/* 全局样式 */
body {
    margin: 0;
    font-family: 'Open Sans', sans-serif;
    color: #FFFFFF;
    background: linear-gradient(135deg, #0F4C81, #000000);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Roboto Slab', serif;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

a {
    color: #32CD32;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #BDBDBD;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    position: relative;
}

header {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1), transparent),
                radial-gradient(circle at top right, rgba(50, 205, 50, 0.1), transparent);
    animation: aurora-move 15s linear infinite;
}

@keyframes aurora-move {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

main {
    background: linear-gradient(to bottom, #000000, #0F4C81);
    padding: 40px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    position: relative;
    margin-bottom: 40px;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: #32CD32;
    margin: 10px auto;
}

.article-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 20px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
}

article {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

pre {
    background: #000000;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    border: 1px solid #BDBDBD;
}

code {
    color: #32CD32;
    font-size: 0.9rem;
}

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

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

th {
    background: #0F4C81;
}

td {
    background: #000000;
}

button {
    background: #32CD32;
    border: none;
    padding: 10px 20px;
    color: #000000;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 5px;
}

button:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px #32CD32;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    header {
        height: 80vh;
    }

    .section-title {
        font-size: 2rem;
    }
}