/* 基础样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #003366, #800080, #00FF00);
    background-size: 400% 400%;
    animation: gradient-animation 10s ease infinite;
    color: #fff;
    overflow-x: hidden;
}

@keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

h1, h2, h3, h4 {
    text-align: center;
    background: -webkit-linear-gradient(#0074D9, #FF4136);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 20px 0;
}

p {
    line-height: 1.6;
    padding: 10px;
    color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

article {
    background: rgba(0, 0, 0, 0.6);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
}

pre {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

button {
    background: linear-gradient(135deg, #0074D9, #FF4136);
    border: none;
    padding: 10px 20px;
    color: white;
    border-radius: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

button:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

th, td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
}

th {
    background-color: #0074D9;
    color: white;
}

img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 10px 0;
    alt="";
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .container {
        padding: 10px;
    }

    article {
        padding: 15px;
    }

    button {
        padding: 8px 15px;
    }
}

@media (max-width: 768px) {
    h1, h2, h3, h4 {
        font-size: 1.5rem;
    }

    p {
        font-size: 0.9rem;
    }

    table {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 5px;
    }

    article {
        padding: 10px;
    }

    button {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    img {
        width: 100%;
        height: auto;
    }
}