* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft YaHei", Arial, sans-serif; }
.container { max-width: 1200px; margin: 0 auto; }
@media (max-width: 768px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
  .grid-cols-1 md:grid-cols-2 { grid-template-columns: 1fr; }
}
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background-color: #c1c1c1; border-radius: 3px; }
::-webkit-scrollbar-track { background-color: #f5f5f5; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }