/* 基本样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #001f3f, #000000);
    color: #ffffff;
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    color: #FFD700;
}

a {
    color: #00FF7F;
    text-decoration: none;
    rel: nofollow;
}

a:hover {
    color: #FFA500;
    transition: color 0.3s ease;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    padding: 20px;
    z-index: 1000;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
}

.section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.article-content {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
}

pre {
    background: #1a1a1a;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #00FF7F;
    font-family: 'Courier New', Courier, monospace;
}

img {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 10px;
}

.footer {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.8);
}

@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        gap: 15px;
    }
    .grid-container {
        display: flex;
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    header {
        padding: 10px;
    }
    .section {
        padding: 40px 10px;
    }
}

@media (min-width: 1440px) {
    .article-content {
        padding: 50px;
    }
}

.fade-in {
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

button {
    background: #FFA500;
    border: none;
    padding: 10px 20px;
    color: #000;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s ease;
}

button:hover {
    background: #FFD700;
}