body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(to bottom, #00008B, #9400D3);
    color: white;
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 10;
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
    color: #00FF7F;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
}

nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 10px;
}

nav a {
    text-decoration: none;
    color: #00FF7F;
    font-weight: bold;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #FFD700;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
    max-width: 1440px;
    margin: 0 auto;
}

.card {
    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;
}

.card:hover {
    transform: translateY(-10px);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

h2, h3 {
    color: #00FF7F;
    margin-top: 0;
}

pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: left;
}

table th {
    background: #00008B;
    color: #fff;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .container {
        grid-template-columns: 1fr;
    }
}

footer {
    text-align: center;
    padding: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: #00FF7F;
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeIn 1.5s ease-in-out;
}