/* 隐藏滚动条但保留滚动功能 */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* 键盘焦点样式 */
.focus-ring:focus-visible { outline: 2px solid #0057ff; outline-offset: 2px; }

/* 平滑滚动 + 尊重减少动效设置 */
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}