/* 动画效果类 */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 页面加载动画 */
.page-loading {
    overflow: hidden;
}

@keyframes pulse {
    0% {
        transform: scale(0.95);
        opacity: 0.7;
    }
    50% {
        transform: scale(1.3);
        opacity: 0;
    }
    100% {
        transform: scale(0.95);
        opacity: 0;
    }
}