/* 基础样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #121212, #1e00ff);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: 'Orbitron', sans-serif;
    font-weight: bold;
    margin-top: 2rem;
}

p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

a {
    color: #00ff99;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #8a00ff;
}

pre {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', monospace;
    color: #00ff99;
}

header {
    background: linear-gradient(135deg, #1e00ff, #8a00ff);
    padding: 20px;
    text-align: center;
    position: relative;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
    opacity: 0.2;
    z-index: -1;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.module {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.module:hover {
    transform: translateY(-5px);
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

button {
    background-color: #00ff99;
    color: #121212;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.3s ease;
}

button:hover::before {
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background-color: #00ff99;
    border-radius: 50%;
    animation: move 5s infinite ease-in-out;
}

@keyframes move {
    0% { transform: translate(0, 0); opacity: 1; }
    50% { transform: translate(100px, -100px); opacity: 0.5; }
    100% { transform: translate(0, 0); opacity: 1; }
}

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

    nav ul {
        flex-direction: column;
        align-items: center;
    }
}