/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #0d1b2a, #162447);
    color: #ffffff;
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
h1, h2, h3, h4 {
    font-weight: bold;
    color: #00ffff;
    text-shadow: 2px 2px 5px rgba(0, 255, 255, 0.5);
}
h1 {
    text-align: center;
    font-size: 2.5rem;
    margin-top: 40px;
}
h2 {
    font-size: 2rem;
    border-bottom: 2px solid #00ff80;
    padding-bottom: 10px;
}
p {
    font-size: 1rem;
    color: #e0e0e0;
    text-align: justify;
}
code {
    background-color: rgba(0, 255, 255, 0.1);
    padding: 5px 10px;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    color: #00ff80;
    display: block;
    overflow-x: auto;
}
pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 15px;
    border-radius: 10px;
    margin: 20px 0;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}
th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
th {
    background: rgba(0, 255, 255, 0.2);
    color: #00ffff;
}
img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 255, 255, 0.3);
}
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 10px;
}
.image-container {
    position: relative;
    overflow: hidden;
}
.image-container:hover .overlay {
    opacity: 0;
    transition: opacity 0.3s ease;
}
.highlight {
    background: linear-gradient(to right, rgba(0, 255, 255, 0.2), rgba(0, 255, 255, 0));
    padding: 10px;
    border-radius: 10px;
}
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    p {
        font-size: 0.9rem;
    }
    code {
        font-size: 0.8rem;
    }
}