// 终极诊断：拦截弹窗是canvas/图片渲染或iframe——查iframe和shadow DOM
const pw = require('playwright-core');
(async () => {
  const b = await pw.chromium.connectOverCDP('http://127.0.0.1:9223');
  const p = b.contexts()[0].pages().find(x => /recommend/.test(x.url()));
  const st = await p.evaluate(() => {
    const m = document.querySelector('.km-modal--open, .km-modal:not([style*="display: none"])');
    if (!m) return { noModal: true };
    // 弹窗内部结构全景
    const walk = (el, depth) => {
      if (!el || depth > 3) return '';
      let out = `${'.'.repeat(depth)}<${el.tagName.toLowerCase()} class="${String(el.className).slice(0, 40)}" text="${(el.childNodes.length===1&&el.textContent||'').trim().slice(0,30)}">\n`;
      if (el.tagName === 'IFRAME') out += `${'.'.repeat(depth+1)}IFRAME src=${el.src?.slice(0, 80)}\n`;
      for (const c of el.children || []) out += walk(c, depth + 1);
      return out;
    };
    const iframes = [...document.querySelectorAll('iframe')].map(f => ({ src: f.src?.slice(0, 70), visible: f.offsetParent !== null }));
    return {
      modalHTML: m.outerHTML.slice(0, 600),
      iframes,
    };
  }).catch(e => ({ err: String(e).slice(0, 80) }));
  console.log(JSON.stringify(st, null, 1).slice(0, 1200));
  process.exit(0);
})().catch(e => { console.log('ERR:', String(e).slice(0, 100)); process.exit(1); });