body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 20px;
}
h1 {
    color: #333;
}
div {
    margin-bottom: 20px;
}
pre {
    background: #f4f4f4;
    padding: 10px;
    border: 1px solid #ddd;
    overflow-x: auto;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0;
}
.fade-in-section {
    opacity: 0;
    transform: translateX(50%);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}
.fade-in-section.visible {
    opacity: 1;
    transform: none;
}
.fade-in-left {
    transform: translateX(-50%);
}