/* 基础样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }

    a {
        color: #ff8c00;
        text-decoration: none;
        transition: color 0.3s;
    }

    a:hover {
        color: #ffbf00;
    }

    /* 头部样式 */
    header {
        background: linear-gradient(90deg, #1e3c72, #2a5298);
        padding: 20px 0;
        text-align: center;
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 1000;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    }

    header h1 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 2.5rem;
        color: #ffffff;
    }

    /* 导航栏 */
    nav {
        margin-top: 10px;
    }

    nav ul {
        list-style: none;
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
    }

    nav ul li {
        margin: 0 15px;
    }

    nav ul li a {
        font-size: 1rem;
        font-weight: bold;
    }

    /* 主内容区 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    }

    .card h2 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 1.8rem;
        margin-bottom: 10px;
        color: #ff8c00;
    }

    .card p {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .card img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    /* 示例数据展示 */
    .example-section {
        grid-column: 1 / -1;
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 15px;
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        backdrop-filter: blur(10px);
    }

    .example-section h2 {
        font-family: 'Bebas Neue', sans-serif;
        font-size: 2rem;
        margin-bottom: 20px;
        color: #ff8c00;
        text-align: center;
    }

    .example-section pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        font-size: 0.9rem;
    }

    .example-section code {
        color: #dcdcdc;
    }

    /* 提示信息 */
    .notice {
        text-align: center;
        margin: 20px 0;
        font-size: 1.2rem;
        color: #ff8c00;
    }

    /* 底部样式 */
    footer {
        background: linear-gradient(90deg, #2a5298, #1e3c72);
        padding: 20px 0;
        text-align: center;
        position: fixed;
        width: 100%;
        bottom: 0;
        left: 0;
        box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.3);
    }

    footer p {
        font-size: 1rem;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            max-width: 1000px;
        }
    }

    @media (max-width: 1024px) {
        nav ul {
            flex-direction: column;
        }
        nav ul li {
            margin: 10px 0;
        }
        .container {
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
    }

    @media (max-width: 768px) {
        header h1 {
            font-size: 2rem;
        }
        .container {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.8rem;
        }
        nav ul li a {
            font-size: 0.9rem;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.5rem;
        }
        nav ul li a {
            font-size: 0.8rem;
        }
    }

    /* 按钮样式 */
    .btn {
        display: inline-block;
        padding: 10px 20px;
        background: #ff8c00;
        color: #ffffff;
        border-radius: 25px;
        transition: background 0.3s, transform 0.3s;
    }

    .btn:hover {
        background: #ffbf00;
        transform: scale(1.05);
    }

    /* 代码块样式 */
    .code-block {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.9rem;
        color: #dcdcdc;
    }