/* 自定义样式增强 */
.timeline-node {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-node.active {
    transform: scale(1.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .timeline-container {
        padding: 1rem;
    }
    
    .control-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .control-buttons button {
        width: 100%;
    }
}

/* 打印样式 */
@media print {
    .control-buttons {
        display: none;
    }
    
    .timeline-container {
        box-shadow: none;
    }
}
.timeline-container {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .timeline-container::-webkit-scrollbar {
            display: none;
        }
        .fade-in {
            animation: fadeIn 0.5s ease-in-out;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .slide-in {
            animation: slideIn 0.3s ease-in-out;
        }
        @keyframes slideIn {
            from { transform: translateX(-20px); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }