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

    /* 页面整体背景及字体 */
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(to bottom, #0074FF, #1E1E1E);
        color: #FFFFFF;
        line-height: 1.6;
        padding: 20px;
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        font-family: 'Poppins', sans-serif;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 3em;
        text-align: center;
        margin-top: 20px;
    }

    h2 {
        font-size: 2.5em;
        margin-top: 40px;
    }

    h3 {
        font-size: 2em;
        margin-top: 30px;
    }

    h4 {
        font-size: 1.5em;
        margin-top: 25px;
    }

    /* 段落样式 */
    p {
        margin-bottom: 15px;
        font-size: 1em;
    }

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

    a:hover {
        text-decoration: underline;
    }

    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    th, td {
        border: 1px solid #FFFFFF;
        padding: 10px;
        text-align: left;
        font-size: 0.9em;
    }

    th {
        background: rgba(255, 165, 0, 0.3);
    }

    /* 代码块样式 */
    pre, code {
        background: rgba(255, 255, 255, 0.1);
        padding: 10px;
        border-radius: 5px;
        font-family: 'Courier New', Courier, monospace;
        overflow-x: auto;
    }

    /* 按钮样式 */
    .button {
        background-color: #FFA500;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        font-size: 16px;
        cursor: pointer;
        transition: background-color 0.3s ease;
    }

    .button:hover {
        background-color: #e69500;
    }

    /* 卡片样式 */
    .card {
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        transition: transform 0.3s ease;
    }

    .card:hover {
        transform: scale(1.05);
    }

    /* 网格容器样式 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
        margin-top: 20px;
    }

    /* 图标样式 */
    .icon {
        fill: #FFA500;
        stroke: #FFFFFF;
        stroke-width: 2px;
        transition: transform 0.3s ease;
    }

    .icon:hover {
        transform: scale(1.2);
    }

    /* 图片样式 */
    img {
        width: 320px;
        height: 320px;
        object-fit: cover;
        margin: 10px;
        border-radius: 10px;
    }

    /* 分层滚动效果 */
    .layer {
        position: relative;
        z-index: 1;
        overflow: hidden;
    }

    .layer::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: radial-gradient(circle, rgb(255, 87, 34), transparent);
        animation: aurora-move 15s linear infinite;
        z-index: -1;
    }

    /* 动画定义 */
    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

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

    .fade-in {
        animation: fadeIn 1s ease-in-out;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        body {
            padding: 15px;
        }
    }

    @media (max-width: 1200px) {
        h1 {
            font-size: 2.5em;
        }

        h2 {
            font-size: 2em;
        }
    }

    @media (max-width: 1024px) {
        .grid-container {
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        }

        img {
            width: 100%;
            height: auto;
        }
    }

    @media (max-width: 768px) {
        h1 {
            font-size: 2em;
        }

        .button {
            padding: 8px 16px;
            font-size: 14px;
        }
    }

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

        .grid-container {
            grid-template-columns: 1fr;
        }
    }

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

        p {
            font-size: 0.9em;
        }
    }

    /* 文章示例展示样式 */
    .sample-article {
        background-color: rgba(0, 0, 0, 0.5);
        padding: 20px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .sample-article h2 {
        color: #FFA500;
    }

    .sample-article pre, .sample-article code {
        background: rgba(255, 255, 255, 0.2);
        padding: 15px;
        border-radius: 5px;
        font-size: 0.9em;
    }