/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #001f3f, #1a1a1a);
    color: #ffffff;
    line-height: 1.6;
}

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

h1, h2, h3, h4 {
    font-weight: 700;
    color: #00ff80;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

p {
    font-size: 1rem;
    color: #d4d4d4;
}

a {
    color: #0074d9;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #0056b3;
}

button {
    background-color: #0074d9;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.3s ease;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
    transform: scale(1.1);
}

code {
    background-color: #001f3f;
    color: #00ff80;
    padding: 5px;
    border-radius: 4px;
    display: block;
    overflow-x: auto;
    white-space: pre-wrap;
}

pre {
    background-color: #1a1a1a;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

table th, table td {
    border: 1px solid #333;
    padding: 10px;
    text-align: left;
}

table th {
    background-color: #001f3f;
    color: #ffffff;
}

.card {
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    object-fit: cover;
}

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

    code {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }

    p {
        font-size: 0.9rem;
    }
}