/* 全局样式与色彩设计 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0048ba, #6a0dad);
    color: #ffffff;
    overflow-x: hidden;
    position: relative;
}

header {
    text-align: center;
    padding: 20px 10px;
    background: rgba(0, 0, 0, 0.7);
    border-bottom: 2px solid #ff9100;
}

header h1 {
    font-size: 2.5em;
    font-weight: bold;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background-color: rgba(0, 0, 0, 0.7);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    overflow: hidden;
    position: relative;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

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

article {
    background-color: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 10px;
    line-height: 1.6;
}

article h2, article h3 {
    color: #ff9100;
    margin-top: 0;
}

article code {
    background-color: #333;
    color: #ff9100;
    padding: 5px 10px;
    border-radius: 5px;
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
}

pre {
    background-color: #222;
    color: #ffffff;
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
}

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

table th, table td {
    border: 1px solid #ff9100;
    padding: 10px;
    text-align: left;
}

table th {
    background-color: #ff9100;
    color: #000;
}

footer {
    text-align: center;
    padding: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: #ff9100;
    font-size: 0.9em;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    main {
        grid-template-columns: 1fr;
    }

    pre {
        font-size: 0.8em;
    }
}

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

    .card {
        padding: 15px;
    }
}