/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        color: #333333;
        background: linear-gradient(135deg, #1E90FF, #6A5ACD, #8B008B);
        background-size: 600% 600%;
        animation: gradientAnimation 15s ease infinite;
        padding: 20px;
    }
    @keyframes gradientAnimation {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }
    h1, h2, h3, h4 {
        color: #0D2C54;
        margin-bottom: 20px;
        text-align: center;
        text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    }
    h1 {
        font-size: 2.5rem;
        margin-top: 20px;
    }
    h2 {
        font-size: 2rem;
        margin-top: 40px;
    }
    h3 {
        font-size: 1.75rem;
        margin-top: 30px;
    }
    h4 {
        font-size: 1.5rem;
        margin-top: 25px;
    }
    p {
        font-size: 1rem;
        margin-bottom: 15px;
        line-height: 1.8;
    }
    ul {
        list-style-type: disc;
        margin-left: 20px;
        margin-bottom: 15px;
    }
    li {
        margin-bottom: 10px;
    }
    a {
        color: #FFA500;
        text-decoration: none;
        transition: color 0.3s ease;
    }
    a:hover {
        color: #FF4500;
    }
    a[rel="nofollow"]::after {
        content: "";
    }
    /* 容器布局 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }
    /* 卡片样式 */
    .card {
        background-color: #FFFFFF;
        border: 1px solid #1E90FF;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        padding: 20px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
        overflow: hidden;
    }
    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    .card::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, rgba(255,87,34,0.2), transparent);
        animation: auroraMove 15s linear infinite;
        z-index: 0;
    }
    @keyframes auroraMove {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
    }
    .card-content {
        position: relative;
        z-index: 1;
    }
    /* 响应式网格布局 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
    /* 图片样式 */
    .card img {
        width: 100%;
        height: auto;
        border-radius: 8px;
        margin-bottom: 15px;
    }
    /* 代码块样式 */
    pre {
        background: #f5f5f5;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }
    code {
        font-family: 'Courier New', Courier, monospace;
        color: #d63384;
    }
    /* 提示文字 */
    .reference-note {
        text-align: center;
        font-size: 1.2rem;
        color: #333333;
        margin: 30px 0;
        font-weight: bold;
    }
    /* 栅格布局媒体查询 */
    @media (max-width: 1440px) {
        body {
            padding: 15px;
        }
    }
    @media (max-width: 1200px) {
        .container {
            padding: 15px;
        }
    }
    @media (max-width: 1024px) {
        h1 {
            font-size: 2.2rem;
        }
        h2 {
            font-size: 1.8rem;
        }
    }
    @media (max-width: 768px) {
        h1 {
            font-size: 2rem;
        }
        h2 {
            font-size: 1.6rem;
        }
        .grid {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 480px) {
        h1 {
            font-size: 1.8rem;
        }
        h2 {
            font-size: 1.4rem;
        }
        p {
            font-size: 0.95rem;
        }
    }
    @media (max-width: 320px) {
        h1 {
            font-size: 1.6rem;
        }
        h2 {
            font-size: 1.2rem;
        }
        p {
            font-size: 0.9rem;
        }
    }