/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to bottom, #0A192F, #111827);
    color: #cfd8dc;
    line-height: 1.6;
}
h1, h2, h3 {
    color: #ffffff;
    text-align: center;
    margin-top: 40px;
}
p {
    font-size: 16px;
    margin: 15px 0;
}
a {
    color: #4CAF50;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
pre {
    background-color: #1E293B;
    color: #d1d5db;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
}
.module {
    margin-bottom: 40px;
    padding: 20px;
    background: linear-gradient(to right, #1E293B, #0A192F);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    pre {
        font-size: 12px;
    }
}
.button {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}
.button:hover {
    background-color: #45a049;
}
.scroll-animation {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.5s ease;
}
.scroll-animation.active {
    opacity: 1;
    transform: translateY(0);
}
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.grid-item {
    background: linear-gradient(to bottom, #1E293B, #0A192F);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}
@media (max-width: 480px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}