/* 基础样式设置 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #00008B, #8A2BE2);
    color: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    text-shadow: 2px 2px 5px rgba(0, 255, 255, 0.5);
}

p {
    font-size: 16px;
    line-height: 1.5;
    margin: 1em 0;
}

a {
    color: #39FF14;
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

a:hover {
    color: #FFD700;
}

.container {
    max-width: 1440px;
    margin: auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.header {
    position: sticky;
    top: 0;
    background: rgba(0, 0, 139, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.hero-section {
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover,
                linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.hero-section h1 {
    font-size: 3rem;
    animation: fadeIn 2s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.featured-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.featured-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.3s ease-in-out;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.featured-item:hover {
    transform: scale(1.05);
}

.featured-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 10px;
}

.featured-item h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.article-container {
    background: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    padding: 30px;
    margin-top: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.article-container h2 {
    text-align: center;
    margin-bottom: 20px;
}

.article-container code {
    background: rgba(255, 255, 255, 0.1);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.9rem;
}

.article-container pre {
    background: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 20px 0;
}

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

.article-container th, .article-container td {
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px;
    text-align: left;
}

.article-container ul {
    list-style-type: disc;
    margin-left: 20px;
}

.footer {
    background: rgba(0, 0, 139, 0.9);
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.button {
    background: radial-gradient(circle, #FFFFFF, #C0C0C0);
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.3s ease-in-out;
}

.button:hover {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
        padding: 10px;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .featured-items {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 400px) {
    p {
        font-size: 14px;
    }

    pre code {
        font-size: 12px;
        white-space: pre-wrap;
    }
}