/* 基础样式设置 */
:root {
    --primary-color: #8B4513; /* 棕色 */
    --secondary-color: #F4A460; /* 橘黄色 */
    --accent-color: #1E90FF; /* 电光蓝 */
    --background-gradient: linear-gradient(135deg, #f4e8d3, #e6dace);
    --highlight-gradient: linear-gradient(90deg, #ff9a76, #f4a460);
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    --font-family-title: 'Courier', monospace;
    --font-family-body: 'Arial', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-body);
    background: var(--background-gradient);
    color: var(--primary-color);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.header {
    width: 100%;
    text-align: center;
    padding: 20px;
    background: var(--highlight-gradient);
    border-radius: 10px;
    color: #fff;
    font-family: var(--font-family-title);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.main-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: transform 0.3s ease-in-out;
}

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

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    object-fit: cover;
    transition: filter 0.3s ease-in-out;
}

.image-grid img:hover {
    filter: grayscale(50%);
}

.article-container {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
}

.article-container h2, .article-container h3 {
    font-family: var(--font-family-title);
    color: var(--primary-color);
    margin-bottom: 10px;
}

.article-container p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.article-container pre {
    background: #eaeaea;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
    font-size: 0.9rem;
}

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

.article-container th, .article-container td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.article-container th {
    background: var(--accent-color);
    color: #fff;
}

.footer {
    text-align: center;
    font-size: 0.9rem;
    color: #666;
    margin-top: 20px;
}

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

    .image-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}