/* 全局样式与基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #FFFFFF;
    background: linear-gradient(135deg, #0D47A1, #651FFF);
    position: relative;
    overflow-x: hidden;
}
h1, h2, h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: #FF9800;
}
p {
    font-size: 1rem;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
}
a {
    text-decoration: none;
    color: #8BC34A;
    transition: color 0.3s ease;
}
a:hover {
    color: #E65100;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 16px;
}
header {
    grid-column: span 12;
    text-align: center;
    padding: 40px 0;
    background: rgba(13, 71, 161, 0.8);
    border-bottom: 2px solid #FF9800;
}
header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}
header p {
    font-size: 1.2rem;
    color: #FFFFFF;
}
.module {
    grid-column: span 4;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}
.module:hover {
    transform: translateY(-5px);
}
img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}
code {
    display: block;
    background: rgba(0, 0, 0, 0.5);
    color: #FFFFFF;
    padding: 10px;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    word-break: break-word;
}
pre {
    overflow-x: auto;
    margin-bottom: 1.5rem;
}
button {
    background-color: #FF9800;
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}
button:hover {
    transform: scale(1.1);
    background-color: #E65100;
}
@media (max-width: 768px) {
    .module {
        grid-column: span 6;
    }
}
@media (max-width: 480px) {
    .module {
        grid-column: span 12;
    }
    header h1 {
        font-size: 2rem;
    }
    p {
        font-size: 0.9rem;
    }
}