/* 全局样式 */
    body {
        margin: 0;
        padding: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #004AAD, #4A90E2);
        color: #ffffff;
        overflow-x: hidden;
    }

    /* 容器 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
        display: grid;
        grid-template-columns: 1fr 3fr 1fr;
        gap: 20px;
    }

    /* 头部样式 */
    header {
        grid-column: 1 / 4;
        text-align: center;
        padding: 50px 0;
        background: rgba(0, 0, 0, 0.5);
        position: relative;
        animation: aurora-move 15s linear infinite;
    }

    header h1 {
        font-size: 3rem;
        font-weight: bold;
        text-shadow: 2px 2px 5px rgba(0,0,0,0.3);
    }

    /* 主内容 */
    main {
        grid-column: 2 / 3;
    }

    /* 侧边栏 */
    aside {
        grid-column: 1 / 2;
    }

    /* 页脚 */
    footer {
        grid-column: 1 / 4;
        text-align: center;
        padding: 20px 0;
        background: rgba(0, 0, 0, 0.5);
    }

    /* 链接样式 */
    a {
        color: #FFA500;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 按钮样式 */
    .button {
        background-color: #FFA500;
        color: #ffffff;
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .button:hover {
        transform: scale(1.1) translateY(-5px);
        box-shadow: 0 8px 15px rgba(0,0,0,0.2);
    }

    /* 代码块样式 */
    pre {
        background-color: rgba(0, 0, 0, 0.7);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        margin-bottom: 20px;
    }

    code {
        color: #00FF00;
    }

    /* 图片样式 */
    .images-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 10px;
    }

    .images-grid img {
        width: 100%;
        height: auto;
        border-radius: 8px;
    }

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

    .animated-background {
        background: radial-gradient(circle, rgba(255, 87, 34, 0.6), transparent);
        animation: aurora-move 15s linear infinite;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.5rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            grid-template-columns: 1fr 2fr;
        }

        aside {
            display: none;
        }
    }

    @media (max-width: 1024px) {
        header h1 {
            font-size: 2rem;
        }
    }

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

        header {
            padding: 30px 0;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2rem;
        }
    }