/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 响应式图片 */
img {
    max-width: 100%;
    height: auto;
}

/* 打印样式 */
@media print {
    .no-print {
        display: none !important;
    }
}
/* 高亮效果 */
.highlight-box {
    position: relative;
}

.highlight-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid transparent;
    border-radius: 12px;
    background: linear-gradient(45deg, #3B82F6, #8B5CF6);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* 金字塔结构样式 */
.pyramid-container {
    perspective: 1000px;
}

.pyramid-container > div > div {
    transition: all 0.3s ease;
    transform-style: preserve-3d;
}

.pyramid-container > div > div:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}