/* 全局样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif, '思源黑体', sans-serif;
        background: linear-gradient(135deg, #0A1F44, #F5F7FA);
        color: #0A1F44;
        line-height: 1.6;
    }

    /* 容器 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 头部样式 */
    header {
        text-align: center;
        padding: 50px 0;
        background: radial-gradient(circle, rgba(255, 135, 55, 0.3), transparent);
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 2.5em;
        color: #FFC947;
        margin-bottom: 10px;
    }

    header p {
        font-size: 1.2em;
    }

    /* 导航栏 */
    nav {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-bottom: 40px;
    }

    nav a {
        text-decoration: none;
        color: #0A1F44;
        font-weight: bold;
        transition: color 0.3s ease;
    }

    nav a:hover {
        color: #FFC947;
    }

    /* 主体内容 */
    .main {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .card {
        background-color: #F5F7FA;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        overflow: hidden;
        transition: transform 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
    }

    .card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    .card-content {
        padding: 20px;
    }

    .card-content h3 {
        margin-top: 0;
        color: #0A1F44;
    }

    .card-content p {
        color: #555555;
    }

    /* 示例展示 */
    .example {
        margin: 50px 0;
        padding: 20px;
        background-color: #FFF8E1;
        border-left: 5px solid #FFC947;
        border-radius: 5px;
    }

    .example h2 {
        color: #0A1F44;
        margin-bottom: 20px;
    }

    .example pre {
        background-color: #272822;
        color: #F8F8F2;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-size: 0.9em;
    }

    .example code {
        font-family: 'Courier New', Courier, monospace;
    }

    /* 脚注 */
    footer {
        text-align: center;
        padding: 30px 0;
        background-color: #0A1F44;
        color: #F5F7FA;
    }

    /* 动画 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        header h1 {
            font-size: 2em;
        }

        .card img {
            height: 150px;
        }
    }

    @media (max-width: 480px) {
        nav {
            flex-direction: column;
            gap: 10px;
        }

        header {
            padding: 30px 0;
        }

        .example pre {
            font-size: 0.8em;
        }
    }

    /* 代码块样式 */
    pre {
        background-color: #2d2d2d;
        color: #ccc;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        font-size: 1em;
    }

    /* 按钮样式 */
    .button-primary {
        background-color: #FFC947;
        color: #0A1F44;
        border: none;
        padding: 10px 20px;
        font-size: 16px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.3s ease;
        border-radius: 5px;
        text-decoration: none;
        display: inline-block;
    }

    .button-primary:hover {
        background-color: #FFD87D;
        transform: scale(1.05);
    }