn.onclick = function(e) { e.stopPropagation(); self._startClip(); };
    actionCol.appendChild(clipBtn);
    bar.appendChild(actionCol);

    var rightCol = document.createElement('div');
    rightCol.style.cssText = 'display:flex;flex-direction:column;gap:4px;';
    var cancelModeBtn = document.createElement('button');
    cancelModeBtn.textContent = '✖️ 取消选';
    cancelModeBtn.style.cssText = 'padding:5px 10px;background:#8E8E93;color:#fff;border:none;border-radius:12px;font-size:10px;font-weight:600;cursor:pointer;white-space:nowrap;';
    cancelModeBtn.onclick = function(e) {
      e.stopPropagation();
      self._cancelMode = !self._cancelMode;
      self._updateUI();
      if (self._cancelMode) showToast('✖️ 取消选模式：点击已选中的容器即可取消');
    };
    rightCol.appendChild(cancelModeBtn);
    this.cancelModeBtn = cancelModeBtn;

    var okBtn = document.createElement('button');
    okBtn.textContent = '🚫 隐藏';
    okBtn.style.cssText = 'padding:6px 10px;background:#FF3B30;color:#fff;border:none;border-radius:12px;font-size:11px;font-weight:600;cursor:pointer;opacity:0.35;white-space:nowrap;';
    okBtn.disabled = true;
    okBtn.onclick = function(e) { e.stopPropagation(); self._confirm(); };
    rightCol.appendChild(okBtn);
    this.okBtn = okBtn;
    bar.appendChild(rightCol);
    document.body.appendChild(bar);

    this._makeDraggable(topTip, null, [closeX]);
    this._makeDraggable(bar, hint, [upBtn, downBtn, layerBtn, clipBtn, cancelModeBtn, okBtn]);

    var onTap = function(e) {
      e.preventDefault();
      e.stopPropagation();
      var cx = e.clientX !== undefined ? e.clientX : (e.changedTouches && e.changedTouches[0] ? e.changedTouches[0].clientX : 0);
      var cy = e.clientY !== undefined ? e.clientY : (e.changedTouches && e.changedTouches[0] ? e.changedTouches[0].clientY : 0);
      self._pickAt(cx, cy);
    };
    ov.addEventListener('touchstart', function(e) {
      if (e.touches && e.touches[0]) self._touchStartPos = { x: e.touches[0].clientX, y: e.touches[0].clientY };
    }, { passive: true });
    ov.addEventListener('touchend', function(e) {
      if (e.changedTouches && e.changedTouches[0]) {
        if (self._touchStartPos) {
          var dx = e.changedTouches[0].clientX - self._touchStartPos.x;
          var dy = e.changedTouches[0].clientY - self._touchStartPos.y;
          if (Math.sqrt(dx*dx + dy*dy) > 10) { self._touchStartPos = null; return; }
        }
      }
      onTap(e);
      self._touchStartPos = null;
    }, { passive: false });
    ov.addEventListener('click', onTap);

    this._onScroll = function() { self._updateAllMarks(); };
    this._onResize = function() { self._updateAllMarks(); };
    window.addEventListener('scroll', this._onScroll, { passive: true });
    window.addEventListener('resize', this._onResize);
    this.updateTimer = setInterval(function() { self._updateAllMarks(); }, 200);
  },
  _startClip: function() {
    var self = this;
    if (self._clipBorder) { self._clipBorder.remove(); self._clipBorder = null; }
    self._clipRect = null;
    self.overlay.style.display = 'none';
    self.statusBar.style.display = 'none';
    self.topTip.style.display = 'none';
    MaskSelector.start(function(rect) {
      self.overlay.style.display = '';
      self.statusBar.style.display = '';
      self.topTip.style.display = '';
      if (rect.width < 20 || rect.height < 20) { showToast('区域太小，请重新点击框选'); return; }
      var scroll = getScroll();
      self._clipRect = { left: rect.left + scroll.x, top: rect.top + scroll.y, right: rect.right + scroll.x, bottom: rect.bottom + scroll.y };
      self._clipBorder = document.createElement('div');
      self._clipBorder.id = '__ab_clip_border';
      self._clipBorder.style.cssText = 'position:absolute;border:2px solid #FF3B30;background:rgba(255,59,48,0.05);z-index:' + (parseInt(MAX_Z)-1) + ';pointer-events:none;left:' + self._clipRect.left + 'px;top:' + self._clipRect.top + 'px;width:' + rect.width + 'px;height:' + rect.height + 'px;';
      document.body.appendChild(self._clipBorder);
      self._autoAnchorInClip();
      showToast('✅ 框选成功，可直接点"✨ 选层"批量选中框内同类元素');
      self._updateUI();
    });
  },
  _autoAnchorInClip: function() {
    if (!this._clipRect) return;
    var scroll = getScroll();
    var c = this._clipRect;
    var screenLeft = c.left - scroll.x, screenTop = c.top - scroll.y;
    var screenRight = c.right - scroll.x, screenBottom = c.bottom - scroll.y;
    var points = [
      [(screenLeft + screenRight) / 2, (screenTop + screenBottom) / 2],
      [screenLeft + 15, screenTop + 15], [screenRight - 15, screenTop + 15],
      [screenLeft + 15, screenBottom - 15], [screenRight - 15, screenBottom - 15],
      [(screenLeft + screenRight) / 2, screenTop + 15],
      [(screenLeft + screenRight) / 2, screenBottom - 15],
      [screenLeft + 15, (screenTop + screenBottom) / 2],
      [screenRight - 15, (screenTop + screenBottom) / 2]
    ];
    var ov = this.overlay, bar = this.statusBar, tip = this.topTip;
    if (ov) ov.style.pointerEvents = 'none';
    if (bar) bar.style.pointerEvents = 'none';
    if (tip) tip.style.pointerEvents = 'none';
    var el = null;
    for (var i = 0; i < points.length; i++) {
      var e = null;
      try { e = document.elementFromPoint(points[i][0], points[i][1]); } catch(ex) {}
      if (e && !isOurElement(e) && e !== document.documentElement && e !== document.body) { el = e; break; }
    }
    if (ov) ov.style.pointerEvents = '';
    if (bar) bar.style.pointerEvents = '';
    if (tip) tip.style.pointerEvents = '';
    if (el) {
      this.focusEl = el;
      this.focusHistory = [];
      this._smartRoot = null;
      if (!this.marks.has(el)) this._addMark(el);
    }
  },
  _pickAt: function(x, y) {
    if (this._clipRect) {
      var scroll = getScroll();
      var docX = x + scroll.x, docY = y + scroll.y;
      var c = this._clipRect;
      if (docX < c.left || docX > c.right || docY < c.top || docY > c.bottom) { showToast('⚠️ 请在框选区域内点击'); return; }
    }
    var ov = this.overlay, bar = this.statusBar, tip = this.topTip;
    ov.style.pointerEvents = 'none';
    if (bar) bar.style.pointerEvents = 'none';
    if (tip) tip.style.pointerEvents = 'none';
    var el = null;
    try { el = document.elementFromPoint(x, y); } catch(e) {}
    ov.style.pointerEvents = '';
    if (bar) bar.style.pointerEvents = '';
    if (tip) tip.style.pointerEvents = '';
    if (!el) return;
    if (isOurElement(el)) return;
    if (el === document.documentElement) return;
    if (this._cancelMode) {
      var node = el, found = null;
      while (node && node !== document.body && node !== document.documentElement) {
        if (this.marks.has(node)) { found = node; break; }
        node = node.parentElement;
      }
      if (found) {
        this._removeMark(found);
        this._updateUI();
        showToast('✖️ 已取消一个选中');
        this._cancelMode = false;
        this._updateUI();
      } else showToast('⚠️ 这里没有已选中的容器');
      return;
    }
    this._smartRoot = null;
    if (this.marks.has(el)) {
      this._removeMark(el);
      this.focusEl = el;
      this.focusHistory = [];
      this._updateUI();
      return;
    }
    this._addMark(el);
    this.focusEl = el;
    this.focusHistory = [];
    this._updateUI();
  },
  _smartSelectLayer: function() {
    if (!this.focusEl && this._clipRect) this._autoAnchorInClip();
    if (!this.focusEl) { showToast('请先点选一个目标元素，或先框选一个区域'); return; }
    if (!this._smartRoot) this._smartRoot = this.focusEl;
    else {
      var parent = this._smartRoot.parentElement;
      if (parent && parent !== document.body && parent !== document.documentElement) this._smartRoot = parent;
      else { showToast('已到达最顶层，无法继续向上'); return; }
    }
    var tag = this._smartRoot.tagName.toLowerCase();
    var targetDepth = getDepth(this._smartRoot);
    var count = 0;
    var all = document.querySelectorAll(tag);
    var scroll = getScroll();
    var c = this._clipRect;
    for (var i = 0; i < all.length; i++) {
      var el = all[i];
      if (el === document.body || el === document.documentElement) continue;
      if (isOurElement(el)) continue;
      if (this.marks.has(el)) continue;
      if (getDepth(el) === targetDepth) {
        var r = el.getBoundingClientRect();
        if (r.width > 0 && r.height > 0) {
          if (c) {
            var elLeft = r.left + scroll.x, elTop = r.top + scroll.y;
            var elRight = elLeft + r.width, elBottom = elTop + r.height;
            if (elLeft < c.left || elRight > c.right || elTop < c.top || elBottom > c.bottom) continue;
          }
          this._addMark(el);
          count++;
        }
      }
    }
    this.focusEl = this._smartRoot;
    this._updateUI();
    showToast('已选中 ' + tag + ' 层 (第' + targetDepth + '层, 框内新增 ' + count + ' 个)');
  },
  _addMark: function(el) {
    if (this.marks.has(el)) return;
    var parent = el.parentElement || document.body;
    var color = this._parentColors.get(parent);
    if (!color) {
      color = this._colorPool[this._colorIndex % this._colorPool.length];
      this._colorIndex++;
      this._parentColors.set(parent, color);
    }
    el.dataset.abColor = color;
    var mk = document.createElement('div');
    mk.id = '__ab_mark';
    mk.style.cssText = 'position:fixed;pointer-events:none;display:none;border:2px dashed ' + color + ';background:' + color + '1A;box-sizing:border-box;z-index:' + (parseInt(MAX_Z) - 3) + ';';
    document.body.appendChild(mk);
    this.marks.set(el, mk);
    this._positionMark(el, mk);
  },
  _removeMark: function(el) {
    var mk = this.marks.get(el);
    if (mk) { mk.remove(); this.marks.delete(el); }
  },
  _positionMark: function(el, mk) {
    if (!el.isConnected) { mk.style.display = 'none'; return; }
    var r = el.getBoundingClientRect();
    if (r.width === 0 || r.height === 0) { mk.style.display = 'none'; return; }
    mk.style.display = 'block';
    mk.style.left = r.left + 'px'; mk.style.top = r.top + 'px';
    mk.style.width = r.width + 'px'; mk.style.height = r.height + 'px';
  },
  _updateAllMarks: function() {
    var self = this;
    var toRemove = [];
    this.marks.forEach(function(mk, el) {
      if (!el.isConnected) { toRemove.push(el); return; }
      self._positionMark(el, mk);
    });
    for (var i = 0; i < toRemove.length; i++) this._removeMark(toRemove[i]);
    if (toRemove.length > 0) this._updateUI();
  },
  _updateUI: function() {
    var n = this.marks.size;
    this.hintEl.textContent = '已选 ' + n;
    if (n > 0) {
      this.okBtn.disabled = false;
      this.okBtn.style.opacity = '1';
      this.okBtn.textContent = '🚫 隐藏 ' + n;
    } else {
      this.okBtn.disabled = true;
      this.okBtn.style.opacity = '0.35';
      this.okBtn.textContent = '🚫 隐藏';
    }
    if (this.cancelModeBtn) {
      if (this._cancelMode) { this.cancelModeBtn.style.background = '#FF9500'; this.cancelModeBtn.textContent = '✖️ 取消中'; }
      else { this.cancelModeBtn.style.background = '#8E8E93'; this.cancelModeBtn.textContent = '✖️ 取消选'; }
    }
    var hasFocus = this.focusEl && this.focusEl.isConnected;
    this.upBtn.disabled = !hasFocus;
    this.upBtn.style.opacity = hasFocus ? '1' : '0.35';
    var canShrink = this.focusHistory.length > 0;
    this.downBtn.disabled = !canShrink;
    this.downBtn.style.opacity = canShrink ? '1' : '0.35';
  },
  _expand: function() {
    if (!this.focusEl || !this.focusEl.isConnected) return;
    this._smartRoot = null;
    var parent = this.focusEl.parentElement;
    if (!parent || parent === document.documentElement || isOurElement(parent)) return;
    if (this.marks.has(parent)) { this.hintEl.textContent = '父已选'; return; }
    var wasInMarks = this.marks.has(this.focusEl);
    if (wasInMarks) this._removeMark(this.focusEl);
    this._addMark(parent);
    this.focusHistory.push({ el: this.focusEl, wasInMarks: wasInMarks });
    this.focusEl = parent;
    this._updateUI();
  },
  _shrink: function() {
    if (this.focusHistory.length === 0) return;
    this._smartRoot = null;
    var last = this.focusHistory.pop();
    this._removeMark(this.focusEl);
    if (last.wasInMarks) this._addMark(last.el);
    this.focusEl = last.el;
    this._updateUI();
  },
  _collectGroupRules: function(rootEl) {
    var groupId = genGroupId();
    var rules = [];
    var count = 0;
    var walk = function(el, isRoot) {
      if (count >= MAX_GROUP_CHILDREN) return;
      if (!el || el.nodeType !== 1) return;
      var tag = el.tagName.toLowerCase();
      if (tag === 'script' || tag === 'style' || tag === 'link' || tag === 'meta' || tag === 'br' || tag === 'hr' || tag === 'noscript') return;
      var r = el.getBoundingClientRect();
      if (r.width <= 0 || r.height <= 0) return;
      var fp = computeFingerprint(el);
      if (fp) {
        rules.push({ id: genPosId(), type: 'pos', groupId: groupId, isRoot: !!isRoot, tag: fp.tag, depth: fp.depth, path: fp.path, siblings: fp.siblings, w: fp.w, h: fp.h, ratio: fp.ratio, enabled: true, createdAt: Date.now() });
        count++;
      }
      var kids = el.children;
      for (var i = 0; i < kids.length; i++) { if (count >= MAX_GROUP_CHILDREN) break; walk(kids[i], false); }
    };
    walk(rootEl, true);
    var struct = computeStructure(rootEl, 2);
    return { groupId: groupId, rules: rules, struct: struct, rootTag: rootEl.tagName.toLowerCase() };
  },
  _confirm: function() {
    if (this.marks.size === 0) return;
    var addedRules = 0, addedSelector = 0;
    var allNewRules = [];
    this.marks.forEach(function(mk, el) {
      if (!el || !el.isConnected) return;
      var selector = generateSelector(el);
      if (selector) {
        var mc = 0;
        try { mc = document.querySelectorAll(selector).length; } catch(e) {}
        if (mc >= 1 && mc <= 100) {
          allNewRules.push({ id: genId(), type: 'hide', selector: selector, enabled: true, createdAt: Date.now() });
          addedSelector++;
        }
      }
      var group = this._collectGroupRules(el);
      if (group.rules.length > 0) {
        group.rules[0].structFP = group.struct;
        group.rules[0].rootTag = group.rootTag;
        group.rules.forEach(function(r) { allNewRules.push(r); });
        addedRules += group.rules.length;
      }
    }, this);
    if (allNewRules.length > 0) Storage.addMany(allNewRules);
    HideManager.apply();
    this._close();
    if (addedRules > 0 || addedSelector > 0) {
      var msg = '已记录：';
      if (addedSelector > 0) msg += addedSelector + ' 条选择器 · ';
      if (addedRules > 0) msg += addedRules + ' 条位置';
      showToast(msg);
    }
  },
  _cancel: function() { this._close(); },
  _close: function() {
    if (this.updateTimer) { clearInterval(this.updateTimer); this.updateTimer = null; }
    if (this._onScroll) { window.removeEventListener('scroll', this._onScroll); this._onScroll = null; }
    if (this._onResize) { window.removeEventListener('resize', this._onResize); this._onResize = null; }
    if (this.overlay) { this.overlay.remove(); this.overlay = null; }
    if (this.statusBar) { this.statusBar.remove(); this.statusBar = null; }
    if (this.topTip) { this.topTip.remove(); this.topTip = null; }
    if (this._clipBorder) { this._clipBorder.remove(); this._clipBorder = null; }
    if (this.marks) { this.marks.forEach(function(mk) { mk.remove(); }); this.marks.clear(); }
    this.focusEl = null;
    this.focusHistory = [];
    this._smartRoot = null;
    this._clipRect = null;
    this._cancelMode = false;
    this._parentColors.clear();
    this._colorIndex = 0;
    this.active = false;
  }
};

var MaskSelector = {
  overlay: null, box: null, active: false, drag: null, handles: {}, mode: 'doc', _onConfirm: null,
  start: function(onConfirm) {
    if (this.active) return;
    this.active = true;
    this._onConfirm = onConfirm || null;
    this._build();
  },
  _build: function() {
    var self = this;
    var ov = document.createElement('div');
    ov.id = '__ab_mask_overlay';
    ov.style.cssText = 'position:fixed;inset:0;background:rgba(0,0,0,0.55);z-index:' + MAX_Z + ';touch-action:none;user-select:none;';
    this.overlay = ov;
    var w = Math.min(300, window.innerWidth * 0.8);
    var h = Math.min(180, window.innerHeight * 0.35);
    var x = (window.innerWidth - w) / 2, y = (window.innerHeight - h) / 2;
    var box = document.createElement('div');
    box.id = '__ab_mask_box';
    box.style.cssText = 'position:absolute;border:2px dashed #007AFF;background:rgba(0,122,255,0.2);box-sizing:border-box;touch-action:none;left:' + x + 'px;top:' + y + 'px;width:' + w + 'px;height:' + h + 'px;';
    this.box = box;
    ['nw','ne','sw','se'].forEach(function(pos) {
      var hd = document.createElement('div');
      hd.dataset.handle = pos;
      var css = 'position:absolute;width:22px;height:22px;background:#007AFF;border:2px solid #fff;border-radius:50%;box-shadow:0 2px 6px rgba(0,0,0,0.3);z-index:2;';
      if (pos === 'nw') css += 'left:-11px;top:-11px;';
      if (pos === 'ne') css += 'right:-11px;top:-11px;';
      if (pos === 'sw') css += 'left:-11px;bottom:-11px;';
      if (pos === 'se') css += 'right:-11px;bottom:-11px;';
      hd.style.cssText = css;
      box.appendChild(hd);
      self.handles[pos] = hd;
    });
    var topH = document.createElement('div');
    topH.dataset.handle = 'top';
    topH.style.cssText = 'display:none;position:absolute;left:50%;margin-left:-30px;top:-10px;width:60px;height:20px;background:#007AFF;border:2px solid #fff;border-radius:10px;z-index:3;';
    box.appendChild(topH);
    this.handles.top = topH;
    var botH = document.createElement('div');
    botH.dataset.handle = 'bottom';
    botH.style.cssText = 'display:none;position:absolute;left:50%;margin-left:-30px;bottom:-10px;width:60px;height:20px;background:#007AFF;border:2px solid #fff;border-radius:10px;z-index:3;';
    box.appendChild(botH);
    this.handles.bottom = botH;

    var tip = document.createElement('div');
    tip.id = '__ab_mask_tip';
    tip.textContent = '拖框移动，拉四角改大小';
    tip.style.cssText = 'position:fixed;top:20px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,0.85);color:#fff;padding:10px 18px;border-radius:20px;font-size:13px;font-family:system-ui;z-index:' + MAX_Z + ';white-space:nowrap;max-width:90vw;overflow:hidden;text-overflow:ellipsis;';
    ov.appendChild(tip);
    this.tipEl = tip;

    var btnsWrap = document.createElement('div');
    btnsWrap.id = '__ab_mask_btns';
    btnsWrap.style.cssText = 'position:fixed;bottom:30px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;gap:10px;z-index:' + MAX_Z + ';align-items:center;';
    var row1 = document.createElement('div');
    row1.style.cssText = 'display:flex;gap:10px;justify-content:center;flex-wrap:wrap;';
    var modeBtn = document.createElement('button');
    modeBtn.textContent = '📌 跟随页面';
    modeBtn.style.cssText = 'padding:10px 18px;background:#fff;color:#333;border:2px solid #ddd;border-radius:24px;font-size:13px;font-weight:600;cursor:pointer;';
    modeBtn.onclick = function() { self._toggleMode(); };
    row1.appendChild(modeBtn);
    this.modeBtn = modeBtn;
    var fillBtn = document.createElement('button');
    fillBtn.textContent = '↔ 左右铺满';
    fillBtn.style.cssText = 'padding:10px 18px;background:#34C759;color:#fff;border:none;border-radius:24px;font-size:13px;font-weight:600;cursor:pointer;';
    fillBtn.onclick = function() { self._fillWidth(); };
    row1.appendChild(fillBtn);
    btnsWrap.appendChild(row1);
    var row2 = document.createElement('div');
    row2.style.cssText = 'display:flex;gap:10px;justify-content:center;';
    var cancel = document.createElement('button');
    cancel.textContent = '取消';
    cancel.style.cssText = 'padding:12px 24px;background:#fff;color:#333;border:none;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;';
    cancel.onclick = function() { self._cancel(); };
    row2.appendChild(cancel);
    var ok = document.createElement('button');
    ok.textContent = '确认';
    ok.style.cssText = 'padding:12px 24px;background:#007AFF;color:#fff;border:none;border-radius:24px;font-size:14px;font-weight:600;cursor:pointer;';
    ok.onclick = function() { self._confirm(); };
    row2.appendChild(ok);
    btnsWrap.appendChild(row2);
    ov.appendChild(btnsWrap);
    ov.appendChild(box);
    document.body.appendChild(ov);
    this._bindDrag(box);
    this._applyModeStyle();
  },
  _toggleMode: function() { this.mode = this.mode === 'doc' ? 'fixed' : 'doc'; this._applyModeStyle(); },
  _applyModeStyle: function() {
    var box = this.box, btn = this.modeBtn, tip = this.tipEl;
    if (!box || !btn) return;
    var hc = this.mode === 'fixed' ? '#FF9500' : '#007AFF';
    if (this.mode === 'fixed') {
      box.style.borderColor = hc; box.style.background = 'rgba(255,149,0,0.2)';
      btn.textContent = '📌 固定在屏幕'; btn.style.background = hc; btn.style.color = '#fff'; btn.style.borderColor = hc;
      if (tip) tip.textContent = '悬浮广告模式：固定屏幕不随滚动';
    } else {
      box.style.borderColor = hc; box.style.background = 'rgba(0,122,255,0.2)';
      btn.textContent = '📌 跟随页面'; btn.style.background = '#fff'; btn.style.color = '#333'; btn.style.borderColor = '#ddd';
      if (tip) tip.textContent = '拖框移动，拉四角改大小';
    }
    var self = this;
    ['nw','ne','sw','se','top','bottom'].forEach(function(p) { if (self.handles[p]) self.handles[p].style.background = hc; });
  },
  _fillWidth: function() {
    var rect = this.box.getBoundingClientRect(), vh = window.innerHeight;
    var top = Math.max(0, Math.min(vh - 40, rect.top));
    var height = Math.max(40, Math.min(vh - top, rect.height));
    this.box.style.left = '0px'; this.box.style.width = '100vw';
    this.box.style.top = top + 'px'; this.box.style.height = height + 'px';
    this.handles.top.style.display = 'block';
    this.handles.bottom.style.display = 'block';
  },
  _bindDrag: function(box) {
    var self = this;
    var getP = function(e) { var t = e.touches && e.touches.length ? e.touches[0] : e; return { x: t.clientX, y: t.clientY }; };
    var onStart = function(e) {
      var p = getP(e), target = e.target;
      var handle = target.dataset && target.dataset.handle;
      var rect = box.getBoundingClientRect();
      if (handle === 'top') self.drag = { mode: 'rt', startY: p.y, top: rect.top, bottom: rect.bottom };
      else if (handle === 'bottom') self.drag = { mode: 'rb', startY: p.y, top: rect.top, bottom: rect.bottom };
      else if (handle && ['nw','ne','sw','se'].indexOf(handle) !== -1) {
        self.drag = { mode: 'rc', handle: handle, startX: p.x, startY: p.y, rect: { left: rect.left, top: rect.top, right: rect.right, bottom: rect.bottom } };
      } else if (target === box) {
        var isFull = Math.abs(rect.width - window.innerWidth) < 2;
        if (isFull) self.drag = { mode: 'mv', startY: p.y, top: rect.top };
        else self.drag = { mode: 'm', startX: p.x, startY: p.y, rect: { left: rect.left, top: rect.top } };
      }
      if (self.drag) { e.preventDefault(); e.stopPropagation(); }
    };
    var onMove = function(e) {
      if (!self.drag) return;
      e.preventDefault();
      var p = getP(e), vh = window.innerHeight, vw = window.innerWidth, minH = 40;
      if (self.drag.mode === 'mv') {
        var dy = p.y - self.drag.startY;
        var nt = Math.max(0, Math.min(vh - box.offsetHeight, self.drag.top + dy));
        box.style.top = nt + 'px'; return;
      }
      var dx = p.x - self.drag.startX, dy = p.y - self.drag.startY;
      if (self.drag.mode === 'm') {
        var nl = Math.max(0, Math.min(vw - box.offsetWidth, self.drag.rect.left + dx));
        var nt2 = Math.max(0, Math.min(vh - box.offsetHeight, self.drag.rect.top + dy));
        box.style.left = nl + 'px'; box.style.top = nt2 + 'px';
      } else if (self.drag.mode === 'rt') {
        var nt3 = Math.max(0, Math.min(self.drag.bottom - minH, self.drag.top + dy));
        box.style.top = nt3 + 'px'; box.style.height = (self.drag.bottom - nt3) + 'px';
      } else if (self.drag.mode === 'rb') {
        var nb = Math.min(vh, Math.max(self.drag.top + minH, self.drag.bottom + dy));
        box.style.height = (nb - self.drag.top) + 'px';
      } else if (self.drag.mode === 'rc') {
        var r = self.drag.rect;
        var left = r.left, top = r.top, right = r.right, bottom = r.bottom;
        if (self.drag.handle === 'nw') { left = r.left + dx; top = r.top + dy; }
        else if (self.drag.handle === 'ne') { right = r.right + dx; top = r.top + dy; }
        else if (self.drag.handle === 'sw') { left = r.left + dx; bottom = r.bottom + dy; }
        else if (self.drag.handle === 'se') { right = r.right + dx; bottom = r.bottom + dy; }
        if (right - left < minH) { if (self.drag.handle.indexOf('e') !== -1) right = left + minH; else left = right - minH; }
        if (bottom - top < minH) { if (self.drag.handle.indexOf('s') !== -1) bottom = top + minH; else top = bottom - minH; }
        left = Math.max(0, left); top = Math.max(0, top);
        right = Math.min(vw, right); bottom = Math.min(vh, bottom);
        box.style.left = left + 'px'; box.style.top = top + 'px';
        box.style.width = (right - left) + 'px'; box.style.height = (bottom - top) + 'px';
      }
    };
    var onEnd = function() { self.drag = null; };
    box.addEventListener('touchstart', onStart, { passive: false });
    box.addEventListener('touchmove', onMove, { passive: false });
    box.addEventListener('touchend', onEnd);
    box.addEventListener('touchcancel', onEnd);
    box.addEventListener('mousedown', onStart);
    document.addEventListener('mousemove', onMove);
    document.addEventListener('mouseup', onEnd);
  },
  _confirm: function() {
    var rect = this.box.getBoundingClientRect();
    this._close();
    if (this._onConfirm) { this._onConfirm(rect); this._onConfirm = null; return; }
    var id = genId();
    var mask;
    if (this.mode === 'fixed') {
      var vw = window.innerWidth, vh = window.innerHeight;
      mask = { id: id, type: 'mask', mode: 'fixed', x: rect.left / vw, y: rect.top / vh, w: rect.width / vw, h: rect.height / vh, enabled: true, createdAt: Date.now() };
    } else {
      var ds = getDocSize();
      var sx = window.scrollX || window.pageXOffset || 0;
      var sy = window.scrollY || window.pageYOffset || 0;
      mask = { id: id, type: 'mask', mode: 'doc', x: (rect.left + sx) / ds.w, y: (rect.top + sy) / ds.h, w: rect.width / ds.w, h: rect.height / ds.h, enabled: true, createdAt: Date.now() };
    }
    Storage.add(mask);
    Renderer.render();
  },
  _cancel: function() { this._onConfirm = null; this._close(); },
  _close: function() {
    if (this.overlay) { this.overlay.remove(); this.overlay = null; }
    this.box = null; this.handles = {}; this.tipEl = null; this.modeBtn = null;
    this.active = false; this.drag = null; this.mode = 'doc';
  }
};

var SimilarFinder = {
  computeHostMatch: function(sourceHost, pageCandidates) {
    var sourceRules = Storage.getHostRules(sourceHost);
    var posRules = sourceRules.filter(function(r) { return r.type === 'pos' && r.enabled !== false; });
    if (posRules.length === 0) return null;
    var groups = {};
    posRules.forEach(function(r) {
      var gid = r.groupId || ('legacy_' + r.id);
      if (!groups[gid]) groups[gid] = { rules: [], struct: null };
      groups[gid].rules.push(r);
      if (r.structFP) groups[gid].struct = r.structFP;
    });
    var groupResults = [];
    for (var gid in groups) {
      var g = groups[gid];
      if (!g.struct) {
        var hits = 0;
        g.rules.forEach(function(r) { if (findElementByFingerprint(r)) hits++; });
        groupResults.push({ groupId: gid, hits: hits, total: g.rules.length, rate: g.rules.length > 0 ? hits / g.rules.length : 0, structMatch: false });
        continue;
      }
      var bestScore = 0;
      for (var i = 0; i < pageCandidates.length; i++) {
        var cand = pageCandidates[i];
        var struct = computeStructure(cand, 2);
        if (!struct) continue;
        var s = compareStructure(g.struct, struct);
        if (s > bestScore) bestScore = s;
      }
      groupResults.push({ groupId: gid, hits: bestScore >= SIMILAR_THRESHOLD ? 1 : 0, total: 1, rate: bestScore, structMatch: true });
    }
    var totalGroups = groupResults.length;
    var matchedGroups = groupResults.filter(function(g) { return g.rate >= SIMILAR_THRESHOLD; }).length;
    var avgRate = 0;
    if (totalGroups > 0) { var sum = 0; groupResults.forEach(function(g) { sum += g.rate; }); avgRate = sum / totalGroups; }
    return { host: sourceHost, totalGroups: totalGroups, matchedGroups: matchedGroups, avgRate: avgRate, groups: groupResults };
  },
  findSimilar: function() {
    var hosts = Storage.allHosts();
    var results = [];
    var pageCandidates = _collectPageCandidates();
    for (var i = 0; i < hosts.length; i++) {
      var h = hosts[i];
      if (h === HOST) continue;
      var r = this.computeHostMatch(h, pageCandidates);
      if (r && r.matchedGroups >= SIMILAR_MIN_GROUPS) results.push(r);
    }
    results.sort(function(a, b) { return b.avgRate - a.avgRate; });
    if (results.length > 0) results = [results[0]];
    return results;
  },
  applyFrom: function(sourceHost) {
    var sourceRules = Storage.getHostRules(sourceHost);
    if (sourceRules.length === 0) return 0;
    var current = Storage.list();
    var added = 0;
    sourceRules.forEach(function(r) {
      var newRule = Object.assign({}, r, { id: (r.type === 'hide' ? genId() : genPosId()), enabled: true, createdAt: Date.now(), fromHost: sourceHost });
      if (r.groupId) newRule.groupId = genGroupId();
      current.push(newRule);
      added++;
    });
    Storage.save(current);
    HideManager.apply();
    return added;
  },
  showPicker: function() {
    var self = this;
    var hostEl = document.createElement('div');
    hostEl.id = '__ab_similar_host';
    hostEl.style.cssText = 'position:fixed;top:0;left:0;width:0;height:0;z-index:' + MAX_Z + ';';
    document.documentElement.appendChild(hostEl);
    var sh = hostEl.attachShadow({ mode: 'closed' });
    var style = document.createElement('style');
    style.textContent = '.mask{position:fixed;inset:0;background:rgba(0,0,0,0.45);display:flex;align-items:center;justify-content:center;font-family:system-ui,sans-serif;}'
      + '.panel{background:#fff;border-radius:16px;width:90vw;max-width:420px;max-height:80vh;padding:18px;box-sizing:border-box;display:flex;flex-direction:column;gap:12px;box-shadow:0 10px 40px rgba(0,0,0,0.25);}'
      + '.title{font-size:16px;font-weight:700;text-align:center;color:#1a1a1a;}'
      + '.subtitle{font-size:12px;color:#888;text-align:center;line-height:1.5;}'
      + '.list{background:#f8f8f8;border-radius:10px;padding:8px;max-height:45vh;overflow-y:auto;}'
      + '.item{background:#fff;border-radius:8px;padding:10px 12px;margin-bottom:6px;display:flex;align-items:center;gap:10px;cursor:pointer;}'
      + '.item:hover{background:#f5f5f5;}'
      + '.item .cb{width:18px;height:18px;flex-shrink:0;cursor:pointer;}'
      + '.item .info{flex:1;min-width:0;}'
      + '.item .h{font-size:13px;font-weight:600;color:#333;word-break:break-all;display:flex;align-items:center;gap:6px;flex-wrap:wrap;}'
      + '.item .h .remark-text{color:#0056b3;}'
      + '.item .edit-btn{font-size:11px;color:#007AFF;cursor:pointer;background:transparent;border:none;padding:2px 4px;flex-shrink:0;}'
      + '.item .meta{font-size:11px;color:#999;margin-top:2px;}'
      + '.empty{text-align:center;color:#bbb;padding:20px 0;font-size:13px;}'
      + '.btns{display:flex;gap:8px;}'
      + '.btns button{flex:1;padding:12px;border:none;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;}'
      + '.btn-cancel{background:#f0f2f5;color:#444;}'
      + '.btn-apply{background:#007AFF;color:#fff;}'
      + '.tip{font-size:11px;color:#aaa;text-align:center;line-height:1.4;}';
    sh.appendChild(style);
    var mask = document.createElement('div');
    mask.className = 'mask';
    var panel = document.createElement('div');
    panel.className = 'panel';
    mask.appendChild(panel);
    sh.appendChild(mask);
    var title = document.createElement('div');
    title.className = 'title';
    title.textContent = '📋 选择模板 / 查找相似网站';
    panel.appendChild(title);
    var subtitle = document.createElement('div');
    subtitle.className = 'subtitle';
    subtitle.textContent = '勾选要套用规则的网站（默认不勾选）';
    panel.appendChild(subtitle);
    var listBox = document.createElement('div');
    listBox.className = 'list';
    panel.appendChild(listBox);
    var buildList = function() {
      var allHosts = Storage.allHosts();
      var remarksMap = Storage.getAllRemarks();
      var results = [];
      allHosts.forEach(function(h) {
        var rd = remarksMap[h];
        var rt = '', ua = 0;
        if (typeof rd === 'string') rt = rd;
        else if (rd && typeof rd === 'object') { rt = rd.text || ''; ua = rd.updatedAt || 0; }
        results.push({ host: h, remark: rt, updatedAt: ua, isCurrent: h === HOST, matchedGroups: 0, totalGroups: 0, avgRate: 0, isCalculated: false });
      });
      results.sort(function(a, b) {
        if (a.isCurrent && !b.isCurrent) return -1;
        if (!a.isCurrent && b.isCurrent) return 1;
        if (a.remark && b.remark) {
          if (b.updatedAt !== a.updatedAt) return b.updatedAt - a.updatedAt;
          return a.remark.localeCompare(b.remark);
        }
        if (a.remark) return -1;
        if (b.remark) return 1;
        return a.host.localeCompare(b.host);
      });
      return results;
    };
    var renderList = function(dataList) {
      listBox.innerHTML = '';
      if (dataList.length === 0) {
        var em = document.createElement('div');
        em.className = 'empty';
        em.textContent = '暂无已保存的网站模板';
        listBox.appendChild(em);
        return;
      }
      dataList.forEach(function(r) {
        var item = document.createElement('div');
        item.className = 'item';
        if (r.isCurrent) { item.style.background = '#f0fbf5'; item.style.border = '1px solid #34C759'; }
        var cb = document.createElement('input');
        cb.type = 'checkbox'; cb.className = 'cb'; cb.dataset.host = r.host; cb.checked = false;
        item.appendChild(cb);
        var info = document.createElement('div');
        info.className = 'info';
        var hDiv = document.createElement('div');
        hDiv.className = 'h';
        var nameSpan = document.createElement('span');
        if (r.remark) { nameSpan.textContent = '📝 ' + r.remark; nameSpan.className = 'remark-text'; }
        else nameSpan.textContent = r.host;
        hDiv.appendChild(nameSpan);
        if (r.isCurrent) {
          var badge = document.createElement('span');
          badge.textContent = '当前网站';
          badge.style.cssText = 'font-size:10px;background:#34C759;color:#fff;padding:1px 6px;border-radius:8px;flex-shrink:0;font-weight:500;';
          hDiv.appendChild(badge);
        }
        var editBtn = document.createElement('button');
        editBtn.className = 'edit-btn';
        editBtn.textContent = '✏️ 编辑';
        editBtn.onclick = function(e) {
          e.stopPropagation(); e.preventDefault();
          var current = r.remark || '';
          var newRemark = prompt('为网站 ' + r.host + ' 设置备注名（留空则删除）：', current);
          if (newRemark !== null) {
            Storage.setRemark(r.host, newRemark);
            showToast('✅ 备注已更新');
            renderList(buildList());
          }
        };
        hDiv.appendChild(editBtn);
        info.appendChild(hDiv);
        var meta = document.createElement('div');
        meta.className = 'meta';
        var mt = r.host;
        if (r.isCalculated) { mt += ' · 相似度 ' + Math.round(r.avgRate * 100) + '%'; if (r.avgRate >= SIMILAR_THRESHOLD) mt += ' ✅'; }
        meta.textContent = mt;
        info.appendChild(meta);
        item.appendChild(info);
        item.addEventListener('click', function(e) { if (e.target !== cb && e.target !== editBtn) cb.checked = !cb.checked; });
        listBox.appendChild(item);
      });
    };
    renderList(buildList());
    var btns = document.createElement('div');
    btns.className = 'btns';
    btns.style.marginTop = '4px';
    var closeBtn = document.createElement('button');
    closeBtn.className = 'btn-cancel'; closeBtn.textContent = '关闭';
    var scanBtn = document.createElement('button');
    scanBtn.className = 'btn-cancel'; scanBtn.style.background = '#FF9500'; scanBtn.style.color = '#fff';
    scanBtn.textContent = '🔍 自动扫描';
    var applyBtn = document.createElement('button');
    applyBtn.className = 'btn-apply'; applyBtn.textContent = '套用选中';
    btns.appendChild(closeBtn); btns.appendChild(scanBtn); btns.appendChild(applyBtn);
    panel.appendChild(btns);
    var tip = document.createElement('div');
    tip.className = 'tip';
    tip.textContent = '提示：修改过备注的网站会自动排在最上面';
    panel.appendChild(tip);
    var close = function() { if (hostEl.parentNode) hostEl.parentNode.removeChild(hostEl); };
    closeBtn.onclick = close;
    scanBtn.onclick = function() {
      scanBtn.textContent = '⏳ 扫描中...';
      scanBtn.disabled = true;
      setTimeout(function() {
        var sr = self.findSimilar();
        var currentList = buildList();
        var map = {};
        sr.forEach(function(r) {
          var rd = Storage.getRemarkRaw(r.host);
          r.remark = (typeof rd === 'string' ? rd : (rd ? rd.text : '')) || '';
          r.updatedAt = (rd && rd.updatedAt) ? rd.updatedAt : 0;
          r.isCalculated = true;
          r.isCurrent = false;
          map[r.host] = r;
        });
        var merged = [];
        sr.forEach(function(r) { merged.push(r); });
        currentList.forEach(function(r) { if (!map[r.host]) merged.push(r); });
        merged.sort(function(a, b) {
          if (a.isCurrent && !b.isCurrent) return -1;
          if (!a.isCurrent && b.isCurrent) return 1;
          if (a.isCalculated && !b.isCalculated) return -1;
          if (!a.isCalculated && b.isCalculated) return 1;
          if (a.isCalculated && b.isCalculated) { if (b.avgRate !== a.avgRate) return b.avgRate - a.avgRate; }
          if (a.remark && b.remark) { if (b.updatedAt !== a.updatedAt) return b.updatedAt - a.updatedAt; return a.remark.localeCompare(b.remark); }
          if (a.remark) return -1;
          if (b.remark) return 1;
          return a.host.localeCompare(b.host);
        });
        renderList(merged);
        scanBtn.style.display = 'none';
        subtitle.textContent = '自动扫描完成，已按相似度排序，可直接勾选套用';
      }, 50);
    };
    applyBtn.onclick = function() {
      var checked = listBox.querySelectorAll('input.cb:checked');
      if (checked.length === 0) { alert('请至少勾选一个网站'); return; }
      var total = 0, skippedSelf = false;
      for (var i = 0; i < checked.length; i++) {
        var targetHost = checked[i].dataset.host;
        if (targetHost === HOST) { skippedSelf = true; continue; }
        total += self.applyFrom(targetHost);
      }
      close();
      if (skippedSelf) showToast('⚠️ 已跳过当前网站（不能套用自己）');
      else if (total > 0) showToast('✅ 已套用 ' + total + ' 条规则');
    };
    mask.addEventListener('click', function(e) { if (e.target === mask) close(); });
  }
};

function _collectPageCandidates() {
  var all = document.querySelectorAll('div, section, article, aside, main');
  var cands = [];
  for (var i = 0; i < all.length; i++) {
    var el = all[i];
    if (el === document.body || el === document.documentElement) continue;
    if (isOurElement(el)) continue;
    var r = el.getBoundingClientRect();
    if (r.width < 50 || r.height < 30) continue;
    if (r.width > window.innerWidth * 1.2) continue;
    cands.push(el);
  }
  return cands;
}

function openListPanel() {
  var old = document.getElementById('__ab_bl_host');
  if (old && old.parentNode) old.parentNode.removeChild(old);
  var hostEl = document.createElement('div');
  hostEl.id = '__ab_bl_host';
  hostEl.style.cssText = 'position:fixed;top:0;left:0;width:0;height:0;z-index:' + MAX_Z + ';';
  document.documentElement.appendChild(hostEl);
  var sh = hostEl.attachShadow({ mode: 'closed' });
  var style = document.createElement('style');
  style.textContent = '.mask{position:fixed;inset:0;background:rgba(0,0,0,0.45);display:flex;align-items:center;justify-content:center;font-family:system-ui,sans-serif;}'
    + '.panel{background:#fff;border-radius:16px;width:90vw;max-width:440px;max-height:85vh;padding:16px;box-sizing:border-box;display:flex;flex-direction:column;gap:10px;box-shadow:0 10px 40px rgba(0,0,0,0.25);overflow-y:auto;}'
    + '.title{font-size:16px;font-weight:700;text-align:center;color:#1a1a1a;}'
    + '.subtitle{font-size:12px;color:#888;text-align:center;line-height:1.5;}'
    + '.section-title{font-size:12px;color:#666;font-weight:600;padding:4px 2px 2px;}'
    + '.list{background:#f8f8f8;border-radius:10px;padding:6px;max-height:22vh;overflow-y:auto;}'
    + '.item{background:#fff;border-radius:8px;padding:7px 10px;margin-bottom:4px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12px;}'
    + '.item .key{flex:1;min-width:0;word-break:break-all;color:#333;}'
    + '.item .del{background:#ff4d4f;color:#fff;border:none;border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer;flex-shrink:0;}'
    + '.empty{text-align:center;color:#bbb;padding:14px 0;font-size:12px;}'
    + '.input-row{display:flex;gap:6px;}'
    + '.input-row input{flex:1;padding:9px 10px;border:1px solid #ddd;border-radius:8px;font-size:12px;outline:none;min-width:0;}'
    + '.input-row button{padding:9px 14px;background:#FF3B30;color:#fff;border:none;border-radius:8px;font-size:12px;font-weight:600;cursor:pointer;flex-shrink:0;}'
    + '.input-row button.white-btn{background:#34C759;}'
    + '.btns{display:flex;gap:8px;}'
    + '.btns button{flex:1;padding:11px;border:none;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;}'
    + '.btn-cancel{background:#f0f2f5;color:#444;}'
    + '.btn-danger{background:#ff4d4f;color:#fff;}'
    + '.tip{font-size:11px;color:#aaa;text-align:center;line-height:1.5;}';
  sh.appendChild(style);
  var mask = document.createElement('div');
  mask.className = 'mask';
  var panel = document.createElement('div');
  panel.className = 'panel';
  mask.appendChild(panel);
  sh.appendChild(mask);

  var title = document.createElement('div');
  title.className = 'title';
  title.textContent = '🚫 黑白名单管理';
  panel.appendChild(title);

  var subtitle = document.createElement('div');
  subtitle.className = 'subtitle';
  subtitle.textContent = '白名单命中直接放行，黑名单命中直接拦下';
  panel.appendChild(subtitle);

  var stW = document.createElement('div');
  stW.className = 'section-title';
  stW.textContent = '✅ 白名单（命中直接放行）';
  panel.appendChild(stW);

  var whiteListBox = document.createElement('div');
  whiteListBox.className = 'list';
  panel.appendChild(whiteListBox);

  var whiteInputRow = document.createElement('div');
  whiteInputRow.className = 'input-row';
  var whiteInput = document.createElement('input');
  whiteInput.type = 'text';
  whiteInput.placeholder = '输入域名，逗号分隔可批量加';
  whiteInputRow.appendChild(whiteInput);
  var whiteAddBtn = document.createElement('button');
  whiteAddBtn.className = 'white-btn';
  whiteAddBtn.textContent = '加入白名单';
  whiteAddBtn.onclick = function() {
    var v = whiteInput.value;
    if (!v.trim()) return;
    var added = DomainList.addMany('white', v);
    if (added > 0) { showToast('白名单 +' + added); whiteInput.value = ''; renderWhite(); }
    else showToast('无新词可加（可能已存在）');
  };
  whiteInputRow.appendChild(whiteAddBtn);
  panel.appendChild(whiteInputRow);

  var stB = document.createElement('div');
  stB.className = 'section-title';
  stB.textContent = '🚫 黑名单（命中直接拦）';
  panel.appendChild(stB);

  var blackListBox = document.createElement('div');
  blackListBox.className = 'list';
  panel.appendChild(blackListBox);

  var blackInputRow = document.createElement('div');
  blackInputRow.className = 'input-row';
  var blackInput = document.createElement('input');
  blackInput.type = 'text';
  blackInput.placeholder = '输入域名，逗号分隔可批量加';
  blackInputRow.appendChild(blackInput);
  var blackAddBtn = document.createElement('button');
  blackAddBtn.textContent = '加入黑名单';
  blackAddBtn.onclick = function() {
    var v = blackInput.value;
    if (!v.trim()) return;
    var added = DomainList.addMany('black', v);
    if (added > 0) { showToast('黑名单 +' + added); blackInput.value = ''; renderBlack(); }
    else showToast('无新词可加（可能已存在）');
  };
  blackInputRow.appendChild(blackAddBtn);
  panel.appendChild(blackInputRow);

  var tip = document.createElement('div');
  tip.className = 'tip';
  tip.textContent = '加 22bet.com 会自动剥成 22bet，能匹配 22bet.net、a22bet.cc 等变体';
  panel.appendChild(tip);

  var renderList = function(box, type) {
    box.innerHTML = '';
    var list = DomainList.load(type);
    if (list.length === 0) {
      var em = document.createElement('div');
      em.className = 'empty';
      em.textContent = type === 'white' ? '暂无白名单' : '暂无黑名单';
      box.appendChild(em);
      return;
    }
    list.slice().sort().forEach(function(key) {
      var item = document.createElement('div');
      item.className = 'item';
      var keySpan = document.createElement('span');
      keySpan.className = 'key';
      keySpan.textContent = key;
      item.appendChild(keySpan);
      var del = document.createElement('button');
      del.className = 'del';
      del.textContent = '删除';
      del.onclick = function() {
        DomainList.remove(type, key);
        if (type === 'white') renderWhite(); else renderBlack();
      };
      item.appendChild(del);
      box.appendChild(item);
    });
  };
  var renderWhite = function() { renderList(whiteListBox, 'white'); };
  var renderBlack = function() { renderList(blackListBox, 'black'); };
  renderWhite();
  renderBlack();

  var btns = document.createElement('div');
  btns.className = 'btns';
  var clearWhiteBtn = document.createElement('button');
  clearWhiteBtn.className = 'btn-cancel';
  clearWhiteBtn.textContent = '清空白名单';
  clearWhiteBtn.onclick = function() {
    if (confirm('确定清空所有白名单？')) { DomainList.clear('white'); renderWhite(); }
  };
  btns.appendChild(clearWhiteBtn);
  var clearBlackBtn = document.createElement('button');
  clearBlackBtn.className = 'btn-danger';
  clearBlackBtn.textContent = '清空黑名单';
  clearBlackBtn.onclick = function() {
    if (confirm('确定清空所有黑名单？')) { DomainList.clear('black'); renderBlack(); }
  };
  btns.appendChild(clearBlackBtn);
  panel.appendChild(btns);

  var closeBtn = document.createElement('button');
  closeBtn.className = 'btn-cancel';
  closeBtn.style.cssText = 'width:100%;padding:11px;border:none;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;background:#f0f2f5;color:#444;';
  closeBtn.textContent = '关闭';
  closeBtn.onclick = function() { if (hostEl.parentNode) hostEl.parentNode.removeChild(hostEl); };
  panel.appendChild(closeBtn);

  mask.addEventListener('click', function(e) { if (e.target === mask) closeBtn.onclick(); });
}

var Panel = {
  host: null, shadow: null,
  open: function() {
    if (this.host) { this.host.remove(); this.host = null; this.shadow = null; }
    var host = document.createElement('div');
    host.id = '__ab_panel_host';
    host.style.cssText = 'position:fixed;top:0;left:0;width:0;height:0;z-index:' + MAX_Z + ';';
    document.documentElement.appendChild(host);
    this.host = host;
    this.shadow = host.attachShadow({ mode: 'closed' });
    var style = document.createElement('style');
    style.textContent = '.mask{position:fixed;inset:0;background:rgba(0,0,0,0.4);display:flex;align-items:center;justify-content:center;font-family:system-ui,sans-serif;}'
      + '.panel{background:#fff;border-radius:16px;width:92vw;max-width:460px;max-height:85vh;padding:16px;box-sizing:border-box;display:flex;flex-direction:column;gap:10px;box-shadow:0 10px 40px rgba(0,0,0,0.2);overflow-y:auto;}'
      + '.title{font-size:17px;font-weight:700;text-align:center;color:#1a1a1a;}'
      + '.info{font-size:12px;color:#888;text-align:center;display:flex;align-items:center;justify-content:center;gap:6px;}'
      + '.info .host{word-break:break-all;}'
      + '.info .edit-remark{background:transparent;border:none;color:#007AFF;cursor:pointer;font-size:14px;padding:2px 4px;flex-shrink:0;}'
      + '.section-title{font-size:12px;color:#666;font-weight:600;padding:6px 4px 2px;}'
      + '.list{background:#f8f8f8;border-radius:10px;padding:6px;max-height:22vh;overflow-y:auto;}'
      + '.group{background:#fff;border-radius:8px;padding:8px 10px;margin-bottom:6px;}'
      + '.group-head{font-size:12px;font-weight:600;color:#333;display:flex;justify-content:space-between;align-items:center;margin-bottom:4px;gap:8px;}'
      + '.group-meta{font-size:10px;color:#999;font-weight:400;flex:1;min-width:0;word-break:break-all;}'
      + '.group-acts{display:flex;gap:4px;flex-shrink:0;}'
      + '.child{font-size:10px;color:#888;padding:2px 0 2px 10px;border-left:2px solid #eee;margin-left:4px;}'
      + '.item{background:#fff;border-radius:8px;padding:8px 10px;margin-bottom:4px;display:flex;align-items:center;justify-content:space-between;font-size:12px;gap:6px;}'
      + '.item-desc{color:#666;flex:1;min-width:0;word-break:break-all;font-size:11px;}'
      + '.item-actions{display:flex;gap:4px;flex-shrink:0;}'
      + '.btn{border:none;border-radius:8px;padding:8px 12px;font-size:12px;font-weight:600;cursor:pointer;background:#f0f2f5;color:#444;}'
      + '.btn.primary{background:#007AFF;color:#fff;}'
      + '.btn.hide-btn{background:#FF3B30;color:#fff;}'
      + '.btn.find-btn{background:#FF9500;color:#fff;}'
      + '.btn.danger{background:#ff4d4f;color:#fff;}'
      + '.btn.small{padding:4px 8px;font-size:10px;}'
      + '.empty{text-align:center;color:#bbb;padding:10px 0;font-size:11px;}'
      + '.btn-row{display:flex;gap:6px;}'
      + '.btn-row .btn{flex:1;padding:9px 4px;font-size:12px;}'
      + '.auto-tag{color:#007AFF;font-size:9px;background:#e6f0ff;padding:1px 4px;border-radius:4px;margin-right:2px;}';
    this.shadow.appendChild(style);
    var mask = document.createElement('div');
    mask.className = 'mask';
    var self = this;
    mask.addEventListener('click', function(e) { if (e.target === mask) self.close(); });
    var panel = document.createElement('div');
    panel.className = 'panel';
    mask.appendChild(panel);
    this._render(panel);
    this.shadow.appendChild(mask);
  },
  close: function() { if (this.host) { this.host.remove(); this.host = null; this.shadow = null; } },
  _render: function(panel) {
    var self = this;
    panel.innerHTML = '';
    var list = Storage.list();
    var hideRules = list.filter(function(m) { return m.type === 'hide'; });
    var posRules = list.filter(function(m) { return m.type === 'pos'; });
    var autoCount = hideRules.filter(function(m) { return m.auto; }).length;
    hideRules.sort(function(a, b) { return (b.createdAt || 0) - (a.createdAt || 0); });
    var posGroups = {};
    posRules.forEach(function(r) {
      var gid = r.groupId || ('legacy_' + r.id);
      if (!posGroups[gid]) posGroups[gid] = [];
      posGroups[gid].push(r);
    });
    var groupIds = Object.keys(posGroups);
    groupIds.sort(function(a, b) {
      var tA = 0, tB = 0;
      posGroups[a].forEach(function(r) { if (r.createdAt > tA) tA = r.createdAt; });
      posGroups[b].forEach(function(r) { if (r.createdAt > tB) tB = r.createdAt; });
      return tB - tA;
    });
    var title = document.createElement('div');
    title.className = 'title';
    title.textContent = '📋 管理广告内容';
    panel.appendChild(title);
    var info = document.createElement('div');
    info.className = 'info';
    var remark = Storage.getRemark(HOST);
    var span = document.createElement('span');
    span.className = 'host';
    span.textContent = remark ? ('📝 ' + remark) : HOST;
    info.appendChild(span);
    var editBtn = document.createElement('button');
    editBtn.className = 'edit-remark';
    editBtn.textContent = '✏️';
    editBtn.onclick = function() {
      var current = Storage.getRemark(HOST);
      var newRemark = prompt('为当前网站设置备注名（留空则删除）：', current);
      if (newRemark !== null) { Storage.setRemark(HOST, newRemark); showToast('✅ 备注已更新'); self._render(panel); }
    };
    info.appendChild(editBtn);
    panel.appendChild(info);

    var st0 = document.createElement('div');
    st0.className = 'section-title';
    st0.textContent = '📍 位置记忆 (' + groupIds.length + ' 组 / ' + posRules.length + ' 条)';
    panel.appendChild(st0);
    var list0 = document.createElement('div');
    list0.className = 'list';
    if (groupIds.length === 0) {
      var em0 = document.createElement('div');
      em0.className = 'empty';
      em0.textContent = '暂无位置记忆';
      list0.appendChild(em0);
    } else {
      groupIds.forEach(function(gid) {
        var rules = posGroups[gid];
        var rootRule = rules.find(function(r) { return r.isRoot; }) || rules[0];
        var groupEl = document.createElement('div');
        groupEl.className = 'group';
        var head = document.createElement('div');
        head.className = 'group-head';
        var meta = document.createElement('span');
        meta.className = 'group-meta';
        var desc = rootRule.tag + ' · ' + rootRule.w + '×' + rootRule.h;
        if (rootRule.path) { var p = rootRule.path; desc += ' · 路径[' + (p.length > 6 ? '…' + p.slice(-4).join('/') : p.join('/')) + ']'; }
        if (rootRule.fromHost) desc += ' · 来自 ' + rootRule.fromHost;
        meta.textContent = desc;
        head.appendChild(meta);
        var acts = document.createElement('div');
        acts.className = 'group-acts';
        var childBox = document.createElement('div');
        childBox.style.display = 'none';
        rules.forEach(function(r) {
          var row = document.createElement('div');
          row.className = 'child';
          row.textContent = (r.isRoot ? '★ ' : '· ') + r.tag + ' · ' + r.w + '×' + r.h;
          childBox.appendChild(row);
        });
        var expandBtn = document.createElement('button');
        expandBtn.className = 'btn small';
        expandBtn.textContent = '展开(' + rules.length + ')';
        var expanded = false;
        expandBtn.onclick = function() {
          expanded = !expanded;
          childBox.style.display = expanded ? 'block' : 'none';
          expandBtn.textContent = (expanded ? '收起' : '展开') + '(' + rules.length + ')';
        };
        acts.appendChild(expandBtn);
        var delBtn = document.createElement('button');
        delBtn.className = 'btn small danger';
        delBtn.textContent = '删除';
        delBtn.onclick = function() { Storage.removeGroup(gid); HideManager.apply(); self._render(panel); };
        acts.appendChild(delBtn);
        head.appendChild(acts);
        groupEl.appendChild(head);
        groupEl.appendChild(childBox);
        list0.appendChild(groupEl);
      });
    }
    panel.appendChild(list0);

    var st1 = document.createElement('div');
    st1.className = 'section-title';
    st1.textContent = '🚫 已隐藏广告 (' + hideRules.length + '，其中自动 ' + autoCount + ')';
    panel.appendChild(st1);
    if (autoCount > 0) {
      var autoRow = document.createElement('div');
      autoRow.style.cssText = 'display:flex;justify-content:flex-end;padding:0 4px;';
      var clearAutoBtn = document.createElement('button');
      clearAutoBtn.className = 'btn small danger';
      clearAutoBtn.textContent = '清除所有自动规则 (' + autoCount + ')';
      clearAutoBtn.onclick = function() {
        if (confirm('确定清除所有自动识别添加的规则？手动添加的不受影响。')) {
          Storage.removeAllAuto(); HideManager.apply(); self._render(panel);
        }
      };
      autoRow.appendChild(clearAutoBtn);
      panel.appendChild(autoRow);
    }
    var list1 = document.createElement('div');
    list1.className = 'list';
    if (hideRules.length === 0) {
      var em1 = document.createElement('div');
      em1.className = 'empty';
      em1.textContent = '暂无隐藏规则';
      list1.appendChild(em1);
    } else {
      hideRules.forEach(function(m) {
        var item = document.createElement('div');
        item.className = 'item';
        var desc = document.createElement('div');
        desc.className = 'item-desc';
        if (m.auto) {
          var tag = document.createElement('span');
          tag.className = 'auto-tag';
          tag.textContent = '🤖自动';
          desc.appendChild(tag);
        }
        desc.appendChild(document.createTextNode(m.selector || ''));
        item.appendChild(desc);
        var acts = document.createElement('div');
        acts.className = 'item-actions';
        var recoverBtn = document.createElement('button');
        recoverBtn.className = 'btn small';
        recoverBtn.textContent = '恢复';
        recoverBtn.style.background = '#34C759';
        recoverBtn.style.color = '#fff';
        recoverBtn.onclick = function() {
          Storage.remove(m.id);
          try {
            var hid = document.querySelectorAll('[data-ab-hide-rule="' + m.id + '"]');
            for (var k = 0; k < hid.length; k++) { delete hid[k].dataset.abHideRule; delete hid[k].dataset.abHideMode; }
          } catch(e) {}
          var allRules = Storage.list();
          var newRules = allRules.filter(function(r) { return !(r.type === 'pos' && Math.abs((r.createdAt || 0) - (m.createdAt || 0)) < 2000); });
          Storage.save(newRules);
          HideManager.apply();
          self._render(panel);
        };
        acts.appendChild(recoverBtn);
        item.appendChild(acts);
        list1.appendChild(item);
      });
    }
    panel.appendChild(list1);

    var btnRow = document.createElement('div');
    btnRow.className = 'btn-row';
    var clearBtn = document.createElement('button');
    clearBtn.className = 'btn danger';
    clearBtn.textContent = '清空全部';
    clearBtn.onclick = function() {
      if (confirm('确定清空本网站所有规则？')) {
        Storage.clear();
        Renderer.render();
        try {
          var hid = document.querySelectorAll('[data-ab-hide-rule]');
          for (var k = 0; k < hid.length; k++) { delete hid[k].dataset.abHideRule; delete hid[k].dataset.abHideMode; }
        } catch(e) {}
        self._render(panel);
      }
    };
    btnRow.appendChild(clearBtn);
    var findBtn = document.createElement('button');
    findBtn.className = 'btn find-btn';
    findBtn.textContent = '查找相似网站';
    findBtn.onclick = function() { self.close(); setTimeout(function() { SimilarFinder.showPicker(); }, 100); };
    btnRow.appendChild(findBtn);
    var hideBtn = document.createElement('button');
    hideBtn.className = 'btn hide-btn';
    hideBtn.textContent = '点击隐藏';
    hideBtn.onclick = function() { self.close(); setTimeout(function() { ClickSelector.start(); }, 100); };
    btnRow.appendChild(hideBtn);
    panel.appendChild(btnRow);

    var closeBtn = document.createElement('button');
    closeBtn.className = 'btn';
    closeBtn.style.width = '100%';
    closeBtn.textContent = '关闭';
    closeBtn.onclick = function() { self.close(); };
    panel.appendChild(closeBtn);
  }
};

function startGlobalWatch() {
  window.addEventListener('resize', function() { Renderer.render(); });
  window.addEventListener('orientationchange', function() { setTimeout(function() { Renderer.render(); }, 300); });
  if (window.MutationObserver) {
    var obs = new MutationObserver(function() { HideManager.schedule(); });
    obs.observe(document.documentElement, { childList: true, subtree: true });
  }
  HideManager.startPeriodic();
}

var _menuIds = {};

function cycleHideMode() {
  var cur = getHideMode();
  var next = cur === 'smart' ? 'keep' : (cur === 'keep' ? 'clean' : 'smart');
  setHideMode(next);
  showToast('广告类型已切换：' + getHideModeLabel(next) + '（' + getHideModeHint(next) + '）');
  registerMenu();
  HideManager.apply();
}

function cycleAutoDetect() {
  var cur = getAutoDetectLevel();
  var next = cur === 'off' ? 'conservative' : (cur === 'conservative' ? 'aggressive' : 'off');
  setAutoDetectLevel(next);
  showToast('自动识别广告：' + getAutoDetectLabel(next) + '（' + getAutoDetectHint(next) + '）');
  registerMenu();
  if (next !== 'off') setTimeout(function() { runAutoDetect(); }, 200);
}

function registerMenu() {
  try {
    ['jump', 'mode', 'auto', 'list', 'blacklist'].forEach(function(k) {
      if (_menuIds[k] && typeof GM_unregisterMenuCommand === 'function') {
        try { GM_unregisterMenuCommand(_menuIds[k]); } catch(e) {}
        _menuIds[k] = null;
      }
    });
    GM_registerMenuCommand('1 🚫 点击隐藏广告', function() { ClickSelector.start(); });
    GM_registerMenuCommand('2 🔍 查找相似网站', function() { SimilarFinder.showPicker(); });
    GM_registerMenuCommand('3 📋 管理广告内容', function() { Panel.open(); });
    _menuIds.mode = GM_registerMenuCommand('4 ⚙️ 广告类型：' + getHideModeLabel(getHideMode()), function() { cycleHideMode(); });
    _menuIds.auto = GM_registerMenuCommand('5 🤖 自动识别广告：' + getAutoDetectLabel(getAutoDetectLevel()), function() { cycleAutoDetect(); });
    _menuIds.jump = GM_registerMenuCommand('6 🎯 跨域跳转拦截：' + JumpBlocker.getLabel(), function() { JumpBlocker.cycle(); });
    _menuIds.list = GM_registerMenuCommand('7 🚫 黑白名单管理', function() { openListPanel(); });
  } catch(e) {}
}

registerMenu();

function bootstrap() {
  StyleManager.ensure();
  Renderer.ensure();
  Renderer.render();
  HideManager.apply();
  startGlobalWatch();
  setTimeout(function() { try { runAutoDetect(); } catch(e) {} }, 1200);
}

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

})();