/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #4B0082, #00FFFF, #FF00FF);
    background-size: 400% 400%;
    animation: gradient-animation 10s ease infinite;
    color: #FFFFFF;
    line-height: 1.6;
}

@keyframes gradient-animation {
    0% {background-position: 0% 50%;}
    50% {background-position: 100% 50%;}
    100% {background-position: 0% 50%;}
}

h1, h2, h3 {
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
    color: #FFFFFF;
}

p {
    font-family: 'Helvetica', sans-serif;
    font-weight: normal;
    color: #E0E0E0;
    padding: 0 20px;
}

a {
    color: #FFD700;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background-color: rgba(44, 62, 80, 0.8);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding: 20px;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: scale(1.05);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}

button {
    background-color: #3498DB;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    display: block;
    margin: 20px auto;
}

button:hover {
    background-color: #2980B9;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

code {
    background-color: rgba(0, 0, 0, 0.5);
    color: #FFD700;
    padding: 5px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
}

pre {
    background-color: rgba(0, 0, 0, 0.6);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: rgba(0, 0, 0, 0.6);
}

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

th {
    background-color: #3498DB;
    color: white;
}

td {
    color: #E0E0E0;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    pre {
        font-size: 14px;
    }
}