/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', 'Montserrat', sans-serif;
        line-height: 1.6;
        color: #C0C0C0;
        background: radial-gradient(circle, #0D1B2A, #1E2D3D);
        overflow-x: hidden;
    }

    a {
        color: #4CAF50;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #9F86C0;
    }

    /* 头部样式 */
    header {
        width: 100%;
        padding: 20px;
        background: rgba(13, 27, 42, 0.8);
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1000;
    }

    header h1 {
        text-align: center;
        font-size: 2rem;
        color: #FFFFFF;
    }

    /* 主内容区域 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        padding: 20px;
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* 卡片样式 */
    .card {
        background-color: #1E2D3D;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
        overflow: hidden;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        padding: 20px;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    }

    /* 示例展示 */
    .example-section {
        background: rgba(28, 46, 66, 0.9);
        padding: 30px;
        border-radius: 10px;
    }

    .example-section h2 {
        color: #4CAF50;
        margin-bottom: 15px;
    }

    .example-section pre {
        background: #0D1B2A;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
    }

    .example-section code {
        font-family: 'Courier New', Courier, monospace;
        color: #9F86C0;
    }

    /* 动画背景 */
    .background-animation {
        position: fixed;
        top: 0;
        left: 0;
        width: 200%;
        height: 100%;
        background: repeating-linear-gradient(
            45deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.1) 10px,
            rgba(255, 255, 255, 0.1) 20px
        );
        animation: moveBackground 15s linear infinite;
        z-index: -1;
    }

    @keyframes moveBackground {
        from { transform: translateX(-100%); }
        to { transform: translateX(100%); }
    }

    /* 按钮样式 */
    .button {
        background: linear-gradient(135deg, #0D1B2A, #4CAF50);
        color: #FFFFFF;
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .button:hover {
        background: linear-gradient(135deg, #4CAF50, #0D1B2A);
        transform: scale(1.05);
    }

    /* 响应式网格布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
    }

    /* 图片样式 */
    .responsive-image {
        max-width: 100%;
        height: auto;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    /* 提示信息 */
    .notice {
        text-align: center;
        font-size: 1.2rem;
        color: #FF8C00;
        margin-top: 20px;
    }

    /* 自适应调整 */
    @media (max-width: 768px) {
        header h1 {
            font-size: 1.5rem;
        }

        .container {
            margin: 120px 10px 20px;
        }

        .example-section {
            padding: 20px;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.2rem;
        }

        .button {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
    }

    @media (min-width: 1024px) {
        .container {
            grid-template-columns: 3fr 1fr;
        }
    }

    /* 代码块样式 */
    pre {
        background: #0D1B2A;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
    }

    code {
        color: #FFD700;
    }

    /* 分层网格系统 */
    .layered-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    @media (max-width: 1024px) {
        .layered-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    @media (max-width: 768px) {
        .layered-grid {
            grid-template-columns: 1fr;
        }
    }