/* 全局样式定义 */
:root {
    --primary-color: #1A237E;
    --secondary-color: #651FFF;
    --background-color: #212121;
    --text-color: #FFFFFF;
    --card-bg: rgba(255, 255, 255, 0.1);
    --hover-color: rgba(255, 255, 255, 0.2);
}

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color), #424242);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--hover-color);
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}

.tabs {
    display: flex;
    justify-content: space-around;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 8px;
    margin-bottom: 20px;
}

.tab-item {
    padding: 15px 25px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    border-radius: 8px;
}

.tab-item:hover {
    background-color: var(--hover-color);
}

.content {
    opacity: 0;
    transition: opacity 0.5s ease;
    padding: 20px;
    border-radius: 8px;
}

.content.active {
    opacity: 1;
}

.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

pre {
    background: #303030;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', Courier, monospace;
    background: #303030;
    padding: 2px 4px;
    border-radius: 4px;
}

.icon {
    width: 40px;
    height: 40px;
    fill: var(--text-color);
    transition: transform 0.3s ease;
}

.icon:hover {
    transform: scale(1.2);
}

.mode-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 999;
}

button {
    background: var(--secondary-color);
    color: var(--text-color);
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--hover-color);
}

@media (max-width: 768px) {
    .tabs {
        flex-direction: column;
    }

    .tab-item {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .container {
        padding: 10px;
    }

    pre {
        font-size: 12px;
    }
}