/* 基础样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    color: #D3D3D3;
    background: radial-gradient(circle, #0A2647, #1E3A5F);
    line-height: 1.6;
    overflow-x: hidden;
}
h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    color: #FFFFFF;
    margin-top: 0;
}
a {
    color: #FFC300;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #FFD700;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to right, #0A2647, #1E3A5F);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}
.nav-links a {
    margin: 0 15px;
    font-size: 16px;
}
.hero-section {
    height: 80vh;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover, linear-gradient(to bottom, #0A2647, transparent);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: linear-gradient(45deg, rgba(10, 38, 71, 0.5), transparent);
    animation: aurora-move 15s linear infinite;
}
@keyframes aurora-move {
    from { transform: translateX(-50%); }
    to { transform: translateX(0); }
}
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
}
.feature-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-10px);
}
.article-section {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 30px;
    margin-bottom: 40px;
}
pre {
    background: #1E3A5F;
    color: #FFC300;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}
code {
    color: #FFC300;
    font-family: 'Courier New', Courier, monospace;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
th, td {
    border: 1px solid #444;
    padding: 10px;
    text-align: left;
}
th {
    background: #1E3A5F;
    color: white;
}
.footer {
    background: linear-gradient(to right, #0A2647, #1E3A5F);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
    }
    .nav-links {
        margin-top: 10px;
    }
    .features {
        grid-template-columns: 1fr;
    }
}