/* 页面整体样式 */
body {
    margin: 0;
    font-family: 'Helvetica Neue', 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    overflow-x: hidden;
}
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}
header, footer {
    grid-column: span 12;
    text-align: center;
    background-color: #1E90FF;
    color: white;
    padding: 20px 0;
}
header h1 {
    font-size: 2rem;
    margin: 0;
}
main {
    grid-column: span 12;
}
@media (min-width: 768px) {
    main {
        grid-column: span 8;
        margin: 0 auto;
    }
}
section {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}
h2, h3 {
    color: #1E90FF;
}
a {
    color: #FF8C00;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #1E90FF;
}
button {
    background-color: #1E90FF;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    background-color: #FF8C00;
    transform: scale(1.1);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}
pre {
    background-color: #f4f4f4;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    header h1 {
        font-size: 1.5rem;
    }
}