kkai0828

// 條件等待：等到指定元素出現
function waitForElement(selector, timeout = 15000, interval = 300) {
  return new Promise((resolve, reject) => { const end = Date.now() + timeout
    ;(function check() {
      const el = document.querySelector(selector)
      if (el) return resolve(el)
      if (Date.now() > end)
        return reject(new Error('元素等待超時: ' + selector))
      setTimeout(check, interval)
    })()