/* 全局样式设置 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: radial-gradient(circle, #87CEEB, #90EE90);
    color: #333;
    line-height: 1.6;
    animation: aurora-move 15s linear infinite;
    overflow-x: hidden;
}
@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Cursive', serif;
    color: #6B8E23;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.card {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 20px;
    transition: transform 0.3s ease-in-out;
}
.card:hover {
    transform: translateY(-5px);
}
.image-box img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
}
.button {
    background: linear-gradient(135deg, #4CAF50, #8BC34A);
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: transform 0.3s ease-in-out;
}
.button:hover {
    transform: scale(1.1);
}
.code-block {
    background: #f4f4f4;
    padding: 15px;
    border-radius: 5px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    overflow-x: auto;
}
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    .card {
        padding: 15px;
    }
}
@media (max-width: 480px) {
    h1 {
        font-size: 1.8em;
    }
    h2 {
        font-size: 1.5em;
    }
    .button {
        font-size: 0.9em;
        padding: 8px 15px;
    }
}