html { scroll-behavior: smooth; }
body {
    color: #172033;
    background: #ffffff;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { transition: color .2s ease, background .2s ease, transform .2s ease, border-color .2s ease; }
@media (prefers-reduced-motion: reduce) {
    * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}