.flight-demo { margin: 1.8rem 0; }
.flight-demo picture, .flight-demo img { display: block; width: 100%; height: auto; }
.flight-demo img { border-radius: 12px; }
.flight-demo figcaption { margin-top: .7rem; font-size: .9em; line-height: 1.7; color: #607086; }
.post-article-content .katex-display { max-width: 100%; overflow-x: auto; overflow-y: hidden; padding: .4em 0; }
.post-article-content > table th { background: #19354f !important; color: #fff !important; text-shadow: none; }
.post-article-content h2, .post-article-content h3 { scroll-margin-top: 80px; }