/* 基本样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000f3a, #001e54);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
    }
    /* 网格系统布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
        padding: 20px;
    }
    .grid-item {
        background: rgba(0, 15, 58, 0.8);
        padding: 20px;
        border-radius: 10px;
        position: relative;
        overflow: hidden;
        transition: transform 0.3s ease, background-color 0.3s ease;
    }
    .grid-item:hover {
        transform: scale(1.05);
        background-color: #003366;
    }
    /* 标题样式 */
    h1, h2, h3, h4 {
        color: #00d2ff;
        margin-bottom: 15px;
    }
    h1 {
        font-size: 2.5em;
        text-align: center;
        margin-bottom: 30px;
    }
    h2 {
        font-size: 2em;
    }
    h3 {
        font-size: 1.75em;
    }
    h4 {
        font-size: 1.5em;
    }
    /* 段落与列表 */
    p {
        margin-bottom: 15px;
        color: #d1d1d1;
    }
    ul {
        list-style-type: disc;
        margin-left: 20px;
        margin-bottom: 15px;
    }
    li {
        margin-bottom: 10px;
    }
    /* 代码块样式 */
    pre {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }
    code {
        color: #00d2ff;
        font-family: 'Courier New', Courier, monospace;
    }
    /* 表格样式 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 15px;
    }
    th, td {
        border: 1px solid #444;
        padding: 10px;
        text-align: left;
    }
    th {
        background: #003366;
    }
    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }
    .image-gallery img {
        width: 100%;
        height: auto;
        border-radius: 5px;
    }
    /* 示范展示样式 */
    .demo-article {
        background: rgba(30, 30, 30, 0.9);
        padding: 20px;
        border-radius: 10px;
        margin-top: 30px;
    }
    .demo-article h2 {
        color: #ff5722;
    }
    /* 视觉提示 */
    .notice {
        text-align: center;
        font-size: 1.2em;
        margin-bottom: 20px;
        color: #ffcc00;
    }
    /* 动态粒子背景 */
    .particles-bg {
        position: fixed;
        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;
    }
    @keyframes aurora-move {
        0% { transform: translate(0, 0); }
        50% { transform: translate(100px, 100px); }
        100% { transform: translate(0, 0); }
    }
    /* 响应式设计 */
    @media (max-width: 768px) {
        h1 {
            font-size: 2em;
        }
        .grid-container {
            grid-template-columns: 1fr;
        }
    }
    @media (min-width: 769px) and (max-width: 1024px) {
        h1 {
            font-size: 2.2em;
        }
    }
    @media (min-width: 1025px) and (max-width: 1200px) {
        h1 {
            font-size: 2.5em;
        }
    }
    @media (min-width: 1201px) {
        h1 {
            font-size: 3em;
        }
    }