X：折叠长推文

// Collapse long tweets behind a click-to-expand toggle for a calmer timeline
function clampTweets() {
  document.querySelectorAll('[data-testid="tweetText"]').forEach(function (t) {
    if (t.dataset.jzClamped) { return; }
    if (t.scrollHeight > 220) {
      t.dataset.jzClamped = '1';
      t.style.maxHeight = '200px';
      t.style.overflow = 'hidden';
      t.style.cursor = 'pointer';
      t.title = 'Click to expand';
      t.addEventListener('click', function (e) {
        if (t.style.maxHeight) {
          t.style.maxHeight = '';
          t.style.overflow = '';
          e.stopPropagation();
        }
      }, true);
    }
  });
}
clampTweets();
const obs = new MutationObserver(clampTweets);
obs.observe(document.documentElement, { childList: true, subtree: true });