/* 全局样式定义 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    color: #d0d0d0;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3 {
    font-size: 2.5rem;
    font-weight: bold;
    color: #ffffff;
    text-align: center;
    margin: 20px 0;
}

p {
    font-size: 1rem;
    line-height: 1.6;
    margin: 10px 0;
    padding: 0 20px;
}

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

.module {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease-in-out;
}

.module:hover {
    transform: scale(1.05);
}

code {
    background: rgba(0, 0, 0, 0.8);
    color: #00ff99;
    padding: 10px;
    border-radius: 5px;
    display: block;
    margin: 10px 0;
    white-space: pre-wrap;
    word-break: break-word;
}

pre {
    overflow: auto;
    padding: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.1);
}

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

th {
    background: rgba(0, 0, 0, 0.2);
}

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

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px 20px;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    margin: 0 10px;
}

.sidebar {
    position: fixed;
    right: 20px;
    bottom: 20px;
    background: rgba(0, 0, 0, 0.8);
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
}

@keyframes fadeInOut {
    0% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

.animated-element {
    animation: fadeInOut 3s infinite;
}

@media (max-width: 768px) {
    h1, h2, h3 {
        font-size: 1.8rem;
    }

    .container {
        grid-template-columns: 1fr;
    }

    .navbar {
        flex-direction: column;
    }
}